}
STATIC OP *
-S_too_few_arguments_sv(pTHX_ OP *o, SV *namesv, U32 flags)
-{
- PERL_ARGS_ASSERT_TOO_FEW_ARGUMENTS_SV;
- yyerror_pv(Perl_form(aTHX_ "Not enough arguments for %"SVf, SVfARG(namesv)),
- SvUTF8(namesv) | flags);
- return o;
-}
-
-STATIC OP *
S_too_few_arguments_pv(pTHX_ OP *o, const char* name, U32 flags)
{
PERL_ARGS_ASSERT_TOO_FEW_ARGUMENTS_PV;
return o;
}
-STATIC OP *
-S_too_many_arguments_sv(pTHX_ OP *o, SV *namesv, U32 flags)
-{
- PERL_ARGS_ASSERT_TOO_MANY_ARGUMENTS_SV;
-
- yyerror_pv(Perl_form(aTHX_ "Too many arguments for %"SVf, SVfARG(namesv)),
- SvUTF8(namesv) | flags);
- return o;
-}
-
STATIC void
S_bad_type_pv(pTHX_ I32 n, const char *t, const char *name, U32 flags, const OP *kid)
{
return;
type = o->op_type;
+
+ /* an op should only ever acquire op_private flags that we know about.
+ * If this fails, you may need to fix something in regen/op_private */
+ assert(!(o->op_private & ~PL_op_private_valid[type]));
+
if (o->op_private & OPpREFCOUNTED) {
switch (type) {
case OP_LEAVESUB:
else { /* Compile-time error message: */
OP *kid = cUNOPo->op_first;
CV *cv;
+ GV *gv;
if (kid->op_type != OP_PUSHMARK) {
if (kid->op_type != OP_NULL || kid->op_targ != OP_LIST)
break;
}
- cv = GvCV(kGVOP_gv);
+ gv = kGVOP_gv;
+ cv = isGV(gv)
+ ? GvCV(gv)
+ : SvROK(gv) && SvTYPE(SvRV(gv)) == SVt_PVCV
+ ? MUTABLE_CV(SvRV(gv))
+ : NULL;
if (!cv)
break;
if (CvLVALUE(cv))
SV * const oldwarnhook = PL_warnhook;
SV * const olddiehook = PL_diehook;
COP not_compiling;
+ U8 oldwarn = PL_dowarn;
dJMPENV;
PERL_ARGS_ASSERT_FOLD_CONSTANTS;
PL_diehook = NULL;
JMPENV_PUSH(ret);
+ /* Effective $^W=1. */
+ if ( ! (PL_dowarn & G_WARN_ALL_MASK))
+ PL_dowarn |= G_WARN_ON;
+
switch (ret) {
case 0:
CALLRUNOPS(aTHX);
Perl_croak(aTHX_ "panic: fold_constants JMPENV_PUSH returned %d", ret);
}
JMPENV_POP;
+ PL_dowarn = oldwarn;
PL_warnhook = oldwarnhook;
PL_diehook = olddiehook;
PL_curcop = &PL_compiling;
return newGIVWHENOP(cond_op, block, OP_ENTERWHEN, OP_LEAVEWHEN, 0);
}
+/* must not conflict with SVf_UTF8 */
+#define CV_CKPROTO_CURSTASH 0x1
+
void
Perl_cv_ckproto_len_flags(pTHX_ const CV *cv, const GV *gv, const char *p,
const STRLEN len, const U32 flags)
{
SV *name = NULL, *msg;
- const char * cvp = SvROK(cv) ? "" : CvPROTO(cv);
+ const char * cvp = SvROK(cv)
+ ? SvTYPE(SvRV_const(cv)) == SVt_PVCV
+ ? (cv = (const CV *)SvRV_const(cv), CvPROTO(cv))
+ : ""
+ : CvPROTO(cv);
STRLEN clen = CvPROTOLEN(cv), plen = len;
PERL_ARGS_ASSERT_CV_CKPROTO_LEN_FLAGS;
