prefix ? "builtin::" : "", name);
}
+/* These three utilities might want to live elsewhere to be reused from other
+ * code sometime
+ */
+#define prepare_export_lexical() S_prepare_export_lexical(aTHX)
+static void S_prepare_export_lexical(pTHX)
+{
+ assert(PL_compcv);
+
+ /* We need to have PL_comppad / PL_curpad set correctly for lexical importing */
+ ENTER;
+ SAVESPTR(PL_comppad_name); PL_comppad_name = PadlistNAMES(CvPADLIST(PL_compcv));
+ SAVESPTR(PL_comppad); PL_comppad = PadlistARRAY(CvPADLIST(PL_compcv))[1];
+ SAVESPTR(PL_curpad); PL_curpad = PadARRAY(PL_comppad);
+}
+
+#define export_lexical(name, sv) S_export_lexical(aTHX_ name, sv)
+static void S_export_lexical(pTHX_ SV *name, SV *sv)
+{
+ PADOFFSET off = pad_add_name_sv(name, padadd_STATE, 0, 0);
+ SvREFCNT_dec(PL_curpad[off]);
+ PL_curpad[off] = SvREFCNT_inc(sv);
+}
+
+#define finish_export_lexical() S_finish_export_lexical(aTHX)
+static void S_finish_export_lexical(pTHX)
+{
+ intro_my();
+
+ LEAVE;
+}
+
+
XS(XS_builtin_true);
XS(XS_builtin_true)
{
croak_xs_usage(cv, "arg");
switch(ix) {
- case OP_ISBOOL:
- Perl_pp_isbool(aTHX);
+ case OP_IS_BOOL:
+ Perl_pp_is_bool(aTHX);
break;
- case OP_ISWEAK:
- Perl_pp_isweak(aTHX);
+ case OP_IS_WEAK:
+ Perl_pp_is_weak(aTHX);
break;
case OP_BLESSED:
Perl_pp_floor(aTHX);
break;
+ case OP_IS_TAINTED:
+ Perl_pp_is_tainted(aTHX);
+ break;
+
default:
Perl_die(aTHX_ "panic: unhandled opcode %" IVdf
" for xs_builtin_func1_scalar()", (IV) ix);
XSRETURN(1);
}
+XS(XS_builtin_trim);
+XS(XS_builtin_trim)
+{
+ dXSARGS;
+
+ warn_experimental_builtin("trim", true);
+
+ if (items != 1) {
+ croak_xs_usage(cv, "arg");
+ }
+
+ dTARGET;
+ SV *source = TOPs;
+ STRLEN len;
+ const U8 *start;
+ SV *dest;
+
+ SvGETMAGIC(source);
+
+ if (SvOK(source))
+ start = (const U8*)SvPV_nomg_const(source, len);
+ else {
+ if (ckWARN(WARN_UNINITIALIZED))
+ report_uninit(source);
+ start = (const U8*)"";
+ len = 0;
+ }
+
+ if (DO_UTF8(source)) {
+ const U8 *end = start + len;
+
+ /* Find the first non-space */
+ while(len) {
+ STRLEN thislen;
+ if (!isSPACE_utf8_safe(start, end))
+ break;
+ start += (thislen = UTF8SKIP(start));
+ len -= thislen;
+ }
+
+ /* Find the final non-space */
+ STRLEN thislen;
+ const U8 *cur_end = end;
+ while ((thislen = is_SPACE_utf8_safe_backwards(cur_end, start))) {
+ cur_end -= thislen;
+ }
+ len -= (end - cur_end);
+ }
+ else if (len) {
+ while(len) {
+ if (!isSPACE_L1(*start))
+ break;
+ start++;
+ len--;
+ }
+
+ while(len) {
+ if (!isSPACE_L1(start[len-1]))
+ break;
+ len--;
+ }
+ }
+
+ dest = TARG;
+
+ if (SvPOK(dest) && (dest == source)) {
+ sv_chop(dest, (const char *)start);
+ SvCUR_set(dest, len);
+ }
+ else {
+ SvUPGRADE(dest, SVt_PV);
+ SvGROW(dest, len + 1);
+
+ Copy(start, SvPVX(dest), len, U8);
+ SvPVX(dest)[len] = '\0';
+ SvPOK_on(dest);
+ SvCUR_set(dest, len);
+
+ if (DO_UTF8(source))
+ SvUTF8_on(dest);
+ else
+ SvUTF8_off(dest);
+
+ if (SvTAINTED(source))
+ SvTAINT(dest);
+ }
+
+ SvSETMAGIC(dest);
+
+ SETs(dest);
+
+ XSRETURN(1);
+}
+
+XS(XS_builtin_export_lexically);
+XS(XS_builtin_export_lexically)
+{
+ dXSARGS;
+
+ warn_experimental_builtin("export_lexically", true);
+
+ if(!PL_compcv)
+ Perl_croak(aTHX_
+ "export_lexically can only be called at compile time");
+
+ if(items % 2)
+ Perl_croak(aTHX_ "Odd number of elements in export_lexically");
+
+ for(int i = 0; i < items; i += 2) {
+ SV *name = ST(i);
+ SV *ref = ST(i+1);
+
+ if(!SvROK(ref))
+ /* diag_listed_as: Expected %s reference in export_lexically */
