/* op.c
*
- * Copyright (c) 1991-2000, Larry Wall
+ * Copyright (c) 1991-2001, 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.
* either way, as the saying is, if you follow me." --the Gaffer
*/
+
#include "EXTERN.h"
#define PERL_IN_OP_C
#include "perl.h"
#include "keywords.h"
-/* #define PL_OP_SLAB_ALLOC */
+#define CALL_PEEP(o) CALL_FPTR(PL_peepp)(aTHX_ o)
-#ifdef PL_OP_SLAB_ALLOC
-#define SLAB_SIZE 8192
-static char *PL_OpPtr = NULL;
-static int PL_OpSpace = 0;
-#define NewOp(m,var,c,type) do { if ((PL_OpSpace -= c*sizeof(type)) >= 0) \
- var = (type *)(PL_OpPtr -= c*sizeof(type)); \
- else \
- var = (type *) Slab_Alloc(m,c*sizeof(type)); \
- } while (0)
+#if defined(PL_OP_SLAB_ALLOC)
+
+#ifndef PERL_SLAB_SIZE
+#define PERL_SLAB_SIZE 2048
+#endif
+
+#define NewOp(m,var,c,type) \
+ STMT_START { var = (type *) Slab_Alloc(m,c*sizeof(type)); } STMT_END
+
+#define FreeOp(p) Slab_Free(p)
STATIC void *
S_Slab_Alloc(pTHX_ int m, size_t sz)
{
- Newz(m,PL_OpPtr,SLAB_SIZE,char);
- PL_OpSpace = SLAB_SIZE - sz;
- return PL_OpPtr += PL_OpSpace;
+ /*
+ * To make incrementing use count easy PL_OpSlab is an I32 *
+ * To make inserting the link to slab PL_OpPtr is I32 **
+ * So compute size in units of sizeof(I32 *) as that is how Pl_OpPtr increments
+ * Add an overhead for pointer to slab and round up as a number of pointers
+ */
+ sz = (sz + 2*sizeof(I32 *) -1)/sizeof(I32 *);
+ if ((PL_OpSpace -= sz) < 0) {
+ PL_OpPtr = (I32 **) PerlMemShared_malloc(PERL_SLAB_SIZE*sizeof(I32*));
+ if (!PL_OpPtr) {
+ return NULL;
+ }
+ Zero(PL_OpPtr,PERL_SLAB_SIZE,I32 **);
+ /* We reserve the 0'th I32 sized chunk as a use count */
+ PL_OpSlab = (I32 *) PL_OpPtr;
+ /* Reduce size by the use count word, and by the size we need.
+ * Latter is to mimic the '-=' in the if() above
+ */
+ PL_OpSpace = PERL_SLAB_SIZE - (sizeof(I32)+sizeof(I32 **)-1)/sizeof(I32 **) - sz;
+ /* Allocation pointer starts at the top.
+ Theory: because we build leaves before trunk allocating at end
+ means that at run time access is cache friendly upward
+ */
+ PL_OpPtr += PERL_SLAB_SIZE;
+ }
+ assert( PL_OpSpace >= 0 );
+ /* Move the allocation pointer down */
+ PL_OpPtr -= sz;
+ assert( PL_OpPtr > (I32 **) PL_OpSlab );
+ *PL_OpPtr = PL_OpSlab; /* Note which slab it belongs to */
+ (*PL_OpSlab)++; /* Increment use count of slab */
+ assert( PL_OpPtr+sz <= ((I32 **) PL_OpSlab + PERL_SLAB_SIZE) );
+ assert( *PL_OpSlab > 0 );
+ return (void *)(PL_OpPtr + 1);
+}
+
+STATIC void
+S_Slab_Free(pTHX_ void *op)
+{
+ I32 **ptr = (I32 **) op;
+ I32 *slab = ptr[-1];
+ assert( ptr-1 > (I32 **) slab );
+ assert( ptr < ( (I32 **) slab + PERL_SLAB_SIZE) );
+ assert( *slab > 0 );
+ if (--(*slab) == 0) {
+ PerlMemShared_free(slab);
+ if (slab == PL_OpSlab) {
+ PL_OpSpace = 0;
+ }
+ }
}
#else
#define NewOp(m, var, c, type) Newz(m, var, c, type)
+#define FreeOp(p) Safefree(p)
#endif
/*
* In the following definition, the ", Nullop" is just to make the compiler
: CALL_FPTR(PL_check[type])(aTHX_ (OP*)o))
#define PAD_MAX 999999999
+#define RETURN_UNLIMITED_NUMBER (PERL_INT_MAX / 2)
STATIC char*
S_gv_ename(pTHX_ GV *gv)
S_no_fh_allowed(pTHX_ OP *o)
{
yyerror(Perl_form(aTHX_ "Missing comma after first argument to %s function",
- PL_op_desc[o->op_type]));
+ OP_DESC(o)));
return o;
}
S_bad_type(pTHX_ I32 n, char *t, char *name, OP *kid)
{
yyerror(Perl_form(aTHX_ "Type of arg %d to %s must be %s (not %s)",
- (int)n, name, t, PL_op_desc[kid->op_type]));
+ (int)n, name, t, OP_DESC(kid)));
}
STATIC void
PADOFFSET
Perl_pad_allocmy(pTHX_ char *name)
{
- dTHR;
PADOFFSET off;
SV *sv;
if (!(PL_in_my == KEY_our ||
isALPHA(name[1]) ||
- (PL_hints & HINT_UTF8 && (name[1] & 0xc0) == 0xc0) ||
+ (USE_UTF8_IN_NAMES && UTF8_IS_START(name[1])) ||
(name[1] == '_' && (int)strlen(name) > 2)))
{
if (!isPRINT(name[1]) || strchr("\t\n\r\f", name[1])) {
if (*name != '$')
yyerror(Perl_form(aTHX_ "Can't declare class for non-scalar %s in \"%s\"",
name, PL_in_my == KEY_our ? "our" : "my"));
- SvOBJECT_on(sv);
+ SvFLAGS(sv) |= SVpad_TYPED;
(void)SvUPGRADE(sv, SVt_PVMG);
SvSTASH(sv) = (HV*)SvREFCNT_inc(PL_in_my_stash);
- PL_sv_objcount++;
}
if (PL_in_my == KEY_our) {
(void)SvUPGRADE(sv, SVt_PVGV);
(void)SvUPGRADE(namesv, SVt_PVGV);
GvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)GvSTASH(proto_namesv));
}
- if (SvOBJECT(proto_namesv)) { /* A typed var */
- SvOBJECT_on(namesv);
+ if (SvFLAGS(proto_namesv) & SVpad_TYPED) { /* A typed lexical */
+ SvFLAGS(namesv) |= SVpad_TYPED;
(void)SvUPGRADE(namesv, SVt_PVMG);
SvSTASH(namesv) = (HV*)SvREFCNT_inc((SV*)SvSTASH(proto_namesv));
- PL_sv_objcount++;
}
return newoff;
}
S_pad_findlex(pTHX_ char *name, PADOFFSET newoff, U32 seq, CV* startcv,
I32 cx_ix, I32 saweval, U32 flags)
{
- dTHR;
CV *cv;
I32 off;
SV *sv;
switch (CxTYPE(cx)) {
default:
if (i == 0 && saweval) {
- seq = cxstack[saweval].blk_oldcop->cop_seq;
return pad_findlex(name, newoff, seq, PL_main_cv, -1, saweval, 0);
}
break;
case CXt_EVAL:
switch (cx->blk_eval.old_op_type) {
case OP_ENTEREVAL:
- if (CxREALEVAL(cx))
+ if (CxREALEVAL(cx)) {
+ PADOFFSET off;
saweval = i;
+ seq = cxstack[i].blk_oldcop->cop_seq;
+ startcv = cxstack[i].blk_eval.cv;
+ if (startcv && CvOUTSIDE(startcv)) {
+ off = pad_findlex(name, newoff, seq, CvOUTSIDE(startcv),
+ i-1, saweval, 0);
+ if (off) /* continue looking if not found here */
+ return off;
+ }
+ }
break;
case OP_DOFILE:
case OP_REQUIRE:
cv = cx->blk_sub.cv;
if (PL_debstash && CvSTASH(cv) == PL_debstash) { /* ignore DB'* scope */
saweval = i; /* so we know where we were called from */
+ seq = cxstack[i].blk_oldcop->cop_seq;
continue;
}
- seq = cxstack[saweval].blk_oldcop->cop_seq;
return pad_findlex(name, newoff, seq, cv, i-1, saweval,FINDLEX_NOSEARCH);
}
}
PADOFFSET
Perl_pad_findmy(pTHX_ char *name)
{
- dTHR;
I32 off;
I32 pendoff = 0;
SV *sv;
PERL_CONTEXT *cx;
CV *outside;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
/*
* Special case to get lexical (and hence per-thread) @_.
* XXX I need to find out how to tell at parse-time whether use
*/
if (strEQ(name, "@_"))
return 0; /* success. (NOT_IN_PAD indicates failure) */
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
/* The one we're looking for is probably just before comppad_name_fill. */
for (off = AvFILLp(PL_comppad_name); off > 0; off--) {
void
Perl_pad_leavemy(pTHX_ I32 fill)
{
- dTHR;
I32 off;
SV **svp = AvARRAY(PL_comppad_name);
SV *sv;
PADOFFSET
Perl_pad_alloc(pTHX_ I32 optype, U32 tmptype)
{
- dTHR;
SV *sv;
I32 retval;
}
SvFLAGS(sv) |= tmptype;
PL_curpad = AvARRAY(PL_comppad);
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
DEBUG_X(PerlIO_printf(Perl_debug_log,
"0x%"UVxf" Pad 0x%"UVxf" alloc %ld for %s\n",
PTR2UV(thr), PTR2UV(PL_curpad),
"Pad 0x%"UVxf" alloc %ld for %s\n",
PTR2UV(PL_curpad),
(long) retval, PL_op_name[optype]));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
return (PADOFFSET)retval;
}
SV *
Perl_pad_sv(pTHX_ PADOFFSET po)
{
- dTHR;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
DEBUG_X(PerlIO_printf(Perl_debug_log,
"0x%"UVxf" Pad 0x%"UVxf" sv %"IVdf"\n",
PTR2UV(thr), PTR2UV(PL_curpad), (IV)po));
Perl_croak(aTHX_ "panic: pad_sv po");
DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" sv %"IVdf"\n",
PTR2UV(PL_curpad), (IV)po));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
return PL_curpad[po]; /* eventually we'll turn this into a macro */
}
void
Perl_pad_free(pTHX_ PADOFFSET po)
{
- dTHR;
if (!PL_curpad)
return;
if (AvARRAY(PL_comppad) != PL_curpad)
Perl_croak(aTHX_ "panic: pad_free curpad");
if (!po)
Perl_croak(aTHX_ "panic: pad_free po");
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
DEBUG_X(PerlIO_printf(Perl_debug_log,
"0x%"UVxf" Pad 0x%"UVxf" free %"IVdf"\n",
PTR2UV(thr), PTR2UV(PL_curpad), (IV)po));
#else
DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" free %"IVdf"\n",
PTR2UV(PL_curpad), (IV)po));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
if (PL_curpad[po] && PL_curpad[po] != &PL_sv_undef) {
SvPADTMP_off(PL_curpad[po]);
#ifdef USE_ITHREADS
void
Perl_pad_swipe(pTHX_ PADOFFSET po)
{
- dTHR;
if (AvARRAY(PL_comppad) != PL_curpad)
Perl_croak(aTHX_ "panic: pad_swipe curpad");
if (!po)
Perl_croak(aTHX_ "panic: pad_swipe po");
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
DEBUG_X(PerlIO_printf(Perl_debug_log,
"0x%"UVxf" Pad 0x%"UVxf" swipe %"IVdf"\n",
PTR2UV(thr), PTR2UV(PL_curpad), (IV)po));
#else
DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" swipe %"IVdf"\n",
PTR2UV(PL_curpad), (IV)po));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
SvPADTMP_off(PL_curpad[po]);
PL_curpad[po] = NEWSV(1107,0);
SvPADTMP_on(PL_curpad[po]);
Perl_pad_reset(pTHX)
{
#ifdef USE_BROKEN_PAD_RESET
- dTHR;
register I32 po;
if (AvARRAY(PL_comppad) != PL_curpad)
Perl_croak(aTHX_ "panic: pad_reset curpad");
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
DEBUG_X(PerlIO_printf(Perl_debug_log,
"0x%"UVxf" Pad 0x%"UVxf" reset\n",
PTR2UV(thr), PTR2UV(PL_curpad)));
#else
DEBUG_X(PerlIO_printf(Perl_debug_log, "Pad 0x%"UVxf" reset\n",
PTR2UV(PL_curpad)));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
if (!PL_tainting) { /* Can't mix tainted and non-tainted temporaries. */
for (po = AvMAX(PL_comppad); po > PL_padix_floor; po--) {
if (PL_curpad[po] && !SvIMMORTAL(PL_curpad[po]))
PL_pad_reset_pending = FALSE;
}
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
/* find_threadsv is not reentrant */
PADOFFSET
