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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 |
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 | #define PP(s) OP * Perl_##s(pTHX) |
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12 | |
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13 | /* |
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14 | =head1 Stack Manipulation Macros |
15 | |
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16 | =for apidoc AmU||SP |
17 | Stack pointer. This is usually handled by C<xsubpp>. See C<dSP> and |
18 | C<SPAGAIN>. |
19 | |
20 | =for apidoc AmU||MARK |
21 | Stack marker variable for the XSUB. See C<dMARK>. |
22 | |
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23 | =for apidoc Am|void|PUSHMARK|SP |
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24 | Opening bracket for arguments on a callback. See C<PUTBACK> and |
25 | L<perlcall>. |
26 | |
27 | =for apidoc Ams||dSP |
28 | Declares a local copy of perl's stack pointer for the XSUB, available via |
29 | the C<SP> macro. See C<SP>. |
30 | |
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31 | =for apidoc ms||djSP |
32 | |
33 | Declare Just C<SP>. This is actually identical to C<dSP>, and declares |
34 | a local copy of perl's stack pointer, available via the C<SP> macro. |
35 | See C<SP>. (Available for backward source code compatibility with the |
36 | old (Perl 5.005) thread model.) |
37 | |
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38 | =for apidoc Ams||dMARK |
39 | Declare a stack marker variable, C<mark>, for the XSUB. See C<MARK> and |
40 | C<dORIGMARK>. |
41 | |
42 | =for apidoc Ams||dORIGMARK |
43 | Saves the original stack mark for the XSUB. See C<ORIGMARK>. |
44 | |
45 | =for apidoc AmU||ORIGMARK |
46 | The original stack mark for the XSUB. See C<dORIGMARK>. |
47 | |
48 | =for apidoc Ams||SPAGAIN |
49 | Refetch the stack pointer. Used after a callback. See L<perlcall>. |
50 | |
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51 | =cut */ |
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52 | |
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53 | #undef SP /* Solaris 2.7 i386 has this in /usr/include/sys/reg.h */ |
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54 | #define SP sp |
55 | #define MARK mark |
56 | #define TARG targ |
57 | |
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58 | #define PUSHMARK(p) \ |
59 | STMT_START { \ |
60 | if (++PL_markstack_ptr == PL_markstack_max) \ |
61 | markstack_grow(); \ |
62 | *PL_markstack_ptr = (p) - PL_stack_base; \ |
63 | } STMT_END |
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64 | |
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65 | #define TOPMARK (*PL_markstack_ptr) |
66 | #define POPMARK (*PL_markstack_ptr--) |
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67 | |
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68 | #define dSP register SV **sp = PL_stack_sp |
69 | #define djSP dSP |
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70 | #define dMARK register SV **mark = PL_stack_base + POPMARK |
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71 | #define dORIGMARK const I32 origmark = mark - PL_stack_base |
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72 | #define ORIGMARK (PL_stack_base + origmark) |
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73 | |
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74 | #define SPAGAIN sp = PL_stack_sp |
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75 | #define MSPAGAIN STMT_START { sp = PL_stack_sp; mark = ORIGMARK; } STMT_END |
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76 | |
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77 | #define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ)) |
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78 | #define dTARGETSTACKED SV * GETTARGETSTACKED |
79 | |
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80 | #define GETTARGET targ = PAD_SV(PL_op->op_targ) |
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81 | #define dTARGET SV * GETTARGET |
82 | |
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83 | #define GETATARGET targ = (PL_op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(PL_op->op_targ)) |
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84 | #define dATARGET SV * GETATARGET |
85 | |
86 | #define dTARG SV *targ |
87 | |
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88 | #define NORMAL PL_op->op_next |
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89 | #define DIE return Perl_die |
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90 | #define DIE_NULL return DieNull |
