1 | /* dump.c |
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2 | * |
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3 | * Copyright (c) 1991-1997, Larry Wall |
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4 | * |
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5 | * You may distribute under the terms of either the GNU General Public |
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6 | * License or the Artistic License, as specified in the README file. |
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7 | * |
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8 | */ |
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9 | |
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10 | /* |
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11 | * "'You have talked long in your sleep, Frodo,' said Gandalf gently, 'and |
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12 | * it has not been hard for me to read your mind and memory.'" |
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13 | */ |
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14 | |
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15 | #include "EXTERN.h" |
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16 | #include "perl.h" |
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17 | |
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18 | #ifndef DEBUGGING |
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19 | void |
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20 | dump_all() |
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21 | { |
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22 | } |
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23 | #else /* Rest of file is for DEBUGGING */ |
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24 | |
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25 | #ifdef I_STDARG |
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26 | static void dump(char *pat, ...); |
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27 | #else |
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28 | static void dump(); |
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29 | #endif |
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30 | |
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31 | void |
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32 | dump_all() |
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33 | { |
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34 | PerlIO_setlinebuf(Perl_debug_log); |
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35 | if (main_root) |
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36 | dump_op(main_root); |
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37 | dump_packsubs(defstash); |
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38 | } |
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39 | |
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40 | void |
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41 | dump_packsubs(stash) |
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42 | HV* stash; |
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43 | { |
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44 | I32 i; |
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45 | HE *entry; |
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46 | |
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47 | if (!HvARRAY(stash)) |
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48 | return; |
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49 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
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50 | for (entry = HvARRAY(stash)[i]; entry; entry = HeNEXT(entry)) { |
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51 | GV *gv = (GV*)HeVAL(entry); |
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52 | HV *hv; |
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53 | if (GvCVu(gv)) |
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54 | dump_sub(gv); |
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55 | if (GvFORM(gv)) |
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56 | dump_form(gv); |
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57 | if (HeKEY(entry)[HeKLEN(entry)-1] == ':' && |
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58 | (hv = GvHV(gv)) && HvNAME(hv) && hv != defstash) |
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59 | dump_packsubs(hv); /* nested package */ |
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60 | } |
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61 | } |
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62 | } |
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63 | |
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64 | void |
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65 | dump_sub(gv) |
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66 | GV* gv; |
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67 | { |
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68 | SV *sv = sv_newmortal(); |
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69 | |
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70 | gv_fullname3(sv, gv, Nullch); |
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71 | dump("\nSUB %s = ", SvPVX(sv)); |
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72 | if (CvXSUB(GvCV(gv))) |
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73 | dump("(xsub 0x%x %d)\n", |
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74 | (long)CvXSUB(GvCV(gv)), |
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75 | CvXSUBANY(GvCV(gv)).any_i32); |
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76 | else if (CvROOT(GvCV(gv))) |
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77 | dump_op(CvROOT(GvCV(gv))); |
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78 | else |
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79 | dump("<undef>\n"); |
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80 | } |
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81 | |
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82 | void |
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83 | dump_form(gv) |
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84 | GV* gv; |
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85 | { |
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86 | SV *sv = sv_newmortal(); |
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87 | |
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88 | gv_fullname3(sv, gv, Nullch); |
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89 | dump("\nFORMAT %s = ", SvPVX(sv)); |
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90 | if (CvROOT(GvFORM(gv))) |
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91 | dump_op(CvROOT(GvFORM(gv))); |
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92 | else |
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93 | dump("<undef>\n"); |
