Filename | /home/ss5/perl5/perlbrew/perls/perl-5.22.0/lib/5.22.0/B/Deparse.pm |
Statements | Executed 152 statements in 23.5ms |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
---|---|---|---|---|---|
1 | 1 | 1 | 3.35ms | 3.35ms | BEGIN@3368 | B::Deparse::
1 | 1 | 1 | 187µs | 204µs | BEGIN@363 | B::Deparse::
1 | 1 | 1 | 83µs | 5.89ms | BEGIN@55 | B::Deparse::
1 | 1 | 1 | 13µs | 13µs | BEGIN@2814 | B::Deparse::
66 | 2 | 1 | 12µs | 12µs | CORE:sort (opcode) | B::Deparse::
1 | 1 | 1 | 12µs | 12µs | BEGIN@2781 | B::Deparse::
1 | 1 | 1 | 9µs | 16µs | BEGIN@67 | B::Deparse::
1 | 1 | 1 | 9µs | 34µs | BEGIN@11 | B::Deparse::
1 | 1 | 1 | 9µs | 16µs | BEGIN@4831 | B::Deparse::
1 | 1 | 1 | 9µs | 12µs | BEGIN@4588 | B::Deparse::
1 | 1 | 1 | 8µs | 8µs | BEGIN@1679 | B::Deparse::
1 | 1 | 1 | 8µs | 20µs | BEGIN@4513 | B::Deparse::
1 | 1 | 1 | 7µs | 23µs | BEGIN@4589 | B::Deparse::
1 | 1 | 1 | 7µs | 613µs | BEGIN@12 | B::Deparse::
1 | 1 | 1 | 6µs | 16µs | BEGIN@2371 | B::Deparse::
1 | 1 | 1 | 6µs | 16µs | BEGIN@721 | B::Deparse::
1 | 1 | 1 | 6µs | 18µs | BEGIN@4514 | B::Deparse::
1 | 1 | 1 | 6µs | 13µs | BEGIN@972 | B::Deparse::
1 | 1 | 1 | 5µs | 5µs | BEGIN@870 | B::Deparse::
1 | 1 | 1 | 5µs | 7µs | BEGIN@50 | B::Deparse::
1 | 1 | 1 | 4µs | 17µs | BEGIN@51 | B::Deparse::
1 | 1 | 1 | 3µs | 3µs | CORE:qr (opcode) | B::Deparse::
1 | 1 | 1 | 3µs | 3µs | BEGIN@4723 | B::Deparse::
1 | 1 | 1 | 2µs | 2µs | BEGIN@52 | B::Deparse::
0 | 0 | 0 | 0s | 0s | AUTOLOAD | B::Deparse::
0 | 0 | 0 | 0s | 0s | DESTROY | B::Deparse::
0 | 0 | 0 | 0s | 0s | WARN_MASK | B::Deparse::
0 | 0 | 0 | 0s | 0s | __ANON__[:1572] | B::Deparse::
0 | 0 | 0 | 0s | 0s | __ANON__[:1649] | B::Deparse::
0 | 0 | 0 | 0s | 0s | __ANON__[:2406] | B::Deparse::
0 | 0 | 0 | 0s | 0s | __ANON__[:4598] | B::Deparse::
0 | 0 | 0 | 0s | 0s | __ANON__[:4980] | B::Deparse::
0 | 0 | 0 | 0s | 0s | __ANON__[:935] | B::Deparse::
0 | 0 | 0 | 0s | 0s | __ANON__[:981] | B::Deparse::
0 | 0 | 0 | 0s | 0s | _features_from_bundle | B::Deparse::
0 | 0 | 0 | 0s | 0s | _method | B::Deparse::
0 | 0 | 0 | 0s | 0s | _op_is_or_was | B::Deparse::
0 | 0 | 0 | 0s | 0s | _pessimise_walk | B::Deparse::
0 | 0 | 0 | 0s | 0s | _pessimise_walk_exe | B::Deparse::
0 | 0 | 0 | 0s | 0s | ambient_pragmas | B::Deparse::
0 | 0 | 0 | 0s | 0s | anon_hash_or_list | B::Deparse::
0 | 0 | 0 | 0s | 0s | assoc_class | B::Deparse::
0 | 0 | 0 | 0s | 0s | balanced_delim | B::Deparse::
0 | 0 | 0 | 0s | 0s | baseop | B::Deparse::
0 | 0 | 0 | 0s | 0s | begin_is_use | B::Deparse::
0 | 0 | 0 | 0s | 0s | binop | B::Deparse::
0 | 0 | 0 | 0s | 0s | check_proto | B::Deparse::
0 | 0 | 0 | 0s | 0s | code_list | B::Deparse::
0 | 0 | 0 | 0s | 0s | coderef2text | B::Deparse::
0 | 0 | 0 | 0s | 0s | collapse | B::Deparse::
0 | 0 | 0 | 0s | 0s | compile | B::Deparse::
0 | 0 | 0 | 0s | 0s | const | B::Deparse::
0 | 0 | 0 | 0s | 0s | const_dumper | B::Deparse::
0 | 0 | 0 | 0s | 0s | const_sv | B::Deparse::
0 | 0 | 0 | 0s | 0s | cop_subs | B::Deparse::
0 | 0 | 0 | 0s | 0s | declare_hinthash | B::Deparse::
0 | 0 | 0 | 0s | 0s | declare_hints | B::Deparse::
0 | 0 | 0 | 0s | 0s | declare_warnings | B::Deparse::
0 | 0 | 0 | 0s | 0s | deparse | B::Deparse::
0 | 0 | 0 | 0s | 0s | deparse_binop_left | B::Deparse::
0 | 0 | 0 | 0s | 0s | deparse_binop_right | B::Deparse::
0 | 0 | 0 | 0s | 0s | deparse_format | B::Deparse::
0 | 0 | 0 | 0s | 0s | deparse_root | B::Deparse::
0 | 0 | 0 | 0s | 0s | deparse_sub | B::Deparse::
0 | 0 | 0 | 0s | 0s | double_delim | B::Deparse::
0 | 0 | 0 | 0s | 0s | dq | B::Deparse::
0 | 0 | 0 | 0s | 0s | dq_unop | B::Deparse::
0 | 0 | 0 | 0s | 0s | dquote | B::Deparse::
0 | 0 | 0 | 0s | 0s | e_anoncode | B::Deparse::
0 | 0 | 0 | 0s | 0s | e_method | B::Deparse::
0 | 0 | 0 | 0s | 0s | elem | B::Deparse::
0 | 0 | 0 | 0s | 0s | elem_or_slice_array_name | B::Deparse::
0 | 0 | 0 | 0s | 0s | elem_or_slice_single_index | B::Deparse::
0 | 0 | 0 | 0s | 0s | escape_re | B::Deparse::
0 | 0 | 0 | 0s | 0s | escape_str | B::Deparse::
0 | 0 | 0 | 0s | 0s | feature_enabled | B::Deparse::
0 | 0 | 0 | 0s | 0s | find_our_type | B::Deparse::
0 | 0 | 0 | 0s | 0s | find_scope | B::Deparse::
0 | 0 | 0 | 0s | 0s | find_scope_en | B::Deparse::
0 | 0 | 0 | 0s | 0s | find_scope_st | B::Deparse::
0 | 0 | 0 | 0s | 0s | for_loop | B::Deparse::
0 | 0 | 0 | 0s | 0s | ftst | B::Deparse::
0 | 0 | 0 | 0s | 0s | givwhen | B::Deparse::
0 | 0 | 0 | 0s | 0s | gv_name | B::Deparse::
0 | 0 | 0 | 0s | 0s | gv_or_padgv | B::Deparse::
0 | 0 | 0 | 0s | 0s | hint_pragmas | B::Deparse::
0 | 0 | 0 | 0s | 0s | indent | B::Deparse::
0 | 0 | 0 | 0s | 0s | indirop | B::Deparse::
0 | 0 | 0 | 0s | 0s | init | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_for_loop | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_ifelse_cont | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_lexical_subs | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_miniwhile | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_scalar | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_scope | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_state | B::Deparse::
0 | 0 | 0 | 0s | 0s | is_subscriptable | B::Deparse::
0 | 0 | 0 | 0s | 0s | keyword | B::Deparse::
0 | 0 | 0 | 0s | 0s | lex_in_scope | B::Deparse::
0 | 0 | 0 | 0s | 0s | lineseq | B::Deparse::
0 | 0 | 0 | 0s | 0s | list_const | B::Deparse::
0 | 0 | 0 | 0s | 0s | listop | B::Deparse::
0 | 0 | 0 | 0s | 0s | logassignop | B::Deparse::
0 | 0 | 0 | 0s | 0s | logop | B::Deparse::
0 | 0 | 0 | 0s | 0s | loop_common | B::Deparse::
0 | 0 | 0 | 0s | 0s | loopex | B::Deparse::
0 | 0 | 0 | 0s | 0s | mapop | B::Deparse::
0 | 0 | 0 | 0s | 0s | matchop | B::Deparse::
0 | 0 | 0 | 0s | 0s | maybe_local | B::Deparse::
0 | 0 | 0 | 0s | 0s | maybe_my | B::Deparse::
0 | 0 | 0 | 0s | 0s | maybe_parens | B::Deparse::
0 | 0 | 0 | 0s | 0s | maybe_parens_func | B::Deparse::
0 | 0 | 0 | 0s | 0s | maybe_parens_unop | B::Deparse::
0 | 0 | 0 | 0s | 0s | maybe_qualify | B::Deparse::
0 | 0 | 0 | 0s | 0s | maybe_targmy | B::Deparse::
0 | 0 | 0 | 0s | 0s | meth_rclass_sv | B::Deparse::
0 | 0 | 0 | 0s | 0s | meth_sv | B::Deparse::
0 | 0 | 0 | 0s | 0s | method | B::Deparse::
0 | 0 | 0 | 0s | 0s | multideref_var_name | B::Deparse::
0 | 0 | 0 | 0s | 0s | new | B::Deparse::
0 | 0 | 0 | 0s | 0s | next_todo | B::Deparse::
0 | 0 | 0 | 0s | 0s | null | B::Deparse::
0 | 0 | 0 | 0s | 0s | pad_subs | B::Deparse::
0 | 0 | 0 | 0s | 0s | padany | B::Deparse::
0 | 0 | 0 | 0s | 0s | padname | B::Deparse::
0 | 0 | 0 | 0s | 0s | padname_sv | B::Deparse::
0 | 0 | 0 | 0s | 0s | padval | B::Deparse::
0 | 0 | 0 | 0s | 0s | pchr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pessimise | B::Deparse::
0 | 0 | 0 | 0s | 0s | pfixop | B::Deparse::
0 | 0 | 0 | 0s | 0s | populate_curcvlex | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_aassign | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_abs | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_accept | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_add | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_aeach | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_aelem | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_aelemfast | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_aelemfast_lex | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_akeys | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_alarm | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_and | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_andassign | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_anonlist | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_aslice | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_atan2 | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_av2arylen | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_avalues | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_backtick | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_bind | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_binmode | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_bit_and | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_bit_or | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_bit_xor | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_bless | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_boolkeys | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_break | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_caller | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_chdir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_chmod | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_chomp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_chop | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_chown | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_chr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_chroot | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_close | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_closedir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_complement | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_concat | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_cond_expr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_connect | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_const | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_continue | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_cos | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_crypt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_dbmclose | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_dbmopen | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_dbstate | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_defined | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_delete | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_die | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_divide | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_dofile | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_dor | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_dorassign | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_dump | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_each | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_egrent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ehostent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_enetent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_entereval | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_entersub | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_enterwrite | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_eof | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_eprotoent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_epwent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_eq | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_eservent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_exec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_exists | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_exit | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_exp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fcntl | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fileno | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_flock | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_flop | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fork | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_formline | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftatime | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftbinary | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftblk | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftchr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftctime | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftdir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fteexec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fteowned | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fteread | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftewrite | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftfile | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftis | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftlink | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftmtime | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftpipe | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftrexec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftrowned | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftrread | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftrwrite | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftsgid | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftsize | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftsock | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftsuid | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftsvtx | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fttext | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_fttty | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ftzero | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ge | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gelem | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_getc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_getlogin | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_getpeername | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_getpgrp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_getppid | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_getpriority | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_getsockname | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ggrent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ggrgid | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ggrnam | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ghbyaddr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ghbyname | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ghostent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_glob | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gmtime | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gnbyaddr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gnbyname | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gnetent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_goto | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gpbyname | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gpbynumber | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gprotoent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gpwent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gpwnam | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gpwuid | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_grepstart | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_grepwhile | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gsbyname | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gsbyport | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gservent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gsockopt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_gvsv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_helem | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_hex | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_hslice | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_add | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_divide | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_eq | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_ge | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_gt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_le | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_lt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_modulo | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_multiply | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_ncmp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_ne | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_negate | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_postdec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_postinc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_predec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_preinc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_i_subtract | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_index | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_int | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_introcv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ioctl | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_join | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_keys | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_kill | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_kvaslice | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_kvhslice | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_last | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lcfirst | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_le | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_leave | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_leavegiven | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_leaveloop | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_leavetry | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_leavewhen | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_left_shift | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_length | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lineseq | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_link | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_list | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_listen | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_localtime | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lock | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_log | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lslice | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lstat | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lvavref | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lvref | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_lvrefslice | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_mapstart | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_mapwhile | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_match | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_mkdir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_modulo | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_msgctl | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_msgget | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_msgrcv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_msgsnd | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_multideref | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_multiply | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ncmp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ne | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_negate | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_next | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_nextstate | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_not | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_null | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_oct | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_once | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_open | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_open_dir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_or | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_orassign | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ord | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_pack | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_padav | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_padcv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_padhv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_padsv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_pipe_op | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_pop | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_pos | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_postdec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_postinc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_pow | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_predec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_preinc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_print | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_prototype | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_prtf | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_push | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_pushre | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_qr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_quotemeta | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rand | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rcatline | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_read | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_readdir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_readline | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_readlink | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_recv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_redo | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ref | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_refassign | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_refgen | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_regcomp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rename | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_repeat | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_require | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_reset | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_return | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_reverse | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rewinddir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_right_shift | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rindex | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rmdir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_runcv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rv2av | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rv2cv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rv2gv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rv2hv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_rv2sv | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sassign | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_say | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sbit_and | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sbit_or | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sbit_xor | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_scalar | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_schomp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_schop | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_scmp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_scomplement | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_scope | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_seek | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_seekdir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_select | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_semctl | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_semget | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_semop | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_send | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_seq | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_setpgrp | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_setpriority | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_setstate | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sge | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sgrent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sgt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_shift | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_shmctl | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_shmget | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_shmread | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_shmwrite | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_shostent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_shutdown | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sin | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sle | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sleep | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_slt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_smartmatch | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sne | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_snetent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_socket | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sockpair | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sort | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_splice | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_split | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sprintf | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sprotoent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_spwent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sqrt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_srand | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_srefgen | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sselect | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sservent | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ssockopt | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_stat | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_stringify | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_stub | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_study | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_subst | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_substr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_subtract | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_symlink | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_syscall | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sysopen | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sysread | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_sysseek | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_system | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_syswrite | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_tell | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_telldir | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_tie | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_tied | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_time | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_tms | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_trans | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_transr | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_truncate | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_uc | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_ucfirst | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_umask | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_undef | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_unlink | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_unpack | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_unshift | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_unstack | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_untie | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_utime | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_values | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_vec | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_wait | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_waitpid | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_wantarray | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_warn | B::Deparse::
0 | 0 | 0 | 0s | 0s | pp_xor | B::Deparse::
0 | 0 | 0 | 0s | 0s | print_protos | B::Deparse::
0 | 0 | 0 | 0s | 0s | pure_string | B::Deparse::
0 | 0 | 0 | 0s | 0s | range | B::Deparse::
0 | 0 | 0 | 0s | 0s | re_dq | B::Deparse::
0 | 0 | 0 | 0s | 0s | re_dq_disambiguate | B::Deparse::
0 | 0 | 0 | 0s | 0s | re_flags | B::Deparse::
0 | 0 | 0 | 0s | 0s | re_unback | B::Deparse::
0 | 0 | 0 | 0s | 0s | re_uninterp | B::Deparse::
0 | 0 | 0 | 0s | 0s | real_concat | B::Deparse::
0 | 0 | 0 | 0s | 0s | real_negate | B::Deparse::
0 | 0 | 0 | 0s | 0s | regcomp | B::Deparse::
0 | 0 | 0 | 0s | 0s | repeat | B::Deparse::
0 | 0 | 0 | 0s | 0s | retscalar | B::Deparse::
0 | 0 | 0 | 0s | 0s | rv2gv_or_string | B::Deparse::
0 | 0 | 0 | 0s | 0s | rv2x | B::Deparse::
0 | 0 | 0 | 0s | 0s | scopeop | B::Deparse::
0 | 0 | 0 | 0s | 0s | seq_subs | B::Deparse::
0 | 0 | 0 | 0s | 0s | single_delim | B::Deparse::
0 | 0 | 0 | 0s | 0s | slice | B::Deparse::
0 | 0 | 0 | 0s | 0s | split | B::Deparse::
0 | 0 | 0 | 0s | 0s | split_float | B::Deparse::
0 | 0 | 0 | 0s | 0s | stash_subs | B::Deparse::
0 | 0 | 0 | 0s | 0s | stash_variable | B::Deparse::
0 | 0 | 0 | 0s | 0s | stash_variable_name | B::Deparse::
0 | 0 | 0 | 0s | 0s | style_opts | B::Deparse::
0 | 0 | 0 | 0s | 0s | todo | B::Deparse::
0 | 0 | 0 | 0s | 0s | tr_chr | B::Deparse::
0 | 0 | 0 | 0s | 0s | tr_decode_byte | B::Deparse::
0 | 0 | 0 | 0s | 0s | tr_decode_utf8 | B::Deparse::
0 | 0 | 0 | 0s | 0s | unback | B::Deparse::
0 | 0 | 0 | 0s | 0s | uninterp | B::Deparse::
0 | 0 | 0 | 0s | 0s | unop | B::Deparse::
0 | 0 | 0 | 0s | 0s | walk_lineseq | B::Deparse::
0 | 0 | 0 | 0s | 0s | want_list | B::Deparse::
0 | 0 | 0 | 0s | 0s | want_scalar | B::Deparse::
Line | State ments |
Time on line |
Calls | Time in subs |
Code |
---|---|---|---|---|---|
1 | # B::Deparse.pm | ||||
2 | # Copyright (c) 1998-2000, 2002, 2003, 2004, 2005, 2006 Stephen McCamant. | ||||
3 | # All rights reserved. | ||||
4 | # This module is free software; you can redistribute and/or modify | ||||
5 | # it under the same terms as Perl itself. | ||||
6 | |||||
7 | # This is based on the module of the same name by Malcolm Beattie, | ||||
8 | # but essentially none of his code remains. | ||||
9 | |||||
10 | package B::Deparse; | ||||
11 | 2 | 55µs | 2 | 59µs | # spent 34µs (9+25) within B::Deparse::BEGIN@11 which was called:
# once (9µs+25µs) by YAML::XS::BEGIN@57 at line 11 # spent 34µs making 1 call to B::Deparse::BEGIN@11
# spent 25µs making 1 call to Exporter::import |
12 | 1 | 4µs | 1 | 606µs | # spent 613µs (7+606) within B::Deparse::BEGIN@12 which was called:
# once (7µs+606µs) by YAML::XS::BEGIN@57 at line 47 # spent 606µs making 1 call to Exporter::import |
13 | OPf_WANT OPf_WANT_VOID OPf_WANT_SCALAR OPf_WANT_LIST | ||||
14 | OPf_KIDS OPf_REF OPf_STACKED OPf_SPECIAL OPf_MOD OPf_PARENS | ||||
15 | OPpLVAL_INTRO OPpOUR_INTRO OPpENTERSUB_AMPER OPpSLICE OPpCONST_BARE | ||||
16 | OPpTRANS_SQUASH OPpTRANS_DELETE OPpTRANS_COMPLEMENT OPpTARGET_MY | ||||
17 | OPpEXISTS_SUB OPpSORT_NUMERIC OPpSORT_INTEGER OPpREPEAT_DOLIST | ||||
18 | OPpSORT_REVERSE OPpMULTIDEREF_EXISTS OPpMULTIDEREF_DELETE | ||||
19 | SVf_IOK SVf_NOK SVf_ROK SVf_POK SVpad_OUR SVf_FAKE SVs_RMG SVs_SMG | ||||
20 | SVs_PADTMP SVpad_TYPED | ||||
21 | CVf_METHOD CVf_LVALUE | ||||
22 | PMf_KEEP PMf_GLOBAL PMf_CONTINUE PMf_EVAL PMf_ONCE | ||||
23 | PMf_MULTILINE PMf_SINGLELINE PMf_FOLD PMf_EXTENDED PMf_EXTENDED_MORE | ||||
24 | PADNAMEt_OUTER | ||||
25 | MDEREF_reload | ||||
26 | MDEREF_AV_pop_rv2av_aelem | ||||
27 | MDEREF_AV_gvsv_vivify_rv2av_aelem | ||||
28 | MDEREF_AV_padsv_vivify_rv2av_aelem | ||||
29 | MDEREF_AV_vivify_rv2av_aelem | ||||
30 | MDEREF_AV_padav_aelem | ||||
31 | MDEREF_AV_gvav_aelem | ||||
32 | MDEREF_HV_pop_rv2hv_helem | ||||
33 | MDEREF_HV_gvsv_vivify_rv2hv_helem | ||||
34 | MDEREF_HV_padsv_vivify_rv2hv_helem | ||||
35 | MDEREF_HV_vivify_rv2hv_helem | ||||
36 | MDEREF_HV_padhv_helem | ||||
37 | MDEREF_HV_gvhv_helem | ||||
38 | MDEREF_ACTION_MASK | ||||
39 | MDEREF_INDEX_none | ||||
40 | MDEREF_INDEX_const | ||||
41 | MDEREF_INDEX_padsv | ||||
42 | MDEREF_INDEX_gvsv | ||||
43 | MDEREF_INDEX_MASK | ||||
44 | MDEREF_FLAG_last | ||||
45 | MDEREF_MASK | ||||
46 | MDEREF_SHIFT | ||||
47 | 1 | 29µs | 1 | 613µs | ); # spent 613µs making 1 call to B::Deparse::BEGIN@12 |
48 | |||||
49 | 1 | 500ns | $VERSION = '1.35'; | ||
50 | 2 | 14µs | 2 | 8µs | # spent 7µs (5+1) within B::Deparse::BEGIN@50 which was called:
# once (5µs+1µs) by YAML::XS::BEGIN@57 at line 50 # spent 7µs making 1 call to B::Deparse::BEGIN@50
# spent 1µs making 1 call to strict::import |
51 | 2 | 14µs | 2 | 29µs | # spent 17µs (4+13) within B::Deparse::BEGIN@51 which was called:
# once (4µs+13µs) by YAML::XS::BEGIN@57 at line 51 # spent 17µs making 1 call to B::Deparse::BEGIN@51
# spent 13µs making 1 call to vars::import |
52 | 2 | 35µs | 1 | 2µs | # spent 2µs within B::Deparse::BEGIN@52 which was called:
# once (2µs+0s) by YAML::XS::BEGIN@57 at line 52 # spent 2µs making 1 call to B::Deparse::BEGIN@52 |
53 | 1 | 484µs | require feature; | ||
54 | |||||
55 | # spent 5.89ms (83µs+5.80) within B::Deparse::BEGIN@55 which was called:
# once (83µs+5.80ms) by YAML::XS::BEGIN@57 at line 70 | ||||
56 | # List version-specific constants here. | ||||
57 | # Easiest way to keep this code portable between version looks to | ||||
58 | # be to fake up a dummy constant that will never actually be true. | ||||
59 | 1 | 3µs | foreach (qw(OPpSORT_INPLACE OPpSORT_DESCEND OPpITER_REVERSED OPpCONST_NOVER | ||
60 | OPpPAD_STATE PMf_SKIPWHITE RXf_SKIPWHITE | ||||
61 | RXf_PMf_CHARSET RXf_PMf_KEEPCOPY CVf_ANONCONST | ||||
62 | CVf_LOCKED OPpREVERSE_INPLACE OPpSUBSTR_REPL_FIRST | ||||
