Include vim/emacs modelines in generated files to open them

[perl5.git] / run.c

diff --git a/run.c b/run.c
index 702a9b9..95bc676 100644 (file)
--- a/run.c
+++ b/run.c
@@ -1,12 +1,26 @@
 /*    run.c
  *
- *    Copyright (c) 1991-2001, Larry Wall
+ *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ *    2000, 2001, by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
  *
  */
 
+/* This file contains the main Perl opcode execution loop. It just
+ * calls the pp_foo() function associated with each op, and expects that
+ * function to return a pointer to the next op to be executed, or null if
+ * it's the end of the sub or program or whatever.
+ *
+ * There is a similar loop in dump.c, Perl_runops_debug(), which does
+ * the same, but also checks for various debug flags each time round the
+ * loop.
+ *
+ * Why this function requires a file all of its own is anybody's guess.
+ * DAPM.
+ */
+
 #include "EXTERN.h"
 #define PERL_IN_RUN_C
 #include "perl.h"
@@ -28,140 +42,12 @@ Perl_runops_standard(pTHX)
     return 0;
 }
 
-int
-Perl_runops_debug(pTHX)
-{
-#ifdef DEBUGGING
-    if (!PL_op) {
-       if (ckWARN_d(WARN_DEBUGGING))
-           Perl_warner(aTHX_ WARN_DEBUGGING, "NULL OP IN RUN");
-       return 0;
-    }
-
-    do {
-       PERL_ASYNC_CHECK();
-       if (PL_debug) {
-           if (PL_watchaddr != 0 && *PL_watchaddr != PL_watchok)
-               PerlIO_printf(Perl_debug_log,
-                             "WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n",
-                             PTR2UV(PL_watchaddr), PTR2UV(PL_watchok),
-                             PTR2UV(*PL_watchaddr));
-           DEBUG_s(debstack());
-           DEBUG_t(debop(PL_op));
-           DEBUG_P(debprof(PL_op));
-       }
-    } while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX)));
-
-    TAINT_NOT;
-    return 0;
-#else
-    return runops_standard();
-#endif /* DEBUGGING */
-}
-
-I32
-Perl_debop(pTHX_ OP *o)
-{
-#ifdef DEBUGGING
-    AV *padlist, *comppad;
-    CV *cv;
-    SV *sv;
-    STRLEN n_a;
-    Perl_deb(aTHX_ "%s", PL_op_name[o->op_type]);
-    switch (o->op_type) {
-    case OP_CONST:
-       PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv));
-       break;
-    case OP_GVSV:
-    case OP_GV:
-       if (cGVOPo_gv) {
-           sv = NEWSV(0,0);
-           gv_fullname3(sv, cGVOPo_gv, Nullch);
-           PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, n_a));
-           SvREFCNT_dec(sv);
-       }
-       else
-           PerlIO_printf(Perl_debug_log, "(NULL)");
-       break;
-    case OP_PADSV:
-    case OP_PADAV:
-    case OP_PADHV:
-       /* print the lexical's name */
-        cv = deb_curcv(cxstack_ix);
-        if (cv) {
-            padlist = CvPADLIST(cv);
-            comppad = (AV*)(*av_fetch(padlist, 0, FALSE));
-            sv = *av_fetch(comppad, o->op_targ, FALSE);
-        } else
-            sv = Nullsv;
-        if (sv)
-           PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen(sv));
-        else
-           PerlIO_printf(Perl_debug_log, "[%"UVuf"]", (UV)o->op_targ);
-        break;
-    default:
-       break;
-    }
-    PerlIO_printf(Perl_debug_log, "\n");
-#endif /* DEBUGGING */
-    return 0;
-}
-
-STATIC CV*
-S_deb_curcv(I32 ix)
-{
-#ifdef DEBUGGING
-    PERL_CONTEXT *cx = &cxstack[ix];
-    if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT)
-        return cx->blk_sub.cv;
-    else if (CxTYPE(cx) == CXt_EVAL && CxREALEVAL(cx))
-        return PL_compcv;
-    else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx))
-        return PL_compcv;
-    else if (ix == 0 && PL_curstackinfo->si_type == PERLSI_MAIN)
-        return PL_main_cv;
-    else if (ix <= 0)
-        return Nullcv;
-    else
-        return deb_curcv(ix - 1);
-#else
-    return Nullcv;
-#endif  /* DEBUGGING */
-}
-
-void
-Perl_watch(pTHX_ char **addr)
-{
-#ifdef DEBUGGING
-    PL_watchaddr = addr;
-    PL_watchok = *addr;
-    PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n",
-       PTR2UV(PL_watchaddr), PTR2UV(PL_watchok));
-#endif /* DEBUGGING */
-}
-
-STATIC void
-S_debprof(pTHX_ OP *o)
-{
-#ifdef DEBUGGING
-    if (!PL_profiledata)
-       Newz(000, PL_profiledata, MAXO, U32);
-    ++PL_profiledata[o->op_type];
-#endif /* DEBUGGING */
-}
-
-void
-Perl_debprofdump(pTHX)
-{
-#ifdef DEBUGGING
-    unsigned i;
-    if (!PL_profiledata)
-       return;
-    for (i = 0; i < MAXO; i++) {
-       if (PL_profiledata[i])
-           PerlIO_printf(Perl_debug_log,
-                         "%5lu %s\n", (unsigned long)PL_profiledata[i],
-                                       PL_op_name[i]);
-    }
-#endif /* DEBUGGING */
-}
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */