1 | /* pp.h
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2 | *
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3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999,
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4 | * 2000, 2001, 2002, 2003, 2004, 2005 by Larry Wall and others
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5 | *
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6 | * You may distribute under the terms of either the GNU General Public
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7 | * License or the Artistic License, as specified in the README file.
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8 | *
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9 | */
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10 |
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11 | #ifdef USE_5005THREADS
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12 | #define ARGS thr
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13 | #define dARGS struct perl_thread *thr;
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14 | #else
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15 | #define ARGS
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16 | #define dARGS
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17 | #endif /* USE_5005THREADS */
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18 |
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19 | #define PP(s) OP * Perl_##s(pTHX)
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20 |
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21 | /*
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22 | =head1 Stack Manipulation Macros
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23 |
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24 | =for apidoc AmU||SP
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25 | Stack pointer. This is usually handled by C<xsubpp>. See C<dSP> and
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26 | C<SPAGAIN>.
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27 |
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28 | =for apidoc AmU||MARK
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29 | Stack marker variable for the XSUB. See C<dMARK>.
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30 |
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31 | =for apidoc Am|void|PUSHMARK|SP
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32 | Opening bracket for arguments on a callback. See C<PUTBACK> and
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33 | L<perlcall>.
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34 |
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35 | =for apidoc Ams||dSP
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36 | Declares a local copy of perl's stack pointer for the XSUB, available via
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37 | the C<SP> macro. See C<SP>.
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38 |
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39 | =for apidoc ms||djSP
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40 |
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41 | Declare Just C<SP>. This is actually identical to C<dSP>, and declares
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42 | a local copy of perl's stack pointer, available via the C<SP> macro.
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43 | See C<SP>. (Available for backward source code compatibility with the
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44 | old (Perl 5.005) thread model.)
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45 |
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46 | =for apidoc Ams||dMARK
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47 | Declare a stack marker variable, C<mark>, for the XSUB. See C<MARK> and
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48 | C<dORIGMARK>.
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49 |
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50 | =for apidoc Ams||dORIGMARK
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51 | Saves the original stack mark for the XSUB. See C<ORIGMARK>.
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52 |
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53 | =for apidoc AmU||ORIGMARK
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54 | The original stack mark for the XSUB. See C<dORIGMARK>.
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55 |
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56 | =for apidoc Ams||SPAGAIN
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57 | Refetch the stack pointer. Used after a callback. See L<perlcall>.
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58 |
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59 | =cut */
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60 |
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61 | #undef SP /* Solaris 2.7 i386 has this in /usr/include/sys/reg.h */
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62 | #define SP sp
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63 | #define MARK mark
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64 | #define TARG targ
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65 |
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66 | #define PUSHMARK(p) \
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67 | STMT_START { \
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68 | if (++PL_markstack_ptr == PL_markstack_max) \
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69 | markstack_grow(); \
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70 | *PL_markstack_ptr = (p) - PL_stack_base; \
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71 | } STMT_END
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72 |
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73 | #define TOPMARK (*PL_markstack_ptr)
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74 | #define POPMARK (*PL_markstack_ptr--)
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75 |
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76 | #define dSP register SV **sp = PL_stack_sp
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77 | #define djSP dSP
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78 | #define dMARK register SV **mark = PL_stack_base + POPMARK
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79 | #define dORIGMARK const I32 origmark = mark - PL_stack_base
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80 | #define ORIGMARK (PL_stack_base + origmark)
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81 |
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82 | #define SPAGAIN sp = PL_stack_sp
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83 | #define MSPAGAIN STMT_START { sp = PL_stack_sp; mark = ORIGMARK; } STMT_END
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84 |
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85 | #define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ))
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86 | #define dTARGETSTACKED SV * GETTARGETSTACKED
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87 |
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88 | #define GETTARGET targ = PAD_SV(PL_op->op_targ)
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89 | #define dTARGET SV * GETTARGET
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90 |
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91 | #define GETATARGET targ = (PL_op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(PL_op->op_targ))
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92 | #define dATARGET SV * GETATARGET
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93 |
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94 | #define dTARG SV *targ
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95 |
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96 | #define NORMAL PL_op->op_next
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97 | #define DIE return Perl_die
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98 | #ifndef PERL_CORE
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99 | # define DIE_NULL return DieNull
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100 | #endif
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101 |
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102 | /*
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103 | =for apidoc Ams||PUTBACK
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104 | Closing bracket for XSUB arguments. This is usually handled by C<xsubpp>.