63 | PMf_NONDESTRUCT OPpCONST_ARYBASE OPpEVAL_BYTES | ||||
64 | OPpLVREF_TYPE OPpLVREF_SV OPpLVREF_AV OPpLVREF_HV | ||||
65 | OPpLVREF_CV OPpLVREF_ELEM SVpad_STATE)) { | ||||
66 | 46 | 18µs | 23 | 5.80ms | eval { import B $_ }; # spent 5.80ms making 23 calls to Exporter::import, avg 252µs/call |
67 | 2 | 40µs | 2 | 23µs | # spent 16µs (9+7) within B::Deparse::BEGIN@67 which was called:
# once (9µs+7µs) by YAML::XS::BEGIN@57 at line 67 # spent 16µs making 1 call to B::Deparse::BEGIN@67
# spent 7µs making 1 call to strict::unimport |
68 | 23 | 49µs | *{$_} = sub () {0} unless *{$_}{CODE}; | ||
69 | } | ||||
70 | 1 | 155µs | 1 | 5.89ms | } # spent 5.89ms making 1 call to B::Deparse::BEGIN@55 |
71 | |||||
72 | # Changes between 0.50 and 0.51: | ||||
73 | # - fixed nulled leave with live enter in sort { } | ||||
74 | # - fixed reference constants (\"str") | ||||
75 | # - handle empty programs gracefully | ||||
76 | # - handle infinite loops (for (;;) {}, while (1) {}) | ||||
77 | # - differentiate between 'for my $x ...' and 'my $x; for $x ...' | ||||
78 | # - various minor cleanups | ||||
79 | # - moved globals into an object | ||||
80 | # - added '-u', like B::C | ||||
81 | # - package declarations using cop_stash | ||||
82 | # - subs, formats and code sorted by cop_seq | ||||
83 | # Changes between 0.51 and 0.52: | ||||
84 | # - added pp_threadsv (special variables under USE_5005THREADS) | ||||
85 | # - added documentation | ||||
86 | # Changes between 0.52 and 0.53: | ||||
87 | # - many changes adding precedence contexts and associativity | ||||
88 | # - added '-p' and '-s' output style options | ||||
89 | # - various other minor fixes | ||||
90 | # Changes between 0.53 and 0.54: | ||||
91 | # - added support for new 'for (1..100)' optimization, | ||||
92 | # thanks to Gisle Aas | ||||
93 | # Changes between 0.54 and 0.55: | ||||
94 | # - added support for new qr// construct | ||||
95 | # - added support for new pp_regcreset OP | ||||
96 | # Changes between 0.55 and 0.56: | ||||
97 | # - tested on base/*.t, cmd/*.t, comp/*.t, io/*.t | ||||
98 | # - fixed $# on non-lexicals broken in last big rewrite | ||||
99 | # - added temporary fix for change in opcode of OP_STRINGIFY | ||||
100 | # - fixed problem in 0.54's for() patch in 'for (@ary)' | ||||
101 | # - fixed precedence in conditional of ?: | ||||
102 | # - tweaked list paren elimination in 'my($x) = @_' | ||||
103 | # - made continue-block detection trickier wrt. null ops | ||||
104 | # - fixed various prototype problems in pp_entersub | ||||
105 | # - added support for sub prototypes that never get GVs | ||||
106 | # - added unquoting for special filehandle first arg in truncate | ||||
107 | # - print doubled rv2gv (a bug) as '*{*GV}' instead of illegal '**GV' | ||||
108 | # - added semicolons at the ends of blocks | ||||
109 | # - added -l '#line' declaration option -- fixes cmd/subval.t 27,28 | ||||
110 | # Changes between 0.56 and 0.561: | ||||
111 | # - fixed multiply-declared my var in pp_truncate (thanks to Sarathy) | ||||
112 | # - used new B.pm symbolic constants (done by Nick Ing-Simmons) | ||||
113 | # Changes between 0.561 and 0.57: | ||||
114 | # - stylistic changes to symbolic constant stuff | ||||
115 | # - handled scope in s///e replacement code | ||||
116 | # - added unquote option for expanding "" into concats, etc. | ||||
117 | # - split method and proto parts of pp_entersub into separate functions | ||||
118 | # - various minor cleanups | ||||
119 | # Changes after 0.57: | ||||
120 | # - added parens in \&foo (patch by Albert Dvornik) | ||||
121 | # Changes between 0.57 and 0.58: | ||||
122 | # - fixed '0' statements that weren't being printed | ||||
123 | # - added methods for use from other programs | ||||
124 | # (based on patches from James Duncan and Hugo van der Sanden) | ||||
125 | # - added -si and -sT to control indenting (also based on a patch from Hugo) | ||||
126 | # - added -sv to print something else instead of '???' | ||||
127 | # - preliminary version of utf8 tr/// handling | ||||
128 | # Changes after 0.58: | ||||
129 | # - uses of $op->ppaddr changed to new $op->name (done by Sarathy) | ||||
130 | # - added support for Hugo's new OP_SETSTATE (like nextstate) | ||||
131 | # Changes between 0.58 and 0.59 | ||||
132 | # - added support for Chip's OP_METHOD_NAMED | ||||
133 | # - added support for Ilya's OPpTARGET_MY optimization | ||||
134 | # - elided arrows before '()' subscripts when possible | ||||
135 | # Changes between 0.59 and 0.60 | ||||
136 | # - support for method attributes was added | ||||
137 | # - some warnings fixed | ||||
138 | # - separate recognition of constant subs | ||||
139 | # - rewrote continue block handling, now recognizing for loops | ||||
140 | # - added more control of expanding control structures | ||||
141 | # Changes between 0.60 and 0.61 (mostly by Robin Houston) | ||||
142 | # - many bug-fixes | ||||
143 | # - support for pragmas and 'use' | ||||
144 | # - support for the little-used $[ variable | ||||
145 | # - support for __DATA__ sections | ||||
146 | # - UTF8 support | ||||
147 | # - BEGIN, CHECK, INIT and END blocks | ||||
148 | # - scoping of subroutine declarations fixed | ||||
149 | # - compile-time output from the input program can be suppressed, so that the | ||||
150 | # output is just the deparsed code. (a change to O.pm in fact) | ||||
151 | # - our() declarations | ||||
152 | # - *all* the known bugs are now listed in the BUGS section | ||||
153 | # - comprehensive test mechanism (TEST -deparse) | ||||
154 | # Changes between 0.62 and 0.63 (mostly by Rafael Garcia-Suarez) | ||||
155 | # - bug-fixes | ||||
156 | # - new switch -P | ||||
157 | # - support for command-line switches (-l, -0, etc.) | ||||
158 | # Changes between 0.63 and 0.64 | ||||
159 | # - support for //, CHECK blocks, and assertions | ||||
160 | # - improved handling of foreach loops and lexicals | ||||
161 | # - option to use Data::Dumper for constants | ||||
162 | # - more bug fixes | ||||
163 | # - discovered lots more bugs not yet fixed | ||||
164 | # | ||||
165 | # ... | ||||
166 | # | ||||
167 | # Changes between 0.72 and 0.73 | ||||
168 | # - support new switch constructs | ||||
169 | |||||
170 | # Todo: | ||||
171 | # (See also BUGS section at the end of this file) | ||||
172 | # | ||||
173 | # - finish tr/// changes | ||||
174 | # - add option for even more parens (generalize \&foo change) | ||||
175 | # - left/right context | ||||
176 | # - copy comments (look at real text with $^P?) | ||||
177 | # - avoid semis in one-statement blocks | ||||
178 | # - associativity of &&=, ||=, ?: | ||||
179 | # - ',' => '=>' (auto-unquote?) | ||||
180 | # - break long lines ("\r" as discretionary break?) | ||||
181 | # - configurable syntax highlighting: ANSI color, HTML, TeX, etc. | ||||
182 | # - more style options: brace style, hex vs. octal, quotes, ... | ||||
183 | # - print big ints as hex/octal instead of decimal (heuristic?) | ||||
184 | # - handle 'my $x if 0'? | ||||
185 | # - version using op_next instead of op_first/sibling? | ||||
186 | # - avoid string copies (pass arrays, one big join?) | ||||
187 | # - here-docs? | ||||
188 | |||||
189 | # Current test.deparse failures | ||||
190 | # comp/hints 6 - location of BEGIN blocks wrt. block openings | ||||
191 | # run/switchI 1 - missing -I switches entirely | ||||
192 | # perl -Ifoo -e 'print @INC' | ||||
193 | # op/caller 2 - warning mask propagates backwards before warnings::register | ||||
194 | # 'use warnings; BEGIN {${^WARNING_BITS} eq "U"x12;} use warnings::register' | ||||
195 | # op/getpid 2 - can't assign to shared my() declaration (threads only) | ||||
196 | # 'my $x : shared = 5' | ||||
197 | # op/override 7 - parens on overridden require change v-string interpretation | ||||
198 | # 'BEGIN{*CORE::GLOBAL::require=sub {}} require v5.6' | ||||
199 | # c.f. 'BEGIN { *f = sub {0} }; f 2' | ||||
200 | # op/pat 774 - losing Unicode-ness of Latin1-only strings | ||||
201 | # 'use charnames ":short"; $x="\N{latin:a with acute}"' | ||||
202 | # op/recurse 12 - missing parens on recursive call makes it look like method | ||||
203 | # 'sub f { f($x) }' | ||||
204 | # op/subst 90 - inconsistent handling of utf8 under "use utf8" | ||||
205 | # op/taint 29 - "use re 'taint'" deparsed in the wrong place wrt. block open | ||||
206 | # op/tiehandle compile - "use strict" deparsed in the wrong place | ||||
207 | # uni/tr_ several | ||||
208 | # ext/B/t/xref 11 - line numbers when we add newlines to one-line subs | ||||
209 | # ext/Data/Dumper/t/dumper compile | ||||
210 | # ext/DB_file/several | ||||
211 | # ext/Encode/several | ||||
212 | # ext/Ernno/Errno warnings | ||||
213 | # ext/IO/lib/IO/t/io_sel 23 | ||||
214 | # ext/PerlIO/t/encoding compile | ||||
215 | # ext/POSIX/t/posix 6 | ||||
216 | # ext/Socket/Socket 8 | ||||
217 | # ext/Storable/t/croak compile | ||||
218 | # lib/Attribute/Handlers/t/multi compile | ||||
219 | # lib/bignum/ several | ||||
220 | # lib/charnames 35 | ||||
221 | # lib/constant 32 | ||||
222 | # lib/English 40 | ||||
223 | # lib/ExtUtils/t/bytes 4 | ||||
224 | # lib/File/DosGlob compile | ||||
225 | # lib/Filter/Simple/t/data 1 | ||||
226 | # lib/Math/BigInt/t/constant 1 | ||||
227 | # lib/Net/t/config Deparse-warning | ||||
228 | # lib/overload compile | ||||
229 | # lib/Switch/ several | ||||
230 | # lib/Symbol 4 | ||||
231 | # lib/Test/Simple several | ||||
232 | # lib/Term/Complete | ||||
233 | # lib/Tie/File/t/29_downcopy 5 | ||||
234 | # lib/vars 22 | ||||
235 | |||||
236 | # Object fields: | ||||
237 | # | ||||
238 | # in_coderef2text: | ||||
239 | # True when deparsing via $deparse->coderef2text; false when deparsing the | ||||
240 | # main program. | ||||
241 | # | ||||
242 | # avoid_local: | ||||
243 | # (local($a), local($b)) and local($a, $b) have the same internal | ||||
244 | # representation but the short form looks better. We notice we can | ||||
245 | # use a large-scale local when checking the list, but need to prevent | ||||
246 | # individual locals too. This hash holds the addresses of OPs that | ||||
247 | # have already had their local-ness accounted for. The same thing | ||||
248 | # is done with my(). | ||||
249 | # | ||||
250 | # curcv: | ||||
251 | # CV for current sub (or main program) being deparsed | ||||
252 | # | ||||
253 | # curcvlex: | ||||
254 | # Cached hash of lexical variables for curcv: keys are | ||||
255 | # names prefixed with "m" or "o" (representing my/our), and | ||||
256 | # each value is an array with two elements indicating the cop_seq | ||||
257 | # of scopes in which a var of that name is valid and a third ele- | ||||
258 | # ment referencing the pad name. | ||||
259 | # | ||||
260 | # curcop: | ||||
261 | # COP for statement being deparsed | ||||
262 | # | ||||
263 | # curstash: | ||||
264 | # name of the current package for deparsed code | ||||
265 | # | ||||
266 | # subs_todo: | ||||
267 | # array of [cop_seq, CV, is_format?, name] for subs and formats we still | ||||
268 | # want to deparse. The fourth element is a pad name thingy for lexical | ||||
269 | # subs or a string for special blocks. For other subs, it is undef. For | ||||
270 | # lexical subs, CV may be undef, indicating a stub declaration. | ||||
271 | # | ||||
272 | # protos_todo: | ||||
273 | # as above, but [name, prototype] for subs that never got a GV | ||||
274 | # | ||||
275 | # subs_done, forms_done: | ||||
276 | # keys are addresses of GVs for subs and formats we've already | ||||
277 | # deparsed (or at least put into subs_todo) | ||||
278 | # | ||||
279 | # subs_declared | ||||
280 | # keys are names of subs for which we've printed declarations. | ||||
281 | # That means we can omit parentheses from the arguments. It also means we | ||||
282 | # need to put CORE:: on core functions of the same name. | ||||
283 | # | ||||
284 | # in_subst_repl | ||||
285 | # True when deparsing the replacement part of a substitution. | ||||
286 | # | ||||
287 | # in_refgen | ||||
288 | # True when deparsing the argument to \. | ||||
289 | # | ||||
290 | # parens: -p | ||||
291 | # linenums: -l | ||||
292 | # unquote: -q | ||||
293 | # cuddle: ' ' or '\n', depending on -sC | ||||
294 | # indent_size: -si | ||||
295 | # use_tabs: -sT | ||||
296 | # ex_const: -sv | ||||
297 | |||||
298 | # A little explanation of how precedence contexts and associativity | ||||
299 | # work: | ||||
300 | # | ||||
301 | # deparse() calls each per-op subroutine with an argument $cx (short | ||||
302 | # for context, but not the same as the cx* in the perl core), which is | ||||
303 | # a number describing the op's parents in terms of precedence, whether | ||||
304 | # they're inside an expression or at statement level, etc. (see | ||||
305 | # chart below). When ops with children call deparse on them, they pass | ||||
306 | # along their precedence. Fractional values are used to implement | ||||
307 | # associativity ('($x + $y) + $z' => '$x + $y + $y') and related | ||||
308 | # parentheses hacks. The major disadvantage of this scheme is that | ||||
309 | # it doesn't know about right sides and left sides, so say if you | ||||
310 | # assign a listop to a variable, it can't tell it's allowed to leave | ||||
311 | # the parens off the listop. | ||||
312 | |||||
313 | # Precedences: | ||||
314 | # 26 [TODO] inside interpolation context ("") | ||||
315 | # 25 left terms and list operators (leftward) | ||||
316 | # 24 left -> | ||||
317 | # 23 nonassoc ++ -- | ||||
318 | # 22 right ** | ||||
319 | # 21 right ! ~ \ and unary + and - | ||||
320 | # 20 left =~ !~ | ||||
321 | # 19 left * / % x | ||||
322 | # 18 left + - . | ||||
323 | # 17 left << >> | ||||
324 | # 16 nonassoc named unary operators | ||||
325 | # 15 nonassoc < > <= >= lt gt le ge | ||||
326 | # 14 nonassoc == != <=> eq ne cmp | ||||
327 | # 13 left & | ||||
328 | # 12 left | ^ | ||||
329 | # 11 left && | ||||
330 | # 10 left || | ||||
331 | # 9 nonassoc .. ... | ||||
332 | # 8 right ?: | ||||
333 | # 7 right = += -= *= etc. | ||||
334 | # 6 left , => | ||||
335 | # 5 nonassoc list operators (rightward) | ||||
336 | # 4 right not | ||||
337 | # 3 left and | ||||
338 | # 2 left or xor | ||||
339 | # 1 statement modifiers | ||||
340 | # 0.5 statements, but still print scopes as do { ... } | ||||
341 | # 0 statement level | ||||
342 | # -1 format body | ||||
343 | |||||
344 | # Nonprinting characters with special meaning: | ||||
345 | # \cS - steal parens (see maybe_parens_unop) | ||||
346 | # \n - newline and indent | ||||
347 | # \t - increase indent | ||||
348 | # \b - decrease indent ('outdent') | ||||
349 | # \f - flush left (no indent) | ||||
350 | # \cK - kill following semicolon, if any | ||||
351 | |||||
352 | # Semicolon handling: | ||||
353 | # - Individual statements are not deparsed with trailing semicolons. | ||||
354 | # (If necessary, \cK is tacked on to the end.) | ||||
355 | # - Whatever code joins statements together or emits them (lineseq, | ||||
356 | # scopeop, deparse_root) is responsible for adding semicolons where | ||||
357 | # necessary. | ||||
358 | # - use statements are deparsed with trailing semicolons because they are | ||||
359 | # immediately concatenated with the following statement. | ||||
360 | # - indent() removes semicolons wherever it sees \cK. | ||||
361 | |||||
362 | |||||
363 | 1 | 3µs | # spent 204µs (187+17) within B::Deparse::BEGIN@363 which was called:
# once (187µs+17µs) by YAML::XS::BEGIN@57 at line 366 | ||
364 | nextstate dbstate rv2av rv2hv helem custom ]) { | ||||
365 | 14 | 200µs | 14 | 17µs | eval "sub OP_\U$_ () { " . opnumber($_) . "}" # spent 17µs making 14 calls to B::opnumber, avg 1µs/call |
366 | 1 | 1.03ms | 1 | 204µs | }} # spent 204µs making 1 call to B::Deparse::BEGIN@363 |
367 | |||||
368 | # _pessimise_walk(): recursively walk the optree of a sub, | ||||
369 | # possibly undoing optimisations along the way. | ||||
370 | |||||
371 | sub _pessimise_walk { | ||||
372 | my ($self, $startop) = @_; | ||||
373 | |||||
374 | return unless $$startop; | ||||
375 | my ($op, $prevop); | ||||
376 | for ($op = $startop; $$op; $prevop = $op, $op = $op->sibling) { | ||||
377 | my $ppname = $op->name; | ||||
378 | |||||
379 | # pessimisations start here | ||||
380 | |||||
381 | if ($ppname eq "padrange") { | ||||
382 | # remove PADRANGE: | ||||
383 | # the original optimisation either (1) changed this: | ||||
384 | # pushmark -> (various pad and list and null ops) -> the_rest | ||||
385 | # or (2), for the = @_ case, changed this: | ||||
386 | # pushmark -> gv[_] -> rv2av -> (pad stuff) -> the_rest | ||||
387 | # into this: | ||||
388 | # padrange ----------------------------------------> the_rest | ||||
389 | # so we just need to convert the padrange back into a | ||||
390 | # pushmark, and in case (1), set its op_next to op_sibling, | ||||
391 | # which is the head of the original chain of optimised-away | ||||
392 | # pad ops, or for (2), set it to sibling->first, which is | ||||
393 | # the original gv[_]. | ||||
394 | |||||
395 | $B::overlay->{$$op} = { | ||||
396 | type => OP_PUSHMARK, | ||||
397 | name => 'pushmark', | ||||
398 | private => ($op->private & OPpLVAL_INTRO), | ||||
399 | }; | ||||
400 | } | ||||
401 | |||||
402 | # pessimisations end here | ||||
403 | |||||
404 | if (class($op) eq 'PMOP' | ||||
405 | && ref($op->pmreplroot) | ||||
406 | && ${$op->pmreplroot} | ||||
407 | && $op->pmreplroot->isa( 'B::OP' )) | ||||
408 | { | ||||
409 | $self-> _pessimise_walk($op->pmreplroot); | ||||
410 | } | ||||
411 | |||||
412 | if ($op->flags & OPf_KIDS) { | ||||
413 | $self-> _pessimise_walk($op->first); | ||||
414 | } | ||||
415 | |||||
416 | } | ||||
417 | } | ||||
418 | |||||
419 | |||||
420 | # _pessimise_walk_exe(): recursively walk the op_next chain of a sub, | ||||
421 | # possibly undoing optimisations along the way. | ||||
422 | |||||
423 | sub _pessimise_walk_exe { | ||||
424 | my ($self, $startop, $visited) = @_; | ||||
425 | |||||
426 | return unless $$startop; | ||||
427 | return if $visited->{$$startop}; | ||||
428 | my ($op, $prevop); | ||||
429 | for ($op = $startop; $$op; $prevop = $op, $op = $op->next) { | ||||
430 | last if $visited->{$$op}; | ||||
431 | $visited->{$$op} = 1; | ||||
432 | my $ppname = $op->name; | ||||
433 | if ($ppname =~ | ||||
434 | /^((and|d?or)(assign)?|(map|grep)while|range|cond_expr|once)$/ | ||||
435 | # entertry is also a logop, but its op_other invariably points | ||||
436 | # into the same chain as the main execution path, so we skip it | ||||
437 | ) { | ||||
438 | $self->_pessimise_walk_exe($op->other, $visited); | ||||
439 | } | ||||
440 | elsif ($ppname eq "subst") { | ||||
441 | $self->_pessimise_walk_exe($op->pmreplstart, $visited); | ||||
442 | } | ||||
443 | elsif ($ppname =~ /^(enter(loop|iter))$/) { | ||||
444 | # redoop and nextop will already be covered by the main block | ||||
445 | # of the loop | ||||
446 | $self->_pessimise_walk_exe($op->lastop, $visited); | ||||
447 | } | ||||
448 | |||||
449 | # pessimisations start here | ||||
450 | } | ||||
451 | } | ||||
452 | |||||
453 | # Go through an optree and "remove" some optimisations by using an | ||||
454 | # overlay to selectively modify or un-null some ops. Deparsing in the | ||||
455 | # absence of those optimisations is then easier. | ||||
456 | # | ||||
457 | # Note that older optimisations are not removed, as Deparse was already | ||||
458 | # written to recognise them before the pessimise/overlay system was added. | ||||
459 | |||||
460 | sub pessimise { | ||||
461 | my ($self, $root, $start) = @_; | ||||
462 | |||||
463 | # walk tree in root-to-branch order | ||||
464 | $self->_pessimise_walk($root); | ||||
465 | |||||
466 | my %visited; | ||||
467 | # walk tree in execution order | ||||
468 | $self->_pessimise_walk_exe($start, \%visited); | ||||
469 | } | ||||
470 | |||||
471 | |||||
472 | sub null { | ||||
473 | my $op = shift; | ||||
474 | return class($op) eq "NULL"; | ||||
475 | } | ||||
476 | |||||
477 | sub todo { | ||||
478 | my $self = shift; | ||||
479 | my($cv, $is_form, $name) = @_; | ||||
480 | my $cvfile = $cv->FILE//''; | ||||
481 | return unless ($cvfile eq $0 || exists $self->{files}{$cvfile}); | ||||
482 | my $seq; | ||||
483 | if ($cv->OUTSIDE_SEQ) { | ||||
484 | $seq = $cv->OUTSIDE_SEQ; | ||||
485 | } elsif (!null($cv->START) and is_state($cv->START)) { | ||||
486 | $seq = $cv->START->cop_seq; | ||||
487 | } else { | ||||
488 | $seq = 0; | ||||
489 | } | ||||
490 | push @{$self->{'subs_todo'}}, [$seq, $cv, $is_form, $name]; | ||||
491 | } | ||||
492 | |||||
493 | sub next_todo { | ||||
494 | my $self = shift; | ||||
495 | my $ent = shift @{$self->{'subs_todo'}}; | ||||
496 | my $cv = $ent->[1]; | ||||
497 | if (ref $ent->[3]) { # lexical sub | ||||
498 | my @text; | ||||
499 | |||||
500 | # At this point, we may not yet have deparsed the hints that allow | ||||
501 | # lexical subroutines to be recognized. So adjust the current | ||||
502 | # hints and deparse them. | ||||
503 | # When lex subs cease being experimental, we should be able to | ||||
504 | # remove this code. | ||||
505 | { | ||||
506 | local $^H = $self->{'hints'}; | ||||
507 | local %^H = %{ $self->{'hinthash'} || {} }; | ||||
508 | local ${^WARNING_BITS} = $self->{'warnings'}; | ||||
509 | feature->import("lexical_subs"); | ||||
510 | warnings->unimport("experimental::lexical_subs"); | ||||
511 | # Here we depend on the fact that individual features | ||||
512 | # will always set the feature bundle to ‘custom’ | ||||
513 | # (== $feature::hint_mask). If we had another specific bundle | ||||
514 | # enabled previously, normalise it. | ||||
515 | if (($self->{'hints'} & $feature::hint_mask) | ||||
516 | != $feature::hint_mask) | ||||
517 | { | ||||
518 | if ($self->{'hinthash'}) { | ||||
519 | delete $self->{'hinthash'}{$_} | ||||
520 | for grep /^feature_/, keys %{$self->{'hinthash'}}; | ||||
521 | } | ||||
522 | else { $self->{'hinthash'} = {} } | ||||
523 | $self->{'hinthash'} | ||||
524 | = _features_from_bundle(@$self{'hints','hinthash'}); | ||||
525 | } | ||||
526 | push @text, $self->declare_hinthash($self->{'hinthash'}, \%^H, | ||||
527 | $self->{indent_size}, $^H); | ||||
528 | push @text, $self->declare_warnings($self->{'warnings'}, | ||||
529 | ${^WARNING_BITS}) | ||||
530 | unless ($self->{'warnings'} // 'u') | ||||
531 | eq (${^WARNING_BITS } // 'u'); | ||||
532 | $self->{'warnings'} = ${^WARNING_BITS}; | ||||
533 | $self->{'hints'} = $^H; | ||||
534 | $self->{'hinthash'} = {%^H}; | ||||
535 | } | ||||
536 | |||||
537 | # Now emit the sub itself. | ||||
538 | my $padname = $ent->[3]; | ||||
539 | my $flags = $padname->FLAGS; | ||||
540 | push @text, | ||||
541 | !$cv || $ent->[0] <= $padname->COP_SEQ_RANGE_LOW | ||||
542 | ? $self->keyword($flags & SVpad_OUR | ||||
543 | ? "our" | ||||
544 | : $flags & SVpad_STATE | ||||
545 | ? "state" | ||||
546 | : "my") . " " | ||||
547 | : ""; | ||||
548 | # XXX We would do $self->keyword("sub"), but ‘my CORE::sub’ | ||||
549 | # doesn’t work and ‘my sub’ ignores a &sub in scope. I.e., | ||||
550 | # we have a core bug here. | ||||
551 | push @text, "sub " . substr $padname->PVX, 1; | ||||
552 | if ($cv) { | ||||
553 | # my sub foo { } | ||||
554 | push @text, " " . $self->deparse_sub($cv); | ||||
555 | $text[-1] =~ s/ ;$/;/; | ||||
556 | } | ||||
557 | else { | ||||
558 | # my sub foo; | ||||
559 | push @text, ";\n"; | ||||
560 | } | ||||
561 | return join "", @text; | ||||
562 | } | ||||
563 | my $gv = $cv->GV; | ||||
564 | my $name = $ent->[3] // $self->gv_name($gv); | ||||
565 | if ($ent->[2]) { | ||||
566 | return $self->keyword("format") . " $name =\n" | ||||
567 | . $self->deparse_format($ent->[1]). "\n"; | ||||
568 | } else { | ||||
569 | my $use_dec; | ||||
570 | if ($name eq "BEGIN") { | ||||
571 | $use_dec = $self->begin_is_use($cv); | ||||
572 | if (defined ($use_dec) and $self->{'expand'} < 5) { | ||||
573 | return () if 0 == length($use_dec); | ||||
574 | $use_dec =~ s/^(use|no)\b/$self->keyword($1)/e; | ||||
575 | } | ||||
576 | } | ||||
577 | my $l = ''; | ||||
578 | if ($self->{'linenums'}) { | ||||
579 | my $line = $gv->LINE; | ||||
580 | my $file = $gv->FILE; | ||||
581 | $l = "\n\f#line $line \"$file\"\n"; | ||||
582 | } | ||||
583 | my $p = ''; | ||||
584 | my $stash; | ||||
585 | if (class($cv->STASH) ne "SPECIAL") { | ||||
586 | $stash = $cv->STASH->NAME; | ||||
587 | if ($stash ne $self->{'curstash'}) { | ||||
588 | $p = $self->keyword("package") . " $stash;\n"; | ||||
589 | $name = "$self->{'curstash'}::$name" unless $name =~ /::/; | ||||
590 | $self->{'curstash'} = $stash; | ||||
591 | } | ||||
592 | } | ||||
593 | if ($use_dec) { | ||||
594 | return "$p$l$use_dec"; | ||||
595 | } | ||||
596 | if ( $name !~ /::/ and $self->lex_in_scope("&$name") | ||||
597 | || $self->lex_in_scope("&$name", 1) ) | ||||
598 | { | ||||
599 | $name = "$self->{'curstash'}::$name"; | ||||
600 | } elsif (defined $stash) { | ||||
601 | $name =~ s/^\Q$stash\E::(?!\z|.*::)//; | ||||
602 | } | ||||
603 | my $ret = "${p}${l}" . $self->keyword("sub") . " $name " | ||||
604 | . $self->deparse_sub($cv); | ||||
605 | $self->{'subs_declared'}{$name} = 1; | ||||
606 | return $ret; | ||||
607 | } | ||||
608 | } | ||||
609 | |||||
610 | # Return a "use" declaration for this BEGIN block, if appropriate | ||||
611 | sub begin_is_use { | ||||
612 | my ($self, $cv) = @_; | ||||
613 | my $root = $cv->ROOT; | ||||
614 | local @$self{qw'curcv curcvlex'} = ($cv); | ||||
615 | local $B::overlay = {}; | ||||
616 | $self->pessimise($root, $cv->START); | ||||
617 | #require B::Debug; | ||||
618 | #B::walkoptree($cv->ROOT, "debug"); | ||||
619 | my $lineseq = $root->first; | ||||
620 | return if $lineseq->name ne "lineseq"; | ||||
621 | |||||
622 | my $req_op = $lineseq->first->sibling; | ||||
623 | return if $req_op->name ne "require"; | ||||
624 | |||||
625 | my $module; | ||||
626 | if ($req_op->first->private & OPpCONST_BARE) { | ||||
627 | # Actually it should always be a bareword | ||||
628 | $module = $self->const_sv($req_op->first)->PV; | ||||
629 | $module =~ s[/][::]g; | ||||
630 | $module =~ s/.pm$//; | ||||
631 | } | ||||
632 | else { | ||||
633 | $module = $self->const($self->const_sv($req_op->first), 6); | ||||
634 | } | ||||
635 | |||||
636 | my $version; | ||||
637 | my $version_op = $req_op->sibling; | ||||
638 | return if class($version_op) eq "NULL"; | ||||
639 | if ($version_op->name eq "lineseq") { | ||||
640 | # We have a version parameter; skip nextstate & pushmark | ||||
641 | my $constop = $version_op->first->next->next; | ||||
642 | |||||
643 | return unless $self->const_sv($constop)->PV eq $module; | ||||
644 | $constop = $constop->sibling; | ||||
645 | $version = $self->const_sv($constop); | ||||
646 | if (class($version) eq "IV") { | ||||
647 | $version = $version->int_value; | ||||
648 | } elsif (class($version) eq "NV") { | ||||
649 | $version = $version->NV; | ||||
650 | } elsif (class($version) ne "PVMG") { | ||||
651 | # Includes PVIV and PVNV | ||||
652 | $version = $version->PV; | ||||
653 | } else { | ||||
654 | # version specified as a v-string | ||||
655 | $version = 'v'.join '.', map ord, split //, $version->PV; | ||||
656 | } | ||||
657 | $constop = $constop->sibling; | ||||
658 | return if $constop->name ne "method_named"; | ||||
659 | return if $self->meth_sv($constop)->PV ne "VERSION"; | ||||
660 | } | ||||
661 | |||||
662 | $lineseq = $version_op->sibling; | ||||
663 | return if $lineseq->name ne "lineseq"; | ||||
664 | my $entersub = $lineseq->first->sibling; | ||||
665 | if ($entersub->name eq "stub") { | ||||
666 | return "use $module $version ();\n" if defined $version; | ||||
667 | return "use $module ();\n"; | ||||
668 | } | ||||
669 | return if $entersub->name ne "entersub"; | ||||
670 | |||||
671 | # See if there are import arguments | ||||
672 | my $args = ''; | ||||
673 | |||||
674 | my $svop = $entersub->first->sibling; # Skip over pushmark | ||||
675 | return unless $self->const_sv($svop)->PV eq $module; | ||||
676 | |||||
677 | # Pull out the arguments | ||||
678 | for ($svop=$svop->sibling; index($svop->name, "method_") != 0; | ||||
679 | $svop = $svop->sibling) { | ||||
680 | $args .= ", " if length($args); | ||||
681 | $args .= $self->deparse($svop, 6); | ||||
682 | } | ||||
683 | |||||
684 | my $use = 'use'; | ||||
685 | my $method_named = $svop; | ||||
686 | return if $method_named->name ne "method_named"; | ||||
687 | my $method_name = $self->meth_sv($method_named)->PV; | ||||
688 | |||||
689 | if ($method_name eq "unimport") { | ||||
690 | $use = 'no'; | ||||
691 | } | ||||
692 | |||||
693 | # Certain pragmas are dealt with using hint bits, | ||||
694 | # so we ignore them here | ||||
695 | if ($module eq 'strict' || $module eq 'integer' | ||||
696 | || $module eq 'bytes' || $module eq 'warnings' | ||||
697 | || $module eq 'feature') { | ||||
698 | return ""; | ||||
699 | } | ||||
700 | |||||
701 | if (defined $version && length $args) { | ||||
702 | return "$use $module $version ($args);\n"; | ||||
703 | } elsif (defined $version) { | ||||
704 | return "$use $module $version;\n"; | ||||
705 | } elsif (length $args) { | ||||
706 | return "$use $module ($args);\n"; | ||||
707 | } else { | ||||
708 | return "$use $module;\n"; | ||||
709 | } | ||||
710 | } | ||||
711 | |||||
712 | sub stash_subs { | ||||
713 | my ($self, $pack, $seen) = @_; | ||||
714 | my (@ret, $stash); | ||||
715 | if (!defined $pack) { | ||||
716 | $pack = ''; | ||||
717 | $stash = \%::; | ||||
718 | } | ||||
719 | else { | ||||
720 | $pack =~ s/(::)?$/::/; | ||||
721 | 2 | 508µs | 2 | 26µs | # spent 16µs (6+10) within B::Deparse::BEGIN@721 which was called:
# once (6µs+10µs) by YAML::XS::BEGIN@57 at line 721 # spent 16µs making 1 call to B::Deparse::BEGIN@721
# spent 10µs making 1 call to strict::unimport |
722 | $stash = \%{"main::$pack"}; | ||||
723 | } | ||||
724 | return | ||||
725 | if ($seen ||= {})->{ | ||||
726 | $INC{"overload.pm"} ? overload::StrVal($stash) : $stash | ||||
727 | }++; | ||||
728 | my %stash = svref_2object($stash)->ARRAY; | ||||
729 | while (my ($key, $val) = each %stash) { | ||||
730 | my $flags = $val->FLAGS; | ||||
731 | if ($flags & SVf_ROK) { | ||||
732 | # A reference. Dump this if it is a reference to a CV. If it | ||||
733 | # is a constant acting as a proxy for a full subroutine, then | ||||
734 | # we may or may not have to dump it. If some form of perl- | ||||
735 | # space visible code must have created it, be it a use | ||||
736 | # statement, or some direct symbol-table manipulation code that | ||||
737 | # we will deparse, then we don’t want to dump it. If it is the | ||||
738 | # result of a declaration like sub f () { 42 } then we *do* | ||||
739 | # want to dump it. The only way to distinguish these seems | ||||
740 | # to be the SVs_PADTMP flag on the constant, which is admit- | ||||
741 | # tedly a hack. | ||||
742 | my $class = class(my $referent = $val->RV); | ||||
743 | if ($class eq "CV") { | ||||
744 | $self->todo($referent, 0); | ||||
745 | } elsif ( | ||||
746 | $class !~ /^(AV|HV|CV|FM|IO|SPECIAL)\z/ | ||||
747 | # A more robust way to write that would be this, but B does | ||||
748 | # not provide the SVt_ constants: | ||||
749 | # ($referent->FLAGS & B::SVTYPEMASK) < B::SVt_PVAV | ||||
750 | and $referent->FLAGS & SVs_PADTMP | ||||
751 | ) { | ||||
752 | push @{$self->{'protos_todo'}}, [$pack . $key, $val]; | ||||
753 | } | ||||
754 | } elsif ($flags & (SVf_POK|SVf_IOK)) { | ||||
755 | # Just a prototype. As an ugly but fairly effective way | ||||
756 | # to find out if it belongs here is to see if the AUTOLOAD | ||||
757 | # (if any) for the stash was defined in one of our files. | ||||
758 | my $A = $stash{"AUTOLOAD"}; | ||||
759 | if (defined ($A) && class($A) eq "GV" && defined($A->CV) | ||||
760 | && class($A->CV) eq "CV") { | ||||
761 | my $AF = $A->FILE; | ||||
762 | next unless $AF eq $0 || exists $self->{'files'}{$AF}; | ||||
763 | } | ||||
764 | push @{$self->{'protos_todo'}}, | ||||
765 | [$pack . $key, $flags & SVf_POK ? $val->PV: undef]; | ||||
766 | } elsif (class($val) eq "GV") { | ||||
767 | if (class(my $cv = $val->CV) ne "SPECIAL") { | ||||
768 | next if $self->{'subs_done'}{$$val}++; | ||||
769 | next if $$val != ${$cv->GV}; # Ignore imposters | ||||
770 | $self->todo($cv, 0); | ||||
771 | } | ||||
772 | if (class(my $cv = $val->FORM) ne "SPECIAL") { | ||||
773 | next if $self->{'forms_done'}{$$val}++; | ||||
774 | next if $$val != ${$cv->GV}; # Ignore imposters | ||||
775 | $self->todo($cv, 1); | ||||
776 | } | ||||
777 | if (class($val->HV) ne "SPECIAL" && $key =~ /::$/) { | ||||
778 | $self->stash_subs($pack . $key, $seen); | ||||
779 | } | ||||
780 | } | ||||
781 | } | ||||
782 | } | ||||
783 | |||||
784 | sub print_protos { | ||||
785 | my $self = shift; | ||||
786 | my $ar; | ||||
787 | my @ret; | ||||
788 | foreach $ar (@{$self->{'protos_todo'}}) { | ||||
789 | my $body = defined $ar->[1] | ||||
790 | ? ref $ar->[1] | ||||
791 | ? " () {\n " . $self->const($ar->[1]->RV,0) . ";\n}" | ||||
792 | : " (". $ar->[1] . ");" | ||||
793 | : ";"; | ||||
794 | push @ret, "sub " . $ar->[0] . "$body\n"; | ||||
795 | } | ||||
796 | delete $self->{'protos_todo'}; | ||||
797 | return @ret; | ||||
798 | } | ||||
799 | |||||
800 | sub style_opts { | ||||
801 | my $self = shift; | ||||
802 | my $opts = shift; | ||||
803 | my $opt; | ||||
804 | while (length($opt = substr($opts, 0, 1))) { | ||||
805 | if ($opt eq "C") { | ||||
806 | $self->{'cuddle'} = " "; | ||||
807 | $opts = substr($opts, 1); | ||||
808 | } elsif ($opt eq "i") { | ||||
809 | $opts =~ s/^i(\d+)//; | ||||
810 | $self->{'indent_size'} = $1; | ||||
811 | } elsif ($opt eq "T") { | ||||
812 | $self->{'use_tabs'} = 1; | ||||
813 | $opts = substr($opts, 1); | ||||
814 | } elsif ($opt eq "v") { | ||||
815 | $opts =~ s/^v([^.]*)(.|$)//; | ||||
816 | $self->{'ex_const'} = $1; | ||||
817 | } | ||||
818 | } | ||||
819 | } | ||||
820 | |||||
821 | sub new { | ||||
822 | my $class = shift; | ||||
823 | my $self = bless {}, $class; | ||||
824 | $self->{'cuddle'} = "\n"; | ||||
825 | $self->{'curcop'} = undef; | ||||
826 | $self->{'curstash'} = "main"; | ||||
