1 | /* scope.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 | * "For the fashion of Minas Tirith was such that it was built on seven |
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12 | * levels..." |
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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 | SV** |
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19 | stack_grow(sp, p, n) |
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20 | SV** sp; |
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21 | SV** p; |
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22 | int n; |
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23 | { |
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24 | stack_sp = sp; |
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25 | av_extend(curstack, (p - stack_base) + (n) + 128); |
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26 | return stack_sp; |
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27 | } |
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28 | |
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29 | I32 |
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30 | cxinc() |
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31 | { |
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32 | cxstack_max = cxstack_max * 3 / 2; |
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33 | Renew(cxstack, cxstack_max + 1, CONTEXT); /* XXX should fix CXINC macro */ |
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34 | return cxstack_ix + 1; |
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35 | } |
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36 | |
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37 | void |
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38 | push_return(retop) |
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39 | OP *retop; |
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40 | { |
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41 | if (retstack_ix == retstack_max) { |
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42 | retstack_max = retstack_max * 3 / 2; |
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43 | Renew(retstack, retstack_max, OP*); |
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44 | } |
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45 | retstack[retstack_ix++] = retop; |
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46 | } |
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47 | |
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48 | OP * |
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49 | pop_return() |
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50 | { |
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51 | if (retstack_ix > 0) |
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52 | return retstack[--retstack_ix]; |
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53 | else |
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54 | return Nullop; |
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55 | } |
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56 | |
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57 | void |
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58 | push_scope() |
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59 | { |
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60 | if (scopestack_ix == scopestack_max) { |
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61 | scopestack_max = scopestack_max * 3 / 2; |
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62 | Renew(scopestack, scopestack_max, I32); |
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63 | } |
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64 | scopestack[scopestack_ix++] = savestack_ix; |
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65 | |
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66 | } |
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67 | |
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68 | void |
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69 | pop_scope() |
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70 | { |
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71 | I32 oldsave = scopestack[--scopestack_ix]; |
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72 | LEAVE_SCOPE(oldsave); |
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73 | } |
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74 | |
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75 | void |
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76 | markstack_grow() |
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77 | { |
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78 | I32 oldmax = markstack_max - markstack; |
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79 | I32 newmax = oldmax * 3 / 2; |
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80 | |
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81 | Renew(markstack, newmax, I32); |
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82 | markstack_ptr = markstack + oldmax; |
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83 | markstack_max = markstack + newmax; |
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84 | } |
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85 | |
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86 | void |
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87 | savestack_grow() |
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88 | { |
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89 | savestack_max = savestack_max * 3 / 2; |
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90 | Renew(savestack, savestack_max, ANY); |
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91 | } |
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92 | |
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93 | void |
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94 | free_tmps() |
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95 | { |
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96 | /* XXX should tmps_floor live in cxstack? */ |
