JSObject* PJS_NewPerlSub( pTHX_ JSContext *cx, JSObject *parent, SV *cvref ) { JSObject *newobj = PJS_CreateJSVis( aTHX_ cx, JS_NewObject(cx, &perlsub_class, NULL, parent), cvref ); if(newobj) { CV *cv = (CV *)SvRV(cvref); const char *fname = CvANON(cv) ? "(anonymous)" : GvENAME(CvGV(cv)); JSString *jstr = JS_InternString(cx, fname); if(!jstr || !JS_DefineProperty(cx, newobj, "name", STRING_TO_JSVAL(jstr), NULL, NULL, JSPROP_READONLY | JSPROP_PERMANENT) ) { PJS_unrootJSVis(cx, newobj); newobj = NULL; } } return newobj; }
modperl_handler_t *modperl_handler_new_from_sv(pTHX_ apr_pool_t *p, SV *sv) { char *name = NULL; GV *gv; if (SvROK(sv)) { sv = SvRV(sv); } switch (SvTYPE(sv)) { case SVt_PV: name = SvPVX(sv); return modperl_handler_new(p, apr_pstrdup(p, name)); break; case SVt_PVCV: if (CvANON((CV*)sv)) { return modperl_handler_new_anon(aTHX_ p, (CV*)sv); } if (!(gv = CvGV((CV*)sv))) { Perl_croak(aTHX_ "can't resolve the code reference"); } name = apr_pstrcat(p, HvNAME(GvSTASH(gv)), "::", GvNAME(gv), NULL); return modperl_handler_new(p, name); default: break; }; return NULL; }
GV * Perl_gv_fetchmethod_autoload(pTHX_ HV *stash, const char *name, I32 autoload) { register const char *nend; const char *nsplit = 0; GV* gv; for (nend = name; *nend; nend++) { if (*nend == '\'') nsplit = nend; else if (*nend == ':' && *(nend + 1) == ':') nsplit = ++nend; } if (nsplit) { const char *origname = name; name = nsplit + 1; if (*nsplit == ':') --nsplit; if ((nsplit - origname) == 5 && strnEQ(origname, "SUPER", 5)) { /* ->SUPER::method should really be looked up in original stash */ SV *tmpstr = sv_2mortal(Perl_newSVpvf(aTHX_ "%s::SUPER", CopSTASHPV(PL_curcop))); stash = gv_stashpvn(SvPVX(tmpstr), SvCUR(tmpstr), TRUE); DEBUG_o( Perl_deb(aTHX_ "Treating %s as %s::%s\n", origname, HvNAME(stash), name) ); } else stash = gv_stashpvn(origname, nsplit - origname, TRUE); } gv = gv_fetchmeth(stash, name, nend - name, 0); if (!gv) { if (strEQ(name,"import") || strEQ(name,"unimport")) gv = (GV*)&PL_sv_yes; else if (autoload) gv = gv_autoload4(stash, name, nend - name, TRUE); } else if (autoload) { CV* cv = GvCV(gv); if (!CvROOT(cv) && !CvXSUB(cv)) { GV* stubgv; GV* autogv; if (CvANON(cv)) stubgv = gv; else { stubgv = CvGV(cv); if (GvCV(stubgv) != cv) /* orphaned import */ stubgv = gv; } autogv = gv_autoload4(GvSTASH(stubgv), GvNAME(stubgv), GvNAMELEN(stubgv), TRUE); if (autogv) gv = autogv; } } return gv; }
GV * Perl_gv_fetchmethod_autoload(pTHX_ HV *stash, const char *name, I32 autoload) { register const char *nend; const char *nsplit = 0; GV* gv; HV* ostash = stash; if (stash && SvTYPE(stash) < SVt_PVHV) stash = Nullhv; for (nend = name; *nend; nend++) { if (*nend == '\'') nsplit = nend; else if (*nend == ':' && *(nend + 1) == ':') nsplit = ++nend; } if (nsplit) { const char *origname = name; name = nsplit + 1; if (*nsplit == ':') --nsplit; if ((nsplit - origname) == 5 && strnEQ(origname, "SUPER", 5)) { /* ->SUPER::method should really be looked up in original stash */ SV *tmpstr = sv_2mortal(Perl_newSVpvf(aTHX_ "%s::SUPER", CopSTASHPV(PL_curcop))); /* __PACKAGE__::SUPER stash should be autovivified */ stash = gv_stashpvn(SvPVX(tmpstr), SvCUR(tmpstr), TRUE); DEBUG_o( Perl_deb(aTHX_ "Treating %s as %s::%s\n", origname, HvNAME(stash), name) ); } else { /* don't autovifify if ->NoSuchStash::method */ stash = gv_stashpvn(origname, nsplit - origname, FALSE); /* however, explicit calls to Pkg::SUPER::method may happen, and may