cc_runtime.h

   1 #define DOOP(ppname) PUTBACK; PL_op = ppname(aTHX); SPAGAIN
   2 #define CCPP(s)   OP * s(pTHX)
   3
   4 #define PP_LIST(g) do {                 \
   5         dMARK;                          \
   6         if (g != G_ARRAY) {             \
   7             if (++MARK <= SP)           \
   8                 *MARK = *SP;            \
   9             else                        \
  10                 *MARK = &PL_sv_undef;   \
  11             SP = MARK;                  \
  12         }                               \
  13    } while (0)
  14
  15 #define MAYBE_TAINT_SASSIGN_SRC(sv) \
  16     if (PL_tainting && PL_tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) || \
  17                                 !((mg=mg_find(left, 't')) && mg->mg_len & 1)))\
  18         TAINT_NOT
  19
  20 #define PP_PREINC(sv) do {      \
  21         if (SvIOK(sv)) {        \
  22             ++SvIVX(sv);        \
  23             SvFLAGS(sv) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK); \
  24         }                       \
  25         else                    \
  26             sv_inc(sv);         \
  27         SvSETMAGIC(sv);         \
  28     } while (0)
  29
  30 #define PP_UNSTACK do {         \
  31         TAINT_NOT;              \
  32         PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp;    \
  33         FREETMPS;               \
  34         oldsave = PL_scopestack[PL_scopestack_ix - 1]; \
  35         LEAVE_SCOPE(oldsave);   \
  36         SPAGAIN;                \
  37     } while(0)
  38
  39 /* Anyone using eval "" deserves this mess */
  40 #define PP_EVAL(ppaddr, nxt) do {               \
  41         dJMPENV;                                \
  42         int ret;                                \
  43         PUTBACK;                                \
  44         JMPENV_PUSH(ret);                       \
  45         switch (ret) {                          \
  46         case 0:                                 \
  47             PL_op = ppaddr(aTHX);               \
  48             PL_retstack[PL_retstack_ix - 1] = Nullop;   \
  49             if (PL_op != nxt) CALLRUNOPS();             \
  50             JMPENV_POP;                         \
  51             break;                              \
  52         case 1: JMPENV_POP; JMPENV_JUMP(1);     \
  53         case 2: JMPENV_POP; JMPENV_JUMP(2);     \
  54         case 3:                                 \
  55             JMPENV_POP;                         \
  56             if (PL_restartop && PL_restartop != nxt)            \
  57                 JMPENV_JUMP(3);                 \
  58         }                                       \
  59         PL_op = nxt;                            \
  60         SPAGAIN;                                \
  61     } while (0)
  62
  63
  64 #define PP_ENTERTRY(jmpbuf,label)  \
  65         STMT_START {                    \
  66                 int ret;                \
  67                 JMPENV_PUSH_ENV(jmpbuf,ret);                    \
  68                 switch (ret) {                          \
  69                         case 1: JMPENV_POP_ENV(jmpbuf); JMPENV_JUMP(1);\
  70                         case 2: JMPENV_POP_ENV(jmpbuf); JMPENV_JUMP(2);\
  71                         case 3: JMPENV_POP_ENV(jmpbuf); SPAGAIN; goto label;\
  72                 }                                       \
  73         } STMT_END
  74 #define PP_LEAVETRY \
  75         STMT_START{ PL_top_env=PL_top_env->je_prev; }STMT_END