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97 | I32 myfloor = tmps_floor; |
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98 | while (tmps_ix > myfloor) { /* clean up after last statement */ |
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99 | SV* sv = tmps_stack[tmps_ix]; |
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100 | tmps_stack[tmps_ix--] = Nullsv; |
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101 | if (sv) { |
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102 | #ifdef DEBUGGING |
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103 | SvTEMP_off(sv); |
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104 | #endif |
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105 | SvREFCNT_dec(sv); /* note, can modify tmps_ix!!! */ |
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106 | } |
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107 | } |
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108 | } |
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109 | |
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110 | static SV * |
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111 | save_scalar_at(sptr) |
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112 | SV **sptr; |
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113 | { |
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114 | register SV *sv; |
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115 | SV *osv = *sptr; |
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116 | |
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117 | sv = *sptr = NEWSV(0,0); |
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118 | if (SvTYPE(osv) >= SVt_PVMG && SvMAGIC(osv) && SvTYPE(osv) != SVt_PVGV) { |
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119 | sv_upgrade(sv, SvTYPE(osv)); |
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120 | if (SvGMAGICAL(osv)) { |
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121 | MAGIC* mg; |
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122 | bool oldtainted = tainted; |
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123 | mg_get(osv); |
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124 | if (tainting && tainted && (mg = mg_find(osv, 't'))) { |
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125 | SAVESPTR(mg->mg_obj); |
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126 | mg->mg_obj = osv; |
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127 | } |
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128 | SvFLAGS(osv) |= (SvFLAGS(osv) & |
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129 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
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130 | tainted = oldtainted; |
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131 | } |
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132 | SvMAGIC(sv) = SvMAGIC(osv); |
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133 | SvFLAGS(sv) |= SvMAGICAL(osv); |
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134 | localizing = 1; |
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135 | SvSETMAGIC(sv); |
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136 | localizing = 0; |
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137 | } |
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138 | return sv; |
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139 | } |
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140 | |
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141 | SV * |
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142 | save_scalar(gv) |
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143 | GV *gv; |
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144 | { |
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145 | SSCHECK(3); |
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146 | SSPUSHPTR(gv); |
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147 | SSPUSHPTR(GvSV(gv)); |
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148 | SSPUSHINT(SAVEt_SV); |
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149 | return save_scalar_at(&GvSV(gv)); |
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150 | } |
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151 | |
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152 | SV* |
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153 | save_svref(sptr) |
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154 | SV **sptr; |
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155 | { |
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156 | SSCHECK(3); |
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157 | SSPUSHPTR(sptr); |
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158 | SSPUSHPTR(*sptr); |
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159 | SSPUSHINT(SAVEt_SVREF); |
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160 | return save_scalar_at(sptr); |
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161 | } |
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162 | |
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163 | void |
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164 | save_gp(gv, empty) |
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165 | GV *gv; |
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166 | I32 empty; |
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167 | { |
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168 | SSCHECK(6); |
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169 | SSPUSHIV((IV)SvLEN(gv)); |
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170 | SvLEN(gv) = 0; /* forget that anything was allocated here */ |
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171 | SSPUSHIV((IV)SvCUR(gv)); |
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172 | SSPUSHPTR(SvPVX(gv)); |
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173 | SvPOK_off(gv); |
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174 | SSPUSHPTR(SvREFCNT_inc(gv)); |
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175 | SSPUSHPTR(GvGP(gv)); |
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176 | SSPUSHINT(SAVEt_GP); |