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94 | } |
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95 | |
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96 | void |
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97 | dump_eval() |
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98 | { |
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99 | dump_op(eval_root); |
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100 | } |
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101 | |
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102 | void |
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103 | dump_op(op) |
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104 | register OP *op; |
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105 | { |
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106 | dump("{\n"); |
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107 | if (op->op_seq) |
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108 | PerlIO_printf(Perl_debug_log, "%-4d", op->op_seq); |
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109 | else |
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110 | PerlIO_printf(Perl_debug_log, " "); |
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111 | dump("TYPE = %s ===> ", op_name[op->op_type]); |
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112 | if (op->op_next) { |
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113 | if (op->op_seq) |
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114 | PerlIO_printf(Perl_debug_log, "%d\n", op->op_next->op_seq); |
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115 | else |
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116 | PerlIO_printf(Perl_debug_log, "(%d)\n", op->op_next->op_seq); |
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117 | } |
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118 | else |
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119 | PerlIO_printf(Perl_debug_log, "DONE\n"); |
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120 | dumplvl++; |
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121 | if (op->op_targ) { |
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122 | if (op->op_type == OP_NULL) |
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123 | dump(" (was %s)\n", op_name[op->op_targ]); |
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124 | else |
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125 | dump("TARG = %d\n", op->op_targ); |
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126 | } |
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127 | #ifdef DUMPADDR |
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128 | dump("ADDR = 0x%lx => 0x%lx\n",op, op->op_next); |
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129 | #endif |
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130 | if (op->op_flags) { |
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131 | SV *tmpsv = newSVpv("", 0); |
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132 | switch (op->op_flags & OPf_WANT) { |
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133 | case OPf_WANT_VOID: |
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134 | sv_catpv(tmpsv, ",VOID"); |
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135 | break; |
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136 | case OPf_WANT_SCALAR: |
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137 | sv_catpv(tmpsv, ",SCALAR"); |
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138 | break; |
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139 | case OPf_WANT_LIST: |
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140 | sv_catpv(tmpsv, ",LIST"); |
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141 | break; |
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142 | default: |
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143 | sv_catpv(tmpsv, ",UNKNOWN"); |
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144 | break; |
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145 | } |
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146 | if (op->op_flags & OPf_KIDS) |
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147 | sv_catpv(tmpsv, ",KIDS"); |
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148 | if (op->op_flags & OPf_PARENS) |
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149 | sv_catpv(tmpsv, ",PARENS"); |
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150 | if (op->op_flags & OPf_STACKED) |
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151 | sv_catpv(tmpsv, ",STACKED"); |
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152 | if (op->op_flags & OPf_REF) |
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153 | sv_catpv(tmpsv, ",REF"); |
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154 | if (op->op_flags & OPf_MOD) |
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155 | sv_catpv(tmpsv, ",MOD"); |
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156 | if (op->op_flags & OPf_SPECIAL) |
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157 | sv_catpv(tmpsv, ",SPECIAL"); |
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158 | dump("FLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : ""); |
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159 | SvREFCNT_dec(tmpsv); |
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160 | } |
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161 | if (op->op_private) { |
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162 | SV *tmpsv = newSVpv("", 0); |
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163 | if (op->op_type == OP_AASSIGN) { |
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164 | if (op->op_private & OPpASSIGN_COMMON) |
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165 | sv_catpv(tmpsv, ",COMMON"); |
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166 | } |
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167 | else if (op->op_type == OP_SASSIGN) { |
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168 | if (op->op_private & OPpASSIGN_BACKWARDS) |
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169 | sv_catpv(tmpsv, ",BACKWARDS"); |
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170 | } |
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171 | else if (op->op_type == OP_TRANS) { |
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172 | if (op->op_private & OPpTRANS_SQUASH) |
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173 | sv_catpv(tmpsv, ",SQUASH"); |
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174 | if (op->op_private & OPpTRANS_DELETE) |
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175 | sv_catpv(tmpsv, ",DELETE"); |
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176 | if (op->op_private & OPpTRANS_COMPLEMENT) |
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177 | sv_catpv(tmpsv, ",COMPLEMENT"); |
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178 | } |
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179 | else if (op->op_type == OP_REPEAT) { |
