#include "mouse.h"
-#define CHECK_INSTANCE(instance) STMT_START{ \
- if(!(SvROK(instance) && SvTYPE(SvRV(instance)) == SVt_PVHV)){ \
- croak("Invalid object instance"); \
- } \
+#define CHECK_INSTANCE(instance) STMT_START{ \
+ assert(instance); \
+ if(!(SvROK(instance) && SvTYPE(SvRV(instance)) == SVt_PVHV)){ \
+ croak("Invalid object instance: '%"SVf"'", instance); \
+ } \
} STMT_END
#define dMOUSE_self SV* const self = mouse_accessor_get_self(aTHX_ ax, items, cv)
-static inline SV*
+/* simple instance slot accessor (or Mouse::Meta::Instance) */
+
+SV*
+mouse_instance_create(pTHX_ HV* const stash) {
+ SV* instance;
+ assert(stash);
+ assert(SvTYPE(stash) == SVt_PVHV);
+ instance = sv_bless( newRV_noinc((SV*)newHV()), stash );
+ return sv_2mortal(instance);
+}
+
+SV*
+mouse_instance_clone(pTHX_ SV* const instance) {
+ SV* proto;
+ CHECK_INSTANCE(instance);
+ assert(SvOBJECT(SvRV(instance)));
+
+ proto = newRV_noinc((SV*)newHVhv((HV*)SvRV(instance)));
+ sv_bless(proto, SvSTASH(SvRV(instance)));
+ return sv_2mortal(proto);
+}
+
+bool
+mouse_instance_has_slot(pTHX_ SV* const instance, SV* const slot) {
+ assert(slot);
+ CHECK_INSTANCE(instance);
+ return hv_exists_ent((HV*)SvRV(instance), slot, 0U);
+}
+
+SV*
+mouse_instance_get_slot(pTHX_ SV* const instance, SV* const slot) {
+ HE* he;
+ assert(slot);
+ CHECK_INSTANCE(instance);
+ he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U);
+ return he ? HeVAL(he) : NULL;
+}
+
+SV*
+mouse_instance_set_slot(pTHX_ SV* const instance, SV* const slot, SV* const value) {
+ HE* he;
+ SV* sv;
+ assert(slot);
+ assert(value);
+ CHECK_INSTANCE(instance);
+ he = hv_fetch_ent((HV*)SvRV(instance), slot, TRUE, 0U);
+ sv = HeVAL(he);
+ sv_setsv(sv, value);
+ SvSETMAGIC(sv);
+ return sv;
+}
+
+SV*
+mouse_instance_delete_slot(pTHX_ SV* const instance, SV* const slot) {
+ assert(instance);
+ assert(slot);
+ CHECK_INSTANCE(instance);
+ return hv_delete_ent((HV*)SvRV(instance), slot, 0, 0U);
+}
+
+void
+mouse_instance_weaken_slot(pTHX_ SV* const instance, SV* const slot) {
+ HE* he;
+ assert(slot);
+ CHECK_INSTANCE(instance);
+ he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U);
+ if(he){
+ sv_rvweaken(HeVAL(he));
+ }
+}
+
+/* utilities */
+
+STATIC_INLINE SV*
mouse_accessor_get_self(pTHX_ I32 const ax, I32 const items, CV* const cv) {
if(items < 1){
croak("Too few arguments for %s", GvNAME(CvGV(cv)));
}
-
/* NOTE: If self has GETMAGIC, $self->accessor will invoke GETMAGIC
- * before calling methods, so SvGETMAGIC(self) is not necessarily needed here.
+ * before calling methods, so SvGETMAGIC(self) is not required here.
