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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 provide |
102 | a STRLEN n_a and use POPpx. |
103 | |
104 | =for apidoc Amn|char*|POPpx |
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105 | Pops a string off the stack. |
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106 | Requires a variable STRLEN n_a in scope. |
107 | |
108 | =for apidoc Amn|char*|POPpbytex |
109 | Pops a string off the stack which must consist of bytes i.e. characters < 256. |
110 | Requires a variable STRLEN n_a in scope. |
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111 | |
112 | =for apidoc Amn|NV|POPn |
113 | Pops a double off the stack. |
114 | |
115 | =for apidoc Amn|IV|POPi |
116 | Pops an integer off the stack. |
117 | |
118 | =for apidoc Amn|long|POPl |
119 | Pops a long off the stack. |
120 | |
121 | =cut |
122 | */ |
123 | |
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124 | #define PUTBACK PL_stack_sp = sp |
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125 | #define RETURN return PUTBACK, NORMAL |
126 | #define RETURNOP(o) return PUTBACK, o |
127 | #define RETURNX(x) return x, PUTBACK, NORMAL |
128 | |
129 | #define POPs (*sp--) |
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130 | #define POPp (SvPVx(POPs, PL_na)) /* deprecated */ |
131 | #define POPpx (SvPVx(POPs, n_a)) |
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132 | #define POPpbytex (SvPVbytex(POPs, n_a)) |
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133 | #define POPn (SvNVx(POPs)) |
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134 | #define POPi ((IV)SvIVx(POPs)) |
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135 | #define POPu ((UV)SvUVx(POPs)) |
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136 | #define POPl ((long)SvIVx(POPs)) |
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137 | #define POPul ((unsigned long)SvIVx(POPs)) |
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138 | #ifdef HAS_QUAD |
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139 | #define POPq ((Quad_t)SvIVx(POPs)) |
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140 | #define POPuq ((Uquad_t)SvUVx(POPs)) |
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141 | #endif |
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142 | |
143 | #define TOPs (*sp) |
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144 | #define TOPm1s (*(sp-1)) |
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145 | #define TOPp1s (*(sp+1)) |
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146 | #define TOPp (SvPV(TOPs, PL_na)) /* deprecated */ |
147 | #define TOPpx (SvPV(TOPs, n_a)) |
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148 | #define TOPn (SvNV(TOPs)) |
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149 | #define TOPi ((IV)SvIV(TOPs)) |
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150 | #define TOPu ((UV)SvUV(TOPs)) |
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151 | #define TOPl ((long)SvIV(TOPs)) |
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152 | #define TOPul ((unsigned long)SvUV(TOPs)) |
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153 | #ifdef HAS_QUAD |
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154 | #define TOPq ((Quad_t)SvIV(TOPs)) |
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155 | #define TOPuq ((Uquad_t)SvUV(TOPs)) |
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156 | #endif |
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157 | |
158 | /* Go to some pains in the rare event that we must extend the stack. */ |
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159 | |
160 | /* |
161 | =for apidoc Am|void|EXTEND|SP|int nitems |
162 | Used to extend the argument stack for an XSUB's return values. Once |
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163 | used, guarantees that there is room for at least C<nitems> to be pushed |
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164 | onto the stack. |
165 | |
166 | =for apidoc Am|void|PUSHs|SV* sv |
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167 | Push an SV onto the stack. The stack must have room for this element. |
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168 | Does not handle 'set' magic. Does not use C<TARG>. See also C<PUSHmortal>, |
169 | C<XPUSHs> and C<XPUSHmortal>. |
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170 | |
171 | =for apidoc Am|void|PUSHp|char* str|STRLEN len |
172 | Push a string onto the stack. The stack must have room for this element. |
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173 | The C<len> indicates the length of the string. Handles 'set' magic. Uses |
174 | C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to declare it. Do not |
175 | call multiple C<TARG>-oriented macros to return lists from XSUB's - see |
176 | C<mPUSHp> instead. See also C<XPUSHp> and C<mXPUSHp>. |
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177 | |
178 | =for apidoc Am|void|PUSHn|NV nv |
179 | Push a double onto the stack. The stack must have room for this element. |
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180 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
181 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
182 | return lists from XSUB's - see C<mPUSHn> instead. See also C<XPUSHn> and |
183 | C<mXPUSHn>. |
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184 | |
185 | =for apidoc Am|void|PUSHi|IV iv |
186 | Push an integer onto the stack. The stack must have room for this element. |
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187 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
188 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
189 | return lists from XSUB's - see C<mPUSHi> instead. See also C<XPUSHi> and |
190 | C<mXPUSHi>. |
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191 | |
192 | =for apidoc Am|void|PUSHu|UV uv |
193 | Push an unsigned integer onto the stack. The stack must have room for this |
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194 | element. Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> |
195 | should be called to declare it. Do not call multiple C<TARG>-oriented |
196 | macros to return lists from XSUB's - see C<mPUSHu> instead. See also |
197 | C<XPUSHu> and C<mXPUSHu>. |
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198 | |
199 | =for apidoc Am|void|XPUSHs|SV* sv |
200 | Push an SV onto the stack, extending the stack if necessary. Does not |
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201 | handle 'set' magic. Does not use C<TARG>. See also C<XPUSHmortal>, |
202 | C<PUSHs> and C<PUSHmortal>. |
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203 | |
204 | =for apidoc Am|void|XPUSHp|char* str|STRLEN len |
205 | Push a string onto the stack, extending the stack if necessary. The C<len> |
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206 | indicates the length of the string. Handles 'set' magic. Uses C<TARG>, so |
207 | C<dTARGET> or C<dXSTARG> should be called to declare it. Do not call |
208 | multiple C<TARG>-oriented macros to return lists from XSUB's - see |
209 | C<mXPUSHp> instead. See also C<PUSHp> and C<mPUSHp>. |
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210 | |
211 | =for apidoc Am|void|XPUSHn|NV nv |
212 | Push a double onto the stack, extending the stack if necessary. Handles |
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213 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to |
214 | declare it. Do not call multiple C<TARG>-oriented macros to return lists |
215 | from XSUB's - see C<mXPUSHn> instead. See also C<PUSHn> and C<mPUSHn>. |
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216 | |
217 | =for apidoc Am|void|XPUSHi|IV iv |
218 | Push an integer onto the stack, extending the stack if necessary. Handles |
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219 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to |
220 | declare it. Do not call multiple C<TARG>-oriented macros to return lists |
221 | from XSUB's - see C<mXPUSHi> instead. See also C<PUSHi> and C<mPUSHi>. |
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222 | |
223 | =for apidoc Am|void|XPUSHu|UV uv |
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224 | Push an unsigned integer onto the stack, extending the stack if necessary. |
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225 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
226 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
227 | return lists from XSUB's - see C<mXPUSHu> instead. See also C<PUSHu> and |
228 | C<mPUSHu>. |
229 | |
230 | =for apidoc Am|void|PUSHmortal |
231 | Push a new mortal SV onto the stack. The stack must have room for this |
232 | element. Does not handle 'set' magic. Does not use C<TARG>. See also |
233 | C<PUSHs>, C<XPUSHmortal> and C<XPUSHs>. |
234 | |
235 | =for apidoc Am|void|mPUSHp|char* str|STRLEN len |
236 | Push a string onto the stack. The stack must have room for this element. |
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237 | The C<len> indicates the length of the string. Handles 'set' magic. Does |
