| 1 | /* pp.h |
| 2 | * |
| 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, |
| 4 | * 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others |
| 5 | * |
| 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. |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | #define PP(s) OP * Perl_##s(pTHX) |
| 12 | |
| 13 | /* |
| 14 | =head1 Stack Manipulation Macros |
| 15 | |
| 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 | |
| 23 | =for apidoc Am|void|PUSHMARK|SP |
| 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 | |
| 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 | |
| 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 | |
| 51 | =cut */ |
| 52 | |
| 53 | #undef SP /* Solaris 2.7 i386 has this in /usr/include/sys/reg.h */ |
| 54 | #define SP sp |
| 55 | #define MARK mark |
| 56 | #define TARG targ |
| 57 | |
| 58 | #define PUSHMARK(p) \ |
| 59 | STMT_START { \ |
| 60 | if (++PL_markstack_ptr == PL_markstack_max) \ |
| 61 | markstack_grow(); \ |
| 62 | *PL_markstack_ptr = (I32)((p) - PL_stack_base);\ |
| 63 | } STMT_END |
| 64 | |
| 65 | #define TOPMARK (*PL_markstack_ptr) |
| 66 | #define POPMARK (*PL_markstack_ptr--) |
| 67 | |
| 68 | #define dSP SV **sp = PL_stack_sp |
| 69 | #define djSP dSP |
| 70 | #define dMARK register SV **mark = PL_stack_base + POPMARK |
| 71 | #define dORIGMARK const I32 origmark = (I32)(mark - PL_stack_base) |
| 72 | #define ORIGMARK (PL_stack_base + origmark) |
| 73 | |
| 74 | #define SPAGAIN sp = PL_stack_sp |
| 75 | #define MSPAGAIN STMT_START { sp = PL_stack_sp; mark = ORIGMARK; } STMT_END |
| 76 | |
| 77 | #define GETTARGETSTACKED targ = (PL_op->op_flags & OPf_STACKED ? POPs : PAD_SV(PL_op->op_targ)) |
| 78 | #define dTARGETSTACKED SV * GETTARGETSTACKED |
| 79 | |
| 80 | #define GETTARGET targ = PAD_SV(PL_op->op_targ) |
| 81 | #define dTARGET SV * GETTARGET |
| 82 | |
| 83 | #define GETATARGET targ = (PL_op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(PL_op->op_targ)) |
| 84 | #define dATARGET SV * GETATARGET |
| 85 | |
| 86 | #define dTARG SV *targ |
| 87 | |
| 88 | #define NORMAL PL_op->op_next |
| 89 | #define DIE return Perl_die |
| 90 | |
| 91 | /* |
| 92 | =for apidoc Ams||PUTBACK |
| 93 | Closing bracket for XSUB arguments. This is usually handled by C<xsubpp>. |
| 94 | See C<PUSHMARK> and L<perlcall> for other uses. |
| 95 | |
| 96 | =for apidoc Amn|SV*|POPs |
| 97 | Pops an SV off the stack. |
| 98 | |
| 99 | =for apidoc Amn|char*|POPp |
| 100 | Pops a string off the stack. Deprecated. New code should use POPpx. |
| 101 | |
| 102 | =for apidoc Amn|char*|POPpx |
| 103 | Pops a string off the stack. |
| 104 | |
| 105 | =for apidoc Amn|char*|POPpbytex |
| 106 | Pops a string off the stack which must consist of bytes i.e. characters < 256. |
| 107 | |
| 108 | =for apidoc Amn|NV|POPn |
| 109 | Pops a double off the stack. |
| 110 | |
| 111 | =for apidoc Amn|IV|POPi |
| 112 | Pops an integer off the stack. |
| 113 | |