*/
-
return ST(0);
}
xsub = newXS(NULL, accessor_impl, __FILE__);
sv_2mortal((SV*)xsub);
- mg = sv_magicext((SV*)xsub, MOUSE_xa_slot(xa), PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)xa, HEf_SVKEY);
+ mg = sv_magicext((SV*)xsub, MOUSE_xa_slot(xa),
+ PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)xa, HEf_SVKEY);
MOUSE_mg_flags(mg) = (U16)MOUSE_xa_flags(xa);
/* NOTE:
- * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx)
+ * although we use MAGIC for gc, we also store mg to
+ * CvXSUBANY for efficiency (gfx)
*/
CvXSUBANY(xsub).any_ptr = (void*)mg;
}
-#define PUSH_VALUE(value, flags) STMT_START { \
- if((flags) & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY){ \
- mouse_push_values(aTHX_ value, (flags)); \
- } \
- else{ \
- dSP; \
- XPUSHs(value ? value : &PL_sv_undef); \
- PUTBACK; \
- } \
- } STMT_END \
-
/* pushes return values, does auto-deref if needed */
static void
mouse_push_values(pTHX_ SV* const value, U16 const flags){
PUSHs(svp ? *svp : &PL_sv_undef);
}
}
- else if(flags & MOUSEf_TC_IS_HASHREF){
+ else{
HV* hv;
HE* he;
+ assert(flags & MOUSEf_TC_IS_HASHREF);
+
if(!IsHashRef(value)){
croak("Mouse-panic: Not a HASH reference");
}
PUTBACK;
}
-static void
+STATIC_INLINE void
+mouse_push_value(pTHX_ SV* const value, U16 const flags) {
+ if(flags & MOUSEf_ATTR_SHOULD_AUTO_DEREF && GIMME_V == G_ARRAY){
+ mouse_push_values(aTHX_ value, flags);
+ }
+ else{
+ dSP;
+ XPUSHs(value ? value : &PL_sv_undef);
+ PUTBACK;
+ }
+}
+
+STATIC_INLINE void
mouse_attr_get(pTHX_ SV* const self, MAGIC* const mg){
U16 const flags = MOUSE_mg_flags(mg);
SV* value;
value = mouse_xa_set_default(aTHX_ MOUSE_mg_xa(mg), self);
}
- PUSH_VALUE(value, flags);
+ mouse_push_value(aTHX_ value, flags);
}
static void
value = mouse_xa_apply_type_constraint(aTHX_ MOUSE_mg_xa(mg), value, flags);
}
- set_slot(self, slot, value);
+ value = set_slot(self, slot, value);
if(flags & MOUSEf_ATTR_IS_WEAK_REF){
weaken_slot(self, slot);
SV* const trigger = mcall0s(MOUSE_mg_attribute(mg), "trigger");
dSP;
+ /* NOTE: triggers can remove value, so
+ value must be copied here,
+ revealed by Net::Google::DataAPI (DANJOU).
+ */
+ value = sv_mortalcopy(value);
+
PUSHMARK(SP);
EXTEND(SP, 2);
PUSHs(self);
PUSHs(value);
PUTBACK;
- call_sv(trigger, G_VOID | G_DISCARD);
+ call_sv_safe(trigger, G_VOID | G_DISCARD);
/* need not SPAGAIN */
+
+ assert(SvTYPE(value) != SVTYPEMASK);
}
- PUSH_VALUE(value, flags);
+ mouse_push_value(aTHX_ value, flags);
}
XS(XS_Mouse_accessor)
}
else{
mouse_throw_error(MOUSE_mg_attribute(mg), NULL,
- "Expected exactly one or two argument for an accessor");
+ "Expected exactly one or two argument for an accessor of %"SVf,
+ MOUSE_mg_slot(mg));
}
}
if (items != 1) {
mouse_throw_error(MOUSE_mg_attribute(mg), NULL,
- "Cannot assign a value to a read-only accessor");
+ "Cannot assign a value to a read-only accessor of %"SVf,
+ MOUSE_mg_slot(mg));
}
SP -= items; /* PPCODE */
if (items != 2) {
mouse_throw_error(MOUSE_mg_attribute(mg), NULL,
- "Too few arguments for a write-only accessor");
+ "Too few arguments for a write-only accessor of %"SVf,
+ MOUSE_mg_slot(mg));
}
SP -= items; /* PPCODE */
*/
CV*
-mouse_simple_accessor_generate(pTHX_ const char* const fq_name, const char* const key, I32 const keylen, XSUBADDR_t const accessor_impl, void* const dptr, I32 const dlen){