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177 | |
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178 | if (empty) { |
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179 | register GP *gp; |
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180 | Newz(602, gp, 1, GP); |
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181 | GvGP(gv) = gp_ref(gp); |
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182 | GvSV(gv) = NEWSV(72,0); |
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183 | GvLINE(gv) = curcop->cop_line; |
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184 | GvEGV(gv) = gv; |
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185 | } |
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186 | else { |
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187 | gp_ref(GvGP(gv)); |
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188 | GvINTRO_on(gv); |
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189 | } |
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190 | } |
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191 | |
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192 | AV * |
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193 | save_ary(gv) |
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194 | GV *gv; |
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195 | { |
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196 | AV *oav, *av; |
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197 | |
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198 | SSCHECK(3); |
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199 | SSPUSHPTR(gv); |
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200 | SSPUSHPTR(oav = GvAVn(gv)); |
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201 | SSPUSHINT(SAVEt_AV); |
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202 | |
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203 | GvAV(gv) = Null(AV*); |
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204 | av = GvAVn(gv); |
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205 | if (SvMAGIC(oav)) { |
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206 | SvMAGIC(av) = SvMAGIC(oav); |
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207 | SvFLAGS(av) |= SvMAGICAL(oav); |
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208 | SvMAGICAL_off(oav); |
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209 | SvMAGIC(oav) = 0; |
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210 | localizing = 1; |
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211 | SvSETMAGIC((SV*)av); |
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212 | localizing = 0; |
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213 | } |
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214 | return av; |
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215 | } |
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216 | |
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217 | HV * |
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218 | save_hash(gv) |
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219 | GV *gv; |
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220 | { |
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221 | HV *ohv, *hv; |
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222 | |
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223 | SSCHECK(3); |
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224 | SSPUSHPTR(gv); |
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225 | SSPUSHPTR(ohv = GvHVn(gv)); |
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226 | SSPUSHINT(SAVEt_HV); |
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227 | |
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228 | GvHV(gv) = Null(HV*); |
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229 | hv = GvHVn(gv); |
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230 | if (SvMAGIC(ohv)) { |
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231 | SvMAGIC(hv) = SvMAGIC(ohv); |
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232 | SvFLAGS(hv) |= SvMAGICAL(ohv); |
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233 | SvMAGICAL_off(ohv); |
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234 | SvMAGIC(ohv) = 0; |
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235 | localizing = 1; |
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236 | SvSETMAGIC((SV*)hv); |
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237 | localizing = 0; |
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238 | } |
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239 | return hv; |
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240 | } |
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241 | |
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242 | void |
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243 | save_item(item) |
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244 | register SV *item; |
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245 | { |
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246 | register SV *sv; |
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247 | |
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248 | SSCHECK(3); |
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249 | SSPUSHPTR(item); /* remember the pointer */ |
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250 | sv = NEWSV(0,0); |
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251 | sv_setsv(sv,item); |
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252 | SSPUSHPTR(sv); /* remember the value */ |
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253 | SSPUSHINT(SAVEt_ITEM); |
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254 | } |
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255 | |
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256 | void |
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257 | save_int(intp) |
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258 | int *intp; |
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259 | { |
