Run embed.pl and keywords.pl to complete RESTART -> INIT change
[p5sagit/p5-mst-13.2.git] / cop.h
diff --git a/cop.h b/cop.h
index b503309..f49bfaf 100644 (file)
--- a/cop.h
+++ b/cop.h
@@ -1,6 +1,6 @@
 /*    cop.h
  *
- *    Copyright (c) 1991-1994, Larry Wall
+ *    Copyright (c) 1991-1997, Larry Wall
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -28,7 +28,9 @@ struct block_sub {
     CV *       cv;
     GV *       gv;
     GV *       dfoutgv;
+#ifndef USE_THREADS
     AV *       savearray;
+#endif /* USE_THREADS */
     AV *       argarray;
     U16                olddepth;
     U8         hasargs;
@@ -47,13 +49,33 @@ struct block_sub {
        (void)SvREFCNT_inc(cx->blk_sub.dfoutgv)
 
 #define POPSUB(cx)                                                     \
-       if (cx->blk_sub.hasargs) {   /* put back old @_ */              \
-           GvAV(defgv) = cx->blk_sub.savearray;                        \
+       { struct block_sub cxsub;                                       \
+         POPSUB1(cx);                                                  \
+         POPSUB2(); }
+
+#define POPSUB1(cx)                                                    \
+       cxsub = cx->blk_sub;    /* because DESTROY may clobber *cx */
+
+#ifdef USE_THREADS
+#define POPSAVEARRAY() NOOP
+#else
+#define POPSAVEARRAY()                                                 \
+    STMT_START {                                                       \
+       SvREFCNT_dec(GvAV(defgv));                                      \
+       GvAV(defgv) = cxsub.savearray;                                  \
+    } STMT_END
+#endif /* USE_THREADS */
+
+#define POPSUB2()                                                      \
+       if (cxsub.hasargs) {                                            \
+           POPSAVEARRAY();                                             \
+           /* destroy arg array */                                     \
+           av_clear(cxsub.argarray);                                   \
+           AvREAL_off(cxsub.argarray);                                 \
        }                                                               \
-       if (cx->blk_sub.cv) {                                           \
-           if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) {    \
-               SvREFCNT_dec((SV*)cx->blk_sub.cv);                      \
-           }                                                           \
+       if (cxsub.cv) {                                                 \
+           if (!(CvDEPTH(cxsub.cv) = cxsub.olddepth))                  \
+               SvREFCNT_dec(cxsub.cv);                                 \
        }
 
 #define POPFORMAT(cx)                                                  \
@@ -90,6 +112,7 @@ struct block_loop {
     OP *       last_op;
     SV **      itervar;
     SV *       itersave;
+    SV *       iterlval;
     AV *       iterary;
     I32                iterix;
 };
@@ -100,12 +123,29 @@ struct block_loop {
        cx->blk_loop.redo_op = cLOOP->op_redoop;                        \
        cx->blk_loop.next_op = cLOOP->op_nextop;                        \
        cx->blk_loop.last_op = cLOOP->op_lastop;                        \
-       cx->blk_loop.itervar = ivar;                                    \
-       if (ivar)                                                       \
-           cx->blk_loop.itersave = *cx->blk_loop.itervar;
+       if (cx->blk_loop.itervar = (ivar))                              \
+           cx->blk_loop.itersave = SvREFCNT_inc(*cx->blk_loop.itervar);\
+       cx->blk_loop.iterlval = Nullsv;                                 \
+       cx->blk_loop.iterary = Nullav;                                  \
+       cx->blk_loop.iterix = -1;
 
 #define POPLOOP(cx)                                                    \
-       newsp           = stack_base + cx->blk_loop.resetsp;
+       { struct block_loop cxloop;                                     \
+         POPLOOP1(cx);                                                 \
+         POPLOOP2(); }
+
+#define POPLOOP1(cx)                                                   \
+       cxloop = cx->blk_loop;  /* because DESTROY may clobber *cx */   \
+       newsp = stack_base + cxloop.resetsp;
+
+#define POPLOOP2()                                                     \
+       SvREFCNT_dec(cxloop.iterlval);                                  \
+       if (cxloop.itervar) {                                           \
+           SvREFCNT_dec(*cxloop.itervar);                              \
+           *cxloop.itervar = cxloop.itersave;                          \
+       }                                                               \
+       if (cxloop.iterary && cxloop.iterary != curstack)               \
+           SvREFCNT_dec(cxloop.iterary);
 