| 114 | =for apidoc Amn|long|POPl |
| 115 | Pops a long off the stack. |
| 116 | |
| 117 | =cut |
| 118 | */ |
| 119 | |
| 120 | #define PUTBACK PL_stack_sp = sp |
| 121 | #define RETURN return (PUTBACK, NORMAL) |
| 122 | #define RETURNOP(o) return (PUTBACK, o) |
| 123 | #define RETURNX(x) return (x, PUTBACK, NORMAL) |
| 124 | |
| 125 | #define POPs (*sp--) |
| 126 | #define POPp (SvPVx(POPs, PL_na)) /* deprecated */ |
| 127 | #define POPpx (SvPVx_nolen(POPs)) |
| 128 | #define POPpconstx (SvPVx_nolen_const(POPs)) |
| 129 | #define POPpbytex (SvPVbytex_nolen(POPs)) |
| 130 | #define POPn (SvNVx(POPs)) |
| 131 | #define POPi ((IV)SvIVx(POPs)) |
| 132 | #define POPu ((UV)SvUVx(POPs)) |
| 133 | #define POPl ((long)SvIVx(POPs)) |
| 134 | #define POPul ((unsigned long)SvIVx(POPs)) |
| 135 | #ifdef HAS_QUAD |
| 136 | #define POPq ((Quad_t)SvIVx(POPs)) |
| 137 | #define POPuq ((Uquad_t)SvUVx(POPs)) |
| 138 | #endif |
| 139 | |
| 140 | #define TOPs (*sp) |
| 141 | #define TOPm1s (*(sp-1)) |
| 142 | #define TOPp1s (*(sp+1)) |
| 143 | #define TOPp (SvPV(TOPs, PL_na)) /* deprecated */ |
| 144 | #define TOPpx (SvPV_nolen(TOPs)) |
| 145 | #define TOPn (SvNV(TOPs)) |
| 146 | #define TOPi ((IV)SvIV(TOPs)) |
| 147 | #define TOPu ((UV)SvUV(TOPs)) |
| 148 | #define TOPl ((long)SvIV(TOPs)) |
| 149 | #define TOPul ((unsigned long)SvUV(TOPs)) |
| 150 | #ifdef HAS_QUAD |
| 151 | #define TOPq ((Quad_t)SvIV(TOPs)) |
| 152 | #define TOPuq ((Uquad_t)SvUV(TOPs)) |
| 153 | #endif |
| 154 | |
| 155 | /* Go to some pains in the rare event that we must extend the stack. */ |
| 156 | |
| 157 | /* |
| 158 | =for apidoc Am|void|EXTEND|SP|int nitems |
| 159 | Used to extend the argument stack for an XSUB's return values. Once |
| 160 | used, guarantees that there is room for at least C<nitems> to be pushed |
| 161 | onto the stack. |
| 162 | |
| 163 | =for apidoc Am|void|PUSHs|SV* sv |
| 164 | Push an SV onto the stack. The stack must have room for this element. |
| 165 | Does not handle 'set' magic. Does not use C<TARG>. See also C<PUSHmortal>, |
| 166 | C<XPUSHs> and C<XPUSHmortal>. |
| 167 | |
| 168 | =for apidoc Am|void|PUSHp|char* str|STRLEN len |
| 169 | Push a string onto the stack. The stack must have room for this element. |
| 170 | The C<len> indicates the length of the string. Handles 'set' magic. Uses |
| 171 | C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to declare it. Do not |
| 172 | call multiple C<TARG>-oriented macros to return lists from XSUB's - see |
| 173 | C<mPUSHp> instead. See also C<XPUSHp> and C<mXPUSHp>. |
| 174 | |
| 175 | =for apidoc Am|void|PUSHn|NV nv |
| 176 | Push a double onto the stack. The stack must have room for this element. |
| 177 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
| 178 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
| 179 | return lists from XSUB's - see C<mPUSHn> instead. See also C<XPUSHn> and |
| 180 | C<mXPUSHn>. |
| 181 | |
| 182 | =for apidoc Am|void|PUSHi|IV iv |