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260 | SSCHECK(3); |
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261 | SSPUSHINT(*intp); |
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262 | SSPUSHPTR(intp); |
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263 | SSPUSHINT(SAVEt_INT); |
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264 | } |
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265 | |
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266 | void |
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267 | save_long(longp) |
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268 | long *longp; |
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269 | { |
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270 | SSCHECK(3); |
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271 | SSPUSHLONG(*longp); |
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272 | SSPUSHPTR(longp); |
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273 | SSPUSHINT(SAVEt_LONG); |
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274 | } |
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275 | |
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276 | void |
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277 | save_I32(intp) |
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278 | I32 *intp; |
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279 | { |
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280 | SSCHECK(3); |
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281 | SSPUSHINT(*intp); |
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282 | SSPUSHPTR(intp); |
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283 | SSPUSHINT(SAVEt_I32); |
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284 | } |
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285 | |
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286 | void |
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287 | save_I16(intp) |
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288 | I16 *intp; |
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289 | { |
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290 | SSCHECK(3); |
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291 | SSPUSHINT(*intp); |
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292 | SSPUSHPTR(intp); |
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293 | SSPUSHINT(SAVEt_I16); |
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294 | } |
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295 | |
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296 | void |
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297 | save_iv(ivp) |
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298 | IV *ivp; |
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299 | { |
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300 | SSCHECK(3); |
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301 | SSPUSHIV(*ivp); |
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302 | SSPUSHPTR(ivp); |
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303 | SSPUSHINT(SAVEt_IV); |
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304 | } |
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305 | |
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306 | /* Cannot use save_sptr() to store a char* since the SV** cast will |
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307 | * force word-alignment and we'll miss the pointer. |
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308 | */ |
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309 | void |
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310 | save_pptr(pptr) |
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311 | char **pptr; |
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312 | { |
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313 | SSCHECK(3); |
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314 | SSPUSHPTR(*pptr); |
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315 | SSPUSHPTR(pptr); |
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316 | SSPUSHINT(SAVEt_PPTR); |
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317 | } |
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318 | |
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319 | void |
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320 | save_sptr(sptr) |
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321 | SV **sptr; |
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322 | { |
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323 | SSCHECK(3); |
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324 | SSPUSHPTR(*sptr); |
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325 | SSPUSHPTR(sptr); |
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326 | SSPUSHINT(SAVEt_SPTR); |
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327 | } |
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328 | |
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329 | void |
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330 | save_nogv(gv) |
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331 | GV *gv; |
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332 | { |
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333 | SSCHECK(2); |
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334 | SSPUSHPTR(gv); |
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335 | SSPUSHINT(SAVEt_NSTAB); |
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336 | } |
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337 | |
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338 | void |
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339 | save_hptr(hptr) |
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340 | HV **hptr; |
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341 | { |
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342 | SSCHECK(3); |
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343 | SSPUSHPTR(*hptr); |
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344 | SSPUSHPTR(hptr); |
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345 | SSPUSHINT(SAVEt_HPTR); |