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105 | See C<PUSHMARK> and L<perlcall> for other uses.
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106 |
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107 | =for apidoc Amn|SV*|POPs
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108 | Pops an SV off the stack.
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109 |
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110 | =for apidoc Amn|char*|POPp
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111 | Pops a string off the stack. Deprecated. New code should use POPpx.
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112 |
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113 | =for apidoc Amn|char*|POPpx
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114 | Pops a string off the stack.
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115 |
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116 | =for apidoc Amn|char*|POPpbytex
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117 | Pops a string off the stack which must consist of bytes i.e. characters < 256.
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118 |
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119 | =for apidoc Amn|NV|POPn
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120 | Pops a double off the stack.
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121 |
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122 | =for apidoc Amn|IV|POPi
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123 | Pops an integer off the stack.
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124 |
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125 | =for apidoc Amn|long|POPl
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126 | Pops a long off the stack.
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127 |
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128 | =cut
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129 | */
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130 |
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131 | #define PUTBACK PL_stack_sp = sp
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132 | #define RETURN return PUTBACK, NORMAL
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133 | #define RETURNOP(o) return PUTBACK, o
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134 | #define RETURNX(x) return x, PUTBACK, NORMAL
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135 |
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136 | #define POPs (*sp--)
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137 | #define POPp (SvPVx(POPs, PL_na)) /* deprecated */
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138 | #define POPpx (SvPVx_nolen(POPs))
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139 | #define POPpconstx (SvPVx_nolen_const(POPs))
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140 | #define POPpbytex (SvPVbytex_nolen(POPs))
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141 | #define POPn (SvNVx(POPs))
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142 | #define POPi ((IV)SvIVx(POPs))
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143 | #define POPu ((UV)SvUVx(POPs))
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144 | #define POPl ((long)SvIVx(POPs))
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145 | #define POPul ((unsigned long)SvIVx(POPs))
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146 | #ifdef HAS_QUAD
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147 | #define POPq ((Quad_t)SvIVx(POPs))
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148 | #define POPuq ((Uquad_t)SvUVx(POPs))
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149 | #endif
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150 |
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151 | #define TOPs (*sp)
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152 | #define TOPm1s (*(sp-1))
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153 | #define TOPp1s (*(sp+1))
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154 | #define TOPp (SvPV(TOPs, PL_na)) /* deprecated */
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155 | #define TOPpx (SvPV_nolen(TOPs))
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156 | #define TOPn (SvNV(TOPs))
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157 | #define TOPi ((IV)SvIV(TOPs))
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158 | #define TOPu ((UV)SvUV(TOPs))
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159 | #define TOPl ((long)SvIV(TOPs))
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160 | #define TOPul ((unsigned long)SvUV(TOPs))
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161 | #ifdef HAS_QUAD
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162 | #define TOPq ((Quad_t)SvIV(TOPs))
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163 | #define TOPuq ((Uquad_t)SvUV(TOPs))
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164 | #endif
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165 |
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166 | /* Go to some pains in the rare event that we must extend the stack. */
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167 |
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168 | /*
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169 | =for apidoc Am|void|EXTEND|SP|int nitems
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170 | Used to extend the argument stack for an XSUB's return values. Once
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171 | used, guarantees that there is room for at least C<nitems> to be pushed
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172 | onto the stack.
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173 |
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174 | =for apidoc Am|void|PUSHs|SV* sv
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175 | Push an SV onto the stack. The stack must have room for this element.
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176 | Does not handle 'set' magic. Does not use C<TARG>. See also C<PUSHmortal>,
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177 | C<XPUSHs> and C<XPUSHmortal>.
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178 |
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179 | =for apidoc Am|void|PUSHp|char* str|STRLEN len
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180 | Push a string onto the stack. The stack must have room for this element.
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181 | The C<len> indicates the length of the string. Handles 'set' magic. Uses
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182 | C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to declare it. Do not
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183 | call multiple C<TARG>-oriented macros to return lists from XSUB's - see
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184 | C<mPUSHp> instead. See also C<XPUSHp> and C<mXPUSHp>.
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185 |
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186 | =for apidoc Am|void|PUSHn|NV nv
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187 | Push a double onto the stack. The stack must have room for this element.
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188 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
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189 | called to declare it. Do not call multiple C<TARG>-oriented macros to
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190 | return lists from XSUB's - see C<mPUSHn> instead. See also C<XPUSHn> and
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191 | C<mXPUSHn>.