Perl_find_threadsv(pTHX_ const char *name)
{
- dTHR;
char *p;
PADOFFSET key;
SV **svp;
break;
case ';':
sv_setpv(sv, "\034");
- sv_magic(sv, 0, 0, name, 1);
+ sv_magic(sv, 0, PERL_MAGIC_sv, name, 1);
break;
case '&':
case '`':
/* case '!': */
default:
- sv_magic(sv, 0, 0, name, 1);
+ sv_magic(sv, 0, PERL_MAGIC_sv, name, 1);
}
DEBUG_S(PerlIO_printf(Perl_error_log,
"find_threadsv: new SV %p for $%s%c\n",
}
return key;
}
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
/* Destructor */
cop_free((COP*)o);
op_clear(o);
-
-#ifdef PL_OP_SLAB_ALLOC
- if ((char *) o == PL_OpPtr)
- {
- }
-#else
- Safefree(o);
-#endif
+ FreeOp(o);
}
-STATIC void
-S_op_clear(pTHX_ OP *o)
+void
+Perl_op_clear(pTHX_ OP *o)
{
+
switch (o->op_type) {
case OP_NULL: /* Was holding old type, if any. */
case OP_ENTEREVAL: /* Was holding hints. */
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
case OP_THREADSV: /* Was holding index into thr->threadsv AV. */
#endif
o->op_targ = 0;
break;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
case OP_ENTERITER:
if (!(o->op_flags & OPf_SPECIAL))
break;
/* FALL THROUGH */
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
default:
if (!(o->op_flags & OPf_REF)
|| (PL_check[o->op_type] != MEMBER_TO_FPTR(Perl_ck_ftst)))
goto clear_pmop;
case OP_PUSHRE:
#ifdef USE_ITHREADS
- if ((PADOFFSET)cPMOPo->op_pmreplroot) {
+ if (INT2PTR(PADOFFSET, cPMOPo->op_pmreplroot)) {
if (PL_curpad) {
- GV *gv = (GV*)PL_curpad[(PADOFFSET)cPMOPo->op_pmreplroot];
- pad_swipe((PADOFFSET)cPMOPo->op_pmreplroot);
+ GV *gv = (GV*)PL_curpad[INT2PTR(PADOFFSET, cPMOPo->op_pmreplroot)];
+ pad_swipe(INT2PTR(PADOFFSET, cPMOPo->op_pmreplroot));
/* No GvIN_PAD_off(gv) here, because other references may still
* exist on the pad */
SvREFCNT_dec(gv);
case OP_MATCH:
case OP_QR:
clear_pmop:
+ {
+ HV *pmstash = PmopSTASH(cPMOPo);
+ if (pmstash && SvREFCNT(pmstash)) {
+ PMOP *pmop = HvPMROOT(pmstash);
+ PMOP *lastpmop = NULL;
+ while (pmop) {
+ if (cPMOPo == pmop) {
+ if (lastpmop)
+ lastpmop->op_pmnext = pmop->op_pmnext;
+ else
+ HvPMROOT(pmstash) = pmop->op_pmnext;
+ break;
+ }
+ lastpmop = pmop;
+ pmop = pmop->op_pmnext;
+ }
+ }
+ PmopSTASH_free(cPMOPo);
+ }
cPMOPo->op_pmreplroot = Nullop;
- ReREFCNT_dec(cPMOPo->op_pmregexp);
- cPMOPo->op_pmregexp = (REGEXP*)NULL;
+ /* we use the "SAFE" version of the PM_ macros here
+ * since sv_clean_all might release some PMOPs
+ * after PL_regex_padav has been cleared
+ * and the clearing of PL_regex_padav needs to
+ * happen before sv_clean_all
+ */
+ ReREFCNT_dec(PM_GETRE_SAFE(cPMOPo));
+ PM_SETRE_SAFE(cPMOPo, (REGEXP*)NULL);
+#ifdef USE_ITHREADS
+ if(PL_regex_pad) { /* We could be in destruction */
+ av_push((AV*) PL_regex_pad[0],(SV*) PL_regex_pad[(cPMOPo)->op_pmoffset]);
+ SvREPADTMP_on(PL_regex_pad[(cPMOPo)->op_pmoffset]);
+ PM_SETRE(cPMOPo, (cPMOPo)->op_pmoffset);
+ }
+#endif
+
break;
}
STATIC void
S_cop_free(pTHX_ COP* cop)
{
- Safefree(cop->cop_label);
+ Safefree(cop->cop_label); /* FIXME: treaddead ??? */
+ CopFILE_free(cop);
+ CopSTASH_free(cop);
+ if (! specialWARN(cop->cop_warnings))
+ SvREFCNT_dec(cop->cop_warnings);
+ if (! specialCopIO(cop->cop_io)) {
#ifdef USE_ITHREADS
- Safefree(CopFILE(cop)); /* XXX share in a pvtable? */
- Safefree(CopSTASHPV(cop)); /* XXX share in a pvtable? */
+ STRLEN len;
+ char *s = SvPV(cop->cop_io,len);
+ Perl_warn(aTHX_ "io='%.*s'",(int) len,s);
#else
- /* NOTE: COP.cop_stash is not refcounted */
- SvREFCNT_dec(CopFILEGV(cop));
+ SvREFCNT_dec(cop->cop_io);
#endif
- if (! specialWARN(cop->cop_warnings))
- SvREFCNT_dec(cop->cop_warnings);
+ }
}
-STATIC void
-S_null(pTHX_ OP *o)
+void
+Perl_op_null(pTHX_ OP *o)
{
if (o->op_type == OP_NULL)
return;
S_scalarboolean(pTHX_ OP *o)
{
if (o->op_type == OP_SASSIGN && cBINOPo->op_first->op_type == OP_CONST) {
- dTHR;
if (ckWARN(WARN_SYNTAX)) {
line_t oldline = CopLINE(PL_curcop);
switch (o->op_type) {
case OP_REPEAT:
- if (o->op_private & OPpREPEAT_DOLIST)
- null(((LISTOP*)cBINOPo->op_first)->op_first);
scalar(cBINOPo->op_first);
break;
case OP_OR:
}
WITH_THR(PL_curcop = &PL_compiling);
break;
+ case OP_SORT:
+ if (ckWARN(WARN_VOID))
+ Perl_warner(aTHX_ WARN_VOID, "Useless use of sort in scalar context");
}
return o;
}
|| (o->op_type == OP_NULL && (o->op_targ == OP_NEXTSTATE
|| o->op_targ == OP_SETSTATE
|| o->op_targ == OP_DBSTATE)))
- {
- dTHR;
PL_curcop = (COP*)o; /* for warning below */
- }
/* assumes no premature commitment */
want = o->op_flags & OPf_WANT;
case OP_GETLOGIN:
func_ops:
if (!(o->op_private & (OPpLVAL_INTRO|OPpOUR_INTRO)))
- useless = PL_op_desc[o->op_type];
+ useless = OP_DESC(o);
break;
case OP_RV2GV:
if (cSVOPo->op_private & OPpCONST_STRICT)
no_bareword_allowed(o);
else {
- dTHR;
if (ckWARN(WARN_VOID)) {
useless = "a constant";
+ /* the constants 0 and 1 are permitted as they are
+ conventionally used as dummies in constructs like
+ 1 while some_condition_with_side_effects; */
if (SvNIOK(sv) && (SvNV(sv) == 0.0 || SvNV(sv) == 1.0))
useless = 0;
else if (SvPOK(sv)) {
+ /* perl4's way of mixing documentation and code
+ (before the invention of POD) was based on a
+ trick to mix nroff and perl code. The trick was
+ built upon these three nroff macros being used in
+ void context. The pink camel has the details in
+ the script wrapman near page 319. */
if (strnEQ(SvPVX(sv), "di", 2) ||
strnEQ(SvPVX(sv), "ds", 2) ||
strnEQ(SvPVX(sv), "ig", 2))
}
}
}
- null(o); /* don't execute or even remember it */
+ op_null(o); /* don't execute or even remember it */
break;
case OP_POSTINC:
}
break;
}
- if (useless) {
- dTHR;
- if (ckWARN(WARN_VOID))
- Perl_warner(aTHX_ WARN_VOID, "Useless use of %s in void context", useless);
- }
+ if (useless && ckWARN(WARN_VOID))
+ Perl_warner(aTHX_ WARN_VOID, "Useless use of %s in void context", useless);
return o;
}
o->op_type == OP_LEAVE ||
o->op_type == OP_LEAVETRY)
{
- dTHR;
for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling) {
if (kid->op_sibling) {
scalarvoid(kid);
OP *
Perl_mod(pTHX_ OP *o, I32 type)
{
- dTHR;
OP *kid;
STRLEN n_a;
o->op_type = OP_RV2CV; /* entersub => rv2cv */
o->op_ppaddr = PL_ppaddr[OP_RV2CV];
assert(cUNOPo->op_first->op_type == OP_NULL);
- null(((LISTOP*)cUNOPo->op_first)->op_first);/* disable pushmark */
+ op_null(((LISTOP*)cUNOPo->op_first)->op_first);/* disable pushmark */
break;
}
+ else if (o->op_private & OPpENTERSUB_NOMOD)
+ return o;
else { /* lvalue subroutine call */
o->op_private |= OPpLVAL_INTRO;
+ PL_modcount = RETURN_UNLIMITED_NUMBER;
if (type == OP_GREPSTART || type == OP_ENTERSUB || type == OP_REFGEN) {
/* Backward compatibility mode: */
o->op_private |= OPpENTERSUB_INARGS;
if (kid->op_type != OP_NULL || kid->op_targ != OP_LIST)
Perl_croak(aTHX_
"panic: unexpected lvalue entersub "
- "args: type/targ %ld:%ld",
- (long)kid->op_type,kid->op_targ);
+ "args: type/targ %ld:%"UVuf,
+ (long)kid->op_type, (UV)kid->op_targ);
kid = kLISTOP->op_first;
skip_kids:
while (kid->op_sibling)
|| kid->op_type == OP_METHOD)
{
UNOP *newop;
-
- if (kid->op_sibling || kid->op_next != kid) {
- yyerror("panic: unexpected optree near method call");
- break;
- }
NewOp(1101, newop, 1, UNOP);
newop->op_type = OP_RV2CV;
if (kid->op_type != OP_RV2CV)
Perl_croak(aTHX_
"panic: unexpected lvalue entersub "
- "entry via type/targ %ld:%ld",
- (long)kid->op_type,kid->op_targ);
+ "entry via type/targ %ld:%"UVuf,
+ (long)kid->op_type, (UV)kid->op_targ);
kid->op_private |= OPpLVAL_INTRO;
break; /* Postpone until runtime */
}
if (kid->op_type == OP_NULL)
Perl_croak(aTHX_
"Unexpected constant lvalue entersub "
- "entry via type/targ %ld:%ld",
- (long)kid->op_type,kid->op_targ);
+ "entry via type/targ %ld:%"UVuf,
+ (long)kid->op_type, (UV)kid->op_targ);
if (kid->op_type != OP_GV) {
/* Restore RV2CV to check lvalueness */
restore_2cv:
? "do block"
: (o->op_type == OP_ENTERSUB
? "non-lvalue subroutine call"
- : PL_op_desc[o->op_type])),
+ : OP_DESC(o))),
type ? PL_op_desc[type] : "local"));
return o;
if (!type && cUNOPo->op_first->op_type != OP_GV)
Perl_croak(aTHX_ "Can't localize through a reference");
if (type == OP_REFGEN && o->op_flags & OPf_PARENS) {
- PL_modcount = 10000;
+ PL_modcount = RETURN_UNLIMITED_NUMBER;
return o; /* Treat \(@foo) like ordinary list. */
}
/* FALL THROUGH */
goto nomod;
ref(cUNOPo->op_first, o->op_type);
/* FALL THROUGH */
- case OP_AASSIGN:
case OP_ASLICE:
case OP_HSLICE:
+ if (type == OP_LEAVESUBLV)
+ o->op_private |= OPpMAYBE_LVSUB;
+ /* FALL THROUGH */
+ case OP_AASSIGN:
case OP_NEXTSTATE:
case OP_DBSTATE:
- case OP_REFGEN:
case OP_CHOMP:
- PL_modcount = 10000;
+ PL_modcount = RETURN_UNLIMITED_NUMBER;
break;
case OP_RV2SV:
if (!type && cUNOPo->op_first->op_type != OP_GV)
case OP_PADAV:
case OP_PADHV:
- PL_modcount = 10000;
+ PL_modcount = RETURN_UNLIMITED_NUMBER;
if (type == OP_REFGEN && o->op_flags & OPf_PARENS)
return o; /* Treat \(@foo) like ordinary list. */
if (scalar_mod_type(o, type))
goto nomod;
+ if (type == OP_LEAVESUBLV)
+ o->op_private |= OPpMAYBE_LVSUB;
/* FALL THROUGH */
case OP_PADSV:
PL_modcount++;
SvPV(*av_fetch(PL_comppad_name, o->op_targ, 4), n_a));
break;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
case OP_THREADSV:
PL_modcount++; /* XXX ??? */
break;
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
case OP_PUSHMARK:
break;
/* FALL THROUGH */
case OP_POS:
case OP_VEC:
+ if (type == OP_LEAVESUBLV)
+ o->op_private |= OPpMAYBE_LVSUB;
lvalue_func:
pad_free(o->op_targ);