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91 | |
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92 | /* |
93 | =for apidoc Ams||PUTBACK |
94 | Closing bracket for XSUB arguments. This is usually handled by C<xsubpp>. |
95 | See C<PUSHMARK> and L<perlcall> for other uses. |
96 | |
97 | =for apidoc Amn|SV*|POPs |
98 | Pops an SV off the stack. |
99 | |
100 | =for apidoc Amn|char*|POPp |
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101 | Pops a string off the stack. Deprecated. New code should use POPpx. |
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102 | |
103 | =for apidoc Amn|char*|POPpx |
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104 | Pops a string off the stack. |
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105 | |
106 | =for apidoc Amn|char*|POPpbytex |
107 | Pops a string off the stack which must consist of bytes i.e. characters < 256. |
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108 | |
109 | =for apidoc Amn|NV|POPn |
110 | Pops a double off the stack. |
111 | |
112 | =for apidoc Amn|IV|POPi |
113 | Pops an integer off the stack. |
114 | |
115 | =for apidoc Amn|long|POPl |
116 | Pops a long off the stack. |
117 | |
118 | =cut |
119 | */ |
120 | |
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121 | #define PUTBACK PL_stack_sp = sp |
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122 | #define RETURN return PUTBACK, NORMAL |
123 | #define RETURNOP(o) return PUTBACK, o |
124 | #define RETURNX(x) return x, PUTBACK, NORMAL |
125 | |
126 | #define POPs (*sp--) |
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127 | #define POPp (SvPVx(POPs, PL_na)) /* deprecated */ |
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128 | #define POPpx (SvPVx_nolen(POPs)) |
129 | #define POPpconstx (SvPVx_nolen_const(POPs)) |
130 | #define POPpbytex (SvPVbytex_nolen(POPs)) |
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131 | #define POPn (SvNVx(POPs)) |
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132 | #define POPi ((IV)SvIVx(POPs)) |
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133 | #define POPu ((UV)SvUVx(POPs)) |
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134 | #define POPl ((long)SvIVx(POPs)) |
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135 | #define POPul ((unsigned long)SvIVx(POPs)) |
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136 | #ifdef HAS_QUAD |
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137 | #define POPq ((Quad_t)SvIVx(POPs)) |
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138 | #define POPuq ((Uquad_t)SvUVx(POPs)) |
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139 | #endif |
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140 | |
141 | #define TOPs (*sp) |
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142 | #define TOPm1s (*(sp-1)) |
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143 | #define TOPp1s (*(sp+1)) |
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144 | #define TOPp (SvPV(TOPs, PL_na)) /* deprecated */ |
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145 | #define TOPpx (SvPV_nolen(TOPs)) |
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146 | #define TOPn (SvNV(TOPs)) |
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147 | #define TOPi ((IV)SvIV(TOPs)) |
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148 | #define TOPu ((UV)SvUV(TOPs)) |
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149 | #define TOPl ((long)SvIV(TOPs)) |
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150 | #define TOPul ((unsigned long)SvUV(TOPs)) |
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151 | #ifdef HAS_QUAD |
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152 | #define TOPq ((Quad_t)SvIV(TOPs)) |
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153 | #define TOPuq ((Uquad_t)SvUV(TOPs)) |
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154 | #endif |
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155 | |
156 | /* Go to some pains in the rare event that we must extend the stack. */ |
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157 | |
158 | /* |
159 | =for apidoc Am|void|EXTEND|SP|int nitems |
160 | Used to extend the argument stack for an XSUB's return values. Once |
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161 | used, guarantees that there is room for at least C<nitems> to be pushed |
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162 | onto the stack. |
163 | |
164 | =for apidoc Am|void|PUSHs|SV* sv |
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165 | Push an SV onto the stack. The stack must have room for this element. |