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346 | } |
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347 | |
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348 | void |
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349 | save_aptr(aptr) |
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350 | AV **aptr; |
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351 | { |
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352 | SSCHECK(3); |
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353 | SSPUSHPTR(*aptr); |
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354 | SSPUSHPTR(aptr); |
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355 | SSPUSHINT(SAVEt_APTR); |
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356 | } |
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357 | |
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358 | void |
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359 | save_freesv(sv) |
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360 | SV *sv; |
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361 | { |
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362 | SSCHECK(2); |
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363 | SSPUSHPTR(sv); |
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364 | SSPUSHINT(SAVEt_FREESV); |
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365 | } |
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366 | |
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367 | void |
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368 | save_freeop(op) |
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369 | OP *op; |
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370 | { |
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371 | SSCHECK(2); |
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372 | SSPUSHPTR(op); |
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373 | SSPUSHINT(SAVEt_FREEOP); |
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374 | } |
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375 | |
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376 | void |
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377 | save_freepv(pv) |
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378 | char *pv; |
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379 | { |
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380 | SSCHECK(2); |
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381 | SSPUSHPTR(pv); |
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382 | SSPUSHINT(SAVEt_FREEPV); |
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383 | } |
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384 | |
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385 | void |
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386 | save_clearsv(svp) |
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387 | SV** svp; |
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388 | { |
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389 | SSCHECK(2); |
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390 | SSPUSHLONG((long)(svp-curpad)); |
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391 | SSPUSHINT(SAVEt_CLEARSV); |
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392 | } |
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393 | |
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394 | void |
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395 | save_delete(hv,key,klen) |
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396 | HV *hv; |
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397 | char *key; |
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398 | I32 klen; |
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399 | { |
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400 | SSCHECK(4); |
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401 | SSPUSHINT(klen); |
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402 | SSPUSHPTR(key); |
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403 | SSPUSHPTR(hv); |
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404 | SSPUSHINT(SAVEt_DELETE); |
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405 | } |
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406 | |
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407 | void |
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408 | save_list(sarg,maxsarg) |
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409 | register SV **sarg; |
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410 | I32 maxsarg; |
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411 | { |
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412 | register SV *sv; |
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413 | register I32 i; |
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414 | |
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415 | SSCHECK(3 * maxsarg); |
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416 | for (i = 1; i <= maxsarg; i++) { |
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417 | SSPUSHPTR(sarg[i]); /* remember the pointer */ |
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418 | sv = NEWSV(0,0); |
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419 | sv_setsv(sv,sarg[i]); |
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420 | SSPUSHPTR(sv); /* remember the value */ |
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421 | SSPUSHINT(SAVEt_ITEM); |
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422 | } |
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423 | } |
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424 | |
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425 | void |
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426 | save_destructor(f,p) |
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427 | void (*f) _((void*)); |
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428 | void* p; |
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429 | { |
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430 | SSCHECK(3); |
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431 | SSPUSHDPTR(f); |