o->op_targ = pad_alloc(o->op_type, SVs_PADMY);
if (type == OP_ENTERSUB &&
!(o->op_private & (OPpLVAL_INTRO | OPpDEREF)))
o->op_private |= OPpLVAL_DEFER;
+ if (type == OP_LEAVESUBLV)
+ o->op_private |= OPpMAYBE_LVSUB;
PL_modcount++;
break;
case OP_SCOPE:
case OP_LEAVE:
case OP_ENTER:
+ case OP_LINESEQ:
if (o->op_flags & OPf_KIDS)
mod(cLISTOPo->op_last, type);
break;
for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling)
mod(kid, type);
break;
+
+ case OP_RETURN:
+ if (type != OP_LEAVESUBLV)
+ goto nomod;
+ break; /* mod()ing was handled by ck_return() */
}
- o->op_flags |= OPf_MOD;
+
+ /* [20011101.069] File test operators interpret OPf_REF to mean that
+ their argument is a filehandle; thus \stat(".") should not set
+ it. AMS 20011102 */
+ if (type == OP_REFGEN &&
+ PL_check[o->op_type] == MEMBER_TO_FPTR(Perl_ck_ftst))
+ return o;
+
+ if (type != OP_LEAVESUBLV)
+ o->op_flags |= OPf_MOD;
if (type == OP_AASSIGN || type == OP_SASSIGN)
o->op_flags |= OPf_SPECIAL|OPf_REF;
o->op_flags &= ~OPf_SPECIAL;
PL_hints |= HINT_BLOCK_SCOPE;
}
- else if (type != OP_GREPSTART && type != OP_ENTERSUB)
+ else if (type != OP_GREPSTART && type != OP_ENTERSUB
+ && type != OP_LEAVESUBLV)
o->op_flags |= OPf_REF;
return o;
}
o->op_type = OP_RV2CV; /* entersub => rv2cv */
o->op_ppaddr = PL_ppaddr[OP_RV2CV];
assert(cUNOPo->op_first->op_type == OP_NULL);
- null(((LISTOP*)cUNOPo->op_first)->op_first); /* disable pushmark */
+ op_null(((LISTOP*)cUNOPo->op_first)->op_first); /* disable pushmark */
o->op_flags |= OPf_SPECIAL;
}
break;
}
STATIC void
-S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs)
+S_apply_attrs(pTHX_ HV *stash, SV *target, OP *attrs, bool for_my)
{
SV *stashsv;
/* fake up C<use attributes $pkg,$rv,@attrs> */
ENTER; /* need to protect against side-effects of 'use' */
SAVEINT(PL_expect);
- if (stash && HvNAME(stash))
+ if (stash)
stashsv = newSVpv(HvNAME(stash), 0);
else
stashsv = &PL_sv_no;
#define ATTRSMODULE "attributes"
+#define ATTRSMODULE_PM "attributes.pm"
- Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS,
- newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1),
- Nullsv,
- prepend_elem(OP_LIST,
- newSVOP(OP_CONST, 0, stashsv),
- prepend_elem(OP_LIST,
- newSVOP(OP_CONST, 0,
- newRV(target)),
- dup_attrlist(attrs))));
+ if (for_my) {
+ SV **svp;
+ /* Don't force the C<use> if we don't need it. */
+ svp = hv_fetch(GvHVn(PL_incgv), ATTRSMODULE_PM,
+ sizeof(ATTRSMODULE_PM)-1, 0);
+ if (svp && *svp != &PL_sv_undef)
+ ; /* already in %INC */
+ else
+ Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT,
+ newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1),
+ Nullsv);
+ }
+ else {
+ Perl_load_module(aTHX_ PERL_LOADMOD_IMPORT_OPS,
+ newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1),
+ Nullsv,
+ prepend_elem(OP_LIST,
+ newSVOP(OP_CONST, 0, stashsv),
+ prepend_elem(OP_LIST,
+ newSVOP(OP_CONST, 0,
+ newRV(target)),
+ dup_attrlist(attrs))));
+ }
LEAVE;
}
+STATIC void
+S_apply_attrs_my(pTHX_ HV *stash, OP *target, OP *attrs, OP **imopsp)
+{
+ OP *pack, *imop, *arg;
+ SV *meth, *stashsv;
+
+ if (!attrs)
+ return;
+
+ assert(target->op_type == OP_PADSV ||
+ target->op_type == OP_PADHV ||
+ target->op_type == OP_PADAV);
+
+ /* Ensure that attributes.pm is loaded. */
+ apply_attrs(stash, pad_sv(target->op_targ), attrs, TRUE);
+
+ /* Need package name for method call. */
+ pack = newSVOP(OP_CONST, 0, newSVpvn(ATTRSMODULE, sizeof(ATTRSMODULE)-1));
+
+ /* Build up the real arg-list. */
+ if (stash)
+ stashsv = newSVpv(HvNAME(stash), 0);
+ else
+ stashsv = &PL_sv_no;
+ arg = newOP(OP_PADSV, 0);
+ arg->op_targ = target->op_targ;
+ arg = prepend_elem(OP_LIST,
+ newSVOP(OP_CONST, 0, stashsv),
+ prepend_elem(OP_LIST,
+ newUNOP(OP_REFGEN, 0,
+ mod(arg, OP_REFGEN)),
+ dup_attrlist(attrs)));
+
+ /* Fake up a method call to import */
+ meth = newSVpvn("import", 6);
+ (void)SvUPGRADE(meth, SVt_PVIV);
+ (void)SvIOK_on(meth);
+ PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth));
+ imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL|OPf_WANT_VOID,
+ append_elem(OP_LIST,
+ prepend_elem(OP_LIST, pack, list(arg)),
+ newSVOP(OP_METHOD_NAMED, 0, meth)));
+ imop->op_private |= OPpENTERSUB_NOMOD;
+
+ /* Combine the ops. */
+ *imopsp = append_elem(OP_LIST, *imopsp, imop);
+}
+
+/*
+=notfor apidoc apply_attrs_string
+
+Attempts to apply a list of attributes specified by the C<attrstr> and
+C<len> arguments to the subroutine identified by the C<cv> argument which
+is expected to be associated with the package identified by the C<stashpv>
+argument (see L<attributes>). It gets this wrong, though, in that it
+does not correctly identify the boundaries of the individual attribute
+specifications within C<attrstr>. This is not really intended for the
+public API, but has to be listed here for systems such as AIX which
+need an explicit export list for symbols. (It's called from XS code
+in support of the C<ATTRS:> keyword from F<xsubpp>.) Patches to fix it
+to respect attribute syntax properly would be welcome.
+
+=cut
+*/
+
void
Perl_apply_attrs_string(pTHX_ char *stashpv, CV *cv,
char *attrstr, STRLEN len)
}
STATIC OP *
-S_my_kid(pTHX_ OP *o, OP *attrs)
+S_my_kid(pTHX_ OP *o, OP *attrs, OP **imopsp)
{
OP *kid;
I32 type;
type = o->op_type;
if (type == OP_LIST) {
for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling)
- my_kid(kid, attrs);
+ my_kid(kid, attrs, imopsp);
} else if (type == OP_UNDEF) {
return o;
} else if (type == OP_RV2SV || /* "our" declaration */
type == OP_RV2AV ||
type == OP_RV2HV) { /* XXX does this let anything illegal in? */
+ if (cUNOPo->op_first->op_type != OP_GV) { /* MJD 20011224 */
+ yyerror(Perl_form(aTHX_ "Can't declare %s in my", OP_DESC(o)));
+ }
+ if (attrs) {
+ GV *gv = cGVOPx_gv(cUNOPo->op_first);
+ PL_in_my = FALSE;
+ PL_in_my_stash = Nullhv;
+ apply_attrs(GvSTASH(gv),
+ (type == OP_RV2SV ? GvSV(gv) :
+ type == OP_RV2AV ? (SV*)GvAV(gv) :
+ type == OP_RV2HV ? (SV*)GvHV(gv) : (SV*)gv),
+ attrs, FALSE);
+ }
o->op_private |= OPpOUR_INTRO;
return o;
- } else if (type != OP_PADSV &&
+ }
+ else if (type != OP_PADSV &&
type != OP_PADAV &&
type != OP_PADHV &&
type != OP_PUSHMARK)
{
yyerror(Perl_form(aTHX_ "Can't declare %s in \"%s\"",
- PL_op_desc[o->op_type],
+ OP_DESC(o),
PL_in_my == KEY_our ? "our" : "my"));
return o;
}
else if (attrs && type != OP_PUSHMARK) {
HV *stash;
- SV *padsv;
SV **namesvp;
PL_in_my = FALSE;
/* check for C<my Dog $spot> when deciding package */
namesvp = av_fetch(PL_comppad_name, o->op_targ, FALSE);
- if (namesvp && *namesvp && SvOBJECT(*namesvp) && HvNAME(SvSTASH(*namesvp)))
+ if (namesvp && *namesvp && (SvFLAGS(*namesvp) & SVpad_TYPED))
stash = SvSTASH(*namesvp);
else
stash = PL_curstash;
- padsv = PAD_SV(o->op_targ);
- apply_attrs(stash, padsv, attrs);
+ apply_attrs_my(stash, o, attrs, imopsp);
}
o->op_flags |= OPf_MOD;
o->op_private |= OPpLVAL_INTRO;
OP *
Perl_my_attrs(pTHX_ OP *o, OP *attrs)
{
+ OP *rops = Nullop;
+ int maybe_scalar = 0;
+
if (o->op_flags & OPf_PARENS)
list(o);
+ else
+ maybe_scalar = 1;
if (attrs)
SAVEFREEOP(attrs);
- o = my_kid(o, attrs);
+ o = my_kid(o, attrs, &rops);
+ if (rops) {
+ if (maybe_scalar && o->op_type == OP_PADSV) {
+ o = scalar(append_list(OP_LIST, (LISTOP*)rops, (LISTOP*)o));
+ o->op_private |= OPpLVAL_INTRO;
+ }
+ else
+ o = append_list(OP_LIST, (LISTOP*)o, (LISTOP*)rops);
+ }
PL_in_my = FALSE;
PL_in_my_stash = Nullhv;
return o;
OP *
Perl_my(pTHX_ OP *o)
{
- return my_kid(o, Nullop);
+ return my_attrs(o, Nullop);
}
OP *
OP *
Perl_bind_match(pTHX_ I32 type, OP *left, OP *right)
{
- dTHR;
OP *o;
if (ckWARN(WARN_MISC) &&
desc, sample, sample);
}
+ if (right->op_type == OP_CONST &&
+ cSVOPx(right)->op_private & OPpCONST_BARE &&
+ cSVOPx(right)->op_private & OPpCONST_STRICT)
+ {
+ no_bareword_allowed(right);
+ }
+
if (!(right->op_flags & OPf_STACKED) &&
(right->op_type == OP_MATCH ||
right->op_type == OP_SUBST ||
o->op_ppaddr = PL_ppaddr[OP_SCOPE];
kid = ((LISTOP*)o)->op_first;
if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE)
- null(kid);
+ op_null(kid);
}
else
o = newLISTOP(OP_SCOPE, 0, o, Nullop);
int
Perl_block_start(pTHX_ int full)
{
- dTHR;
int retval = PL_savestack_ix;
SAVEI32(PL_comppad_name_floor);
PL_compiling.cop_warnings = newSVsv(PL_compiling.cop_warnings) ;
SAVEFREESV(PL_compiling.cop_warnings) ;
}
+ SAVESPTR(PL_compiling.cop_io);
+ if (! specialCopIO(PL_compiling.cop_io)) {
+ PL_compiling.cop_io = newSVsv(PL_compiling.cop_io) ;
+ SAVEFREESV(PL_compiling.cop_io) ;
+ }
return retval;
}
OP*
Perl_block_end(pTHX_ I32 floor, OP *seq)
{
- dTHR;
int needblockscope = PL_hints & HINT_BLOCK_SCOPE;
- OP* retval = scalarseq(seq);
+ line_t copline = PL_copline;
+ /* there should be a nextstate in every block */
+ OP* retval = seq ? scalarseq(seq) : newSTATEOP(0, Nullch, seq);
+ PL_copline = copline; /* XXX newSTATEOP may reset PL_copline */
LEAVE_SCOPE(floor);
PL_pad_reset_pending = FALSE;
PL_compiling.op_private = PL_hints;
STATIC OP *
S_newDEFSVOP(pTHX)
{
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
OP *o = newOP(OP_THREADSV, 0);
o->op_targ = find_threadsv("_");
return o;
#else
return newSVREF(newGVOP(OP_GV, 0, PL_defgv));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
}
void
Perl_newPROG(pTHX_ OP *o)
{
- dTHR;
if (PL_in_eval) {
if (PL_eval_root)
return;
PL_eval_root->op_private |= OPpREFCOUNTED;
OpREFCNT_set(PL_eval_root, 1);
PL_eval_root->op_next = 0;
- peep(PL_eval_start);