827 | $self->{'ex_const'} = "'???'"; | ||||
828 | $self->{'expand'} = 0; | ||||
829 | $self->{'files'} = {}; | ||||
830 | $self->{'indent_size'} = 4; | ||||
831 | $self->{'linenums'} = 0; | ||||
832 | $self->{'parens'} = 0; | ||||
833 | $self->{'subs_todo'} = []; | ||||
834 | $self->{'unquote'} = 0; | ||||
835 | $self->{'use_dumper'} = 0; | ||||
836 | $self->{'use_tabs'} = 0; | ||||
837 | |||||
838 | $self->{'ambient_arybase'} = 0; | ||||
839 | $self->{'ambient_warnings'} = undef; # Assume no lexical warnings | ||||
840 | $self->{'ambient_hints'} = 0; | ||||
841 | $self->{'ambient_hinthash'} = undef; | ||||
842 | $self->init(); | ||||
843 | |||||
844 | while (my $arg = shift @_) { | ||||
845 | if ($arg eq "-d") { | ||||
846 | $self->{'use_dumper'} = 1; | ||||
847 | require Data::Dumper; | ||||
848 | } elsif ($arg =~ /^-f(.*)/) { | ||||
849 | $self->{'files'}{$1} = 1; | ||||
850 | } elsif ($arg eq "-l") { | ||||
851 | $self->{'linenums'} = 1; | ||||
852 | } elsif ($arg eq "-p") { | ||||
853 | $self->{'parens'} = 1; | ||||
854 | } elsif ($arg eq "-P") { | ||||
855 | $self->{'noproto'} = 1; | ||||
856 | } elsif ($arg eq "-q") { | ||||
857 | $self->{'unquote'} = 1; | ||||
858 | } elsif (substr($arg, 0, 2) eq "-s") { | ||||
859 | $self->style_opts(substr $arg, 2); | ||||
860 | } elsif ($arg =~ /^-x(\d)$/) { | ||||
861 | $self->{'expand'} = $1; | ||||
862 | } | ||||
863 | } | ||||
864 | return $self; | ||||
865 | } | ||||
866 | |||||
867 | { | ||||
868 | # Mask out the bits that L<warnings::register> uses | ||||
869 | 1 | 300ns | my $WARN_MASK; | ||
870 | # spent 5µs within B::Deparse::BEGIN@870 which was called:
# once (5µs+0s) by YAML::XS::BEGIN@57 at line 872 | ||||
871 | 1 | 5µs | $WARN_MASK = $warnings::Bits{all} | $warnings::DeadBits{all}; | ||
872 | 1 | 328µs | 1 | 5µs | } # spent 5µs making 1 call to B::Deparse::BEGIN@870 |
873 | sub WARN_MASK () { | ||||
874 | return $WARN_MASK; | ||||
875 | } | ||||
876 | } | ||||
877 | |||||
878 | # Initialise the contextual information, either from | ||||
879 | # defaults provided with the ambient_pragmas method, | ||||
880 | # or from perl's own defaults otherwise. | ||||
881 | 1 | 200ns | sub init { | ||
882 | my $self = shift; | ||||
883 | |||||
884 | $self->{'arybase'} = $self->{'ambient_arybase'}; | ||||
885 | $self->{'warnings'} = defined ($self->{'ambient_warnings'}) | ||||
886 | ? $self->{'ambient_warnings'} & WARN_MASK | ||||
887 | : undef; | ||||
888 | $self->{'hints'} = $self->{'ambient_hints'}; | ||||
889 | $self->{'hints'} &= 0xFF if $] < 5.009; | ||||
890 | $self->{'hinthash'} = $self->{'ambient_hinthash'}; | ||||
891 | |||||
892 | # also a convenient place to clear out subs_declared | ||||
893 | delete $self->{'subs_declared'}; | ||||
894 | } | ||||
895 | |||||
896 | sub compile { | ||||
897 | my(@args) = @_; | ||||
898 | return sub { | ||||
899 | my $self = B::Deparse->new(@args); | ||||
900 | # First deparse command-line args | ||||
901 | if (defined $^I) { # deparse -i | ||||
902 | print q(BEGIN { $^I = ).perlstring($^I).qq(; }\n); | ||||
903 | } | ||||
904 | if ($^W) { # deparse -w | ||||
905 | print qq(BEGIN { \$^W = $^W; }\n); | ||||
906 | } | ||||
907 | if ($/ ne "\n" or defined $O::savebackslash) { # deparse -l and -0 | ||||
908 | my $fs = perlstring($/) || 'undef'; | ||||
909 | my $bs = perlstring($O::savebackslash) || 'undef'; | ||||
910 | print qq(BEGIN { \$/ = $fs; \$\\ = $bs; }\n); | ||||
911 | } | ||||
912 | my @BEGINs = B::begin_av->isa("B::AV") ? B::begin_av->ARRAY : (); | ||||
913 | my @UNITCHECKs = B::unitcheck_av->isa("B::AV") | ||||
914 | ? B::unitcheck_av->ARRAY | ||||
915 | : (); | ||||
916 | my @CHECKs = B::check_av->isa("B::AV") ? B::check_av->ARRAY : (); | ||||
917 | my @INITs = B::init_av->isa("B::AV") ? B::init_av->ARRAY : (); | ||||
918 | my @ENDs = B::end_av->isa("B::AV") ? B::end_av->ARRAY : (); | ||||
919 | my @names = qw(BEGIN UNITCHECK CHECK INIT END); | ||||
920 | my @blocks = \(@BEGINs, @UNITCHECKs, @CHECKs, @INITs, @ENDs); | ||||
921 | while (@names) { | ||||
922 | my ($name, $blocks) = (shift @names, shift @blocks); | ||||
923 | for my $block (@$blocks) { | ||||
924 | $self->todo($block, 0, $name); | ||||
925 | } | ||||
926 | } | ||||
927 | $self->stash_subs(); | ||||
928 | local($SIG{"__DIE__"}) = | ||||
929 | sub { | ||||
930 | if ($self->{'curcop'}) { | ||||
931 | my $cop = $self->{'curcop'}; | ||||
932 | my($line, $file) = ($cop->line, $cop->file); | ||||
933 | print STDERR "While deparsing $file near line $line,\n"; | ||||
934 | } | ||||
935 | }; | ||||
936 | $self->{'curcv'} = main_cv; | ||||
937 | $self->{'curcvlex'} = undef; | ||||
938 | print $self->print_protos; | ||||
939 | @{$self->{'subs_todo'}} = | ||||
940 | sort {$a->[0] <=> $b->[0]} @{$self->{'subs_todo'}}; | ||||
941 | my $root = main_root; | ||||
942 | local $B::overlay = {}; | ||||
943 | unless (null $root) { | ||||
944 | $self->pad_subs($self->{'curcv'}); | ||||
945 | # Check for a stub-followed-by-ex-cop, resulting from a program | ||||
946 | # consisting solely of sub declarations. For backward-compati- | ||||
947 | # bility (and sane output) we don’t want to emit the stub. | ||||
948 | # leave | ||||
949 | # enter | ||||
950 | # stub | ||||
951 | # ex-nextstate (or ex-dbstate) | ||||
952 | my $kid; | ||||
953 | if ( $root->name eq 'leave' | ||||
954 | and ($kid = $root->first)->name eq 'enter' | ||||
955 | and !null($kid = $kid->sibling) and $kid->name eq 'stub' | ||||
956 | and !null($kid = $kid->sibling) and $kid->name eq 'null' | ||||
957 | and class($kid) eq 'COP' and null $kid->sibling ) | ||||
958 | { | ||||
959 | # ignore | ||||
960 | } else { | ||||
961 | $self->pessimise($root, main_start); | ||||
962 | print $self->indent($self->deparse_root($root)), "\n"; | ||||
963 | } | ||||
964 | } | ||||
965 | my @text; | ||||
966 | while (scalar(@{$self->{'subs_todo'}})) { | ||||
967 | push @text, $self->next_todo; | ||||
968 | } | ||||
969 | print $self->indent(join("", @text)), "\n" if @text; | ||||
970 | |||||
971 | # Print __DATA__ section, if necessary | ||||
972 | 2 | 2.45ms | 2 | 20µs | # spent 13µs (6+7) within B::Deparse::BEGIN@972 which was called:
# once (6µs+7µs) by YAML::XS::BEGIN@57 at line 972 # spent 13µs making 1 call to B::Deparse::BEGIN@972
# spent 7µs making 1 call to strict::unimport |
973 | my $laststash = defined $self->{'curcop'} | ||||
974 | ? $self->{'curcop'}->stash->NAME : $self->{'curstash'}; | ||||
975 | if (defined *{$laststash."::DATA"}{IO}) { | ||||
976 | print $self->keyword("package") . " $laststash;\n" | ||||
977 | unless $laststash eq $self->{'curstash'}; | ||||
978 | print $self->keyword("__DATA__") . "\n"; | ||||
979 | print readline(*{$laststash."::DATA"}); | ||||
980 | } | ||||
981 | } | ||||
982 | } | ||||
983 | |||||
984 | sub coderef2text { | ||||
985 | my $self = shift; | ||||
986 | my $sub = shift; | ||||
987 | croak "Usage: ->coderef2text(CODEREF)" unless UNIVERSAL::isa($sub, "CODE"); | ||||
988 | |||||
989 | $self->init(); | ||||
990 | local $self->{in_coderef2text} = 1; | ||||
991 | return $self->indent($self->deparse_sub(svref_2object($sub))); | ||||
992 | } | ||||
993 | |||||
994 | 1 | 1µs | my %strict_bits = do { | ||
995 | 1 | 2µs | local $^H; | ||
996 | 1 | 4µs | 3 | 8µs | map +($_ => strict::bits($_)), qw/refs subs vars/ # spent 8µs making 3 calls to strict::bits, avg 3µs/call |
997 | }; | ||||
998 | |||||
999 | sub ambient_pragmas { | ||||
1000 | my $self = shift; | ||||
1001 | my ($arybase, $hint_bits, $warning_bits, $hinthash) = (0, 0); | ||||
1002 | |||||
1003 | while (@_ > 1) { | ||||
1004 | my $name = shift(); | ||||
1005 | my $val = shift(); | ||||
1006 | |||||
1007 | if ($name eq 'strict') { | ||||
1008 | require strict; | ||||
1009 | |||||
1010 | if ($val eq 'none') { | ||||
1011 | $hint_bits &= $strict_bits{$_} for qw/refs subs vars/; | ||||
1012 | next(); | ||||
1013 | } | ||||
1014 | |||||
1015 | my @names; | ||||
1016 | if ($val eq "all") { | ||||
1017 | @names = qw/refs subs vars/; | ||||
1018 | } | ||||
1019 | elsif (ref $val) { | ||||
1020 | @names = @$val; | ||||
1021 | } | ||||
1022 | else { | ||||
1023 | @names = split' ', $val; | ||||
1024 | } | ||||
1025 | $hint_bits |= $strict_bits{$_} for @names; | ||||
1026 | } | ||||
1027 | |||||
1028 | elsif ($name eq '$[') { | ||||
1029 | if (OPpCONST_ARYBASE) { | ||||
1030 | $arybase = $val; | ||||
1031 | } else { | ||||
1032 | croak "\$[ can't be non-zero on this perl" unless $val == 0; | ||||
1033 | } | ||||
1034 | } | ||||
1035 | |||||
1036 | elsif ($name eq 'integer' | ||||
1037 | || $name eq 'bytes' | ||||
1038 | || $name eq 'utf8') { | ||||
1039 | require "$name.pm"; | ||||
1040 | if ($val) { | ||||
1041 | $hint_bits |= ${$::{"${name}::"}{"hint_bits"}}; | ||||
1042 | } | ||||
1043 | else { | ||||
1044 | $hint_bits &= ~${$::{"${name}::"}{"hint_bits"}}; | ||||
1045 | } | ||||
1046 | } | ||||
1047 | |||||
1048 | elsif ($name eq 're') { | ||||
1049 | require re; | ||||
1050 | if ($val eq 'none') { | ||||
1051 | $hint_bits &= ~re::bits(qw/taint eval/); | ||||
1052 | next(); | ||||
1053 | } | ||||
1054 | |||||
1055 | my @names; | ||||
1056 | if ($val eq 'all') { | ||||
1057 | @names = qw/taint eval/; | ||||
1058 | } | ||||
1059 | elsif (ref $val) { | ||||
1060 | @names = @$val; | ||||
1061 | } | ||||
1062 | else { | ||||
1063 | @names = split' ',$val; | ||||
1064 | } | ||||
1065 | $hint_bits |= re::bits(@names); | ||||
1066 | } | ||||
1067 | |||||
1068 | elsif ($name eq 'warnings') { | ||||
1069 | if ($val eq 'none') { | ||||
1070 | $warning_bits = $warnings::NONE; | ||||
1071 | next(); | ||||
1072 | } | ||||
1073 | |||||
1074 | my @names; | ||||
1075 | if (ref $val) { | ||||
1076 | @names = @$val; | ||||
1077 | } | ||||
1078 | else { | ||||
1079 | @names = split/\s+/, $val; | ||||
1080 | } | ||||
1081 | |||||
1082 | $warning_bits = $warnings::NONE if !defined ($warning_bits); | ||||
1083 | $warning_bits |= warnings::bits(@names); | ||||
1084 | } | ||||
1085 | |||||
1086 | elsif ($name eq 'warning_bits') { | ||||
1087 | $warning_bits = $val; | ||||
1088 | } | ||||
1089 | |||||
1090 | elsif ($name eq 'hint_bits') { | ||||
1091 | $hint_bits = $val; | ||||
1092 | } | ||||
1093 | |||||
1094 | elsif ($name eq '%^H') { | ||||
1095 | $hinthash = $val; | ||||
1096 | } | ||||
1097 | |||||
1098 | else { | ||||
1099 | croak "Unknown pragma type: $name"; | ||||
1100 | } | ||||
1101 | } | ||||
1102 | if (@_) { | ||||
1103 | croak "The ambient_pragmas method expects an even number of args"; | ||||
1104 | } | ||||
1105 | |||||
1106 | $self->{'ambient_arybase'} = $arybase; | ||||
1107 | $self->{'ambient_warnings'} = $warning_bits; | ||||
1108 | $self->{'ambient_hints'} = $hint_bits; | ||||
1109 | $self->{'ambient_hinthash'} = $hinthash; | ||||
1110 | } | ||||
1111 | |||||
1112 | # This method is the inner loop, so try to keep it simple | ||||
1113 | sub deparse { | ||||
1114 | my $self = shift; | ||||
1115 | my($op, $cx) = @_; | ||||
1116 | |||||
1117 | Carp::confess("Null op in deparse") if !defined($op) | ||||
1118 | || class($op) eq "NULL"; | ||||
1119 | my $meth = "pp_" . $op->name; | ||||
1120 | return $self->$meth($op, $cx); | ||||
1121 | } | ||||
1122 | |||||
1123 | sub indent { | ||||
1124 | my $self = shift; | ||||
1125 | my $txt = shift; | ||||
1126 | # \cK also swallows a preceding line break when followed by a | ||||
1127 | # semicolon. | ||||
1128 | $txt =~ s/\n\cK;//g; | ||||
1129 | my @lines = split(/\n/, $txt); | ||||
1130 | my $leader = ""; | ||||
1131 | my $level = 0; | ||||
1132 | my $line; | ||||
1133 | for $line (@lines) { | ||||
1134 | my $cmd = substr($line, 0, 1); | ||||
1135 | if ($cmd eq "\t" or $cmd eq "\b") { | ||||
1136 | $level += ($cmd eq "\t" ? 1 : -1) * $self->{'indent_size'}; | ||||
1137 | if ($self->{'use_tabs'}) { | ||||
1138 | $leader = "\t" x ($level / 8) . " " x ($level % 8); | ||||
1139 | } else { | ||||
1140 | $leader = " " x $level; | ||||
1141 | } | ||||
1142 | $line = substr($line, 1); | ||||
1143 | } | ||||
1144 | if (index($line, "\f") > 0) { | ||||
1145 | $line =~ s/\f/\n/; | ||||
1146 | } | ||||
1147 | if (substr($line, 0, 1) eq "\f") { | ||||
1148 | $line = substr($line, 1); # no indent | ||||
1149 | } else { | ||||
1150 | $line = $leader . $line; | ||||
1151 | } | ||||
1152 | $line =~ s/\cK;?//g; | ||||
1153 | } | ||||
1154 | return join("\n", @lines); | ||||
1155 | } | ||||
1156 | |||||
1157 | sub pad_subs { | ||||
1158 | my ($self, $cv) = @_; | ||||
1159 | my $padlist = $cv->PADLIST; | ||||
1160 | my @names = $padlist->ARRAYelt(0)->ARRAY; | ||||
1161 | my @values = $padlist->ARRAYelt(1)->ARRAY; | ||||
1162 | my @todo; | ||||
1163 | PADENTRY: | ||||
1164 | for my $ix (0.. $#names) { for $_ ($names[$ix]) { | ||||
1165 | next if class($_) eq "SPECIAL"; | ||||
1166 | my $name = $_->PVX; | ||||
1167 | if (defined $name && $name =~ /^&./) { | ||||
1168 | my $low = $_->COP_SEQ_RANGE_LOW; | ||||
1169 | my $flags = $_->FLAGS; | ||||
1170 | my $outer = $flags & PADNAMEt_OUTER; | ||||
1171 | if ($flags & SVpad_OUR) { | ||||
1172 | push @todo, [$low, undef, 0, $_] | ||||
1173 | # [seq, no cv, not format, padname] | ||||
1174 | unless $outer; | ||||
1175 | next; | ||||
1176 | } | ||||
1177 | my $protocv = $flags & SVpad_STATE | ||||
1178 | ? $values[$ix] | ||||
1179 | : $_->PROTOCV; | ||||
1180 | if (class ($protocv) ne 'CV') { | ||||
1181 | my $flags = $flags; | ||||
1182 | my $cv = $cv; | ||||
1183 | my $name = $_; | ||||
1184 | while ($flags & PADNAMEt_OUTER && class ($protocv) ne 'CV') | ||||
1185 | { | ||||
1186 | $cv = $cv->OUTSIDE; | ||||
1187 | next PADENTRY if class($cv) eq 'SPECIAL'; # XXX freed? | ||||
1188 | my $padlist = $cv->PADLIST; | ||||
1189 | my $ix = $name->PARENT_PAD_INDEX; | ||||
1190 | $name = $padlist->NAMES->ARRAYelt($ix); | ||||
1191 | $flags = $name->FLAGS; | ||||
1192 | $protocv = $flags & SVpad_STATE | ||||
1193 | ? $padlist->ARRAYelt(1)->ARRAYelt($ix) | ||||
1194 | : $name->PROTOCV; | ||||
1195 | } | ||||
1196 | } | ||||
1197 | my $defined_in_this_sub = ${$protocv->OUTSIDE} == $$cv || do { | ||||
1198 | my $other = $protocv->PADLIST; | ||||
1199 | $$other && $other->outid == $padlist->id; | ||||
1200 | }; | ||||
1201 | if ($flags & PADNAMEt_OUTER) { | ||||
1202 | next unless $defined_in_this_sub; | ||||
1203 | push @todo, [$protocv->OUTSIDE_SEQ, $protocv, 0, $_]; | ||||
1204 | next; | ||||
1205 | } | ||||
1206 | my $outseq = $protocv->OUTSIDE_SEQ; | ||||
1207 | if ($outseq <= $low) { | ||||
1208 | # defined before its name is visible, so it’s gotta be | ||||
1209 | # declared and defined at once: my sub foo { ... } | ||||
1210 | push @todo, [$low, $protocv, 0, $_]; | ||||
1211 | } | ||||
1212 | else { | ||||
1213 | # declared and defined separately: my sub f; sub f { ... } | ||||
1214 | push @todo, [$low, undef, 0, $_]; | ||||
1215 | push @todo, [$outseq, $protocv, 0, $_] | ||||
1216 | if $defined_in_this_sub; | ||||
1217 | } | ||||
1218 | } | ||||
1219 | }} | ||||
1220 | @{$self->{'subs_todo'}} = | ||||
1221 | sort {$a->[0] <=> $b->[0]} @{$self->{'subs_todo'}}, @todo | ||||
1222 | } | ||||
1223 | |||||
1224 | sub deparse_sub { | ||||
1225 | my $self = shift; | ||||
1226 | my $cv = shift; | ||||
1227 | my $proto = ""; | ||||
1228 | Carp::confess("NULL in deparse_sub") if !defined($cv) || $cv->isa("B::NULL"); | ||||
1229 | Carp::confess("SPECIAL in deparse_sub") if $cv->isa("B::SPECIAL"); | ||||
1230 | local $self->{'curcop'} = $self->{'curcop'}; | ||||
1231 | if ($cv->FLAGS & SVf_POK) { | ||||
1232 | $proto = "(". $cv->PV . ") "; | ||||
1233 | } | ||||
1234 | if ($cv->CvFLAGS & (CVf_METHOD|CVf_LOCKED|CVf_LVALUE|CVf_ANONCONST)) { | ||||
1235 | $proto .= ": "; | ||||
1236 | $proto .= "lvalue " if $cv->CvFLAGS & CVf_LVALUE; | ||||
1237 | $proto .= "locked " if $cv->CvFLAGS & CVf_LOCKED; | ||||
1238 | $proto .= "method " if $cv->CvFLAGS & CVf_METHOD; | ||||
1239 | $proto .= "const " if $cv->CvFLAGS & CVf_ANONCONST; | ||||
1240 | } | ||||
1241 | |||||
1242 | local($self->{'curcv'}) = $cv; | ||||
1243 | local($self->{'curcvlex'}); | ||||
1244 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
1245 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
1246 | my $body; | ||||
1247 | my $root = $cv->ROOT; | ||||
1248 | local $B::overlay = {}; | ||||
1249 | if (not null $root) { | ||||
1250 | $self->pad_subs($cv); | ||||
1251 | $self->pessimise($root, $cv->START); | ||||
1252 | my $lineseq = $root->first; | ||||
1253 | if ($lineseq->name eq "lineseq") { | ||||
1254 | my @ops; | ||||
1255 | for(my$o=$lineseq->first; $$o; $o=$o->sibling) { | ||||
1256 | push @ops, $o; | ||||
1257 | } | ||||
1258 | $body = $self->lineseq(undef, 0, @ops).";"; | ||||
1259 | my $scope_en = $self->find_scope_en($lineseq); | ||||
1260 | if (defined $scope_en) { | ||||
1261 | my $subs = join"", $self->seq_subs($scope_en); | ||||
1262 | $body .= ";\n$subs" if length($subs); | ||||
1263 | } | ||||
1264 | } | ||||
1265 | else { | ||||
1266 | $body = $self->deparse($root->first, 0); | ||||
1267 | } | ||||
1268 | } | ||||
1269 | else { | ||||
1270 | my $sv = $cv->const_sv; | ||||
1271 | if ($$sv) { | ||||
1272 | # uh-oh. inlinable sub... format it differently | ||||
1273 | return $proto . "{ " . $self->const($sv, 0) . " }\n"; | ||||
1274 | } else { # XSUB? (or just a declaration) | ||||
1275 | return "$proto;\n"; | ||||
1276 | } | ||||
1277 | } | ||||
1278 | return $proto ."{\n\t$body\n\b}" ."\n"; | ||||
1279 | } | ||||
1280 | |||||
1281 | sub deparse_format { | ||||
1282 | my $self = shift; | ||||
1283 | my $form = shift; | ||||
1284 | my @text; | ||||
1285 | local($self->{'curcv'}) = $form; | ||||
1286 | local($self->{'curcvlex'}); | ||||
1287 | local($self->{'in_format'}) = 1; | ||||
1288 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
1289 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
1290 | my $op = $form->ROOT; | ||||
1291 | local $B::overlay = {}; | ||||
1292 | $self->pessimise($op, $form->START); | ||||
1293 | my $kid; | ||||
1294 | return "\f." if $op->first->name eq 'stub' | ||||
1295 | || $op->first->name eq 'nextstate'; | ||||
1296 | $op = $op->first->first; # skip leavewrite, lineseq | ||||
1297 | while (not null $op) { | ||||
1298 | $op = $op->sibling; # skip nextstate | ||||
1299 | my @exprs; | ||||
1300 | $kid = $op->first->sibling; # skip pushmark | ||||
1301 | push @text, "\f".$self->const_sv($kid)->PV; | ||||
1302 | $kid = $kid->sibling; | ||||
1303 | for (; not null $kid; $kid = $kid->sibling) { | ||||
1304 | push @exprs, $self->deparse($kid, -1); | ||||
1305 | $exprs[-1] =~ s/;\z//; | ||||
1306 | } | ||||
1307 | push @text, "\f".join(", ", @exprs)."\n" if @exprs; | ||||
1308 | $op = $op->sibling; | ||||
1309 | } | ||||
1310 | return join("", @text) . "\f."; | ||||
1311 | } | ||||
1312 | |||||
1313 | sub is_scope { | ||||
1314 | my $op = shift; | ||||
1315 | return $op->name eq "leave" || $op->name eq "scope" | ||||
1316 | || $op->name eq "lineseq" | ||||
1317 | || ($op->name eq "null" && class($op) eq "UNOP" | ||||
1318 | && (is_scope($op->first) || $op->first->name eq "enter")); | ||||
1319 | } | ||||
1320 | |||||
1321 | sub is_state { | ||||
1322 | my $name = $_[0]->name; | ||||
1323 | return $name eq "nextstate" || $name eq "dbstate" || $name eq "setstate"; | ||||
1324 | } | ||||
1325 | |||||
1326 | sub is_miniwhile { # check for one-line loop ('foo() while $y--') | ||||
1327 | my $op = shift; | ||||
1328 | return (!null($op) and null($op->sibling) | ||||
1329 | and $op->name eq "null" and class($op) eq "UNOP" | ||||
1330 | and (($op->first->name =~ /^(and|or)$/ | ||||
1331 | and $op->first->first->sibling->name eq "lineseq") | ||||
1332 | or ($op->first->name eq "lineseq" | ||||
1333 | and not null $op->first->first->sibling | ||||
1334 | and $op->first->first->sibling->name eq "unstack") | ||||
1335 | )); | ||||
1336 | } | ||||
1337 | |||||
1338 | # Check if the op and its sibling are the initialization and the rest of a | ||||
1339 | # for (..;..;..) { ... } loop | ||||
1340 | sub is_for_loop { | ||||
1341 | my $op = shift; | ||||
1342 | # This OP might be almost anything, though it won't be a | ||||
1343 | # nextstate. (It's the initialization, so in the canonical case it | ||||
1344 | # will be an sassign.) The sibling is (old style) a lineseq whose | ||||
1345 | # first child is a nextstate and whose second is a leaveloop, or | ||||
1346 | # (new style) an unstack whose sibling is a leaveloop. | ||||
1347 | my $lseq = $op->sibling; | ||||
1348 | return 0 unless !is_state($op) and !null($lseq); | ||||
1349 | if ($lseq->name eq "lineseq") { | ||||
1350 | if ($lseq->first && !null($lseq->first) && is_state($lseq->first) | ||||
1351 | && (my $sib = $lseq->first->sibling)) { | ||||
1352 | return (!null($sib) && $sib->name eq "leaveloop"); | ||||
1353 | } | ||||
1354 | } elsif ($lseq->name eq "unstack" && ($lseq->flags & OPf_SPECIAL)) { | ||||
1355 | my $sib = $lseq->sibling; | ||||
1356 | return $sib && !null($sib) && $sib->name eq "leaveloop"; | ||||
1357 | } | ||||
1358 | return 0; | ||||
1359 | } | ||||
1360 | |||||
1361 | sub is_scalar { | ||||
1362 | my $op = shift; | ||||
1363 | return ($op->name eq "rv2sv" or | ||||
1364 | $op->name eq "padsv" or | ||||
1365 | $op->name eq "gv" or # only in array/hash constructs | ||||
1366 | $op->flags & OPf_KIDS && !null($op->first) | ||||
1367 | && $op->first->name eq "gvsv"); | ||||
1368 | } | ||||
1369 | |||||
1370 | sub maybe_parens { | ||||
1371 | my $self = shift; | ||||
1372 | my($text, $cx, $prec) = @_; | ||||
1373 | if ($prec < $cx # unary ops nest just fine | ||||
1374 | or $prec == $cx and $cx != 4 and $cx != 16 and $cx != 21 | ||||
1375 | or $self->{'parens'}) | ||||
1376 | { | ||||
1377 | $text = "($text)"; | ||||
1378 | # In a unop, let parent reuse our parens; see maybe_parens_unop | ||||
1379 | $text = "\cS" . $text if $cx == 16; | ||||
1380 | return $text; | ||||
1381 | } else { | ||||
1382 | return $text; | ||||
1383 | } | ||||
1384 | } | ||||
1385 | |||||
1386 | # same as above, but get around the 'if it looks like a function' rule | ||||
1387 | sub maybe_parens_unop { | ||||
1388 | my $self = shift; | ||||
1389 | my($name, $kid, $cx) = @_; | ||||
1390 | if ($cx > 16 or $self->{'parens'}) { | ||||
1391 | $kid = $self->deparse($kid, 1); | ||||
1392 | if ($name eq "umask" && $kid =~ /^\d+$/) { | ||||
1393 | $kid = sprintf("%#o", $kid); | ||||
1394 | } | ||||
1395 | return $self->keyword($name) . "($kid)"; | ||||
1396 | } else { | ||||
1397 | $kid = $self->deparse($kid, 16); | ||||
1398 | if ($name eq "umask" && $kid =~ /^\d+$/) { | ||||
1399 | $kid = sprintf("%#o", $kid); | ||||
1400 | } | ||||
1401 | $name = $self->keyword($name); | ||||
1402 | if (substr($kid, 0, 1) eq "\cS") { | ||||
1403 | # use kid's parens | ||||
1404 | return $name . substr($kid, 1); | ||||
1405 | } elsif (substr($kid, 0, 1) eq "(") { | ||||
1406 | # avoid looks-like-a-function trap with extra parens | ||||
1407 | # ('+' can lead to ambiguities) | ||||
1408 | return "$name(" . $kid . ")"; | ||||
1409 | } else { | ||||
1410 | return "$name $kid"; | ||||
1411 | } | ||||
1412 | } | ||||
1413 | } | ||||
1414 | |||||
1415 | sub maybe_parens_func { | ||||
1416 | my $self = shift; | ||||
1417 | my($func, $text, $cx, $prec) = @_; | ||||
1418 | if ($prec <= $cx or substr($text, 0, 1) eq "(" or $self->{'parens'}) { | ||||
1419 | return "$func($text)"; | ||||
1420 | } else { | ||||
1421 | return "$func $text"; | ||||
1422 | } | ||||
1423 | } | ||||
1424 | |||||
1425 | sub find_our_type { | ||||
1426 | my ($self, $name) = @_; | ||||
1427 | $self->populate_curcvlex() if !defined $self->{'curcvlex'}; | ||||
1428 | my $seq = $self->{'curcop'} ? $self->{'curcop'}->cop_seq : 0; | ||||
1429 | for my $a (@{$self->{'curcvlex'}{"o$name"}}) { | ||||
1430 | my ($st, undef, $padname) = @$a; | ||||
1431 | if ($st >= $seq && $padname->FLAGS & SVpad_TYPED) { | ||||
1432 | return $padname->SvSTASH->NAME; | ||||
1433 | } | ||||
1434 | } | ||||
1435 | return ''; | ||||
1436 | } | ||||
1437 | |||||
1438 | sub maybe_local { | ||||
1439 | my $self = shift; | ||||
1440 | my($op, $cx, $text) = @_; | ||||
1441 | my $name = $op->name; | ||||
1442 | my $our_intro = ($name =~ /^(?:(?:gv|rv2)[ash]v|split|refassign | ||||
1443 | |lv(?:av)?ref)$/x) | ||||
1444 | ? OPpOUR_INTRO | ||||
1445 | : 0; | ||||
1446 | my $lval_intro = $name eq 'split' ? 0 : OPpLVAL_INTRO; | ||||
1447 | # The @a in \(@a) isn't in ref context, but only when the | ||||
1448 | # parens are there. | ||||
1449 | my $need_parens = $self->{'in_refgen'} && $name =~ /[ah]v\z/ | ||||
1450 | && ($op->flags & (OPf_PARENS|OPf_REF)) == OPf_PARENS; | ||||
1451 | if ((my $priv = $op->private) & ($lval_intro|$our_intro)) { | ||||
1452 | my @our_local; | ||||
1453 | push @our_local, "local" if $priv & $lval_intro; | ||||
1454 | push @our_local, "our" if $priv & $our_intro; | ||||
1455 | my $our_local = join " ", map $self->keyword($_), @our_local; | ||||
1456 | if( $our_local[-1] eq 'our' ) { | ||||
1457 | if ( $text !~ /^\W(\w+::)*\w+\z/ | ||||
1458 | and !utf8::decode($text) || $text !~ /^\W(\w+::)*\w+\z/ | ||||
1459 | ) { | ||||
1460 | die "Unexpected our($text)\n"; | ||||
1461 | } | ||||
1462 | $text =~ s/(\w+::)+//; | ||||
1463 | |||||
1464 | if (my $type = $self->find_our_type($text)) { | ||||
1465 | $our_local .= ' ' . $type; | ||||
1466 | } | ||||
1467 | } | ||||
1468 | return $need_parens ? "($text)" : $text | ||||
1469 | if $self->{'avoid_local'}{$$op}; | ||||
1470 | if ($need_parens) { | ||||
1471 | return "$our_local($text)"; | ||||
1472 | } elsif (want_scalar($op)) { | ||||
1473 | return "$our_local $text"; | ||||
1474 | } else { | ||||
1475 | return $self->maybe_parens_func("$our_local", $text, $cx, 16); | ||||
1476 | } | ||||
1477 | } else { | ||||
1478 | return $need_parens ? "($text)" : $text; | ||||
1479 | } | ||||
1480 | } | ||||
1481 | |||||
1482 | sub maybe_targmy { | ||||
1483 | my $self = shift; | ||||
1484 | my($op, $cx, $func, @args) = @_; | ||||
1485 | if ($op->private & OPpTARGET_MY) { | ||||
1486 | my $var = $self->padname($op->targ); | ||||
1487 | my $val = $func->($self, $op, 7, @args); | ||||
1488 | return $self->maybe_parens("$var = $val", $cx, 7); | ||||
1489 | } else { | ||||
1490 | return $func->($self, $op, $cx, @args); | ||||
1491 | } | ||||
1492 | } | ||||
1493 | |||||
1494 | sub padname_sv { | ||||
1495 | my $self = shift; | ||||
1496 | my $targ = shift; | ||||
1497 | return $self->{'curcv'}->PADLIST->ARRAYelt(0)->ARRAYelt($targ); | ||||
1498 | } | ||||
1499 | |||||
1500 | sub maybe_my { | ||||
1501 | my $self = shift; | ||||
1502 | my($op, $cx, $text, $padname, $forbid_parens) = @_; | ||||
1503 | # The @a in \(@a) isn't in ref context, but only when the | ||||
1504 | # parens are there. | ||||
1505 | my $need_parens = !$forbid_parens && $self->{'in_refgen'} | ||||
1506 | && $op->name =~ /[ah]v\z/ | ||||
1507 | && ($op->flags & (OPf_PARENS|OPf_REF)) == OPf_PARENS; | ||||
1508 | # The @a in \my @a must not have parens. | ||||
1509 | if (!$need_parens && $self->{'in_refgen'}) { | ||||
1510 | $forbid_parens = 1; | ||||
1511 | } | ||||
1512 | if ($op->private & OPpLVAL_INTRO and not $self->{'avoid_local'}{$$op}) { | ||||
1513 | # Check $padname->FLAGS for statehood, rather than $op->private, | ||||
1514 | # because enteriter ops do not carry the flag. | ||||
1515 | my $my = | ||||
1516 | $self->keyword($padname->FLAGS & SVpad_STATE ? "state" : "my"); | ||||
1517 | if ($padname->FLAGS & SVpad_TYPED) { | ||||
1518 | $my .= ' ' . $padname->SvSTASH->NAME; | ||||
1519 | } | ||||
1520 | if ($need_parens) { | ||||
1521 | return "$my($text)"; | ||||
1522 | } elsif ($forbid_parens || want_scalar($op)) { | ||||
1523 | return "$my $text"; | ||||
1524 | } else { | ||||
1525 | return $self->maybe_parens_func($my, $text, $cx, 16); | ||||
1526 | } | ||||
1527 | } else { | ||||
1528 | return $need_parens ? "($text)" : $text; | ||||
1529 | } | ||||
1530 | } | ||||
1531 | |||||
1532 | # The following OPs don't have functions: | ||||
1533 | |||||
1534 | # pp_padany -- does not exist after parsing | ||||
1535 | |||||
1536 | sub AUTOLOAD { | ||||
1537 | if ($AUTOLOAD =~ s/^.*::pp_//) { | ||||
1538 | warn "unexpected OP_". | ||||
1539 | ($_[1]->type == OP_CUSTOM ? "CUSTOM ($AUTOLOAD)" : uc $AUTOLOAD); | ||||
1540 | return "XXX"; | ||||
1541 | } else { | ||||
1542 | die "Undefined subroutine $AUTOLOAD called"; | ||||
1543 | } | ||||
1544 | } | ||||
1545 | |||||
1546 | sub DESTROY {} # Do not AUTOLOAD | ||||
1547 | |||||
1548 | # $root should be the op which represents the root of whatever | ||||
1549 | # we're sequencing here. If it's undefined, then we don't append | ||||
1550 | # any subroutine declarations to the deparsed ops, otherwise we | ||||
1551 | # append appropriate declarations. | ||||
1552 | sub lineseq { | ||||
1553 | my($self, $root, $cx, @ops) = @_; | ||||
1554 | my($expr, @exprs); | ||||
1555 | |||||
1556 | my $out_cop = $self->{'curcop'}; | ||||
1557 | my $out_seq = defined($out_cop) ? $out_cop->cop_seq : undef; | ||||
1558 | my $limit_seq; | ||||
1559 | if (defined $root) { | ||||
1560 | $limit_seq = $out_seq; | ||||
1561 | my $nseq; | ||||
1562 | $nseq = $self->find_scope_st($root->sibling) if ${$root->sibling}; | ||||
1563 | $limit_seq = $nseq if !defined($limit_seq) | ||||
1564 | or defined($nseq) && $nseq < $limit_seq; | ||||
1565 | } | ||||
1566 | $limit_seq = $self->{'limit_seq'} | ||||
1567 | if defined($self->{'limit_seq'}) | ||||
1568 | && (!defined($limit_seq) || $self->{'limit_seq'} < $limit_seq); | ||||
1569 | local $self->{'limit_seq'} = $limit_seq; | ||||
1570 | |||||
1571 | $self->walk_lineseq($root, \@ops, | ||||
1572 | sub { push @exprs, $_[0]} ); | ||||
1573 | |||||
1574 | my $sep = $cx ? '; ' : ";\n"; | ||||
1575 | my $body = join($sep, grep {length} @exprs); | ||||
1576 | my $subs = ""; | ||||
1577 | if (defined $root && defined $limit_seq && !$self->{'in_format'}) { | ||||
1578 | $subs = join "\n", $self->seq_subs($limit_seq); | ||||
1579 | } | ||||
1580 | return join($sep, grep {length} $body, $subs); | ||||
1581 | } | ||||
1582 | |||||
1583 | sub scopeop { | ||||
1584 | my($real_block, $self, $op, $cx) = @_; | ||||
1585 | my $kid; | ||||
1586 | my @kids; | ||||
1587 | |||||
1588 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
1589 | = @$self{qw'curstash warnings hints hinthash'} if $real_block; | ||||
1590 | if ($real_block) { | ||||
1591 | $kid = $op->first->sibling; # skip enter | ||||
1592 | if (is_miniwhile($kid)) { | ||||
1593 | my $top = $kid->first; | ||||
1594 | my $name = $top->name; | ||||
1595 | if ($name eq "and") { | ||||
1596 | $name = $self->keyword("while"); | ||||
1597 | } elsif ($name eq "or") { | ||||
1598 | $name = $self->keyword("until"); | ||||
1599 | } else { # no conditional -> while 1 or until 0 | ||||
1600 | return $self->deparse($top->first, 1) . " " | ||||
1601 | . $self->keyword("while") . " 1"; | ||||
1602 | } | ||||
1603 | my $cond = $top->first; | ||||
1604 | my $body = $cond->sibling->first; # skip lineseq | ||||
1605 | $cond = $self->deparse($cond, 1); | ||||
1606 | $body = $self->deparse($body, 1); | ||||
1607 | return "$body $name $cond"; | ||||
1608 | } | ||||
1609 | } else { | ||||
1610 | $kid = $op->first; | ||||
1611 | } | ||||
1612 | for (; !null($kid); $kid = $kid->sibling) { | ||||
1613 | push @kids, $kid; | ||||
1614 | } | ||||
1615 | if ($cx > 0) { # inside an expression, (a do {} while for lineseq) | ||||
1616 | my $body = $self->lineseq($op, 0, @kids); | ||||
1617 | return is_lexical_subs(@kids) | ||||
1618 | ? $body | ||||
1619 | : ($self->lex_in_scope("&do") ? "CORE::do" : "do") | ||||
1620 | . " {\n\t$body\n\b}"; | ||||
1621 | } else { | ||||
1622 | my $lineseq = $self->lineseq($op, $cx, @kids); | ||||
1623 | return (length ($lineseq) ? "$lineseq;" : ""); | ||||
1624 | } | ||||
1625 | } | ||||
1626 | |||||
1627 | sub pp_scope { scopeop(0, @_); } | ||||
1628 | sub pp_lineseq { scopeop(0, @_); } | ||||
1629 | sub pp_leave { scopeop(1, @_); } | ||||
1630 | |||||
1631 | # This is a special case of scopeop and lineseq, for the case of the | ||||
1632 | # main_root. The difference is that we print the output statements as | ||||
1633 | # soon as we get them, for the sake of impatient users. | ||||
1634 | sub deparse_root { | ||||
1635 | my $self = shift; | ||||
1636 | my($op) = @_; | ||||
1637 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
1638 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
1639 | my @kids; | ||||
1640 | return if null $op->first; # Can happen, e.g., for Bytecode without -k | ||||
1641 | for (my $kid = $op->first->sibling; !null($kid); $kid = $kid->sibling) { | ||||
1642 | push @kids, $kid; | ||||
1643 | } | ||||
1644 | $self->walk_lineseq($op, \@kids, | ||||
1645 | sub { return unless length $_[0]; | ||||
1646 | print $self->indent($_[0].';'); | ||||
1647 | print "\n" | ||||
1648 | unless $_[1] == $#kids; | ||||
1649 | }); | ||||
1650 | } | ||||
1651 | |||||
1652 | sub walk_lineseq { | ||||
1653 | my ($self, $op, $kids, $callback) = @_; | ||||
1654 | my @kids = @$kids; | ||||
1655 | for (my $i = 0; $i < @kids; $i++) { | ||||
1656 | my $expr = ""; | ||||
1657 | if (is_state $kids[$i]) { | ||||
1658 | $expr = $self->deparse($kids[$i++], 0); | ||||
1659 | if ($i > $#kids) { | ||||
1660 | $callback->($expr, $i); | ||||
1661 | last; | ||||
1662 | } | ||||
1663 | } | ||||
1664 | if (is_for_loop($kids[$i])) { | ||||
1665 | $callback->($expr . $self->for_loop($kids[$i], 0), | ||||
1666 | $i += $kids[$i]->sibling->name eq "unstack" ? 2 : 1); | ||||
1667 | next; | ||||
1668 | } | ||||
1669 | my $expr2 = $self->deparse($kids[$i], (@kids != 1)/2); | ||||
1670 | $expr2 =~ s/^sub :(?!:)/+sub :/; # statement label otherwise | ||||
1671 | $expr .= $expr2; | ||||
1672 | $callback->($expr, $i); | ||||
1673 | } | ||||
1674 | } | ||||
1675 | |||||
1676 | # The BEGIN {} is used here because otherwise this code isn't executed | ||||
1677 | # when you run B::Deparse on itself. | ||||
1678 | 1 | 100ns | my %globalnames; | ||
1679 | 1 | 8µs | # spent 8µs within B::Deparse::BEGIN@1679 which was called:
# once (8µs+0s) by YAML::XS::BEGIN@57 at line 1680 | ||
1680 | 1 | 2.57ms | 1 | 8µs | "ENV", "ARGV", "ARGVOUT", "_"); } # spent 8µs making 1 call to B::Deparse::BEGIN@1679 |
1681 | |||||
1682 | sub gv_name { | ||||
1683 | my $self = shift; | ||||
