Problems with SKIP in makemaker
[p5sagit/p5-mst-13.2.git] / cop.h
diff --git a/cop.h b/cop.h
index 5a04e41..a569967 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.
@@ -42,21 +42,35 @@ struct block_sub {
 #define PUSHFORMAT(cx)                                                 \
        cx->blk_sub.cv = cv;                                            \
        cx->blk_sub.gv = gv;                                            \
+       cx->blk_sub.hasargs = 0;                                        \
        cx->blk_sub.dfoutgv = defoutgv;                                 \
-       cx->blk_sub.hasargs = 0;
+       (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 */
+
+#define POPSUB2()                                                      \
+       if (cxsub.hasargs) {                                            \
+           /* put back old @_ */                                       \
+           SvREFCNT_dec(GvAV(defgv));                                  \
+           GvAV(defgv) = cxsub.savearray;                              \
+           /* 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)                                                  \
-       defoutgv = cx->blk_sub.dfoutgv;
+       setdefout(cx->blk_sub.dfoutgv);                                 \
+       SvREFCNT_dec(cx->blk_sub.dfoutgv);
 
 /* eval context */
 struct block_eval {
@@ -64,13 +78,15 @@ struct block_eval {
     I32                old_op_type;
     char *     old_name;
     OP *       old_eval_root;
+    SV *       cur_text;
 };
 
 #define PUSHEVAL(cx,n,fgv)                                             \
        cx->blk_eval.old_in_eval = in_eval;                             \
        cx->blk_eval.old_op_type = op->op_type;                         \
        cx->blk_eval.old_name = n;                                      \
-       cx->blk_eval.old_eval_root = eval_root;
+       cx->blk_eval.old_eval_root = eval_root;                         \
+       cx->blk_eval.cur_text = linestr;
 
 #define POPEVAL(cx)                                                    \
        in_eval = cx->blk_eval.old_in_eval;                             \
@@ -86,6 +102,7 @@ struct block_loop {
     OP *       last_op;
     SV **      itervar;
     SV *       itersave;
+    SV *       iterlval;
     AV *       iterary;
     I32                iterix;
 };
@@ -96,14 +113,29 @@ 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;            \
-       if (cx->blk_loop.itervar)                                       \
-           *cx->blk_loop.itervar = cx->blk_loop.itersave;
+       { 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 {
@@ -142,7 +174,7 @@ 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). */
@@ -154,7 +186,7 @@ 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). */
@@ -169,7 +201,9 @@ 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;
@@ -177,11 +211,14 @@ struct subst {
     char *     sbu_m;
     char *     sbu_strend;
     char *     sbu_subbase;
+    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_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
@@ -189,18 +226,22 @@ struct subst {
 #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_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_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_rx               = rx,                                   \
        cx->cx_type             = CXt_SUBST
 
 #define POPSUBST(cx) cxstack_ix--
@@ -229,3 +270,4 @@ struct context {
 #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 */