+ CALL_PEEP(PL_eval_start);
}
else {
if (!o)
PL_main_root->op_private |= OPpREFCOUNTED;
OpREFCNT_set(PL_main_root, 1);
PL_main_root->op_next = 0;
- peep(PL_main_start);
+ CALL_PEEP(PL_main_start);
PL_compcv = 0;
/* Register with debugger */
if (o->op_flags & OPf_PARENS)
list(o);
else {
- dTHR;
- if (ckWARN(WARN_PARENTHESIS) && PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == ',') {
- char *s;
- for (s = PL_bufptr; *s && (isALNUM(*s) || (*s & 0x80) || strchr("@$%, ",*s)); s++) ;
+ if (ckWARN(WARN_PARENTHESIS)
+ && PL_bufptr > PL_oldbufptr && PL_bufptr[-1] == ',')
+ {
+ char *s = PL_bufptr;
+
+ while (*s && (isALNUM(*s) || UTF8_IS_CONTINUED(*s) || strchr("@$%, ", *s)))
+ s++;
+
if (*s == ';' || *s == '=')
Perl_warner(aTHX_ WARN_PARENTHESIS,
"Parentheses missing around \"%s\" list",
{
if (o->op_type == OP_LIST) {
OP *o2;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
o2 = newOP(OP_THREADSV, 0);
o2->op_targ = find_threadsv(";");
#else
o2 = newSVREF(newGVOP(OP_GV, 0, gv_fetchpv(";", TRUE, SVt_PV))),
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
o = convert(OP_JOIN, 0, prepend_elem(OP_LIST, o2, o));
}
return o;
OP *
Perl_fold_constants(pTHX_ register OP *o)
{
- dTHR;
register OP *curop;
I32 type = o->op_type;
SV *sv;
case OP_SLE:
case OP_SGE:
case OP_SCMP:
-
- if (o->op_private & OPpLOCALE)
+ /* XXX what about the numeric ops? */
+ if (PL_hints & HINT_LOCALE)
goto nope;
}
if ((SvFLAGS(sv) & (SVf_IOK|SVf_NOK|SVf_POK)) == SVf_NOK &&
type != OP_NEGATE)
{
- IV iv = SvIV(sv);
- if ((NV)iv == SvNV(sv)) {
- SvREFCNT_dec(sv);
- sv = newSViv(iv);
- }
- else
- SvIOK_off(sv); /* undo SvIV() damage */
+#ifdef PERL_PRESERVE_IVUV
+ /* Only bother to attempt to fold to IV if
+ most operators will benefit */
+ SvIV_please(sv);
+#endif
}
return newSVOP(OP_CONST, 0, sv);
}
OP *
Perl_gen_constant_list(pTHX_ register OP *o)
{
- dTHR;
register OP *curop;
I32 oldtmps_floor = PL_tmps_floor;
PL_op = curop = LINKLIST(o);
o->op_next = 0;
- peep(curop);
+ CALL_PEEP(curop);
pp_pushmark();
CALLRUNOPS(aTHX);
PL_op = curop;
OP *
Perl_convert(pTHX_ I32 type, I32 flags, OP *o)
{
- OP *kid;
- OP *last = 0;
-
if (!o || o->op_type != OP_LIST)
o = newLISTOP(OP_LIST, 0, o, Nullop);
else
o->op_flags &= ~OPf_WANT;
if (!(PL_opargs[type] & OA_MARK))
- null(cLISTOPo->op_first);
+ op_null(cLISTOPo->op_first);
o->op_type = type;
o->op_ppaddr = PL_ppaddr[type];
if (o->op_type != type)
return o;
- if (cLISTOPo->op_children < 7) {
- /* XXX do we really need to do this if we're done appending?? */
- for (kid = cLISTOPo->op_first; kid; kid = kid->op_sibling)
- last = kid;
- cLISTOPo->op_last = last; /* in case check substituted last arg */
- }
-
return fold_constants(o);
}
((LISTOP*)first)->op_first = last;
}
((LISTOP*)first)->op_last = last;
- ((LISTOP*)first)->op_children++;
return first;
}
first->op_last->op_sibling = last->op_first;
first->op_last = last->op_last;
- first->op_children += last->op_children;
- if (first->op_children)
- first->op_flags |= OPf_KIDS;
+ first->op_flags |= (last->op_flags & OPf_KIDS);
+
+ FreeOp(last);
-#ifdef PL_OP_SLAB_ALLOC
-#else
- Safefree(last);
-#endif
return (OP*)first;
}
if (type == OP_LIST) { /* already a PUSHMARK there */
first->op_sibling = ((LISTOP*)last)->op_first->op_sibling;
((LISTOP*)last)->op_first->op_sibling = first;
+ if (!(first->op_flags & OPf_PARENS))
+ last->op_flags &= ~OPf_PARENS;
}
else {
if (!(last->op_flags & OPf_KIDS)) {
first->op_sibling = ((LISTOP*)last)->op_first;
((LISTOP*)last)->op_first = first;
}
- ((LISTOP*)last)->op_children++;
+ last->op_flags |= OPf_KIDS;
return last;
}
{
if (!o || o->op_type != OP_LIST)
o = newLISTOP(OP_LIST, 0, o, Nullop);
- null(o);
+ op_null(o);
return o;
}
listop->op_type = type;
listop->op_ppaddr = PL_ppaddr[type];
- listop->op_children = (first != 0) + (last != 0);
+ if (first || last)
+ flags |= OPf_KIDS;
listop->op_flags = flags;
if (!last && first)
if (!last)
listop->op_last = pushop;
}
- else if (listop->op_children)
- listop->op_flags |= OPf_KIDS;
return (OP*)listop;
}
}
static int
-utf8compare(const void *a, const void *b)
-{
- int i;
- for (i = 0; i < 10; i++) {
- if ((*(U8**)a)[i] < (*(U8**)b)[i])
- return -1;
- if ((*(U8**)a)[i] > (*(U8**)b)[i])
- return 1;
- }
+uvcompare(const void *a, const void *b)
+{
+ if (*((UV *)a) < (*(UV *)b))
+ return -1;
+ if (*((UV *)a) > (*(UV *)b))
+ return 1;
+ if (*((UV *)a+1) < (*(UV *)b+1))
+ return -1;
+ if (*((UV *)a+1) > (*(UV *)b+1))
+ return 1;
return 0;
}
SV *rstr = ((SVOP*)repl)->op_sv;
STRLEN tlen;
STRLEN rlen;
- register U8 *t = (U8*)SvPV(tstr, tlen);
- register U8 *r = (U8*)SvPV(rstr, rlen);
+ U8 *t = (U8*)SvPV(tstr, tlen);
+ U8 *r = (U8*)SvPV(rstr, rlen);
register I32 i;
register I32 j;
I32 del;
I32 complement;
I32 squash;
+ I32 grows = 0;
register short *tbl;
+ PL_hints |= HINT_BLOCK_SCOPE;
complement = o->op_private & OPpTRANS_COMPLEMENT;
del = o->op_private & OPpTRANS_DELETE;
squash = o->op_private & OPpTRANS_SQUASH;
SV* transv = 0;
U8* tend = t + tlen;
U8* rend = r + rlen;
- I32 ulen;
+ STRLEN ulen;
U32 tfirst = 1;
U32 tlast = 0;
I32 tdiff;
I32 none = 0;
U32 max = 0;
I32 bits;
- I32 grows = 0;
I32 havefinal = 0;
- U32 final;
+ U32 final = 0;
I32 from_utf = o->op_private & OPpTRANS_FROM_UTF;
I32 to_utf = o->op_private & OPpTRANS_TO_UTF;
+ U8* tsave = NULL;
+ U8* rsave = NULL;
+
+ if (!from_utf) {
+ STRLEN len = tlen;
+ tsave = t = bytes_to_utf8(t, &len);
+ tend = t + len;
+ }
+ if (!to_utf && rlen) {
+ STRLEN len = rlen;
+ rsave = r = bytes_to_utf8(r, &len);
+ rend = r + len;
+ }
+
+/* There are several snags with this code on EBCDIC:
+ 1. 0xFF is a legal UTF-EBCDIC byte (there are no illegal bytes).
+ 2. scan_const() in toke.c has encoded chars in native encoding which makes
+ ranges at least in EBCDIC 0..255 range the bottom odd.
+*/
if (complement) {
- U8 tmpbuf[UTF8_MAXLEN];
- U8** cp;
+ U8 tmpbuf[UTF8_MAXLEN+1];
+ UV *cp;
UV nextmin = 0;
- New(1109, cp, tlen, U8*);
+ New(1109, cp, 2*tlen, UV);
i = 0;
transv = newSVpvn("",0);
while (t < tend) {
- cp[i++] = t;
- t += UTF8SKIP(t);
- if (*t == 0xff) {
+ cp[2*i] = utf8n_to_uvuni(t, tend-t, &ulen, 0);
+ t += ulen;
+ if (t < tend && NATIVE_TO_UTF(*t) == 0xff) {
t++;
- t += UTF8SKIP(t);
+ cp[2*i+1] = utf8n_to_uvuni(t, tend-t, &ulen, 0);
+ t += ulen;
+ }
+ else {
+ cp[2*i+1] = cp[2*i];
}
+ i++;
}
- qsort(cp, i, sizeof(U8*), utf8compare);
+ qsort(cp, i, 2*sizeof(UV), uvcompare);
for (j = 0; j < i; j++) {
- U8 *s = cp[j];
- UV val = utf8_to_uv_chk(s, &ulen, 0);
- s += ulen;
+ UV val = cp[2*j];
diff = val - nextmin;
if (diff > 0) {
- t = uv_to_utf8(tmpbuf,nextmin);
+ t = uvuni_to_utf8(tmpbuf,nextmin);
sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf);
if (diff > 1) {
- t = uv_to_utf8(tmpbuf, val - 1);
- sv_catpvn(transv, "\377", 1);
+ U8 range_mark = UTF_TO_NATIVE(0xff);
+ t = uvuni_to_utf8(tmpbuf, val - 1);
+ sv_catpvn(transv, (char *)&range_mark, 1);
sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf);
}
}
- if (*s == 0xff)
- val = utf8_to_uv_chk(s+1, &ulen, 0);
+ val = cp[2*j+1];
if (val >= nextmin)
nextmin = val + 1;
}
- t = uv_to_utf8(tmpbuf,nextmin);
+ t = uvuni_to_utf8(tmpbuf,nextmin);
sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf);
- t = uv_to_utf8(tmpbuf, 0x7fffffff);
- sv_catpvn(transv, "\377", 1);
+ {
+ U8 range_mark = UTF_TO_NATIVE(0xff);
+ sv_catpvn(transv, (char *)&range_mark, 1);
+ }
+ t = uvuni_to_utf8_flags(tmpbuf, 0x7fffffff,
+ UNICODE_ALLOW_SUPER);
sv_catpvn(transv, (char*)tmpbuf, t - tmpbuf);
t = (U8*)SvPVX(transv);
tlen = SvCUR(transv);
tend = t + tlen;
+ Safefree(cp);
}
else if (!rlen && !del) {
r = t; rlen = tlen; rend = tend;
}
if (!squash) {
- if (t == r ||
+ if ((!rlen && !del) || t == r ||
(tlen == rlen && memEQ((char *)t, (char *)r, tlen)))
{
o->op_private |= OPpTRANS_IDENTICAL;
while (t < tend || tfirst <= tlast) {
/* see if we need more "t" chars */
if (tfirst > tlast) {
- tfirst = (I32)utf8_to_uv_chk(t, &ulen, 0);
+ tfirst = (I32)utf8n_to_uvuni(t, tend - t, &ulen, 0);
t += ulen;
- if (t < tend && *t == 0xff) { /* illegal utf8 val indicates range */
- tlast = (I32)utf8_to_uv_chk(++t, &ulen, 0);
+ if (t < tend && NATIVE_TO_UTF(*t) == 0xff) { /* illegal utf8 val indicates range */
+ t++;
+ tlast = (I32)utf8n_to_uvuni(t, tend - t, &ulen, 0);
t += ulen;
}
else
/* now see if we need more "r" chars */
if (rfirst > rlast) {
if (r < rend) {
- rfirst = (I32)utf8_to_uv_chk(r, &ulen, 0);
+ rfirst = (I32)utf8n_to_uvuni(r, rend - r, &ulen, 0);
r += ulen;
- if (r < rend && *r == 0xff) { /* illegal utf8 val indicates range */
- rlast = (I32)utf8_to_uv_chk(++r, &ulen, 0);
+ if (r < rend && NATIVE_TO_UTF(*r) == 0xff) { /* illegal utf8 val indicates range */
+ r++;
+ rlast = (I32)utf8n_to_uvuni(r, rend - r, &ulen, 0);
r += ulen;
}
else
if (rfirst + diff > max)
max = rfirst + diff;
+ if (!grows)
+ grows = (tfirst < rfirst &&
+ UNISKIP(tfirst) < UNISKIP(rfirst + diff));
rfirst += diff + 1;
- if (!grows) {
- if (rfirst <= 0x80)
- ;
- else if (rfirst <= 0x800)
- grows |= (tfirst < 0x80);
- else if (rfirst <= 0x10000)
- grows |= (tfirst < 0x800);
- else if (rfirst <= 0x200000)
- grows |= (tfirst < 0x10000);
- else if (rfirst <= 0x4000000)
- grows |= (tfirst < 0x200000);
- else if (rfirst <= 0x80000000)
- grows |= (tfirst < 0x4000000);
- }
}
tfirst += diff + 1;
}
else
bits = 8;
+ Safefree(cPVOPo->op_pv);
cSVOPo->op_sv = (SV*)swash_init("utf8", "", listsv, bits, none);
SvREFCNT_dec(listsv);
