| 1 | /* pp.h |
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| 2 | * |
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| 3 | * Copyright (c) 1991-1997, Larry Wall |
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| 4 | * |
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| 5 | * You may distribute under the terms of either the GNU General Public |
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| 6 | * License or the Artistic License, as specified in the README file. |
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| 7 | * |
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| 8 | */ |
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| 9 | |
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| 10 | #define ARGS |
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| 11 | #define ARGSproto void |
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| 12 | #define dARGS |
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| 13 | #define PP(s) OP* s(ARGS) dARGS |
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| 14 | |
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| 15 | #define SP sp |
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| 16 | #define MARK mark |
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| 17 | #define TARG targ |
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| 18 | |
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| 19 | #define PUSHMARK(p) if (++markstack_ptr == markstack_max) \ |
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| 20 | markstack_grow(); \ |
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| 21 | *markstack_ptr = (p) - stack_base |
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| 22 | |
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| 23 | #define TOPMARK (*markstack_ptr) |
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| 24 | #define POPMARK (*markstack_ptr--) |
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| 25 | |
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| 26 | #define dSP register SV **sp = stack_sp |
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| 27 | #define dMARK register SV **mark = stack_base + POPMARK |
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| 28 | #define dORIGMARK I32 origmark = mark - stack_base |
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| 29 | #define SETORIGMARK origmark = mark - stack_base |
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| 30 | #define ORIGMARK (stack_base + origmark) |
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| 31 | |
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| 32 | #define SPAGAIN sp = stack_sp |
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| 33 | #define MSPAGAIN sp = stack_sp; mark = ORIGMARK |
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| 34 | |
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| 35 | #define GETTARGETSTACKED targ = (op->op_flags & OPf_STACKED ? POPs : PAD_SV(op->op_targ)) |
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| 36 | #define dTARGETSTACKED SV * GETTARGETSTACKED |
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| 37 | |
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| 38 | #define GETTARGET targ = PAD_SV(op->op_targ) |
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| 39 | #define dTARGET SV * GETTARGET |
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| 40 | |
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| 41 | #define GETATARGET targ = (op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(op->op_targ)) |
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| 42 | #define dATARGET SV * GETATARGET |
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| 43 | |
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| 44 | #define dTARG SV *targ |
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| 45 | |
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| 46 | #define NORMAL op->op_next |
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| 47 | #define DIE return die |
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| 48 | |
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| 49 | #define PUTBACK stack_sp = sp |
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| 50 | #define RETURN return PUTBACK, NORMAL |
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| 51 | #define RETURNOP(o) return PUTBACK, o |
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| 52 | #define RETURNX(x) return x, PUTBACK, NORMAL |
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| 53 | |
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| 54 | #define POPs (*sp--) |
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| 55 | #define POPp (SvPVx(POPs, na)) |
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| 56 | #define POPn (SvNVx(POPs)) |
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| 57 | #define POPi ((IV)SvIVx(POPs)) |
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| 58 | #define POPu ((UV)SvUVx(POPs)) |
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| 59 | #define POPl ((long)SvIVx(POPs)) |
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| 60 | |
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| 61 | #define TOPs (*sp) |
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| 62 | #define TOPp (SvPV(TOPs, na)) |
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| 63 | #define TOPn (SvNV(TOPs)) |
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| 64 | #define TOPi ((IV)SvIV(TOPs)) |
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| 65 | #define TOPu ((UV)SvUV(TOPs)) |
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| 66 | #define TOPl ((long)SvIV(TOPs)) |
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| 67 | |
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| 68 | /* Go to some pains in the rare event that we must extend the stack. */ |
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| 69 | #define EXTEND(p,n) STMT_START { if (stack_max - p < (n)) { \ |
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| 70 | sp = stack_grow(sp,p, (int) (n)); \ |
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| 71 | } } STMT_END |
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| 72 | |
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| 73 | /* Same thing, but update mark register too. */ |
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| 74 | #define MEXTEND(p,n) STMT_START {if (stack_max - p < (n)) { \ |
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| 75 | int markoff = mark - stack_base; \ |
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| 76 | sp = stack_grow(sp,p,(int) (n)); \ |
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| 77 | mark = stack_base + markoff; \ |
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| 78 | } } STMT_END |