+mouse_simple_accessor_generate(pTHX_
+ const char* const fq_name, const char* const key, I32 const keylen,
+ XSUBADDR_t const accessor_impl, void* const dptr, I32 const dlen) {
CV* const xsub = newXS((char*)fq_name, accessor_impl, __FILE__);
SV* const slot = newSVpvn_share(key, keylen, 0U);
MAGIC* mg;
if(!fq_name){
- /* anonymous xsubs need sv_2mortal */
+ /* anonymous xsubs need sv_2mortal() */
sv_2mortal((SV*)xsub);
}
- mg = sv_magicext((SV*)xsub, slot, PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)dptr, dlen);
+ mg = sv_magicext((SV*)xsub, slot,
+ PERL_MAGIC_ext, &mouse_accessor_vtbl, (char*)dptr, dlen);
+
SvREFCNT_dec(slot); /* sv_magicext() increases refcnt in mg_obj */
if(dlen == HEf_SVKEY){
SvREFCNT_dec(dptr);
}
/* NOTE:
- * although we use MAGIC for gc, we also store mg to CvXSUBANY for efficiency (gfx)
+ * although we use MAGIC for gc, we also store mg to CvXSUBANY
+ * for efficiency (gfx)
*/
CvXSUBANY(xsub).any_ptr = (void*)mg;
return xsub;
}
-XS(XS_Mouse_simple_accessor)
-{
- dVAR; dXSARGS;
- dMOUSE_self;
- MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
- SV* value;
-
- if(items == 1){ /* reader */
- value = get_slot(self, MOUSE_mg_slot(mg));
- if(!value) {
- if(MOUSE_mg_ptr(mg)){
- /* the default value must be a SV */
- assert(MOUSE_mg_len(mg) == HEf_SVKEY);
- value = (SV*)MOUSE_mg_ptr(mg);
- }
- else{
- value = &PL_sv_undef;
- }
- }
- }
- else if(items == 2){ /* writer */
- value = set_slot(self, MOUSE_mg_slot(mg), ST(1));
- }
- else {
- croak("Expected exactly one or two argument for an accessor for '%"SVf"'", MOUSE_mg_slot(mg));
- }
-
- ST(0) = value;
- XSRETURN(1);
-}
-
XS(XS_Mouse_simple_reader)
{
dVAR; dXSARGS;
SV* value;
if (items != 1) {
- croak("Expected exactly one argument for a reader for '%"SVf"'", MOUSE_mg_slot(mg));
+ croak("Expected exactly one argument for a reader of %"SVf,
+ MOUSE_mg_slot(mg));
}
value = get_slot(self, MOUSE_mg_slot(mg));
- ST(0) = value ? value : &PL_sv_undef;
+ if(!value) {
+ if(MOUSE_mg_ptr(mg)){
+ /* the default value must be a SV */
+ assert(MOUSE_mg_len(mg) == HEf_SVKEY);
+ value = (SV*)MOUSE_mg_ptr(mg);
+ }
+ else{
+ value = &PL_sv_undef;
+ }
+ }
+
+ ST(0) = value;
XSRETURN(1);
}
SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr);
if (items != 2) {
- croak("Expected exactly two argument for a writer for '%"SVf"'", slot);
+ croak("Expected exactly two argument for a writer of %"SVf,
+ slot);
}
ST(0) = set_slot(self, slot, ST(1));
SV* value;
if (items != 1) {
- croak("Expected exactly one argument for a clearer for '%"SVf"'", slot);
+ croak("Expected exactly one argument for a clearer of %"SVf,
+ slot);
}
value = delete_slot(self, slot);
SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr);
if (items != 1) {
- croak("Expected exactly one argument for a predicate for '%"SVf"'", slot);
+ croak("Expected exactly one argument for a predicate of %"SVf, slot);
}
ST(0) = boolSV( has_slot(self, slot) );
XSRETURN(1);
}
-/* simple instance slot accessor (or Mouse::Meta::Instance) */
-
-SV*
-mouse_instance_create(pTHX_ HV* const stash) {
- assert(stash);
- assert(SvTYPE(stash) == SVt_PVHV);
- return sv_bless( newRV_noinc((SV*)newHV()), stash );
-}
-
-SV*