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432 | SSPUSHPTR(p); |
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433 | SSPUSHINT(SAVEt_DESTRUCTOR); |
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434 | } |
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435 | |
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436 | void |
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437 | leave_scope(base) |
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438 | I32 base; |
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439 | { |
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440 | register SV *sv; |
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441 | register SV *value; |
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442 | register GV *gv; |
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443 | register AV *av; |
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444 | register HV *hv; |
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445 | register void* ptr; |
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446 | |
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447 | if (base < -1) |
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448 | croak("panic: corrupt saved stack index"); |
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449 | while (savestack_ix > base) { |
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450 | switch (SSPOPINT) { |
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451 | case SAVEt_ITEM: /* normal string */ |
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452 | value = (SV*)SSPOPPTR; |
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453 | sv = (SV*)SSPOPPTR; |
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454 | sv_replace(sv,value); |
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455 | localizing = 2; |
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456 | SvSETMAGIC(sv); |
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457 | localizing = 0; |
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458 | break; |
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459 | case SAVEt_SV: /* scalar reference */ |
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460 | value = (SV*)SSPOPPTR; |
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461 | gv = (GV*)SSPOPPTR; |
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462 | ptr = &GvSV(gv); |
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463 | goto restore_sv; |
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464 | case SAVEt_SVREF: /* scalar reference */ |
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465 | value = (SV*)SSPOPPTR; |
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466 | ptr = SSPOPPTR; |
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467 | restore_sv: |
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468 | sv = *(SV**)ptr; |
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469 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv) && |
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470 | SvTYPE(sv) != SVt_PVGV) |
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471 | { |
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472 | (void)SvUPGRADE(value, SvTYPE(sv)); |
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473 | SvMAGIC(value) = SvMAGIC(sv); |
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474 | SvFLAGS(value) |= SvMAGICAL(sv); |
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475 | SvMAGICAL_off(sv); |
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476 | SvMAGIC(sv) = 0; |
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477 | } |
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478 | else if (SvTYPE(value) >= SVt_PVMG && SvMAGIC(value) && |
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479 | SvTYPE(value) != SVt_PVGV) |
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480 | { |
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481 | SvFLAGS(value) |= (SvFLAGS(value) & |
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482 | (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
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483 | SvMAGICAL_off(value); |
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484 | SvMAGIC(value) = 0; |
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485 | } |
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486 | SvREFCNT_dec(sv); |
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487 | *(SV**)ptr = value; |
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488 | localizing = 2; |
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489 | SvSETMAGIC(value); |
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490 | localizing = 0; |
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491 | break; |
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492 | case SAVEt_AV: /* array reference */ |
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493 | av = (AV*)SSPOPPTR; |
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494 | gv = (GV*)SSPOPPTR; |
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495 | if (GvAV(gv)) { |
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496 | AV *goner = GvAV(gv); |
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497 | SvMAGIC(av) = SvMAGIC(goner); |
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498 | SvFLAGS(av) |= SvMAGICAL(goner); |
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499 | SvMAGICAL_off(goner); |
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500 | SvMAGIC(goner) = 0; |
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501 | SvREFCNT_dec(goner); |
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502 | } |
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503 | GvAV(gv) = av; |
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504 | if (SvMAGICAL(av)) { |
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505 | localizing = 2; |
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506 | SvSETMAGIC((SV*)av); |
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507 | localizing = 0; |