gv_efullname3(name = sv_newmortal(), gv, NULL);
else if (SvPOK(gv) && *SvPVX((SV *)gv) == '&')
name = newSVpvn_flags(SvPVX((SV *)gv)+1, SvCUR(gv)-1, SvUTF8(gv)|SVs_TEMP);
+ else if (flags & CV_CKPROTO_CURSTASH || SvROK(gv)) {
+ name = sv_2mortal(newSVhek(HvNAME_HEK(PL_curstash)));
+ sv_catpvs(name, "::");
+ if (SvROK(gv)) {
+ assert (SvTYPE(SvRV_const(gv)) == SVt_PVCV);
+ assert (CvNAMED(SvRV_const(gv)));
+ sv_cathek(name, CvNAME_HEK(MUTABLE_CV(SvRV_const(gv))));
+ }
+ else sv_catsv(name, (SV *)gv);
+ }
else name = (SV *)gv;
}
sv_setpvs(msg, "Prototype mismatch:");
return NULL;
if (type == OP_CONST && cSVOPo->op_sv)
sv = cSVOPo->op_sv;
+ else if (type == OP_UNDEF && !o->op_private) {
+ sv = newSV(0);
+ SAVEFREESV(sv);
+ }
else if (cv && type == OP_CONST) {
sv = PAD_BASE_SV(CvPADLIST(cv), o->op_targ);
if (!sv)
if (CvNAMED(*spot))
hek = CvNAME_HEK(*spot);
else {
+ dVAR;
+ U32 hash;
+ PERL_HASH(hash, PadnamePV(name)+1, PadnameLEN(name)-1);
CvNAME_HEK_set(*spot, hek =
share_hek(
PadnamePV(name)+1,
- PadnameLEN(name)-1 * (PadnameUTF8(name) ? -1 : 1), 0
+ PadnameLEN(name)-1 * (PadnameUTF8(name) ? -1 : 1), hash
)
);
+ CvLEXICAL_on(*spot);
}
if (mg) {
assert(mg->mg_obj);
*spot = cv;
}
setname:
+ CvLEXICAL_on(cv);
if (!CvNAME_HEK(cv)) {
- CvNAME_HEK_set(cv,
- hek
- ? share_hek_hek(hek)
- : share_hek(PadnamePV(name)+1,
+ if (hek) (void)share_hek_hek(hek);
+ else {
+ dVAR;
+ U32 hash;
+ PERL_HASH(hash, PadnamePV(name)+1, PadnameLEN(name)-1);
+ hek = share_hek(PadnamePV(name)+1,
PadnameLEN(name)-1 * (PadnameUTF8(name) ? -1 : 1),
- 0)
- );
+ hash);
+ }
+ CvNAME_HEK_set(cv, hek);
}
if (const_sv) goto clone;
/* If the subroutine has no body, no attributes, and no builtin attributes
then it's just a sub declaration, and we may be able to get away with
storing with a placeholder scalar in the symbol table, rather than a
- full GV and CV. If anything is present then it will take a full CV to
+ full CV. If anything is present then it will take a full CV to
store it. */
const I32 gv_fetch_flags
= ec ? GV_NOADD_NOINIT :
#ifdef PERL_DEBUG_READONLY_OPS
OPSLAB *slab = NULL;
#endif
+ bool special = FALSE;
if (o_is_gv) {
gv = (GV*)o;
o = NULL;
has_name = TRUE;
} else if (name) {
- gv = gv_fetchsv(cSVOPo->op_sv, gv_fetch_flags, SVt_PVCV);
+ /* Try to optimise and avoid creating a GV. Instead, the CV’s name
+ hek and CvSTASH pointer together can imply the GV. If the name
+ contains a package name, then GvSTASH(CvGV(cv)) may differ from
+ CvSTASH, so forego the optimisation if we find any.
