cc_runtime.h

   1 #define DOOP(ppname) PUTBACK; op = ppname(); 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 = &sv_undef;      \
  10             SP = MARK;                  \
  11         }                               \
  12    } while (0)
  13
  14 #define MAYBE_TAINT_SASSIGN_SRC(sv) \
  15     if (tainting && 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         stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;  \
  32         FREETMPS;               \
  33         oldsave = scopestack[scopestack_ix - 1]; \
  34         LEAVE_SCOPE(oldsave);   \
  35         SPAGAIN;                \
  36     } while(0)
  37
  38 #if PATCHLEVEL < 3
  39 #define RUN() run()
  40 #else
  41 #define RUN() runops()
  42 #endif
  43
  44 #if PATCHLEVEL > 3
  45 /* Anyone using eval "" deserves this mess */
  46 #define PP_EVAL(ppaddr, nxt) do {               \
  47         dJMPENV;                                \
  48         int ret;                                \
  49         PUTBACK;                                \
  50         JMPENV_PUSH(ret);                       \
  51         switch (ret) {                          \
  52         case 0:                                 \
  53             op = ppaddr();                      \
  54             retstack[retstack_ix - 1] = Nullop; \
  55             if (op != nxt) RUN();               \
  56             JMPENV_POP;                         \
  57             break;                              \
  58         case 1: JMPENV_POP; JMPENV_JUMP(1);     \
  59         case 2: JMPENV_POP; JMPENV_JUMP(2);     \
  60         case 3:                                 \
  61             JMPENV_POP;                         \
  62             if (restartop != nxt)               \
  63                 JMPENV_JUMP(3);                 \
  64         }                                       \
  65         op = nxt;                               \
  66         SPAGAIN;                                \
  67     } while (0)
  68
  69 #define PP_ENTERTRY(jmpbuf,label) do {          \
  70         dJMPENV;                                \
  71         int ret;                                \
  72         JMPENV_PUSH(ret);                       \
  73         switch (ret) {                          \
  74         case 1: JMPENV_POP; JMPENV_JUMP(1);     \
  75         case 2: JMPENV_POP; JMPENV_JUMP(2);     \
  76         case 3: JMPENV_POP; SPAGAIN; goto label;\
  77         }                                       \
  78     } while (0)
  79 #else
  80 /* Anyone using eval "" deserves this mess */
  81 #define PP_EVAL(ppaddr, nxt) do {               \
  82         Sigjmp_buf oldtop;                      \
  83         Copy(top_env,oldtop,1,Sigjmp_buf);      \
  84         PUTBACK;                                \
  85         switch (Sigsetjmp(top_env,1)) {         \
  86         case 0:                                 \
  87             op = ppaddr();                      \
  88             retstack[retstack_ix - 1] = Nullop; \
  89             Copy(oldtop,top_env,1,Sigjmp_buf);  \
  90             if (op != nxt) RUN();               \
  91             break;                              \
  92         case 1: Copy(oldtop,top_env,1,Sigjmp_buf); Siglongjmp(top_env,1); \
  93         case 2: Copy(oldtop,top_env,1,Sigjmp_buf); Siglongjmp(top_env,2); \
  94         case 3:                                 \
  95             Copy(oldtop,top_env,1,Sigjmp_buf);  \
  96             if (restartop != nxt)               \
  97                 Siglongjmp(top_env, 3);         \
  98         }                                       \
  99         op = nxt;                               \
 100         SPAGAIN;                                \
 101     } while (0)
 102
 103 #define PP_ENTERTRY(jmpbuf,label) do {          \
 104         Copy(top_env,jmpbuf,1,Sigjmp_buf);      \
 105         switch (Sigsetjmp(top_env,1)) {         \
 106         case 1: Copy(jmpbuf,top_env,1,Sigjmp_buf); Siglongjmp(top_env,1); \
 107         case 2: Copy(jmpbuf,top_env,1,Sigjmp_buf); Siglongjmp(top_env,2); \
 108         case 3: Copy(jmpbuf,top_env,1,Sigjmp_buf); SPAGAIN; goto label; \
 109         }                                       \
 110     } while (0)
 111 #endif