1684 | my $gv = shift; | ||||
1685 | my $raw = shift; | ||||
1686 | #Carp::confess() unless ref($gv) eq "B::GV"; | ||||
1687 | my $cv = $gv->FLAGS & SVf_ROK ? $gv->RV : 0; | ||||
1688 | my $stash = ($cv || $gv)->STASH->NAME; | ||||
1689 | my $name = $raw | ||||
1690 | ? $cv ? $cv->NAME_HEK || $cv->GV->NAME : $gv->NAME | ||||
1691 | : $cv | ||||
1692 | ? B::safename($cv->NAME_HEK || $cv->GV->NAME) | ||||
1693 | : $gv->SAFENAME; | ||||
1694 | if ($stash eq 'main' && $name =~ /^::/) { | ||||
1695 | $stash = '::'; | ||||
1696 | } | ||||
1697 | elsif (($stash eq 'main' | ||||
1698 | && ($globalnames{$name} || $name =~ /^[^A-Za-z_:]/)) | ||||
1699 | or ($stash eq $self->{'curstash'} && !$globalnames{$name} | ||||
1700 | && ($stash eq 'main' || $name !~ /::/)) | ||||
1701 | ) | ||||
1702 | { | ||||
1703 | $stash = ""; | ||||
1704 | } else { | ||||
1705 | $stash = $stash . "::"; | ||||
1706 | } | ||||
1707 | if (!$raw and $name =~ /^(\^..|{)/) { | ||||
1708 | $name = "{$name}"; # ${^WARNING_BITS}, etc and ${ | ||||
1709 | } | ||||
1710 | return $stash . $name; | ||||
1711 | } | ||||
1712 | |||||
1713 | # Return the name to use for a stash variable. | ||||
1714 | # If a lexical with the same name is in scope, or | ||||
1715 | # if strictures are enabled, it may need to be | ||||
1716 | # fully-qualified. | ||||
1717 | sub stash_variable { | ||||
1718 | my ($self, $prefix, $name, $cx) = @_; | ||||
1719 | |||||
1720 | return "$prefix$name" if $name =~ /::/; | ||||
1721 | |||||
1722 | unless ($prefix eq '$' || $prefix eq '@' || $prefix eq '&' || #' | ||||
1723 | $prefix eq '%' || $prefix eq '$#') { | ||||
1724 | return "$prefix$name"; | ||||
1725 | } | ||||
1726 | |||||
1727 | if ($name =~ /^[^[:alpha:]_+-]$/) { | ||||
1728 | if (defined $cx && $cx == 26) { | ||||
1729 | if ($prefix eq '@') { | ||||
1730 | return "$prefix\{$name}"; | ||||
1731 | } | ||||
1732 | elsif ($name eq '#') { return '${#}' } # "${#}a" vs "$#a" | ||||
1733 | } | ||||
1734 | if ($prefix eq '$#') { | ||||
1735 | return "\$#{$name}"; | ||||
1736 | } | ||||
1737 | } | ||||
1738 | |||||
1739 | return $prefix . $self->maybe_qualify($prefix, $name); | ||||
1740 | } | ||||
1741 | |||||
1742 | 1 | 9µs | my %unctrl = # portable to EBCDIC | ||
1743 | ( | ||||
1744 | "\c@" => '@', # unused | ||||
1745 | "\cA" => 'A', | ||||
1746 | "\cB" => 'B', | ||||
1747 | "\cC" => 'C', | ||||
1748 | "\cD" => 'D', | ||||
1749 | "\cE" => 'E', | ||||
1750 | "\cF" => 'F', | ||||
1751 | "\cG" => 'G', | ||||
1752 | "\cH" => 'H', | ||||
1753 | "\cI" => 'I', | ||||
1754 | "\cJ" => 'J', | ||||
1755 | "\cK" => 'K', | ||||
1756 | "\cL" => 'L', | ||||
1757 | "\cM" => 'M', | ||||
1758 | "\cN" => 'N', | ||||
1759 | "\cO" => 'O', | ||||
1760 | "\cP" => 'P', | ||||
1761 | "\cQ" => 'Q', | ||||
1762 | "\cR" => 'R', | ||||
1763 | "\cS" => 'S', | ||||
1764 | "\cT" => 'T', | ||||
1765 | "\cU" => 'U', | ||||
1766 | "\cV" => 'V', | ||||
1767 | "\cW" => 'W', | ||||
1768 | "\cX" => 'X', | ||||
1769 | "\cY" => 'Y', | ||||
1770 | "\cZ" => 'Z', | ||||
1771 | "\c[" => '[', # unused | ||||
1772 | "\c\\" => '\\', # unused | ||||
1773 | "\c]" => ']', # unused | ||||
1774 | "\c_" => '_', # unused | ||||
1775 | ); | ||||
1776 | |||||
1777 | # Return just the name, without the prefix. It may be returned as a quoted | ||||
1778 | # string. The second return value is a boolean indicating that. | ||||
1779 | sub stash_variable_name { | ||||
1780 | my($self, $prefix, $gv) = @_; | ||||
1781 | my $name = $self->gv_name($gv, 1); | ||||
1782 | $name = $self->maybe_qualify($prefix,$name); | ||||
1783 | if ($name =~ /^(?:\S|(?!\d)[\ca-\cz]?(?:\w|::)*|\d+)\z/) { | ||||
1784 | $name =~ s/^([\ca-\cz])/'^' . $unctrl{$1}/e; | ||||
1785 | $name =~ /^(\^..|{)/ and $name = "{$name}"; | ||||
1786 | return $name, 0; # not quoted | ||||
1787 | } | ||||
1788 | else { | ||||
1789 | single_delim("q", "'", $name, $self), 1; | ||||
1790 | } | ||||
1791 | } | ||||
1792 | |||||
1793 | sub maybe_qualify { | ||||
1794 | my ($self,$prefix,$name) = @_; | ||||
1795 | my $v = ($prefix eq '$#' ? '@' : $prefix) . $name; | ||||
1796 | return $name if !$prefix || $name =~ /::/; | ||||
1797 | return $self->{'curstash'}.'::'. $name | ||||
1798 | if | ||||
1799 | $name =~ /^(?!\d)\w/ # alphabetic | ||||
1800 | && $v !~ /^\$[ab]\z/ # not $a or $b | ||||
1801 | && !$globalnames{$name} # not a global name | ||||
1802 | && $self->{hints} & $strict_bits{vars} # strict vars | ||||
1803 | && !$self->lex_in_scope($v,1) # no "our" | ||||
1804 | or $self->lex_in_scope($v); # conflicts with "my" variable | ||||
1805 | return $name; | ||||
1806 | } | ||||
1807 | |||||
1808 | sub lex_in_scope { | ||||
1809 | my ($self, $name, $our) = @_; | ||||
1810 | substr $name, 0, 0, = $our ? 'o' : 'm'; # our/my | ||||
1811 | $self->populate_curcvlex() if !defined $self->{'curcvlex'}; | ||||
1812 | |||||
1813 | return 0 if !defined($self->{'curcop'}); | ||||
1814 | my $seq = $self->{'curcop'}->cop_seq; | ||||
1815 | return 0 if !exists $self->{'curcvlex'}{$name}; | ||||
1816 | for my $a (@{$self->{'curcvlex'}{$name}}) { | ||||
1817 | my ($st, $en) = @$a; | ||||
1818 | return 1 if $seq > $st && $seq <= $en; | ||||
1819 | } | ||||
1820 | return 0; | ||||
1821 | } | ||||
1822 | |||||
1823 | sub populate_curcvlex { | ||||
1824 | my $self = shift; | ||||
1825 | for (my $cv = $self->{'curcv'}; class($cv) eq "CV"; $cv = $cv->OUTSIDE) { | ||||
1826 | my $padlist = $cv->PADLIST; | ||||
1827 | # an undef CV still in lexical chain | ||||
1828 | next if class($padlist) eq "SPECIAL"; | ||||
1829 | my @padlist = $padlist->ARRAY; | ||||
1830 | my @ns = $padlist[0]->ARRAY; | ||||
1831 | |||||
1832 | for (my $i=0; $i<@ns; ++$i) { | ||||
1833 | next if class($ns[$i]) eq "SPECIAL"; | ||||
1834 | if (class($ns[$i]) eq "PV") { | ||||
1835 | # Probably that pesky lexical @_ | ||||
1836 | next; | ||||
1837 | } | ||||
1838 | my $name = $ns[$i]->PVX; | ||||
1839 | next unless defined $name; | ||||
1840 | my ($seq_st, $seq_en) = | ||||
1841 | ($ns[$i]->FLAGS & SVf_FAKE) | ||||
1842 | ? (0, 999999) | ||||
1843 | : ($ns[$i]->COP_SEQ_RANGE_LOW, $ns[$i]->COP_SEQ_RANGE_HIGH); | ||||
1844 | |||||
1845 | push @{$self->{'curcvlex'}{ | ||||
1846 | ($ns[$i]->FLAGS & SVpad_OUR ? 'o' : 'm') . $name | ||||
1847 | }}, [$seq_st, $seq_en, $ns[$i]]; | ||||
1848 | } | ||||
1849 | } | ||||
1850 | } | ||||
1851 | |||||
1852 | sub find_scope_st { ((find_scope(@_))[0]); } | ||||
1853 | sub find_scope_en { ((find_scope(@_))[1]); } | ||||
1854 | |||||
1855 | # Recurses down the tree, looking for pad variable introductions and COPs | ||||
1856 | sub find_scope { | ||||
1857 | my ($self, $op, $scope_st, $scope_en) = @_; | ||||
1858 | carp("Undefined op in find_scope") if !defined $op; | ||||
1859 | return ($scope_st, $scope_en) unless $op->flags & OPf_KIDS; | ||||
1860 | |||||
1861 | my @queue = ($op); | ||||
1862 | while(my $op = shift @queue ) { | ||||
1863 | for (my $o=$op->first; $$o; $o=$o->sibling) { | ||||
1864 | if ($o->name =~ /^pad.v$/ && $o->private & OPpLVAL_INTRO) { | ||||
1865 | my $s = int($self->padname_sv($o->targ)->COP_SEQ_RANGE_LOW); | ||||
1866 | my $e = $self->padname_sv($o->targ)->COP_SEQ_RANGE_HIGH; | ||||
1867 | $scope_st = $s if !defined($scope_st) || $s < $scope_st; | ||||
1868 | $scope_en = $e if !defined($scope_en) || $e > $scope_en; | ||||
1869 | return ($scope_st, $scope_en); | ||||
1870 | } | ||||
1871 | elsif (is_state($o)) { | ||||
1872 | my $c = $o->cop_seq; | ||||
1873 | $scope_st = $c if !defined($scope_st) || $c < $scope_st; | ||||
1874 | $scope_en = $c if !defined($scope_en) || $c > $scope_en; | ||||
1875 | return ($scope_st, $scope_en); | ||||
1876 | } | ||||
1877 | elsif ($o->flags & OPf_KIDS) { | ||||
1878 | unshift (@queue, $o); | ||||
1879 | } | ||||
1880 | } | ||||
1881 | } | ||||
1882 | |||||
1883 | return ($scope_st, $scope_en); | ||||
1884 | } | ||||
1885 | |||||
1886 | # Returns a list of subs which should be inserted before the COP | ||||
1887 | sub cop_subs { | ||||
1888 | my ($self, $op, $out_seq) = @_; | ||||
1889 | my $seq = $op->cop_seq; | ||||
1890 | if ($] < 5.021006) { | ||||
1891 | # If we have nephews, then our sequence number indicates | ||||
1892 | # the cop_seq of the end of some sort of scope. | ||||
1893 | if (class($op->sibling) ne "NULL" && $op->sibling->flags & OPf_KIDS | ||||
1894 | and my $nseq = $self->find_scope_st($op->sibling) ) { | ||||
1895 | $seq = $nseq; | ||||
1896 | } | ||||
1897 | } | ||||
1898 | $seq = $out_seq if defined($out_seq) && $out_seq < $seq; | ||||
1899 | return $self->seq_subs($seq); | ||||
1900 | } | ||||
1901 | |||||
1902 | sub seq_subs { | ||||
1903 | my ($self, $seq) = @_; | ||||
1904 | my @text; | ||||
1905 | #push @text, "# ($seq)\n"; | ||||
1906 | |||||
1907 | return "" if !defined $seq; | ||||
1908 | my @pending; | ||||
1909 | while (scalar(@{$self->{'subs_todo'}}) | ||||
1910 | and $seq > $self->{'subs_todo'}[0][0]) { | ||||
1911 | my $cv = $self->{'subs_todo'}[0][1]; | ||||
1912 | # Skip the OUTSIDE check for lexical subs. We may be deparsing a | ||||
1913 | # cloned anon sub with lexical subs declared in it, in which case | ||||
1914 | # the OUTSIDE pointer points to the anon protosub. | ||||
1915 | my $lexical = ref $self->{'subs_todo'}[0][3]; | ||||
1916 | my $outside = !$lexical && $cv && $cv->OUTSIDE; | ||||
1917 | if (!$lexical and $cv | ||||
1918 | and ${$cv->OUTSIDE || \0} != ${$self->{'curcv'}}) | ||||
1919 | { | ||||
1920 | push @pending, shift @{$self->{'subs_todo'}}; | ||||
1921 | next; | ||||
1922 | } | ||||
1923 | push @text, $self->next_todo; | ||||
1924 | } | ||||
1925 | unshift @{$self->{'subs_todo'}}, @pending; | ||||
1926 | return @text; | ||||
1927 | } | ||||
1928 | |||||
1929 | sub _features_from_bundle { | ||||
1930 | my ($hints, $hh) = @_; | ||||
1931 | foreach (@{$feature::feature_bundle{@feature::hint_bundles[$hints >> $feature::hint_shift]}}) { | ||||
1932 | $hh->{$feature::feature{$_}} = 1; | ||||
1933 | } | ||||
1934 | return $hh; | ||||
1935 | } | ||||
1936 | |||||
1937 | # Notice how subs and formats are inserted between statements here; | ||||
1938 | # also $[ assignments and pragmas. | ||||
1939 | sub pp_nextstate { | ||||
1940 | my $self = shift; | ||||
1941 | my($op, $cx) = @_; | ||||
1942 | $self->{'curcop'} = $op; | ||||
1943 | my @text; | ||||
1944 | push @text, $self->cop_subs($op); | ||||
1945 | if (@text) { | ||||
1946 | # Special marker to swallow up the semicolon | ||||
1947 | push @text, "\cK"; | ||||
1948 | } | ||||
1949 | my $stash = $op->stashpv; | ||||
1950 | if ($stash ne $self->{'curstash'}) { | ||||
1951 | push @text, $self->keyword("package") . " $stash;\n"; | ||||
1952 | $self->{'curstash'} = $stash; | ||||
1953 | } | ||||
1954 | |||||
1955 | if (OPpCONST_ARYBASE && $self->{'arybase'} != $op->arybase) { | ||||
1956 | push @text, '$[ = '. $op->arybase .";\n"; | ||||
1957 | $self->{'arybase'} = $op->arybase; | ||||
1958 | } | ||||
1959 | |||||
1960 | my $warnings = $op->warnings; | ||||
1961 | my $warning_bits; | ||||
1962 | if ($warnings->isa("B::SPECIAL") && $$warnings == 4) { | ||||
1963 | $warning_bits = $warnings::Bits{"all"} & WARN_MASK; | ||||
1964 | } | ||||
1965 | elsif ($warnings->isa("B::SPECIAL") && $$warnings == 5) { | ||||
1966 | $warning_bits = $warnings::NONE; | ||||
1967 | } | ||||
1968 | elsif ($warnings->isa("B::SPECIAL")) { | ||||
1969 | $warning_bits = undef; | ||||
1970 | } | ||||
1971 | else { | ||||
1972 | $warning_bits = $warnings->PV & WARN_MASK; | ||||
1973 | } | ||||
1974 | |||||
1975 | if (defined ($warning_bits) and | ||||
1976 | !defined($self->{warnings}) || $self->{'warnings'} ne $warning_bits) { | ||||
1977 | push @text, | ||||
1978 | $self->declare_warnings($self->{'warnings'}, $warning_bits); | ||||
1979 | $self->{'warnings'} = $warning_bits; | ||||
1980 | } | ||||
1981 | |||||
1982 | my $hints = $] < 5.008009 ? $op->private : $op->hints; | ||||
1983 | my $old_hints = $self->{'hints'}; | ||||
1984 | if ($self->{'hints'} != $hints) { | ||||
1985 | push @text, $self->declare_hints($self->{'hints'}, $hints); | ||||
1986 | $self->{'hints'} = $hints; | ||||
1987 | } | ||||
1988 | |||||
1989 | my $newhh; | ||||
1990 | if ($] > 5.009) { | ||||
1991 | $newhh = $op->hints_hash->HASH; | ||||
1992 | } | ||||
1993 | |||||
1994 | if ($] >= 5.015006) { | ||||
1995 | # feature bundle hints | ||||
1996 | my $from = $old_hints & $feature::hint_mask; | ||||
1997 | my $to = $ hints & $feature::hint_mask; | ||||
1998 | if ($from != $to) { | ||||
1999 | if ($to == $feature::hint_mask) { | ||||
2000 | if ($self->{'hinthash'}) { | ||||
2001 | delete $self->{'hinthash'}{$_} | ||||
2002 | for grep /^feature_/, keys %{$self->{'hinthash'}}; | ||||
2003 | } | ||||
2004 | else { $self->{'hinthash'} = {} } | ||||
2005 | $self->{'hinthash'} | ||||
2006 | = _features_from_bundle($from, $self->{'hinthash'}); | ||||
2007 | } | ||||
2008 | else { | ||||
2009 | my $bundle = | ||||
2010 | $feature::hint_bundles[$to >> $feature::hint_shift]; | ||||
2011 | $bundle =~ s/(\d[13579])\z/$1+1/e; # 5.11 => 5.12 | ||||
2012 | push @text, | ||||
2013 | $self->keyword("no") . " feature ':all';\n", | ||||
2014 | $self->keyword("use") . " feature ':$bundle';\n"; | ||||
2015 | } | ||||
2016 | } | ||||
2017 | } | ||||
2018 | |||||
2019 | if ($] > 5.009) { | ||||
2020 | push @text, $self->declare_hinthash( | ||||
2021 | $self->{'hinthash'}, $newhh, | ||||
2022 | $self->{indent_size}, $self->{hints}, | ||||
2023 | ); | ||||
2024 | $self->{'hinthash'} = $newhh; | ||||
2025 | } | ||||
2026 | |||||
2027 | # This should go after of any branches that add statements, to | ||||
2028 | # increase the chances that it refers to the same line it did in | ||||
2029 | # the original program. | ||||
2030 | if ($self->{'linenums'} && $cx != .5) { # $cx == .5 means in a format | ||||
2031 | push @text, "\f#line " . $op->line . | ||||
2032 | ' "' . $op->file, qq'"\n'; | ||||
2033 | } | ||||
2034 | |||||
2035 | push @text, $op->label . ": " if $op->label; | ||||
2036 | |||||
2037 | return join("", @text); | ||||
2038 | } | ||||
2039 | |||||
2040 | sub declare_warnings { | ||||
2041 | my ($self, $from, $to) = @_; | ||||
2042 | if (($to & WARN_MASK) eq (warnings::bits("all") & WARN_MASK)) { | ||||
2043 | return $self->keyword("use") . " warnings;\n"; | ||||
2044 | } | ||||
2045 | elsif (($to & WARN_MASK) eq ("\0"x length($to) & WARN_MASK)) { | ||||
2046 | return $self->keyword("no") . " warnings;\n"; | ||||
2047 | } | ||||
2048 | return "BEGIN {\${^WARNING_BITS} = \"" | ||||
2049 | . join("", map { sprintf("\\x%02x", ord $_) } split "", $to) | ||||
2050 | . "\"}\n\cK"; | ||||
2051 | } | ||||
2052 | |||||
2053 | sub declare_hints { | ||||
2054 | my ($self, $from, $to) = @_; | ||||
2055 | my $use = $to & ~$from; | ||||
2056 | my $no = $from & ~$to; | ||||
2057 | my $decls = ""; | ||||
2058 | for my $pragma (hint_pragmas($use)) { | ||||
2059 | $decls .= $self->keyword("use") . " $pragma;\n"; | ||||
2060 | } | ||||
2061 | for my $pragma (hint_pragmas($no)) { | ||||
2062 | $decls .= $self->keyword("no") . " $pragma;\n"; | ||||
2063 | } | ||||
2064 | return $decls; | ||||
2065 | } | ||||
2066 | |||||
2067 | # Internal implementation hints that the core sets automatically, so don't need | ||||
2068 | # (or want) to be passed back to the user | ||||
2069 | 1 | 3µs | my %ignored_hints = ( | ||
2070 | 'open<' => 1, | ||||
2071 | 'open>' => 1, | ||||
2072 | ':' => 1, | ||||
2073 | 'strict/refs' => 1, | ||||
2074 | 'strict/subs' => 1, | ||||
2075 | 'strict/vars' => 1, | ||||
2076 | ); | ||||
2077 | |||||
2078 | 1 | 100ns | my %rev_feature; | ||
2079 | |||||
2080 | sub declare_hinthash { | ||||
2081 | my ($self, $from, $to, $indent, $hints) = @_; | ||||
2082 | my $doing_features = | ||||
2083 | ($hints & $feature::hint_mask) == $feature::hint_mask; | ||||
2084 | my @decls; | ||||
2085 | my @features; | ||||
2086 | my @unfeatures; # bugs? | ||||
2087 | for my $key (sort keys %$to) { | ||||
2088 | next if $ignored_hints{$key}; | ||||
2089 | my $is_feature = $key =~ /^feature_/ && $^V ge 5.15.6; | ||||
2090 | next if $is_feature and not $doing_features; | ||||
2091 | if (!exists $from->{$key} or $from->{$key} ne $to->{$key}) { | ||||
2092 | push(@features, $key), next if $is_feature; | ||||
2093 | push @decls, | ||||
2094 | qq(\$^H{) . single_delim("q", "'", $key, $self) . qq(} = ) | ||||
2095 | . ( | ||||
2096 | defined $to->{$key} | ||||
2097 | ? single_delim("q", "'", $to->{$key}, $self) | ||||
2098 | : 'undef' | ||||
2099 | ) | ||||
2100 | . qq(;); | ||||
2101 | } | ||||
2102 | } | ||||
2103 | for my $key (sort keys %$from) { | ||||
2104 | next if $ignored_hints{$key}; | ||||
2105 | my $is_feature = $key =~ /^feature_/ && $^V ge 5.15.6; | ||||
2106 | next if $is_feature and not $doing_features; | ||||
2107 | if (!exists $to->{$key}) { | ||||
2108 | push(@unfeatures, $key), next if $is_feature; | ||||
2109 | push @decls, qq(delete \$^H{'$key'};); | ||||
2110 | } | ||||
2111 | } | ||||
2112 | my @ret; | ||||
2113 | if (@features || @unfeatures) { | ||||
2114 | if (!%rev_feature) { %rev_feature = reverse %feature::feature } | ||||
2115 | } | ||||
2116 | if (@features) { | ||||
2117 | push @ret, $self->keyword("use") . " feature " | ||||
2118 | . join(", ", map "'$rev_feature{$_}'", @features) . ";\n"; | ||||
2119 | } | ||||
2120 | if (@unfeatures) { | ||||
2121 | push @ret, $self->keyword("no") . " feature " | ||||
2122 | . join(", ", map "'$rev_feature{$_}'", @unfeatures) | ||||
2123 | . ";\n"; | ||||
2124 | } | ||||
2125 | @decls and | ||||
2126 | push @ret, | ||||
2127 | join("\n" . (" " x $indent), "BEGIN {", @decls) . "\n}\n\cK"; | ||||
2128 | return @ret; | ||||
2129 | } | ||||
2130 | |||||
2131 | sub hint_pragmas { | ||||
2132 | my ($bits) = @_; | ||||
2133 | my (@pragmas, @strict); | ||||
2134 | push @pragmas, "integer" if $bits & 0x1; | ||||
2135 | for (sort keys %strict_bits) { | ||||
2136 | push @strict, "'$_'" if $bits & $strict_bits{$_}; | ||||
2137 | } | ||||
2138 | if (@strict == keys %strict_bits) { | ||||
2139 | push @pragmas, "strict"; | ||||
2140 | } | ||||
2141 | elsif (@strict) { | ||||
2142 | push @pragmas, "strict " . join ', ', @strict; | ||||
2143 | } | ||||
2144 | push @pragmas, "bytes" if $bits & 0x8; | ||||
2145 | return @pragmas; | ||||
2146 | } | ||||
2147 | |||||
2148 | sub pp_dbstate { pp_nextstate(@_) } | ||||
2149 | sub pp_setstate { pp_nextstate(@_) } | ||||
2150 | |||||
2151 | sub pp_unstack { return "" } # see also leaveloop | ||||
2152 | |||||
2153 | 1 | 3µs | my %feature_keywords = ( | ||
2154 | # keyword => 'feature', | ||||
2155 | state => 'state', | ||||
2156 | say => 'say', | ||||
2157 | given => 'switch', | ||||
2158 | when => 'switch', | ||||
2159 | default => 'switch', | ||||
2160 | break => 'switch', | ||||
2161 | evalbytes=>'evalbytes', | ||||
2162 | __SUB__ => '__SUB__', | ||||
2163 | fc => 'fc', | ||||
2164 | ); | ||||
2165 | |||||
2166 | # keywords that are strong and also have a prototype | ||||
2167 | # | ||||
2168 | 1 | 2µs | my %strong_proto_keywords = map { $_ => 1 } qw( | ||
2169 | pos | ||||
2170 | prototype | ||||
2171 | scalar | ||||
2172 | study | ||||
2173 | undef | ||||
2174 | ); | ||||
2175 | |||||
2176 | sub feature_enabled { | ||||
2177 | my($self,$name) = @_; | ||||
2178 | my $hh; | ||||
2179 | my $hints = $self->{hints} & $feature::hint_mask; | ||||
2180 | if ($hints && $hints != $feature::hint_mask) { | ||||
2181 | $hh = _features_from_bundle($hints); | ||||
2182 | } | ||||
2183 | elsif ($hints) { $hh = $self->{'hinthash'} } | ||||
2184 | return $hh && $hh->{"feature_$feature_keywords{$name}"} | ||||
2185 | } | ||||
2186 | |||||
2187 | sub keyword { | ||||
2188 | my $self = shift; | ||||
2189 | my $name = shift; | ||||
2190 | return $name if $name =~ /^CORE::/; # just in case | ||||
2191 | if (exists $feature_keywords{$name}) { | ||||
2192 | return "CORE::$name" if not $self->feature_enabled($name); | ||||
2193 | } | ||||
2194 | # This sub may be called for a program that has no nextstate ops. In | ||||
2195 | # that case we may have a lexical sub named no/use/sub in scope but | ||||
2196 | # but $self->lex_in_scope will return false because it depends on the | ||||
2197 | # current nextstate op. So we need this alternate method if there is | ||||
2198 | # no current cop. | ||||
2199 | if (!$self->{'curcop'}) { | ||||
2200 | $self->populate_curcvlex() if !defined $self->{'curcvlex'}; | ||||
2201 | return "CORE::$name" if exists $self->{'curcvlex'}{"m&$name"} | ||||
2202 | || exists $self->{'curcvlex'}{"o&$name"}; | ||||
2203 | } elsif ($self->lex_in_scope("&$name") | ||||
2204 | || $self->lex_in_scope("&$name", 1)) { | ||||
2205 | return "CORE::$name"; | ||||
2206 | } | ||||
2207 | if ($strong_proto_keywords{$name} | ||||
2208 | || ($name !~ /^(?:chom?p|do|exec|glob|s(?:elect|ystem))\z/ | ||||
2209 | && !defined eval{prototype "CORE::$name"}) | ||||
2210 | ) { return $name } | ||||
2211 | if ( | ||||
2212 | exists $self->{subs_declared}{$name} | ||||
2213 | or | ||||
2214 | exists &{"$self->{curstash}::$name"} | ||||
2215 | ) { | ||||
2216 | return "CORE::$name" | ||||
2217 | } | ||||
2218 | return $name; | ||||
2219 | } | ||||
2220 | |||||
2221 | sub baseop { | ||||
2222 | my $self = shift; | ||||
2223 | my($op, $cx, $name) = @_; | ||||
2224 | return $self->keyword($name); | ||||
2225 | } | ||||
2226 | |||||
2227 | sub pp_stub { "()" } | ||||
2228 | sub pp_wantarray { baseop(@_, "wantarray") } | ||||
2229 | sub pp_fork { baseop(@_, "fork") } | ||||
2230 | sub pp_wait { maybe_targmy(@_, \&baseop, "wait") } | ||||
2231 | sub pp_getppid { maybe_targmy(@_, \&baseop, "getppid") } | ||||
2232 | sub pp_time { maybe_targmy(@_, \&baseop, "time") } | ||||
2233 | sub pp_tms { baseop(@_, "times") } | ||||
2234 | sub pp_ghostent { baseop(@_, "gethostent") } | ||||
2235 | sub pp_gnetent { baseop(@_, "getnetent") } | ||||
2236 | sub pp_gprotoent { baseop(@_, "getprotoent") } | ||||
2237 | sub pp_gservent { baseop(@_, "getservent") } | ||||
2238 | sub pp_ehostent { baseop(@_, "endhostent") } | ||||
2239 | sub pp_enetent { baseop(@_, "endnetent") } | ||||
2240 | sub pp_eprotoent { baseop(@_, "endprotoent") } | ||||
2241 | sub pp_eservent { baseop(@_, "endservent") } | ||||
2242 | sub pp_gpwent { baseop(@_, "getpwent") } | ||||
2243 | sub pp_spwent { baseop(@_, "setpwent") } | ||||
2244 | sub pp_epwent { baseop(@_, "endpwent") } | ||||
2245 | sub pp_ggrent { baseop(@_, "getgrent") } | ||||
2246 | sub pp_sgrent { baseop(@_, "setgrent") } | ||||
2247 | sub pp_egrent { baseop(@_, "endgrent") } | ||||
2248 | sub pp_getlogin { baseop(@_, "getlogin") } | ||||
2249 | |||||
2250 | sub POSTFIX () { 1 } | ||||
2251 | |||||
2252 | # I couldn't think of a good short name, but this is the category of | ||||
2253 | # symbolic unary operators with interesting precedence | ||||
2254 | |||||
2255 | sub pfixop { | ||||
2256 | my $self = shift; | ||||
2257 | my($op, $cx, $name, $prec, $flags) = (@_, 0); | ||||
2258 | my $kid = $op->first; | ||||
2259 | $kid = $self->deparse($kid, $prec); | ||||
2260 | return $self->maybe_parens(($flags & POSTFIX) | ||||
2261 | ? "$kid$name" | ||||
2262 | # avoid confusion with filetests | ||||
2263 | : $name eq '-' | ||||
2264 | && $kid =~ /^[a-zA-Z](?!\w)/ | ||||
2265 | ? "$name($kid)" | ||||
2266 | : "$name$kid", | ||||
2267 | $cx, $prec); | ||||
2268 | } | ||||
2269 | |||||
2270 | sub pp_preinc { pfixop(@_, "++", 23) } | ||||
2271 | sub pp_predec { pfixop(@_, "--", 23) } | ||||
2272 | sub pp_postinc { maybe_targmy(@_, \&pfixop, "++", 23, POSTFIX) } | ||||
2273 | sub pp_postdec { maybe_targmy(@_, \&pfixop, "--", 23, POSTFIX) } | ||||
2274 | sub pp_i_preinc { pfixop(@_, "++", 23) } | ||||
2275 | sub pp_i_predec { pfixop(@_, "--", 23) } | ||||
2276 | sub pp_i_postinc { maybe_targmy(@_, \&pfixop, "++", 23, POSTFIX) } | ||||
2277 | sub pp_i_postdec { maybe_targmy(@_, \&pfixop, "--", 23, POSTFIX) } | ||||
2278 | sub pp_complement { maybe_targmy(@_, \&pfixop, "~", 21) } | ||||
2279 | 1 | 1µs | *pp_ncomplement = *pp_complement; | ||
2280 | sub pp_scomplement { maybe_targmy(@_, \&pfixop, "~.", 21) } | ||||
2281 | |||||
2282 | sub pp_negate { maybe_targmy(@_, \&real_negate) } | ||||
2283 | sub real_negate { | ||||
2284 | my $self = shift; | ||||
2285 | my($op, $cx) = @_; | ||||
2286 | if ($op->first->name =~ /^(i_)?negate$/) { | ||||
2287 | # avoid --$x | ||||
2288 | $self->pfixop($op, $cx, "-", 21.5); | ||||
2289 | } else { | ||||
2290 | $self->pfixop($op, $cx, "-", 21); | ||||
2291 | } | ||||
2292 | } | ||||
2293 | sub pp_i_negate { pp_negate(@_) } | ||||
2294 | |||||
2295 | sub pp_not { | ||||
2296 | my $self = shift; | ||||
2297 | my($op, $cx) = @_; | ||||
2298 | if ($cx <= 4) { | ||||
2299 | $self->listop($op, $cx, "not", $op->first); | ||||
2300 | } else { | ||||
2301 | $self->pfixop($op, $cx, "!", 21); | ||||
2302 | } | ||||
2303 | } | ||||
2304 | |||||
2305 | sub unop { | ||||
2306 | my $self = shift; | ||||
2307 | my($op, $cx, $name, $nollafr) = @_; | ||||
2308 | my $kid; | ||||
2309 | if ($op->flags & OPf_KIDS) { | ||||
2310 | $kid = $op->first; | ||||
2311 | if (not $name) { | ||||
2312 | # this deals with 'boolkeys' right now | ||||
2313 | return $self->deparse($kid,$cx); | ||||
2314 | } | ||||
2315 | my $builtinname = $name; | ||||
2316 | $builtinname =~ /^CORE::/ or $builtinname = "CORE::$name"; | ||||
2317 | if (defined prototype($builtinname) | ||||
2318 | && $builtinname ne 'CORE::readline' | ||||
2319 | && prototype($builtinname) =~ /^;?\*/ | ||||
2320 | && $kid->name eq "rv2gv") { | ||||
2321 | $kid = $kid->first; | ||||
2322 | } | ||||
2323 | |||||
2324 | if ($nollafr) { | ||||
2325 | if (($kid = $self->deparse($kid, 16)) !~ s/^\cS//) { | ||||
2326 | # require foo() is a syntax error. | ||||
2327 | $kid =~ /^(?!\d)\w/ and $kid = "($kid)"; | ||||
2328 | } | ||||
2329 | return $self->maybe_parens( | ||||
2330 | $self->keyword($name) . " $kid", $cx, 16 | ||||
2331 | ); | ||||
2332 | } | ||||
2333 | return $self->maybe_parens_unop($name, $kid, $cx); | ||||
2334 | } else { | ||||
2335 | return $self->maybe_parens( | ||||
2336 | $self->keyword($name) . ($op->flags & OPf_SPECIAL ? "()" : ""), | ||||
2337 | $cx, 16, | ||||
2338 | ); | ||||
2339 | } | ||||
2340 | } | ||||
2341 | |||||
2342 | sub pp_chop { maybe_targmy(@_, \&unop, "chop") } | ||||
2343 | sub pp_chomp { maybe_targmy(@_, \&unop, "chomp") } | ||||
2344 | sub pp_schop { maybe_targmy(@_, \&unop, "chop") } | ||||
2345 | sub pp_schomp { maybe_targmy(@_, \&unop, "chomp") } | ||||
2346 | sub pp_defined { unop(@_, "defined") } | ||||
2347 | sub pp_undef { unop(@_, "undef") } | ||||
2348 | sub pp_study { unop(@_, "study") } | ||||
2349 | sub pp_ref { unop(@_, "ref") } | ||||
2350 | sub pp_pos { maybe_local(@_, unop(@_, "pos")) } | ||||
2351 | |||||
2352 | sub pp_sin { maybe_targmy(@_, \&unop, "sin") } | ||||
2353 | sub pp_cos { maybe_targmy(@_, \&unop, "cos") } | ||||
2354 | sub pp_rand { maybe_targmy(@_, \&unop, "rand") } | ||||
2355 | sub pp_srand { unop(@_, "srand") } | ||||
2356 | sub pp_exp { maybe_targmy(@_, \&unop, "exp") } | ||||
2357 | sub pp_log { maybe_targmy(@_, \&unop, "log") } | ||||
2358 | sub pp_sqrt { maybe_targmy(@_, \&unop, "sqrt") } | ||||
2359 | sub pp_int { maybe_targmy(@_, \&unop, "int") } | ||||
2360 | sub pp_hex { maybe_targmy(@_, \&unop, "hex") } | ||||
2361 | sub pp_oct { maybe_targmy(@_, \&unop, "oct") } | ||||
2362 | sub pp_abs { maybe_targmy(@_, \&unop, "abs") } | ||||
2363 | |||||
2364 | sub pp_length { maybe_targmy(@_, \&unop, "length") } | ||||
2365 | sub pp_ord { maybe_targmy(@_, \&unop, "ord") } | ||||
2366 | sub pp_chr { maybe_targmy(@_, \&unop, "chr") } | ||||
2367 | |||||
2368 | sub pp_each { unop(@_, "each") } | ||||
2369 | sub pp_values { unop(@_, "values") } | ||||
2370 | sub pp_keys { unop(@_, "keys") } | ||||
2371 | 4 | 1.73ms | 2 | 27µs | # spent 16µs (6+10) within B::Deparse::BEGIN@2371 which was called:
# once (6µs+10µs) by YAML::XS::BEGIN@57 at line 2371 # spent 16µs making 1 call to B::Deparse::BEGIN@2371
# spent 10µs making 1 call to strict::unimport |
2372 | sub pp_boolkeys { | ||||
2373 | # no name because its an optimisation op that has no keyword | ||||
2374 | unop(@_,""); | ||||
2375 | } | ||||
2376 | sub pp_aeach { unop(@_, "each") } | ||||
2377 | sub pp_avalues { unop(@_, "values") } | ||||
2378 | sub pp_akeys { unop(@_, "keys") } | ||||
2379 | sub pp_pop { unop(@_, "pop") } | ||||
2380 | sub pp_shift { unop(@_, "shift") } | ||||
2381 | |||||
2382 | sub pp_caller { unop(@_, "caller") } | ||||
2383 | sub pp_reset { unop(@_, "reset") } | ||||
2384 | sub pp_exit { unop(@_, "exit") } | ||||
2385 | sub pp_prototype { unop(@_, "prototype") } | ||||
2386 | |||||
2387 | sub pp_close { unop(@_, "close") } | ||||
2388 | sub pp_fileno { unop(@_, "fileno") } | ||||
2389 | sub pp_umask { unop(@_, "umask") } | ||||
2390 | sub pp_untie { unop(@_, "untie") } | ||||
2391 | sub pp_tied { unop(@_, "tied") } | ||||
2392 | sub pp_dbmclose { unop(@_, "dbmclose") } | ||||
2393 | sub pp_getc { unop(@_, "getc") } | ||||
2394 | sub pp_eof { unop(@_, "eof") } | ||||
2395 | sub pp_tell { unop(@_, "tell") } | ||||
2396 | sub pp_getsockname { unop(@_, "getsockname") } | ||||
2397 | sub pp_getpeername { unop(@_, "getpeername") } | ||||
2398 | |||||
2399 | sub pp_chdir { | ||||
2400 | my ($self, $op, $cx) = @_; | ||||
2401 | if (($op->flags & (OPf_SPECIAL|OPf_KIDS)) == (OPf_SPECIAL|OPf_KIDS)) { | ||||
2402 | my $kw = $self->keyword("chdir"); | ||||
2403 | my $kid = $self->const_sv($op->first)->PV; | ||||
2404 | my $code = $kw | ||||
2405 | . ($cx >= 16 || $self->{'parens'} ? "($kid)" : " $kid"); | ||||
2406 | maybe_targmy(@_, sub { $_[3] }, $code); | ||||
2407 | } else { | ||||
2408 | maybe_targmy(@_, \&unop, "chdir") | ||||
2409 | } | ||||
2410 | } | ||||
2411 | |||||
2412 | sub pp_chroot { maybe_targmy(@_, \&unop, "chroot") } | ||||
2413 | sub pp_readlink { unop(@_, "readlink") } | ||||
2414 | sub pp_rmdir { maybe_targmy(@_, \&unop, "rmdir") } | ||||
2415 | sub pp_readdir { unop(@_, "readdir") } | ||||
2416 | sub pp_telldir { unop(@_, "telldir") } | ||||
2417 | sub pp_rewinddir { unop(@_, "rewinddir") } | ||||
2418 | sub pp_closedir { unop(@_, "closedir") } | ||||
2419 | sub pp_getpgrp { maybe_targmy(@_, \&unop, "getpgrp") } | ||||
2420 | sub pp_localtime { unop(@_, "localtime") } | ||||
2421 | sub pp_gmtime { unop(@_, "gmtime") } | ||||
2422 | sub pp_alarm { unop(@_, "alarm") } | ||||
2423 | sub pp_sleep { maybe_targmy(@_, \&unop, "sleep") } | ||||
2424 | |||||
2425 | sub pp_dofile { | ||||
2426 | my $code = unop(@_, "do", 1); # llafr does not apply | ||||
2427 | if ($code =~ s/^((?:CORE::)?do) \{/$1({/) { $code .= ')' } | ||||
2428 | $code; | ||||
2429 | } | ||||
2430 | sub pp_entereval { | ||||
2431 | unop( | ||||
2432 | @_, | ||||
2433 | $_[1]->private & OPpEVAL_BYTES ? 'evalbytes' : "eval" | ||||
2434 | ) | ||||
2435 | } | ||||
2436 | |||||
2437 | sub pp_ghbyname { unop(@_, "gethostbyname") } | ||||
2438 | sub pp_gnbyname { unop(@_, "getnetbyname") } | ||||
2439 | sub pp_gpbyname { unop(@_, "getprotobyname") } | ||||
2440 | sub pp_shostent { unop(@_, "sethostent") } | ||||
2441 | sub pp_snetent { unop(@_, "setnetent") } | ||||
2442 | sub pp_sprotoent { unop(@_, "setprotoent") } | ||||
2443 | sub pp_sservent { unop(@_, "setservent") } | ||||
2444 | sub pp_gpwnam { unop(@_, "getpwnam") } | ||||
2445 | sub pp_gpwuid { unop(@_, "getpwuid") } | ||||
2446 | sub pp_ggrnam { unop(@_, "getgrnam") } | ||||
2447 | sub pp_ggrgid { unop(@_, "getgrgid") } | ||||
2448 | |||||
2449 | sub pp_lock { unop(@_, "lock") } | ||||
2450 | |||||
2451 | sub pp_continue { unop(@_, "continue"); } | ||||
2452 | sub pp_break { unop(@_, "break"); } | ||||
2453 | |||||
2454 | sub givwhen { | ||||
2455 | my $self = shift; | ||||
2456 | my($op, $cx, $givwhen) = @_; | ||||
2457 | |||||
2458 | my $enterop = $op->first; | ||||
2459 | my ($head, $block); | ||||
2460 | if ($enterop->flags & OPf_SPECIAL) { | ||||
2461 | $head = $self->keyword("default"); | ||||
2462 | $block = $self->deparse($enterop->first, 0); | ||||
2463 | } | ||||
2464 | else { | ||||
2465 | my $cond = $enterop->first; | ||||
2466 | my $cond_str = $self->deparse($cond, 1); | ||||
2467 | $head = "$givwhen ($cond_str)"; | ||||
2468 | $block = $self->deparse($cond->sibling, 0); | ||||
2469 | } | ||||
2470 | |||||
2471 | return "$head {\n". | ||||
2472 | "\t$block\n". | ||||
2473 | "\b}\cK"; | ||||
2474 | } | ||||
2475 | |||||
2476 | sub pp_leavegiven { givwhen(@_, $_[0]->keyword("given")); } | ||||
2477 | sub pp_leavewhen { givwhen(@_, $_[0]->keyword("when")); } | ||||
2478 | |||||
2479 | sub pp_exists { | ||||
2480 | my $self = shift; | ||||
2481 | my($op, $cx) = @_; | ||||
2482 | my $arg; | ||||
2483 | my $name = $self->keyword("exists"); | ||||
2484 | if ($op->private & OPpEXISTS_SUB) { | ||||
2485 | # Checking for the existence of a subroutine | ||||
2486 | return $self->maybe_parens_func($name, | ||||
2487 | $self->pp_rv2cv($op->first, 16), $cx, 16); | ||||
2488 | } | ||||
2489 | if ($op->flags & OPf_SPECIAL) { | ||||
2490 | # Array element, not hash element | ||||
2491 | return $self->maybe_parens_func($name, | ||||
2492 | $self->pp_aelem($op->first, 16), $cx, 16); | ||||
2493 | } | ||||
2494 | return $self->maybe_parens_func($name, $self->pp_helem($op->first, 16), | ||||
2495 | $cx, 16); | ||||
2496 | } | ||||
2497 | |||||
2498 | sub pp_delete { | ||||
2499 | my $self = shift; | ||||
2500 | my($op, $cx) = @_; | ||||
2501 | my $arg; | ||||
2502 | my $name = $self->keyword("delete"); | ||||
2503 | if ($op->private & OPpSLICE) { | ||||
2504 | if ($op->flags & OPf_SPECIAL) { | ||||
2505 | # Deleting from an array, not a hash | ||||
2506 | return $self->maybe_parens_func($name, | ||||
2507 | $self->pp_aslice($op->first, 16), | ||||
2508 | $cx, 16); | ||||
2509 | } | ||||
2510 | return $self->maybe_parens_func($name, | ||||
2511 | $self->pp_hslice($op->first, 16), | ||||
2512 | $cx, 16); | ||||
2513 | } else { | ||||
2514 | if ($op->flags & OPf_SPECIAL) { | ||||
2515 | # Deleting from an array, not a hash | ||||
2516 | return $self->maybe_parens_func($name, | ||||
2517 | $self->pp_aelem($op->first, 16), | ||||
2518 | $cx, 16); | ||||
2519 | } | ||||
2520 | return $self->maybe_parens_func($name, | ||||
2521 | $self->pp_helem($op->first, 16), | ||||