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508 | } |
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509 | break; |
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510 | case SAVEt_HV: /* hash reference */ |
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511 | hv = (HV*)SSPOPPTR; |
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512 | gv = (GV*)SSPOPPTR; |
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513 | if (GvHV(gv)) { |
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514 | HV *goner = GvHV(gv); |
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515 | SvMAGIC(hv) = SvMAGIC(goner); |
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516 | SvFLAGS(hv) |= SvMAGICAL(goner); |
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517 | SvMAGICAL_off(goner); |
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518 | SvMAGIC(goner) = 0; |
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519 | SvREFCNT_dec(goner); |
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520 | } |
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521 | GvHV(gv) = hv; |
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522 | if (SvMAGICAL(hv)) { |
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523 | localizing = 2; |
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524 | SvSETMAGIC((SV*)hv); |
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525 | localizing = 0; |
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526 | } |
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527 | break; |
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528 | case SAVEt_INT: /* int reference */ |
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529 | ptr = SSPOPPTR; |
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530 | *(int*)ptr = (int)SSPOPINT; |
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531 | break; |
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532 | case SAVEt_LONG: /* long reference */ |
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533 | ptr = SSPOPPTR; |
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534 | *(long*)ptr = (long)SSPOPLONG; |
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535 | break; |
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536 | case SAVEt_I32: /* I32 reference */ |
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537 | ptr = SSPOPPTR; |
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538 | *(I32*)ptr = (I32)SSPOPINT; |
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539 | break; |
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540 | case SAVEt_I16: /* I16 reference */ |
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541 | ptr = SSPOPPTR; |
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542 | *(I16*)ptr = (I16)SSPOPINT; |
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543 | break; |
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544 | case SAVEt_IV: /* IV reference */ |
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545 | ptr = SSPOPPTR; |
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546 | *(IV*)ptr = (IV)SSPOPIV; |
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547 | break; |
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548 | case SAVEt_SPTR: /* SV* reference */ |
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549 | ptr = SSPOPPTR; |
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550 | *(SV**)ptr = (SV*)SSPOPPTR; |
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551 | break; |
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552 | case SAVEt_PPTR: /* char* reference */ |
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553 | ptr = SSPOPPTR; |
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554 | *(char**)ptr = (char*)SSPOPPTR; |
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555 | break; |
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556 | case SAVEt_HPTR: /* HV* reference */ |
---|
557 | ptr = SSPOPPTR; |
---|
558 | *(HV**)ptr = (HV*)SSPOPPTR; |
---|
559 | break; |
---|
560 | case SAVEt_APTR: /* AV* reference */ |
---|
561 | ptr = SSPOPPTR; |
---|
562 | *(AV**)ptr = (AV*)SSPOPPTR; |
---|
563 | break; |
---|
564 | case SAVEt_NSTAB: |
---|
565 | gv = (GV*)SSPOPPTR; |
---|
566 | (void)sv_clear((SV*)gv); |
---|
567 | break; |
---|
568 | case SAVEt_GP: /* scalar reference */ |
---|
569 | ptr = SSPOPPTR; |
---|
570 | gv = (GV*)SSPOPPTR; |
---|
571 | gp_free(gv); |
---|
572 | GvGP(gv) = (GP*)ptr; |
---|
573 | if (SvPOK(gv) && SvLEN(gv) > 0) { |
---|
574 | Safefree(SvPVX(gv)); |
---|
575 | } |
---|
576 | SvPVX(gv) = (char *)SSPOPPTR; |
---|
577 | SvCUR(gv) = (STRLEN)SSPOPIV; |
---|
578 | SvLEN(gv) = (STRLEN)SSPOPIV; |
---|
579 | SvREFCNT_dec(gv); |
---|
580 | break; |
---|
581 | case SAVEt_FREESV: |
---|
582 | ptr = SSPOPPTR; |
---|
583 | SvREFCNT_dec((SV*)ptr); |
---|
584 | break; |
---|
585 | case SAVEt_FREEOP: |
---|
586 | ptr = SSPOPPTR; |
---|
587 | if (comppad) |
---|
588 | curpad = AvARRAY(comppad); |
---|
589 | op_free((OP*)ptr); |
---|
590 | break; |
---|
591 | case SAVEt_FREEPV: |
---|
592 | ptr = SSPOPPTR; |
---|
593 | Safefree((char*)ptr); |
---|
594 | break; |
---|
595 | case SAVEt_CLEARSV: |
---|
596 | ptr = (void*)&curpad[SSPOPLONG]; |
---|
597 | sv = *(SV**)ptr; |
---|
598 | /* Can clear pad variable in place? */ |
---|
599 | if (SvREFCNT(sv) <= 1 && !SvOBJECT(sv)) { |
---|
600 | if (SvTHINKFIRST(sv)) { |
---|
601 | if (SvREADONLY(sv)) |
---|
602 | croak("panic: leave_scope clearsv"); |
---|
603 | if (SvROK(sv)) |
---|
604 | sv_unref(sv); |
---|
605 | } |
---|
606 | if (SvMAGICAL(sv)) |
---|
607 | mg_free(sv); |
---|
608 | |
---|
609 | switch (SvTYPE(sv)) { |
---|
610 | case SVt_NULL: |
---|
611 | break; |
---|
612 | case SVt_PVAV: |
---|
613 | av_clear((AV*)sv); |
---|
614 | break; |
---|
615 | case SVt_PVHV: |
---|
616 | hv_clear((HV*)sv); |
---|
617 | break; |
---|
618 | case SVt_PVCV: |
---|
619 | croak("panic: leave_scope pad code"); |
---|
620 | case SVt_RV: |
---|
621 | case SVt_IV: |
---|
622 | case SVt_NV: |
---|
623 | (void)SvOK_off(sv); |
---|
624 | break; |
---|
625 | default: |
---|
626 | (void)SvOK_off(sv); |
---|
627 | (void)SvOOK_off(sv); |
---|
628 | break; |
---|
629 | } |