238 | not use C<TARG>. See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>. |
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239 | |
240 | =for apidoc Am|void|mPUSHn|NV nv |
241 | Push a double onto the stack. The stack must have room for this element. |
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242 | Handles 'set' magic. Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn> |
243 | and C<XPUSHn>. |
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244 | |
245 | =for apidoc Am|void|mPUSHi|IV iv |
246 | Push an integer onto the stack. The stack must have room for this element. |
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247 | Handles 'set' magic. Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi> |
248 | and C<XPUSHi>. |
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249 | |
250 | =for apidoc Am|void|mPUSHu|UV uv |
251 | Push an unsigned integer onto the stack. The stack must have room for this |
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252 | element. Handles 'set' magic. Does not use C<TARG>. See also C<PUSHu>, |
253 | C<mXPUSHu> and C<XPUSHu>. |
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254 | |
255 | =for apidoc Am|void|XPUSHmortal |
256 | Push a new mortal SV onto the stack, extending the stack if necessary. Does |
257 | not handle 'set' magic. Does not use C<TARG>. See also C<XPUSHs>, |
258 | C<PUSHmortal> and C<PUSHs>. |
259 | |
260 | =for apidoc Am|void|mXPUSHp|char* str|STRLEN len |
261 | Push a string onto the stack, extending the stack if necessary. The C<len> |
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262 | indicates the length of the string. Handles 'set' magic. Does not use |
263 | C<TARG>. See also C<XPUSHp>, C<mPUSHp> and C<PUSHp>. |
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264 | |
265 | =for apidoc Am|void|mXPUSHn|NV nv |
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266 | Push a double onto the stack, extending the stack if necessary. Handles |
267 | 'set' magic. Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and |
268 | C<PUSHn>. |
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269 | |
270 | =for apidoc Am|void|mXPUSHi|IV iv |
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271 | Push an integer onto the stack, extending the stack if necessary. Handles |
272 | 'set' magic. Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and |
273 | C<PUSHi>. |
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274 | |
275 | =for apidoc Am|void|mXPUSHu|UV uv |
276 | Push an unsigned integer onto the stack, extending the stack if necessary. |
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277 | Handles 'set' magic. Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu> |
278 | and C<PUSHu>. |
954c1994 |
279 | |
280 | =cut |
281 | */ |
282 | |
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283 | #define EXTEND(p,n) STMT_START { if (PL_stack_max - p < (int)(n)) { \ |
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284 | sp = stack_grow(sp,p, (int) (n)); \ |
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285 | } } STMT_END |
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286 | |
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287 | /* Same thing, but update mark register too. */ |
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288 | #define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (int)(n)) { \ |
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289 | int markoff = mark - PL_stack_base; \ |
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290 | sp = stack_grow(sp,p,(int) (n)); \ |
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291 | mark = PL_stack_base + markoff; \ |
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292 | } } STMT_END |
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293 | |
294 | #define PUSHs(s) (*++sp = (s)) |
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295 | #define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END |
296 | #define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END |
65202027 |
297 | #define PUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END |
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298 | #define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END |
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299 | #define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END |
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300 | |
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301 | #define XPUSHs(s) STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END |