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180 | if (op->op_private & OPpREPEAT_DOLIST) |
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181 | sv_catpv(tmpsv, ",DOLIST"); |
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182 | } |
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183 | else if (op->op_type == OP_ENTERSUB || |
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184 | op->op_type == OP_RV2SV || |
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185 | op->op_type == OP_RV2AV || |
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186 | op->op_type == OP_RV2HV || |
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187 | op->op_type == OP_RV2GV || |
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188 | op->op_type == OP_AELEM || |
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189 | op->op_type == OP_HELEM ) |
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190 | { |
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191 | if (op->op_type == OP_ENTERSUB) { |
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192 | if (op->op_private & OPpENTERSUB_AMPER) |
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193 | sv_catpv(tmpsv, ",AMPER"); |
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194 | if (op->op_private & OPpENTERSUB_DB) |
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195 | sv_catpv(tmpsv, ",DB"); |
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196 | } |
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197 | switch (op->op_private & OPpDEREF) { |
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198 | case OPpDEREF_SV: |
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199 | sv_catpv(tmpsv, ",SV"); |
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200 | break; |
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201 | case OPpDEREF_AV: |
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202 | sv_catpv(tmpsv, ",AV"); |
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203 | break; |
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204 | case OPpDEREF_HV: |
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205 | sv_catpv(tmpsv, ",HV"); |
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206 | break; |
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207 | } |
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208 | if (op->op_type == OP_AELEM || op->op_type == OP_HELEM) { |
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209 | if (op->op_private & OPpLVAL_DEFER) |
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210 | sv_catpv(tmpsv, ",LVAL_DEFER"); |
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211 | } |
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212 | else { |
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213 | if (op->op_private & HINT_STRICT_REFS) |
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214 | sv_catpv(tmpsv, ",STRICT_REFS"); |
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215 | } |
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216 | } |
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217 | else if (op->op_type == OP_CONST) { |
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218 | if (op->op_private & OPpCONST_BARE) |
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219 | sv_catpv(tmpsv, ",BARE"); |
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220 | } |
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221 | else if (op->op_type == OP_FLIP) { |
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222 | if (op->op_private & OPpFLIP_LINENUM) |
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223 | sv_catpv(tmpsv, ",LINENUM"); |
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224 | } |
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225 | else if (op->op_type == OP_FLOP) { |
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226 | if (op->op_private & OPpFLIP_LINENUM) |
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227 | sv_catpv(tmpsv, ",LINENUM"); |
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228 | } |
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229 | if (op->op_flags & OPf_MOD && op->op_private & OPpLVAL_INTRO) |
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230 | sv_catpv(tmpsv, ",INTRO"); |
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231 | if (SvCUR(tmpsv)) |
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232 | dump("PRIVATE = (%s)\n", SvPVX(tmpsv) + 1); |
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233 | SvREFCNT_dec(tmpsv); |
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234 | } |
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235 | |
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236 | switch (op->op_type) { |
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237 | case OP_GVSV: |
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238 | case OP_GV: |
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239 | if (cGVOP->op_gv) { |
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240 | SV *tmpsv = NEWSV(0,0); |
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241 | ENTER; |
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242 | SAVEFREESV(tmpsv); |
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243 | gv_fullname3(tmpsv, cGVOP->op_gv, Nullch); |
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244 | dump("GV = %s\n", SvPV(tmpsv, na)); |
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245 | LEAVE; |
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246 | } |
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247 | else |
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248 | dump("GV = NULL\n"); |
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249 | break; |
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250 | case OP_CONST: |
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251 | dump("SV = %s\n", SvPEEK(cSVOP->op_sv)); |
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252 | break; |
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253 | case OP_NEXTSTATE: |
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254 | case OP_DBSTATE: |
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255 | if (cCOP->cop_line) |
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256 | dump("LINE = %d\n",cCOP->cop_line); |
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257 | if (cCOP->cop_label) |
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258 | dump("LABEL = \"%s\"\n",cCOP->cop_label); |
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259 | break; |
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260 | case OP_ENTERLOOP: |
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261 | dump("REDO ===> "); |
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262 | if (cLOOP->op_redoop) |
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263 | PerlIO_printf(Perl_debug_log, "%d\n", cLOOP->op_redoop->op_seq); |
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264 | else |