| 183 | Push an integer onto the stack. The stack must have room for this element. |
| 184 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
| 185 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
| 186 | return lists from XSUB's - see C<mPUSHi> instead. See also C<XPUSHi> and |
| 187 | C<mXPUSHi>. |
| 188 | |
| 189 | =for apidoc Am|void|PUSHu|UV uv |
| 190 | Push an unsigned integer onto the stack. The stack must have room for this |
| 191 | element. Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> |
| 192 | should be called to declare it. Do not call multiple C<TARG>-oriented |
| 193 | macros to return lists from XSUB's - see C<mPUSHu> instead. See also |
| 194 | C<XPUSHu> and C<mXPUSHu>. |
| 195 | |
| 196 | =for apidoc Am|void|XPUSHs|SV* sv |
| 197 | Push an SV onto the stack, extending the stack if necessary. Does not |
| 198 | handle 'set' magic. Does not use C<TARG>. See also C<XPUSHmortal>, |
| 199 | C<PUSHs> and C<PUSHmortal>. |
| 200 | |
| 201 | =for apidoc Am|void|XPUSHp|char* str|STRLEN len |
| 202 | Push a string onto the stack, extending the stack if necessary. The C<len> |
| 203 | indicates the length of the string. Handles 'set' magic. Uses C<TARG>, so |
| 204 | C<dTARGET> or C<dXSTARG> should be called to declare it. Do not call |
| 205 | multiple C<TARG>-oriented macros to return lists from XSUB's - see |
| 206 | C<mXPUSHp> instead. See also C<PUSHp> and C<mPUSHp>. |
| 207 | |
| 208 | =for apidoc Am|void|XPUSHn|NV nv |
| 209 | Push a double onto the stack, extending the stack if necessary. Handles |
| 210 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to |
| 211 | declare it. Do not call multiple C<TARG>-oriented macros to return lists |
| 212 | from XSUB's - see C<mXPUSHn> instead. See also C<PUSHn> and C<mPUSHn>. |
| 213 | |
| 214 | =for apidoc Am|void|XPUSHi|IV iv |
| 215 | Push an integer onto the stack, extending the stack if necessary. Handles |
| 216 | 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be called to |
| 217 | declare it. Do not call multiple C<TARG>-oriented macros to return lists |
| 218 | from XSUB's - see C<mXPUSHi> instead. See also C<PUSHi> and C<mPUSHi>. |
| 219 | |
| 220 | =for apidoc Am|void|XPUSHu|UV uv |
| 221 | Push an unsigned integer onto the stack, extending the stack if necessary. |
| 222 | Handles 'set' magic. Uses C<TARG>, so C<dTARGET> or C<dXSTARG> should be |
| 223 | called to declare it. Do not call multiple C<TARG>-oriented macros to |
| 224 | return lists from XSUB's - see C<mXPUSHu> instead. See also C<PUSHu> and |
| 225 | C<mPUSHu>. |
| 226 | |
| 227 | =for apidoc Am|void|mPUSHs|SV* sv |
| 228 | Push an SV onto the stack and mortalizes the SV. The stack must have room |
| 229 | for this element. Does not use C<TARG>. See also C<PUSHs> and C<mXPUSHs>. |
| 230 | |
| 231 | =for apidoc Am|void|PUSHmortal |
| 232 | Push a new mortal SV onto the stack. The stack must have room for this |
| 233 | element. Does not use C<TARG>. See also 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. |