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166 | Does not handle 'set' magic. Does not use C<TARG>. See also C<PUSHmortal>, |
167 | C<XPUSHs> and C<XPUSHmortal>. |
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168 | |
169 | =for apidoc Am|void|PUSHp|char* str|STRLEN len |
170 | Push a string onto the stack. The stack must have room for this element. |
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171 | The C<len> indicates the length of the string. Handles 'set' magic. Uses |
172 | C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to declare it. Do not |
173 | call multiple C<TARG>-oriented macros to return lists from XSUB's - see |
174 | C<mPUSHp> instead. See also C<XPUSHp> and C<mXPUSHp>. |
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175 | |
176 | =for apidoc Am|void|PUSHn|NV nv |
177 | Push a double onto the stack. The stack must have room for this element. |
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178 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
179 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
180 | return lists from XSUB's - see C<mPUSHn> instead. See also C<XPUSHn> and |
181 | C<mXPUSHn>. |
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182 | |
183 | =for apidoc Am|void|PUSHi|IV iv |
184 | Push an integer onto the stack. The stack must have room for this element. |
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185 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
186 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
187 | return lists from XSUB's - see C<mPUSHi> instead. See also C<XPUSHi> and |
188 | C<mXPUSHi>. |
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189 | |
190 | =for apidoc Am|void|PUSHu|UV uv |
191 | Push an unsigned integer onto the stack. The stack must have room for this |
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192 | element. Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> |
193 | should be called to declare it. Do not call multiple C<TARG>-oriented |
194 | macros to return lists from XSUB's - see C<mPUSHu> instead. See also |
195 | C<XPUSHu> and C<mXPUSHu>. |
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196 | |
197 | =for apidoc Am|void|XPUSHs|SV* sv |
198 | Push an SV onto the stack, extending the stack if necessary. Does not |
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199 | handle 'set' magic. Does not use C<TARG>. See also C<XPUSHmortal>, |
200 | C<PUSHs> and C<PUSHmortal>. |
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201 | |
202 | =for apidoc Am|void|XPUSHp|char* str|STRLEN len |
203 | Push a string onto the stack, extending the stack if necessary. The C<len> |
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204 | indicates the length of the string. Handles 'set' magic. Uses C<TARG>, so |
205 | C<dTARGET> or C<dXSTARG> should be called to declare it. Do not call |
206 | multiple C<TARG>-oriented macros to return lists from XSUB's - see |
207 | C<mXPUSHp> instead. See also C<PUSHp> and C<mPUSHp>. |
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208 | |
209 | =for apidoc Am|void|XPUSHn|NV nv |
210 | Push a double onto the stack, extending the stack if necessary. Handles |
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211 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to |
212 | declare it. Do not call multiple C<TARG>-oriented macros to return lists |
213 | from XSUB's - see C<mXPUSHn> instead. See also C<PUSHn> and C<mPUSHn>. |
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214 | |
215 | =for apidoc Am|void|XPUSHi|IV iv |
216 | Push an integer onto the stack, extending the stack if necessary. Handles |
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217 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to |
218 | declare it. Do not call multiple C<TARG>-oriented macros to return lists |
219 | from XSUB's - see C<mXPUSHi> instead. See also C<PUSHi> and C<mPUSHi>. |
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220 | |
221 | =for apidoc Am|void|XPUSHu|UV uv |
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222 | Push an unsigned integer onto the stack, extending the stack if necessary. |
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223 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
224 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
225 | return lists from XSUB's - see C<mXPUSHu> instead. See also C<PUSHu> and |
226 | C<mPUSHu>. |
227 | |
228 | =for apidoc Am|void|PUSHmortal |
229 | Push a new mortal SV onto the stack. The stack must have room for this |
230 | element. Does not handle 'set' magic. Does not use C<TARG>. See also |
231 | C<PUSHs>, C<XPUSHmortal> and C<XPUSHs>. |
232 | |