2522 | $cx, 16); | ||||
2523 | } | ||||
2524 | } | ||||
2525 | |||||
2526 | sub pp_require { | ||||
2527 | my $self = shift; | ||||
2528 | my($op, $cx) = @_; | ||||
2529 | my $opname = $op->flags & OPf_SPECIAL ? 'CORE::require' : 'require'; | ||||
2530 | my $kid = $op->first; | ||||
2531 | if ($kid->name eq 'const') { | ||||
2532 | my $priv = $kid->private; | ||||
2533 | my $sv = $self->const_sv($kid); | ||||
2534 | my $arg; | ||||
2535 | if ($priv & OPpCONST_BARE) { | ||||
2536 | $arg = $sv->PV; | ||||
2537 | $arg =~ s[/][::]g; | ||||
2538 | $arg =~ s/\.pm//g; | ||||
2539 | } elsif ($priv & OPpCONST_NOVER) { | ||||
2540 | $opname = $self->keyword('no'); | ||||
2541 | $arg = $self->const($sv, 16); | ||||
2542 | } elsif ((my $tmp = $self->const($sv, 16)) =~ /^v/) { | ||||
2543 | $arg = $tmp; | ||||
2544 | } | ||||
2545 | if ($arg) { | ||||
2546 | return $self->maybe_parens("$opname $arg", $cx, 16); | ||||
2547 | } | ||||
2548 | } | ||||
2549 | $self->unop( | ||||
2550 | $op, $cx, | ||||
2551 | $opname, | ||||
2552 | 1, # llafr does not apply | ||||
2553 | ); | ||||
2554 | } | ||||
2555 | |||||
2556 | sub pp_scalar { | ||||
2557 | my $self = shift; | ||||
2558 | my($op, $cx) = @_; | ||||
2559 | my $kid = $op->first; | ||||
2560 | if (not null $kid->sibling) { | ||||
2561 | # XXX Was a here-doc | ||||
2562 | return $self->dquote($op); | ||||
2563 | } | ||||
2564 | $self->unop(@_, "scalar"); | ||||
2565 | } | ||||
2566 | |||||
2567 | |||||
2568 | sub padval { | ||||
2569 | my $self = shift; | ||||
2570 | my $targ = shift; | ||||
2571 | return $self->{'curcv'}->PADLIST->ARRAYelt(1)->ARRAYelt($targ); | ||||
2572 | } | ||||
2573 | |||||
2574 | sub anon_hash_or_list { | ||||
2575 | my $self = shift; | ||||
2576 | my($op, $cx) = @_; | ||||
2577 | |||||
2578 | my($pre, $post) = @{{"anonlist" => ["[","]"], | ||||
2579 | "anonhash" => ["{","}"]}->{$op->name}}; | ||||
2580 | my($expr, @exprs); | ||||
2581 | $op = $op->first->sibling; # skip pushmark | ||||
2582 | for (; !null($op); $op = $op->sibling) { | ||||
2583 | $expr = $self->deparse($op, 6); | ||||
2584 | push @exprs, $expr; | ||||
2585 | } | ||||
2586 | if ($pre eq "{" and $cx < 1) { | ||||
2587 | # Disambiguate that it's not a block | ||||
2588 | $pre = "+{"; | ||||
2589 | } | ||||
2590 | return $pre . join(", ", @exprs) . $post; | ||||
2591 | } | ||||
2592 | |||||
2593 | sub pp_anonlist { | ||||
2594 | my $self = shift; | ||||
2595 | my ($op, $cx) = @_; | ||||
2596 | if ($op->flags & OPf_SPECIAL) { | ||||
2597 | return $self->anon_hash_or_list($op, $cx); | ||||
2598 | } | ||||
2599 | warn "Unexpected op pp_" . $op->name() . " without OPf_SPECIAL"; | ||||
2600 | return 'XXX'; | ||||
2601 | } | ||||
2602 | |||||
2603 | 1 | 2µs | *pp_anonhash = \&pp_anonlist; | ||
2604 | |||||
2605 | sub pp_refgen { | ||||
2606 | my $self = shift; | ||||
2607 | my($op, $cx) = @_; | ||||
2608 | my $kid = $op->first; | ||||
2609 | if ($kid->name eq "null") { | ||||
2610 | my $anoncode = $kid = $kid->first; | ||||
2611 | if ($anoncode->name eq "anonconst") { | ||||
2612 | $anoncode = $anoncode->first->first->sibling; | ||||
2613 | } | ||||
2614 | if ($anoncode->name eq "anoncode" | ||||
2615 | or !null($anoncode = $kid->sibling) and | ||||
2616 | $anoncode->name eq "anoncode") { | ||||
2617 | return $self->e_anoncode({ code => $self->padval($anoncode->targ) }); | ||||
2618 | } elsif ($kid->name eq "pushmark") { | ||||
2619 | my $sib_name = $kid->sibling->name; | ||||
2620 | if ($sib_name eq 'entersub') { | ||||
2621 | my $text = $self->deparse($kid->sibling, 1); | ||||
2622 | # Always show parens for \(&func()), but only with -p otherwise | ||||
2623 | $text = "($text)" if $self->{'parens'} | ||||
2624 | or $kid->sibling->private & OPpENTERSUB_AMPER; | ||||
2625 | return "\\$text"; | ||||
2626 | } | ||||
2627 | } | ||||
2628 | } | ||||
2629 | local $self->{'in_refgen'} = 1; | ||||
2630 | $self->pfixop($op, $cx, "\\", 20); | ||||
2631 | } | ||||
2632 | |||||
2633 | sub e_anoncode { | ||||
2634 | my ($self, $info) = @_; | ||||
2635 | my $text = $self->deparse_sub($info->{code}); | ||||
2636 | return $self->keyword("sub") . " $text"; | ||||
2637 | } | ||||
2638 | |||||
2639 | sub pp_srefgen { pp_refgen(@_) } | ||||
2640 | |||||
2641 | sub pp_readline { | ||||
2642 | my $self = shift; | ||||
2643 | my($op, $cx) = @_; | ||||
2644 | my $kid = $op->first; | ||||
2645 | if (is_scalar($kid)) { | ||||
2646 | my $kid_deparsed = $self->deparse($kid, 1); | ||||
2647 | return '<<>>' if $op->flags & OPf_SPECIAL and $kid_deparsed eq 'ARGV'; | ||||
2648 | return "<$kid_deparsed>"; | ||||
2649 | } | ||||
2650 | return $self->unop($op, $cx, "readline"); | ||||
2651 | } | ||||
2652 | |||||
2653 | sub pp_rcatline { | ||||
2654 | my $self = shift; | ||||
2655 | my($op) = @_; | ||||
2656 | return "<" . $self->gv_name($self->gv_or_padgv($op)) . ">"; | ||||
2657 | } | ||||
2658 | |||||
2659 | # Unary operators that can occur as pseudo-listops inside double quotes | ||||
2660 | sub dq_unop { | ||||
2661 | my $self = shift; | ||||
2662 | my($op, $cx, $name, $prec, $flags) = (@_, 0, 0); | ||||
2663 | my $kid; | ||||
2664 | if ($op->flags & OPf_KIDS) { | ||||
2665 | $kid = $op->first; | ||||
2666 | # If there's more than one kid, the first is an ex-pushmark. | ||||
2667 | $kid = $kid->sibling if not null $kid->sibling; | ||||
2668 | return $self->maybe_parens_unop($name, $kid, $cx); | ||||
2669 | } else { | ||||
2670 | return $name . ($op->flags & OPf_SPECIAL ? "()" : ""); | ||||
2671 | } | ||||
2672 | } | ||||
2673 | |||||
2674 | sub pp_ucfirst { dq_unop(@_, "ucfirst") } | ||||
2675 | sub pp_lcfirst { dq_unop(@_, "lcfirst") } | ||||
2676 | sub pp_uc { dq_unop(@_, "uc") } | ||||
2677 | sub pp_lc { dq_unop(@_, "lc") } | ||||
2678 | sub pp_quotemeta { maybe_targmy(@_, \&dq_unop, "quotemeta") } | ||||
2679 | sub pp_fc { dq_unop(@_, "fc") } | ||||
2680 | |||||
2681 | sub loopex { | ||||
2682 | my $self = shift; | ||||
2683 | my ($op, $cx, $name) = @_; | ||||
2684 | if (class($op) eq "PVOP") { | ||||
2685 | $name .= " " . $op->pv; | ||||
2686 | } elsif (class($op) eq "OP") { | ||||
2687 | # no-op | ||||
2688 | } elsif (class($op) eq "UNOP") { | ||||
2689 | (my $kid = $self->deparse($op->first, 7)) =~ s/^\cS//; | ||||
2690 | # last foo() is a syntax error. | ||||
2691 | $kid =~ /^(?!\d)\w/ and $kid = "($kid)"; | ||||
2692 | $name .= " $kid"; | ||||
2693 | } | ||||
2694 | return $self->maybe_parens($name, $cx, 7); | ||||
2695 | } | ||||
2696 | |||||
2697 | sub pp_last { loopex(@_, "last") } | ||||
2698 | sub pp_next { loopex(@_, "next") } | ||||
2699 | sub pp_redo { loopex(@_, "redo") } | ||||
2700 | sub pp_goto { loopex(@_, "goto") } | ||||
2701 | sub pp_dump { loopex(@_, "CORE::dump") } | ||||
2702 | |||||
2703 | sub ftst { | ||||
2704 | my $self = shift; | ||||
2705 | my($op, $cx, $name) = @_; | ||||
2706 | if (class($op) eq "UNOP") { | ||||
2707 | # Genuine '-X' filetests are exempt from the LLAFR, but not | ||||
2708 | # l?stat() | ||||
2709 | if ($name =~ /^-/) { | ||||
2710 | (my $kid = $self->deparse($op->first, 16)) =~ s/^\cS//; | ||||
2711 | return $self->maybe_parens("$name $kid", $cx, 16); | ||||
2712 | } | ||||
2713 | return $self->maybe_parens_unop($name, $op->first, $cx); | ||||
2714 | } elsif (class($op) =~ /^(SV|PAD)OP$/) { | ||||
2715 | return $self->maybe_parens_func($name, $self->pp_gv($op, 1), $cx, 16); | ||||
2716 | } else { # I don't think baseop filetests ever survive ck_ftst, but... | ||||
2717 | return $name; | ||||
2718 | } | ||||
2719 | } | ||||
2720 | |||||
2721 | sub pp_lstat { ftst(@_, "lstat") } | ||||
2722 | sub pp_stat { ftst(@_, "stat") } | ||||
2723 | sub pp_ftrread { ftst(@_, "-R") } | ||||
2724 | sub pp_ftrwrite { ftst(@_, "-W") } | ||||
2725 | sub pp_ftrexec { ftst(@_, "-X") } | ||||
2726 | sub pp_fteread { ftst(@_, "-r") } | ||||
2727 | sub pp_ftewrite { ftst(@_, "-w") } | ||||
2728 | sub pp_fteexec { ftst(@_, "-x") } | ||||
2729 | sub pp_ftis { ftst(@_, "-e") } | ||||
2730 | sub pp_fteowned { ftst(@_, "-O") } | ||||
2731 | sub pp_ftrowned { ftst(@_, "-o") } | ||||
2732 | sub pp_ftzero { ftst(@_, "-z") } | ||||
2733 | sub pp_ftsize { ftst(@_, "-s") } | ||||
2734 | sub pp_ftmtime { ftst(@_, "-M") } | ||||
2735 | sub pp_ftatime { ftst(@_, "-A") } | ||||
2736 | sub pp_ftctime { ftst(@_, "-C") } | ||||
2737 | sub pp_ftsock { ftst(@_, "-S") } | ||||
2738 | sub pp_ftchr { ftst(@_, "-c") } | ||||
2739 | sub pp_ftblk { ftst(@_, "-b") } | ||||
2740 | sub pp_ftfile { ftst(@_, "-f") } | ||||
2741 | sub pp_ftdir { ftst(@_, "-d") } | ||||
2742 | sub pp_ftpipe { ftst(@_, "-p") } | ||||
2743 | sub pp_ftlink { ftst(@_, "-l") } | ||||
2744 | sub pp_ftsuid { ftst(@_, "-u") } | ||||
2745 | sub pp_ftsgid { ftst(@_, "-g") } | ||||
2746 | sub pp_ftsvtx { ftst(@_, "-k") } | ||||
2747 | sub pp_fttty { ftst(@_, "-t") } | ||||
2748 | sub pp_fttext { ftst(@_, "-T") } | ||||
2749 | sub pp_ftbinary { ftst(@_, "-B") } | ||||
2750 | |||||
2751 | sub SWAP_CHILDREN () { 1 } | ||||
2752 | sub ASSIGN () { 2 } # has OP= variant | ||||
2753 | sub LIST_CONTEXT () { 4 } # Assignment is in list context | ||||
2754 | |||||
2755 | 1 | 200ns | my(%left, %right); | ||
2756 | |||||
2757 | sub assoc_class { | ||||
2758 | my $op = shift; | ||||
2759 | my $name = $op->name; | ||||
2760 | if ($name eq "concat" and $op->first->name eq "concat") { | ||||
2761 | # avoid spurious '=' -- see comment in pp_concat | ||||
2762 | return "concat"; | ||||
2763 | } | ||||
2764 | if ($name eq "null" and class($op) eq "UNOP" | ||||
2765 | and $op->first->name =~ /^(and|x?or)$/ | ||||
2766 | and null $op->first->sibling) | ||||
2767 | { | ||||
2768 | # Like all conditional constructs, OP_ANDs and OP_ORs are topped | ||||
2769 | # with a null that's used as the common end point of the two | ||||
2770 | # flows of control. For precedence purposes, ignore it. | ||||
2771 | # (COND_EXPRs have these too, but we don't bother with | ||||
2772 | # their associativity). | ||||
2773 | return assoc_class($op->first); | ||||
2774 | } | ||||
2775 | return $name . ($op->flags & OPf_STACKED ? "=" : ""); | ||||
2776 | } | ||||
2777 | |||||
2778 | # Left associative operators, like '+', for which | ||||
2779 | # $a + $b + $c is equivalent to ($a + $b) + $c | ||||
2780 | |||||
2781 | # spent 12µs within B::Deparse::BEGIN@2781 which was called:
# once (12µs+0s) by YAML::XS::BEGIN@57 at line 2797 | ||||
2782 | 1 | 15µs | %left = ('multiply' => 19, 'i_multiply' => 19, | ||
2783 | 'divide' => 19, 'i_divide' => 19, | ||||
2784 | 'modulo' => 19, 'i_modulo' => 19, | ||||
2785 | 'repeat' => 19, | ||||
2786 | 'add' => 18, 'i_add' => 18, | ||||
2787 | 'subtract' => 18, 'i_subtract' => 18, | ||||
2788 | 'concat' => 18, | ||||
2789 | 'left_shift' => 17, 'right_shift' => 17, | ||||
2790 | 'bit_and' => 13, 'nbit_and' => 13, 'sbit_and' => 13, | ||||
2791 | 'bit_or' => 12, 'bit_xor' => 12, | ||||
2792 | 'sbit_or' => 12, 'sbit_xor' => 12, | ||||
2793 | 'nbit_or' => 12, 'nbit_xor' => 12, | ||||
2794 | 'and' => 3, | ||||
2795 | 'or' => 2, 'xor' => 2, | ||||
2796 | ); | ||||
2797 | 1 | 77µs | 1 | 12µs | } # spent 12µs making 1 call to B::Deparse::BEGIN@2781 |
2798 | |||||
2799 | sub deparse_binop_left { | ||||
2800 | my $self = shift; | ||||
2801 | my($op, $left, $prec) = @_; | ||||
2802 | if ($left{assoc_class($op)} && $left{assoc_class($left)} | ||||
2803 | and $left{assoc_class($op)} == $left{assoc_class($left)}) | ||||
2804 | { | ||||
2805 | return $self->deparse($left, $prec - .00001); | ||||
2806 | } else { | ||||
2807 | return $self->deparse($left, $prec); | ||||
2808 | } | ||||
2809 | } | ||||
2810 | |||||
2811 | # Right associative operators, like '=', for which | ||||
2812 | # $a = $b = $c is equivalent to $a = ($b = $c) | ||||
2813 | |||||
2814 | # spent 13µs within B::Deparse::BEGIN@2814 which was called:
# once (13µs+0s) by YAML::XS::BEGIN@57 at line 2831 | ||||
2815 | 1 | 13µs | %right = ('pow' => 22, | ||
2816 | 'sassign=' => 7, 'aassign=' => 7, | ||||
2817 | 'multiply=' => 7, 'i_multiply=' => 7, | ||||
2818 | 'divide=' => 7, 'i_divide=' => 7, | ||||
2819 | 'modulo=' => 7, 'i_modulo=' => 7, | ||||
2820 | 'repeat=' => 7, 'refassign' => 7, 'refassign=' => 7, | ||||
2821 | 'add=' => 7, 'i_add=' => 7, | ||||
2822 | 'subtract=' => 7, 'i_subtract=' => 7, | ||||
2823 | 'concat=' => 7, | ||||
2824 | 'left_shift=' => 7, 'right_shift=' => 7, | ||||
2825 | 'bit_and=' => 7, 'sbit_and=' => 7, 'nbit_and=' => 7, | ||||
2826 | 'nbit_or=' => 7, 'nbit_xor=' => 7, | ||||
2827 | 'sbit_or=' => 7, 'sbit_xor=' => 7, | ||||
2828 | 'andassign' => 7, | ||||
2829 | 'orassign' => 7, | ||||
2830 | ); | ||||
2831 | 1 | 2.37ms | 1 | 13µs | } # spent 13µs making 1 call to B::Deparse::BEGIN@2814 |
2832 | |||||
2833 | sub deparse_binop_right { | ||||
2834 | my $self = shift; | ||||
2835 | my($op, $right, $prec) = @_; | ||||
2836 | if ($right{assoc_class($op)} && $right{assoc_class($right)} | ||||
2837 | and $right{assoc_class($op)} == $right{assoc_class($right)}) | ||||
2838 | { | ||||
2839 | return $self->deparse($right, $prec - .00001); | ||||
2840 | } else { | ||||
2841 | return $self->deparse($right, $prec); | ||||
2842 | } | ||||
2843 | } | ||||
2844 | |||||
2845 | sub binop { | ||||
2846 | my $self = shift; | ||||
2847 | my ($op, $cx, $opname, $prec, $flags) = (@_, 0); | ||||
2848 | my $left = $op->first; | ||||
2849 | my $right = $op->last; | ||||
2850 | my $eq = ""; | ||||
2851 | if ($op->flags & OPf_STACKED && $flags & ASSIGN) { | ||||
2852 | $eq = "="; | ||||
2853 | $prec = 7; | ||||
2854 | } | ||||
2855 | if ($flags & SWAP_CHILDREN) { | ||||
2856 | ($left, $right) = ($right, $left); | ||||
2857 | } | ||||
2858 | my $leftop = $left; | ||||
2859 | $left = $self->deparse_binop_left($op, $left, $prec); | ||||
2860 | $left = "($left)" if $flags & LIST_CONTEXT | ||||
2861 | and $left !~ /^(my|our|local|)[\@\(]/ | ||||
2862 | || do { | ||||
2863 | # Parenthesize if the left argument is a | ||||
2864 | # lone repeat op. | ||||
2865 | my $left = $leftop->first->sibling; | ||||
2866 | $left->name eq 'repeat' | ||||
2867 | && null($left->sibling); | ||||
2868 | }; | ||||
2869 | $right = $self->deparse_binop_right($op, $right, $prec); | ||||
2870 | return $self->maybe_parens("$left $opname$eq $right", $cx, $prec); | ||||
2871 | } | ||||
2872 | |||||
2873 | sub pp_add { maybe_targmy(@_, \&binop, "+", 18, ASSIGN) } | ||||
2874 | sub pp_multiply { maybe_targmy(@_, \&binop, "*", 19, ASSIGN) } | ||||
2875 | sub pp_subtract { maybe_targmy(@_, \&binop, "-",18, ASSIGN) } | ||||
2876 | sub pp_divide { maybe_targmy(@_, \&binop, "/", 19, ASSIGN) } | ||||
2877 | sub pp_modulo { maybe_targmy(@_, \&binop, "%", 19, ASSIGN) } | ||||
2878 | sub pp_i_add { maybe_targmy(@_, \&binop, "+", 18, ASSIGN) } | ||||
2879 | sub pp_i_multiply { maybe_targmy(@_, \&binop, "*", 19, ASSIGN) } | ||||
2880 | sub pp_i_subtract { maybe_targmy(@_, \&binop, "-", 18, ASSIGN) } | ||||
2881 | sub pp_i_divide { maybe_targmy(@_, \&binop, "/", 19, ASSIGN) } | ||||
2882 | sub pp_i_modulo { maybe_targmy(@_, \&binop, "%", 19, ASSIGN) } | ||||
2883 | sub pp_pow { maybe_targmy(@_, \&binop, "**", 22, ASSIGN) } | ||||
2884 | |||||
2885 | sub pp_left_shift { maybe_targmy(@_, \&binop, "<<", 17, ASSIGN) } | ||||
2886 | sub pp_right_shift { maybe_targmy(@_, \&binop, ">>", 17, ASSIGN) } | ||||
2887 | sub pp_bit_and { maybe_targmy(@_, \&binop, "&", 13, ASSIGN) } | ||||
2888 | sub pp_bit_or { maybe_targmy(@_, \&binop, "|", 12, ASSIGN) } | ||||
2889 | sub pp_bit_xor { maybe_targmy(@_, \&binop, "^", 12, ASSIGN) } | ||||
2890 | 1 | 400ns | *pp_nbit_and = *pp_bit_and; | ||
2891 | 1 | 400ns | *pp_nbit_or = *pp_bit_or; | ||
2892 | 1 | 400ns | *pp_nbit_xor = *pp_bit_xor; | ||
2893 | sub pp_sbit_and { maybe_targmy(@_, \&binop, "&.", 13, ASSIGN) } | ||||
2894 | sub pp_sbit_or { maybe_targmy(@_, \&binop, "|.", 12, ASSIGN) } | ||||
2895 | sub pp_sbit_xor { maybe_targmy(@_, \&binop, "^.", 12, ASSIGN) } | ||||
2896 | |||||
2897 | sub pp_eq { binop(@_, "==", 14) } | ||||
2898 | sub pp_ne { binop(@_, "!=", 14) } | ||||
2899 | sub pp_lt { binop(@_, "<", 15) } | ||||
2900 | sub pp_gt { binop(@_, ">", 15) } | ||||
2901 | sub pp_ge { binop(@_, ">=", 15) } | ||||
2902 | sub pp_le { binop(@_, "<=", 15) } | ||||
2903 | sub pp_ncmp { binop(@_, "<=>", 14) } | ||||
2904 | sub pp_i_eq { binop(@_, "==", 14) } | ||||
2905 | sub pp_i_ne { binop(@_, "!=", 14) } | ||||
2906 | sub pp_i_lt { binop(@_, "<", 15) } | ||||
2907 | sub pp_i_gt { binop(@_, ">", 15) } | ||||
2908 | sub pp_i_ge { binop(@_, ">=", 15) } | ||||
2909 | sub pp_i_le { binop(@_, "<=", 15) } | ||||
2910 | sub pp_i_ncmp { maybe_targmy(@_, \&binop, "<=>", 14) } | ||||
2911 | |||||
2912 | sub pp_seq { binop(@_, "eq", 14) } | ||||
2913 | sub pp_sne { binop(@_, "ne", 14) } | ||||
2914 | sub pp_slt { binop(@_, "lt", 15) } | ||||
2915 | sub pp_sgt { binop(@_, "gt", 15) } | ||||
2916 | sub pp_sge { binop(@_, "ge", 15) } | ||||
2917 | sub pp_sle { binop(@_, "le", 15) } | ||||
2918 | sub pp_scmp { maybe_targmy(@_, \&binop, "cmp", 14) } | ||||
2919 | |||||
2920 | sub pp_sassign { binop(@_, "=", 7, SWAP_CHILDREN) } | ||||
2921 | sub pp_aassign { binop(@_, "=", 7, SWAP_CHILDREN | LIST_CONTEXT) } | ||||
2922 | |||||
2923 | sub pp_smartmatch { | ||||
2924 | my ($self, $op, $cx) = @_; | ||||
2925 | if ($op->flags & OPf_SPECIAL) { | ||||
2926 | return $self->deparse($op->last, $cx); | ||||
2927 | } | ||||
2928 | else { | ||||
2929 | binop(@_, "~~", 14); | ||||
2930 | } | ||||
2931 | } | ||||
2932 | |||||
2933 | # '.' is special because concats-of-concats are optimized to save copying | ||||
2934 | # by making all but the first concat stacked. The effect is as if the | ||||
2935 | # programmer had written '($a . $b) .= $c', except legal. | ||||
2936 | sub pp_concat { maybe_targmy(@_, \&real_concat) } | ||||
2937 | sub real_concat { | ||||
2938 | my $self = shift; | ||||
2939 | my($op, $cx) = @_; | ||||
2940 | my $left = $op->first; | ||||
2941 | my $right = $op->last; | ||||
2942 | my $eq = ""; | ||||
2943 | my $prec = 18; | ||||
2944 | if ($op->flags & OPf_STACKED and $op->first->name ne "concat") { | ||||
2945 | $eq = "="; | ||||
2946 | $prec = 7; | ||||
2947 | } | ||||
2948 | $left = $self->deparse_binop_left($op, $left, $prec); | ||||
2949 | $right = $self->deparse_binop_right($op, $right, $prec); | ||||
2950 | return $self->maybe_parens("$left .$eq $right", $cx, $prec); | ||||
2951 | } | ||||
2952 | |||||
2953 | sub pp_repeat { maybe_targmy(@_, \&repeat) } | ||||
2954 | |||||
2955 | # 'x' is weird when the left arg is a list | ||||
2956 | sub repeat { | ||||
2957 | my $self = shift; | ||||
2958 | my($op, $cx) = @_; | ||||
2959 | my $left = $op->first; | ||||
2960 | my $right = $op->last; | ||||
2961 | my $eq = ""; | ||||
2962 | my $prec = 19; | ||||
2963 | if ($op->flags & OPf_STACKED) { | ||||
2964 | $eq = "="; | ||||
2965 | $prec = 7; | ||||
2966 | } | ||||
2967 | if (null($right)) { # list repeat; count is inside left-side ex-list | ||||
2968 | # in 5.21.5 and earlier | ||||
2969 | my $kid = $left->first->sibling; # skip pushmark | ||||
2970 | my @exprs; | ||||
2971 | for (; !null($kid->sibling); $kid = $kid->sibling) { | ||||
2972 | push @exprs, $self->deparse($kid, 6); | ||||
2973 | } | ||||
2974 | $right = $kid; | ||||
2975 | $left = "(" . join(", ", @exprs). ")"; | ||||
2976 | } else { | ||||
2977 | my $dolist = $op->private & OPpREPEAT_DOLIST; | ||||
2978 | $left = $self->deparse_binop_left($op, $left, $dolist ? 1 : $prec); | ||||
2979 | if ($dolist) { | ||||
2980 | $left = "($left)"; | ||||
2981 | } | ||||
2982 | } | ||||
2983 | $right = $self->deparse_binop_right($op, $right, $prec); | ||||
2984 | return $self->maybe_parens("$left x$eq $right", $cx, $prec); | ||||
2985 | } | ||||
2986 | |||||
2987 | sub range { | ||||
2988 | my $self = shift; | ||||
2989 | my ($op, $cx, $type) = @_; | ||||
2990 | my $left = $op->first; | ||||
2991 | my $right = $left->sibling; | ||||
2992 | $left = $self->deparse($left, 9); | ||||
2993 | $right = $self->deparse($right, 9); | ||||
2994 | return $self->maybe_parens("$left $type $right", $cx, 9); | ||||
2995 | } | ||||
2996 | |||||
2997 | sub pp_flop { | ||||
2998 | my $self = shift; | ||||
2999 | my($op, $cx) = @_; | ||||
3000 | my $flip = $op->first; | ||||
3001 | my $type = ($flip->flags & OPf_SPECIAL) ? "..." : ".."; | ||||
3002 | return $self->range($flip->first, $cx, $type); | ||||
3003 | } | ||||
3004 | |||||
3005 | # one-line while/until is handled in pp_leave | ||||
3006 | |||||
3007 | sub logop { | ||||
3008 | my $self = shift; | ||||
3009 | my ($op, $cx, $lowop, $lowprec, $highop, $highprec, $blockname) = @_; | ||||
3010 | my $left = $op->first; | ||||
3011 | my $right = $op->first->sibling; | ||||
3012 | $blockname &&= $self->keyword($blockname); | ||||
3013 | if ($cx < 1 and is_scope($right) and $blockname | ||||
3014 | and $self->{'expand'} < 7) | ||||
3015 | { # if ($a) {$b} | ||||
3016 | $left = $self->deparse($left, 1); | ||||
3017 | $right = $self->deparse($right, 0); | ||||
3018 | return "$blockname ($left) {\n\t$right\n\b}\cK"; | ||||
3019 | } elsif ($cx < 1 and $blockname and not $self->{'parens'} | ||||
3020 | and $self->{'expand'} < 7) { # $b if $a | ||||
3021 | $right = $self->deparse($right, 1); | ||||
3022 | $left = $self->deparse($left, 1); | ||||
3023 | return "$right $blockname $left"; | ||||
3024 | } elsif ($cx > $lowprec and $highop) { # $a && $b | ||||
3025 | $left = $self->deparse_binop_left($op, $left, $highprec); | ||||
3026 | $right = $self->deparse_binop_right($op, $right, $highprec); | ||||
3027 | return $self->maybe_parens("$left $highop $right", $cx, $highprec); | ||||
3028 | } else { # $a and $b | ||||
3029 | $left = $self->deparse_binop_left($op, $left, $lowprec); | ||||
3030 | $right = $self->deparse_binop_right($op, $right, $lowprec); | ||||
3031 | return $self->maybe_parens("$left $lowop $right", $cx, $lowprec); | ||||
3032 | } | ||||
3033 | } | ||||
3034 | |||||
3035 | sub pp_and { logop(@_, "and", 3, "&&", 11, "if") } | ||||
3036 | sub pp_or { logop(@_, "or", 2, "||", 10, "unless") } | ||||
3037 | sub pp_dor { logop(@_, "//", 10) } | ||||
3038 | |||||
3039 | # xor is syntactically a logop, but it's really a binop (contrary to | ||||
3040 | # old versions of opcode.pl). Syntax is what matters here. | ||||
3041 | sub pp_xor { logop(@_, "xor", 2, "", 0, "") } | ||||
3042 | |||||
3043 | sub logassignop { | ||||
3044 | my $self = shift; | ||||
3045 | my ($op, $cx, $opname) = @_; | ||||
3046 | my $left = $op->first; | ||||
3047 | my $right = $op->first->sibling->first; # skip sassign | ||||
3048 | $left = $self->deparse($left, 7); | ||||
3049 | $right = $self->deparse($right, 7); | ||||
3050 | return $self->maybe_parens("$left $opname $right", $cx, 7); | ||||
3051 | } | ||||
3052 | |||||
3053 | sub pp_andassign { logassignop(@_, "&&=") } | ||||
3054 | sub pp_orassign { logassignop(@_, "||=") } | ||||
3055 | sub pp_dorassign { logassignop(@_, "//=") } | ||||
3056 | |||||
3057 | sub rv2gv_or_string { | ||||
3058 | my($self,$op) = @_; | ||||
3059 | if ($op->name eq "gv") { # could be open("open") or open("###") | ||||
3060 | my($name,$quoted) = | ||||
3061 | $self->stash_variable_name("", $self->gv_or_padgv($op)); | ||||
3062 | $quoted ? $name : "*$name"; | ||||
3063 | } | ||||
3064 | else { | ||||
3065 | $self->deparse($op, 6); | ||||
3066 | } | ||||
3067 | } | ||||
3068 | |||||
3069 | sub listop { | ||||
3070 | my $self = shift; | ||||
3071 | my($op, $cx, $name, $kid, $nollafr) = @_; | ||||
3072 | my(@exprs); | ||||
3073 | my $parens = ($cx >= 5) || $self->{'parens'}; | ||||
3074 | $kid ||= $op->first->sibling; | ||||
3075 | # If there are no arguments, add final parentheses (or parenthesize the | ||||
3076 | # whole thing if the llafr does not apply) to account for cases like | ||||
3077 | # (return)+1 or setpgrp()+1. When the llafr does not apply, we use a | ||||
3078 | # precedence of 6 (< comma), as "return, 1" does not need parentheses. | ||||
3079 | if (null $kid) { | ||||
3080 | return $nollafr | ||||
3081 | ? $self->maybe_parens($self->keyword($name), $cx, 7) | ||||
3082 | : $self->keyword($name) . '()' x (7 < $cx); | ||||
3083 | } | ||||
3084 | my $first; | ||||
3085 | my $fullname = $self->keyword($name); | ||||
3086 | my $proto = prototype("CORE::$name"); | ||||
3087 | if ( | ||||
3088 | ( (defined $proto && $proto =~ /^;?\*/) | ||||
3089 | || $name eq 'select' # select(F) doesn't have a proto | ||||
3090 | ) | ||||
3091 | && $kid->name eq "rv2gv" | ||||
3092 | && !($kid->private & OPpLVAL_INTRO) | ||||
3093 | ) { | ||||
3094 | $first = $self->rv2gv_or_string($kid->first); | ||||
3095 | } | ||||
3096 | else { | ||||
3097 | $first = $self->deparse($kid, 6); | ||||
3098 | } | ||||
3099 | if ($name eq "chmod" && $first =~ /^\d+$/) { | ||||
3100 | $first = sprintf("%#o", $first); | ||||
3101 | } | ||||
3102 | $first = "+$first" | ||||
3103 | if not $parens and not $nollafr and substr($first, 0, 1) eq "("; | ||||
3104 | push @exprs, $first; | ||||
3105 | $kid = $kid->sibling; | ||||
3106 | if (defined $proto && $proto =~ /^\*\*/ && $kid->name eq "rv2gv" | ||||
3107 | && !($kid->private & OPpLVAL_INTRO)) { | ||||
3108 | push @exprs, $first = $self->rv2gv_or_string($kid->first); | ||||
3109 | $kid = $kid->sibling; | ||||
3110 | } | ||||
3111 | for (; !null($kid); $kid = $kid->sibling) { | ||||
3112 | push @exprs, $self->deparse($kid, 6); | ||||
3113 | } | ||||
3114 | if ($name eq "reverse" && ($op->private & OPpREVERSE_INPLACE)) { | ||||
3115 | return "$exprs[0] = $fullname" | ||||
3116 | . ($parens ? "($exprs[0])" : " $exprs[0]"); | ||||
3117 | } | ||||
3118 | |||||
3119 | if ($parens && $nollafr) { | ||||
3120 | return "($fullname " . join(", ", @exprs) . ")"; | ||||
3121 | } elsif ($parens) { | ||||
3122 | return "$fullname(" . join(", ", @exprs) . ")"; | ||||
3123 | } else { | ||||
3124 | return "$fullname " . join(", ", @exprs); | ||||
3125 | } | ||||
3126 | } | ||||
3127 | |||||
3128 | sub pp_bless { listop(@_, "bless") } | ||||
3129 | sub pp_atan2 { maybe_targmy(@_, \&listop, "atan2") } | ||||
3130 | sub pp_substr { | ||||
3131 | my ($self,$op,$cx) = @_; | ||||
3132 | if ($op->private & OPpSUBSTR_REPL_FIRST) { | ||||
3133 | return | ||||
3134 | listop($self, $op, 7, "substr", $op->first->sibling->sibling) | ||||
3135 | . " = " | ||||
3136 | . $self->deparse($op->first->sibling, 7); | ||||
3137 | } | ||||
3138 | maybe_local(@_, listop(@_, "substr")) | ||||
3139 | } | ||||
3140 | sub pp_vec { maybe_targmy(@_, \&maybe_local, listop(@_, "vec")) } | ||||
3141 | sub pp_index { maybe_targmy(@_, \&listop, "index") } | ||||
3142 | sub pp_rindex { maybe_targmy(@_, \&listop, "rindex") } | ||||
3143 | sub pp_sprintf { maybe_targmy(@_, \&listop, "sprintf") } | ||||
3144 | sub pp_formline { listop(@_, "formline") } # see also deparse_format | ||||
3145 | sub pp_crypt { maybe_targmy(@_, \&listop, "crypt") } | ||||
3146 | sub pp_unpack { listop(@_, "unpack") } | ||||
3147 | sub pp_pack { listop(@_, "pack") } | ||||
3148 | sub pp_join { maybe_targmy(@_, \&listop, "join") } | ||||
3149 | sub pp_splice { listop(@_, "splice") } | ||||
3150 | sub pp_push { maybe_targmy(@_, \&listop, "push") } | ||||
3151 | sub pp_unshift { maybe_targmy(@_, \&listop, "unshift") } | ||||
3152 | sub pp_reverse { listop(@_, "reverse") } | ||||
3153 | sub pp_warn { listop(@_, "warn") } | ||||
3154 | sub pp_die { listop(@_, "die") } | ||||
3155 | sub pp_return { listop(@_, "return", undef, 1) } # llafr does not apply | ||||
3156 | sub pp_open { listop(@_, "open") } | ||||
3157 | sub pp_pipe_op { listop(@_, "pipe") } | ||||
3158 | sub pp_tie { listop(@_, "tie") } | ||||
3159 | sub pp_binmode { listop(@_, "binmode") } | ||||
3160 | sub pp_dbmopen { listop(@_, "dbmopen") } | ||||
3161 | sub pp_sselect { listop(@_, "select") } | ||||
3162 | sub pp_select { listop(@_, "select") } | ||||
3163 | sub pp_read { listop(@_, "read") } | ||||
3164 | sub pp_sysopen { listop(@_, "sysopen") } | ||||
3165 | sub pp_sysseek { listop(@_, "sysseek") } | ||||
3166 | sub pp_sysread { listop(@_, "sysread") } | ||||
3167 | sub pp_syswrite { listop(@_, "syswrite") } | ||||
3168 | sub pp_send { listop(@_, "send") } | ||||
3169 | sub pp_recv { listop(@_, "recv") } | ||||
3170 | sub pp_seek { listop(@_, "seek") } | ||||
3171 | sub pp_fcntl { listop(@_, "fcntl") } | ||||
3172 | sub pp_ioctl { listop(@_, "ioctl") } | ||||
3173 | sub pp_flock { maybe_targmy(@_, \&listop, "flock") } | ||||
3174 | sub pp_socket { listop(@_, "socket") } | ||||
3175 | sub pp_sockpair { listop(@_, "socketpair") } | ||||
3176 | sub pp_bind { listop(@_, "bind") } | ||||
3177 | sub pp_connect { listop(@_, "connect") } | ||||
3178 | sub pp_listen { listop(@_, "listen") } | ||||
3179 | sub pp_accept { listop(@_, "accept") } | ||||
3180 | sub pp_shutdown { listop(@_, "shutdown") } | ||||
3181 | sub pp_gsockopt { listop(@_, "getsockopt") } | ||||
3182 | sub pp_ssockopt { listop(@_, "setsockopt") } | ||||
3183 | sub pp_chown { maybe_targmy(@_, \&listop, "chown") } | ||||
3184 | sub pp_unlink { maybe_targmy(@_, \&listop, "unlink") } | ||||
3185 | sub pp_chmod { maybe_targmy(@_, \&listop, "chmod") } | ||||
3186 | sub pp_utime { maybe_targmy(@_, \&listop, "utime") } | ||||
3187 | sub pp_rename { maybe_targmy(@_, \&listop, "rename") } | ||||
3188 | sub pp_link { maybe_targmy(@_, \&listop, "link") } | ||||
3189 | sub pp_symlink { maybe_targmy(@_, \&listop, "symlink") } | ||||
3190 | sub pp_mkdir { maybe_targmy(@_, \&listop, "mkdir") } | ||||
3191 | sub pp_open_dir { listop(@_, "opendir") } | ||||
3192 | sub pp_seekdir { listop(@_, "seekdir") } | ||||
3193 | sub pp_waitpid { maybe_targmy(@_, \&listop, "waitpid") } | ||||
3194 | sub pp_system { maybe_targmy(@_, \&indirop, "system") } | ||||
3195 | sub pp_exec { maybe_targmy(@_, \&indirop, "exec") } | ||||
3196 | sub pp_kill { maybe_targmy(@_, \&listop, "kill") } | ||||
3197 | sub pp_setpgrp { maybe_targmy(@_, \&listop, "setpgrp") } | ||||
3198 | sub pp_getpriority { maybe_targmy(@_, \&listop, "getpriority") } | ||||
3199 | sub pp_setpriority { maybe_targmy(@_, \&listop, "setpriority") } | ||||
3200 | sub pp_shmget { listop(@_, "shmget") } | ||||
3201 | sub pp_shmctl { listop(@_, "shmctl") } | ||||
3202 | sub pp_shmread { listop(@_, "shmread") } | ||||
3203 | sub pp_shmwrite { listop(@_, "shmwrite") } | ||||
3204 | sub pp_msgget { listop(@_, "msgget") } | ||||
3205 | sub pp_msgctl { listop(@_, "msgctl") } | ||||
3206 | sub pp_msgsnd { listop(@_, "msgsnd") } | ||||
3207 | sub pp_msgrcv { listop(@_, "msgrcv") } | ||||
3208 | sub pp_semget { listop(@_, "semget") } | ||||
3209 | sub pp_semctl { listop(@_, "semctl") } | ||||
3210 | sub pp_semop { listop(@_, "semop") } | ||||
3211 | sub pp_ghbyaddr { listop(@_, "gethostbyaddr") } | ||||
3212 | sub pp_gnbyaddr { listop(@_, "getnetbyaddr") } | ||||
3213 | sub pp_gpbynumber { listop(@_, "getprotobynumber") } | ||||
3214 | sub pp_gsbyname { listop(@_, "getservbyname") } | ||||
3215 | sub pp_gsbyport { listop(@_, "getservbyport") } | ||||
3216 | sub pp_syscall { listop(@_, "syscall") } | ||||
3217 | |||||
3218 | sub pp_glob { | ||||
3219 | my $self = shift; | ||||
3220 | my($op, $cx) = @_; | ||||
3221 | my $kid = $op->first->sibling; # skip pushmark | ||||
3222 | my $keyword = | ||||
3223 | $op->flags & OPf_SPECIAL ? 'glob' : $self->keyword('glob'); | ||||
3224 | my $text; | ||||
3225 | if ($keyword =~ /^CORE::/ | ||||
3226 | or $kid->name ne 'const' | ||||
3227 | or ($text = $self->dq($kid)) | ||||
3228 | =~ /^\$?(\w|::|\`)+$/ # could look like a readline | ||||
3229 | or $text =~ /[<>]/) { | ||||
3230 | $text = $self->deparse($kid); | ||||
3231 | return $cx >= 5 || $self->{'parens'} | ||||
3232 | ? "$keyword($text)" | ||||
3233 | : "$keyword $text"; | ||||
3234 | } else { | ||||
3235 | return '<' . $text . '>'; | ||||
3236 | } | ||||
3237 | } | ||||
3238 | |||||
3239 | # Truncate is special because OPf_SPECIAL makes a bareword first arg | ||||
3240 | # be a filehandle. This could probably be better fixed in the core | ||||
3241 | # by moving the GV lookup into ck_truc. | ||||
3242 | |||||
3243 | sub pp_truncate { | ||||
3244 | my $self = shift; | ||||
3245 | my($op, $cx) = @_; | ||||
3246 | my(@exprs); | ||||
3247 | my $parens = ($cx >= 5) || $self->{'parens'}; | ||||
3248 | my $kid = $op->first->sibling; | ||||
3249 | my $fh; | ||||
3250 | if ($op->flags & OPf_SPECIAL) { | ||||
3251 | # $kid is an OP_CONST | ||||
3252 | $fh = $self->const_sv($kid)->PV; | ||||
3253 | } else { | ||||
3254 | $fh = $self->deparse($kid, 6); | ||||
3255 | $fh = "+$fh" if not $parens and substr($fh, 0, 1) eq "("; | ||||
3256 | } | ||||
3257 | my $len = $self->deparse($kid->sibling, 6); | ||||
3258 | my $name = $self->keyword('truncate'); | ||||
3259 | if ($parens) { | ||||
3260 | return "$name($fh, $len)"; | ||||
3261 | } else { | ||||
3262 | return "$name $fh, $len"; | ||||
3263 | } | ||||
3264 | } | ||||
3265 | |||||
3266 | sub indirop { | ||||
3267 | my $self = shift; | ||||
3268 | my($op, $cx, $name) = @_; | ||||
3269 | my($expr, @exprs); | ||||
3270 | my $firstkid = my $kid = $op->first->sibling; | ||||
3271 | my $indir = ""; | ||||
3272 | if ($op->flags & OPf_STACKED) { | ||||
3273 | $indir = $kid; | ||||
3274 | $indir = $indir->first; # skip rv2gv | ||||
3275 | if (is_scope($indir)) { | ||||
3276 | $indir = "{" . $self->deparse($indir, 0) . "}"; | ||||
3277 | $indir = "{;}" if $indir eq "{}"; | ||||
3278 | } elsif ($indir->name eq "const" && $indir->private & OPpCONST_BARE) { | ||||
3279 | $indir = $self->const_sv($indir)->PV; | ||||
3280 | } else { | ||||
3281 | $indir = $self->deparse($indir, 24); | ||||
3282 | } | ||||
3283 | $indir = $indir . " "; | ||||
3284 | $kid = $kid->sibling; | ||||
3285 | } | ||||
3286 | if ($name eq "sort" && $op->private & (OPpSORT_NUMERIC | OPpSORT_INTEGER)) { | ||||
3287 | $indir = ($op->private & OPpSORT_DESCEND) ? '{$b <=> $a} ' | ||||
3288 | : '{$a <=> $b} '; | ||||
3289 | } | ||||
3290 | elsif ($name eq "sort" && $op->private & OPpSORT_DESCEND) { | ||||
3291 | $indir = '{$b cmp $a} '; | ||||
3292 | } | ||||
3293 | for (; !null($kid); $kid = $kid->sibling) { | ||||
3294 | $expr = $self->deparse($kid, !$indir && $kid == $firstkid && $name eq "sort" && $firstkid->name eq "entersub" ? 16 : 6); | ||||
3295 | push @exprs, $expr; | ||||
3296 | } | ||||
3297 | my $name2; | ||||
