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package wildproto; |
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$VERSION = '1.0.1'; |
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4
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435
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use base pragmatic; |
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632
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6
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bootstrap xsub; |
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use xsub q{ |
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static bool active = FALSE; |
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OP *(*old_ck_entersub)(pTHX_ OP *); |
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static OP *new_ck_entersub(pTHX_ OP *o) { |
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OP *op; |
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char *real_proto = NULL; |
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char *copy_proto = NULL; |
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if (active) { |
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UNOP *uno = (UNOP *)o; |
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OP *prev; |
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OP *argop; |
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OP *cvop; |
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char *proto = 0; |
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CV *cv = 0; |
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SVOP *tmpop; |
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if (o->op_private & OPpENTERSUB_AMPER) |
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goto real_op; |
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prev = uno->op_first->op_sibling ? o : uno->op_first; |
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prev = ((UNOP *)prev)->op_first; |
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argop = prev->op_sibling; |
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for (cvop = argop; cvop->op_sibling; cvop = cvop->op_sibling); |
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if (cvop->op_type != OP_RV2CV) |
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goto real_op; |
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if (cvop->op_private & OPpENTERSUB_AMPER) |
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goto real_op; |
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tmpop = (SVOP*)((UNOP*)cvop)->op_first; |
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if (tmpop->op_type != OP_GV) |
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goto real_op; |
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cv = GvCVu(cGVOPx_gv(tmpop)); |
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if (!cv || !SvPOK(cv)) |
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goto real_op; |
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proto = SvPV_nolen((SV*)cv); |
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while (argop != cvop) { |
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#ifdef WACKYPROTO |
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int type = 0; |
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#endif |
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while (*proto == ' ' || *proto == ';') |
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proto++; |
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if (!*proto || *proto == '@' || *proto == '%') |
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break; |
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if (*proto == '\\\\' && *(proto+1) == '?') |
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#ifdef WACKYPROTO |
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type = 1; |
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else if (*(proto+0) == '(' && *(proto+1) == ')') |
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type = 2; |
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else if (*(proto+0) == '[' && *(proto+1) == ']') type = 3; |
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else if (*(proto+0) == '{' && *(proto+1) == '}') type = 4; |
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else type = 0; |
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if (type) |
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#endif |
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{ |
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OP *next = argop->op_sibling; |
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argop->op_sibling = 0; |
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#ifdef WACKYPROTO |
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switch (type) { |
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case 1: |
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#endif |
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argop = newUNOP(OP_REFGEN, 0, mod(argop, OP_REFGEN)); |
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#ifdef WACKYPROTO |
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break; |
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case 2: |
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argop = newUNOP(OP_REFGEN, 0, mod(argop, OP_REFGEN)); |
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argop = newANONLIST(argop); |
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break; |
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case 3: |
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argop = newANONLIST(argop); |
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break; |
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case 4: |
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argop = newANONHASH(argop); |
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break; |
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} |
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#endif |
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argop->op_sibling = next; |
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prev->op_sibling = argop; |
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if (!real_proto) { |
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real_proto = proto; |
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copy_proto = savepv(proto); |
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} |
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*proto++ = ' '; |
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*proto = '$'; |
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} |
103
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104
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if (*proto == '\\\\') |
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if (!*++proto) |
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break; |
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108
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proto++; |
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prev = argop; |
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argop = argop->op_sibling; |
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} |
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} |
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114
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real_op: |
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op = old_ck_entersub(aTHX_ o); |
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if (real_proto) |
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strcpy(real_proto, copy_proto); |
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return op; |
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} |
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}; |
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122
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use xsub enable => q($), q{ |
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if (active) |
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return &PL_sv_yes; |
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126
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old_ck_entersub = PL_check[OP_ENTERSUB]; |
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PL_check[OP_ENTERSUB] = new_ck_entersub; |
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129
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active = TRUE; |
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return &PL_sv_yes; |
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}; |
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133
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use xsub disable => q($), q{ |
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if (!active) |
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return &PL_sv_yes; |
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137
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active = FALSE; |
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if (PL_check[OP_ENTERSUB] == new_ck_entersub) { |
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PL_check[OP_ENTERSUB] = old_ck_entersub; |
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} else { |
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Perl_warn(aTHX_ "PL_check[OP_ENTERSUB] apparently hijacked at %s line %d\n", |
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__FILE__, __LINE__); |
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} |
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145
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return &PL_sv_no; |
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}; |
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1 |