require autovivification to work */ if (!stash && (nsplit - origname) >= 7 && strnEQ(nsplit - 7, "::SUPER", 7) && gv_stashpvn(origname, nsplit - origname - 7, FALSE)) stash = gv_stashpvn(origname, nsplit - origname, TRUE); } ostash = stash; } gv = gv_fetchmeth(stash, name, nend - name, 0); if (!gv) { if (strEQ(name,"import") || strEQ(name,"unimport")) gv = (GV*)&PL_sv_yes; else if (autoload) gv = gv_autoload4(ostash, name, nend - name, TRUE); } else if (autoload) { CV* cv = GvCV(gv); if (!CvROOT(cv) && !CvXSUB(cv)) { GV* stubgv; GV* autogv; if (CvANON(cv)) stubgv = gv; else { stubgv = CvGV(cv); if (GvCV(stubgv) != cv) /* orphaned import */ stubgv = gv; } autogv = gv_autoload4(GvSTASH(stubgv), GvNAME(stubgv), GvNAMELEN(stubgv), TRUE); if (autogv) gv = autogv; } } return gv; }
/* helper for the default modify handler for builtin attributes */ static int modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs) { SV *attr; int nret; for (nret = 0 ; numattrs && (attr = *attrlist++); numattrs--) { STRLEN len; const char *name = SvPV_const(attr, len); const bool negated = (*name == '-'); HV *typestash; if (negated) { name++; len--; } switch (SvTYPE(sv)) { case SVt_PVCV: switch ((int)len) { case 4: if (memEQ(name, "pure", 4)) { if (negated) Perl_croak(aTHX_ "Illegal :-pure attribute"); CvPURE_on(sv); goto next_attr; } break; case 5: if (memEQ(name, "const", 5)) { if (negated) CvCONST_off(sv); else { #ifndef USE_CPERL const bool warn = (!CvANON(sv) || CvCLONED(sv)) && !CvCONST(sv); CvCONST_on(sv); if (warn) break; #else CvCONST_on(sv); #endif } goto next_attr; } break; case 6: switch (name[3]) { case 'l': if (memEQ(name, "lvalue", 6)) { bool warn = !CvISXSUB(MUTABLE_CV(sv)) && CvROOT(MUTABLE_CV(sv)) && !CvLVALUE(MUTABLE_CV(sv)) != negated; if (negated) CvFLAGS(MUTABLE_CV(sv)) &= ~CVf_LVALUE; else CvFLAGS(MUTABLE_CV(sv)) |= CVf_LVALUE; if (warn) break; goto next_attr; } break; case 'h': if (memEQ(name, "method", 6)) { if (negated) CvFLAGS(MUTABLE_CV(sv)) &= ~CVf_METHOD; else CvFLAGS(MUTABLE_CV(sv)) |= CVf_METHOD; goto next_attr; } break; } break; default: if (len > 10 && memEQ(name, "prototype(", 10)) { SV * proto = newSVpvn(name+10,len-11); HEK *const hek = CvNAME_HEK((CV *)sv); SV *subname; if (name[len-1] != ')') Perl_croak(aTHX_ "Unterminated attribute parameter in attribute list"); if (hek) subname = sv_2mortal(newSVhek(hek)); else subname=(SV *)CvGV((const CV *)sv); if (ckWARN(WARN_ILLEGALPROTO)) Perl_validate_proto(aTHX_ subname, proto, TRUE); Perl_cv_ckproto_len_flags(aTHX_ (const CV *)sv, (const GV *)subname, name+10, len-11, SvUTF8(attr)); sv_setpvn(MUTABLE_SV(sv), name+10, len-11); if (SvUTF8(attr)) SvUTF8_on(MUTABLE_SV(sv)); goto next_attr; } break; } if (!negated && (typestash = gv_stashpvn(name, len, SvUTF8(attr)))) { CvTYPED_on(sv); CvTYPE_set((CV*)sv, typestash); continue; } break; case SVt_IV: case SVt_PVIV: case SVt_PVMG: if (memEQ(name, "unsigned", 8) && (SvIOK(sv) || SvUOK(sv))) { if (negated) /* :-unsigned alias for :signed */ SvIsUV_off(sv); else SvIsUV_on(sv); continue; } /* fallthru - all other data types */ default: if (memEQ(name, "const", 5) && !(SvFLAGS(sv) & SVf_PROTECT)) { if (negated) SvREADONLY_off(sv); else SvREADONLY_on(sv); continue; } if (memEQs(name, len, "shared")) { if (negated) Perl_croak(aTHX_ "A variable may not be unshared"); SvSHARE(sv); continue; } break; } /* anything recognized had a 'continue' above */ *retlist++ = attr; nret++; next_attr: ; } return nret; }