+ Also, we may be called from load_module at run time, so
+ PL_curstash (which sets CvSTASH) may not point to the stash the
+ sub is stored in. */
+ const I32 flags =
+ ec ? GV_NOADD_NOINIT
+ : PL_curstash != CopSTASH(PL_curcop)
+ || memchr(name, ':', namlen) || memchr(name, '\'', namlen)
+ ? gv_fetch_flags
+ : GV_ADDMULTI | GV_NOINIT;
+ gv = gv_fetchsv(cSVOPo->op_sv, flags, SVt_PVCV);
has_name = TRUE;
} else if (PERLDB_NAMEANON && CopLINE(PL_curcop)) {
SV * const sv = sv_newmortal();
has_name = FALSE;
}
if (!ec)
- move_proto_attr(&proto, &attrs, gv);
+ move_proto_attr(&proto, &attrs,
+ isGV(gv) ? gv : (GV *)cSVOPo->op_sv);
if (proto) {
assert(proto->op_type == OP_CONST);
goto done;
}
- if (SvTYPE(gv) != SVt_PVGV) { /* Maybe prototype now, and had at
- maximum a prototype before. */
+ if (!block && SvTYPE(gv) != SVt_PVGV) {
+ /* If we are not defining a new sub and the existing one is not a
+ full GV + CV... */
+ if (attrs || (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS)) {
+ /* We are applying attributes to an existing sub, so we need it
+ upgraded if it is a constant. */
+ if (SvROK(gv) && SvTYPE(SvRV(gv)) != SVt_PVCV)
+ gv_init_pvn(gv, PL_curstash, name, namlen,
+ SVf_UTF8 * name_is_utf8);
+ }
+ else { /* Maybe prototype now, and had at maximum
+ a prototype or const/sub ref before. */
if (SvTYPE(gv) > SVt_NULL) {
cv_ckproto_len_flags((const CV *)gv,
o ? (const GV *)cSVOPo->op_sv : NULL, ps,
SvREFCNT_dec(PL_compcv);
cv = PL_compcv = NULL;
goto done;
+ }
}
- cv = (!name || GvCVGEN(gv)) ? NULL : GvCV(gv);
+ cv = (!name || (isGV(gv) && GvCVGEN(gv)))
+ ? NULL
+ : isGV(gv)
+ ? GvCV(gv)
+ : SvROK(gv) && SvTYPE(SvRV(gv)) == SVt_PVCV
+ ? (CV *)SvRV(gv)
+ : NULL;
+
if (!block || !ps || *ps || attrs
|| (CvFLAGS(PL_compcv) & CVf_BUILTIN_ATTRS)
else
const_sv = op_const_sv(block, NULL);
+ if (SvPOK(gv) || (SvROK(gv) && SvTYPE(SvRV(gv)) != SVt_PVCV)) {
+ assert (block);
+ cv_ckproto_len_flags((const CV *)gv,
+ o ? (const GV *)cSVOPo->op_sv : NULL, ps,
+ ps_len, ps_utf8|CV_CKPROTO_CURSTASH);
+ if (SvROK(gv)) {
+ /* All the other code for sub redefinition warnings expects the
+ clobbered sub to be a CV. Instead of making all those code
+ paths more complex, just inline the RV version here. */
+ const line_t oldline = CopLINE(PL_curcop);
+ assert(IN_PERL_COMPILETIME);
+ if (PL_parser && PL_parser->copline != NOLINE)
+ /* This ensures that warnings are reported at the first
+ line of a redefinition, not the last. */
+ CopLINE_set(PL_curcop, PL_parser->copline);
+ /* protect against fatal warnings leaking compcv */
+ SAVEFREESV(PL_compcv);
+
+ if (ckWARN(WARN_REDEFINE)
+ || ( ckWARN_d(WARN_REDEFINE)
+ && ( !const_sv || SvRV(gv) == const_sv
+ || sv_cmp(SvRV(gv), const_sv) )))