if (transv)
SvREFCNT_dec(transv);
- if (!del && havefinal)
+ if (!del && havefinal && rlen)
(void)hv_store((HV*)SvRV((cSVOPo->op_sv)), "FINAL", 5,
newSVuv((UV)final), 0);
- if (grows && to_utf)
+ if (grows)
o->op_private |= OPpTRANS_GROWS;
+ if (tsave)
+ Safefree(tsave);
+ if (rsave)
+ Safefree(rsave);
+
op_free(expr);
op_free(repl);
return o;
else
tbl[i] = i;
}
- else
+ else {
+ if (i < 128 && r[j] >= 128)
+ grows = 1;
tbl[i] = r[j++];
+ }
}
}
+ if (!del) {
+ if (!rlen) {
+ j = rlen;
+ if (!squash)
+ o->op_private |= OPpTRANS_IDENTICAL;
+ }
+ else if (j >= rlen)
+ j = rlen - 1;
+ else
+ cPVOPo->op_pv = (char*)Renew(tbl, 0x101+rlen-j, short);
+ tbl[0x100] = rlen - j;
+ for (i=0; i < rlen - j; i++)
+ tbl[0x101+i] = r[j+i];
+ }
}
else {
if (!rlen && !del) {
if (!squash)
o->op_private |= OPpTRANS_IDENTICAL;
}
+ else if (!squash && rlen == tlen && memEQ((char*)t, (char*)r, tlen)) {
+ o->op_private |= OPpTRANS_IDENTICAL;
+ }
for (i = 0; i < 256; i++)
tbl[i] = -1;
for (i = 0, j = 0; i < tlen; i++,j++) {
}
--j;
}
- if (tbl[t[i]] == -1)
+ if (tbl[t[i]] == -1) {
+ if (t[i] < 128 && r[j] >= 128)
+ grows = 1;
tbl[t[i]] = r[j];
+ }
}
}
+ if (grows)
+ o->op_private |= OPpTRANS_GROWS;
op_free(expr);
op_free(repl);
OP *
Perl_newPMOP(pTHX_ I32 type, I32 flags)
{
- dTHR;
PMOP *pmop;
NewOp(1101, pmop, 1, PMOP);
pmop->op_pmpermflags |= PMf_LOCALE;
pmop->op_pmflags = pmop->op_pmpermflags;
- /* link into pm list */
+#ifdef USE_ITHREADS
+ {
+ SV* repointer;
+ if(av_len((AV*) PL_regex_pad[0]) > -1) {
+ repointer = av_pop((AV*)PL_regex_pad[0]);
+ pmop->op_pmoffset = SvIV(repointer);
+ SvREPADTMP_off(repointer);
+ sv_setiv(repointer,0);
+ } else {
+ repointer = newSViv(0);
+ av_push(PL_regex_padav,SvREFCNT_inc(repointer));
+ pmop->op_pmoffset = av_len(PL_regex_padav);
+ PL_regex_pad = AvARRAY(PL_regex_padav);
+ }
+ }
+#endif
+
+ /* link into pm list */
if (type != OP_TRANS && PL_curstash) {
pmop->op_pmnext = HvPMROOT(PL_curstash);
HvPMROOT(PL_curstash) = pmop;
+ PmopSTASH_set(pmop,PL_curstash);
}
return (OP*)pmop;
OP *
Perl_pmruntime(pTHX_ OP *o, OP *expr, OP *repl)
{
- dTHR;
PMOP *pm;
LOGOP *rcop;
I32 repl_has_vars = 0;
p = SvPV(pat, plen);
pm->op_pmflags |= PMf_SKIPWHITE;
}
- if ((PL_hints & HINT_UTF8) || (SvUTF8(pat) && !(PL_hints & HINT_BYTE)))
+ if (DO_UTF8(pat))
pm->op_pmdynflags |= PMdf_UTF8;
- pm->op_pmregexp = CALLREGCOMP(aTHX_ p, p + plen, pm);
- if (strEQ("\\s+", pm->op_pmregexp->precomp))
+ PM_SETRE(pm, CALLREGCOMP(aTHX_ p, p + plen, pm));
+ if (strEQ("\\s+", PM_GETRE(pm)->precomp))
pm->op_pmflags |= PMf_WHITE;
op_free(expr);
}
else {
- if (PL_hints & HINT_UTF8)
- pm->op_pmdynflags |= PMdf_UTF8;
if (pm->op_pmflags & PMf_KEEP || !(PL_hints & HINT_RE_EVAL))
expr = newUNOP((!(PL_hints & HINT_RE_EVAL)
? OP_REGCRESET
if (CopLINE(PL_curcop) < PL_multi_end)
CopLINE_set(PL_curcop, PL_multi_end);
}
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
else if (repl->op_type == OP_THREADSV
&& strchr("&`'123456789+",
PL_threadsv_names[repl->op_targ]))
{
curop = 0;
}
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
else if (repl->op_type == OP_CONST)
curop = repl;
else {
OP *lastop = 0;
for (curop = LINKLIST(repl); curop!=repl; curop = LINKLIST(curop)) {
if (PL_opargs[curop->op_type] & OA_DANGEROUS) {
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
if (curop->op_type == OP_THREADSV) {
repl_has_vars = 1;
if (strchr("&`'123456789+", curop->op_private))
if (strchr("&`'123456789+", *GvENAME(gv)))
break;
}
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
else if (curop->op_type == OP_RV2CV)
break;
else if (curop->op_type == OP_RV2SV ||
}
if (curop == repl
&& !(repl_has_vars
- && (!pm->op_pmregexp
- || pm->op_pmregexp->reganch & ROPT_EVAL_SEEN))) {
+ && (!PM_GETRE(pm)
+ || PM_GETRE(pm)->reganch & ROPT_EVAL_SEEN))) {
pm->op_pmflags |= PMf_CONST; /* const for long enough */
pm->op_pmpermflags |= PMf_CONST; /* const for long enough */
prepend_elem(o->op_type, scalar(repl), o);
}
else {
- if (curop == repl && !pm->op_pmregexp) { /* Has variables. */
+ if (curop == repl && !PM_GETRE(pm)) { /* Has variables. */
pm->op_pmflags |= PMf_MAYBE_CONST;
pm->op_pmpermflags |= PMf_MAYBE_CONST;
}
OP *
Perl_newGVOP(pTHX_ I32 type, I32 flags, GV *gv)
{
- dTHR;
#ifdef USE_ITHREADS
GvIN_PAD_on(gv);
return newPADOP(type, flags, SvREFCNT_inc(gv));
void
Perl_package(pTHX_ OP *o)
{
- dTHR;
SV *sv;
save_hptr(&PL_curstash);
op_free(o);
}
else {
+ deprecate("\"package\" with no arguments");
sv_setpv(PL_curstname,"<none>");
PL_curstash = Nullhv;
}
Perl_utilize(pTHX_ int aver, I32 floor, OP *version, OP *id, OP *arg)
{
OP *pack;
- OP *rqop;
OP *imop;
OP *veop;
- GV *gv;
+ char *packname = Nullch;
+ STRLEN packlen = 0;
+ SV *packsv;
if (id->op_type != OP_CONST)
Perl_croak(aTHX_ "Module name must be constant");
/* Fake up a method call to import/unimport */
meth = aver ? newSVpvn("import",6) : newSVpvn("unimport", 8);;
- sv_upgrade(meth, SVt_PVIV);
+ (void)SvUPGRADE(meth, SVt_PVIV);
(void)SvIOK_on(meth);
PERL_HASH(SvUVX(meth), SvPVX(meth), SvCUR(meth));
imop = convert(OP_ENTERSUB, OPf_STACKED|OPf_SPECIAL,
newSVOP(OP_METHOD_NAMED, 0, meth)));
}
- /* Fake up a require, handle override, if any */
- gv = gv_fetchpv("require", FALSE, SVt_PVCV);
- if (!(gv && GvIMPORTED_CV(gv)))
- gv = gv_fetchpv("CORE::GLOBAL::require", FALSE, SVt_PVCV);
-
- if (gv && GvIMPORTED_CV(gv)) {
- rqop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED,
- append_elem(OP_LIST, id,
- scalar(newUNOP(OP_RV2CV, 0,
- newGVOP(OP_GV, 0,
- gv))))));
- }
- else {
- rqop = newUNOP(OP_REQUIRE, 0, id);
+ if (ckWARN(WARN_MISC) &&
+ imop && (imop != arg) && /* no warning on use 5.0; or explicit () */
+ SvPOK(packsv = ((SVOP*)id)->op_sv))
+ {
+ /* BEGIN will free the ops, so we need to make a copy */
+ packlen = SvCUR(packsv);
+ packname = savepvn(SvPVX(packsv), packlen);
}
/* Fake up the BEGIN {}, which does its thing immediately. */
Nullop,
append_elem(OP_LINESEQ,
append_elem(OP_LINESEQ,
- newSTATEOP(0, Nullch, rqop),
+ newSTATEOP(0, Nullch, newUNOP(OP_REQUIRE, 0, id)),
newSTATEOP(0, Nullch, veop)),
newSTATEOP(0, Nullch, imop) ));
+ if (packname) {
+ if (ckWARN(WARN_MISC) && !gv_stashpvn(packname, packlen, FALSE)) {
+ Perl_warner(aTHX_ WARN_MISC,
+ "Package `%s' not found "
+ "(did you use the incorrect case?)", packname);
+ }
+ safefree(packname);
+ }
+
PL_hints |= HINT_BLOCK_SCOPE;
PL_copline = NOLINE;
PL_expect = XSTATE;
}
+/*
+=head1 Embedding Functions
+
+=for apidoc load_module
+
+Loads the module whose name is pointed to by the string part of name.
+Note that the actual module name, not its filename, should be given.
+Eg, "Foo::Bar" instead of "Foo/Bar.pm". flags can be any of
+PERL_LOADMOD_DENY, PERL_LOADMOD_NOIMPORT, or PERL_LOADMOD_IMPORT_OPS
+(or 0 for no flags). ver, if specified, provides version semantics
+similar to C<use Foo::Bar VERSION>. The optional trailing SV*
+arguments can be used to specify arguments to the module's import()
+method, similar to C<use Foo::Bar VERSION LIST>.
+
+=cut */
+
void
Perl_load_module(pTHX_ U32 flags, SV *name, SV *ver, ...)
{
GV *gv;
gv = gv_fetchpv("do", FALSE, SVt_PVCV);
- if (!(gv && GvIMPORTED_CV(gv)))
+ if (!(gv && GvCVu(gv) && GvIMPORTED_CV(gv)))
gv = gv_fetchpv("CORE::GLOBAL::do", FALSE, SVt_PVCV);
- if (gv && GvIMPORTED_CV(gv)) {
+ if (gv && GvCVu(gv) && GvIMPORTED_CV(gv)) {
doop = ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED,
append_elem(OP_LIST, term,
scalar(newUNOP(OP_RV2CV, 0,
return FALSE;
}
+ if (o->op_type == OP_LIST &&
+ (o->op_flags & OPf_WANT) == OPf_WANT_SCALAR &&
+ o->op_private & OPpLVAL_INTRO)
+ return FALSE;
+
if (o->op_type == OP_LIST || o->op_flags & OPf_PARENS ||
o->op_type == OP_RV2AV || o->op_type == OP_RV2HV ||
o->op_type == OP_ASLICE || o->op_type == OP_HSLICE)
}
if (list_assignment(left)) {
- dTHR;
OP *curop;
PL_modcount = 0;
else if (curop->op_type == OP_PUSHRE) {
if (((PMOP*)curop)->op_pmreplroot) {
#ifdef USE_ITHREADS
- GV *gv = (GV*)PL_curpad[(PADOFFSET)((PMOP*)curop)->op_pmreplroot];
+ GV *gv = (GV*)PL_curpad[INT2PTR(PADOFFSET,((PMOP*)curop)->op_pmreplroot)];
#else
GV *gv = (GV*)((PMOP*)curop)->op_pmreplroot;
#endif
tmpop = ((UNOP*)left)->op_first;
if (tmpop->op_type == OP_GV && !pm->op_pmreplroot) {
#ifdef USE_ITHREADS
- pm->op_pmreplroot = (OP*)cPADOPx(tmpop)->op_padix;
+ pm->op_pmreplroot = INT2PTR(OP*, cPADOPx(tmpop)->op_padix);
cPADOPx(tmpop)->op_padix = 0; /* steal it */
#else
pm->op_pmreplroot = (OP*)cSVOPx(tmpop)->op_sv;
}
}
else {
- if (PL_modcount < 10000 &&
+ if (PL_modcount < RETURN_UNLIMITED_NUMBER &&
((LISTOP*)right)->op_last->op_type == OP_CONST)
{
SV *sv = ((SVOP*)((LISTOP*)right)->op_last)->op_sv;
OP *
Perl_newSTATEOP(pTHX_ I32 flags, char *label, OP *o)
{
- dTHR;
U32 seq = intro_my();
register COP *cop;
cop->op_ppaddr = PL_ppaddr[ OP_NEXTSTATE ];
}
cop->op_flags = flags;
- cop->op_private = (PL_hints & HINT_BYTE);
+ cop->op_private = (PL_hints & HINT_PRIVATE_MASK);
#ifdef NATIVE_HINTS
cop->op_private |= NATIVE_HINTS;
#endif
cop->cop_warnings = PL_curcop->cop_warnings ;
else
cop->cop_warnings = newSVsv(PL_curcop->cop_warnings) ;
+ if (specialCopIO(PL_curcop->cop_io))
+ cop->cop_io = PL_curcop->cop_io;
+ else
+ cop->cop_io = newSVsv(PL_curcop->cop_io) ;
if (PL_copline == NOLINE)
if (PERLDB_LINE && PL_curstash != PL_debstash) {
SV **svp = av_fetch(CopFILEAV(PL_curcop), (I32)CopLINE(cop), FALSE);
- if (svp && *svp != &PL_sv_undef && !SvIOK(*svp)) {
- (void)SvIOK_on(*svp);