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192 |
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193 | =for apidoc Am|void|PUSHi|IV iv
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194 | Push an integer onto the stack. The stack must have room for this element.
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195 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
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196 | called to declare it. Do not call multiple C<TARG>-oriented macros to
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197 | return lists from XSUB's - see C<mPUSHi> instead. See also C<XPUSHi> and
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198 | C<mXPUSHi>.
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199 |
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200 | =for apidoc Am|void|PUSHu|UV uv
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201 | Push an unsigned integer onto the stack. The stack must have room for this
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202 | element. Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG>
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203 | should be called to declare it. Do not call multiple C<TARG>-oriented
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204 | macros to return lists from XSUB's - see C<mPUSHu> instead. See also
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205 | C<XPUSHu> and C<mXPUSHu>.
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206 |
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207 | =for apidoc Am|void|XPUSHs|SV* sv
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208 | Push an SV onto the stack, extending the stack if necessary. Does not
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209 | handle 'set' magic. Does not use C<TARG>. See also C<XPUSHmortal>,
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210 | C<PUSHs> and C<PUSHmortal>.
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211 |
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212 | =for apidoc Am|void|XPUSHp|char* str|STRLEN len
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213 | Push a string onto the stack, extending the stack if necessary. The C<len>
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214 | indicates the length of the string. Handles 'set' magic. Uses C<TARG>, so
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215 | C<dTARGET> or C<dXSTARG> should be called to declare it. Do not call
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216 | multiple C<TARG>-oriented macros to return lists from XSUB's - see
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217 | C<mXPUSHp> instead. See also C<PUSHp> and C<mPUSHp>.
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218 |
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219 | =for apidoc Am|void|XPUSHn|NV nv
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220 | Push a double onto the stack, extending the stack if necessary. Handles
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221 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to
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222 | declare it. Do not call multiple C<TARG>-oriented macros to return lists
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223 | from XSUB's - see C<mXPUSHn> instead. See also C<PUSHn> and C<mPUSHn>.
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224 |
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225 | =for apidoc Am|void|XPUSHi|IV iv
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226 | Push an integer onto the stack, extending the stack if necessary. Handles
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227 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to
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228 | declare it. Do not call multiple C<TARG>-oriented macros to return lists
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229 | from XSUB's - see C<mXPUSHi> instead. See also C<PUSHi> and C<mPUSHi>.
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230 |
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231 | =for apidoc Am|void|XPUSHu|UV uv
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232 | Push an unsigned integer onto the stack, extending the stack if necessary.
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233 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be
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234 | called to declare it. Do not call multiple C<TARG>-oriented macros to
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235 | return lists from XSUB's - see C<mXPUSHu> instead. See also C<PUSHu> and
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236 | C<mPUSHu>.
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237 |
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238 | =for apidoc Am|void|PUSHmortal
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239 | Push a new mortal SV onto the stack. The stack must have room for this
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240 | element. Does not handle 'set' magic. Does not use C<TARG>. See also
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241 | C<PUSHs>, C<XPUSHmortal> and C<XPUSHs>.
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242 |
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243 | =for apidoc Am|void|mPUSHp|char* str|STRLEN len
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244 | Push a string onto the stack. The stack must have room for this element.
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245 | The C<len> indicates the length of the string. Handles 'set' magic. Does
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246 | not use C<TARG>. See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>.
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247 |
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248 | =for apidoc Am|void|mPUSHn|NV nv
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249 | Push a double onto the stack. The stack must have room for this element.
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250 | Handles 'set' magic. Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn>
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251 | and C<XPUSHn>.
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252 |
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253 | =for apidoc Am|void|mPUSHi|IV iv
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254 | Push an integer onto the stack. The stack must have room for this element.
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255 | Handles 'set' magic. Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi>
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256 | and C<XPUSHi>.
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257 |
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258 | =for apidoc Am|void|mPUSHu|UV uv
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259 | Push an unsigned integer onto the stack. The stack must have room for this
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260 | element. Handles 'set' magic. Does not use C<TARG>. See also C<PUSHu>,
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261 | C<mXPUSHu> and C<XPUSHu>.
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262 |
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263 | =for apidoc Am|void|XPUSHmortal
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264 | Push a new mortal SV onto the stack, extending the stack if necessary. Does
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265 | not handle 'set' magic. Does not use C<TARG>. See also C<XPUSHs>,
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266 | C<PUSHmortal> and C<PUSHs>.