+ Perl_warner(aTHX_ packWARN(WARN_REDEFINE),
+ "Constant subroutine %"SVf" redefined",
+ SVfARG(cSVOPo->op_sv));
+
+ SvREFCNT_inc_simple_void_NN(PL_compcv);
+ CopLINE_set(PL_curcop, oldline);
+ SvREFCNT_dec(SvRV(gv));
+ }
+ }
+
if (cv) {
const bool exists = CvROOT(cv) || CvXSUB(cv);
if (exists || SvPOK(cv))
cv_ckproto_len_flags(cv, gv, ps, ps_len, ps_utf8);
/* already defined (or promised)? */
- if (exists || GvASSUMECV(gv)) {
+ if (exists || (isGV(gv) && GvASSUMECV(gv))) {
if (S_already_defined(aTHX_ cv, block, o, NULL, &const_sv))
cv = NULL;
else {
CvISXSUB_on(cv);
}
else {
- if (name) GvCV_set(gv, NULL);
- cv = newCONSTSUB_flags(
- NULL, name, namlen, name_is_utf8 ? SVf_UTF8 : 0,
- const_sv
- );
+ if (isGV(gv)) {
+ if (name) GvCV_set(gv, NULL);
+ cv = newCONSTSUB_flags(
+ NULL, name, namlen, name_is_utf8 ? SVf_UTF8 : 0,
+ const_sv
+ );
+ }
+ else {
+ if (!SvROK(gv)) {
+ SV_CHECK_THINKFIRST_COW_DROP((SV *)gv);
+ prepare_SV_for_RV((SV *)gv);
+ SvOK_off((SV *)gv);
+ SvROK_on(gv);
+ }
+ SvRV_set(gv, const_sv);
+ }
}
op_free(block);
SvREFCNT_dec(PL_compcv);
CvFLAGS(cv) & (CVf_SLABBED|CVf_WEAKOUTSIDE);
OP * const cvstart = CvSTART(cv);
- CvGV_set(cv,gv);
- assert(!CvCVGV_RC(cv));
- assert(CvGV(cv) == gv);
+ if (isGV(gv)) {
+ CvGV_set(cv,gv);
+ assert(!CvCVGV_RC(cv));
+ assert(CvGV(cv) == gv);
+ }
+ else {
+ U32 hash;
+ PERL_HASH(hash, name, namlen);
+ CvNAME_HEK_set(cv,
+ share_hek(name,
+ name_is_utf8 ? -namlen : namlen,
+ hash));
+ }
SvPOK_off(cv);
- CvFLAGS(cv) = CvFLAGS(PL_compcv) | existing_builtin_attrs;
+ CvFLAGS(cv) = CvFLAGS(PL_compcv) | existing_builtin_attrs
+ | CvNAMED(cv);
CvOUTSIDE(cv) = CvOUTSIDE(PL_compcv);
CvOUTSIDE_SEQ(cv) = CvOUTSIDE_SEQ(PL_compcv);
CvPADLIST(cv) = CvPADLIST(PL_compcv);
}
else {
cv = PL_compcv;
- if (name) {
+ if (name && isGV(gv)) {
GvCV_set(gv, cv);
GvCVGEN(gv) = 0;
if (HvENAME_HEK(GvSTASH(gv)))
/* sub Foo::bar { (shift)+1 } */
gv_method_changed(gv);
}
+ else if (name) {
+ if (!SvROK(gv)) {
+ SV_CHECK_THINKFIRST_COW_DROP((SV *)gv);
+ prepare_SV_for_RV((SV *)gv);
+ SvOK_off((SV *)gv);
+ SvROK_on(gv);
+ }
+ SvRV_set(gv, (SV *)cv);
+ }
}
- if (!CvGV(cv)) {
- CvGV_set(cv, gv);
+ if (!CvHASGV(cv)) {
+ if (isGV(gv)) CvGV_set(cv, gv);
+ else {
+ U32 hash;
+ PERL_HASH(hash, name, namlen);
+ CvNAME_HEK_set(cv, share_hek(name,
+ name_is_utf8 ? -namlen : namlen,
+ hash));
+ }
CvFILE_set_from_cop(cv, PL_curcop);
CvSTASH_set(cv, PL_curstash);
}
attrs:
if (attrs) {
/* Need to do a C<use attributes $stash_of_cv,\&cv,@attrs>. */
- HV *stash = name && GvSTASH(CvGV(cv)) ? GvSTASH(CvGV(cv)) : PL_curstash;
+ HV *stash = name && !CvNAMED(cv) && GvSTASH(CvGV(cv))
+ ? GvSTASH(CvGV(cv))
+ : PL_curstash;
if (!name) SAVEFREESV(cv);
apply_attrs(stash, MUTABLE_SV(cv), attrs);
