| Commit | Line | Data |
|---|
| e807ee50 |
1 | #define PERL_IN_TOKE_C |
| 94caac6e |
2 | #define PERL_CORE |
| 3 | #define PERL_NO_GET_CONTEXT |
| 94caac6e |
4 | #include "EXTERN.h" |
| 5 | #include "perl.h" |
| 6 | #include "XSUB.h" |
| 7 | #undef printf |
| e807ee50 |
8 | #include "stolen_chunk_of_toke.c" |
| 94caac6e |
9 | #include <stdio.h> |
| 10 | #include <string.h> |
| 11 | |
| 12 | #define LEX_NORMAL 10 |
| 13 | #define LEX_INTERPNORMAL 9 |
| 14 | |
| 15 | /* placeholders for PL_check entries we wrap */ |
| 16 | |
| 17 | STATIC OP *(*dd_old_ck_rv2cv)(pTHX_ OP *op); |
| 18 | STATIC OP *(*dd_old_ck_nextstate)(pTHX_ OP *op); |
| 19 | |
| 20 | /* flag to trigger removal of temporary declaree sub */ |
| 21 | |
| 22 | static int in_declare = 0; |
| 23 | |
| 24 | /* replacement PL_check rv2cv entry */ |
| 25 | |
| 26 | STATIC OP *dd_ck_rv2cv(pTHX_ OP *o) { |
| 27 | OP* kid; |
| 28 | char* s; |
| 29 | char tmpbuf[sizeof PL_tokenbuf]; |
| 30 | STRLEN len; |
| 31 | HV *stash; |
| 32 | HV* is_declarator; |
| 33 | SV** is_declarator_pack_ref; |
| 34 | HV* is_declarator_pack_hash; |
| 35 | SV** is_declarator_flag_ref; |
| 36 | char* cb_args[4]; |
| 37 | |
| 38 | o = dd_old_ck_rv2cv(aTHX_ o); /* let the original do its job */ |
| 39 | |
| 40 | if (in_declare) { |
| 41 | cb_args[0] = NULL; |
| 42 | call_argv("Devel::Declare::done_declare", G_VOID|G_DISCARD, cb_args); |
| 43 | in_declare = 0; |
| 44 | return o; |
| 45 | } |
| 46 | |
| 47 | kid = cUNOPo->op_first; |
| 48 | |
| 49 | if (kid->op_type != OP_GV) /* not a GV so ignore */ |
| 50 | return o; |
| 51 | |
| 52 | if (PL_lex_state != LEX_NORMAL && PL_lex_state != LEX_INTERPNORMAL) |
| 53 | return o; /* not lexing? */ |
| 54 | |
| 55 | stash = GvSTASH(kGVOP_gv); |
| 56 | |
| 57 | /* printf("Checking GV %s -> %s\n", HvNAME(stash), GvNAME(kGVOP_gv)); */ |
| 58 | |
| 59 | is_declarator = get_hv("Devel::Declare::declarators", FALSE); |
| 60 | |
| 61 | if (!is_declarator) |
| 62 | return o; |
| 63 | |
| 64 | is_declarator_pack_ref = hv_fetch(is_declarator, HvNAME(stash), |
| 65 | strlen(HvNAME(stash)), FALSE); |
| 66 | |
| 67 | if (!is_declarator_pack_ref || !SvROK(*is_declarator_pack_ref)) |
| 68 | return o; /* not a hashref */ |
| 69 | |
| 70 | is_declarator_pack_hash = (HV*) SvRV(*is_declarator_pack_ref); |
| 71 | |
| 72 | is_declarator_flag_ref = hv_fetch(is_declarator_pack_hash, GvNAME(kGVOP_gv), |
| 73 | strlen(GvNAME(kGVOP_gv)), FALSE); |
| 74 | |
| 75 | if (!is_declarator_flag_ref || !SvTRUE(*is_declarator_flag_ref)) |
| 76 | return o; |
| 77 | |
| 78 | s = PL_bufptr; /* copy the current buffer pointer */ |
| 79 | |
| 80 | while (s < PL_bufend && isSPACE(*s)) s++; |
| 81 | if (memEQ(s, PL_tokenbuf, strlen(PL_tokenbuf))) |
| 82 | s += strlen(PL_tokenbuf); |
| 83 | else |
| 84 | return o; |
| 85 | |
| 86 | /* find next word */ |
| 87 | |
| 88 | s = skipspace(s); |
| 89 | |
| 90 | /* 0 in arg 4 is allow_package - not trying that yet :) */ |
| 91 | |
| 92 | s = scan_word(s, tmpbuf, sizeof tmpbuf, 0, &len); |
| 93 | |
| 94 | if (len) { |
| 95 | cb_args[0] = HvNAME(stash); |
| 96 | cb_args[1] = GvNAME(kGVOP_gv); |
| 97 | cb_args[2] = tmpbuf; |
| 98 | cb_args[3] = NULL; |
| 99 | call_argv("Devel::Declare::init_declare", G_VOID|G_DISCARD, cb_args); |
| 100 | in_declare = 1; |
| 101 | } |
| 102 | |
| 103 | return o; |
| 104 | } |
| 105 | |
| 106 | static int initialized = 0; |
| 107 | |
| 108 | MODULE = Devel::Declare PACKAGE = Devel::Declare |
| 109 | |
| 110 | PROTOTYPES: DISABLE |
| 111 | |
| 112 | void |
| 113 | setup() |
| 114 | CODE: |
| 115 | if (!initialized++) { |
| 116 | dd_old_ck_rv2cv = PL_check[OP_RV2CV]; |
| 117 | PL_check[OP_RV2CV] = dd_ck_rv2cv; |
| 118 | } |
| 119 | |
| 120 | void |
| 121 | teardown() |
| 122 | CODE: |
| 123 | /* ensure we only uninit when number of teardown calls matches |
| 124 | number of setup calls */ |
| 125 | if (initialized && !--initialized) { |
| 126 | PL_check[OP_RV2CV] = dd_old_ck_rv2cv; |
| 127 | } |
projects / p5sagit/Devel-Declare.git / blame