cc_runtime.h

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