233 | =for apidoc Am|void|mPUSHp|char* str|STRLEN len |
234 | Push a string onto the stack. The stack must have room for this element. |
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235 | The C<len> indicates the length of the string. Handles 'set' magic. Does |
236 | not use C<TARG>. See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>. |
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237 | |
238 | =for apidoc Am|void|mPUSHn|NV nv |
239 | Push a double onto the stack. The stack must have room for this element. |
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240 | Handles 'set' magic. Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn> |
241 | and C<XPUSHn>. |
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242 | |
243 | =for apidoc Am|void|mPUSHi|IV iv |
244 | Push an integer onto the stack. The stack must have room for this element. |
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245 | Handles 'set' magic. Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi> |
246 | and C<XPUSHi>. |
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247 | |
248 | =for apidoc Am|void|mPUSHu|UV uv |
249 | Push an unsigned integer onto the stack. The stack must have room for this |
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250 | element. Handles 'set' magic. Does not use C<TARG>. See also C<PUSHu>, |
251 | C<mXPUSHu> and C<XPUSHu>. |
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252 | |
253 | =for apidoc Am|void|XPUSHmortal |
254 | Push a new mortal SV onto the stack, extending the stack if necessary. Does |
255 | not handle 'set' magic. Does not use C<TARG>. See also C<XPUSHs>, |
256 | C<PUSHmortal> and C<PUSHs>. |
257 | |
258 | =for apidoc Am|void|mXPUSHp|char* str|STRLEN len |
259 | Push a string onto the stack, extending the stack if necessary. The C<len> |
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260 | indicates the length of the string. Handles 'set' magic. Does not use |
261 | C<TARG>. See also C<XPUSHp>, C<mPUSHp> and C<PUSHp>. |
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262 | |
263 | =for apidoc Am|void|mXPUSHn|NV nv |
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264 | Push a double onto the stack, extending the stack if necessary. Handles |
265 | 'set' magic. Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and |
266 | C<PUSHn>. |
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267 | |
268 | =for apidoc Am|void|mXPUSHi|IV iv |
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269 | Push an integer onto the stack, extending the stack if necessary. Handles |
270 | 'set' magic. Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and |
271 | C<PUSHi>. |
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272 | |
273 | =for apidoc Am|void|mXPUSHu|UV uv |
274 | Push an unsigned integer onto the stack, extending the stack if necessary. |
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275 | Handles 'set' magic. Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu> |
276 | and C<PUSHu>. |
954c1994 |
277 | |
278 | =cut |
279 | */ |
280 | |
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281 | #define EXTEND(p,n) STMT_START { if (PL_stack_max - p < (int)(n)) { \ |
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282 | sp = stack_grow(sp,p, (int) (n)); \ |
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283 | } } STMT_END |
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284 | |
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285 | /* Same thing, but update mark register too. */ |
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286 | #define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (int)(n)) { \ |
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287 | int markoff = mark - PL_stack_base; \ |
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288 | sp = stack_grow(sp,p,(int) (n)); \ |
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289 | mark = PL_stack_base + markoff; \ |
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290 | } } STMT_END |
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291 | |
292 | #define PUSHs(s) (*++sp = (s)) |
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293 | #define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END |
294 | #define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END |
65202027 |
295 | #define PUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END |
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296 | #define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END |
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297 | #define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END |