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267 |
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268 | =for apidoc Am|void|mXPUSHp|char* str|STRLEN len
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269 | Push a string onto the stack, extending the stack if necessary. The C<len>
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270 | indicates the length of the string. Handles 'set' magic. Does not use
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271 | C<TARG>. See also C<XPUSHp>, C<mPUSHp> and C<PUSHp>.
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272 |
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273 | =for apidoc Am|void|mXPUSHn|NV nv
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274 | Push a double onto the stack, extending the stack if necessary. Handles
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275 | 'set' magic. Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and
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276 | C<PUSHn>.
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277 |
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278 | =for apidoc Am|void|mXPUSHi|IV iv
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279 | Push an integer onto the stack, extending the stack if necessary. Handles
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280 | 'set' magic. Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and
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281 | C<PUSHi>.
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282 |
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283 | =for apidoc Am|void|mXPUSHu|UV uv
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284 | Push an unsigned integer onto the stack, extending the stack if necessary.
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285 | Handles 'set' magic. Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu>
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286 | and C<PUSHu>.
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287 |
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288 | =cut
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289 | */
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290 |
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291 | #define EXTEND(p,n) STMT_START { if (PL_stack_max - p < (int)(n)) { \
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292 | sp = stack_grow(sp,p, (int) (n)); \
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293 | } } STMT_END
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294 |
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295 | /* Same thing, but update mark register too. */
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296 | #define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (int)(n)) { \
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297 | const int markoff = mark - PL_stack_base; \
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298 | sp = stack_grow(sp,p,(int) (n)); \
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299 | mark = PL_stack_base + markoff; \
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300 | } } STMT_END
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301 |
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302 | #define PUSHs(s) (*++sp = (s))
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303 | #define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END
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304 | #define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END
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305 | #define PUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END
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306 | #define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END
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307 | #define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END
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308 |
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309 | #define XPUSHs(s) STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END
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310 | #define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END
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311 | #define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END
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312 | #define XPUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END
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313 | #define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END
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314 | #define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END
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315 | #define XPUSHundef STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END
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316 |
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317 | #define PUSHmortal PUSHs(sv_newmortal())
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318 | #define mPUSHp(p,l) sv_setpvn_mg(PUSHmortal, (p), (l))
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319 | #define mPUSHn(n) sv_setnv_mg(PUSHmortal, (NV)(n))
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320 | #define mPUSHi(i) sv_setiv_mg(PUSHmortal, (IV)(i))
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321 | #define mPUSHu(u) sv_setuv_mg(PUSHmortal, (UV)(u))
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322 |
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323 | #define XPUSHmortal XPUSHs(sv_newmortal())