| 237 | The C<len> indicates the length of the string. Does not use C<TARG>. |
| 238 | See also C<PUSHp>, C<mXPUSHp> and C<XPUSHp>. |
| 239 | |
| 240 | =for apidoc Am|void|mPUSHn|NV nv |
| 241 | Push a double onto the stack. The stack must have room for this element. |
| 242 | Does not use C<TARG>. See also C<PUSHn>, C<mXPUSHn> and C<XPUSHn>. |
| 243 | |
| 244 | =for apidoc Am|void|mPUSHi|IV iv |
| 245 | Push an integer onto the stack. The stack must have room for this element. |
| 246 | Does not use C<TARG>. See also C<PUSHi>, C<mXPUSHi> and C<XPUSHi>. |
| 247 | |
| 248 | =for apidoc Am|void|mPUSHu|UV uv |
| 249 | Push an unsigned integer onto the stack. The stack must have room for this |
| 250 | element. Does not use C<TARG>. See also C<PUSHu>, C<mXPUSHu> and C<XPUSHu>. |
| 251 | |
| 252 | =for apidoc Am|void|mXPUSHs|SV* sv |
| 253 | Push an SV onto the stack, extending the stack if necessary and mortalizes |
| 254 | the SV. Does not use C<TARG>. See also C<XPUSHs> and C<mPUSHs>. |
| 255 | |
| 256 | =for apidoc Am|void|XPUSHmortal |
| 257 | Push a new mortal SV onto the stack, extending the stack if necessary. |
| 258 | Does not use C<TARG>. See also C<XPUSHs>, 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> |
| 262 | indicates the length of the string. Does not use C<TARG>. See also C<XPUSHp>, |
| 263 | C<mPUSHp> and C<PUSHp>. |
| 264 | |
| 265 | =for apidoc Am|void|mXPUSHn|NV nv |
| 266 | Push a double onto the stack, extending the stack if necessary. |
| 267 | Does not use C<TARG>. See also C<XPUSHn>, C<mPUSHn> and C<PUSHn>. |
| 268 | |
| 269 | =for apidoc Am|void|mXPUSHi|IV iv |
| 270 | Push an integer onto the stack, extending the stack if necessary. |
| 271 | Does not use C<TARG>. See also C<XPUSHi>, C<mPUSHi> and C<PUSHi>. |
| 272 | |
| 273 | =for apidoc Am|void|mXPUSHu|UV uv |
| 274 | Push an unsigned integer onto the stack, extending the stack if necessary. |
| 275 | Does not use C<TARG>. See also C<XPUSHu>, C<mPUSHu> and C<PUSHu>. |
| 276 | |
| 277 | =cut |
| 278 | */ |
| 279 | |
| 280 | #define EXTEND(p,n) STMT_START { if (PL_stack_max - p < (int)(n)) { \ |
| 281 | sp = stack_grow(sp,p, (int) (n)); \ |
| 282 | } } STMT_END |
| 283 | |
| 284 | /* Same thing, but update mark register too. */ |
| 285 | #define MEXTEND(p,n) STMT_START {if (PL_stack_max - p < (int)(n)) { \ |
| 286 | const int markoff = mark - PL_stack_base; \ |
| 287 | sp = stack_grow(sp,p,(int) (n)); \ |
| 288 | mark = PL_stack_base + markoff; \ |
| 289 | } } STMT_END |
| 290 | |
| 291 | #define PUSHs(s) (*++sp = (s)) |
| 292 | #define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END |
| 293 | #define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END |
| 294 | #define PUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); PUSHTARG; } STMT_END |
| 295 | #define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END |
| 296 | #define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END |