3298 | if ($name eq "sort" && $op->private & OPpSORT_REVERSE) { | ||||
3299 | $name2 = $self->keyword('reverse') . ' ' . $self->keyword('sort'); | ||||
3300 | } | ||||
3301 | else { $name2 = $self->keyword($name) } | ||||
3302 | if ($name eq "sort" && ($op->private & OPpSORT_INPLACE)) { | ||||
3303 | return "$exprs[0] = $name2 $indir $exprs[0]"; | ||||
3304 | } | ||||
3305 | |||||
3306 | my $args = $indir . join(", ", @exprs); | ||||
3307 | if ($indir ne "" && $name eq "sort") { | ||||
3308 | # We don't want to say "sort(f 1, 2, 3)", since perl -w will | ||||
3309 | # give bareword warnings in that case. Therefore if context | ||||
3310 | # requires, we'll put parens around the outside "(sort f 1, 2, | ||||
3311 | # 3)". Unfortunately, we'll currently think the parens are | ||||
3312 | # necessary more often that they really are, because we don't | ||||
3313 | # distinguish which side of an assignment we're on. | ||||
3314 | if ($cx >= 5) { | ||||
3315 | return "($name2 $args)"; | ||||
3316 | } else { | ||||
3317 | return "$name2 $args"; | ||||
3318 | } | ||||
3319 | } elsif ( | ||||
3320 | !$indir && $name eq "sort" | ||||
3321 | && !null($op->first->sibling) | ||||
3322 | && $op->first->sibling->name eq 'entersub' | ||||
3323 | ) { | ||||
3324 | # We cannot say sort foo(bar), as foo will be interpreted as a | ||||
3325 | # comparison routine. We have to say sort(...) in that case. | ||||
3326 | return "$name2($args)"; | ||||
3327 | } else { | ||||
3328 | return length $args | ||||
3329 | ? $self->maybe_parens_func($name2, $args, $cx, 5) | ||||
3330 | : $name2 . '()' x (7 < $cx); | ||||
3331 | } | ||||
3332 | |||||
3333 | } | ||||
3334 | |||||
3335 | sub pp_prtf { indirop(@_, "printf") } | ||||
3336 | sub pp_print { indirop(@_, "print") } | ||||
3337 | sub pp_say { indirop(@_, "say") } | ||||
3338 | sub pp_sort { indirop(@_, "sort") } | ||||
3339 | |||||
3340 | sub mapop { | ||||
3341 | my $self = shift; | ||||
3342 | my($op, $cx, $name) = @_; | ||||
3343 | my($expr, @exprs); | ||||
3344 | my $kid = $op->first; # this is the (map|grep)start | ||||
3345 | $kid = $kid->first->sibling; # skip a pushmark | ||||
3346 | my $code = $kid->first; # skip a null | ||||
3347 | if (is_scope $code) { | ||||
3348 | $code = "{" . $self->deparse($code, 0) . "} "; | ||||
3349 | } else { | ||||
3350 | $code = $self->deparse($code, 24); | ||||
3351 | $code .= ", " if !null($kid->sibling); | ||||
3352 | } | ||||
3353 | $kid = $kid->sibling; | ||||
3354 | for (; !null($kid); $kid = $kid->sibling) { | ||||
3355 | $expr = $self->deparse($kid, 6); | ||||
3356 | push @exprs, $expr if defined $expr; | ||||
3357 | } | ||||
3358 | return $self->maybe_parens_func($self->keyword($name), | ||||
3359 | $code . join(", ", @exprs), $cx, 5); | ||||
3360 | } | ||||
3361 | |||||
3362 | sub pp_mapwhile { mapop(@_, "map") } | ||||
3363 | sub pp_grepwhile { mapop(@_, "grep") } | ||||
3364 | sub pp_mapstart { baseop(@_, "map") } | ||||
3365 | sub pp_grepstart { baseop(@_, "grep") } | ||||
3366 | |||||
3367 | 1 | 100ns | my %uses_intro; | ||
3368 | # spent 3.35ms within B::Deparse::BEGIN@3368 which was called:
# once (3.35ms+0s) by YAML::XS::BEGIN@57 at line 3377 | ||||
3369 | @uses_intro{ | ||||
3370 | 1 | 2.81ms | eval { require B::Op_private } | ||
3371 | 1 | 11µs | ? @{$B::Op_private::ops_using{OPpLVAL_INTRO}} | ||
3372 | : qw(gvsv rv2sv rv2hv rv2gv rv2av aelem helem aslice | ||||
3373 | hslice delete padsv padav padhv enteriter entersub padrange | ||||
3374 | pushmark cond_expr refassign list) | ||||
3375 | } = (); | ||||
3376 | 1 | 6µs | delete @uses_intro{qw( lvref lvrefslice lvavref entersub )}; | ||
3377 | 1 | 3.72ms | 1 | 3.35ms | } # spent 3.35ms making 1 call to B::Deparse::BEGIN@3368 |
3378 | |||||
3379 | sub pp_list { | ||||
3380 | my $self = shift; | ||||
3381 | my($op, $cx) = @_; | ||||
3382 | my($expr, @exprs); | ||||
3383 | my $kid = $op->first->sibling; # skip pushmark | ||||
3384 | return '' if class($kid) eq 'NULL'; | ||||
3385 | my $lop; | ||||
3386 | my $local = "either"; # could be local(...), my(...), state(...) or our(...) | ||||
3387 | my $type; | ||||
3388 | for ($lop = $kid; !null($lop); $lop = $lop->sibling) { | ||||
3389 | my $lopname = $lop->name; | ||||
3390 | my $loppriv = $lop->private; | ||||
3391 | my $newtype; | ||||
3392 | if ($lopname =~ /^pad[ash]v$/ && $loppriv & OPpLVAL_INTRO) { | ||||
3393 | if ($loppriv & OPpPAD_STATE) { # state() | ||||
3394 | ($local = "", last) if $local !~ /^(?:either|state)$/; | ||||
3395 | $local = "state"; | ||||
3396 | } else { # my() | ||||
3397 | ($local = "", last) if $local !~ /^(?:either|my)$/; | ||||
3398 | $local = "my"; | ||||
3399 | } | ||||
3400 | my $padname = $self->padname_sv($lop->targ); | ||||
3401 | if ($padname->FLAGS & SVpad_TYPED) { | ||||
3402 | $newtype = $padname->SvSTASH->NAME; | ||||
3403 | } | ||||
3404 | } elsif ($lopname =~ /^(?:gv|rv2)([ash])v$/ | ||||
3405 | && $loppriv & OPpOUR_INTRO | ||||
3406 | or $lopname eq "null" && class($lop) eq 'UNOP' | ||||
3407 | && $lop->first->name eq "gvsv" | ||||
3408 | && $lop->first->private & OPpOUR_INTRO) { # our() | ||||
3409 | my $newlocal = "local " x !!($loppriv & OPpLVAL_INTRO) . "our"; | ||||
3410 | ($local = "", last) | ||||
3411 | if $local ne 'either' && $local ne $newlocal; | ||||
3412 | $local = $newlocal; | ||||
3413 | my $funny = !$1 || $1 eq 's' ? '$' : $1 eq 'a' ? '@' : '%'; | ||||
3414 | if (my $t = $self->find_our_type( | ||||
3415 | $funny . $self->gv_or_padgv($lop->first)->NAME | ||||
3416 | )) { | ||||
3417 | $newtype = $t; | ||||
3418 | } | ||||
3419 | } elsif ($lopname ne 'undef' | ||||
3420 | and !($loppriv & OPpLVAL_INTRO) | ||||
3421 | || !exists $uses_intro{$lopname eq 'null' | ||||
3422 | ? substr B::ppname($lop->targ), 3 | ||||
3423 | : $lopname}) | ||||
3424 | { | ||||
3425 | $local = ""; # or not | ||||
3426 | last; | ||||
3427 | } elsif ($lopname ne "undef") | ||||
3428 | { | ||||
3429 | # local() | ||||
3430 | ($local = "", last) if $local !~ /^(?:either|local)$/; | ||||
3431 | $local = "local"; | ||||
3432 | } | ||||
3433 | if (defined $type && defined $newtype && $newtype ne $type) { | ||||
3434 | $local = ''; | ||||
3435 | last; | ||||
3436 | } | ||||
3437 | $type = $newtype; | ||||
3438 | } | ||||
3439 | $local = "" if $local eq "either"; # no point if it's all undefs | ||||
3440 | $local &&= join ' ', map $self->keyword($_), split / /, $local; | ||||
3441 | $local .= " $type " if $local && length $type; | ||||
3442 | return $self->deparse($kid, $cx) if null $kid->sibling and not $local; | ||||
3443 | for (; !null($kid); $kid = $kid->sibling) { | ||||
3444 | if ($local) { | ||||
3445 | if (class($kid) eq "UNOP" and $kid->first->name eq "gvsv") { | ||||
3446 | $lop = $kid->first; | ||||
3447 | } else { | ||||
3448 | $lop = $kid; | ||||
3449 | } | ||||
3450 | $self->{'avoid_local'}{$$lop}++; | ||||
3451 | $expr = $self->deparse($kid, 6); | ||||
3452 | delete $self->{'avoid_local'}{$$lop}; | ||||
3453 | } else { | ||||
3454 | $expr = $self->deparse($kid, 6); | ||||
3455 | } | ||||
3456 | push @exprs, $expr; | ||||
3457 | } | ||||
3458 | if ($local) { | ||||
3459 | return "$local(" . join(", ", @exprs) . ")"; | ||||
3460 | } else { | ||||
3461 | return $self->maybe_parens( join(", ", @exprs), $cx, 6); | ||||
3462 | } | ||||
3463 | } | ||||
3464 | |||||
3465 | sub is_ifelse_cont { | ||||
3466 | my $op = shift; | ||||
3467 | return ($op->name eq "null" and class($op) eq "UNOP" | ||||
3468 | and $op->first->name =~ /^(and|cond_expr)$/ | ||||
3469 | and is_scope($op->first->first->sibling)); | ||||
3470 | } | ||||
3471 | |||||
3472 | sub pp_cond_expr { | ||||
3473 | my $self = shift; | ||||
3474 | my($op, $cx) = @_; | ||||
3475 | my $cond = $op->first; | ||||
3476 | my $true = $cond->sibling; | ||||
3477 | my $false = $true->sibling; | ||||
3478 | my $cuddle = $self->{'cuddle'}; | ||||
3479 | unless ($cx < 1 and (is_scope($true) and $true->name ne "null") and | ||||
3480 | (is_scope($false) || is_ifelse_cont($false)) | ||||
3481 | and $self->{'expand'} < 7) { | ||||
3482 | $cond = $self->deparse($cond, 8); | ||||
3483 | $true = $self->deparse($true, 6); | ||||
3484 | $false = $self->deparse($false, 8); | ||||
3485 | return $self->maybe_parens("$cond ? $true : $false", $cx, 8); | ||||
3486 | } | ||||
3487 | |||||
3488 | $cond = $self->deparse($cond, 1); | ||||
3489 | $true = $self->deparse($true, 0); | ||||
3490 | my $head = $self->keyword("if") . " ($cond) {\n\t$true\n\b}"; | ||||
3491 | my @elsifs; | ||||
3492 | my $elsif; | ||||
3493 | while (!null($false) and is_ifelse_cont($false)) { | ||||
3494 | my $newop = $false->first; | ||||
3495 | my $newcond = $newop->first; | ||||
3496 | my $newtrue = $newcond->sibling; | ||||
3497 | $false = $newtrue->sibling; # last in chain is OP_AND => no else | ||||
3498 | if ($newcond->name eq "lineseq") | ||||
3499 | { | ||||
3500 | # lineseq to ensure correct line numbers in elsif() | ||||
3501 | # Bug #37302 fixed by change #33710. | ||||
3502 | $newcond = $newcond->first->sibling; | ||||
3503 | } | ||||
3504 | $newcond = $self->deparse($newcond, 1); | ||||
3505 | $newtrue = $self->deparse($newtrue, 0); | ||||
3506 | $elsif ||= $self->keyword("elsif"); | ||||
3507 | push @elsifs, "$elsif ($newcond) {\n\t$newtrue\n\b}"; | ||||
3508 | } | ||||
3509 | if (!null($false)) { | ||||
3510 | $false = $cuddle . $self->keyword("else") . " {\n\t" . | ||||
3511 | $self->deparse($false, 0) . "\n\b}\cK"; | ||||
3512 | } else { | ||||
3513 | $false = "\cK"; | ||||
3514 | } | ||||
3515 | return $head . join($cuddle, "", @elsifs) . $false; | ||||
3516 | } | ||||
3517 | |||||
3518 | sub pp_once { | ||||
3519 | my ($self, $op, $cx) = @_; | ||||
3520 | my $cond = $op->first; | ||||
3521 | my $true = $cond->sibling; | ||||
3522 | |||||
3523 | my $ret = $self->deparse($true, $cx); | ||||
3524 | $ret =~ s/^(\(?)\$/$1 . $self->keyword("state") . ' $'/e; | ||||
3525 | $ret; | ||||
3526 | } | ||||
3527 | |||||
3528 | sub loop_common { | ||||
3529 | my $self = shift; | ||||
3530 | my($op, $cx, $init) = @_; | ||||
3531 | my $enter = $op->first; | ||||
3532 | my $kid = $enter->sibling; | ||||
3533 | local(@$self{qw'curstash warnings hints hinthash'}) | ||||
3534 | = @$self{qw'curstash warnings hints hinthash'}; | ||||
3535 | my $head = ""; | ||||
3536 | my $bare = 0; | ||||
3537 | my $body; | ||||
3538 | my $cond = undef; | ||||
3539 | my $name; | ||||
3540 | if ($kid->name eq "lineseq") { # bare or infinite loop | ||||
3541 | if ($kid->last->name eq "unstack") { # infinite | ||||
3542 | $head = "while (1) "; # Can't use for(;;) if there's a continue | ||||
3543 | $cond = ""; | ||||
3544 | } else { | ||||
3545 | $bare = 1; | ||||
3546 | } | ||||
3547 | $body = $kid; | ||||
3548 | } elsif ($enter->name eq "enteriter") { # foreach | ||||
3549 | my $ary = $enter->first->sibling; # first was pushmark | ||||
3550 | my $var = $ary->sibling; | ||||
3551 | if ($ary->name eq 'null' and $enter->private & OPpITER_REVERSED) { | ||||
3552 | # "reverse" was optimised away | ||||
3553 | $ary = listop($self, $ary->first->sibling, 1, 'reverse'); | ||||
3554 | } elsif ($enter->flags & OPf_STACKED | ||||
3555 | and not null $ary->first->sibling->sibling) | ||||
3556 | { | ||||
3557 | $ary = $self->deparse($ary->first->sibling, 9) . " .. " . | ||||
3558 | $self->deparse($ary->first->sibling->sibling, 9); | ||||
3559 | } else { | ||||
3560 | $ary = $self->deparse($ary, 1); | ||||
3561 | } | ||||
3562 | if (null $var) { | ||||
3563 | $var = $self->pp_padsv($enter, 1, 1); | ||||
3564 | } elsif ($var->name eq "rv2gv") { | ||||
3565 | $var = $self->pp_rv2sv($var, 1); | ||||
3566 | if ($enter->private & OPpOUR_INTRO) { | ||||
3567 | # our declarations don't have package names | ||||
3568 | $var =~ s/^(.).*::/$1/; | ||||
3569 | $var = "our $var"; | ||||
3570 | } | ||||
3571 | } elsif ($var->name eq "gv") { | ||||
3572 | $var = "\$" . $self->deparse($var, 1); | ||||
3573 | } else { | ||||
3574 | $var = $self->deparse($var, 1); | ||||
3575 | } | ||||
3576 | $body = $kid->first->first->sibling; # skip OP_AND and OP_ITER | ||||
3577 | if (!is_state $body->first and $body->first->name !~ /^(?:stub|leave|scope)$/) { | ||||
3578 | confess unless $var eq '$_'; | ||||
3579 | $body = $body->first; | ||||
3580 | return $self->deparse($body, 2) . " " | ||||
3581 | . $self->keyword("foreach") . " ($ary)"; | ||||
3582 | } | ||||
3583 | $head = "foreach $var ($ary) "; | ||||
3584 | } elsif ($kid->name eq "null") { # while/until | ||||
3585 | $kid = $kid->first; | ||||
3586 | $name = {"and" => "while", "or" => "until"}->{$kid->name}; | ||||
3587 | $cond = $kid->first; | ||||
3588 | $body = $kid->first->sibling; | ||||
3589 | } elsif ($kid->name eq "stub") { # bare and empty | ||||
3590 | return "{;}"; # {} could be a hashref | ||||
3591 | } | ||||
3592 | # If there isn't a continue block, then the next pointer for the loop | ||||
3593 | # will point to the unstack, which is kid's last child, except | ||||
3594 | # in a bare loop, when it will point to the leaveloop. When neither of | ||||
3595 | # these conditions hold, then the second-to-last child is the continue | ||||
3596 | # block (or the last in a bare loop). | ||||
3597 | my $cont_start = $enter->nextop; | ||||
3598 | my $cont; | ||||
3599 | my $precond; | ||||
3600 | my $postcond; | ||||
3601 | if ($$cont_start != $$op && ${$cont_start} != ${$body->last}) { | ||||
3602 | if ($bare) { | ||||
3603 | $cont = $body->last; | ||||
3604 | } else { | ||||
3605 | $cont = $body->first; | ||||
3606 | while (!null($cont->sibling->sibling)) { | ||||
3607 | $cont = $cont->sibling; | ||||
3608 | } | ||||
3609 | } | ||||
3610 | my $state = $body->first; | ||||
3611 | my $cuddle = $self->{'cuddle'}; | ||||
3612 | my @states; | ||||
3613 | for (; $$state != $$cont; $state = $state->sibling) { | ||||
3614 | push @states, $state; | ||||
3615 | } | ||||
3616 | $body = $self->lineseq(undef, 0, @states); | ||||
3617 | if (defined $cond and not is_scope $cont and $self->{'expand'} < 3) { | ||||
3618 | $precond = "for ($init; "; | ||||
3619 | $postcond = "; " . $self->deparse($cont, 1) .") "; | ||||
3620 | $cont = "\cK"; | ||||
3621 | } else { | ||||
3622 | $cont = $cuddle . "continue {\n\t" . | ||||
3623 | $self->deparse($cont, 0) . "\n\b}\cK"; | ||||
3624 | } | ||||
3625 | } else { | ||||
3626 | return "" if !defined $body; | ||||
3627 | if (length $init) { | ||||
3628 | $precond = "for ($init; "; | ||||
3629 | $postcond = ";) "; | ||||
3630 | } | ||||
3631 | $cont = "\cK"; | ||||
3632 | $body = $self->deparse($body, 0); | ||||
3633 | } | ||||
3634 | if ($precond) { # for(;;) | ||||
3635 | $cond &&= $name eq 'until' | ||||
3636 | ? listop($self, undef, 1, "not", $cond->first) | ||||
3637 | : $self->deparse($cond, 1); | ||||
3638 | $head = "$precond$cond$postcond"; | ||||
3639 | } | ||||
3640 | if ($name && !$head) { | ||||
3641 | ref $cond and $cond = $self->deparse($cond, 1); | ||||
3642 | $head = "$name ($cond) "; | ||||
3643 | } | ||||
3644 | $head =~ s/^(for(?:each)?|while|until)/$self->keyword($1)/e; | ||||
3645 | $body =~ s/;?$/;\n/; | ||||
3646 | |||||
3647 | return $head . "{\n\t" . $body . "\b}" . $cont; | ||||
3648 | } | ||||
3649 | |||||
3650 | sub pp_leaveloop { shift->loop_common(@_, "") } | ||||
3651 | |||||
3652 | sub for_loop { | ||||
3653 | my $self = shift; | ||||
3654 | my($op, $cx) = @_; | ||||
3655 | my $init = $self->deparse($op, 1); | ||||
3656 | my $s = $op->sibling; | ||||
3657 | my $ll = $s->name eq "unstack" ? $s->sibling : $s->first->sibling; | ||||
3658 | return $self->loop_common($ll, $cx, $init); | ||||
3659 | } | ||||
3660 | |||||
3661 | sub pp_leavetry { | ||||
3662 | my $self = shift; | ||||
3663 | return "eval {\n\t" . $self->pp_leave(@_) . "\n\b}"; | ||||
3664 | } | ||||
3665 | |||||
3666 | sub _op_is_or_was { | ||||
3667 | my ($op, $expect_type) = @_; | ||||
3668 | my $type = $op->type; | ||||
3669 | return($type == $expect_type | ||||
3670 | || ($type == OP_NULL && $op->targ == $expect_type)); | ||||
3671 | } | ||||
3672 | |||||
3673 | sub pp_null { | ||||
3674 | my($self, $op, $cx) = @_; | ||||
3675 | if (class($op) eq "OP") { | ||||
3676 | # old value is lost | ||||
3677 | return $self->{'ex_const'} if $op->targ == OP_CONST; | ||||
3678 | } elsif (class ($op) eq "COP") { | ||||
3679 | return &pp_nextstate; | ||||
3680 | } elsif ($op->first->name eq 'pushmark' | ||||
3681 | or $op->first->name eq 'null' | ||||
3682 | && $op->first->targ == OP_PUSHMARK | ||||
3683 | && _op_is_or_was($op, OP_LIST)) { | ||||
3684 | return $self->pp_list($op, $cx); | ||||
3685 | } elsif ($op->first->name eq "enter") { | ||||
3686 | return $self->pp_leave($op, $cx); | ||||
3687 | } elsif ($op->first->name eq "leave") { | ||||
3688 | return $self->pp_leave($op->first, $cx); | ||||
3689 | } elsif ($op->first->name eq "scope") { | ||||
3690 | return $self->pp_scope($op->first, $cx); | ||||
3691 | } elsif ($op->targ == OP_STRINGIFY) { | ||||
3692 | return $self->dquote($op, $cx); | ||||
3693 | } elsif ($op->targ == OP_GLOB) { | ||||
3694 | return $self->pp_glob( | ||||
3695 | $op->first # entersub | ||||
3696 | ->first # ex-list | ||||
3697 | ->first # pushmark | ||||
3698 | ->sibling, # glob | ||||
3699 | $cx | ||||
3700 | ); | ||||
3701 | } elsif (!null($op->first->sibling) and | ||||
3702 | $op->first->sibling->name eq "readline" and | ||||
3703 | $op->first->sibling->flags & OPf_STACKED) { | ||||
3704 | return $self->maybe_parens($self->deparse($op->first, 7) . " = " | ||||
3705 | . $self->deparse($op->first->sibling, 7), | ||||
3706 | $cx, 7); | ||||
3707 | } elsif (!null($op->first->sibling) and | ||||
3708 | $op->first->sibling->name =~ /^transr?\z/ and | ||||
3709 | $op->first->sibling->flags & OPf_STACKED) { | ||||
3710 | return $self->maybe_parens($self->deparse($op->first, 20) . " =~ " | ||||
3711 | . $self->deparse($op->first->sibling, 20), | ||||
3712 | $cx, 20); | ||||
3713 | } elsif ($op->flags & OPf_SPECIAL && $cx < 1 && !$op->targ) { | ||||
3714 | return ($self->lex_in_scope("&do") ? "CORE::do" : "do") | ||||
3715 | . " {\n\t". $self->deparse($op->first, $cx) ."\n\b};"; | ||||
3716 | } elsif (!null($op->first->sibling) and | ||||
3717 | $op->first->sibling->name eq "null" and | ||||
3718 | class($op->first->sibling) eq "UNOP" and | ||||
3719 | $op->first->sibling->first->flags & OPf_STACKED and | ||||
3720 | $op->first->sibling->first->name eq "rcatline") { | ||||
3721 | return $self->maybe_parens($self->deparse($op->first, 18) . " .= " | ||||
3722 | . $self->deparse($op->first->sibling, 18), | ||||
3723 | $cx, 18); | ||||
3724 | } else { | ||||
3725 | return $self->deparse($op->first, $cx); | ||||
3726 | } | ||||
3727 | } | ||||
3728 | |||||
3729 | sub padname { | ||||
3730 | my $self = shift; | ||||
3731 | my $targ = shift; | ||||
3732 | return $self->padname_sv($targ)->PVX; | ||||
3733 | } | ||||
3734 | |||||
3735 | sub padany { | ||||
3736 | my $self = shift; | ||||
3737 | my $op = shift; | ||||
3738 | return substr($self->padname($op->targ), 1); # skip $/@/% | ||||
3739 | } | ||||
3740 | |||||
3741 | sub pp_padsv { | ||||
3742 | my $self = shift; | ||||
3743 | my($op, $cx, $forbid_parens) = @_; | ||||
3744 | my $targ = $op->targ; | ||||
3745 | return $self->maybe_my($op, $cx, $self->padname($targ), | ||||
3746 | $self->padname_sv($targ), | ||||
3747 | $forbid_parens); | ||||
3748 | } | ||||
3749 | |||||
3750 | sub pp_padav { pp_padsv(@_) } | ||||
3751 | sub pp_padhv { pp_padsv(@_) } | ||||
3752 | |||||
3753 | sub gv_or_padgv { | ||||
3754 | my $self = shift; | ||||
3755 | my $op = shift; | ||||
3756 | if (class($op) eq "PADOP") { | ||||
3757 | return $self->padval($op->padix); | ||||
3758 | } else { # class($op) eq "SVOP" | ||||
3759 | return $op->gv; | ||||
3760 | } | ||||
3761 | } | ||||
3762 | |||||
3763 | sub pp_gvsv { | ||||
3764 | my $self = shift; | ||||
3765 | my($op, $cx) = @_; | ||||
3766 | my $gv = $self->gv_or_padgv($op); | ||||
3767 | return $self->maybe_local($op, $cx, $self->stash_variable("\$", | ||||
3768 | $self->gv_name($gv), $cx)); | ||||
3769 | } | ||||
3770 | |||||
3771 | sub pp_gv { | ||||
3772 | my $self = shift; | ||||
3773 | my($op, $cx) = @_; | ||||
3774 | my $gv = $self->gv_or_padgv($op); | ||||
3775 | return $self->gv_name($gv); | ||||
3776 | } | ||||
3777 | |||||
3778 | sub pp_aelemfast_lex { | ||||
3779 | my $self = shift; | ||||
3780 | my($op, $cx) = @_; | ||||
3781 | my $name = $self->padname($op->targ); | ||||
3782 | $name =~ s/^@/\$/; | ||||
3783 | my $i = $op->private; | ||||
3784 | $i -= 256 if $i > 127; | ||||
3785 | return $name . "[" . ($i + $self->{'arybase'}) . "]"; | ||||
3786 | } | ||||
3787 | |||||
3788 | sub pp_aelemfast { | ||||
3789 | my $self = shift; | ||||
3790 | my($op, $cx) = @_; | ||||
3791 | # optimised PADAV, pre 5.15 | ||||
3792 | return $self->pp_aelemfast_lex(@_) if ($op->flags & OPf_SPECIAL); | ||||
3793 | |||||
3794 | my $gv = $self->gv_or_padgv($op); | ||||
3795 | my($name,$quoted) = $self->stash_variable_name('@',$gv); | ||||
3796 | $name = $quoted ? "$name->" : '$' . $name; | ||||
3797 | my $i = $op->private; | ||||
3798 | $i -= 256 if $i > 127; | ||||
3799 | return $name . "[" . ($i + $self->{'arybase'}) . "]"; | ||||
3800 | } | ||||
3801 | |||||
3802 | sub rv2x { | ||||
3803 | my $self = shift; | ||||
3804 | my($op, $cx, $type) = @_; | ||||
3805 | |||||
3806 | if (class($op) eq 'NULL' || !$op->can("first")) { | ||||
3807 | carp("Unexpected op in pp_rv2x"); | ||||
3808 | return 'XXX'; | ||||
3809 | } | ||||
3810 | my $kid = $op->first; | ||||
3811 | if ($kid->name eq "gv") { | ||||
3812 | return $self->stash_variable($type, $self->deparse($kid, 0), $cx); | ||||
3813 | } elsif (is_scalar $kid) { | ||||
3814 | my $str = $self->deparse($kid, 0); | ||||
3815 | if ($str =~ /^\$([^\w\d])\z/) { | ||||
3816 | # "$$+" isn't a legal way to write the scalar dereference | ||||
3817 | # of $+, since the lexer can't tell you aren't trying to | ||||
3818 | # do something like "$$ + 1" to get one more than your | ||||
3819 | # PID. Either "${$+}" or "$${+}" are workable | ||||
3820 | # disambiguations, but if the programmer did the former, | ||||
3821 | # they'd be in the "else" clause below rather than here. | ||||
3822 | # It's not clear if this should somehow be unified with | ||||
3823 | # the code in dq and re_dq that also adds lexer | ||||
3824 | # disambiguation braces. | ||||
3825 | $str = '$' . "{$1}"; #' | ||||
3826 | } | ||||
3827 | return $type . $str; | ||||
3828 | } else { | ||||
3829 | return $type . "{" . $self->deparse($kid, 0) . "}"; | ||||
3830 | } | ||||
3831 | } | ||||
3832 | |||||
3833 | sub pp_rv2sv { maybe_local(@_, rv2x(@_, "\$")) } | ||||
3834 | sub pp_rv2hv { maybe_local(@_, rv2x(@_, "%")) } | ||||
3835 | sub pp_rv2gv { maybe_local(@_, rv2x(@_, "*")) } | ||||
3836 | |||||
3837 | # skip rv2av | ||||
3838 | sub pp_av2arylen { | ||||
3839 | my $self = shift; | ||||
3840 | my($op, $cx) = @_; | ||||
3841 | if ($op->first->name eq "padav") { | ||||
3842 | return $self->maybe_local($op, $cx, '$#' . $self->padany($op->first)); | ||||
3843 | } else { | ||||
3844 | return $self->maybe_local($op, $cx, | ||||
3845 | $self->rv2x($op->first, $cx, '$#')); | ||||
3846 | } | ||||
3847 | } | ||||
3848 | |||||
3849 | # skip down to the old, ex-rv2cv | ||||
3850 | sub pp_rv2cv { | ||||
3851 | my ($self, $op, $cx) = @_; | ||||
3852 | if (!null($op->first) && $op->first->name eq 'null' && | ||||
3853 | $op->first->targ == OP_LIST) | ||||
3854 | { | ||||
3855 | return $self->rv2x($op->first->first->sibling, $cx, "&") | ||||
3856 | } | ||||
3857 | else { | ||||
3858 | return $self->rv2x($op, $cx, "") | ||||
3859 | } | ||||
3860 | } | ||||
3861 | |||||
3862 | sub list_const { | ||||
3863 | my $self = shift; | ||||
3864 | my($cx, @list) = @_; | ||||
3865 | my @a = map $self->const($_, 6), @list; | ||||
3866 | if (@a == 0) { | ||||
3867 | return "()"; | ||||
3868 | } elsif (@a == 1) { | ||||
3869 | return $a[0]; | ||||
3870 | } elsif ( @a > 2 and !grep(!/^-?\d+$/, @a)) { | ||||
3871 | # collapse (-1,0,1,2) into (-1..2) | ||||
3872 | my ($s, $e) = @a[0,-1]; | ||||
3873 | my $i = $s; | ||||
3874 | return $self->maybe_parens("$s..$e", $cx, 9) | ||||
3875 | unless grep $i++ != $_, @a; | ||||
3876 | } | ||||
3877 | return $self->maybe_parens(join(", ", @a), $cx, 6); | ||||
3878 | } | ||||
3879 | |||||
3880 | sub pp_rv2av { | ||||
3881 | my $self = shift; | ||||
3882 | my($op, $cx) = @_; | ||||
3883 | my $kid = $op->first; | ||||
3884 | if ($kid->name eq "const") { # constant list | ||||
3885 | my $av = $self->const_sv($kid); | ||||
3886 | return $self->list_const($cx, $av->ARRAY); | ||||
3887 | } else { | ||||
3888 | return $self->maybe_local($op, $cx, $self->rv2x($op, $cx, "\@")); | ||||
3889 | } | ||||
3890 | } | ||||
3891 | |||||
3892 | sub is_subscriptable { | ||||
3893 | my $op = shift; | ||||
3894 | if ($op->name =~ /^([ahg]elem|multideref$)/) { | ||||
3895 | return 1; | ||||
3896 | } elsif ($op->name eq "entersub") { | ||||
3897 | my $kid = $op->first; | ||||
3898 | return 0 unless null $kid->sibling; | ||||
3899 | $kid = $kid->first; | ||||
3900 | $kid = $kid->sibling until null $kid->sibling; | ||||
3901 | return 0 if is_scope($kid); | ||||
3902 | $kid = $kid->first; | ||||
3903 | return 0 if $kid->name eq "gv" || $kid->name eq "padcv"; | ||||
3904 | return 0 if is_scalar($kid); | ||||
3905 | return is_subscriptable($kid); | ||||
3906 | } else { | ||||
3907 | return 0; | ||||
3908 | } | ||||
3909 | } | ||||
3910 | |||||
3911 | sub elem_or_slice_array_name | ||||
3912 | { | ||||
3913 | my $self = shift; | ||||
3914 | my ($array, $left, $padname, $allow_arrow) = @_; | ||||
3915 | |||||
3916 | if ($array->name eq $padname) { | ||||
3917 | return $self->padany($array); | ||||
3918 | } elsif (is_scope($array)) { # ${expr}[0] | ||||
3919 | return "{" . $self->deparse($array, 0) . "}"; | ||||
3920 | } elsif ($array->name eq "gv") { | ||||
3921 | ($array, my $quoted) = | ||||
3922 | $self->stash_variable_name( | ||||
3923 | $left eq '[' ? '@' : '%', $self->gv_or_padgv($array) | ||||
3924 | ); | ||||
3925 | if (!$allow_arrow && $quoted) { | ||||
3926 | # This cannot happen. | ||||
3927 | die "Invalid variable name $array for slice"; | ||||
3928 | } | ||||
3929 | return $quoted ? "$array->" : $array; | ||||
3930 | } elsif (!$allow_arrow || is_scalar $array) { # $x[0], $$x[0], ... | ||||
3931 | return $self->deparse($array, 24); | ||||
3932 | } else { | ||||
3933 | return undef; | ||||
3934 | } | ||||
3935 | } | ||||
3936 | |||||
3937 | sub elem_or_slice_single_index | ||||
3938 | { | ||||
3939 | my $self = shift; | ||||
3940 | my ($idx) = @_; | ||||
3941 | |||||
3942 | $idx = $self->deparse($idx, 1); | ||||
3943 | |||||
3944 | # Outer parens in an array index will confuse perl | ||||
3945 | # if we're interpolating in a regular expression, i.e. | ||||
3946 | # /$x$foo[(-1)]/ is *not* the same as /$x$foo[-1]/ | ||||
3947 | # | ||||
3948 | # If $self->{parens}, then an initial '(' will | ||||
3949 | # definitely be paired with a final ')'. If | ||||
3950 | # !$self->{parens}, the misleading parens won't | ||||
3951 | # have been added in the first place. | ||||
3952 | # | ||||
3953 | # [You might think that we could get "(...)...(...)" | ||||
3954 | # where the initial and final parens do not match | ||||
3955 | # each other. But we can't, because the above would | ||||
3956 | # only happen if there's an infix binop between the | ||||
3957 | # two pairs of parens, and *that* means that the whole | ||||
3958 | # expression would be parenthesized as well.] | ||||
3959 | # | ||||
3960 | $idx =~ s/^\((.*)\)$/$1/ if $self->{'parens'}; | ||||
3961 | |||||
3962 | # Hash-element braces will autoquote a bareword inside themselves. | ||||
3963 | # We need to make sure that C<$hash{warn()}> doesn't come out as | ||||
3964 | # C<$hash{warn}>, which has a quite different meaning. Currently | ||||
3965 | # B::Deparse will always quote strings, even if the string was a | ||||
3966 | # bareword in the original (i.e. the OPpCONST_BARE flag is ignored | ||||
3967 | # for constant strings.) So we can cheat slightly here - if we see | ||||
3968 | # a bareword, we know that it is supposed to be a function call. | ||||
3969 | # | ||||
3970 | $idx =~ s/^([A-Za-z_]\w*)$/$1()/; | ||||
3971 | |||||
3972 | return $idx; | ||||
3973 | } | ||||
3974 | |||||
3975 | sub elem { | ||||
3976 | my $self = shift; | ||||
3977 | my ($op, $cx, $left, $right, $padname) = @_; | ||||
3978 | my($array, $idx) = ($op->first, $op->first->sibling); | ||||
3979 | |||||
3980 | $idx = $self->elem_or_slice_single_index($idx); | ||||
3981 | |||||
3982 | unless ($array->name eq $padname) { # Maybe this has been fixed | ||||
3983 | $array = $array->first; # skip rv2av (or ex-rv2av in _53+) | ||||
3984 | } | ||||
3985 | if (my $array_name=$self->elem_or_slice_array_name | ||||
3986 | ($array, $left, $padname, 1)) { | ||||
3987 | return ($array_name =~ /->\z/ | ||||
3988 | ? $array_name | ||||
3989 | : $array_name eq '#' ? '${#}' : "\$" . $array_name) | ||||
3990 | . $left . $idx . $right; | ||||
3991 | } else { | ||||
3992 | # $x[20][3]{hi} or expr->[20] | ||||
3993 | my $arrow = is_subscriptable($array) ? "" : "->"; | ||||
3994 | return $self->deparse($array, 24) . $arrow . $left . $idx . $right; | ||||
3995 | } | ||||
3996 | |||||
3997 | } | ||||
3998 | |||||
3999 | # a simplified version of elem_or_slice_array_name() | ||||
4000 | # for the use of pp_multideref | ||||
4001 | |||||
4002 | sub multideref_var_name { | ||||
4003 | my $self = shift; | ||||
4004 | my ($gv, $is_hash) = @_; | ||||
4005 | |||||
4006 | my ($name, $quoted) = | ||||
4007 | $self->stash_variable_name( $is_hash ? '%' : '@', $gv); | ||||
4008 | return $quoted ? "$name->" | ||||
4009 | : $name eq '#' | ||||
4010 | ? '${#}' # avoid ${#}[1] => $#[1] | ||||
4011 | : '$' . $name; | ||||
4012 | } | ||||
4013 | |||||
4014 | |||||
4015 | sub pp_multideref { | ||||
4016 | my $self = shift; | ||||
4017 | my($op, $cx) = @_; | ||||
4018 | my $text = ""; | ||||
4019 | |||||
4020 | if ($op->private & OPpMULTIDEREF_EXISTS) { | ||||
4021 | $text = $self->keyword("exists"). " "; | ||||
4022 | } | ||||
4023 | elsif ($op->private & OPpMULTIDEREF_DELETE) { | ||||
4024 | $text = $self->keyword("delete"). " "; | ||||
4025 | } | ||||
4026 | elsif ($op->private & OPpLVAL_INTRO) { | ||||
4027 | $text = $self->keyword("local"). " "; | ||||
4028 | } | ||||
4029 | |||||
4030 | if ($op->first && ($op->first->flags & OPf_KIDS)) { | ||||
4031 | # arbitrary initial expression, e.g. f(1,2,3)->[...] | ||||
4032 | $text .= $self->deparse($op->first, 24); | ||||
4033 | } | ||||
4034 | |||||
4035 | my @items = $op->aux_list($self->{curcv}); | ||||
4036 | my $actions = shift @items; | ||||
4037 | |||||
4038 | my $is_hash; | ||||
4039 | my $derefs = 0; | ||||
4040 | |||||
4041 | while (1) { | ||||
4042 | if (($actions & MDEREF_ACTION_MASK) == MDEREF_reload) { | ||||
4043 | $actions = shift @items; | ||||
4044 | next; | ||||
4045 | } | ||||
4046 | |||||
4047 | $is_hash = ( | ||||
4048 | ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_pop_rv2hv_helem | ||||
4049 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_gvsv_vivify_rv2hv_helem | ||||
4050 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_padsv_vivify_rv2hv_helem | ||||
4051 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_vivify_rv2hv_helem | ||||
4052 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_padhv_helem | ||||
4053 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_gvhv_helem | ||||
4054 | ); | ||||
4055 | |||||
4056 | if ( ($actions & MDEREF_ACTION_MASK) == MDEREF_AV_padav_aelem | ||||
4057 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_padhv_helem) | ||||
4058 | { | ||||
4059 | $derefs = 1; | ||||
4060 | $text .= '$' . substr($self->padname(shift @items), 1); | ||||
4061 | } | ||||
4062 | elsif ( ($actions & MDEREF_ACTION_MASK) == MDEREF_AV_gvav_aelem | ||||
4063 | || ($actions & MDEREF_ACTION_MASK) == MDEREF_HV_gvhv_helem) | ||||
4064 | { | ||||
4065 | $derefs = 1; | ||||
4066 | $text .= $self->multideref_var_name(shift @items, $is_hash); | ||||
4067 | } | ||||
4068 | else { | ||||
4069 | if ( ($actions & MDEREF_ACTION_MASK) == | ||||
4070 | MDEREF_AV_padsv_vivify_rv2av_aelem | ||||
4071 | || ($actions & MDEREF_ACTION_MASK) == | ||||
4072 | MDEREF_HV_padsv_vivify_rv2hv_helem) | ||||
4073 | { | ||||
4074 | $text .= $self->padname(shift @items); | ||||
4075 | } | ||||
4076 | elsif ( ($actions & MDEREF_ACTION_MASK) == | ||||
4077 | MDEREF_AV_gvsv_vivify_rv2av_aelem | ||||
4078 | || ($actions & MDEREF_ACTION_MASK) == | ||||
4079 | MDEREF_HV_gvsv_vivify_rv2hv_helem) | ||||
4080 | { | ||||
4081 | $text .= $self->multideref_var_name(shift @items, $is_hash); | ||||
4082 | } | ||||
4083 | elsif ( ($actions & MDEREF_ACTION_MASK) == | ||||
4084 | MDEREF_AV_pop_rv2av_aelem | ||||
4085 | || ($actions & MDEREF_ACTION_MASK) == | ||||
4086 | MDEREF_HV_pop_rv2hv_helem) | ||||
4087 | { | ||||
4088 | if ( ($op->flags & OPf_KIDS) | ||||
4089 | && ( _op_is_or_was($op->first, OP_RV2AV) | ||||
4090 | || _op_is_or_was($op->first, OP_RV2HV)) | ||||
4091 | && ($op->first->flags & OPf_KIDS) | ||||
4092 | && ( _op_is_or_was($op->first->first, OP_AELEM) | ||||
4093 | || _op_is_or_was($op->first->first, OP_HELEM)) | ||||
4094 | ) | ||||
4095 | { | ||||
4096 | $derefs++; | ||||
4097 | } | ||||
4098 | } | ||||
4099 | |||||
4100 | $text .= '->' if !$derefs++; | ||||
4101 | } | ||||
4102 | |||||
4103 | |||||
4104 | if (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_none) { | ||||
4105 | last; | ||||
4106 | } | ||||
4107 | |||||
4108 | $text .= $is_hash ? '{' : '['; | ||||
4109 | |||||
4110 | if (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_const) { | ||||
4111 | my $key = shift @items; | ||||
4112 | if ($is_hash) { | ||||
4113 | $text .= $self->const($key, $cx); | ||||
4114 | } | ||||
4115 | else { | ||||
4116 | $text .= $key; | ||||
4117 | } | ||||
4118 | } | ||||
4119 | elsif (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_padsv) { | ||||
4120 | $text .= $self->padname(shift @items); | ||||
4121 | } | ||||
4122 | elsif (($actions & MDEREF_INDEX_MASK) == MDEREF_INDEX_gvsv) { | ||||
4123 | $text .= '$' . ($self->stash_variable_name('$', shift @items))[0]; | ||||