302 | #define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END |
303 | #define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END |
65202027 |
304 | #define XPUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END |
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305 | #define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END |
55497cff |
306 | #define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END |
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307 | #define XPUSHundef STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END |
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308 | |
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309 | #define PUSHmortal PUSHs(sv_newmortal()) |
310 | #define mPUSHp(p,l) sv_setpvn_mg(PUSHmortal, (p), (l)) |
311 | #define mPUSHn(n) sv_setnv_mg(PUSHmortal, (NV)(n)) |
312 | #define mPUSHi(i) sv_setiv_mg(PUSHmortal, (IV)(i)) |
313 | #define mPUSHu(u) sv_setuv_mg(PUSHmortal, (UV)(u)) |
314 | |
315 | #define XPUSHmortal XPUSHs(sv_newmortal()) |
316 | #define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); sv_setpvn_mg(PUSHmortal, (p), (l)); } STMT_END |
317 | #define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv_mg(PUSHmortal, (NV)(n)); } STMT_END |
318 | #define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv_mg(PUSHmortal, (IV)(i)); } STMT_END |
319 | #define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv_mg(PUSHmortal, (UV)(u)); } STMT_END |
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320 | |
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321 | #define SETs(s) (*sp = s) |
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322 | #define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END |
323 | #define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END |
65202027 |
324 | #define SETn(n) STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END |
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325 | #define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END |
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326 | #define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END |
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327 | |
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328 | #define dTOPss SV *sv = TOPs |
329 | #define dPOPss SV *sv = POPs |
65202027 |
330 | #define dTOPnv NV value = TOPn |
331 | #define dPOPnv NV value = POPn |
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332 | #define dTOPiv IV value = TOPi |
333 | #define dPOPiv IV value = POPi |
55497cff |
334 | #define dTOPuv UV value = TOPu |
335 | #define dPOPuv UV value = POPu |
1b8cd678 |
336 | #ifdef HAS_QUAD |
2d4389e4 |
337 | #define dTOPqv Quad_t value = TOPu |
338 | #define dPOPqv Quad_t value = POPu |
339 | #define dTOPuqv Uquad_t value = TOPuq |
340 | #define dPOPuqv Uquad_t value = POPuq |
341 | #endif |
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342 | |
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343 | #define dPOPXssrl(X) SV *right = POPs; SV *left = CAT2(X,s) |
65202027 |
344 | #define dPOPXnnrl(X) NV right = POPn; NV left = CAT2(X,n) |
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345 | #define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i) |
346 | |
347 | #define USE_LEFT(sv) \ |
533c011a |
348 | (SvOK(sv) || SvGMAGICAL(sv) || !(PL_op->op_flags & OPf_STACKED)) |
7a4c00b4 |
349 | #define dPOPXnnrl_ul(X) \ |
65202027 |
350 | NV right = POPn; \ |
7a4c00b4 |
351 | SV *leftsv = CAT2(X,s); \ |
65202027 |
352 | NV left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0 |
7a4c00b4 |
353 | #define dPOPXiirl_ul(X) \ |
354 | IV right = POPi; \ |
355 | SV *leftsv = CAT2(X,s); \ |
356 | IV left = USE_LEFT(leftsv) ? SvIV(leftsv) : 0 |
357 | |
358 | #define dPOPPOPssrl dPOPXssrl(POP) |
359 | #define dPOPPOPnnrl dPOPXnnrl(POP) |
360 | #define dPOPPOPnnrl_ul dPOPXnnrl_ul(POP) |
361 | #define dPOPPOPiirl dPOPXiirl(POP) |
362 | #define dPOPPOPiirl_ul dPOPXiirl_ul(POP) |
363 | |
364 | #define dPOPTOPssrl dPOPXssrl(TOP) |
365 | #define dPOPTOPnnrl dPOPXnnrl(TOP) |
366 | #define dPOPTOPnnrl_ul dPOPXnnrl_ul(TOP) |
367 | #define dPOPTOPiirl dPOPXiirl(TOP) |
368 | #define dPOPTOPiirl_ul dPOPXiirl_ul(TOP) |
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369 | |
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370 | #define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes)) |
371 | #define RETPUSHNO RETURNX(PUSHs(&PL_sv_no)) |
372 | #define RETPUSHUNDEF RETURNX(PUSHs(&PL_sv_undef)) |
79072805 |
373 | |
3280af22 |
374 | #define RETSETYES RETURNX(SETs(&PL_sv_yes)) |