+ Perl_croak(aTHX_ "Expected a reference in export_lexically");
+
+ char sigil = SvPVX(name)[0];
+ SV *rv = SvRV(ref);
+
+ const char *bad = NULL;
+ switch(sigil) {
+ default:
+ /* overwrites the pointer on the stack; but this is fine, the
+ * caller's value isn't modified */
+ ST(i) = name = sv_2mortal(Perl_newSVpvf(aTHX_ "&%" SVf, SVfARG(name)));
+
+ /* FALLTHROUGH */
+ case '&':
+ if(SvTYPE(rv) != SVt_PVCV)
+ bad = "a CODE";
+ break;
+
+ case '$':
+ /* Permit any of SVt_NULL to SVt_PVMG. Technically this also
+ * includes SVt_INVLIST but it isn't thought possible for pureperl
+ * code to ever manage to see one of those. */
+ if(SvTYPE(rv) > SVt_PVMG)
+ bad = "a SCALAR";
+ break;
+
+ case '@':
+ if(SvTYPE(rv) != SVt_PVAV)
+ bad = "an ARRAY";
+ break;
+
+ case '%':
+ if(SvTYPE(rv) != SVt_PVHV)
+ bad = "a HASH";
+ break;
+ }
+
+ if(bad)
+ Perl_croak(aTHX_ "Expected %s reference in export_lexically", bad);
+ }
+
+ prepare_export_lexical();
+
+ for(int i = 0; i < items; i += 2) {
+ SV *name = ST(i);
+ SV *ref = ST(i+1);
+
+ export_lexical(name, SvRV(ref));
+ }
+
+ finish_export_lexical();
+}
+
XS(XS_builtin_func1_void);
XS(XS_builtin_func1_void)
{
XSRETURN(0);
}
+XS(XS_builtin_created_as_string)
+{
+ dXSARGS;
+
+ if(items != 1)
+ croak_xs_usage(cv, "arg");
+
+ SV *arg = ST(0);
+ SvGETMAGIC(arg);
+
+ /* SV was created as string if it has POK and isn't bool */
+ ST(0) = boolSV(SvPOK(arg) && !SvIsBOOL(arg));
+ XSRETURN(1);
+}
+
+XS(XS_builtin_created_as_number)
+{
+ dXSARGS;
+
+ if(items != 1)
+ croak_xs_usage(cv, "arg");
+
+ SV *arg = ST(0);
+ SvGETMAGIC(arg);
+
+ /* SV was created as number if it has NOK or IOK but not POK and is not bool */
+ ST(0) = boolSV(SvNIOK(arg) && !SvPOK(arg) && !SvIsBOOL(arg));
+ XSRETURN(1);
+}
+
static OP *ck_builtin_func1(pTHX_ OP *entersubop, GV *namegv, SV *ckobj)
{
const struct BuiltinFuncDescriptor *builtin = NUM2PTR(const struct BuiltinFuncDescriptor *, SvUV(ckobj));
entersubop = ck_entersub_args_proto(entersubop, namegv, prototype);
+ OPCODE opcode = builtin->ckval;
+ if(!opcode)
+ return entersubop;
+
OP *parent = entersubop, *pushop, *argop;
pushop = cUNOPx(entersubop)->op_first;
op_free(entersubop);
- OPCODE opcode = builtin->ckval;
-
return newUNOP(opcode, wantflags, argop);
}
+XS(XS_builtin_indexed)
+{
+ dXSARGS;
+
+ switch(GIMME_V) {
+ case G_VOID:
+ Perl_ck_warner(aTHX_ packWARN(WARN_VOID),
+ "Useless use of %s in void context", "builtin::indexed");
+ XSRETURN(0);
+
+ case G_SCALAR:
+ Perl_ck_warner(aTHX_ packWARN(WARN_SCALAR),
+ "Useless use of %s in scalar context", "builtin::indexed");
+ ST(0) = sv_2mortal(newSViv(items * 2));
+ XSRETURN(1);
+
+ case G_LIST:
+ break;
+ }
+
+ SSize_t retcount = items * 2;
+ EXTEND(SP, retcount);
+
+ /* Copy from [items-1] down to [0] so we don't have to make
+ * temporary copies */
+ for(SSize_t index = items - 1; index >= 0; index--) {
+ /* Copy, not alias */
+ ST(index * 2 + 1) = sv_mortalcopy(ST(index));
+ ST(index * 2) = sv_2mortal(newSViv(index));
+ }
+
+ XSRETURN(retcount);
+}
+
+static OP *ck_builtin_funcN(pTHX_ OP *entersubop, GV *namegv, SV *ckobj)
+{
+ const struct BuiltinFuncDescriptor *builtin = NUM2PTR(const struct BuiltinFuncDescriptor *, SvUV(ckobj));
+
+ warn_experimental_builtin(builtin->name, false);
+
+ SV *prototype = newSVpvs("@");
+ SAVEFREESV(prototype);
+
+ assert(entersubop->op_type == OP_ENTERSUB);
+
+ entersubop = ck_entersub_args_proto(entersubop, namegv, prototype);
+ return entersubop;
+}
+