if (!name) SvREFCNT_inc_simple_void_NN(cv);
if (block && has_name) {
if (PERLDB_SUBLINE && PL_curstash != PL_debstash) {
- SV * const tmpstr = sv_newmortal();
+ SV * const tmpstr = cv_name(cv,NULL);
GV * const db_postponed = gv_fetchpvs("DB::postponed",
GV_ADDMULTI, SVt_PVHV);
HV *hv;
CopFILE(PL_curcop),
(long)PL_subline,
(long)CopLINE(PL_curcop));
- gv_efullname3(tmpstr, gv, NULL);
(void)hv_store(GvHV(PL_DBsub), SvPVX_const(tmpstr),
SvUTF8(tmpstr) ? -(I32)SvCUR(tmpstr) : (I32)SvCUR(tmpstr), sv, 0);
hv = GvHVn(db_postponed);
if (PL_parser && PL_parser->error_count)
clear_special_blocks(name, gv, cv);
else
- process_special_blocks(floor, name, gv, cv);
+ special = process_special_blocks(floor, name, gv, cv);
}
}
LEAVE_SCOPE(floor);
#ifdef PERL_DEBUG_READONLY_OPS
/* Watch out for BEGIN blocks */
- if (slab && gv && isGV(gv) && GvCV(gv)) Slab_to_ro(slab);
+ if (!special) Slab_to_ro(slab);
#endif
return cv;
}
|| (*name == 'U' && strEQ(name, "UNITCHECK"))
|| (*name == 'C' && strEQ(name, "CHECK"))
|| (*name == 'I' && strEQ(name, "INIT"))) {
+ if (!isGV(gv)) {
+ (void)CvGV(cv);
+ assert(isGV(gv));
+ }
GvCV_set(gv, NULL);
SvREFCNT_dec_NN(MUTABLE_SV(cv));
}
}
-STATIC void
+STATIC bool
S_process_special_blocks(pTHX_ I32 floor, const char *const fullname,
GV *const gv,
CV *const cv)
if (strEQ(name, "BEGIN")) {
const I32 oldscope = PL_scopestack_ix;
dSP;
+ (void)CvGV(cv);
if (floor) LEAVE_SCOPE(floor);
ENTER;
PUSHSTACKi(PERLSI_REQUIRE);
POPSTACK;
LEAVE;
+ return TRUE;
}
else
- return;
+ return FALSE;
} else {
if (*name == 'E') {
if strEQ(name, "END") {
DEBUG_x( dump_sub(gv) );
Perl_av_create_and_unshift_one(aTHX_ &PL_endav, MUTABLE_SV(cv));
} else
- return;
+ return FALSE;
} else if (*name == 'U') {
if (strEQ(name, "UNITCHECK")) {
/* It's never too late to run a unitcheck block */
Perl_av_create_and_unshift_one(aTHX_ &PL_unitcheckav, MUTABLE_SV(cv));
}
else
- return;
+ return FALSE;
} else if (*name == 'C') {
if (strEQ(name, "CHECK")) {
if (PL_main_start)
Perl_av_create_and_unshift_one(aTHX_ &PL_checkav, MUTABLE_SV(cv));
}
else
- return;
+ return FALSE;
} else if (*name == 'I') {
if (strEQ(name, "INIT")) {
if (PL_main_start)
Perl_av_create_and_push(aTHX_ &PL_initav, MUTABLE_SV(cv));
}
else
- return;
+ return FALSE;
} else
- return;
+ return FALSE;
DEBUG_x( dump_sub(gv) );
+ (void)CvGV(cv);
GvCV_set(gv,0); /* cv has been hijacked */
+ return TRUE;
}
}
if (kid->op_type == OP_CONST) {
int iscv;
- const int noexpand = o->op_type == OP_RV2CV
- && o->op_private & OPpMAY_RETURN_CONSTANT
- ? GV_NOEXPAND
- : 0;
GV *gv;
SV * const kidsv = kid->op_sv;
* or we get possible typo warnings. OPpCONST_ENTERED says
* whether the lexer already added THIS instance of this symbol.