+ if (svp && *svp != &PL_sv_undef ) {
+ (void)SvIOK_on(*svp);
SvIVX(*svp) = PTR2IV(cop);
}
}
STATIC OP *
S_new_logop(pTHX_ I32 type, I32 flags, OP** firstp, OP** otherp)
{
- dTHR;
LOGOP *logop;
OP *o;
OP *first = *firstp;
OP *
Perl_newCONDOP(pTHX_ I32 flags, OP *first, OP *trueop, OP *falseop)
{
- dTHR;
LOGOP *logop;
OP *start;
OP *o;
OP *
Perl_newRANGE(pTHX_ I32 flags, OP *left, OP *right)
{
- dTHR;
LOGOP *range;
OP *flip;
OP *flop;
OP *
Perl_newLOOPOP(pTHX_ I32 flags, I32 debuggable, OP *expr, OP *block)
{
- dTHR;
OP* listop;
OP* o;
int once = block && block->op_flags & OPf_SPECIAL &&
case OP_SASSIGN:
if (k1->op_type == OP_READDIR
|| k1->op_type == OP_GLOB
- || (k1->op_type == OP_NULL && k1->op_targ == OP_NULL)
+ || (k1->op_type == OP_NULL && k1->op_targ == OP_GLOB)
|| k1->op_type == OP_EACH)
expr = newUNOP(OP_DEFINED, 0, expr);
break;
OP *
Perl_newWHILEOP(pTHX_ I32 flags, I32 debuggable, LOOP *loop, I32 whileline, OP *expr, OP *block, OP *cont)
{
- dTHR;
OP *redo;
OP *next = 0;
OP *listop;
OP *o;
- OP *condop;
U8 loopflags = 0;
if (expr && (expr->op_type == OP_READLINE || expr->op_type == OP_GLOB
if (cont) {
next = LINKLIST(cont);
- loopflags |= OPpLOOP_CONTINUE;
}
if (expr) {
OP *unstack = newOP(OP_UNSTACK, 0);
return Nullop; /* listop already freed by new_logop */
}
if (listop)
- ((LISTOP*)listop)->op_last->op_next = condop =
+ ((LISTOP*)listop)->op_last->op_next =
(o == listop ? redo : LINKLIST(o));
}
else
Perl_croak(aTHX_ "Can't use %s for loop variable", PL_op_desc[sv->op_type]);
}
else {
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
padoff = find_threadsv("_");
iterflags |= OPf_SPECIAL;
#else
op_free(expr);
expr = (OP*)(listop);
- null(expr);
+ op_null(expr);
iterflags |= OPf_STACKED;
}
else {
LOOP *tmp;
NewOp(1234,tmp,1,LOOP);
Copy(loop,tmp,1,LOOP);
+ FreeOp(loop);
loop = tmp;
}
#else
OP*
Perl_newLOOPEX(pTHX_ I32 type, OP *label)
{
- dTHR;
OP *o;
STRLEN n_a;
void
Perl_cv_undef(pTHX_ CV *cv)
{
- dTHR;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
if (CvMUTEXP(cv)) {
MUTEX_DESTROY(CvMUTEXP(cv));
Safefree(CvMUTEXP(cv));
CvMUTEXP(cv) = 0;
}
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
+
+#ifdef USE_ITHREADS
+ if (CvFILE(cv) && !CvXSUB(cv)) {
+ /* for XSUBs CvFILE point directly to static memory; __FILE__ */
+ Safefree(CvFILE(cv));
+ }
+ CvFILE(cv) = 0;
+#endif
if (!CvXSUB(cv) && CvROOT(cv)) {
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
if (CvDEPTH(cv) || (CvOWNER(cv) && CvOWNER(cv) != thr))
Perl_croak(aTHX_ "Can't undef active subroutine");
#else
if (CvDEPTH(cv))
Perl_croak(aTHX_ "Can't undef active subroutine");
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
ENTER;
SAVEVPTR(PL_curpad);
PL_curpad = 0;
- if (!CvCLONED(cv))
- op_free(CvROOT(cv));
+ op_free(CvROOT(cv));
CvROOT(cv) = Nullop;
LEAVE;
}
SvPOK_off((SV*)cv); /* forget prototype */
- CvFLAGS(cv) = 0;
- SvREFCNT_dec(CvGV(cv));
CvGV(cv) = Nullgv;
- SvREFCNT_dec(CvOUTSIDE(cv));
+ /* Since closure prototypes have the same lifetime as the containing
+ * CV, they don't hold a refcount on the outside CV. This avoids
+ * the refcount loop between the outer CV (which keeps a refcount to
+ * the closure prototype in the pad entry for pp_anoncode()) and the
+ * closure prototype, and the ensuing memory leak. --GSAR */
+ if (!CvANON(cv) || CvCLONED(cv))
+ SvREFCNT_dec(CvOUTSIDE(cv));
CvOUTSIDE(cv) = Nullcv;
if (CvCONST(cv)) {
SvREFCNT_dec((SV*)CvXSUBANY(cv).any_ptr);
}
CvPADLIST(cv) = Nullav;
}
+ if (CvXSUB(cv)) {
+ CvXSUB(cv) = 0;
+ }
+ CvFLAGS(cv) = 0;
}
+#ifdef DEBUG_CLOSURES
STATIC void
S_cv_dump(pTHX_ CV *cv)
{
}
#endif /* DEBUGGING */
}
+#endif /* DEBUG_CLOSURES */
STATIC CV *
S_cv_clone2(pTHX_ CV *proto, CV *outside)
{
- dTHR;
AV* av;
I32 ix;
AV* protopadlist = CvPADLIST(proto);
CvFLAGS(cv) = CvFLAGS(proto) & ~CVf_CLONE;
CvCLONED_on(cv);
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
New(666, CvMUTEXP(cv), 1, perl_mutex);
MUTEX_INIT(CvMUTEXP(cv));
CvOWNER(cv) = 0;
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
+#ifdef USE_ITHREADS
+ CvFILE(cv) = CvXSUB(proto) ? CvFILE(proto)
+ : savepv(CvFILE(proto));
+#else
CvFILE(cv) = CvFILE(proto);
- CvGV(cv) = (GV*)SvREFCNT_inc(CvGV(proto));
+#endif
+ CvGV(cv) = CvGV(proto);
CvSTASH(cv) = CvSTASH(proto);
- CvROOT(cv) = CvROOT(proto);
+ CvROOT(cv) = OpREFCNT_inc(CvROOT(proto));
CvSTART(cv) = CvSTART(proto);
if (outside)
CvOUTSIDE(cv) = (CV*)SvREFCNT_inc(outside);
void
Perl_cv_ckproto(pTHX_ CV *cv, GV *gv, char *p)
{
- dTHR;
-
if (((!p != !SvPOK(cv)) || (p && strNE(p, SvPVX(cv)))) && ckWARN_d(WARN_PROTOTYPE)) {
SV* msg = sv_newmortal();
SV* name = Nullsv;
}
}
-static void const_sv_xsub(pTHXo_ CV* cv);
+static void const_sv_xsub(pTHX_ CV* cv);
/*
+
+=head1 Optree Manipulation Functions
+
=for apidoc cv_const_sv
If C<cv> is a constant sub eligible for inlining. returns the constant
if (sv && o->op_next == o)
return sv;
- if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK)
- continue;
+ if (o->op_next != o) {
+ if (type == OP_NEXTSTATE || type == OP_NULL || type == OP_PUSHMARK)
+ continue;
+ if (type == OP_DBSTATE)
+ continue;
+ }
if (type == OP_LEAVESUB || type == OP_RETURN)
break;
if (sv)
CV *
Perl_newATTRSUB(pTHX_ I32 floor, OP *o, OP *proto, OP *attrs, OP *block)
{
- dTHR;
STRLEN n_a;
char *name;
char *aname;
cv = (!name || GvCVGEN(gv)) ? Nullcv : GvCV(gv);
+#ifdef GV_UNIQUE_CHECK
+ if (cv && GvUNIQUE(gv) && SvREADONLY(cv)) {
+ Perl_croak(aTHX_ "Can't define subroutine %s (GV is unique)", name);
+ }
+#endif
+
if (!block || !ps || *ps || attrs)
const_sv = Nullsv;
else
if (cv) {
bool exists = CvROOT(cv) || CvXSUB(cv);
+
+#ifdef GV_UNIQUE_CHECK
+ if (exists && GvUNIQUE(gv)) {
+ Perl_croak(aTHX_ "Can't redefine unique subroutine %s", name);
+ }
+#endif
+
/* if the subroutine doesn't exist and wasn't pre-declared
* with a prototype, assume it will be AUTOLOADed,
* skipping the prototype check
&& (!const_sv || sv_cmp(cv_const_sv(cv), const_sv))))
{
line_t oldline = CopLINE(PL_curcop);
- CopLINE_set(PL_curcop, PL_copline);
+ if (PL_copline != NOLINE)
+ CopLINE_set(PL_curcop, PL_copline);
Perl_warner(aTHX_ WARN_REDEFINE,
CvCONST(cv) ? "Constant subroutine %s redefined"
: "Subroutine %s redefined", name);
if (const_sv) {
SvREFCNT_inc(const_sv);
if (cv) {
- cv_undef(cv);
+ assert(!CvROOT(cv) && !CvCONST(cv));
sv_setpv((SV*)cv, ""); /* prototype is "" */
CvXSUBANY(cv).any_ptr = const_sv;
CvXSUB(cv) = const_sv_xsub;
CvCONST_on(cv);
- /* XXX Does anybody care that CvFILE(cv) is blank? */
}
else {
GvCV(gv) = Nullcv;
*/
if (cv && !block) {
rcv = (SV*)cv;
- if (CvGV(cv) && GvSTASH(CvGV(cv)) && HvNAME(GvSTASH(CvGV(cv))))
+ if (CvGV(cv) && GvSTASH(CvGV(cv)))
stash = GvSTASH(CvGV(cv));
- else if (CvSTASH(cv) && HvNAME(CvSTASH(cv)))
+ else if (CvSTASH(cv))
stash = CvSTASH(cv);
else
stash = PL_curstash;
else {
/* possibly about to re-define existing subr -- ignore old cv */
rcv = (SV*)PL_compcv;
- if (name && GvSTASH(gv) && HvNAME(GvSTASH(gv)))
+ if (name && GvSTASH(gv))
stash = GvSTASH(gv);
else
stash = PL_curstash;
}
- apply_attrs(stash, rcv, attrs);
+ apply_attrs(stash, rcv, attrs, FALSE);
}
if (cv) { /* must reuse cv if autoloaded */
if (!block) {
CvOUTSIDE(PL_compcv) = 0;
CvPADLIST(cv) = CvPADLIST(PL_compcv);
CvPADLIST(PL_compcv) = 0;
- if (SvREFCNT(PL_compcv) > 1) /* XXX Make closures transit through stub. */
- CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc((SV*)cv);
+ /* inner references to PL_compcv must be fixed up ... */
+ {
+ AV *padlist = CvPADLIST(cv);
+ AV *comppad_name = (AV*)AvARRAY(padlist)[0];
+ AV *comppad = (AV*)AvARRAY(padlist)[1];
+ SV **namepad = AvARRAY(comppad_name);
+ SV **curpad = AvARRAY(comppad);
+ for (ix = AvFILLp(comppad_name); ix > 0; ix--) {
+ SV *namesv = namepad[ix];
+ if (namesv && namesv != &PL_sv_undef
+ && *SvPVX(namesv) == '&')
+ {
+ CV *innercv = (CV*)curpad[ix];
+ if (CvOUTSIDE(innercv) == PL_compcv) {
+ CvOUTSIDE(innercv) = cv;
+ if (!CvANON(innercv) || CvCLONED(innercv)) {
+ (void)SvREFCNT_inc(cv);
+ SvREFCNT_dec(PL_compcv);
+ }
+ }
+ }
+ }
+ }
+ /* ... before we throw it away */
SvREFCNT_dec(PL_compcv);
+ if (PERLDB_INTER)/* Advice debugger on the new sub. */
+ ++PL_sub_generation;
}
else {
cv = PL_compcv;
PL_sub_generation++;
}
}
- CvGV(cv) = (GV*)SvREFCNT_inc(gv);
- CvFILE(cv) = CopFILE(PL_curcop);
+ CvGV(cv) = gv;
+ CvFILE_set_from_cop(cv, PL_curcop);
CvSTASH(cv) = PL_curstash;
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
CvOWNER(cv) = 0;
if (!CvMUTEXP(cv)) {
New(666, CvMUTEXP(cv), 1, perl_mutex);
MUTEX_INIT(CvMUTEXP(cv));
}
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
if (ps)
sv_setpv((SV*)cv, ps);
av_store(PL_comppad_name, AvFILLp(PL_comppad), Nullsv);
if (CvLVALUE(cv)) {
- CvROOT(cv) = newUNOP(OP_LEAVESUBLV, 0, scalarseq(block));
+ CvROOT(cv) = newUNOP(OP_LEAVESUBLV, 0,
+ mod(scalarseq(block), OP_LEAVESUBLV));
}
else {
CvROOT(cv) = newUNOP(OP_LEAVESUB, 0, scalarseq(block));
OpREFCNT_set(CvROOT(cv), 1);
CvSTART(cv) = LINKLIST(CvROOT(cv));
CvROOT(cv)->op_next = 0;
- peep(CvSTART(cv));
+ CALL_PEEP(CvSTART(cv));
/* now that optimizer has done its work, adjust pad values */
if (CvCLONE(cv)) {
}
}
+ /* If a potential closure prototype, don't keep a refcount on outer CV.
+ * This is okay as the lifetime of the prototype is tied to the
+ * lifetime of the outer CV. Avoids memory leak due to reference
+ * loop. --GSAR */
+ if (!name)
+ SvREFCNT_dec(CvOUTSIDE(cv));
+