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| 79 | |
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| 80 | #define PUSHs(s) (*++sp = (s)) |
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| 81 | #define PUSHTARG STMT_START { SvSETMAGIC(TARG); PUSHs(TARG); } STMT_END |
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| 82 | #define PUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); PUSHTARG; } STMT_END |
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| 83 | #define PUSHn(n) STMT_START { sv_setnv(TARG, (double)(n)); PUSHTARG; } STMT_END |
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| 84 | #define PUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); PUSHTARG; } STMT_END |
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| 85 | #define PUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG; } STMT_END |
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| 86 | |
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| 87 | #define XPUSHs(s) STMT_START { EXTEND(sp,1); (*++sp = (s)); } STMT_END |
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| 88 | #define XPUSHTARG STMT_START { SvSETMAGIC(TARG); XPUSHs(TARG); } STMT_END |
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| 89 | #define XPUSHp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } STMT_END |
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| 90 | #define XPUSHn(n) STMT_START { sv_setnv(TARG, (double)(n)); XPUSHTARG; } STMT_END |
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| 91 | #define XPUSHi(i) STMT_START { sv_setiv(TARG, (IV)(i)); XPUSHTARG; } STMT_END |
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| 92 | #define XPUSHu(u) STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END |
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| 93 | |
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| 94 | #define SETs(s) (*sp = s) |
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| 95 | #define SETTARG STMT_START { SvSETMAGIC(TARG); SETs(TARG); } STMT_END |
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| 96 | #define SETp(p,l) STMT_START { sv_setpvn(TARG, (p), (l)); SETTARG; } STMT_END |
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| 97 | #define SETn(n) STMT_START { sv_setnv(TARG, (double)(n)); SETTARG; } STMT_END |
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| 98 | #define SETi(i) STMT_START { sv_setiv(TARG, (IV)(i)); SETTARG; } STMT_END |
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| 99 | #define SETu(u) STMT_START { sv_setuv(TARG, (UV)(u)); SETTARG; } STMT_END |
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| 100 | |
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| 101 | #define dTOPss SV *sv = TOPs |
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| 102 | #define dPOPss SV *sv = POPs |
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| 103 | #define dTOPnv double value = TOPn |
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| 104 | #define dPOPnv double value = POPn |
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| 105 | #define dTOPiv IV value = TOPi |
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| 106 | #define dPOPiv IV value = POPi |
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| 107 | #define dTOPuv UV value = TOPu |
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| 108 | #define dPOPuv UV value = POPu |
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| 109 | |
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| 110 | #define dPOPXssrl(X) SV *right = POPs; SV *left = CAT2(X,s) |
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| 111 | #define dPOPXnnrl(X) double right = POPn; double left = CAT2(X,n) |
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| 112 | #define dPOPXiirl(X) IV right = POPi; IV left = CAT2(X,i) |
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| 113 | |
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| 114 | #define USE_LEFT(sv) \ |
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| 115 | (SvOK(sv) || SvGMAGICAL(sv) || !(op->op_flags & OPf_STACKED)) |
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| 116 | #define dPOPXnnrl_ul(X) \ |
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| 117 | double right = POPn; \ |
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| 118 | SV *leftsv = CAT2(X,s); \ |
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| 119 | double left = USE_LEFT(leftsv) ? SvNV(leftsv) : 0.0 |
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| 120 | #define dPOPXiirl_ul(X) \ |
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| 121 | IV right = POPi; \ |
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| 122 | SV *leftsv = CAT2(X,s); \ |
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| 123 | IV left = USE_LEFT(leftsv) ? SvIV(leftsv) : 0 |
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| 124 | |
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| 125 | #define dPOPPOPssrl dPOPXssrl(POP) |
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| 126 | #define dPOPPOPnnrl dPOPXnnrl(POP) |
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| 127 | #define dPOPPOPnnrl_ul dPOPXnnrl_ul(POP) |
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| 128 | #define dPOPPOPiirl dPOPXiirl(POP) |
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| 129 | #define dPOPPOPiirl_ul dPOPXiirl_ul(POP) |
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| 130 | |
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| 131 | #define dPOPTOPssrl dPOPXssrl(TOP) |
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| 132 | #define dPOPTOPnnrl dPOPXnnrl(TOP) |
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| 133 | #define dPOPTOPnnrl_ul dPOPXnnrl_ul(TOP) |
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| 134 | #define dPOPTOPiirl dPOPXiirl(TOP) |
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| 135 | #define dPOPTOPiirl_ul dPOPXiirl_ul(TOP) |
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| 136 | |
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| 137 | #define RETPUSHYES RETURNX(PUSHs(&sv_yes)) |
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| 138 | #define RETPUSHNO RETURNX(PUSHs(&sv_no)) |
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| 139 | #define RETPUSHUNDEF RETURNX(PUSHs(&sv_undef)) |
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| 140 | |
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| 141 | #define RETSETYES RETURNX(SETs(&sv_yes)) |
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| 142 | #define RETSETNO RETURNX(SETs(&sv_no)) |
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| 143 | #define RETSETUNDEF RETURNX(SETs(&sv_undef)) |
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| 144 | |
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| 145 | #define ARGTARG op->op_targ |