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324 | #define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); sv_setpvn_mg(PUSHmortal, (p), (l)); } STMT_END
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325 | #define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv_mg(PUSHmortal, (NV)(n)); } STMT_END
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326 | #define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv_mg(PUSHmortal, (IV)(i)); } STMT_END
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327 | #define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv_mg(PUSHmortal, (UV)(u)); } STMT_END
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328 |
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329 | #define SETs(s) (*sp = s)
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330 | #define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END
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331 | #define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END
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332 | #define SETn(n) STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END
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333 | #define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END
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334 | #define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END
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335 |
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336 | #define dTOPss SV *sv = TOPs
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337 | #define dPOPss SV *sv = POPs
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338 | #define dTOPnv NV value = TOPn
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339 | #define dPOPnv NV value = POPn
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340 | #define dTOPiv IV value = TOPi
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341 | #define dPOPiv IV value = POPi
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342 | #define dTOPuv UV value = TOPu
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343 | #define dPOPuv UV value = POPu
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344 | #ifdef HAS_QUAD
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345 | #define dTOPqv Quad_t value = TOPu
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346 | #define dPOPqv Quad_t value = POPu
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347 | #define dTOPuqv Uquad_t value = TOPuq
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348 | #define dPOPuqv Uquad_t value = POPuq
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349 | #endif
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350 |
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351 | #define dPOPXssrl(X) SV *right = POPs; SV *left = CAT2(X,s)
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352 | #define dPOPXnnrl(X) NV right = POPn; NV left = CAT2(X,n)
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353 | #define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i)
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354 |
|
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355 | #define USE_LEFT(sv) \
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356 | (SvOK(sv) || SvGMAGICAL(sv) || !(PL_op->op_flags & OPf_STACKED))
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357 | #define dPOPXnnrl_ul(X) \
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358 | NV right = POPn; \
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359 | SV *leftsv = CAT2(X,s); \
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360 | NV left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0
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361 | #define dPOPXiirl_ul(X) \
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362 | IV right = POPi; \
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363 | SV *leftsv = CAT2(X,s); \
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364 | IV left = USE_LEFT(leftsv) ? SvIV(leftsv) : 0
|
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365 |
|
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366 | #define dPOPPOPssrl dPOPXssrl(POP)
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367 | #define dPOPPOPnnrl dPOPXnnrl(POP)
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368 | #define dPOPPOPnnrl_ul dPOPXnnrl_ul(POP)
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369 | #define dPOPPOPiirl dPOPXiirl(POP)
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370 | #define dPOPPOPiirl_ul dPOPXiirl_ul(POP)
|
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371 |
|
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372 | #define dPOPTOPssrl dPOPXssrl(TOP)
|
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373 | #define dPOPTOPnnrl dPOPXnnrl(TOP)
|
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374 | #define dPOPTOPnnrl_ul dPOPXnnrl_ul(TOP)
|
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375 | #define dPOPTOPiirl dPOPXiirl(TOP)
|
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376 | #define dPOPTOPiirl_ul dPOPXiirl_ul(TOP)
|
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377 |
|
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378 | #define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes))
|
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379 | #define RETPUSHNO RETURNX(PUSHs(&PL_sv_no))
|
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380 | #define RETPUSHUNDEF RETURNX(PUSHs(&PL_sv_undef))