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298 | |
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299 | #define XPUSHs(s) STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END |
300 | #define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END |
301 | #define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END |
65202027 |
302 | #define XPUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END |
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303 | #define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END |
55497cff |
304 | #define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END |
b162f9ea |
305 | #define XPUSHundef STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END |
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306 | |
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307 | #define PUSHmortal PUSHs(sv_newmortal()) |
308 | #define mPUSHp(p,l) sv_setpvn_mg(PUSHmortal, (p), (l)) |
309 | #define mPUSHn(n) sv_setnv_mg(PUSHmortal, (NV)(n)) |
310 | #define mPUSHi(i) sv_setiv_mg(PUSHmortal, (IV)(i)) |
311 | #define mPUSHu(u) sv_setuv_mg(PUSHmortal, (UV)(u)) |
312 | |
313 | #define XPUSHmortal XPUSHs(sv_newmortal()) |
314 | #define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); sv_setpvn_mg(PUSHmortal, (p), (l)); } STMT_END |
315 | #define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv_mg(PUSHmortal, (NV)(n)); } STMT_END |
316 | #define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv_mg(PUSHmortal, (IV)(i)); } STMT_END |
317 | #define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv_mg(PUSHmortal, (UV)(u)); } STMT_END |
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318 | |
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319 | #define SETs(s) (*sp = s) |
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320 | #define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END |
321 | #define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END |
65202027 |
322 | #define SETn(n) STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END |
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323 | #define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END |
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324 | #define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END |
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325 | |
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326 | #define dTOPss SV *sv = TOPs |
327 | #define dPOPss SV *sv = POPs |
65202027 |
328 | #define dTOPnv NV value = TOPn |
329 | #define dPOPnv NV value = POPn |
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330 | #define dTOPiv IV value = TOPi |
331 | #define dPOPiv IV value = POPi |
55497cff |
332 | #define dTOPuv UV value = TOPu |
333 | #define dPOPuv UV value = POPu |
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334 | #ifdef HAS_QUAD |
2d4389e4 |
335 | #define dTOPqv Quad_t value = TOPu |
336 | #define dPOPqv Quad_t value = POPu |
337 | #define dTOPuqv Uquad_t value = TOPuq |
338 | #define dPOPuqv Uquad_t value = POPuq |
339 | #endif |
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340 | |
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341 | #define dPOPXssrl(X) SV *right = POPs; SV *left = CAT2(X,s) |
65202027 |
342 | #define dPOPXnnrl(X) NV right = POPn; NV left = CAT2(X,n) |
7a4c00b4 |
343 | #define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i) |
344 | |
345 | #define USE_LEFT(sv) \ |
533c011a |
346 | (SvOK(sv) || SvGMAGICAL(sv) || !(PL_op->op_flags & OPf_STACKED)) |
7a4c00b4 |
347 | #define dPOPXnnrl_ul(X) \ |
65202027 |
348 | NV right = POPn; \ |
7a4c00b4 |
349 | SV *leftsv = CAT2(X,s); \ |
65202027 |
350 | NV left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0 |
7a4c00b4 |
351 | #define dPOPXiirl_ul(X) \ |
352 | IV right = POPi; \ |
353 | SV *leftsv = CAT2(X,s); \ |
354 | IV left = USE_LEFT(leftsv) ? SvIV(leftsv) : 0 |
355 | |
356 | #define dPOPPOPssrl dPOPXssrl(POP) |
357 | #define dPOPPOPnnrl dPOPXnnrl(POP) |
358 | #define dPOPPOPnnrl_ul dPOPXnnrl_ul(POP) |
359 | #define dPOPPOPiirl dPOPXiirl(POP) |
360 | #define dPOPPOPiirl_ul dPOPXiirl_ul(POP) |
361 | |
362 | #define dPOPTOPssrl dPOPXssrl(TOP) |
363 | #define dPOPTOPnnrl dPOPXnnrl(TOP) |
364 | #define dPOPTOPnnrl_ul dPOPXnnrl_ul(TOP) |
365 | #define dPOPTOPiirl dPOPXiirl(TOP) |
366 | #define dPOPTOPiirl_ul dPOPXiirl_ul(TOP) |
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367 | |
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368 | #define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes)) |
369 | #define RETPUSHNO RETURNX(PUSHs(&PL_sv_no)) |
370 | #define RETPUSHUNDEF RETURNX(PUSHs(&PL_sv_undef)) |
79072805 |