*/
- iscv = (o->op_type == OP_RV2CV) * 2;
- do {
- gv = gv_fetchsv(kidsv,
- noexpand
- ? noexpand
+ iscv = o->op_type == OP_RV2CV ? GV_NOEXPAND|GV_ADDMULTI : 0;
+ gv = gv_fetchsv(kidsv,
+ o->op_type == OP_RV2CV
+ && o->op_private & OPpMAY_RETURN_CONSTANT
+ ? GV_NOEXPAND
: iscv | !(kid->op_private & OPpCONST_ENTERED),
iscv
? SVt_PVCV
: o->op_type == OP_RV2HV
? SVt_PVHV
: SVt_PVGV);
- } while (!noexpand && !gv && !(kid->op_private & OPpCONST_ENTERED)
- && !iscv++);
if (gv) {
+ if (!isGV(gv)) {
+ assert(iscv);
+ assert(SvROK(gv));
+ if (!(o->op_private & OPpMAY_RETURN_CONSTANT)
+ && SvTYPE(SvRV(gv)) != SVt_PVCV)
+ gv_fetchsv(kidsv, GV_ADDMULTI, SVt_PVCV);
+ }
kid->op_type = OP_GV;
SvREFCNT_dec(kid->op_sv);
#ifdef USE_ITHREADS
SV * const sv = kid->op_sv;
U32 const was_readonly = SvREADONLY(sv);
if (kid->op_private & OPpCONST_BARE) {
+ dVAR;
const char *end;
if (was_readonly) {
SvREFCNT_dec_NN(sv);
}
else {
+ dVAR;
if (was_readonly) SvREADONLY_off(sv);
PERL_HASH(hash, s, len);
hek = share_hek(s,
case OP_GV: {
gv = cGVOPx_gv(rvop);
if (!isGV(gv)) {
+ if (SvROK(gv) && SvTYPE(SvRV(gv)) == SVt_PVCV) {
+ cv = MUTABLE_CV(SvRV(gv));
+ gv = NULL;
+ break;
+ }
if (flags & RV2CVOPCV_RETURN_STUB)
return (CV *)gv;
else return NULL;
}
if (SvTYPE((SV*)cv) != SVt_PVCV)
return NULL;
- if (flags & RV2CVOPCV_RETURN_NAME_GV) {
- if (!CvANON(cv) || !gv)
+ if (flags & (RV2CVOPCV_RETURN_NAME_GV|RV2CVOPCV_MAYBE_NAME_GV)) {
+ if ((!CvANON(cv) || !gv) && !CvLEXICAL(cv)
+ && ((flags & RV2CVOPCV_RETURN_NAME_GV) || !CvNAMED(cv)))
gv = CvGV(cv);
return (CV*)gv;
} else {
OP* o3 = aop;
if (proto >= proto_end)
- return too_many_arguments_sv(entersubop, gv_ename(namegv), 0);
+ {
+ SV * const namesv = gv_ename(namegv);
+ yyerror_pv(Perl_form(aTHX_ "Too many arguments for %"SVf,
+ SVfARG(namesv)), SvUTF8(namesv));
+ return entersubop;
+ }
switch (*proto) {
case ';':
goto wrapref; /* autoconvert GLOB -> GLOBref */
else if (o3->op_type == OP_CONST)
o3->op_private &= ~OPpCONST_STRICT;
- else if (o3->op_type == OP_ENTERSUB) {
- /* accidental subroutine, revert to bareword */
- OP *gvop = ((UNOP*)o3)->op_first;
- if (gvop && gvop->op_type == OP_NULL) {
- gvop = ((UNOP*)gvop)->op_first;
- if (gvop) {
- for (; OP_HAS_SIBLING(gvop); gvop = OP_SIBLING(gvop))
- ;
- if (gvop &&
- (gvop->op_private & OPpENTERSUB_NOPAREN) &&
- (gvop = ((UNOP*)gvop)->op_first) &&
- gvop->op_type == OP_GV)
- {
- OP * newop;
- GV * const gv = cGVOPx_gv(gvop);
- SV * const n = newSVpvs("");
- gv_fullname4(n, gv, "", FALSE);
- /* replace the aop subtree with a const op */
- newop = newSVOP(OP_CONST, 0, n);
- op_sibling_splice(parent, prev, 1, newop);
- op_free(aop);
- aop = newop;
- }
- }
- }
- }