4124 | } | ||||
4125 | |||||
4126 | $text .= $is_hash ? '}' : ']'; | ||||
4127 | |||||
4128 | if ($actions & MDEREF_FLAG_last) { | ||||
4129 | last; | ||||
4130 | } | ||||
4131 | $actions >>= MDEREF_SHIFT; | ||||
4132 | } | ||||
4133 | |||||
4134 | return $text; | ||||
4135 | } | ||||
4136 | |||||
4137 | |||||
4138 | sub pp_aelem { maybe_local(@_, elem(@_, "[", "]", "padav")) } | ||||
4139 | sub pp_helem { maybe_local(@_, elem(@_, "{", "}", "padhv")) } | ||||
4140 | |||||
4141 | sub pp_gelem { | ||||
4142 | my $self = shift; | ||||
4143 | my($op, $cx) = @_; | ||||
4144 | my($glob, $part) = ($op->first, $op->last); | ||||
4145 | $glob = $glob->first; # skip rv2gv | ||||
4146 | $glob = $glob->first if $glob->name eq "rv2gv"; # this one's a bug | ||||
4147 | my $scope = is_scope($glob); | ||||
4148 | $glob = $self->deparse($glob, 0); | ||||
4149 | $part = $self->deparse($part, 1); | ||||
4150 | return "*" . ($scope ? "{$glob}" : $glob) . "{$part}"; | ||||
4151 | } | ||||
4152 | |||||
4153 | sub slice { | ||||
4154 | my $self = shift; | ||||
4155 | my ($op, $cx, $left, $right, $regname, $padname) = @_; | ||||
4156 | my $last; | ||||
4157 | my(@elems, $kid, $array, $list); | ||||
4158 | if (class($op) eq "LISTOP") { | ||||
4159 | $last = $op->last; | ||||
4160 | } else { # ex-hslice inside delete() | ||||
4161 | for ($kid = $op->first; !null $kid->sibling; $kid = $kid->sibling) {} | ||||
4162 | $last = $kid; | ||||
4163 | } | ||||
4164 | $array = $last; | ||||
4165 | $array = $array->first | ||||
4166 | if $array->name eq $regname or $array->name eq "null"; | ||||
4167 | $array = $self->elem_or_slice_array_name($array,$left,$padname,0); | ||||
4168 | $kid = $op->first->sibling; # skip pushmark | ||||
4169 | if ($kid->name eq "list") { | ||||
4170 | $kid = $kid->first->sibling; # skip list, pushmark | ||||
4171 | for (; !null $kid; $kid = $kid->sibling) { | ||||
4172 | push @elems, $self->deparse($kid, 6); | ||||
4173 | } | ||||
4174 | $list = join(", ", @elems); | ||||
4175 | } else { | ||||
4176 | $list = $self->elem_or_slice_single_index($kid); | ||||
4177 | } | ||||
4178 | my $lead = '@'; | ||||
4179 | $lead = '%' if $op->name =~ /^kv/i; | ||||
4180 | return $lead . $array . $left . $list . $right; | ||||
4181 | } | ||||
4182 | |||||
4183 | sub pp_aslice { maybe_local(@_, slice(@_, "[", "]", "rv2av", "padav")) } | ||||
4184 | sub pp_kvaslice { slice(@_, "[", "]", "rv2av", "padav") } | ||||
4185 | sub pp_hslice { maybe_local(@_, slice(@_, "{", "}", "rv2hv", "padhv")) } | ||||
4186 | sub pp_kvhslice { slice(@_, "{", "}", "rv2hv", "padhv") } | ||||
4187 | |||||
4188 | sub pp_lslice { | ||||
4189 | my $self = shift; | ||||
4190 | my($op, $cx) = @_; | ||||
4191 | my $idx = $op->first; | ||||
4192 | my $list = $op->last; | ||||
4193 | my(@elems, $kid); | ||||
4194 | $list = $self->deparse($list, 1); | ||||
4195 | $idx = $self->deparse($idx, 1); | ||||
4196 | return "($list)" . "[$idx]"; | ||||
4197 | } | ||||
4198 | |||||
4199 | sub want_scalar { | ||||
4200 | my $op = shift; | ||||
4201 | return ($op->flags & OPf_WANT) == OPf_WANT_SCALAR; | ||||
4202 | } | ||||
4203 | |||||
4204 | sub want_list { | ||||
4205 | my $op = shift; | ||||
4206 | return ($op->flags & OPf_WANT) == OPf_WANT_LIST; | ||||
4207 | } | ||||
4208 | |||||
4209 | sub _method { | ||||
4210 | my $self = shift; | ||||
4211 | my($op, $cx) = @_; | ||||
4212 | my $kid = $op->first->sibling; # skip pushmark | ||||
4213 | my($meth, $obj, @exprs); | ||||
4214 | if ($kid->name eq "list" and want_list $kid) { | ||||
4215 | # When an indirect object isn't a bareword but the args are in | ||||
4216 | # parens, the parens aren't part of the method syntax (the LLAFR | ||||
4217 | # doesn't apply), but they make a list with OPf_PARENS set that | ||||
4218 | # doesn't get flattened by the append_elem that adds the method, | ||||
4219 | # making a (object, arg1, arg2, ...) list where the object | ||||
4220 | # usually is. This can be distinguished from | ||||
4221 | # '($obj, $arg1, $arg2)->meth()' (which is legal if $arg2 is an | ||||
4222 | # object) because in the later the list is in scalar context | ||||
4223 | # as the left side of -> always is, while in the former | ||||
4224 | # the list is in list context as method arguments always are. | ||||
4225 | # (Good thing there aren't method prototypes!) | ||||
4226 | $meth = $kid->sibling; | ||||
4227 | $kid = $kid->first->sibling; # skip pushmark | ||||
4228 | $obj = $kid; | ||||
4229 | $kid = $kid->sibling; | ||||
4230 | for (; not null $kid; $kid = $kid->sibling) { | ||||
4231 | push @exprs, $kid; | ||||
4232 | } | ||||
4233 | } else { | ||||
4234 | $obj = $kid; | ||||
4235 | $kid = $kid->sibling; | ||||
4236 | for (; !null ($kid->sibling) && $kid->name!~/^method(?:_named)?\z/; | ||||
4237 | $kid = $kid->sibling) { | ||||
4238 | push @exprs, $kid | ||||
4239 | } | ||||
4240 | $meth = $kid; | ||||
4241 | } | ||||
4242 | |||||
4243 | if ($meth->name eq "method_named") { | ||||
4244 | $meth = $self->meth_sv($meth)->PV; | ||||
4245 | } elsif ($meth->name eq "method_super") { | ||||
4246 | $meth = "SUPER::".$self->meth_sv($meth)->PV; | ||||
4247 | } elsif ($meth->name eq "method_redir") { | ||||
4248 | $meth = $self->meth_rclass_sv($meth)->PV.'::'.$self->meth_sv($meth)->PV; | ||||
4249 | } elsif ($meth->name eq "method_redir_super") { | ||||
4250 | $meth = $self->meth_rclass_sv($meth)->PV.'::SUPER::'. | ||||
4251 | $self->meth_sv($meth)->PV; | ||||
4252 | } else { | ||||
4253 | $meth = $meth->first; | ||||
4254 | if ($meth->name eq "const") { | ||||
4255 | # As of 5.005_58, this case is probably obsoleted by the | ||||
4256 | # method_named case above | ||||
4257 | $meth = $self->const_sv($meth)->PV; # needs to be bare | ||||
4258 | } | ||||
4259 | } | ||||
4260 | |||||
4261 | return { method => $meth, variable_method => ref($meth), | ||||
4262 | object => $obj, args => \@exprs }, | ||||
4263 | $cx; | ||||
4264 | } | ||||
4265 | |||||
4266 | # compat function only | ||||
4267 | sub method { | ||||
4268 | my $self = shift; | ||||
4269 | my $info = $self->_method(@_); | ||||
4270 | return $self->e_method( $self->_method(@_) ); | ||||
4271 | } | ||||
4272 | |||||
4273 | sub e_method { | ||||
4274 | my ($self, $info, $cx) = @_; | ||||
4275 | my $obj = $self->deparse($info->{object}, 24); | ||||
4276 | |||||
4277 | my $meth = $info->{method}; | ||||
4278 | $meth = $self->deparse($meth, 1) if $info->{variable_method}; | ||||
4279 | my $args = join(", ", map { $self->deparse($_, 6) } @{$info->{args}} ); | ||||
4280 | if ($info->{object}->name eq 'scope' && want_list $info->{object}) { | ||||
4281 | # method { $object } | ||||
4282 | # This must be deparsed this way to preserve list context | ||||
4283 | # of $object. | ||||
4284 | my $need_paren = $cx >= 6; | ||||
4285 | return '(' x $need_paren | ||||
4286 | . $meth . substr($obj,2) # chop off the "do" | ||||
4287 | . " $args" | ||||
4288 | . ')' x $need_paren; | ||||
4289 | } | ||||
4290 | my $kid = $obj . "->" . $meth; | ||||
4291 | if (length $args) { | ||||
4292 | return $kid . "(" . $args . ")"; # parens mandatory | ||||
4293 | } else { | ||||
4294 | return $kid; | ||||
4295 | } | ||||
4296 | } | ||||
4297 | |||||
4298 | # returns "&" if the prototype doesn't match the args, | ||||
4299 | # or ("", $args_after_prototype_demunging) if it does. | ||||
4300 | sub check_proto { | ||||
4301 | my $self = shift; | ||||
4302 | return "&" if $self->{'noproto'}; | ||||
4303 | my($proto, @args) = @_; | ||||
4304 | my($arg, $real); | ||||
4305 | my $doneok = 0; | ||||
4306 | my @reals; | ||||
4307 | # An unbackslashed @ or % gobbles up the rest of the args | ||||
4308 | 1 while $proto =~ s/(?<!\\)([@%])[^\]]+$/$1/; | ||||
4309 | $proto =~ s/^\s*//; | ||||
4310 | while ($proto) { | ||||
4311 | $proto =~ s/^(\\?[\$\@&%*_]|\\\[[\$\@&%*]+\]|;|)\s*//; | ||||
4312 | my $chr = $1; | ||||
4313 | if ($chr eq "") { | ||||
4314 | return "&" if @args; | ||||
4315 | } elsif ($chr eq ";") { | ||||
4316 | $doneok = 1; | ||||
4317 | } elsif ($chr eq "@" or $chr eq "%") { | ||||
4318 | push @reals, map($self->deparse($_, 6), @args); | ||||
4319 | @args = (); | ||||
4320 | } else { | ||||
4321 | $arg = shift @args; | ||||
4322 | last unless $arg; | ||||
4323 | if ($chr eq "\$" || $chr eq "_") { | ||||
4324 | if (want_scalar $arg) { | ||||
4325 | push @reals, $self->deparse($arg, 6); | ||||
4326 | } else { | ||||
4327 | return "&"; | ||||
4328 | } | ||||
4329 | } elsif ($chr eq "&") { | ||||
4330 | if ($arg->name =~ /^(s?refgen|undef)$/) { | ||||
4331 | push @reals, $self->deparse($arg, 6); | ||||
4332 | } else { | ||||
4333 | return "&"; | ||||
4334 | } | ||||
4335 | } elsif ($chr eq "*") { | ||||
4336 | if ($arg->name =~ /^s?refgen$/ | ||||
4337 | and $arg->first->first->name eq "rv2gv") | ||||
4338 | { | ||||
4339 | $real = $arg->first->first; # skip refgen, null | ||||
4340 | if ($real->first->name eq "gv") { | ||||
4341 | push @reals, $self->deparse($real, 6); | ||||
4342 | } else { | ||||
4343 | push @reals, $self->deparse($real->first, 6); | ||||
4344 | } | ||||
4345 | } else { | ||||
4346 | return "&"; | ||||
4347 | } | ||||
4348 | } elsif (substr($chr, 0, 1) eq "\\") { | ||||
4349 | $chr =~ tr/\\[]//d; | ||||
4350 | if ($arg->name =~ /^s?refgen$/ and | ||||
4351 | !null($real = $arg->first) and | ||||
4352 | ($chr =~ /\$/ && is_scalar($real->first) | ||||
4353 | or ($chr =~ /@/ | ||||
4354 | && class($real->first->sibling) ne 'NULL' | ||||
4355 | && $real->first->sibling->name | ||||
4356 | =~ /^(rv2|pad)av$/) | ||||
4357 | or ($chr =~ /%/ | ||||
4358 | && class($real->first->sibling) ne 'NULL' | ||||
4359 | && $real->first->sibling->name | ||||
4360 | =~ /^(rv2|pad)hv$/) | ||||
4361 | #or ($chr =~ /&/ # This doesn't work | ||||
4362 | # && $real->first->name eq "rv2cv") | ||||
4363 | or ($chr =~ /\*/ | ||||
4364 | && $real->first->name eq "rv2gv"))) | ||||
4365 | { | ||||
4366 | push @reals, $self->deparse($real, 6); | ||||
4367 | } else { | ||||
4368 | return "&"; | ||||
4369 | } | ||||
4370 | } | ||||
4371 | } | ||||
4372 | } | ||||
4373 | return "&" if $proto and !$doneok; # too few args and no ';' | ||||
4374 | return "&" if @args; # too many args | ||||
4375 | return ("", join ", ", @reals); | ||||
4376 | } | ||||
4377 | |||||
4378 | sub retscalar { | ||||
4379 | my $name = $_[0]->name; | ||||
4380 | # XXX There has to be a better way of doing this scalar-op check. | ||||
4381 | # Currently PL_opargs is not exposed. | ||||
4382 | if ($name eq 'null') { | ||||
4383 | $name = substr B::ppname($_[0]->targ), 3 | ||||
4384 | } | ||||
4385 | $name =~ /^(?:scalar|pushmark|wantarray|const|gvsv|gv|padsv|rv2gv | ||||
4386 | |rv2sv|av2arylen|anoncode|prototype|srefgen|ref|bless | ||||
4387 | |regcmaybe|regcreset|regcomp|qr|subst|substcont|trans | ||||
4388 | |transr|sassign|chop|schop|chomp|schomp|defined|undef | ||||
4389 | |study|pos|preinc|i_preinc|predec|i_predec|postinc | ||||
4390 | |i_postinc|postdec|i_postdec|pow|multiply|i_multiply | ||||
4391 | |divide|i_divide|modulo|i_modulo|add|i_add|subtract | ||||
4392 | |i_subtract|concat|stringify|left_shift|right_shift|lt | ||||
4393 | |i_lt|gt|i_gt|le|i_le|ge|i_ge|eq|i_eq|ne|i_ne|ncmp|i_ncmp | ||||
4394 | |slt|sgt|sle|sge|seq|sne|scmp|[sn]?bit_(?:and|x?or)|negate | ||||
4395 | |i_negate|not|[sn]?complement|smartmatch|atan2|sin|cos | ||||
4396 | |rand|srand|exp|log|sqrt|int|hex|oct|abs|length|substr | ||||
4397 | |vec|index|rindex|sprintf|formline|ord|chr|crypt|ucfirst | ||||
4398 | |lcfirst|uc|lc|quotemeta|aelemfast|aelem|exists|helem | ||||
4399 | |pack|join|anonlist|anonhash|push|pop|shift|unshift|xor | ||||
4400 | |andassign|orassign|dorassign|warn|die|reset|nextstate | ||||
4401 | |dbstate|unstack|last|next|redo|dump|goto|exit|open|close | ||||
4402 | |pipe_op|fileno|umask|binmode|tie|untie|tied|dbmopen | ||||
4403 | |dbmclose|select|getc|read|enterwrite|prtf|print|say | ||||
4404 | |sysopen|sysseek|sysread|syswrite|eof|tell|seek|truncate | ||||
4405 | |fcntl|ioctl|flock|send|recv|socket|sockpair|bind|connect | ||||
4406 | |listen|accept|shutdown|gsockopt|ssockopt|getsockname | ||||
4407 | |getpeername|ftrread|ftrwrite|ftrexec|fteread|ftewrite | ||||
4408 | |fteexec|ftis|ftsize|ftmtime|ftatime|ftctime|ftrowned | ||||
4409 | |fteowned|ftzero|ftsock|ftchr|ftblk|ftfile|ftdir|ftpipe | ||||
4410 | |ftsuid|ftsgid|ftsvtx|ftlink|fttty|fttext|ftbinary|chdir | ||||
4411 | |chown|chroot|unlink|chmod|utime|rename|link|symlink | ||||
4412 | |readlink|mkdir|rmdir|open_dir|telldir|seekdir|rewinddir | ||||
4413 | |closedir|fork|wait|waitpid|system|exec|kill|getppid | ||||
4414 | |getpgrp|setpgrp|getpriority|setpriority|time|alarm|sleep | ||||
4415 | |shmget|shmctl|shmread|shmwrite|msgget|msgctl|msgsnd | ||||
4416 | |msgrcv|semop|semget|semctl|hintseval|shostent|snetent | ||||
4417 | |sprotoent|sservent|ehostent|enetent|eprotoent|eservent | ||||
4418 | |spwent|epwent|sgrent|egrent|getlogin|syscall|lock|runcv | ||||
4419 | |fc)\z/x | ||||
4420 | } | ||||
4421 | |||||
4422 | sub pp_entersub { | ||||
4423 | my $self = shift; | ||||
4424 | my($op, $cx) = @_; | ||||
4425 | return $self->e_method($self->_method($op, $cx)) | ||||
4426 | unless null $op->first->sibling; | ||||
4427 | my $prefix = ""; | ||||
4428 | my $amper = ""; | ||||
4429 | my($kid, @exprs); | ||||
4430 | if ($op->flags & OPf_SPECIAL && !($op->flags & OPf_MOD)) { | ||||
4431 | $prefix = "do "; | ||||
4432 | } elsif ($op->private & OPpENTERSUB_AMPER) { | ||||
4433 | $amper = "&"; | ||||
4434 | } | ||||
4435 | $kid = $op->first; | ||||
4436 | $kid = $kid->first->sibling; # skip ex-list, pushmark | ||||
4437 | for (; not null $kid->sibling; $kid = $kid->sibling) { | ||||
4438 | push @exprs, $kid; | ||||
4439 | } | ||||
4440 | my $simple = 0; | ||||
4441 | my $proto = undef; | ||||
4442 | my $lexical; | ||||
4443 | if (is_scope($kid)) { | ||||
4444 | $amper = "&"; | ||||
4445 | $kid = "{" . $self->deparse($kid, 0) . "}"; | ||||
4446 | } elsif ($kid->first->name eq "gv") { | ||||
4447 | my $gv = $self->gv_or_padgv($kid->first); | ||||
4448 | my $cv; | ||||
4449 | if (class($gv) eq 'GV' && class($cv = $gv->CV) ne "SPECIAL" | ||||
4450 | || $gv->FLAGS & SVf_ROK && class($cv = $gv->RV) eq 'CV') { | ||||
4451 | $proto = $cv->PV if $cv->FLAGS & SVf_POK; | ||||
4452 | } | ||||
4453 | $simple = 1; # only calls of named functions can be prototyped | ||||
4454 | $kid = $self->deparse($kid, 24); | ||||
4455 | my $fq; | ||||
4456 | # Fully qualify any sub name that conflicts with a lexical. | ||||
4457 | if ($self->lex_in_scope("&$kid") | ||||
4458 | || $self->lex_in_scope("&$kid", 1)) | ||||
4459 | { | ||||
4460 | $fq++; | ||||
4461 | } elsif (!$amper) { | ||||
4462 | if ($kid eq 'main::') { | ||||
4463 | $kid = '::'; | ||||
4464 | } | ||||
4465 | else { | ||||
4466 | if ($kid !~ /::/ && $kid ne 'x') { | ||||
4467 | # Fully qualify any sub name that is also a keyword. While | ||||
4468 | # we could check the import flag, we cannot guarantee that | ||||
4469 | # the code deparsed so far would set that flag, so we qual- | ||||
4470 | # ify the names regardless of importation. | ||||
4471 | if (exists $feature_keywords{$kid}) { | ||||
4472 | $fq++ if $self->feature_enabled($kid); | ||||
4473 | } elsif (do { local $@; local $SIG{__DIE__}; | ||||
4474 | eval { () = prototype "CORE::$kid"; 1 } }) { | ||||
4475 | $fq++ | ||||
4476 | } | ||||
4477 | } | ||||
4478 | if ($kid !~ /^(?:\w|::)(?:[\w\d]|::(?!\z))*\z/) { | ||||
4479 | $kid = single_delim("q", "'", $kid, $self) . '->'; | ||||
4480 | } | ||||
4481 | } | ||||
4482 | } | ||||
4483 | $fq and substr $kid, 0, 0, = $self->{'curstash'}.'::'; | ||||
4484 | } elsif (is_scalar ($kid->first) && $kid->first->name ne 'rv2cv') { | ||||
4485 | $amper = "&"; | ||||
4486 | $kid = $self->deparse($kid, 24); | ||||
4487 | } else { | ||||
4488 | $prefix = ""; | ||||
4489 | my $grandkid = $kid->first; | ||||
4490 | my $arrow = ($lexical = $grandkid->name eq "padcv") | ||||
4491 | || is_subscriptable($grandkid) | ||||
4492 | ? "" | ||||
4493 | : "->"; | ||||
4494 | $kid = $self->deparse($kid, 24) . $arrow; | ||||
4495 | if ($lexical) { | ||||
4496 | my $padlist = $self->{'curcv'}->PADLIST; | ||||
4497 | my $padoff = $grandkid->targ; | ||||
4498 | my $padname = $padlist->ARRAYelt(0)->ARRAYelt($padoff); | ||||
4499 | my $protocv = $padname->FLAGS & SVpad_STATE | ||||
4500 | ? $padlist->ARRAYelt(1)->ARRAYelt($padoff) | ||||
4501 | : $padname->PROTOCV; | ||||
4502 | if ($protocv->FLAGS & SVf_POK) { | ||||
4503 | $proto = $protocv->PV | ||||
4504 | } | ||||
4505 | $simple = 1; | ||||
4506 | } | ||||
4507 | } | ||||
4508 | |||||
4509 | # Doesn't matter how many prototypes there are, if | ||||
4510 | # they haven't happened yet! | ||||
4511 | my $declared = $lexical || exists $self->{'subs_declared'}{$kid}; | ||||
4512 | if (not $declared and $self->{'in_coderef2text'}) { | ||||
4513 | 2 | 19µs | 2 | 33µs | # spent 20µs (8+13) within B::Deparse::BEGIN@4513 which was called:
# once (8µs+13µs) by YAML::XS::BEGIN@57 at line 4513 # spent 20µs making 1 call to B::Deparse::BEGIN@4513
# spent 12µs making 1 call to strict::unimport |
4514 | 2 | 339µs | 2 | 29µs | # spent 18µs (6+11) within B::Deparse::BEGIN@4514 which was called:
# once (6µs+11µs) by YAML::XS::BEGIN@57 at line 4514 # spent 18µs making 1 call to B::Deparse::BEGIN@4514
# spent 12µs making 1 call to warnings::unimport |
4515 | $declared = | ||||
4516 | ( | ||||
4517 | defined &{ ${$self->{'curstash'}."::"}{$kid} } | ||||
4518 | && !exists | ||||
4519 | $self->{'subs_deparsed'}{$self->{'curstash'}."::".$kid} | ||||
4520 | && defined prototype $self->{'curstash'}."::".$kid | ||||
4521 | ); | ||||
4522 | } | ||||
4523 | if (!$declared && defined($proto)) { | ||||
4524 | # Avoid "too early to check prototype" warning | ||||
4525 | ($amper, $proto) = ('&'); | ||||
4526 | } | ||||
4527 | |||||
4528 | my $args; | ||||
4529 | my $listargs = 1; | ||||
4530 | if ($declared and defined $proto and not $amper) { | ||||
4531 | ($amper, $args) = $self->check_proto($proto, @exprs); | ||||
4532 | $listargs = $amper; | ||||
4533 | } | ||||
4534 | if ($listargs) { | ||||
4535 | $args = join(", ", map( | ||||
4536 | ($_->flags & OPf_WANT) == OPf_WANT_SCALAR | ||||
4537 | && !retscalar($_) | ||||
4538 | ? $self->maybe_parens_unop('scalar', $_, 6) | ||||
4539 | : $self->deparse($_, 6), | ||||
4540 | @exprs | ||||
4541 | )); | ||||
4542 | } | ||||
4543 | if ($prefix or $amper) { | ||||
4544 | if ($kid eq '&') { $kid = "{$kid}" } # &{&} cannot be written as && | ||||
4545 | if ($op->flags & OPf_STACKED) { | ||||
4546 | return $prefix . $amper . $kid . "(" . $args . ")"; | ||||
4547 | } else { | ||||
4548 | return $prefix . $amper. $kid; | ||||
4549 | } | ||||
4550 | } else { | ||||
4551 | # It's a syntax error to call CORE::GLOBAL::foo with a prefix, | ||||
4552 | # so it must have been translated from a keyword call. Translate | ||||
4553 | # it back. | ||||
4554 | $kid =~ s/^CORE::GLOBAL:://; | ||||
4555 | |||||
4556 | my $dproto = defined($proto) ? $proto : "undefined"; | ||||
4557 | my $scalar_proto = $dproto =~ /^;*(?:[\$*_+]|\\.|\\\[[^]]\])\z/; | ||||
4558 | if (!$declared) { | ||||
4559 | return "$kid(" . $args . ")"; | ||||
4560 | } elsif ($dproto =~ /^\s*\z/) { | ||||
4561 | return $kid; | ||||
4562 | } elsif ($scalar_proto and is_scalar($exprs[0])) { | ||||
4563 | # is_scalar is an excessively conservative test here: | ||||
4564 | # really, we should be comparing to the precedence of the | ||||
4565 | # top operator of $exprs[0] (ala unop()), but that would | ||||
4566 | # take some major code restructuring to do right. | ||||
4567 | return $self->maybe_parens_func($kid, $args, $cx, 16); | ||||
4568 | } elsif (not $scalar_proto and defined($proto) || $simple) { #' | ||||
4569 | return $self->maybe_parens_func($kid, $args, $cx, 5); | ||||
4570 | } else { | ||||
4571 | return "$kid(" . $args . ")"; | ||||
4572 | } | ||||
4573 | } | ||||
4574 | } | ||||
4575 | |||||
4576 | sub pp_enterwrite { unop(@_, "write") } | ||||
4577 | |||||
4578 | # escape things that cause interpolation in double quotes, | ||||
4579 | # but not character escapes | ||||
4580 | sub uninterp { | ||||
4581 | my($str) = @_; | ||||
4582 | $str =~ s/(^|\G|[^\\])((?:\\\\)*)([\$\@]|\\[uUlLQE])/$1$2\\$3/g; | ||||
4583 | return $str; | ||||
4584 | } | ||||
4585 | |||||
4586 | { | ||||
4587 | 1 | 100ns | my $bal; | ||
4588 | # spent 12µs (9+3) within B::Deparse::BEGIN@4588 which was called:
# once (9µs+3µs) by YAML::XS::BEGIN@57 at line 4599 | ||||
4589 | 2 | 53µs | 2 | 39µs | # spent 23µs (7+16) within B::Deparse::BEGIN@4589 which was called:
# once (7µs+16µs) by YAML::XS::BEGIN@57 at line 4589 # spent 23µs making 1 call to B::Deparse::BEGIN@4589
# spent 16µs making 1 call to re::import |
4590 | # Matches any string which is balanced with respect to {braces} | ||||
4591 | $bal = qr( | ||||
4592 | (?: | ||||
4593 | [^\\{}] | ||||
4594 | | \\\\ | ||||
4595 | | \\[{}] | ||||
4596 | | \{(??{$bal})\} | ||||
4597 | )* | ||||
4598 | 1 | 10µs | 1 | 3µs | )x; # spent 3µs making 1 call to B::Deparse::CORE:qr |
4599 | 1 | 446µs | 1 | 12µs | } # spent 12µs making 1 call to B::Deparse::BEGIN@4588 |
4600 | |||||
4601 | # the same, but treat $|, $), $( and $ at the end of the string differently | ||||
4602 | # and leave comments unmangled for the sake of /x and (?x). | ||||
4603 | sub re_uninterp { | ||||
4604 | my($str) = @_; | ||||
4605 | |||||
4606 | $str =~ s/ | ||||
4607 | ( ^|\G # $1 | ||||
4608 | | [^\\] | ||||
4609 | ) | ||||
4610 | |||||
4611 | ( # $2 | ||||
4612 | (?:\\\\)* | ||||
4613 | ) | ||||
4614 | |||||
4615 | ( # $3 | ||||
4616 | ( \(\?\??\{$bal\}\) # $4 (skip over (?{}) and (??{}) blocks) | ||||
4617 | | \#[^\n]* # (skip over comments) | ||||
4618 | ) | ||||
4619 | | [\$\@] | ||||
4620 | (?!\||\)|\(|$|\s) | ||||
4621 | | \\[uUlLQE] | ||||
4622 | ) | ||||
4623 | |||||
4624 | /defined($4) && length($4) ? "$1$2$4" : "$1$2\\$3"/xeg; | ||||
4625 | |||||
4626 | return $str; | ||||
4627 | } | ||||
4628 | } | ||||
4629 | |||||
4630 | # character escapes, but not delimiters that might need to be escaped | ||||
4631 | 1 | 100ns | sub escape_str { # ASCII, UTF8 | ||
4632 | my($str) = @_; | ||||
4633 | $str =~ s/(.)/ord($1) > 255 ? sprintf("\\x{%x}", ord($1)) : $1/eg; | ||||
4634 | $str =~ s/\a/\\a/g; | ||||
4635 | # $str =~ s/\cH/\\b/g; # \b means something different in a regex; and \cH | ||||
4636 | # isn't a backspace in EBCDIC | ||||
4637 | $str =~ s/\t/\\t/g; | ||||
4638 | $str =~ s/\n/\\n/g; | ||||
4639 | $str =~ s/\e/\\e/g; | ||||
4640 | $str =~ s/\f/\\f/g; | ||||
4641 | $str =~ s/\r/\\r/g; | ||||
4642 | $str =~ s/([\cA-\cZ])/'\\c' . $unctrl{$1}/ge; | ||||
4643 | $str =~ s/([[:^print:]])/sprintf("\\%03o", ord($1))/age; | ||||
4644 | return $str; | ||||
4645 | } | ||||
4646 | |||||
4647 | # For regexes. Leave whitespace unmangled in case of /x or (?x). | ||||
4648 | sub escape_re { | ||||
4649 | my($str) = @_; | ||||
4650 | $str =~ s/(.)/ord($1) > 255 ? sprintf("\\x{%x}", ord($1)) : $1/eg; | ||||
4651 | $str =~ s/([[:^print:]])/ | ||||
4652 | ($1 =~ y! \t\n!!) ? $1 : sprintf("\\%03o", ord($1))/age; | ||||
4653 | $str =~ s/\n/\n\f/g; | ||||
4654 | return $str; | ||||
4655 | } | ||||
4656 | |||||
4657 | # Don't do this for regexen | ||||
4658 | sub unback { | ||||
4659 | my($str) = @_; | ||||
4660 | $str =~ s/\\/\\\\/g; | ||||
4661 | return $str; | ||||
4662 | } | ||||
4663 | |||||
4664 | # Remove backslashes which precede literal control characters, | ||||
4665 | # to avoid creating ambiguity when we escape the latter. | ||||
4666 | sub re_unback { | ||||
4667 | my($str) = @_; | ||||
4668 | |||||
4669 | # the insane complexity here is due to the behaviour of "\c\" | ||||
4670 | $str =~ s/(^|[^\\]|\\c\\)(?<!\\c)\\(\\\\)*(?=[[:^print:]])/$1$2/g; | ||||
4671 | return $str; | ||||
4672 | } | ||||
4673 | |||||
4674 | sub balanced_delim { | ||||
4675 | my($str) = @_; | ||||
4676 | my @str = split //, $str; | ||||
4677 | my($ar, $open, $close, $fail, $c, $cnt, $last_bs); | ||||
4678 | for $ar (['[',']'], ['(',')'], ['<','>'], ['{','}']) { | ||||
4679 | ($open, $close) = @$ar; | ||||
4680 | $fail = 0; $cnt = 0; $last_bs = 0; | ||||
4681 | for $c (@str) { | ||||
4682 | if ($c eq $open) { | ||||
4683 | $fail = 1 if $last_bs; | ||||
4684 | $cnt++; | ||||
4685 | } elsif ($c eq $close) { | ||||
4686 | $fail = 1 if $last_bs; | ||||
4687 | $cnt--; | ||||
4688 | if ($cnt < 0) { | ||||
4689 | # qq()() isn't ")(" | ||||
4690 | $fail = 1; | ||||
4691 | last; | ||||
4692 | } | ||||
4693 | } | ||||
4694 | $last_bs = $c eq '\\'; | ||||
4695 | } | ||||
4696 | $fail = 1 if $cnt != 0; | ||||
4697 | return ($open, "$open$str$close") if not $fail; | ||||
4698 | } | ||||
4699 | return ("", $str); | ||||
4700 | } | ||||
4701 | |||||
4702 | sub single_delim { | ||||
4703 | my($q, $default, $str, $self) = @_; | ||||
4704 | return "$default$str$default" if $default and index($str, $default) == -1; | ||||
4705 | my $coreq = $self->keyword($q); # maybe CORE::q | ||||
4706 | if ($q ne 'qr') { | ||||
4707 | (my $succeed, $str) = balanced_delim($str); | ||||
4708 | return "$coreq$str" if $succeed; | ||||
4709 | } | ||||
4710 | for my $delim ('/', '"', '#') { | ||||
4711 | return "$coreq$delim" . $str . $delim if index($str, $delim) == -1; | ||||
4712 | } | ||||
4713 | if ($default) { | ||||
4714 | $str =~ s/$default/\\$default/g; | ||||
4715 | return "$default$str$default"; | ||||
4716 | } else { | ||||
4717 | $str =~ s[/][\\/]g; | ||||
4718 | return "$coreq/$str/"; | ||||
4719 | } | ||||
4720 | } | ||||
4721 | |||||
4722 | 1 | 0s | my $max_prec; | ||
4723 | 1 | 317µs | 2 | 5µs | # spent 3µs within B::Deparse::BEGIN@4723 which was called:
# once (3µs+0s) by YAML::XS::BEGIN@57 at line 4723 # spent 3µs making 1 call to B::Deparse::BEGIN@4723
# spent 2µs making 1 call to main::CORE:pack |
4724 | |||||
4725 | # Split a floating point number into an integer mantissa and a binary | ||||
4726 | # exponent. Assumes you've already made sure the number isn't zero or | ||||
4727 | # some weird infinity or NaN. | ||||
4728 | sub split_float { | ||||
4729 | my($f) = @_; | ||||
4730 | my $exponent = 0; | ||||
4731 | if ($f == int($f)) { | ||||
4732 | while ($f % 2 == 0) { | ||||
4733 | $f /= 2; | ||||
4734 | $exponent++; | ||||
4735 | } | ||||
4736 | } else { | ||||
4737 | while ($f != int($f)) { | ||||
4738 | $f *= 2; | ||||
4739 | $exponent--; | ||||
4740 | } | ||||
4741 | } | ||||
4742 | my $mantissa = sprintf("%.0f", $f); | ||||
4743 | return ($mantissa, $exponent); | ||||
4744 | } | ||||
4745 | |||||
4746 | sub const { | ||||
4747 | my $self = shift; | ||||
4748 | my($sv, $cx) = @_; | ||||
4749 | if ($self->{'use_dumper'}) { | ||||
4750 | return $self->const_dumper($sv, $cx); | ||||
4751 | } | ||||
4752 | if (class($sv) eq "SPECIAL") { | ||||
4753 | # sv_undef, sv_yes, sv_no | ||||
4754 | return $$sv == 3 ? $self->maybe_parens("!1", $cx, 21) | ||||
4755 | : ('undef', '1')[$$sv-1]; | ||||
4756 | } | ||||
4757 | if (class($sv) eq "NULL") { | ||||
4758 | return 'undef'; | ||||
4759 | } | ||||
4760 | # convert a version object into the "v1.2.3" string in its V magic | ||||
4761 | if ($sv->FLAGS & SVs_RMG) { | ||||
4762 | for (my $mg = $sv->MAGIC; $mg; $mg = $mg->MOREMAGIC) { | ||||
4763 | return $mg->PTR if $mg->TYPE eq 'V'; | ||||
4764 | } | ||||
4765 | } | ||||
4766 | |||||
4767 | if ($sv->FLAGS & SVf_IOK) { | ||||
4768 | my $str = $sv->int_value; | ||||
4769 | $str = $self->maybe_parens($str, $cx, 21) if $str < 0; | ||||
4770 | return $str; | ||||
4771 | } elsif ($sv->FLAGS & SVf_NOK) { | ||||
4772 | my $nv = $sv->NV; | ||||
4773 | if ($nv == 0) { | ||||
4774 | 1 | 800ns | if (pack("F", $nv) eq pack("F", 0)) { # spent 800ns making 1 call to main::CORE:pack | ||
4775 | # positive zero | ||||
4776 | return "0"; | ||||
4777 | } else { | ||||
4778 | # negative zero | ||||
4779 | return $self->maybe_parens("-.0", $cx, 21); | ||||
4780 | } | ||||
4781 | } elsif (1/$nv == 0) { | ||||
4782 | if ($nv > 0) { | ||||
4783 | # positive infinity | ||||
4784 | return $self->maybe_parens("9**9**9", $cx, 22); | ||||
4785 | } else { | ||||
4786 | # negative infinity | ||||
4787 | return $self->maybe_parens("-9**9**9", $cx, 21); | ||||
4788 | } | ||||
4789 | } elsif ($nv != $nv) { | ||||
4790 | # NaN | ||||
4791 | 1 | 600ns | if (pack("F", $nv) eq pack("F", sin(9**9**9))) { # spent 600ns making 1 call to main::CORE:pack | ||
4792 | # the normal kind | ||||
4793 | return "sin(9**9**9)"; | ||||
4794 | 1 | 300ns | } elsif (pack("F", $nv) eq pack("F", -sin(9**9**9))) { # spent 300ns making 1 call to main::CORE:pack | ||
4795 | # the inverted kind | ||||
4796 | return $self->maybe_parens("-sin(9**9**9)", $cx, 21); | ||||
4797 | } else { | ||||
4798 | # some other kind | ||||
4799 | my $hex = unpack("h*", pack("F", $nv)); | ||||
4800 | return qq'unpack("F", pack("h*", "$hex"))'; | ||||
4801 | } | ||||
4802 | } | ||||
4803 | # first, try the default stringification | ||||
4804 | my $str = "$nv"; | ||||
4805 | if ($str != $nv) { | ||||
4806 | # failing that, try using more precision | ||||
4807 | $str = sprintf("%.${max_prec}g", $nv); | ||||
4808 | # if (pack("F", $str) ne pack("F", $nv)) { | ||||
4809 | if ($str != $nv) { | ||||
4810 | # not representable in decimal with whatever sprintf() | ||||
4811 | # and atof() Perl is using here. | ||||
4812 | my($mant, $exp) = split_float($nv); | ||||
4813 | return $self->maybe_parens("$mant * 2**$exp", $cx, 19); | ||||
4814 | } | ||||
4815 | } | ||||
4816 | $str = $self->maybe_parens($str, $cx, 21) if $nv < 0; | ||||
4817 | return $str; | ||||
4818 | } elsif ($sv->FLAGS & SVf_ROK && $sv->can("RV")) { | ||||
4819 | my $ref = $sv->RV; | ||||
4820 | my $class = class($ref); | ||||
4821 | if ($class eq "AV") { | ||||
4822 | return "[" . $self->list_const(2, $ref->ARRAY) . "]"; | ||||
4823 | } elsif ($class eq "HV") { | ||||
4824 | my %hash = $ref->ARRAY; | ||||
4825 | my @elts; | ||||
4826 | for my $k (sort keys %hash) { | ||||
4827 | push @elts, "$k => " . $self->const($hash{$k}, 6); | ||||
4828 | } | ||||
4829 | return "{" . join(", ", @elts) . "}"; | ||||
4830 | } elsif ($class eq "CV") { | ||||
4831 | # spent 16µs (9+7) within B::Deparse::BEGIN@4831 which was called:
# once (9µs+7µs) by YAML::XS::BEGIN@57 at line 4836 | ||||
4832 | 1 | 3µs | if ($] > 5.0150051) { | ||
4833 | 1 | 400ns | require overloading; | ||
4834 | 1 | 2µs | 1 | 7µs | unimport overloading; # spent 7µs making 1 call to overloading::unimport |
4835 | } | ||||
4836 | 1 | 3.37ms | 1 | 16µs | } # spent 16µs making 1 call to B::Deparse::BEGIN@4831 |
4837 | if ($] > 5.0150051 && $self->{curcv} && | ||||
4838 | $self->{curcv}->object_2svref == $ref->object_2svref) { | ||||
4839 | return $self->keyword("__SUB__"); | ||||
4840 | } | ||||
4841 | return "sub " . $self->deparse_sub($ref); | ||||
4842 | } | ||||
4843 | if ($class ne 'SPECIAL' and $ref->FLAGS & SVs_SMG) { | ||||
4844 | for (my $mg = $ref->MAGIC; $mg; $mg = $mg->MOREMAGIC) { | ||||
4845 | if ($mg->TYPE eq 'r') { | ||||
4846 | my $re = re_uninterp(escape_re(re_unback($mg->precomp))); | ||||
4847 | return single_delim("qr", "", $re, $self); | ||||
4848 | } | ||||
4849 | } | ||||
4850 | } | ||||
4851 | |||||
4852 | my $const = $self->const($ref, 20); | ||||
4853 | if ($self->{in_subst_repl} && $const =~ /^[0-9]/) { | ||||
4854 | $const = "($const)"; | ||||
4855 | } | ||||
4856 | return $self->maybe_parens("\\$const", $cx, 20); | ||||
4857 | } elsif ($sv->FLAGS & SVf_POK) { | ||||
4858 | my $str = $sv->PV; | ||||
4859 | if ($str =~ /[[:^print:]]/a) { | ||||
4860 | return single_delim("qq", '"', | ||||
4861 | uninterp(escape_str unback $str), $self); | ||||
4862 | } else { | ||||
4863 | return single_delim("q", "'", unback($str), $self); | ||||
4864 | } | ||||
4865 | } else { | ||||
4866 | return "undef"; | ||||
4867 | } | ||||
4868 | } | ||||
4869 | |||||
4870 | sub const_dumper { | ||||
4871 | my $self = shift; | ||||
4872 | my($sv, $cx) = @_; | ||||
4873 | my $ref = $sv->object_2svref(); | ||||
4874 | my $dumper = Data::Dumper->new([$$ref], ['$v']); | ||||
4875 | $dumper->Purity(1)->Terse(1)->Deparse(1)->Indent(0)->Useqq(1)->Sortkeys(1); | ||||
4876 | my $str = $dumper->Dump(); | ||||
4877 | if ($str =~ /^\$v/) { | ||||
4878 | return '${my ' . $str . ' \$v}'; | ||||
4879 | } else { | ||||
4880 | return $str; | ||||
4881 | } | ||||
4882 | } | ||||
4883 | |||||
4884 | sub const_sv { | ||||
4885 | my $self = shift; | ||||
4886 | my $op = shift; | ||||
4887 | my $sv = $op->sv; | ||||
4888 | # the constant could be in the pad (under useithreads) | ||||
4889 | $sv = $self->padval($op->targ) unless $$sv; | ||||
4890 | return $sv; | ||||
4891 | } | ||||
4892 | |||||
4893 | sub meth_sv { | ||||
4894 | my $self = shift; | ||||
4895 | my $op = shift; | ||||
4896 | my $sv = $op->meth_sv; | ||||
4897 | # the constant could be in the pad (under useithreads) | ||||
4898 | $sv = $self->padval($op->targ) unless $$sv; | ||||
4899 | return $sv; | ||||
4900 | } | ||||
4901 | |||||
4902 | sub meth_rclass_sv { | ||||
4903 | my $self = shift; | ||||
4904 | my $op = shift; | ||||
4905 | my $sv = $op->rclass; | ||||
4906 | # the constant could be in the pad (under useithreads) | ||||
4907 | $sv = $self->padval($sv) unless ref $sv; | ||||
4908 | return $sv; | ||||
4909 | } | ||||
4910 | |||||
4911 | sub pp_const { | ||||
4912 | my $self = shift; | ||||
4913 | my($op, $cx) = @_; | ||||
4914 | if ($op->private & OPpCONST_ARYBASE) { | ||||
4915 | return '$['; | ||||
4916 | } | ||||
4917 | # if ($op->private & OPpCONST_BARE) { # trouble with '=>' autoquoting | ||||
4918 | # return $self->const_sv($op)->PV; | ||||
4919 | # } | ||||
4920 | my $sv = $self->const_sv($op); | ||||
4921 | return $self->const($sv, $cx); | ||||
4922 | } | ||||
4923 | |||||
4924 | sub dq { | ||||
4925 | my $self = shift; | ||||
4926 | my $op = shift; | ||||
4927 | my $type = $op->name; | ||||
4928 | if ($type eq "const") { | ||||
4929 | return '$[' if $op->private & OPpCONST_ARYBASE; | ||||
4930 | return uninterp(escape_str(unback($self->const_sv($op)->as_string))); | ||||
4931 | } elsif ($type eq "concat") { | ||||
4932 | my $first = $self->dq($op->first); | ||||
4933 | my $last = $self->dq($op->last); | ||||
4934 | |||||