| 297 | |
| 298 | #define XPUSHs(s) STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END |
| 299 | #define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END |
| 300 | #define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END |
| 301 | #define XPUSHn(n) STMT_START { sv_setnv(TARG, (NV)(n)); XPUSHTARG; } STMT_END |
| 302 | #define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END |
| 303 | #define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END |
| 304 | #define XPUSHundef STMT_START { SvOK_off(TARG); XPUSHs(TARG); } STMT_END |
| 305 | |
| 306 | #define mPUSHs(s) PUSHs(sv_2mortal(s)) |
| 307 | #define PUSHmortal PUSHs(sv_newmortal()) |
| 308 | #define mPUSHp(p,l) PUSHs(newSVpvn_flags((p), (l), SVs_TEMP)) |
| 309 | #define mPUSHn(n) sv_setnv(PUSHmortal, (NV)(n)) |
| 310 | #define mPUSHi(i) sv_setiv(PUSHmortal, (IV)(i)) |
| 311 | #define mPUSHu(u) sv_setuv(PUSHmortal, (UV)(u)) |
| 312 | |
| 313 | #define mXPUSHs(s) XPUSHs(sv_2mortal(s)) |
| 314 | #define XPUSHmortal XPUSHs(sv_newmortal()) |
| 315 | #define mXPUSHp(p,l) STMT_START { EXTEND(sp,1); mPUSHp((p), (l)); } STMT_END |
| 316 | #define mXPUSHn(n) STMT_START { EXTEND(sp,1); sv_setnv(PUSHmortal, (NV)(n)); } STMT_END |
| 317 | #define mXPUSHi(i) STMT_START { EXTEND(sp,1); sv_setiv(PUSHmortal, (IV)(i)); } STMT_END |
| 318 | #define mXPUSHu(u) STMT_START { EXTEND(sp,1); sv_setuv(PUSHmortal, (UV)(u)); } STMT_END |
| 319 | |
| 320 | #define SETs(s) (*sp = s) |
| 321 | #define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END |
| 322 | #define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END |
| 323 | #define SETn(n) STMT_START { sv_setnv(TARG, (NV)(n)); SETTARG; } STMT_END |
| 324 | #define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END |
| 325 | #define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END |
| 326 | |
| 327 | #define dTOPss SV *sv = TOPs |
| 328 | #define dPOPss SV *sv = POPs |
| 329 | #define dTOPnv NV value = TOPn |
| 330 | #define dPOPnv NV value = POPn |
| 331 | #define dPOPnv_nomg NV value = (sp--, SvNV_nomg(TOPp1s)) |
| 332 | #define dTOPiv IV value = TOPi |
| 333 | #define dPOPiv IV value = POPi |
| 334 | #define dTOPuv UV value = TOPu |
| 335 | #define dPOPuv UV value = POPu |
| 336 | #ifdef HAS_QUAD |
| 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 |
| 342 | |
| 343 | #define dPOPXssrl(X) SV *right = POPs; SV *left = CAT2(X,s) |
| 344 | #define dPOPXnnrl(X) NV right = POPn; NV left = CAT2(X,n) |
| 345 | #define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i) |
| 346 | |
| 347 | #define USE_LEFT(sv) \ |
| 348 | (SvOK(sv) || SvGMAGICAL(sv) || !(PL_op->op_flags & OPf_STACKED)) |
| 349 | #define dPOPXnnrl_ul(X) \ |
| 350 | NV right = POPn; \ |
| 351 | SV *leftsv = CAT2(X,s); \ |
| 352 | NV left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0 |
| 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 | #define dPOPXiirl_ul_nomg(X) \ |