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265 | PerlIO_printf(Perl_debug_log, "DONE\n"); |
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266 | dump("NEXT ===> "); |
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267 | if (cLOOP->op_nextop) |
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268 | PerlIO_printf(Perl_debug_log, "%d\n", cLOOP->op_nextop->op_seq); |
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269 | else |
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270 | PerlIO_printf(Perl_debug_log, "DONE\n"); |
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271 | dump("LAST ===> "); |
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272 | if (cLOOP->op_lastop) |
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273 | PerlIO_printf(Perl_debug_log, "%d\n", cLOOP->op_lastop->op_seq); |
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274 | else |
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275 | PerlIO_printf(Perl_debug_log, "DONE\n"); |
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276 | break; |
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277 | case OP_COND_EXPR: |
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278 | dump("TRUE ===> "); |
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279 | if (cCONDOP->op_true) |
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280 | PerlIO_printf(Perl_debug_log, "%d\n", cCONDOP->op_true->op_seq); |
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281 | else |
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282 | PerlIO_printf(Perl_debug_log, "DONE\n"); |
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283 | dump("FALSE ===> "); |
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284 | if (cCONDOP->op_false) |
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285 | PerlIO_printf(Perl_debug_log, "%d\n", cCONDOP->op_false->op_seq); |
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286 | else |
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287 | PerlIO_printf(Perl_debug_log, "DONE\n"); |
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288 | break; |
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289 | case OP_MAPWHILE: |
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290 | case OP_GREPWHILE: |
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291 | case OP_OR: |
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292 | case OP_AND: |
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293 | dump("OTHER ===> "); |
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294 | if (cLOGOP->op_other) |
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295 | PerlIO_printf(Perl_debug_log, "%d\n", cLOGOP->op_other->op_seq); |
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296 | else |
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297 | PerlIO_printf(Perl_debug_log, "DONE\n"); |
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298 | break; |
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299 | case OP_PUSHRE: |
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300 | case OP_MATCH: |
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301 | case OP_SUBST: |
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302 | dump_pm((PMOP*)op); |
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303 | break; |
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304 | default: |
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305 | break; |
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306 | } |
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307 | if (op->op_flags & OPf_KIDS) { |
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308 | OP *kid; |
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309 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) |
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310 | dump_op(kid); |
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311 | } |
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312 | dumplvl--; |
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313 | dump("}\n"); |
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314 | } |
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315 | |
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316 | void |
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317 | dump_gv(gv) |
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318 | register GV *gv; |
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319 | { |
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320 | SV *sv; |
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321 | |
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322 | if (!gv) { |
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323 | PerlIO_printf(Perl_debug_log, "{}\n"); |
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324 | return; |
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325 | } |
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326 | sv = sv_newmortal(); |
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327 | dumplvl++; |
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328 | PerlIO_printf(Perl_debug_log, "{\n"); |
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329 | gv_fullname3(sv, gv, Nullch); |
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330 | dump("GV_NAME = %s", SvPVX(sv)); |
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331 | if (gv != GvEGV(gv)) { |
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332 | gv_efullname3(sv, GvEGV(gv), Nullch); |
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333 | dump("-> %s", SvPVX(sv)); |
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334 | } |
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335 | dump("\n"); |
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336 | dumplvl--; |
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337 | dump("}\n"); |
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338 | } |
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339 | |
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340 | void |
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341 | dump_pm(pm) |
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342 | register PMOP *pm; |
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343 | { |
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344 | char ch; |
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345 | |
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346 | if (!pm) { |
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347 | dump("{}\n"); |
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348 | return; |
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349 | } |
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350 | dump("{\n"); |
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351 | dumplvl++; |
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352 | if (pm->op_pmflags & PMf_ONCE) |
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353 | ch = '?'; |
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354 | else |