if (name || aname) {
char *s;
char *tname = (name ? name : aname);
ENTER;
SAVECOPFILE(&PL_compiling);
SAVECOPLINE(&PL_compiling);
- save_svref(&PL_rs);
- sv_setsv(PL_rs, PL_nrs);
if (!PL_beginav)
PL_beginav = newAV();
CV *
Perl_newCONSTSUB(pTHX_ HV *stash, char *name, SV *sv)
{
- dTHR;
CV* cv;
ENTER;
SAVESPTR(PL_curstash);
SAVECOPSTASH(PL_curcop);
PL_curstash = stash;
-#ifdef USE_ITHREADS
- CopSTASHPV(PL_curcop) = stash ? HvNAME(stash) : Nullch;
-#else
- CopSTASH(PL_curcop) = stash;
-#endif
+ CopSTASH_set(PL_curcop,stash);
}
cv = newXS(name, const_sv_xsub, __FILE__);
CV *
Perl_newXS(pTHX_ char *name, XSUBADDR_t subaddr, char *filename)
{
- dTHR;
GV *gv = gv_fetchpv(name ? name : "__ANON__", GV_ADDMULTI, SVt_PVCV);
register CV *cv;
else if (CvROOT(cv) || CvXSUB(cv) || GvASSUMECV(gv)) {
/* already defined (or promised) */
if (ckWARN(WARN_REDEFINE) && !(CvGV(cv) && GvSTASH(CvGV(cv))
- && HvNAME(GvSTASH(CvGV(cv)))
&& strEQ(HvNAME(GvSTASH(CvGV(cv))), "autouse"))) {
line_t oldline = CopLINE(PL_curcop);
if (PL_copline != NOLINE)
PL_sub_generation++;
}
}
- CvGV(cv) = (GV*)SvREFCNT_inc(gv);
-#ifdef USE_THREADS
+ CvGV(cv) = gv;
+#ifdef USE_5005THREADS
New(666, CvMUTEXP(cv), 1, perl_mutex);
MUTEX_INIT(CvMUTEXP(cv));
CvOWNER(cv) = 0;
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
(void)gv_fetchfile(filename);
CvFILE(cv) = filename; /* NOTE: not copied, as it is expected to be
an external constant string */
void
Perl_newFORM(pTHX_ I32 floor, OP *o, OP *block)
{
- dTHR;
register CV *cv;
char *name;
GV *gv;
else
name = "STDOUT";
gv = gv_fetchpv(name,TRUE, SVt_PVFM);
+#ifdef GV_UNIQUE_CHECK
+ if (GvUNIQUE(gv)) {
+ Perl_croak(aTHX_ "Bad symbol for form (GV is unique)");
+ }
+#endif
GvMULTI_on(gv);
if ((cv = GvFORM(gv))) {
if (ckWARN(WARN_REDEFINE)) {
line_t oldline = CopLINE(PL_curcop);
-
- CopLINE_set(PL_curcop, PL_copline);
+ if (PL_copline != NOLINE)
+ CopLINE_set(PL_curcop, PL_copline);
Perl_warner(aTHX_ WARN_REDEFINE, "Format %s redefined",name);
CopLINE_set(PL_curcop, oldline);
}
}
cv = PL_compcv;
GvFORM(gv) = cv;
- CvGV(cv) = (GV*)SvREFCNT_inc(gv);
- CvFILE(cv) = CopFILE(PL_curcop);
+ CvGV(cv) = gv;
+ CvFILE_set_from_cop(cv, PL_curcop);
for (ix = AvFILLp(PL_comppad); ix > 0; ix--) {
if (!SvPADMY(PL_curpad[ix]) && !SvIMMORTAL(PL_curpad[ix]))
OpREFCNT_set(CvROOT(cv), 1);
CvSTART(cv) = LINKLIST(CvROOT(cv));
CvROOT(cv)->op_next = 0;
- peep(CvSTART(cv));
+ CALL_PEEP(CvSTART(cv));
op_free(o);
PL_copline = NOLINE;
LEAVE_SCOPE(floor);
OP *
Perl_oopsHV(pTHX_ OP *o)
{
- dTHR;
-
switch (o->op_type) {
case OP_PADSV:
case OP_PADAV:
o->op_ppaddr = PL_ppaddr[OP_PADAV];
return o;
}
+ else if ((o->op_type == OP_RV2AV || o->op_type == OP_PADAV)
+ && ckWARN(WARN_DEPRECATED)) {
+ Perl_warner(aTHX_ WARN_DEPRECATED,
+ "Using an array as a reference is deprecated");
+ }
return newUNOP(OP_RV2AV, 0, scalar(o));
}
o->op_ppaddr = PL_ppaddr[OP_PADHV];
return o;
}
+ else if ((o->op_type == OP_RV2HV || o->op_type == OP_PADHV)
+ && ckWARN(WARN_DEPRECATED)) {
+ Perl_warner(aTHX_ WARN_DEPRECATED,
+ "Using a hash as a reference is deprecated");
+ }
return newUNOP(OP_RV2HV, 0, scalar(o));
}
break;
default:
Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element or slice",
- PL_op_desc[o->op_type]);
+ OP_DESC(o));
}
- null(kid);
+ op_null(kid);
}
return o;
}
OP *
+Perl_ck_die(pTHX_ OP *o)
+{
+#ifdef VMS
+ if (VMSISH_HUSHED) o->op_private |= OPpHUSH_VMSISH;
+#endif
+ return ck_fun(o);
+}
+
+OP *
Perl_ck_eof(pTHX_ OP *o)
{
I32 type = o->op_type;
if (!kid) {
o->op_flags &= ~OPf_KIDS;
- null(o);
+ op_null(o);
}
else if (kid->op_type == OP_LINESEQ) {
LOGOP *enter;
if (svp && *svp && SvTRUE(*svp))
o->op_private |= OPpEXIT_VMSISH;
}
+ if (VMSISH_HUSHED) o->op_private |= OPpHUSH_VMSISH;
#endif
return ck_fun(o);
}
o = ck_fun(o);
kid = cUNOPo->op_first->op_sibling;
if (kid->op_type == OP_RV2GV)
- null(kid);
+ op_null(kid);
}
else
o = listkids(o);
(void) ref(kid, o->op_type);
if (kid->op_type != OP_RV2CV && !PL_error_count)
Perl_croak(aTHX_ "%s argument is not a subroutine name",
- PL_op_desc[o->op_type]);
+ OP_DESC(o));
o->op_private |= OPpEXISTS_SUB;
}
else if (kid->op_type == OP_AELEM)
o->op_flags |= OPf_SPECIAL;
else if (kid->op_type != OP_HELEM)
Perl_croak(aTHX_ "%s argument is not a HASH or ARRAY element",
- PL_op_desc[o->op_type]);
- null(kid);
+ OP_DESC(o));
+ op_null(kid);
}
return o;
}
OP *
Perl_ck_rvconst(pTHX_ register OP *o)
{
- dTHR;
SVOP *kid = (SVOP*)cUNOPo->op_first;
o->op_private |= (PL_hints & HINT_STRICT_REFS);
#else
kid->op_sv = SvREFCNT_inc(gv);
#endif
+ kid->op_private = 0;
kid->op_ppaddr = PL_ppaddr[OP_GV];
}
}
OP *
Perl_ck_ftst(pTHX_ OP *o)
{
- dTHR;
I32 type = o->op_type;
if (o->op_flags & OPf_REF) {
else
o = newUNOP(type, 0, newDEFSVOP());
}
-#ifdef USE_LOCALE
- if (type == OP_FTTEXT || type == OP_FTBINARY) {
- o->op_private = 0;
- if (PL_hints & HINT_LOCALE)
- o->op_private |= OPpLOCALE;
- }
-#endif
return o;
}
OP *
Perl_ck_fun(pTHX_ OP *o)
{
- dTHR;
register OP *kid;
OP **tokid;
OP *sibl;
list(kid);
break;
case OA_AVREF:
+ if ((type == OP_PUSH || type == OP_UNSHIFT)
+ && !kid->op_sibling && ckWARN(WARN_SYNTAX))
+ Perl_warner(aTHX_ WARN_SYNTAX,
+ "Useless use of %s with no values",
+ PL_op_desc[type]);
+
if (kid->op_type == OP_CONST &&
(kid->op_private & OPpCONST_BARE))
{
OP *newop = newGVOP(OP_GV, 0,
gv_fetchpv(SvPVx(((SVOP*)kid)->op_sv, n_a), TRUE,
SVt_PVIO) );
+ if (kid == cLISTOPo->op_last)
+ cLISTOPo->op_last = newop;
op_free(kid);
kid = newop;
}
else if (kid->op_type == OP_READLINE) {
/* neophyte patrol: open(<FH>), close(<FH>) etc. */
- bad_type(numargs, "HANDLE", PL_op_desc[o->op_type], kid);
+ bad_type(numargs, "HANDLE", OP_DESC(o), kid);
}
else {
I32 flags = OPf_SPECIAL;
}
o->op_private |= numargs;
if (kid)
- return too_many_arguments(o,PL_op_desc[o->op_type]);
+ return too_many_arguments(o,OP_DESC(o));
listkids(o);
}
else if (PL_opargs[type] & OA_DEFGV) {
while (oa & OA_OPTIONAL)
oa >>= 4;
if (oa && oa != OA_LIST)
- return too_few_arguments(o,PL_op_desc[o->op_type]);
+ return too_few_arguments(o,OP_DESC(o));
}
return o;
}
if ((o->op_flags & OPf_KIDS) && !cLISTOPo->op_first->op_sibling)
append_elem(OP_GLOB, o, newDEFSVOP());
- if (!((gv = gv_fetchpv("glob", FALSE, SVt_PVCV)) && GvIMPORTED_CV(gv)))
+ if (!((gv = gv_fetchpv("glob", FALSE, SVt_PVCV))
+ && GvCVu(gv) && GvIMPORTED_CV(gv)))
+ {
gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV);
+ }
#if !defined(PERL_EXTERNAL_GLOB)
/* XXX this can be tightened up and made more failsafe. */
if (!gv) {
+ GV *glob_gv;
ENTER;
- Perl_load_module(aTHX_ 0, newSVpvn("File::Glob", 10), Nullsv,
- /* null-terminated import list */
- newSVpvn(":globally", 9), Nullsv);
+ Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT,
+ newSVpvn("File::Glob", 10), Nullsv, Nullsv, Nullsv);
gv = gv_fetchpv("CORE::GLOBAL::glob", FALSE, SVt_PVCV);
+ glob_gv = gv_fetchpv("File::Glob::csh_glob", FALSE, SVt_PVCV);
+ GvCV(gv) = GvCV(glob_gv);
+ SvREFCNT_inc((SV*)GvCV(gv));
+ GvIMPORTED_CV_on(gv);
LEAVE;
}
#endif /* PERL_EXTERNAL_GLOB */
- if (gv && GvIMPORTED_CV(gv)) {
+ if (gv && GvCVu(gv) && GvIMPORTED_CV(gv)) {
append_elem(OP_GLOB, o,
newSVOP(OP_CONST, 0, newSViv(PL_glob_index++)));
o->op_type = OP_LIST;
kid = cLISTOPo->op_first->op_sibling;
if (!kid || !kid->op_sibling)
- return too_few_arguments(o,PL_op_desc[o->op_type]);
+ return too_few_arguments(o,OP_DESC(o));
for (kid = kid->op_sibling; kid; kid = kid->op_sibling)
mod(kid, OP_GREPSTART);
OP *
Perl_ck_defined(pTHX_ OP *o) /* 19990527 MJD */
{
- dTHR;
if ((o->op_flags & OPf_KIDS) && ckWARN(WARN_DEPRECATED)) {
switch (cUNOPo->op_first->op_type) {
case OP_RV2AV:
if (!kid)
append_elem(o->op_type, o, newDEFSVOP());
- o = listkids(o);
-
- o->op_private = 0;
-#ifdef USE_LOCALE
- if (PL_hints & HINT_LOCALE)
- o->op_private |= OPpLOCALE;
-#endif
-
- return o;
-}
-
-OP *
-Perl_ck_fun_locale(pTHX_ OP *o)
-{
- o = ck_fun(o);
-
- o->op_private = 0;
-#ifdef USE_LOCALE
- if (PL_hints & HINT_LOCALE)
- o->op_private |= OPpLOCALE;
-#endif
-
- return o;
+ return listkids(o);
}
OP *
}
OP *
-Perl_ck_scmp(pTHX_ OP *o)
-{
- o->op_private = 0;
-#ifdef USE_LOCALE
- if (PL_hints & HINT_LOCALE)
- o->op_private |= OPpLOCALE;
-#endif
-
- return o;
-}
-
-OP *
Perl_ck_match(pTHX_ OP *o)
{
o->op_private |= OPpRUNTIME;
OP *
Perl_ck_require(pTHX_ OP *o)
{
+ GV* gv;
+
if (o->op_flags & OPf_KIDS) { /* Shall we supply missing .pm? */
SVOP *kid = (SVOP*)cUNOPo->op_first;
sv_catpvn(kid->op_sv, ".pm", 3);
}
}
+
+ /* handle override, if any */
+ gv = gv_fetchpv("require", FALSE, SVt_PVCV);
+ if (!(gv && GvCVu(gv) && GvIMPORTED_CV(gv)))
+ gv = gv_fetchpv("CORE::GLOBAL::require", FALSE, SVt_PVCV);
+
+ if (gv && GvCVu(gv) && GvIMPORTED_CV(gv)) {
+ OP *kid = cUNOPo->op_first;
+ cUNOPo->op_first = 0;
+ op_free(o);
+ return ck_subr(newUNOP(OP_ENTERSUB, OPf_STACKED,
+ append_elem(OP_LIST, kid,
+ scalar(newUNOP(OP_RV2CV, 0,
+ newGVOP(OP_GV, 0,
+ gv))))));
+ }
+
return ck_fun(o);
}
+OP *
+Perl_ck_return(pTHX_ OP *o)
+{
+ OP *kid;
+ if (CvLVALUE(PL_compcv)) {
+ for (kid = cLISTOPo->op_first->op_sibling; kid; kid = kid->op_sibling)
+ mod(kid, OP_LEAVESUBLV);
+ }
+ return o;
+}
+
#if 0
OP *
Perl_ck_retarget(pTHX_ OP *o)
OP *argop;
op_free(o);
-#ifdef USE_THREADS
+#ifdef USE_5005THREADS
if (!CvUNIQUE(PL_compcv)) {
argop = newOP(OP_PADAV, OPf_REF);
argop->op_targ = 0; /* PL_curpad[0] is @_ */
argop = newUNOP(OP_RV2AV, 0,
scalar(newGVOP(OP_GV, 0, !CvUNIQUE(PL_compcv) ?