| 358 | IV right = (sp--, SvIV_nomg(TOPp1s)); \ |
| 359 | SV *leftsv = CAT2(X,s); \ |
| 360 | IV left = USE_LEFT(leftsv) ? SvIV_nomg(leftsv) : 0 |
| 361 | |
| 362 | #define dPOPPOPssrl dPOPXssrl(POP) |
| 363 | #define dPOPPOPnnrl dPOPXnnrl(POP) |
| 364 | #define dPOPPOPnnrl_ul dPOPXnnrl_ul(POP) |
| 365 | #define dPOPPOPiirl dPOPXiirl(POP) |
| 366 | #define dPOPPOPiirl_ul dPOPXiirl_ul(POP) |
| 367 | |
| 368 | #define dPOPTOPssrl dPOPXssrl(TOP) |
| 369 | #define dPOPTOPnnrl dPOPXnnrl(TOP) |
| 370 | #define dPOPTOPnnrl_ul dPOPXnnrl_ul(TOP) |
| 371 | #define dPOPTOPnnrl_nomg \ |
| 372 | NV right = SvNV_nomg(TOPs); NV left = (sp--, SvNV_nomg(TOPs)) |
| 373 | #define dPOPTOPiirl dPOPXiirl(TOP) |
| 374 | #define dPOPTOPiirl_ul dPOPXiirl_ul(TOP) |
| 375 | #define dPOPTOPiirl_ul_nomg dPOPXiirl_ul_nomg(TOP) |
| 376 | #define dPOPTOPiirl_nomg \ |
| 377 | IV right = SvIV_nomg(TOPs); IV left = (sp--, SvIV_nomg(TOPs)) |
| 378 | |
| 379 | #define RETPUSHYES RETURNX(PUSHs(&PL_sv_yes)) |
| 380 | #define RETPUSHNO RETURNX(PUSHs(&PL_sv_no)) |
| 381 | #define RETPUSHUNDEF RETURNX(PUSHs(&PL_sv_undef)) |
| 382 | |
| 383 | #define RETSETYES RETURNX(SETs(&PL_sv_yes)) |
| 384 | #define RETSETNO RETURNX(SETs(&PL_sv_no)) |
| 385 | #define RETSETUNDEF RETURNX(SETs(&PL_sv_undef)) |
| 386 | |
| 387 | #define ARGTARG PL_op->op_targ |
| 388 | |
| 389 | /* See OPpTARGET_MY: */ |
| 390 | #define MAXARG (PL_op->op_private & 15) |
| 391 | |
| 392 | #define SWITCHSTACK(f,t) \ |
| 393 | STMT_START { \ |
| 394 | AvFILLp(f) = sp - PL_stack_base; \ |
| 395 | PL_stack_base = AvARRAY(t); \ |
| 396 | PL_stack_max = PL_stack_base + AvMAX(t); \ |
| 397 | sp = PL_stack_sp = PL_stack_base + AvFILLp(t); \ |
| 398 | PL_curstack = t; \ |
| 399 | } STMT_END |
| 400 | |
| 401 | #define EXTEND_MORTAL(n) \ |
| 402 | STMT_START { \ |
| 403 | if (PL_tmps_ix + (n) >= PL_tmps_max) \ |
| 404 | tmps_grow(n); \ |
| 405 | } STMT_END |
| 406 | |
| 407 | #define AMGf_noright 1 |
| 408 | #define AMGf_noleft 2 |
| 409 | #define AMGf_assign 4 |
| 410 | #define AMGf_unary 8 |
| 411 | #define AMGf_numeric 0x10 /* for Perl_try_amagic_bin */ |
| 412 | #define AMGf_set 0x20 /* for Perl_try_amagic_bin */ |
| 413 | |
| 414 | |
| 415 | /* do SvGETMAGIC on the stack args before checking for overload */ |
| 416 | |
| 417 | #define tryAMAGICun_MG(method, flags) STMT_START { \ |
| 418 | if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \ |
| 419 | && Perl_try_amagic_un(aTHX_ method, flags)) \ |
| 420 | return NORMAL; \ |
| 421 | } STMT_END |
| 422 | #define tryAMAGICbin_MG(method, flags) STMT_START { \ |
| 423 | if ( ((SvFLAGS(TOPm1s)|SvFLAGS(TOPs)) & (SVf_ROK|SVs_GMG)) \ |
| 424 | && Perl_try_amagic_bin(aTHX_ method, flags)) \ |
| 425 | return NORMAL; \ |
| 426 | } STMT_END |
| 427 | |
| 428 | #define AMG_CALLunary(sv,meth) \ |
| 429 | amagic_call(sv,&PL_sv_undef, meth, AMGf_noright | AMGf_unary) |
| 430 | |
| 431 | /* No longer used in core. Use AMG_CALLunary instead */ |