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| 146 | #define MAXARG op->op_private |
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| 147 | |
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| 148 | #define SWITCHSTACK(f,t) AvFILL(f) = sp - stack_base; \ |
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| 149 | stack_base = AvARRAY(t); \ |
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| 150 | stack_max = stack_base + AvMAX(t); \ |
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| 151 | sp = stack_sp = stack_base + AvFILL(t); \ |
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| 152 | curstack = t; |
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| 153 | |
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| 154 | #define EXTEND_MORTAL(n) \ |
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| 155 | STMT_START { \ |
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| 156 | if (tmps_ix + (n) >= tmps_max) \ |
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| 157 | Renew(tmps_stack, tmps_max = tmps_ix + (n) + 1, SV*); \ |
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| 158 | } STMT_END |
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| 159 | |
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| 160 | #ifdef OVERLOAD |
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| 161 | |
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| 162 | #define AMGf_noright 1 |
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| 163 | #define AMGf_noleft 2 |
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| 164 | #define AMGf_assign 4 |
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| 165 | #define AMGf_unary 8 |
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| 166 | |
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| 167 | #define tryAMAGICbinW(meth,assign,set) STMT_START { \ |
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| 168 | if (amagic_generation) { \ |
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| 169 | SV* tmpsv; \ |
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| 170 | SV* right= *(sp); SV* left= *(sp-1);\ |
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| 171 | if ((SvAMAGIC(left)||SvAMAGIC(right))&&\ |
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| 172 | (tmpsv=amagic_call(left, \ |
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| 173 | right, \ |
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| 174 | CAT2(meth,_amg), \ |
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| 175 | (assign)? AMGf_assign: 0))) {\ |
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| 176 | SPAGAIN; \ |
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| 177 | (void)POPs; set(tmpsv); RETURN; } \ |
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| 178 | } \ |
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| 179 | } STMT_END |
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| 180 | |
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| 181 | #define tryAMAGICbin(meth,assign) tryAMAGICbinW(meth,assign,SETsv) |
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| 182 | #define tryAMAGICbinSET(meth,assign) tryAMAGICbinW(meth,assign,SETs) |
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| 183 | |
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| 184 | #define AMG_CALLun(sv,meth) amagic_call(sv,&sv_undef, \ |
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| 185 | CAT2(meth,_amg),AMGf_noright | AMGf_unary) |
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| 186 | #define AMG_CALLbinL(left,right,meth) \ |
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| 187 | amagic_call(left,right,CAT2(meth,_amg),AMGf_noright) |
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| 188 | |
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| 189 | #define tryAMAGICunW(meth,set) STMT_START { \ |
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| 190 | if (amagic_generation) { \ |
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| 191 | SV* tmpsv; \ |
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| 192 | SV* arg= *(sp); \ |
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| 193 | if ((SvAMAGIC(arg))&&\ |
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| 194 | (tmpsv=AMG_CALLun(arg,meth))) {\ |
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| 195 | SPAGAIN; \ |
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| 196 | set(tmpsv); RETURN; } \ |
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| 197 | } \ |
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| 198 | } STMT_END |
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| 199 | |
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| 200 | #define tryAMAGICun tryAMAGICunSET |
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| 201 | #define tryAMAGICunSET(meth) tryAMAGICunW(meth,SETs) |
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| 202 | |
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| 203 | #define opASSIGN (op->op_flags & OPf_STACKED) |
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| 204 | #define SETsv(sv) STMT_START { \ |
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| 205 | if (opASSIGN) { sv_setsv(TARG, (sv)); SETTARG; } \ |
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| 206 | else SETs(sv); } STMT_END |
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| 207 | |
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| 208 | /* newSVsv does not behave as advertised, so we copy missing |
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| 209 | * information by hand */ |
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| 210 | |
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| 211 | |
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| 212 | #define RvDEEPCP(rv) STMT_START { SV* ref=SvRV(rv); \ |
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| 213 | if (SvREFCNT(ref)>1) { \ |
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| 214 | SvREFCNT_dec(ref); \ |
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| 215 | SvRV(rv)=AMG_CALLun(rv,copy); \ |
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| 216 | } } STMT_END |
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| 217 | #else |
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| 218 | |
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| 219 | #define tryAMAGICbin(a,b) |
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| 220 | #define tryAMAGICbinSET(a,b) |
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| 221 | #define tryAMAGICun(a) |
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| 222 | #define tryAMAGICunSET(a) |
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| 223 | |
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| 224 | #endif /* OVERLOAD */ |
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