-mouse_instance_clone(pTHX_ SV* const instance) {
- HV* proto;
- assert(instance);
+/* Class::Data::Inheritable-like class accessor */
+XS(XS_Mouse_inheritable_class_accessor) {
+ dVAR; dXSARGS;
+ dMOUSE_self;
+ SV* const slot = MOUSE_mg_slot((MAGIC*)XSANY.any_ptr);
+ SV* value;
+ HV* stash;
- CHECK_INSTANCE(instance);
- proto = newHVhv((HV*)SvRV(instance));
- return sv_bless( newRV_noinc((SV*)proto), SvSTASH(SvRV(instance)) );
-}
+ if(items == 1){ /* reader */
+ value = NULL;
+ }
+ else if (items == 2){ /* writer */
+ value = ST(1);
+ }
+ else{
+ croak("Expected exactly one or two argument for a class data accessor"
+ "of %"SVf, slot);
+ value = NULL; /* -Wuninitialized */
+ }
-bool
-mouse_instance_has_slot(pTHX_ SV* const instance, SV* const slot) {
- assert(instance);
- assert(slot);
- CHECK_INSTANCE(instance);
- return hv_exists_ent((HV*)SvRV(instance), slot, 0U);
-}
+ stash = mouse_get_namespace(aTHX_ self);
-SV*
-mouse_instance_get_slot(pTHX_ SV* const instance, SV* const slot) {
- HE* he;
- assert(instance);
- assert(slot);
- CHECK_INSTANCE(instance);
- he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U);
- return he ? HeVAL(he) : NULL;
-}
+ if(!value) { /* reader */
+ value = get_slot(self, slot);
+ if(!value) {
+ AV* const isa = mro_get_linear_isa(stash);
+ I32 const len = av_len(isa) + 1;
+ I32 i;
+ for(i = 1; i < len; i++) {
+ SV* const klass = MOUSE_av_at(isa, i);
+ SV* const meta = get_metaclass(klass);
+ if(!SvOK(meta)){
+ continue; /* skip non-Mouse classes */
+ }
+ value = get_slot(meta, slot);
+ if(value) {
+ break;
+ }
+ }
+ if(!value) {
+ value = &PL_sv_undef;
+ }
+ }
+ }
+ else { /* writer */
+ set_slot(self, slot, value);
+ mro_method_changed_in(stash);
+ }
-SV*
-mouse_instance_set_slot(pTHX_ SV* const instance, SV* const slot, SV* const value) {
- HE* he;
- SV* sv;
- assert(instance);
- assert(slot);
- assert(value);
- CHECK_INSTANCE(instance);
- he = hv_fetch_ent((HV*)SvRV(instance), slot, TRUE, 0U);
- sv = HeVAL(he);
- sv_setsv(sv, value);
- SvSETMAGIC(sv);
- return sv;
+ ST(0) = value;
+ XSRETURN(1);
}
-SV*
-mouse_instance_delete_slot(pTHX_ SV* const instance, SV* const slot) {
- assert(instance);
- assert(slot);
- CHECK_INSTANCE(instance);
- return hv_delete_ent((HV*)SvRV(instance), slot, 0, 0U);
-}
-void
-mouse_instance_weaken_slot(pTHX_ SV* const instance, SV* const slot) {
- HE* he;
- assert(instance);
- assert(slot);
- CHECK_INSTANCE(instance);
- he = hv_fetch_ent((HV*)SvRV(instance), slot, FALSE, 0U);
- if(he){
- sv_rvweaken(HeVAL(he));
- }
-}
-\r
MODULE = Mouse::Meta::Method::Accessor::XS PACKAGE = Mouse::Meta::Method::Accessor::XS
PROTOTYPES: DISABLE
_generate_clearer(klass, SV* attr, metaclass)
CODE:
{
- SV* const slot = mcall0s(attr, "name");
+ SV* const slot = mcall0(attr, mouse_name);
STRLEN len;
const char* const pv = SvPV_const(slot, len);
RETVAL = mouse_simple_accessor_generate(aTHX_ NULL, pv, len, XS_Mouse_simple_clearer, NULL, 0);
_generate_predicate(klass, SV* attr, metaclass)
CODE:
{
- SV* const slot = mcall0s(attr, "name");
+ SV* const slot = mcall0(attr, mouse_name);
STRLEN len;
const char* const pv = SvPV_const(slot, len);
RETVAL = mouse_simple_accessor_generate(aTHX_ NULL, pv, len, XS_Mouse_simple_predicate, NULL, 0);
projects / gitmo/Mouse.git / blobdiff