| 432 | #define AMG_CALLun(sv,meth) AMG_CALLunary(sv, CAT2(meth,_amg)) |
| 433 | |
| 434 | #define tryAMAGICunTARGET(meth, shift, jump) \ |
| 435 | STMT_START { \ |
| 436 | dATARGET; \ |
| 437 | dSP; \ |
| 438 | SV *tmpsv; \ |
| 439 | SV *arg= sp[shift]; \ |
| 440 | if (SvAMAGIC(arg) && \ |
| 441 | (tmpsv = amagic_call(arg, &PL_sv_undef, meth, \ |
| 442 | AMGf_noright | AMGf_unary))) { \ |
| 443 | SPAGAIN; \ |
| 444 | sp += shift; \ |
| 445 | sv_setsv(TARG, tmpsv); \ |
| 446 | if (opASSIGN) \ |
| 447 | sp--; \ |
| 448 | SETTARG; \ |
| 449 | PUTBACK; \ |
| 450 | if (jump) { \ |
| 451 | OP *jump_o = NORMAL->op_next; \ |
| 452 | while (jump_o->op_type == OP_NULL) \ |
| 453 | jump_o = jump_o->op_next; \ |
| 454 | assert(jump_o->op_type == OP_ENTERSUB); \ |
| 455 | PL_markstack_ptr--; \ |
| 456 | return jump_o->op_next; \ |
| 457 | } \ |
| 458 | return NORMAL; \ |
| 459 | } \ |
| 460 | } STMT_END |
| 461 | |
| 462 | /* This is no longer used anywhere in the core. You might wish to consider |
| 463 | calling amagic_deref_call() directly, as it has a cleaner interface. */ |
| 464 | #define tryAMAGICunDEREF(meth) \ |
| 465 | STMT_START { \ |
| 466 | sv = amagic_deref_call(*sp, CAT2(meth,_amg)); \ |
| 467 | SPAGAIN; \ |
| 468 | } STMT_END |
| 469 | |
| 470 | |
| 471 | #define opASSIGN (PL_op->op_flags & OPf_STACKED) |
| 472 | #define SETsv(sv) STMT_START { \ |
| 473 | if (opASSIGN || (SvFLAGS(TARG) & SVs_PADMY)) \ |
| 474 | { sv_setsv(TARG, (sv)); SETTARG; } \ |
| 475 | else SETs(sv); } STMT_END |
| 476 | |
| 477 | #define SETsvUN(sv) STMT_START { \ |
| 478 | if (SvFLAGS(TARG) & SVs_PADMY) \ |
| 479 | { sv_setsv(TARG, (sv)); SETTARG; } \ |
| 480 | else SETs(sv); } STMT_END |
| 481 | |
| 482 | /* |
| 483 | =for apidoc mU||LVRET |
| 484 | True if this op will be the return value of an lvalue subroutine |
| 485 | |
| 486 | =cut */ |
| 487 | #define LVRET ((PL_op->op_private & OPpMAYBE_LVSUB) && is_lvalue_sub()) |
| 488 | |
| 489 | #define SvCANEXISTDELETE(sv) \ |
| 490 | (!SvRMAGICAL(sv) \ |
| 491 | || ((mg = mg_find((const SV *) sv, PERL_MAGIC_tied)) \ |
| 492 | && (stash = SvSTASH(SvRV(SvTIED_obj(MUTABLE_SV(sv), mg)))) \ |
| 493 | && gv_fetchmethod_autoload(stash, "EXISTS", TRUE) \ |
| 494 | && gv_fetchmethod_autoload(stash, "DELETE", TRUE) \ |
| 495 | ) \ |
| 496 | ) |
| 497 | |
| 498 | #ifdef PERL_CORE |
| 499 | /* These are just for Perl_tied_method(), which is not part of the public API. |
| 500 | Use 0x04 rather than the next available bit, to help the compiler if the |
| 501 | architecture can generate more efficient instructions. */ |
| 502 | # define TIED_METHOD_MORTALIZE_NOT_NEEDED 0x04 |
| 503 | # define TIED_METHOD_ARGUMENTS_ON_STACK 0x08 |
| 504 | # define TIED_METHOD_SAY 0x10 |
| 505 | #endif |
| 506 | |
| 507 | /* |
| 508 | * Local variables: |
| 509 | * c-indentation-style: bsd |
| 510 | * c-basic-offset: 4 |
| 511 | * indent-tabs-mode: t |
| 512 | * End: |
| 513 | * |
| 514 | * ex: set ts=8 sts=4 sw=4 noet: |
| 515 | */ |