4935 | # Disambiguate "${foo}bar", "${foo}{bar}", "${foo}[1]", "$foo\::bar" | ||||
4936 | ($last =~ /^[A-Z\\\^\[\]_?]/ && | ||||
4937 | $first =~ s/([\$@])\^$/${1}{^}/) # "${^}W" etc | ||||
4938 | || ($last =~ /^[:'{\[\w_]/ && #' | ||||
4939 | $first =~ s/([\$@])([A-Za-z_]\w*)$/${1}{$2}/); | ||||
4940 | |||||
4941 | return $first . $last; | ||||
4942 | } elsif ($type eq "uc") { | ||||
4943 | return '\U' . $self->dq($op->first->sibling) . '\E'; | ||||
4944 | } elsif ($type eq "lc") { | ||||
4945 | return '\L' . $self->dq($op->first->sibling) . '\E'; | ||||
4946 | } elsif ($type eq "ucfirst") { | ||||
4947 | return '\u' . $self->dq($op->first->sibling); | ||||
4948 | } elsif ($type eq "lcfirst") { | ||||
4949 | return '\l' . $self->dq($op->first->sibling); | ||||
4950 | } elsif ($type eq "quotemeta") { | ||||
4951 | return '\Q' . $self->dq($op->first->sibling) . '\E'; | ||||
4952 | } elsif ($type eq "fc") { | ||||
4953 | return '\F' . $self->dq($op->first->sibling) . '\E'; | ||||
4954 | } elsif ($type eq "join") { | ||||
4955 | return $self->deparse($op->last, 26); # was join($", @ary) | ||||
4956 | } else { | ||||
4957 | return $self->deparse($op, 26); | ||||
4958 | } | ||||
4959 | } | ||||
4960 | |||||
4961 | sub pp_backtick { | ||||
4962 | my $self = shift; | ||||
4963 | my($op, $cx) = @_; | ||||
4964 | # skip pushmark if it exists (readpipe() vs ``) | ||||
4965 | my $child = $op->first->sibling->isa('B::NULL') | ||||
4966 | ? $op->first : $op->first->sibling; | ||||
4967 | if ($self->pure_string($child)) { | ||||
4968 | return single_delim("qx", '`', $self->dq($child, 1), $self); | ||||
4969 | } | ||||
4970 | unop($self, @_, "readpipe"); | ||||
4971 | } | ||||
4972 | |||||
4973 | sub dquote { | ||||
4974 | my $self = shift; | ||||
4975 | my($op, $cx) = @_; | ||||
4976 | my $kid = $op->first->sibling; # skip ex-stringify, pushmark | ||||
4977 | return $self->deparse($kid, $cx) if $self->{'unquote'}; | ||||
4978 | $self->maybe_targmy($kid, $cx, | ||||
4979 | sub {single_delim("qq", '"', $self->dq($_[1]), | ||||
4980 | $self)}); | ||||
4981 | } | ||||
4982 | |||||
4983 | # OP_STRINGIFY is a listop, but it only ever has one arg | ||||
4984 | sub pp_stringify { | ||||
4985 | my ($self, $op, $cx) = @_; | ||||
4986 | my $kid = $op->first->sibling; | ||||
4987 | while ($kid->name eq 'null' && !null($kid->first)) { | ||||
4988 | $kid = $kid->first; | ||||
4989 | } | ||||
4990 | if ($kid->name =~ /^(?:const|padsv|rv2sv|av2arylen|gvsv|multideref | ||||
4991 | |aelemfast(?:_lex)?|[ah]elem|join|concat)\z/x) { | ||||
4992 | maybe_targmy(@_, \&dquote); | ||||
4993 | } | ||||
4994 | else { | ||||
4995 | # Actually an optimised join. | ||||
4996 | my $result = listop(@_,"join"); | ||||
4997 | $result =~ s/join([( ])/join$1$self->{'ex_const'}, /; | ||||
4998 | $result; | ||||
4999 | } | ||||
5000 | } | ||||
5001 | |||||
5002 | # tr/// and s/// (and tr[][], tr[]//, tr###, etc) | ||||
5003 | # note that tr(from)/to/ is OK, but not tr/from/(to) | ||||
5004 | sub double_delim { | ||||
5005 | my($from, $to) = @_; | ||||
5006 | my($succeed, $delim); | ||||
5007 | if ($from !~ m[/] and $to !~ m[/]) { | ||||
5008 | return "/$from/$to/"; | ||||
5009 | } elsif (($succeed, $from) = balanced_delim($from) and $succeed) { | ||||
5010 | if (($succeed, $to) = balanced_delim($to) and $succeed) { | ||||
5011 | return "$from$to"; | ||||
5012 | } else { | ||||
5013 | for $delim ('/', '"', '#') { # note no "'" -- s''' is special | ||||
5014 | return "$from$delim$to$delim" if index($to, $delim) == -1; | ||||
5015 | } | ||||
5016 | $to =~ s[/][\\/]g; | ||||
5017 | return "$from/$to/"; | ||||
5018 | } | ||||
5019 | } else { | ||||
5020 | for $delim ('/', '"', '#') { # note no ' | ||||
5021 | return "$delim$from$delim$to$delim" | ||||
5022 | if index($to . $from, $delim) == -1; | ||||
5023 | } | ||||
5024 | $from =~ s[/][\\/]g; | ||||
5025 | $to =~ s[/][\\/]g; | ||||
5026 | return "/$from/$to/"; | ||||
5027 | } | ||||
5028 | } | ||||
5029 | |||||
5030 | # Only used by tr///, so backslashes hyphens | ||||
5031 | sub pchr { # ASCII | ||||
5032 | my($n) = @_; | ||||
5033 | if ($n == ord '\\') { | ||||
5034 | return '\\\\'; | ||||
5035 | } elsif ($n == ord "-") { | ||||
5036 | return "\\-"; | ||||
5037 | } elsif (utf8::native_to_unicode($n) >= utf8::native_to_unicode(ord(' ')) | ||||
5038 | and utf8::native_to_unicode($n) <= utf8::native_to_unicode(ord('~'))) | ||||
5039 | { | ||||
5040 | # I'm presuming a regex is not ok here, otherwise we could have used | ||||
5041 | # /[[:print:]]/a to get here | ||||
5042 | return chr($n); | ||||
5043 | } elsif ($n == ord "\a") { | ||||
5044 | return '\\a'; | ||||
5045 | } elsif ($n == ord "\b") { | ||||
5046 | return '\\b'; | ||||
5047 | } elsif ($n == ord "\t") { | ||||
5048 | return '\\t'; | ||||
5049 | } elsif ($n == ord "\n") { | ||||
5050 | return '\\n'; | ||||
5051 | } elsif ($n == ord "\e") { | ||||
5052 | return '\\e'; | ||||
5053 | } elsif ($n == ord "\f") { | ||||
5054 | return '\\f'; | ||||
5055 | } elsif ($n == ord "\r") { | ||||
5056 | return '\\r'; | ||||
5057 | } elsif ($n >= ord("\cA") and $n <= ord("\cZ")) { | ||||
5058 | return '\\c' . unctrl{chr $n}; | ||||
5059 | } else { | ||||
5060 | # return '\x' . sprintf("%02x", $n); | ||||
5061 | return '\\' . sprintf("%03o", $n); | ||||
5062 | } | ||||
5063 | } | ||||
5064 | |||||
5065 | sub collapse { | ||||
5066 | my(@chars) = @_; | ||||
5067 | my($str, $c, $tr) = (""); | ||||
5068 | for ($c = 0; $c < @chars; $c++) { | ||||
5069 | $tr = $chars[$c]; | ||||
5070 | $str .= pchr($tr); | ||||
5071 | if ($c <= $#chars - 2 and $chars[$c + 1] == $tr + 1 and | ||||
5072 | $chars[$c + 2] == $tr + 2) | ||||
5073 | { | ||||
5074 | for (; $c <= $#chars-1 and $chars[$c + 1] == $chars[$c] + 1; $c++) | ||||
5075 | {} | ||||
5076 | $str .= "-"; | ||||
5077 | $str .= pchr($chars[$c]); | ||||
5078 | } | ||||
5079 | } | ||||
5080 | return $str; | ||||
5081 | } | ||||
5082 | |||||
5083 | sub tr_decode_byte { | ||||
5084 | my($table, $flags) = @_; | ||||
5085 | my(@table) = unpack("s*", $table); | ||||
5086 | splice @table, 0x100, 1; # Number of subsequent elements | ||||
5087 | my($c, $tr, @from, @to, @delfrom, $delhyphen); | ||||
5088 | if ($table[ord "-"] != -1 and | ||||
5089 | $table[ord("-") - 1] == -1 || $table[ord("-") + 1] == -1) | ||||
5090 | { | ||||
5091 | $tr = $table[ord "-"]; | ||||
5092 | $table[ord "-"] = -1; | ||||
5093 | if ($tr >= 0) { | ||||
5094 | @from = ord("-"); | ||||
5095 | @to = $tr; | ||||
5096 | } else { # -2 ==> delete | ||||
5097 | $delhyphen = 1; | ||||
5098 | } | ||||
5099 | } | ||||
5100 | for ($c = 0; $c < @table; $c++) { | ||||
5101 | $tr = $table[$c]; | ||||
5102 | if ($tr >= 0) { | ||||
5103 | push @from, $c; push @to, $tr; | ||||
5104 | } elsif ($tr == -2) { | ||||
5105 | push @delfrom, $c; | ||||
5106 | } | ||||
5107 | } | ||||
5108 | @from = (@from, @delfrom); | ||||
5109 | if ($flags & OPpTRANS_COMPLEMENT) { | ||||
5110 | my @newfrom = (); | ||||
5111 | my %from; | ||||
5112 | @from{@from} = (1) x @from; | ||||
5113 | for ($c = 0; $c < 256; $c++) { | ||||
5114 | push @newfrom, $c unless $from{$c}; | ||||
5115 | } | ||||
5116 | @from = @newfrom; | ||||
5117 | } | ||||
5118 | unless ($flags & OPpTRANS_DELETE || !@to) { | ||||
5119 | pop @to while $#to and $to[$#to] == $to[$#to -1]; | ||||
5120 | } | ||||
5121 | my($from, $to); | ||||
5122 | $from = collapse(@from); | ||||
5123 | $to = collapse(@to); | ||||
5124 | $from .= "-" if $delhyphen; | ||||
5125 | return ($from, $to); | ||||
5126 | } | ||||
5127 | |||||
5128 | sub tr_chr { | ||||
5129 | my $x = shift; | ||||
5130 | if ($x == ord "-") { | ||||
5131 | return "\\-"; | ||||
5132 | } elsif ($x == ord "\\") { | ||||
5133 | return "\\\\"; | ||||
5134 | } else { | ||||
5135 | return chr $x; | ||||
5136 | } | ||||
5137 | } | ||||
5138 | |||||
5139 | # XXX This doesn't yet handle all cases correctly either | ||||
5140 | |||||
5141 | sub tr_decode_utf8 { | ||||
5142 | my($swash_hv, $flags) = @_; | ||||
5143 | my %swash = $swash_hv->ARRAY; | ||||
5144 | my $final = undef; | ||||
5145 | $final = $swash{'FINAL'}->IV if exists $swash{'FINAL'}; | ||||
5146 | my $none = $swash{"NONE"}->IV; | ||||
5147 | my $extra = $none + 1; | ||||
5148 | my(@from, @delfrom, @to); | ||||
5149 | my $line; | ||||
5150 | foreach $line (split /\n/, $swash{'LIST'}->PV) { | ||||
5151 | my($min, $max, $result) = split(/\t/, $line); | ||||
5152 | $min = hex $min; | ||||
5153 | if (length $max) { | ||||
5154 | $max = hex $max; | ||||
5155 | } else { | ||||
5156 | $max = $min; | ||||
5157 | } | ||||
5158 | $result = hex $result; | ||||
5159 | if ($result == $extra) { | ||||
5160 | push @delfrom, [$min, $max]; | ||||
5161 | } else { | ||||
5162 | push @from, [$min, $max]; | ||||
5163 | push @to, [$result, $result + $max - $min]; | ||||
5164 | } | ||||
5165 | } | ||||
5166 | for my $i (0 .. $#from) { | ||||
5167 | if ($from[$i][0] == ord '-') { | ||||
5168 | unshift @from, splice(@from, $i, 1); | ||||
5169 | unshift @to, splice(@to, $i, 1); | ||||
5170 | last; | ||||
5171 | } elsif ($from[$i][1] == ord '-') { | ||||
5172 | $from[$i][1]--; | ||||
5173 | $to[$i][1]--; | ||||
5174 | unshift @from, ord '-'; | ||||
5175 | unshift @to, ord '-'; | ||||
5176 | last; | ||||
5177 | } | ||||
5178 | } | ||||
5179 | for my $i (0 .. $#delfrom) { | ||||
5180 | if ($delfrom[$i][0] == ord '-') { | ||||
5181 | push @delfrom, splice(@delfrom, $i, 1); | ||||
5182 | last; | ||||
5183 | } elsif ($delfrom[$i][1] == ord '-') { | ||||
5184 | $delfrom[$i][1]--; | ||||
5185 | push @delfrom, ord '-'; | ||||
5186 | last; | ||||
5187 | } | ||||
5188 | } | ||||
5189 | if (defined $final and $to[$#to][1] != $final) { | ||||
5190 | push @to, [$final, $final]; | ||||
5191 | } | ||||
5192 | push @from, @delfrom; | ||||
5193 | if ($flags & OPpTRANS_COMPLEMENT) { | ||||
5194 | my @newfrom; | ||||
5195 | my $next = 0; | ||||
5196 | for my $i (0 .. $#from) { | ||||
5197 | push @newfrom, [$next, $from[$i][0] - 1]; | ||||
5198 | $next = $from[$i][1] + 1; | ||||
5199 | } | ||||
5200 | @from = (); | ||||
5201 | for my $range (@newfrom) { | ||||
5202 | if ($range->[0] <= $range->[1]) { | ||||
5203 | push @from, $range; | ||||
5204 | } | ||||
5205 | } | ||||
5206 | } | ||||
5207 | my($from, $to, $diff); | ||||
5208 | for my $chunk (@from) { | ||||
5209 | $diff = $chunk->[1] - $chunk->[0]; | ||||
5210 | if ($diff > 1) { | ||||
5211 | $from .= tr_chr($chunk->[0]) . "-" . tr_chr($chunk->[1]); | ||||
5212 | } elsif ($diff == 1) { | ||||
5213 | $from .= tr_chr($chunk->[0]) . tr_chr($chunk->[1]); | ||||
5214 | } else { | ||||
5215 | $from .= tr_chr($chunk->[0]); | ||||
5216 | } | ||||
5217 | } | ||||
5218 | for my $chunk (@to) { | ||||
5219 | $diff = $chunk->[1] - $chunk->[0]; | ||||
5220 | if ($diff > 1) { | ||||
5221 | $to .= tr_chr($chunk->[0]) . "-" . tr_chr($chunk->[1]); | ||||
5222 | } elsif ($diff == 1) { | ||||
5223 | $to .= tr_chr($chunk->[0]) . tr_chr($chunk->[1]); | ||||
5224 | } else { | ||||
5225 | $to .= tr_chr($chunk->[0]); | ||||
5226 | } | ||||
5227 | } | ||||
5228 | #$final = sprintf("%04x", $final) if defined $final; | ||||
5229 | #$none = sprintf("%04x", $none) if defined $none; | ||||
5230 | #$extra = sprintf("%04x", $extra) if defined $extra; | ||||
5231 | #print STDERR "final: $final\n none: $none\nextra: $extra\n"; | ||||
5232 | #print STDERR $swash{'LIST'}->PV; | ||||
5233 | return (escape_str($from), escape_str($to)); | ||||
5234 | } | ||||
5235 | |||||
5236 | sub pp_trans { | ||||
5237 | my $self = shift; | ||||
5238 | my($op, $cx, $morflags) = @_; | ||||
5239 | my($from, $to); | ||||
5240 | my $class = class($op); | ||||
5241 | my $priv_flags = $op->private; | ||||
5242 | if ($class eq "PVOP") { | ||||
5243 | ($from, $to) = tr_decode_byte($op->pv, $priv_flags); | ||||
5244 | } elsif ($class eq "PADOP") { | ||||
5245 | ($from, $to) | ||||
5246 | = tr_decode_utf8($self->padval($op->padix)->RV, $priv_flags); | ||||
5247 | } else { # class($op) eq "SVOP" | ||||
5248 | ($from, $to) = tr_decode_utf8($op->sv->RV, $priv_flags); | ||||
5249 | } | ||||
5250 | my $flags = ""; | ||||
5251 | $flags .= "c" if $priv_flags & OPpTRANS_COMPLEMENT; | ||||
5252 | $flags .= "d" if $priv_flags & OPpTRANS_DELETE; | ||||
5253 | $to = "" if $from eq $to and $flags eq ""; | ||||
5254 | $flags .= "s" if $priv_flags & OPpTRANS_SQUASH; | ||||
5255 | $flags .= $morflags if defined $morflags; | ||||
5256 | my $ret = $self->keyword("tr") . double_delim($from, $to) . $flags; | ||||
5257 | if (my $targ = $op->targ) { | ||||
5258 | return $self->maybe_parens($self->padname($targ) . " =~ $ret", | ||||
5259 | $cx, 20); | ||||
5260 | } | ||||
5261 | return $ret; | ||||
5262 | } | ||||
5263 | |||||
5264 | sub pp_transr { push @_, 'r'; goto &pp_trans } | ||||
5265 | |||||
5266 | sub re_dq_disambiguate { | ||||
5267 | my ($first, $last) = @_; | ||||
5268 | # Disambiguate "${foo}bar", "${foo}{bar}", "${foo}[1]" | ||||
5269 | ($last =~ /^[A-Z\\\^\[\]_?]/ && | ||||
5270 | $first =~ s/([\$@])\^$/${1}{^}/) # "${^}W" etc | ||||
5271 | || ($last =~ /^[{\[\w_]/ && | ||||
5272 | $first =~ s/([\$@])([A-Za-z_]\w*)$/${1}{$2}/); | ||||
5273 | return $first . $last; | ||||
5274 | } | ||||
5275 | |||||
5276 | # Like dq(), but different | ||||
5277 | sub re_dq { | ||||
5278 | my $self = shift; | ||||
5279 | my ($op) = @_; | ||||
5280 | |||||
5281 | my $type = $op->name; | ||||
5282 | if ($type eq "const") { | ||||
5283 | return '$[' if $op->private & OPpCONST_ARYBASE; | ||||
5284 | my $unbacked = re_unback($self->const_sv($op)->as_string); | ||||
5285 | return re_uninterp(escape_re($unbacked)); | ||||
5286 | } elsif ($type eq "concat") { | ||||
5287 | my $first = $self->re_dq($op->first); | ||||
5288 | my $last = $self->re_dq($op->last); | ||||
5289 | return re_dq_disambiguate($first, $last); | ||||
5290 | } elsif ($type eq "uc") { | ||||
5291 | return '\U' . $self->re_dq($op->first->sibling) . '\E'; | ||||
5292 | } elsif ($type eq "lc") { | ||||
5293 | return '\L' . $self->re_dq($op->first->sibling) . '\E'; | ||||
5294 | } elsif ($type eq "ucfirst") { | ||||
5295 | return '\u' . $self->re_dq($op->first->sibling); | ||||
5296 | } elsif ($type eq "lcfirst") { | ||||
5297 | return '\l' . $self->re_dq($op->first->sibling); | ||||
5298 | } elsif ($type eq "quotemeta") { | ||||
5299 | return '\Q' . $self->re_dq($op->first->sibling) . '\E'; | ||||
5300 | } elsif ($type eq "fc") { | ||||
5301 | return '\F' . $self->re_dq($op->first->sibling) . '\E'; | ||||
5302 | } elsif ($type eq "join") { | ||||
5303 | return $self->deparse($op->last, 26); # was join($", @ary) | ||||
5304 | } else { | ||||
5305 | my $ret = $self->deparse($op, 26); | ||||
5306 | $ret =~ s/^\$([(|)])\z/\${$1}/ # $( $| $) need braces | ||||
5307 | or $ret =~ s/^\@([-+])\z/\@{$1}/; # @- @+ need braces | ||||
5308 | return $ret; | ||||
5309 | } | ||||
5310 | } | ||||
5311 | |||||
5312 | sub pure_string { | ||||
5313 | my ($self, $op) = @_; | ||||
5314 | return 0 if null $op; | ||||
5315 | my $type = $op->name; | ||||
5316 | |||||
5317 | if ($type eq 'const' || $type eq 'av2arylen') { | ||||
5318 | return 1; | ||||
5319 | } | ||||
5320 | elsif ($type =~ /^(?:[ul]c(first)?|fc)$/ || $type eq 'quotemeta') { | ||||
5321 | return $self->pure_string($op->first->sibling); | ||||
5322 | } | ||||
5323 | elsif ($type eq 'join') { | ||||
5324 | my $join_op = $op->first->sibling; # Skip pushmark | ||||
5325 | return 0 unless $join_op->name eq 'null' && $join_op->targ == OP_RV2SV; | ||||
5326 | |||||
5327 | my $gvop = $join_op->first; | ||||
5328 | return 0 unless $gvop->name eq 'gvsv'; | ||||
5329 | return 0 unless '"' eq $self->gv_name($self->gv_or_padgv($gvop)); | ||||
5330 | |||||
5331 | return 0 unless ${$join_op->sibling} eq ${$op->last}; | ||||
5332 | return 0 unless $op->last->name =~ /^(?:[ah]slice|(?:rv2|pad)av)$/; | ||||
5333 | } | ||||
5334 | elsif ($type eq 'concat') { | ||||
5335 | return $self->pure_string($op->first) | ||||
5336 | && $self->pure_string($op->last); | ||||
5337 | } | ||||
5338 | elsif (is_scalar($op) || $type =~ /^[ah]elem$/) { | ||||
5339 | return 1; | ||||
5340 | } | ||||
5341 | elsif ($type eq "null" and $op->can('first') and not null $op->first) { | ||||
5342 | my $first = $op->first; | ||||
5343 | |||||
5344 | return 1 if $first->name eq "multideref"; | ||||
5345 | return 1 if $first->name eq "aelemfast_lex"; | ||||
5346 | |||||
5347 | if ( $first->name eq "null" | ||||
5348 | and $first->can('first') | ||||
5349 | and not null $first->first | ||||
5350 | and $first->first->name eq "aelemfast" | ||||
5351 | ) | ||||
5352 | { | ||||
5353 | return 1; | ||||
5354 | } | ||||
5355 | } | ||||
5356 | |||||
5357 | return 0; | ||||
5358 | } | ||||
5359 | |||||
5360 | sub code_list { | ||||
5361 | my ($self,$op,$cv) = @_; | ||||
5362 | |||||
5363 | # localise stuff relating to the current sub | ||||
5364 | $cv and | ||||
5365 | local($self->{'curcv'}) = $cv, | ||||
5366 | local($self->{'curcvlex'}), | ||||
5367 | local(@$self{qw'curstash warnings hints hinthash curcop'}) | ||||
5368 | = @$self{qw'curstash warnings hints hinthash curcop'}; | ||||
5369 | |||||
5370 | my $re; | ||||
5371 | for ($op = $op->first->sibling; !null($op); $op = $op->sibling) { | ||||
5372 | if ($op->name eq 'null' and $op->flags & OPf_SPECIAL) { | ||||
5373 | my $scope = $op->first; | ||||
5374 | # 0 context (last arg to scopeop) means statement context, so | ||||
5375 | # the contents of the block will not be wrapped in do{...}. | ||||
5376 | my $block = scopeop($scope->first->name eq "enter", $self, | ||||
5377 | $scope, 0); | ||||
5378 | # next op is the source code of the block | ||||
5379 | $op = $op->sibling; | ||||
5380 | $re .= ($self->const_sv($op)->PV =~ m|^(\(\?\??\{)|)[0]; | ||||
5381 | my $multiline = $block =~ /\n/; | ||||
5382 | $re .= $multiline ? "\n\t" : ' '; | ||||
5383 | $re .= $block; | ||||
5384 | $re .= $multiline ? "\n\b})" : " })"; | ||||
5385 | } else { | ||||
5386 | $re = re_dq_disambiguate($re, $self->re_dq($op)); | ||||
5387 | } | ||||
5388 | } | ||||
5389 | $re; | ||||
5390 | } | ||||
5391 | |||||
5392 | sub regcomp { | ||||
5393 | my $self = shift; | ||||
5394 | my($op, $cx) = @_; | ||||
5395 | my $kid = $op->first; | ||||
5396 | $kid = $kid->first if $kid->name eq "regcmaybe"; | ||||
5397 | $kid = $kid->first if $kid->name eq "regcreset"; | ||||
5398 | my $kname = $kid->name; | ||||
5399 | if ($kname eq "null" and !null($kid->first) | ||||
5400 | and $kid->first->name eq 'pushmark') | ||||
5401 | { | ||||
5402 | my $str = ''; | ||||
5403 | $kid = $kid->first->sibling; | ||||
5404 | while (!null($kid)) { | ||||
5405 | my $first = $str; | ||||
5406 | my $last = $self->re_dq($kid); | ||||
5407 | $str = re_dq_disambiguate($first, $last); | ||||
5408 | $kid = $kid->sibling; | ||||
5409 | } | ||||
5410 | return $str, 1; | ||||
5411 | } | ||||
5412 | |||||
5413 | return ($self->re_dq($kid), 1) | ||||
5414 | if $kname =~ /^(?:rv2|pad)av/ or $self->pure_string($kid); | ||||
5415 | return ($self->deparse($kid, $cx), 0); | ||||
5416 | } | ||||
5417 | |||||
5418 | sub pp_regcomp { | ||||
5419 | my ($self, $op, $cx) = @_; | ||||
5420 | return (($self->regcomp($op, $cx, 0))[0]); | ||||
5421 | } | ||||
5422 | |||||
5423 | sub re_flags { | ||||
5424 | my ($self, $op) = @_; | ||||
5425 | my $flags = ''; | ||||
5426 | my $pmflags = $op->pmflags; | ||||
5427 | if (!$pmflags) { | ||||
5428 | my $re = $op->pmregexp; | ||||
5429 | if ($$re) { | ||||
5430 | $pmflags = $re->compflags; | ||||
5431 | } | ||||
5432 | } | ||||
5433 | $flags .= "g" if $pmflags & PMf_GLOBAL; | ||||
5434 | $flags .= "i" if $pmflags & PMf_FOLD; | ||||
5435 | $flags .= "m" if $pmflags & PMf_MULTILINE; | ||||
5436 | $flags .= "o" if $pmflags & PMf_KEEP; | ||||
5437 | $flags .= "s" if $pmflags & PMf_SINGLELINE; | ||||
5438 | $flags .= "x" if $pmflags & PMf_EXTENDED; | ||||
5439 | $flags .= "x" if $pmflags & PMf_EXTENDED_MORE; | ||||
5440 | $flags .= "p" if $pmflags & RXf_PMf_KEEPCOPY; | ||||
5441 | if (my $charset = $pmflags & RXf_PMf_CHARSET) { | ||||
5442 | # Hardcoding this is fragile, but B does not yet export the | ||||
5443 | # constants we need. | ||||
5444 | $flags .= qw(d l u a aa)[$charset >> 7] | ||||
5445 | } | ||||
5446 | # The /d flag is indicated by 0; only show it if necessary. | ||||
5447 | elsif ($self->{hinthash} and | ||||
5448 | $self->{hinthash}{reflags_charset} | ||||
5449 | || $self->{hinthash}{feature_unicode} | ||||
5450 | or $self->{hints} & $feature::hint_mask | ||||
5451 | && ($self->{hints} & $feature::hint_mask) | ||||
5452 | != $feature::hint_mask | ||||
5453 | && do { | ||||
5454 | $self->{hints} & $feature::hint_uni8bit; | ||||
5455 | } | ||||
5456 | ) { | ||||
5457 | $flags .= 'd'; | ||||
5458 | } | ||||
5459 | $flags; | ||||
5460 | } | ||||
5461 | |||||
5462 | # osmic acid -- see osmium tetroxide | ||||
5463 | |||||
5464 | my %matchwords; | ||||
5465 | 1 | 40µs | 23 | 6µs | map($matchwords{join "", sort split //, $_} = $_, 'cig', 'cog', 'cos', 'cogs', # spent 6µs making 23 calls to B::Deparse::CORE:sort, avg 248ns/call |
5466 | 'cox', 'go', 'is', 'ism', 'iso', 'mig', 'mix', 'osmic', 'ox', 'sic', | ||||
5467 | 'sig', 'six', 'smog', 'so', 'soc', 'sog', 'xi', 'soup', 'soupmix'); | ||||
5468 | |||||
5469 | # When deparsing a regular expression with code blocks, we have to look in | ||||
5470 | # various places to find the blocks. | ||||
5471 | # | ||||
5472 | # For qr/(?{...})/ without interpolation, the CV is under $qr->qr_anoncv | ||||
5473 | # and the code list (list of blocks and constants, maybe vars) is under | ||||
5474 | # $cv->ROOT->first->code_list: | ||||
5475 | # ./perl -Ilib -MB -e 'use O "Concise", B::svref_2object(sub {qr/(?{die})/})->ROOT->first->first->sibling->pmregexp->qr_anoncv->object_2svref' | ||||
5476 | # | ||||
5477 | # For qr/$a(?{...})/ with interpolation, the code list is more accessible, | ||||
5478 | # under $pmop->code_list, but the $cv is something you have to dig for in | ||||
5479 | # the regcomp op’s kids: | ||||
5480 | # ./perl -Ilib -mO=Concise -e 'qr/$a(?{die})/' | ||||
5481 | # | ||||
5482 | # For m// and split //, things are much simpler. There is no CV. The code | ||||
5483 | # list is under $pmop->code_list. | ||||
5484 | |||||
5485 | sub matchop { | ||||
5486 | my $self = shift; | ||||
5487 | my($op, $cx, $name, $delim) = @_; | ||||
5488 | my $kid = $op->first; | ||||
5489 | my ($binop, $var, $re) = ("", "", ""); | ||||
5490 | if ($op->flags & OPf_STACKED) { | ||||
5491 | $binop = 1; | ||||
5492 | $var = $self->deparse($kid, 20); | ||||
5493 | $kid = $kid->sibling; | ||||
5494 | } | ||||
5495 | # not $name; $name will be 'm' for both match and split | ||||
5496 | elsif ($op->name eq 'match' and my $targ = $op->targ) { | ||||
5497 | $binop = 1; | ||||
5498 | $var = $self->padname($targ); | ||||
5499 | } | ||||
5500 | my $quote = 1; | ||||
5501 | my $pmflags = $op->pmflags; | ||||
5502 | my $rhs_bound_to_defsv; | ||||
5503 | my ($cv, $bregexp); | ||||
5504 | my $have_kid = !null $kid; | ||||
5505 | # Check for code blocks first | ||||
5506 | if (not null my $code_list = $op->code_list) { | ||||
5507 | $re = $self->code_list($code_list, | ||||
5508 | $op->name eq 'qr' | ||||
5509 | ? $self->padval( | ||||
5510 | $kid->first # ex-list | ||||
5511 | ->first # pushmark | ||||
5512 | ->sibling # entersub | ||||
5513 | ->first # ex-list | ||||
5514 | ->first # pushmark | ||||
5515 | ->sibling # srefgen | ||||
5516 | ->first # ex-list | ||||
5517 | ->first # anoncode | ||||
5518 | ->targ | ||||
5519 | ) | ||||
5520 | : undef); | ||||
5521 | } elsif (${$bregexp = $op->pmregexp} && ${$cv = $bregexp->qr_anoncv}) { | ||||
5522 | my $patop = $cv->ROOT # leavesub | ||||
5523 | ->first # qr | ||||
5524 | ->code_list;# list | ||||
5525 | $re = $self->code_list($patop, $cv); | ||||
5526 | } elsif (!$have_kid) { | ||||
5527 | $re = re_uninterp(escape_re(re_unback($op->precomp))); | ||||
5528 | } elsif ($kid->name ne 'regcomp') { | ||||
5529 | carp("found ".$kid->name." where regcomp expected"); | ||||
5530 | } else { | ||||
5531 | ($re, $quote) = $self->regcomp($kid, 21); | ||||
5532 | } | ||||
5533 | if ($have_kid and $kid->name eq 'regcomp') { | ||||
5534 | my $matchop = $kid->first; | ||||
5535 | if ($matchop->name eq 'regcreset') { | ||||
5536 | $matchop = $matchop->first; | ||||
5537 | } | ||||
5538 | if ($matchop->name =~ /^(?:match|transr?|subst)\z/ | ||||
5539 | && $matchop->flags & OPf_SPECIAL) { | ||||
5540 | $rhs_bound_to_defsv = 1; | ||||
5541 | } | ||||
5542 | } | ||||
5543 | my $flags = ""; | ||||
5544 | $flags .= "c" if $pmflags & PMf_CONTINUE; | ||||
5545 | $flags .= $self->re_flags($op); | ||||
5546 | $flags = join '', sort split //, $flags; | ||||
5547 | $flags = $matchwords{$flags} if $matchwords{$flags}; | ||||
5548 | if ($pmflags & PMf_ONCE) { # only one kind of delimiter works here | ||||
5549 | $re =~ s/\?/\\?/g; | ||||
5550 | $re = $self->keyword("m") . "?$re?"; # explicit 'm' is required | ||||
5551 | } elsif ($quote) { | ||||
5552 | $re = single_delim($name, $delim, $re, $self); | ||||
5553 | } | ||||
5554 | $re = $re . $flags if $quote; | ||||
5555 | if ($binop) { | ||||
5556 | return | ||||
5557 | $self->maybe_parens( | ||||
5558 | $rhs_bound_to_defsv | ||||
5559 | ? "$var =~ (\$_ =~ $re)" | ||||
5560 | : "$var =~ $re", | ||||
5561 | $cx, 20 | ||||
5562 | ); | ||||
5563 | } else { | ||||
5564 | return $re; | ||||
5565 | } | ||||
5566 | } | ||||
5567 | |||||
5568 | sub pp_match { matchop(@_, "m", "/") } | ||||
5569 | sub pp_pushre { matchop(@_, "m", "/") } | ||||
5570 | sub pp_qr { matchop(@_, "qr", "") } | ||||
5571 | |||||
5572 | sub pp_runcv { unop(@_, "__SUB__"); } | ||||
5573 | |||||
5574 | sub pp_split { | ||||
5575 | maybe_targmy(@_, \&split); | ||||
5576 | } | ||||
5577 | sub split { | ||||
5578 | my $self = shift; | ||||
5579 | my($op, $cx) = @_; | ||||
5580 | my($kid, @exprs, $ary, $expr); | ||||
5581 | $kid = $op->first; | ||||
5582 | |||||
5583 | # For our kid (an OP_PUSHRE), pmreplroot is never actually the | ||||
5584 | # root of a replacement; it's either empty, or abused to point to | ||||
5585 | # the GV for an array we split into (an optimization to save | ||||
5586 | # assignment overhead). Depending on whether we're using ithreads, | ||||
5587 | # this OP* holds either a GV* or a PADOFFSET. Luckily, B.xs | ||||
5588 | # figures out for us which it is. | ||||
5589 | my $replroot = $kid->pmreplroot; | ||||
5590 | my $gv = 0; | ||||
5591 | my $stacked = $op->flags & OPf_STACKED; | ||||
5592 | if (ref($replroot) eq "B::GV") { | ||||
5593 | $gv = $replroot; | ||||
5594 | } elsif (!ref($replroot) and $replroot > 0) { | ||||
5595 | $gv = $self->padval($replroot); | ||||
5596 | } elsif ($kid->targ) { | ||||
5597 | $ary = $self->padname($kid->targ) | ||||
5598 | } elsif ($stacked) { | ||||
5599 | $ary = $self->deparse($op->last, 7); | ||||
5600 | } | ||||
5601 | $ary = $self->maybe_local(@_, | ||||
5602 | $self->stash_variable('@', | ||||
5603 | $self->gv_name($gv), | ||||
5604 | $cx)) | ||||
5605 | if $gv; | ||||
5606 | |||||
5607 | # Skip the last kid when OPf_STACKED is set, since it is the array | ||||
5608 | # on the left. | ||||
5609 | for (; !null($stacked ? $kid->sibling : $kid); $kid = $kid->sibling) { | ||||
5610 | push @exprs, $self->deparse($kid, 6); | ||||
5611 | } | ||||
5612 | |||||
5613 | # handle special case of split(), and split(' ') that compiles to /\s+/ | ||||
5614 | # Under 5.10, the reflags may be undef if the split regexp isn't a constant | ||||
5615 | # Under 5.17.5-5.17.9, the special flag is on split itself. | ||||
5616 | $kid = $op->first; | ||||
5617 | if ( $op->flags & OPf_SPECIAL | ||||
5618 | or ( | ||||
5619 | $kid->flags & OPf_SPECIAL | ||||
5620 | and ( $] < 5.009 ? $kid->pmflags & PMf_SKIPWHITE() | ||||
5621 | : ($kid->reflags || 0) & RXf_SKIPWHITE() | ||||
5622 | ) | ||||
5623 | ) | ||||
5624 | ) { | ||||
5625 | $exprs[0] = "' '"; | ||||
5626 | } | ||||
5627 | |||||
5628 | $expr = "split(" . join(", ", @exprs) . ")"; | ||||
5629 | if ($ary) { | ||||
5630 | return $self->maybe_parens("$ary = $expr", $cx, 7); | ||||
5631 | } else { | ||||
5632 | return $expr; | ||||
5633 | } | ||||
5634 | } | ||||
5635 | |||||
5636 | # oxime -- any of various compounds obtained chiefly by the action of | ||||
5637 | # hydroxylamine on aldehydes and ketones and characterized by the | ||||
5638 | # bivalent grouping C=NOH [Webster's Tenth] | ||||
5639 | |||||
5640 | 1 | 0s | my %substwords; | ||
5641 | 1 | 61µs | 43 | 6µs | map($substwords{join "", sort split //, $_} = $_, 'ego', 'egoism', 'em', # spent 6µs making 43 calls to B::Deparse::CORE:sort, avg 147ns/call |
5642 | 'es', 'ex', 'exes', 'gee', 'go', 'goes', 'ie', 'ism', 'iso', 'me', | ||||
5643 | 'meese', 'meso', 'mig', 'mix', 'os', 'ox', 'oxime', 'see', 'seem', | ||||
5644 | 'seg', 'sex', 'sig', 'six', 'smog', 'sog', 'some', 'xi', 'rogue', | ||||
5645 | 'sir', 'rise', 'smore', 'more', 'seer', 'rome', 'gore', 'grim', 'grime', | ||||
5646 | 'or', 'rose', 'rosie'); | ||||
5647 | |||||
5648 | sub pp_subst { | ||||
5649 | my $self = shift; | ||||
5650 | my($op, $cx) = @_; | ||||
5651 | my $kid = $op->first; | ||||
5652 | my($binop, $var, $re, $repl) = ("", "", "", ""); | ||||
5653 | if ($op->flags & OPf_STACKED) { | ||||
5654 | $binop = 1; | ||||
5655 | $var = $self->deparse($kid, 20); | ||||
5656 | $kid = $kid->sibling; | ||||
5657 | } | ||||
5658 | elsif (my $targ = $op->targ) { | ||||
5659 | $binop = 1; | ||||
5660 | $var = $self->padname($targ); | ||||
5661 | } | ||||
5662 | my $flags = ""; | ||||
5663 | my $pmflags = $op->pmflags; | ||||
5664 | if (null($op->pmreplroot)) { | ||||
5665 | $repl = $kid; | ||||
5666 | $kid = $kid->sibling; | ||||
5667 | } else { | ||||
5668 | $repl = $op->pmreplroot->first; # skip substcont | ||||
5669 | } | ||||
5670 | while ($repl->name eq "entereval") { | ||||
5671 | $repl = $repl->first; | ||||
5672 | $flags .= "e"; | ||||
5673 | } | ||||
5674 | { | ||||
5675 | local $self->{in_subst_repl} = 1; | ||||
5676 | if ($pmflags & PMf_EVAL) { | ||||
5677 | $repl = $self->deparse($repl->first, 0); | ||||
5678 | } else { | ||||
5679 | $repl = $self->dq($repl); | ||||
5680 | } | ||||
5681 | } | ||||
5682 | if (not null my $code_list = $op->code_list) { | ||||
5683 | $re = $self->code_list($code_list); | ||||
5684 | } elsif (null $kid) { | ||||
5685 | $re = re_uninterp(escape_re(re_unback($op->precomp))); | ||||
5686 | } else { | ||||
5687 | ($re) = $self->regcomp($kid, 1); | ||||
5688 | } | ||||
5689 | $flags .= "r" if $pmflags & PMf_NONDESTRUCT; | ||||
5690 | $flags .= "e" if $pmflags & PMf_EVAL; | ||||
5691 | $flags .= $self->re_flags($op); | ||||
5692 | $flags = join '', sort split //, $flags; | ||||
5693 | $flags = $substwords{$flags} if $substwords{$flags}; | ||||
5694 | my $core_s = $self->keyword("s"); # maybe CORE::s | ||||
5695 | if ($binop) { | ||||
5696 | return $self->maybe_parens("$var =~ $core_s" | ||||
5697 | . double_delim($re, $repl) . $flags, | ||||
5698 | $cx, 20); | ||||
5699 | } else { | ||||
5700 | return "$core_s". double_delim($re, $repl) . $flags; | ||||
5701 | } | ||||
5702 | } | ||||
5703 | |||||
5704 | sub is_lexical_subs { | ||||
5705 | my (@ops) = shift; | ||||
5706 | for my $op (@ops) { | ||||
5707 | return 0 if $op->name !~ /\A(?:introcv|clonecv)\z/; | ||||
5708 | } | ||||
5709 | return 1; | ||||
5710 | } | ||||
5711 | |||||
5712 | # Pretend these two ops do not exist. The perl parser adds them to the | ||||
5713 | # beginning of any block containing my-sub declarations, whereas we handle | ||||
5714 | # the subs in pad_subs and next_todo. | ||||
5715 | 1 | 200ns | *pp_clonecv = *pp_introcv; | ||
5716 | sub pp_introcv { | ||||
5717 | my $self = shift; | ||||
5718 | my($op, $cx) = @_; | ||||
5719 | # For now, deparsing doesn't worry about the distinction between introcv | ||||
5720 | # and clonecv, so pretend this op doesn't exist: | ||||
5721 | return ''; | ||||
5722 | } | ||||
5723 | |||||
5724 | sub pp_padcv { | ||||
5725 | my $self = shift; | ||||
5726 | my($op, $cx) = @_; | ||||
5727 | return $self->padany($op); | ||||
5728 | } | ||||
5729 | |||||
5730 | 1 | 2µs | my %lvref_funnies = ( | ||
5731 | OPpLVREF_SV, => '$', | ||||
5732 | OPpLVREF_AV, => '@', | ||||
5733 | OPpLVREF_HV, => '%', | ||||
5734 | OPpLVREF_CV, => '&', | ||||
5735 | ); | ||||
5736 | |||||
5737 | sub pp_refassign { | ||||
5738 | my ($self, $op, $cx) = @_; | ||||
5739 | my $left; | ||||
5740 | if ($op->private & OPpLVREF_ELEM) { | ||||
5741 | $left = $op->first->sibling; | ||||
5742 | $left = maybe_local(@_, elem($self, $left, undef, | ||||
5743 | $left->targ == OP_AELEM | ||||
5744 | ? qw([ ] padav) | ||||
5745 | : qw({ } padhv))); | ||||
5746 | } elsif ($op->flags & OPf_STACKED) { | ||||
5747 | $left = maybe_local(@_, | ||||
5748 | $lvref_funnies{$op->private & OPpLVREF_TYPE} | ||||
5749 | . $self->deparse($op->first->sibling)); | ||||
5750 | } else { | ||||
5751 | $left = &pp_padsv; | ||||
5752 | } | ||||
5753 | my $right = $self->deparse_binop_right($op, $op->first, 7); | ||||
5754 | return $self->maybe_parens("\\$left = $right", $cx, 7); | ||||
5755 | } | ||||
5756 | |||||
5757 | sub pp_lvref { | ||||
5758 | my ($self, $op, $cx) = @_; | ||||
5759 | my $code; | ||||
5760 | if ($op->private & OPpLVREF_ELEM) { | ||||
5761 | $code = $op->first->name =~ /av\z/ ? &pp_aelem : &pp_helem; | ||||
5762 | } elsif ($op->flags & OPf_STACKED) { | ||||
5763 | $code = maybe_local(@_, | ||||
5764 | $lvref_funnies{$op->private & OPpLVREF_TYPE} | ||||
5765 | . $self->deparse($op->first)); | ||||
5766 | } else { | ||||
5767 | $code = &pp_padsv; | ||||
5768 | } | ||||
5769 | "\\$code"; | ||||
5770 | } | ||||
5771 | |||||
5772 | sub pp_lvrefslice { | ||||
5773 | my ($self, $op, $cx) = @_; | ||||
5774 | '\\' . ($op->last->name =~ /av\z/ ? &pp_aslice : &pp_hslice); | ||||
5775 | } | ||||
5776 | |||||
5777 | sub pp_lvavref { | ||||
5778 | my ($self, $op, $cx) = @_; | ||||
5779 | '\\(' . ($op->flags & OPf_STACKED | ||||
5780 | ? maybe_local(@_, rv2x(@_, "\@")) | ||||
5781 | : &pp_padsv) . ')' | ||||
5782 | } | ||||
5783 | |||||
5784 | 1 | 15µs | 1; | ||
5785 | __END__ | ||||
# spent 3µs within B::Deparse::CORE:qr which was called:
# once (3µs+0s) by B::Deparse::BEGIN@4588 at line 4598 | |||||
sub B::Deparse::CORE:sort; # opcode |