---|
630 | } |
---|
631 | else { /* Someone has a claim on this, so abandon it. */ |
---|
632 | U32 padflags = SvFLAGS(sv) & (SVs_PADBUSY|SVs_PADMY|SVs_PADTMP); |
---|
633 | SvREFCNT_dec(sv); /* Cast current value to the winds. */ |
---|
634 | switch (SvTYPE(sv)) { /* Console ourselves with a new value */ |
---|
635 | case SVt_PVAV: *(SV**)ptr = (SV*)newAV(); break; |
---|
636 | case SVt_PVHV: *(SV**)ptr = (SV*)newHV(); break; |
---|
637 | default: *(SV**)ptr = NEWSV(0,0); break; |
---|
638 | } |
---|
639 | SvFLAGS(*(SV**)ptr) |= padflags; /* preserve pad nature */ |
---|
640 | } |
---|
641 | break; |
---|
642 | case SAVEt_DELETE: |
---|
643 | ptr = SSPOPPTR; |
---|
644 | hv = (HV*)ptr; |
---|
645 | ptr = SSPOPPTR; |
---|
646 | (void)hv_delete(hv, (char*)ptr, (U32)SSPOPINT, G_DISCARD); |
---|
647 | Safefree(ptr); |
---|
648 | break; |
---|
649 | case SAVEt_DESTRUCTOR: |
---|
650 | ptr = SSPOPPTR; |
---|
651 | (*SSPOPDPTR)(ptr); |
---|
652 | break; |
---|
653 | case SAVEt_REGCONTEXT: |
---|
654 | { |
---|
655 | I32 delta = SSPOPINT; |
---|
656 | savestack_ix -= delta; /* regexp must have croaked */ |
---|
657 | } |
---|
658 | break; |
---|
659 | case SAVEt_STACK_POS: /* Position on Perl stack */ |
---|
660 | { |
---|
661 | I32 delta = SSPOPINT; |
---|
662 | stack_sp = stack_base + delta; |
---|
663 | } |
---|
664 | break; |
---|
665 | default: |
---|
666 | croak("panic: leave_scope inconsistency"); |
---|
667 | } |
---|
668 | } |
---|
669 | } |
---|
670 | |
---|
671 | #ifdef DEBUGGING |
---|
672 | |
---|
673 | void |
---|
674 | cx_dump(cx) |
---|
675 | CONTEXT* cx; |
---|
676 | { |
---|
677 | PerlIO_printf(Perl_debug_log, "CX %ld = %s\n", (long)(cx - cxstack), block_type[cx->cx_type]); |
---|
678 | if (cx->cx_type != CXt_SUBST) { |
---|
679 | PerlIO_printf(Perl_debug_log, "BLK_OLDSP = %ld\n", (long)cx->blk_oldsp); |
---|
680 | PerlIO_printf(Perl_debug_log, "BLK_OLDCOP = 0x%lx\n", (long)cx->blk_oldcop); |
---|
681 | PerlIO_printf(Perl_debug_log, "BLK_OLDMARKSP = %ld\n", (long)cx->blk_oldmarksp); |
---|
682 | PerlIO_printf(Perl_debug_log, "BLK_OLDSCOPESP = %ld\n", (long)cx->blk_oldscopesp); |
---|
683 | PerlIO_printf(Perl_debug_log, "BLK_OLDRETSP = %ld\n", (long)cx->blk_oldretsp); |
---|
684 | PerlIO_printf(Perl_debug_log, "BLK_OLDPM = 0x%lx\n", (long)cx->blk_oldpm); |
---|
685 | PerlIO_printf(Perl_debug_log, "BLK_GIMME = %s\n", cx->blk_gimme ? "LIST" : "SCALAR"); |
---|
686 | } |
---|
687 | switch (cx->cx_type) { |
---|
688 | case CXt_NULL: |
---|
689 | case CXt_BLOCK: |
---|
690 | break; |
---|
691 | case CXt_SUB: |
---|
692 | PerlIO_printf(Perl_debug_log, "BLK_SUB.CV = 0x%lx\n", |
---|
693 | (long)cx->blk_sub.cv); |
---|
694 | PerlIO_printf(Perl_debug_log, "BLK_SUB.GV = 0x%lx\n", |
---|
695 | (long)cx->blk_sub.gv); |
---|
696 | PerlIO_printf(Perl_debug_log, "BLK_SUB.DFOUTGV = 0x%lx\n", |
---|
697 | (long)cx->blk_sub.dfoutgv); |
---|
698 | PerlIO_printf(Perl_debug_log, "BLK_SUB.OLDDEPTH = %ld\n", |
---|
699 | (long)cx->blk_sub.olddepth); |
---|
700 | PerlIO_printf(Perl_debug_log, "BLK_SUB.HASARGS = %d\n", |
---|
701 | (int)cx->blk_sub.hasargs); |
---|
702 | break; |
---|
703 | case CXt_EVAL: |
---|
704 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_IN_EVAL = %ld\n", |
---|
705 | (long)cx->blk_eval.old_in_eval); |
---|
706 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_OP_TYPE = %s (%s)\n", |
---|
707 | op_name[cx->blk_eval.old_op_type], |
---|
708 | op_desc[cx->blk_eval.old_op_type]); |
---|
709 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_NAME = %s\n", |
---|
710 | cx->blk_eval.old_name); |
---|
711 | PerlIO_printf(Perl_debug_log, "BLK_EVAL.OLD_EVAL_ROOT = 0x%lx\n", |
---|
712 | (long)cx->blk_eval.old_eval_root); |
---|
713 | break; |
---|
714 | |
---|
715 | case CXt_LOOP: |
---|
716 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LABEL = %s\n", |
---|
717 | cx->blk_loop.label); |
---|
718 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.RESETSP = %ld\n", |
---|
719 | (long)cx->blk_loop.resetsp); |
---|
720 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.REDO_OP = 0x%lx\n", |
---|
721 | (long)cx->blk_loop.redo_op); |
---|
722 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.NEXT_OP = 0x%lx\n", |
---|
723 | (long)cx->blk_loop.next_op); |
---|
724 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.LAST_OP = 0x%lx\n", |
---|
725 | (long)cx->blk_loop.last_op); |
---|
726 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERIX = %ld\n", |
---|
727 | (long)cx->blk_loop.iterix); |
---|
728 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERARY = 0x%lx\n", |
---|
729 | (long)cx->blk_loop.iterary); |
---|
730 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERVAR = 0x%lx\n", |
---|
731 | (long)cx->blk_loop.itervar); |
---|
732 | if (cx->blk_loop.itervar) |
---|
733 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERSAVE = 0x%lx\n", |
---|
734 | (long)cx->blk_loop.itersave); |
---|
735 | PerlIO_printf(Perl_debug_log, "BLK_LOOP.ITERLVAL = 0x%lx\n", |
---|
736 | (long)cx->blk_loop.iterlval); |
---|
737 | break; |
---|
738 | |
---|
739 | case CXt_SUBST: |
---|
740 | PerlIO_printf(Perl_debug_log, "SB_ITERS = %ld\n", |
---|
741 | (long)cx->sb_iters); |
---|
742 | PerlIO_printf(Perl_debug_log, "SB_MAXITERS = %ld\n", |
---|
743 | (long)cx->sb_maxiters); |
---|
744 | PerlIO_printf(Perl_debug_log, "SB_SAFEBASE = %ld\n", |
---|
745 | (long)cx->sb_safebase); |
---|
746 | PerlIO_printf(Perl_debug_log, "SB_ONCE = %ld\n", |
---|
747 | (long)cx->sb_once); |
---|
748 | PerlIO_printf(Perl_debug_log, "SB_ORIG = %s\n", |
---|
749 | cx->sb_orig); |
---|
750 | PerlIO_printf(Perl_debug_log, "SB_DSTR = 0x%lx\n", |
---|
751 | (long)cx->sb_dstr); |
---|
752 | PerlIO_printf(Perl_debug_log, "SB_TARG = 0x%lx\n", |
---|
753 | (long)cx->sb_targ); |
---|
754 | PerlIO_printf(Perl_debug_log, "SB_S = 0x%lx\n", |
---|
755 | (long)cx->sb_s); |
---|
756 | PerlIO_printf(Perl_debug_log, "SB_M = 0x%lx\n", |
---|
757 | (long)cx->sb_m); |
---|
758 | PerlIO_printf(Perl_debug_log, "SB_STREND = 0x%lx\n", |
---|
759 | (long)cx->sb_strend); |
---|
760 | PerlIO_printf(Perl_debug_log, "SB_RXRES = 0x%lx\n", |
---|
761 | (long)cx->sb_rxres); |
---|
762 | break; |
---|
763 | } |
---|
764 | } |
---|
765 | #endif |
---|