PL_defgv : gv_fetchpv("ARGV", TRUE, SVt_PVAV))));
-#endif /* USE_THREADS */
+#endif /* USE_5005THREADS */
return newUNOP(type, 0, scalar(argop));
}
return scalar(modkids(ck_fun(o), type));
Perl_ck_sort(pTHX_ OP *o)
{
OP *firstkid;
- o->op_private = 0;
-#ifdef USE_LOCALE
- if (PL_hints & HINT_LOCALE)
- o->op_private |= OPpLOCALE;
-#endif
if (o->op_type == OP_SORT && o->op_flags & OPf_STACKED)
simplify_sort(o);
firstkid = cLISTOPo->op_first->op_sibling; /* get past pushmark */
if (o->op_flags & OPf_STACKED) { /* may have been cleared */
- OP *k;
+ OP *k = NULL;
OP *kid = cUNOPx(firstkid)->op_first; /* get past null */
if (kid->op_type == OP_SCOPE || kid->op_type == OP_LEAVE) {
}
else if (kid->op_type == OP_LEAVE) {
if (o->op_type == OP_SORT) {
- null(kid); /* wipe out leave */
+ op_null(kid); /* wipe out leave */
kid->op_next = kid;
for (k = kLISTOP->op_first->op_next; k; k = k->op_next) {
kid->op_next = 0; /* just disconnect the leave */
k = kLISTOP->op_first;
}
- peep(k);
+ CALL_PEEP(k);
kid = firstkid;
if (o->op_type == OP_SORT) {
o->op_flags |= OPf_SPECIAL;
}
else if (kid->op_type == OP_RV2SV || kid->op_type == OP_PADSV)
- null(firstkid);
+ op_null(firstkid);
firstkid = firstkid->op_sibling;
}
STATIC void
S_simplify_sort(pTHX_ OP *o)
{
- dTHR;
register OP *kid = cLISTOPo->op_first->op_sibling; /* get past pushmark */
OP *k;
int reversed;
kid = cLISTOPo->op_first->op_sibling;
cLISTOPo->op_first->op_sibling = kid->op_sibling; /* bypass old block */
op_free(kid); /* then delete it */
- cLISTOPo->op_children--;
}
OP *
scalar(kid);
if (kid->op_sibling)
- return too_many_arguments(o,PL_op_desc[o->op_type]);
+ return too_many_arguments(o,OP_DESC(o));
return o;
}
OP *kid = cLISTOPo->op_first->op_sibling;
if (kid && kid->op_type == OP_MATCH) {
char *pmstr = "STRING";
- if (kPMOP->op_pmregexp)
- pmstr = kPMOP->op_pmregexp->precomp;
+ if (PM_GETRE(kPMOP))
+ pmstr = PM_GETRE(kPMOP)->precomp;
Perl_warner(aTHX_ WARN_SYNTAX,
"/%s/ should probably be written as \"%s\"",
pmstr, pmstr);
OP *
Perl_ck_subr(pTHX_ OP *o)
{
- dTHR;
OP *prev = ((cUNOPo->op_first->op_sibling)
? cUNOPo : ((UNOP*)cUNOPo->op_first))->op_first;
OP *o2 = prev->op_sibling;
GV *namegv = 0;
int optional = 0;
I32 arg = 0;
+ I32 contextclass = 0;
+ char *e = 0;
STRLEN n_a;
o->op_private |= OPpENTERSUB_HASTARG;
if (cvop->op_type == OP_RV2CV) {
SVOP* tmpop;
o->op_private |= (cvop->op_private & OPpENTERSUB_AMPER);
- null(cvop); /* disable rv2cv */
+ op_null(cvop); /* disable rv2cv */
tmpop = (SVOP*)((UNOP*)cvop)->op_first;
if (tmpop->op_type == OP_GV && !(o->op_private & OPpENTERSUB_AMPER)) {
GV *gv = cGVOPx_gv(tmpop);
}
scalar(o2);
break;
+ case '[': case ']':
+ goto oops;
+ break;
case '\\':
proto++;
arg++;
+ again:
switch (*proto++) {
+ case '[':
+ if (contextclass++ == 0) {
+ e = strchr(proto, ']');
+ if (!e || e == proto)
+ goto oops;
+ }
+ else
+ goto oops;
+ goto again;
+ break;
+ case ']':
+ if (contextclass) {
+ char *p = proto;
+ char s = *p;
+ contextclass = 0;
+ *p = '\0';
+ while (*--p != '[');
+ bad_type(arg, Perl_form(aTHX_ "one of %s", p),
+ gv_ename(namegv), o2);
+ *proto = s;
+ } else
+ goto oops;
+ break;
case '*':
- if (o2->op_type != OP_RV2GV)
- bad_type(arg, "symbol", gv_ename(namegv), o2);
- goto wrapref;
+ if (o2->op_type == OP_RV2GV)
+ goto wrapref;
+ if (!contextclass)
+ bad_type(arg, "symbol", gv_ename(namegv), o2);
+ break;
case '&':
- if (o2->op_type != OP_ENTERSUB)
- bad_type(arg, "subroutine entry", gv_ename(namegv), o2);
- goto wrapref;
+ if (o2->op_type == OP_ENTERSUB)
+ goto wrapref;
+ if (!contextclass)
+ bad_type(arg, "subroutine entry", gv_ename(namegv), o2);
+ break;
case '$':
- if (o2->op_type != OP_RV2SV
- && o2->op_type != OP_PADSV
- && o2->op_type != OP_HELEM
- && o2->op_type != OP_AELEM
- && o2->op_type != OP_THREADSV)
- {
+ if (o2->op_type == OP_RV2SV ||
+ o2->op_type == OP_PADSV ||
+ o2->op_type == OP_HELEM ||
+ o2->op_type == OP_AELEM ||
+ o2->op_type == OP_THREADSV)
+ goto wrapref;
+ if (!contextclass)
bad_type(arg, "scalar", gv_ename(namegv), o2);
- }
- goto wrapref;
+ break;
case '@':
- if (o2->op_type != OP_RV2AV && o2->op_type != OP_PADAV)
+ if (o2->op_type == OP_RV2AV ||
+ o2->op_type == OP_PADAV)
+ goto wrapref;
+ if (!contextclass)
bad_type(arg, "array", gv_ename(namegv), o2);
- goto wrapref;
+ break;
case '%':
- if (o2->op_type != OP_RV2HV && o2->op_type != OP_PADHV)
- bad_type(arg, "hash", gv_ename(namegv), o2);
- wrapref:
+ if (o2->op_type == OP_RV2HV ||
+ o2->op_type == OP_PADHV)
+ goto wrapref;
+ if (!contextclass)
+ bad_type(arg, "hash", gv_ename(namegv), o2);
+ break;
+ wrapref:
{
OP* kid = o2;
OP* sib = kid->op_sibling;
o2->op_sibling = sib;
prev->op_sibling = o2;
}
+ if (contextclass && e) {
+ proto = e + 1;
+ contextclass = 0;
+ }
break;
default: goto oops;
}
+ if (contextclass)
+ goto again;
break;
case ' ':
proto++;
default:
oops:
Perl_croak(aTHX_ "Malformed prototype for %s: %s",
- gv_ename(namegv), SvPV((SV*)cv, n_a));
+ gv_ename(namegv), SvPV((SV*)cv, n_a));
}
}
else
void
Perl_peep(pTHX_ register OP *o)
{
- dTHR;
register OP* oldop = 0;
STRLEN n_a;
- OP *last_composite = Nullop;
if (!o || o->op_seq)
return;
case OP_DBSTATE:
PL_curcop = ((COP*)o); /* for warnings */
o->op_seq = PL_op_seqmax++;
- last_composite = Nullop;
break;
case OP_CONST:
PADOFFSET ix = pad_alloc(OP_CONST, SVs_PADTMP);
if (SvPADTMP(cSVOPo->op_sv)) {
/* If op_sv is already a PADTMP then it is being used by
- * another pad, so make a copy. */
+ * some pad, so make a copy. */
sv_setsv(PL_curpad[ix],cSVOPo->op_sv);
SvREADONLY_on(PL_curpad[ix]);
SvREFCNT_dec(cSVOPo->op_sv);
SvREFCNT_dec(PL_curpad[ix]);
SvPADTMP_on(cSVOPo->op_sv);
PL_curpad[ix] = cSVOPo->op_sv;
+ /* XXX I don't know how this isn't readonly already. */
+ SvREADONLY_on(PL_curpad[ix]);
}
cSVOPo->op_sv = Nullsv;
o->op_targ = ix;
o->op_private |= OPpTARGET_MY;
}
}
- null(o->op_next);
+ op_null(o->op_next);
}
ignore_optimization:
o->op_seq = PL_op_seqmax++;
{
PL_curcop = ((COP*)o);
}
- goto nothin;
+ /* XXX: We avoid setting op_seq here to prevent later calls
+ to peep() from mistakenly concluding that optimisation
+ has already occurred. This doesn't fix the real problem,
+ though (See 20010220.007). AMS 20010719 */
+ if (oldop && o->op_next) {
+ oldop->op_next = o->op_next;
+ continue;
+ }
+ break;
case OP_SCALAR:
case OP_LINESEQ:
case OP_SCOPE:
case OP_GV:
if (o->op_next->op_type == OP_RV2SV) {
if (!(o->op_next->op_private & OPpDEREF)) {
- null(o->op_next);
+ op_null(o->op_next);
o->op_private |= o->op_next->op_private & (OPpLVAL_INTRO
| OPpOUR_INTRO);
o->op_next = o->op_next->op_next;
else if (o->op_next->op_type == OP_RV2AV) {
OP* pop = o->op_next->op_next;
IV i;
- if (pop->op_type == OP_CONST &&
+ if (pop && pop->op_type == OP_CONST &&
(PL_op = pop->op_next) &&
pop->op_next->op_type == OP_AELEM &&
!(pop->op_next->op_private &
- (OPpLVAL_INTRO|OPpLVAL_DEFER|OPpDEREF)) &&
- (i = SvIV(((SVOP*)pop)->op_sv) - PL_compiling.cop_arybase)
+ (OPpLVAL_INTRO|OPpLVAL_DEFER|OPpDEREF|OPpMAYBE_LVSUB)) &&
+ (i = SvIV(((SVOP*)pop)->op_sv) - PL_curcop->cop_arybase)
<= 255 &&
i >= 0)
{
GV *gv;
- null(o->op_next);
- null(pop->op_next);
- null(pop);
+ op_null(o->op_next);
+ op_null(pop->op_next);
+ op_null(pop);
o->op_flags |= pop->op_next->op_flags & OPf_MOD;
o->op_next = pop->op_next->op_next;
o->op_type = OP_AELEMFAST;
SvPV_nolen(sv));
}
}
+ else if (o->op_next->op_type == OP_READLINE
+ && o->op_next->op_next->op_type == OP_CONCAT
+ && (o->op_next->op_next->op_flags & OPf_STACKED))
+ {
+ /* Turn "$a .= <FH>" into an OP_RCATLINE. AMS 20010917 */
+ o->op_type = OP_RCATLINE;
+ o->op_flags |= OPf_STACKED;
+ o->op_ppaddr = PL_ppaddr[OP_RCATLINE];
+ op_null(o->op_next->op_next);
+ op_null(o->op_next);
+ }
o->op_seq = PL_op_seqmax++;
break;
o->op_seq = PL_op_seqmax++;
while (cLOGOP->op_other->op_type == OP_NULL)
cLOGOP->op_other = cLOGOP->op_other->op_next;
- peep(cLOGOP->op_other);
+ peep(cLOGOP->op_other); /* Recursive calls are not replaced by fptr calls */
break;
case OP_ENTERLOOP:
+ case OP_ENTERITER:
o->op_seq = PL_op_seqmax++;
+ while (cLOOP->op_redoop->op_type == OP_NULL)
+ cLOOP->op_redoop = cLOOP->op_redoop->op_next;
peep(cLOOP->op_redoop);
+ while (cLOOP->op_nextop->op_type == OP_NULL)
+ cLOOP->op_nextop = cLOOP->op_nextop->op_next;
peep(cLOOP->op_nextop);
+ while (cLOOP->op_lastop->op_type == OP_NULL)
+ cLOOP->op_lastop = cLOOP->op_lastop->op_next;
peep(cLOOP->op_lastop);
break;
case OP_MATCH:
case OP_SUBST:
o->op_seq = PL_op_seqmax++;
+ while (cPMOP->op_pmreplstart &&
+ cPMOP->op_pmreplstart->op_type == OP_NULL)
+ cPMOP->op_pmreplstart = cPMOP->op_pmreplstart->op_next;
peep(cPMOP->op_pmreplstart);
break;
svp = cSVOPx_svp(((BINOP*)o)->op_last);
if ((!SvFAKE(sv = *svp) || !SvREADONLY(sv)) && !IS_PADCONST(sv)) {
key = SvPV(sv, keylen);
- lexname = newSVpvn_share(key, keylen, 0);
+ lexname = newSVpvn_share(key,
+ SvUTF8(sv) ? -(I32)keylen : keylen,
+ 0);
SvREFCNT_dec(sv);
*svp = lexname;
}
if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV)
break;
lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE);
- if (!SvOBJECT(lexname))
+ if (!(SvFLAGS(lexname) & SVpad_TYPED))
break;
fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE);
if (!fields || !GvHV(*fields))
break;
key = SvPV(*svp, keylen);
- indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE);
+ indsvp = hv_fetch(GvHV(*fields), key,
+ SvUTF8(*svp) ? -(I32)keylen : keylen, FALSE);
if (!indsvp) {
Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" in variable %s of type %s",
key, SvPV(lexname, n_a), HvNAME(SvSTASH(lexname)));
if (rop->op_type != OP_RV2HV || rop->op_first->op_type != OP_PADSV)
break;
lexname = *av_fetch(PL_comppad_name, rop->op_first->op_targ, TRUE);
- if (!SvOBJECT(lexname))
+ if (!(SvFLAGS(lexname) & SVpad_TYPED))
break;
fields = (GV**)hv_fetch(SvSTASH(lexname), "FIELDS", 6, FALSE);
if (!fields || !GvHV(*fields))
key_op = (SVOP*)key_op->op_sibling) {
svp = cSVOPx_svp(key_op);
key = SvPV(*svp, keylen);
- indsvp = hv_fetch(GvHV(*fields), key, keylen, FALSE);
+ indsvp = hv_fetch(GvHV(*fields), key,
+ SvUTF8(*svp) ? -(I32)keylen : keylen, FALSE);
if (!indsvp) {
Perl_croak(aTHX_ "No such pseudo-hash field \"%s\" "
"in variable %s of type %s",
break;
}
- case OP_RV2AV:
- case OP_RV2HV:
- if (!(o->op_flags & OPf_WANT)
- || (o->op_flags & OPf_WANT) == OPf_WANT_LIST)
- {
- last_composite = o;
- }
- o->op_seq = PL_op_seqmax++;
- break;
-
- case OP_RETURN:
- if (o->op_next && o->op_next->op_type != OP_LEAVESUBLV) {
- o->op_seq = PL_op_seqmax++;
- break;
- }
- /* FALL THROUGH */
-
- case OP_LEAVESUBLV:
- if (last_composite) {
- OP *r = last_composite;
-
- while (r->op_sibling)
- r = r->op_sibling;
- if (r->op_next == o
- || (r->op_next->op_type == OP_LIST
- && r->op_next->op_next == o))
- {
- if (last_composite->op_type == OP_RV2AV)
- yyerror("Lvalue subs returning arrays not implemented yet");
- else
- yyerror("Lvalue subs returning hashes not implemented yet");
- ;
- }
- }
- /* FALL THROUGH */
-
default:
o->op_seq = PL_op_seqmax++;
break;
LEAVE;
}
+
+
+char* Perl_custom_op_name(pTHX_ OP* o)
+{
+ IV index = PTR2IV(o->op_ppaddr);
+ SV* keysv;
+ HE* he;
+
+ if (!PL_custom_op_names) /* This probably shouldn't happen */
+ return PL_op_name[OP_CUSTOM];
+
+ keysv = sv_2mortal(newSViv(index));
+
+ he = hv_fetch_ent(PL_custom_op_names, keysv, 0, 0);
+ if (!he)
+ return PL_op_name[OP_CUSTOM]; /* Don't know who you are */
+
+ return SvPV_nolen(HeVAL(he));
+}
+
+char* Perl_custom_op_desc(pTHX_ OP* o)
+{
+ IV index = PTR2IV(o->op_ppaddr);
+ SV* keysv;
+ HE* he;
+
+ if (!PL_custom_op_descs)
+ return PL_op_desc[OP_CUSTOM];
+
+ keysv = sv_2mortal(newSViv(index));
+
+ he = hv_fetch_ent(PL_custom_op_descs, keysv, 0, 0);
+ if (!he)
+ return PL_op_desc[OP_CUSTOM];
+
+ return SvPV_nolen(HeVAL(he));
+}
+
+
#include "XSUB.h"
/* Efficient sub that returns a constant scalar value. */
static void
-const_sv_xsub(pTHXo_ CV* cv)
+const_sv_xsub(pTHX_ CV* cv)
{
dXSARGS;
- ST(0) = sv_2mortal(newSVsv((SV*)XSANY.any_ptr));
+ if (items != 0) {
+#if 0
+ Perl_croak(aTHX_ "usage: %s::%s()",
+ HvNAME(GvSTASH(CvGV(cv))), GvNAME(CvGV(cv)));
+#endif
+ }
+ EXTEND(sp, 1);
+ ST(0) = (SV*)XSANY.any_ptr;
XSRETURN(1);
}
+