|
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381 |
|
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382 | #define RETSETYES RETURNX(SETs(&PL_sv_yes))
|
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383 | #define RETSETNO RETURNX(SETs(&PL_sv_no))
|
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384 | #define RETSETUNDEF RETURNX(SETs(&PL_sv_undef))
|
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385 |
|
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386 | #define ARGTARG PL_op->op_targ
|
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387 |
|
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388 | /* See OPpTARGET_MY: */
|
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389 | #define MAXARG (PL_op->op_private & 15)
|
---|
390 |
|
---|
391 | #define SWITCHSTACK(f,t) \
|
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392 | STMT_START { \
|
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393 | AvFILLp(f) = sp - PL_stack_base; \
|
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394 | PL_stack_base = AvARRAY(t); \
|
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395 | PL_stack_max = PL_stack_base + AvMAX(t); \
|
---|
396 | sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \
|
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397 | PL_curstack = t; \
|
---|
398 | } STMT_END
|
---|
399 |
|
---|
400 | #define EXTEND_MORTAL(n) \
|
---|
401 | STMT_START { \
|
---|
402 | if (PL_tmps_ix + (n) >= PL_tmps_max) \
|
---|
403 | tmps_grow(n); \
|
---|
404 | } STMT_END
|
---|
405 |
|
---|
406 | #define AMGf_noright 1
|
---|
407 | #define AMGf_noleft 2
|
---|
408 | #define AMGf_assign 4
|
---|
409 | #define AMGf_unary 8
|
---|
410 |
|
---|
411 | #define tryAMAGICbinW(meth,assign,set) STMT_START { \
|
---|
412 | if (PL_amagic_generation) { \
|
---|
413 | SV* tmpsv; \
|
---|
414 | SV* const right= *(sp); SV* const left= *(sp-1);\
|
---|
415 | if ((SvAMAGIC(left)||SvAMAGIC(right))&&\
|
---|
416 | (tmpsv=amagic_call(left, \
|
---|
417 | right, \
|
---|
418 | CAT2(meth,_amg), \
|
---|
419 | (assign)? AMGf_assign: 0))) {\
|
---|
420 | SPAGAIN; \
|
---|
421 | (void)POPs; set(tmpsv); RETURN; } \
|
---|
422 | } \
|
---|
423 | } STMT_END
|
---|
424 |
|
---|
425 | #define tryAMAGICbin(meth,assign) tryAMAGICbinW(meth,assign,SETsv)
|
---|
426 | #define tryAMAGICbinSET(meth,assign) tryAMAGICbinW(meth,assign,SETs)
|
---|
427 |
|
---|
428 | #define AMG_CALLun(sv,meth) amagic_call(sv,&PL_sv_undef, \
|
---|
429 | CAT2(meth,_amg),AMGf_noright | AMGf_unary)
|
---|
430 | #define AMG_CALLbinL(left,right,meth) \
|
---|
431 | amagic_call(left,right,CAT2(meth,_amg),AMGf_noright)
|
---|
432 |
|
---|
433 | #define tryAMAGICunW(meth,set,shift,ret) STMT_START { \
|
---|
434 | if (PL_amagic_generation) { \
|
---|
435 | SV* tmpsv; \
|
---|
436 | SV* arg= sp[shift]; \
|
---|
437 | if(0) goto am_again; /* shut up unused warning */ \
|
---|
438 | am_again: \
|
---|
439 | if ((SvAMAGIC(arg))&&\
|
---|
440 | (tmpsv=AMG_CALLun(arg,meth))) {\
|
---|
441 | SPAGAIN; if (shift) sp += shift; \
|
---|
442 | set(tmpsv); ret; } \
|
---|
443 | } \
|
---|
444 | } STMT_END
|
---|
445 |
|
---|
446 | #define FORCE_SETs(sv) STMT_START { sv_setsv(TARG, (sv)); SETTARG; } STMT_END
|
---|
447 |
|
---|
448 | #define tryAMAGICun(meth) tryAMAGICunW(meth,SETsvUN,0,RETURN)
|
---|
449 | #define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs,0,RETURN)
|
---|
450 | #define tryAMAGICunTARGET(meth, shift) \
|
---|
451 | STMT_START { dSP; sp--; /* get TARGET from below PL_stack_sp */ \
|
---|
452 | { dTARGETSTACKED; \
|
---|
453 | { dSP; tryAMAGICunW(meth,FORCE_SETs,shift,RETURN);}}} STMT_END
|
---|
454 |
|
---|
455 | #define setAGAIN(ref) \
|
---|
456 | STMT_START { \
|
---|
457 | sv = ref; \
|
---|
458 | if (!SvROK(ref)) \
|
---|
459 | Perl_croak(aTHX_ "Overloaded dereference did not return a reference"); \
|
---|
460 | if (ref != arg && SvRV(ref) != SvRV(arg)) { \
|
---|
461 | arg = ref; \
|
---|
462 | goto am_again; \
|
---|
463 | } \
|
---|
464 | } STMT_END
|
---|
465 |
|
---|
466 | #define tryAMAGICunDEREF(meth) tryAMAGICunW(meth,setAGAIN,0,(void)0)
|
---|
467 |
|
---|
468 | #define opASSIGN (PL_op->op_flags & OPf_STACKED)
|
---|
469 | #define SETsv(sv) STMT_START { \
|
---|
470 | if (opASSIGN || (SvFLAGS(TARG) & SVs_PADMY)) \
|
---|
471 | { sv_setsv(TARG, (sv)); SETTARG; } \
|
---|
472 | else SETs(sv); } STMT_END
|
---|
473 |
|
---|
474 | #define SETsvUN(sv) STMT_START { \
|
---|
475 | if (SvFLAGS(TARG) & SVs_PADMY) \
|
---|
476 | { sv_setsv(TARG, (sv)); SETTARG; } \
|
---|
477 | else SETs(sv); } STMT_END
|
---|
478 |
|
---|
479 | /* newSVsv does not behave as advertised, so we copy missing
|
---|
480 | * information by hand */
|
---|
481 |
|
---|
482 | /* SV* ref causes confusion with the member variable
|
---|
483 | changed SV* ref to SV* tmpRef */
|
---|
484 | #define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv); \
|
---|
485 | if (SvREFCNT(tmpRef)>1) { \
|
---|
486 | SvRV_set(rv, AMG_CALLun(rv,copy)); \
|
---|
487 | SvREFCNT_dec(tmpRef); \
|
---|
488 | } } STMT_END
|
---|
489 |
|
---|
490 | /*
|
---|
491 | =for apidoc mU||LVRET
|
---|
492 | True if this op will be the return value of an lvalue subroutine
|
---|
493 |
|
---|
494 | =cut */
|
---|
495 | #define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub())
|
---|
496 |
|
---|
497 | /*
|
---|
498 | * Local variables:
|
---|
499 | * c-indentation-style: bsd
|
---|
500 | * c-basic-offset: 4
|
---|
501 | * indent-tabs-mode: t
|
---|
502 | * End:
|
---|
503 | *
|
---|
504 | * ex: set ts=8 sts=4 sw=4 noet:
|
---|
505 | */
|
---|