375 | #define RETSETNO RETURNX(SETs(&PL_sv_no)) |
376 | #define RETSETUNDEF RETURNX(SETs(&PL_sv_undef)) |
79072805 |
377 | |
533c011a |
378 | #define ARGTARG PL_op->op_targ |
b162f9ea |
379 | |
380 | /* See OPpTARGET_MY: */ |
381 | #define MAXARG (PL_op->op_private & 15) |
79072805 |
382 | |
e336de0d |
383 | #define SWITCHSTACK(f,t) \ |
384 | STMT_START { \ |
677b06e3 |
385 | AvFILLp(f) = sp - PL_stack_base; \ |
3280af22 |
386 | PL_stack_base = AvARRAY(t); \ |
677b06e3 |
387 | PL_stack_max = PL_stack_base + AvMAX(t); \ |
3280af22 |
388 | sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \ |
677b06e3 |
389 | PL_curstack = t; \ |
e336de0d |
390 | } STMT_END |
79072805 |
391 | |
bbce6d69 |
392 | #define EXTEND_MORTAL(n) \ |
677b06e3 |
393 | STMT_START { \ |
394 | if (PL_tmps_ix + (n) >= PL_tmps_max) \ |
395 | tmps_grow(n); \ |
396 | } STMT_END |
bbce6d69 |
397 | |
a0d0e21e |
398 | #define AMGf_noright 1 |
399 | #define AMGf_noleft 2 |
400 | #define AMGf_assign 4 |
401 | #define AMGf_unary 8 |
402 | |
86547924 |
403 | #define tryAMAGICbinW(meth,assign,set) STMT_START { \ |
3280af22 |
404 | if (PL_amagic_generation) { \ |
a0d0e21e |
405 | SV* tmpsv; \ |
406 | SV* right= *(sp); SV* left= *(sp-1);\ |
407 | if ((SvAMAGIC(left)||SvAMAGIC(right))&&\ |
408 | (tmpsv=amagic_call(left, \ |
409 | right, \ |
410 | CAT2(meth,_amg), \ |
411 | (assign)? AMGf_assign: 0))) {\ |
412 | SPAGAIN; \ |
413 | (void)POPs; set(tmpsv); RETURN; } \ |
414 | } \ |
86547924 |
415 | } STMT_END |
a0d0e21e |
416 | |
417 | #define tryAMAGICbin(meth,assign) tryAMAGICbinW(meth,assign,SETsv) |
418 | #define tryAMAGICbinSET(meth,assign) tryAMAGICbinW(meth,assign,SETs) |
419 | |
3280af22 |
420 | #define AMG_CALLun(sv,meth) amagic_call(sv,&PL_sv_undef, \ |
a0d0e21e |
421 | CAT2(meth,_amg),AMGf_noright | AMGf_unary) |
422 | #define AMG_CALLbinL(left,right,meth) \ |
423 | amagic_call(left,right,CAT2(meth,_amg),AMGf_noright) |
424 | |
e8c20960 |
425 | #define tryAMAGICunW(meth,set,shift,ret) STMT_START { \ |
3280af22 |
426 | if (PL_amagic_generation) { \ |
a0d0e21e |
427 | SV* tmpsv; \ |
f5284f61 |
428 | SV* arg= sp[shift]; \ |
c4459e09 |
429 | if(0) goto am_again; /* shut up unused warning */ \ |
f5284f61 |
430 | am_again: \ |
a0d0e21e |
431 | if ((SvAMAGIC(arg))&&\ |
432 | (tmpsv=AMG_CALLun(arg,meth))) {\ |
f5284f61 |
433 | SPAGAIN; if (shift) sp += shift; \ |
e8c20960 |
434 | set(tmpsv); ret; } \ |
a0d0e21e |
435 | } \ |
86547924 |
436 | } STMT_END |
a0d0e21e |
437 | |
f5284f61 |
438 | #define FORCE_SETs(sv) STMT_START { sv_setsv(TARG, (sv)); SETTARG; } STMT_END |
439 | |
b162f9ea |
440 | #define tryAMAGICun(meth) tryAMAGICunW(meth,SETsvUN,0,RETURN) |
441 | #define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs,0,RETURN) |
f5284f61 |
442 | #define tryAMAGICunTARGET(meth, shift) \ |
16e7e110 |
443 | STMT_START { dSP; sp--; /* get TARGET from below PL_stack_sp */ \ |
f5284f61 |
444 | { dTARGETSTACKED; \ |
16e7e110 |
445 | { dSP; tryAMAGICunW(meth,FORCE_SETs,shift,RETURN);}}} STMT_END |
446 | |
447 | #define setAGAIN(ref) \ |
448 | STMT_START { \ |
449 | sv = ref; \ |
450 | if (!SvROK(ref)) \ |
451 | Perl_croak(aTHX_ "Overloaded dereference did not return a reference"); \ |
452 | if (ref != arg && SvRV(ref) != SvRV(arg)) { \ |
453 | arg = ref; \ |
454 | goto am_again; \ |
455 | } \ |
456 | } STMT_END |
e8c20960 |
457 | |
0f4592ef |
458 | #define tryAMAGICunDEREF(meth) tryAMAGICunW(meth,setAGAIN,0,(void)0) |
a0d0e21e |
459 | |
533c011a |
460 | #define opASSIGN (PL_op->op_flags & OPf_STACKED) |
e9905555 |
461 | #define SETsv(sv) STMT_START { \ |
b162f9ea |
462 | if (opASSIGN || (SvFLAGS(TARG) & SVs_PADMY)) \ |
463 | { sv_setsv(TARG, (sv)); SETTARG; } \ |
464 | else SETs(sv); } STMT_END |
465 | |
466 | #define SETsvUN(sv) STMT_START { \ |
467 | if (SvFLAGS(TARG) & SVs_PADMY) \ |
468 | { sv_setsv(TARG, (sv)); SETTARG; } \ |
e9905555 |
469 | else SETs(sv); } STMT_END |
a0d0e21e |
470 | |
471 | /* newSVsv does not behave as advertised, so we copy missing |
472 | * information by hand */ |
473 | |
76e3520e |
474 | /* SV* ref causes confusion with the member variable |
475 | changed SV* ref to SV* tmpRef */ |
476 | #define RvDEEPCP(rv) STMT_START { SV* tmpRef=SvRV(rv); \ |
477 | if (SvREFCNT(tmpRef)>1) { \ |
b162af07 |
478 | SvRV_set(rv, AMG_CALLun(rv,copy)); \ |
76e3520e |
479 | SvREFCNT_dec(tmpRef); \ |
86547924 |
480 | } } STMT_END |
78f9721b |
481 | |
482 | /* |
483 | =for apidoc mU||LVRET |
484 | True if this op will be the return value of an lvalue subroutine |
485 | |
486 | =cut */ |
9d96b2e7 |
487 | #define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub()) |