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355 | ch = '/'; |
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356 | if (pm->op_pmregexp) |
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357 | dump("PMf_PRE %c%s%c%s\n", |
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358 | ch, pm->op_pmregexp->precomp, ch, |
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359 | (pm->op_private & OPpRUNTIME) ? " (RUNTIME)" : ""); |
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360 | else |
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361 | dump("PMf_PRE (RUNTIME)\n"); |
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362 | if (pm->op_type != OP_PUSHRE && pm->op_pmreplroot) { |
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363 | dump("PMf_REPL = "); |
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364 | dump_op(pm->op_pmreplroot); |
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365 | } |
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366 | if (pm->op_pmshort) { |
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367 | dump("PMf_SHORT = %s\n",SvPEEK(pm->op_pmshort)); |
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368 | } |
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369 | if (pm->op_pmflags) { |
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370 | SV *tmpsv = newSVpv("", 0); |
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371 | if (pm->op_pmflags & PMf_USED) |
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372 | sv_catpv(tmpsv, ",USED"); |
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373 | if (pm->op_pmflags & PMf_ONCE) |
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374 | sv_catpv(tmpsv, ",ONCE"); |
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375 | if (pm->op_pmflags & PMf_SCANFIRST) |
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376 | sv_catpv(tmpsv, ",SCANFIRST"); |
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377 | if (pm->op_pmflags & PMf_ALL) |
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378 | sv_catpv(tmpsv, ",ALL"); |
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379 | if (pm->op_pmflags & PMf_SKIPWHITE) |
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380 | sv_catpv(tmpsv, ",SKIPWHITE"); |
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381 | if (pm->op_pmflags & PMf_CONST) |
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382 | sv_catpv(tmpsv, ",CONST"); |
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383 | if (pm->op_pmflags & PMf_KEEP) |
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384 | sv_catpv(tmpsv, ",KEEP"); |
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385 | if (pm->op_pmflags & PMf_GLOBAL) |
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386 | sv_catpv(tmpsv, ",GLOBAL"); |
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387 | if (pm->op_pmflags & PMf_CONTINUE) |
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388 | sv_catpv(tmpsv, ",CONTINUE"); |
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389 | if (pm->op_pmflags & PMf_EVAL) |
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390 | sv_catpv(tmpsv, ",EVAL"); |
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391 | dump("PMFLAGS = (%s)\n", SvCUR(tmpsv) ? SvPVX(tmpsv) + 1 : ""); |
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392 | SvREFCNT_dec(tmpsv); |
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393 | } |
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394 | |
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395 | dumplvl--; |
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396 | dump("}\n"); |
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397 | } |
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398 | |
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399 | |
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400 | #if !defined(I_STDARG) && !defined(I_VARARGS) |
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401 | /* VARARGS1 */ |
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402 | static void dump(arg1,arg2,arg3,arg4,arg5) |
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403 | char *arg1; |
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404 | long arg2, arg3, arg4, arg5; |
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405 | { |
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406 | I32 i; |
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407 | |
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408 | for (i = dumplvl*4; i; i--) |
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409 | (void)PerlIO_putc(Perl_debug_log,' '); |
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410 | PerlIO_printf(Perl_debug_log, arg1, arg2, arg3, arg4, arg5); |
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411 | } |
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412 | |
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413 | #else |
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414 | |
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415 | #ifdef I_STDARG |
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416 | static void |
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417 | dump(char *pat,...) |
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418 | #else |
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419 | /*VARARGS0*/ |
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420 | static void |
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421 | dump(pat,va_alist) |
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422 | char *pat; |
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423 | va_dcl |
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424 | #endif |
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425 | { |
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426 | I32 i; |
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427 | va_list args; |
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428 | |
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429 | #ifdef I_STDARG |
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430 | va_start(args, pat); |
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431 | #else |
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432 | va_start(args); |
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433 | #endif |
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434 | for (i = dumplvl*4; i; i--) |
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435 | (void)PerlIO_putc(Perl_debug_log,' '); |
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436 | PerlIO_vprintf(Perl_debug_log,pat,args); |
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437 | va_end(args); |
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438 | } |
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439 | #endif |
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440 | |
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441 | #endif |
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