scalar(aop);
break;
case '+':
}
if (!optional && proto_end > proto &&
(*proto != '@' && *proto != '%' && *proto != ';' && *proto != '_'))
- return too_few_arguments_sv(entersubop, gv_ename(namegv), 0);
+ {
+ SV * const namesv = gv_ename(namegv);
+ yyerror_pv(Perl_form(aTHX_ "Not enough arguments for %"SVf,
+ SVfARG(namesv)), SvUTF8(namesv));
+ }
return entersubop;
}
=cut
*/
-void
-Perl_cv_get_call_checker(pTHX_ CV *cv, Perl_call_checker *ckfun_p, SV **ckobj_p)
+static void
+S_cv_get_call_checker(CV *cv, Perl_call_checker *ckfun_p, SV **ckobj_p,
+ U8 *flagsp)
{
MAGIC *callmg;
- PERL_ARGS_ASSERT_CV_GET_CALL_CHECKER;
- PERL_UNUSED_CONTEXT;
callmg = SvMAGICAL((SV*)cv) ? mg_find((SV*)cv, PERL_MAGIC_checkcall) : NULL;
if (callmg) {
*ckfun_p = DPTR2FPTR(Perl_call_checker, callmg->mg_ptr);
*ckobj_p = callmg->mg_obj;
+ if (flagsp) *flagsp = callmg->mg_flags;
} else {
*ckfun_p = Perl_ck_entersub_args_proto_or_list;
*ckobj_p = (SV*)cv;
+ if (flagsp) *flagsp = MGf_REQUIRE_GV;
}
}
+void
+Perl_cv_get_call_checker(pTHX_ CV *cv, Perl_call_checker *ckfun_p, SV **ckobj_p)
+{
+ PERL_ARGS_ASSERT_CV_GET_CALL_CHECKER;
+ PERL_UNUSED_CONTEXT;
+ return S_cv_get_call_checker(cv, ckfun_p, ckobj_p, NULL);
+}
+
/*
-=for apidoc Am|void|cv_set_call_checker|CV *cv|Perl_call_checker ckfun|SV *ckobj
+=for apidoc Am|void|cv_set_call_checker_flags|CV *cv|Perl_call_checker ckfun|SV *ckobj|U32 flags
Sets the function that will be used to fix up a call to I<cv>.
Specifically, the function is applied to an C<entersub> op tree for a
entersubop = ckfun(aTHX_ entersubop, namegv, ckobj);
In this call, I<entersubop> is a pointer to the C<entersub> op,
-which may be replaced by the check function, and I<namegv> is a GV
-supplying the name that should be used by the check function to refer
+which may be replaced by the check function, and I<namegv> supplies
+the name that should be used by the check function to refer
to the callee of the C<entersub> op if it needs to emit any diagnostics.
It is permitted to apply the check function in non-standard situations,
such as to a call to a different subroutine or to a method call.
+I<namegv> may not actually be a GV. For efficiency, perl may pass a
+CV or other SV instead. Whatever is passed can be used as the first
+argument to L</cv_name>. You can force perl to pass a GV by including
+C<CALL_CHECKER_REQUIRE_GV> in the I<flags>.
+
The current setting for a particular CV can be retrieved by
L</cv_get_call_checker>.
+=for apidoc Am|void|cv_set_call_checker|CV *cv|Perl_call_checker ckfun|SV *ckobj
+
+The original form of L</cv_set_call_checker_flags>, which passes it the
+C<CALL_CHECKER_REQUIRE_GV> flag for backward-compatibility.