static const char builtin_not_recognised[] = "'%" SVf "' is not recognised as a builtin function";
static const struct BuiltinFuncDescriptor builtins[] = {
{ "builtin::false", &XS_builtin_false, &ck_builtin_const, BUILTIN_CONST_FALSE },
/* unary functions */
- { "builtin::isbool", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_ISBOOL },
- { "builtin::weaken", &XS_builtin_func1_void, &ck_builtin_func1, OP_WEAKEN },
- { "builtin::unweaken", &XS_builtin_func1_void, &ck_builtin_func1, OP_UNWEAKEN },
- { "builtin::isweak", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_ISWEAK },
- { "builtin::blessed", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_BLESSED },
- { "builtin::refaddr", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_REFADDR },
- { "builtin::reftype", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_REFTYPE },
- { "builtin::ceil", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_CEIL },
- { "builtin::floor", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_FLOOR },
+ { "builtin::is_bool", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_IS_BOOL },
+ { "builtin::weaken", &XS_builtin_func1_void, &ck_builtin_func1, OP_WEAKEN },
+ { "builtin::unweaken", &XS_builtin_func1_void, &ck_builtin_func1, OP_UNWEAKEN },
+ { "builtin::is_weak", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_IS_WEAK },
+ { "builtin::blessed", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_BLESSED },
+ { "builtin::refaddr", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_REFADDR },
+ { "builtin::reftype", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_REFTYPE },
+ { "builtin::ceil", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_CEIL },
+ { "builtin::floor", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_FLOOR },
+ { "builtin::is_tainted", &XS_builtin_func1_scalar, &ck_builtin_func1, OP_IS_TAINTED },
+ { "builtin::trim", &XS_builtin_trim, &ck_builtin_func1, 0 },
+
+ { "builtin::created_as_string", &XS_builtin_created_as_string, &ck_builtin_func1, 0 },
+ { "builtin::created_as_number", &XS_builtin_created_as_number, &ck_builtin_func1, 0 },
+
+ /* list functions */
+ { "builtin::indexed", &XS_builtin_indexed, &ck_builtin_funcN, 0 },
+ { "builtin::export_lexically", &XS_builtin_export_lexically, NULL, 0 },
{ 0 }
};
if(!PL_compcv)
Perl_croak(aTHX_
- "builtin::import can only be called at compiletime");
+ "builtin::import can only be called at compile time");
- /* We need to have PL_comppad / PL_curpad set correctly for lexical importing */
- ENTER;
- SAVESPTR(PL_comppad_name); PL_comppad_name = PadlistNAMES(CvPADLIST(PL_compcv));
- SAVESPTR(PL_comppad); PL_comppad = PadlistARRAY(CvPADLIST(PL_compcv))[1];
- SAVESPTR(PL_curpad); PL_curpad = PadARRAY(PL_comppad);
+ prepare_export_lexical();
for(int i = 1; i < items; i++) {
SV *sym = ST(i);
Perl_croak(aTHX_ builtin_not_recognised, sym);
SV *ampname = sv_2mortal(Perl_newSVpvf(aTHX_ "&%" SVf, SVfARG(sym)));
- SV *fqname = sv_2mortal(Perl_newSVpvf(aTHX_ "builtin::%" SVf, SVfARG(sym)));
+ SV *fqname = sv_2mortal(Perl_newSVpvf(aTHX_ "builtin::%" SVf, SVfARG(sym)));
CV *cv = get_cv(SvPV_nolen(fqname), SvUTF8(fqname) ? SVf_UTF8 : 0);
if(!cv)
Perl_croak(aTHX_ builtin_not_recognised, sym);
- PADOFFSET off = pad_add_name_sv(ampname, padadd_STATE, 0, 0);
- SvREFCNT_dec(PL_curpad[off]);
- PL_curpad[off] = SvREFCNT_inc(cv);
+ export_lexical(ampname, (SV *)cv);
}
- intro_my();
-
- LEAVE;
+ finish_export_lexical();
}
void
https://perl5.git.perl.org / perl5.git / blobdiff