 /* context common to subroutines, evals and loops */
 struct block {
@@ -144,7 +184,7 @@ struct block {
        cx->blk_oldretsp        = retstack_ix,                          \
        cx->blk_oldpm           = curpm,                                \
        cx->blk_gimme           = gimme;                                \
-       DEBUG_l( fprintf(stderr,"Entering block %ld, type %s\n",        \
+       DEBUG_l( PerlIO_printf(PerlIO_stderr(), "Entering block %ld, type %s\n",        \
                    (long)cxstack_ix, block_type[t]); )
 
 /* Exit a block (RETURN and LAST). */
@@ -156,7 +196,7 @@ struct block {
        retstack_ix     = cx->blk_oldretsp,                             \
        pm              = cx->blk_oldpm,                                \
        gimme           = cx->blk_gimme;                                \
-       DEBUG_l( fprintf(stderr,"Leaving block %ld, type %s\n",         \
+       DEBUG_l( PerlIO_printf(PerlIO_stderr(), "Leaving block %ld, type %s\n",         \
                    (long)cxstack_ix+1,block_type[cx->cx_type]); )
 
 /* Continue a block elsewhere (NEXT and REDO). */
@@ -171,47 +211,53 @@ struct subst {
     I32                sbu_iters;
     I32                sbu_maxiters;
     I32                sbu_safebase;
-    I32                sbu_once;
     I32                sbu_oldsave;
+    bool       sbu_once;
+    bool       sbu_rxtainted;
     char *     sbu_orig;
     SV *       sbu_dstr;
     SV *       sbu_targ;
     char *     sbu_s;
     char *     sbu_m;
     char *     sbu_strend;
-    char *     sbu_subbase;
+    void *     sbu_rxres;
     REGEXP *   sbu_rx;
 };
 #define sb_iters       cx_u.cx_subst.sbu_iters
 #define sb_maxiters    cx_u.cx_subst.sbu_maxiters
 #define sb_safebase    cx_u.cx_subst.sbu_safebase
-#define sb_once                cx_u.cx_subst.sbu_once
 #define sb_oldsave     cx_u.cx_subst.sbu_oldsave
+#define sb_once                cx_u.cx_subst.sbu_once
+#define sb_rxtainted   cx_u.cx_subst.sbu_rxtainted
 #define sb_orig                cx_u.cx_subst.sbu_orig
 #define sb_dstr                cx_u.cx_subst.sbu_dstr
 #define sb_targ                cx_u.cx_subst.sbu_targ
 #define sb_s           cx_u.cx_subst.sbu_s
 #define sb_m           cx_u.cx_subst.sbu_m
 #define sb_strend      cx_u.cx_subst.sbu_strend
-#define sb_subbase     cx_u.cx_subst.sbu_subbase
+#define sb_rxres       cx_u.cx_subst.sbu_rxres
 #define sb_rx          cx_u.cx_subst.sbu_rx
 
 #define PUSHSUBST(cx) CXINC, cx = &cxstack[cxstack_ix],                        \
        cx->sb_iters            = iters,                                \
        cx->sb_maxiters         = maxiters,                             \
        cx->sb_safebase         = safebase,                             \
-       cx->sb_once             = once,                                 \
        cx->sb_oldsave          = oldsave,                              \
+       cx->sb_once             = once,                                 \
+       cx->sb_rxtainted        = rxtainted,                            \
        cx->sb_orig             = orig,                                 \
        cx->sb_dstr             = dstr,                                 \
        cx->sb_targ             = targ,                                 \
        cx->sb_s                = s,                                    \
        cx->sb_m                = m,                                    \
        cx->sb_strend           = strend,                               \
+       cx->sb_rxres            = Null(void*),                          \
        cx->sb_rx               = rx,                                   \
-       cx->cx_type             = CXt_SUBST
+       cx->cx_type             = CXt_SUBST;                            \
+       rxres_save(&cx->sb_rxres, rx)
 
-#define POPSUBST(cx) cxstack_ix--
+#define POPSUBST(cx) cx = &cxstack[cxstack_ix--];                      \
+       rxres_free(&cx->sb_rxres)
 
 struct context {
     I32                cx_type;        /* what kind of context this is */
@@ -232,9 +278,10 @@ struct context {
 /* "gimme" values */
 #define G_SCALAR       0
 #define G_ARRAY                1
+#define G_VOID         128     /* skip this bit when adding flags below */
 
 /* extra flags for perl_call_* routines */
 #define G_DISCARD      2       /* Call FREETMPS. */
 #define G_EVAL         4       /* Assume eval {} around subroutine call. */
 #define G_NOARGS       8       /* Don't construct a @_ array. */
-#define G_KEEPERR      16      /* Append errors to $@ rather than overwriting it */
+#define G_KEEPERR      16      /* Append errors to $@, don't overwrite it */