+
=cut
*/
Perl_cv_set_call_checker(pTHX_ CV *cv, Perl_call_checker ckfun, SV *ckobj)
{
PERL_ARGS_ASSERT_CV_SET_CALL_CHECKER;
+ cv_set_call_checker_flags(cv, ckfun, ckobj, CALL_CHECKER_REQUIRE_GV);
+}
+
+void
+Perl_cv_set_call_checker_flags(pTHX_ CV *cv, Perl_call_checker ckfun,
+ SV *ckobj, U32 flags)
+{
+ PERL_ARGS_ASSERT_CV_SET_CALL_CHECKER_FLAGS;
if (ckfun == Perl_ck_entersub_args_proto_or_list && ckobj == (SV*)cv) {
if (SvMAGICAL((SV*)cv))
mg_free_type((SV*)cv, PERL_MAGIC_checkcall);
SvREFCNT_inc_simple_void_NN(ckobj);
callmg->mg_flags |= MGf_REFCOUNTED;
}
- callmg->mg_flags |= MGf_COPY;
+ callmg->mg_flags = (callmg->mg_flags &~ MGf_REQUIRE_GV)
+ | (flags & MGf_REQUIRE_GV) | MGf_COPY;
}
}
aop = OP_SIBLING(aop);
for (cvop = aop; OP_HAS_SIBLING(cvop); cvop = OP_SIBLING(cvop)) ;
cv = rv2cv_op_cv(cvop, RV2CVOPCV_MARK_EARLY);
- namegv = cv ? (GV*)rv2cv_op_cv(cvop, RV2CVOPCV_RETURN_NAME_GV) : NULL;
+ namegv = cv ? (GV*)rv2cv_op_cv(cvop, RV2CVOPCV_MAYBE_NAME_GV) : NULL;
o->op_private &= ~1;
o->op_private |= OPpENTERSUB_HASTARG;
} else {
Perl_call_checker ckfun;
SV *ckobj;
- cv_get_call_checker(cv, &ckfun, &ckobj);
- if (!namegv) { /* expletive! */
- /* XXX The call checker API is public. And it guarantees that
- a GV will be provided with the right name. So we have
- to create a GV. But it is still not correct, as its
- stringification will include the package. What we
- really need is a new call checker API that accepts a
- GV or string (or GV or CV). */
- HEK * const hek = CvNAME_HEK(cv);
+ U8 flags;
+ S_cv_get_call_checker(cv, &ckfun, &ckobj, &flags);
+ if (!namegv) {
+ /* The original call checker API guarantees that a GV will be
+ be provided with the right name. So, if the old API was
+ used (or the REQUIRE_GV flag was passed), we have to reify
+ the CV’s GV, unless this is an anonymous sub. This is not
+ ideal for lexical subs, as its stringification will include
+ the package. But it is the best we can do. */
+ if (flags & MGf_REQUIRE_GV) {
+ if (!CvANON(cv) && (!CvNAMED(cv) || CvNAME_HEK(cv)))
+ namegv = CvGV(cv);
+ }
+ else namegv = MUTABLE_GV(cv);
/* After a syntax error in a lexical sub, the cv that
rv2cv_op_cv returns may be a nameless stub. */
- if (!hek) return ck_entersub_args_list(o);;
- namegv = (GV *)sv_newmortal();
- gv_init_pvn(namegv, PL_curstash, HEK_KEY(hek), HEK_LEN(hek),
- SVf_UTF8 * !!HEK_UTF8(hek));
+ if (!namegv) return ck_entersub_args_list(o);
+
}
return ckfun(aTHX_ o, namegv, ckobj);
}
OP *rv2av, *q;
p = o->op_next;
if ( p->op_type == OP_GV
- && (gv = cGVOPx_gv(p))
+ && (gv = cGVOPx_gv(p)) && isGV(gv)
&& GvNAMELEN_get(gv) == 1
&& *GvNAME_get(gv) == '_'
&& GvSTASH(gv) == PL_defstash
https://perl5.git.perl.org / perl5.git / blobdiff