371 | |
3280af22 |
372 | #define RETSETYES RETURNX(SETs(&PL_sv_yes)) |
373 | #define RETSETNO RETURNX(SETs(&PL_sv_no)) |
374 | #define RETSETUNDEF RETURNX(SETs(&PL_sv_undef)) |
79072805 |
375 | |
533c011a |
376 | #define ARGTARG PL_op->op_targ |
b162f9ea |
377 | |
378 | /* See OPpTARGET_MY: */ |
379 | #define MAXARG (PL_op->op_private & 15) |
79072805 |
380 | |
e336de0d |
381 | #define SWITCHSTACK(f,t) \ |
382 | STMT_START { \ |
677b06e3 |
383 | AvFILLp(f) = sp - PL_stack_base; \ |
3280af22 |
384 | PL_stack_base = AvARRAY(t); \ |
677b06e3 |
385 | PL_stack_max = PL_stack_base + AvMAX(t); \ |
3280af22 |
386 | sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \ |
677b06e3 |
387 | PL_curstack = t; \ |
e336de0d |
388 | } STMT_END |
79072805 |
389 | |
bbce6d69 |
390 | #define EXTEND_MORTAL(n) \ |
677b06e3 |
391 | STMT_START { \ |
392 | if (PL_tmps_ix + (n) >= PL_tmps_max) \ |
393 | tmps_grow(n); \ |
394 | } STMT_END |
bbce6d69 |
395 | |
a0d0e21e |
396 | #define AMGf_noright 1 |
397 | #define AMGf_noleft 2 |
398 | #define AMGf_assign 4 |
399 | #define AMGf_unary 8 |
400 | |
86547924 |
401 | #define tryAMAGICbinW(meth,assign,set) STMT_START { \ |
3280af22 |
402 | if (PL_amagic_generation) { \ |
a0d0e21e |
403 | SV* tmpsv; \ |
404 | SV* right= *(sp); SV* left= *(sp-1);\ |
405 | if ((SvAMAGIC(left)||SvAMAGIC(right))&&\ |
406 | (tmpsv=amagic_call(left, \ |
407 | right, \ |
408 | CAT2(meth,_amg), \ |
409 | (assign)? AMGf_assign: 0))) {\ |
410 | SPAGAIN; \ |
411 | (void)POPs; set(tmpsv); RETURN; } \ |
412 | } \ |
86547924 |
413 | } STMT_END |
a0d0e21e |
414 | |
415 | #define tryAMAGICbin(meth,assign) tryAMAGICbinW(meth,assign,SETsv) |
416 | #define tryAMAGICbinSET(meth,assign) tryAMAGICbinW(meth,assign,SETs) |
417 | |
3280af22 |
418 | #define AMG_CALLun(sv,meth) amagic_call(sv,&PL_sv_undef, \ |
a0d0e21e |
419 | CAT2(meth,_amg),AMGf_noright | AMGf_unary) |
420 | #define AMG_CALLbinL(left,right,meth) \ |
421 | amagic_call(left,right,CAT2(meth,_amg),AMGf_noright) |
422 | |
e8c20960 |
423 | #define tryAMAGICunW(meth,set,shift,ret) STMT_START { \ |
3280af22 |
424 | if (PL_amagic_generation) { \ |
a0d0e21e |
425 | SV* tmpsv; \ |
f5284f61 |
426 | SV* arg= sp[shift]; \ |
c4459e09 |
427 | if(0) goto am_again; /* shut up unused warning */ \ |
f5284f61 |
428 | am_again: \ |
a0d0e21e |
429 | if ((SvAMAGIC(arg))&&\ |
430 | (tmpsv=AMG_CALLun(arg,meth))) {\ |
f5284f61 |
431 | SPAGAIN; if (shift) sp += shift; \ |
e8c20960 |
432 | set(tmpsv); ret; } \ |
a0d0e21e |
433 | } \ |
86547924 |
434 | } STMT_END |
a0d0e21e |
435 | |
f5284f61 |
436 | #define FORCE_SETs(sv) STMT_START { sv_setsv(TARG, (sv)); SETTARG; } STMT_END |
437 | |
b162f9ea |
438 | #define tryAMAGICun(meth) tryAMAGICunW(meth,SETsvUN,0,RETURN) |
439 | #define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs,0,RETURN) |
f5284f61 |
440 | #define tryAMAGICunTARGET(meth, shift) \ |
16e7e110 |
441 | STMT_START { dSP; sp--; /* get TARGET from below PL_stack_sp */ \ |
f5284f61 |
442 | { dTARGETSTACKED; \ |
16e7e110 |
443 | { dSP; tryAMAGICunW(meth,FORCE_SETs,shift,RETURN);}}} STMT_END |
444 | |
445 | #define setAGAIN(ref) \ |
446 | STMT_START { \ |
447 | sv = ref; \ |
448 | if (!SvROK(ref)) \ |
449 | Perl_croak(aTHX_ "Overloaded dereference did not return a reference"); \ |
450 | if (ref != arg && SvRV(ref) != SvRV(arg)) { \ |
451 | arg = ref; \ |
452 | goto am_again; \ |
453 | } \ |
454 | } STMT_END |
e8c20960 |
455 | |
0f4592ef |
456 | #define tryAMAGICunDEREF(meth) tryAMAGICunW(meth,setAGAIN,0,(void)0) |
a0d0e21e |
457 | |
533c011a |
458 | #define opASSIGN (PL_op->op_flags & OPf_STACKED) |
e9905555 |
459 | #define SETsv(sv) STMT_START { \ |
b162f9ea |
460 | if (opASSIGN || (SvFLAGS(TARG) & SVs_PADMY)) \ |
461 | { sv_setsv(TARG, (sv)); SETTARG; } \ |
462 | else SETs(sv); } STMT_END |
463 | |
464 | #define SETsvUN(sv) STMT_START { \ |
465 | if (SvFLAGS(TARG) & SVs_PADMY) \ |
466 | { sv_setsv(TARG, (sv)); SETTARG; } \ |
e9905555 |
467 | else SETs(sv); } STMT_END |
a0d0e21e |
468 | |
469 | /* newSVsv does not behave as advertised, so we copy missing |
470 | * information by hand */ |
471 | |
76e3520e |
472 | /* SV* ref causes confusion with the member variable |
473 | changed SV* ref to SV* tmpRef */ |
474 | #define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv); \ |
475 | if (SvREFCNT(tmpRef)>1) { \ |
b162af07 |
476 | SvRV_set(rv, AMG_CALLun(rv,copy)); \ |
76e3520e |
477 | SvREFCNT_dec(tmpRef); \ |
86547924 |
478 | } } STMT_END |
78f9721b |
479 | |
480 | /* |
481 | =for apidoc mU||LVRET |
482 | True if this op will be the return value of an lvalue subroutine |
483 | |
484 | =cut */ |
9d96b2e7 |
485 | #define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub()) |