X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=xs-src%2FMouse.xs;h=1b124c7c21e6abd6665847d0cf38f028881a5dae;hb=HEAD;hp=fd27c5d05b785ae08f987643d31361d0723f006c;hpb=4bc0a6817c5dd82c0a516799b5b0530e15f4a608;p=gitmo%2FMouse.git

diff --git a/xs-src/Mouse.xs b/xs-src/Mouse.xs
index fd27c5d..1b124c7 100644
--- a/xs-src/Mouse.xs
+++ b/xs-src/Mouse.xs
@@ -49,31 +49,22 @@ enum mouse_modifier_t {
 
 static MGVTBL mouse_xc_vtbl; /* for identity */
 
-static void
-mouse_class_push_attribute_list(pTHX_ SV* const metaclass, AV* const attrall, HV* const seen){
-    dSP;
-    I32 n;
-
-    /* $meta->get_attribute_list */
-    PUSHMARK(SP);
-    XPUSHs(metaclass);
-    PUTBACK;
-
-    n = call_sv(mouse_get_attribute_list, G_ARRAY | G_METHOD);
-    for(NOOP; n > 0; n--){
-        SV* name;
-
-        SPAGAIN;
-        name = POPs;
-        PUTBACK;
-
-        if(hv_exists_ent(seen, name, 0U)){
-            continue;
-        }
-        (void)hv_store_ent(seen, name, &PL_sv_undef, 0U);
+HV*
+mouse_get_namespace(pTHX_ SV* const meta) {
+    SV* const package = get_slot(meta, mouse_package);
+    if(!(package && SvOK(package))){
+        croak("No package name defined for metaclass");
+    }
+    return gv_stashsv(package, GV_ADDMULTI);
+}
 
-        av_push(attrall, newSVsv( mcall1(metaclass, mouse_get_attribute, name) ));
+static AV*
+mouse_calculate_all_attributes(pTHX_ SV* const metaclass) {
+    SV* const avref = mcall0s(metaclass, "_calculate_all_attributes");
+    if(!(SvROK(avref) && SvTYPE(SvRV(avref)) == SVt_PVAV)) {
+        croak("$meta->_calculate_all_attributes did not return an ARRAY reference");
     }
+    return (AV*)SvRV(avref);
 }
 
 XS(XS_Mouse__Object_BUILDARGS); /* prototype */
@@ -85,22 +76,20 @@ mouse_class_has_custom_buildargs(pTHX_ HV* const stash) {
     return buildargs && CvXSUB(GvCV(buildargs)) != XS_Mouse__Object_BUILDARGS;
 }
 
-static void
-mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, HV* const stash, AV* const xc) {
+static AV*
+mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, AV* const xc) {
+    HV* const stash          = MOUSE_xc_stash(xc);
     AV* const linearized_isa = mro_get_linear_isa(stash);
-    I32 const len            = AvFILLp(linearized_isa);
+    I32 const len            = AvFILLp(linearized_isa) + 1;
     I32 i;
     U32 flags             = 0x00;
-    AV* const attrall     = newAV();
     AV* const buildall    = newAV();
     AV* const demolishall = newAV();
-    HV* const seen        = newHV(); /* for attributes */
+    AV* attrall;
 
     ENTER;
     SAVETMPS;
 
-    sv_2mortal((SV*)seen);
-
      /* old data will be delete at the end of the perl scope */
     av_delete(xc, MOUSE_XC_DEMOLISHALL, 0x00);
     av_delete(xc, MOUSE_XC_BUILDALL,    0x00);
@@ -111,6 +100,13 @@ mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, HV* const stas
 
     /* update */
 
+    av_store(xc, MOUSE_XC_BUILDALL,    (SV*)buildall);
+    av_store(xc, MOUSE_XC_DEMOLISHALL, (SV*)demolishall);
+
+    attrall = mouse_calculate_all_attributes(aTHX_ metaclass);
+    SvREFCNT_inc_simple_void_NN(attrall);
+    av_store(xc, MOUSE_XC_ATTRALL,     (SV*)attrall);
+
     if(predicate_calls(metaclass, "is_immutable")){
         flags |= MOUSEf_XC_IS_IMMUTABLE;
     }
@@ -128,14 +124,10 @@ mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, HV* const stas
     }
 
     av_store(xc, MOUSE_XC_FLAGS,       newSVuv(flags));
-    av_store(xc, MOUSE_XC_ATTRALL,     (SV*)attrall);
-    av_store(xc, MOUSE_XC_BUILDALL,    (SV*)buildall);
-    av_store(xc, MOUSE_XC_DEMOLISHALL, (SV*)demolishall);
 
     for(i = 0; i < len; i++){
         SV* const klass = MOUSE_av_at(linearized_isa, i);
         HV* const st    = gv_stashsv(klass, TRUE);
-        SV* meta;
         GV* gv;
 
         gv = stash_fetchs(st, "BUILD", FALSE);
@@ -148,27 +140,18 @@ mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, HV* const stas
         if(gv && GvCVu(gv)){
             av_push(demolishall, newRV_inc((SV*)GvCV(gv)));
         }
-
-        /* ATTRIBUTES */
-        meta = get_metaclass(klass);
-        if(!SvOK(meta)){
-            continue; /* skip non-Mouse classes */
-        }
-
-        mouse_class_push_attribute_list(aTHX_ meta, attrall, seen);
     }
 
     FREETMPS;
     LEAVE;
 
     sv_setuv(MOUSE_xc_gen(xc), mro_get_pkg_gen(stash));
+    return xc;
 }
 
 static AV*
-mouse_get_xc(pTHX_ SV* const metaclass) {
+mouse_get_xc_wo_check(pTHX_ SV* const metaclass) {
     AV* xc;
-    SV* gen;
-    HV* stash;
     MAGIC* mg;
 
     if(!IsObject(metaclass)){
@@ -177,21 +160,18 @@ mouse_get_xc(pTHX_ SV* const metaclass) {
 
     mg = mouse_mg_find(aTHX_ SvRV(metaclass), &mouse_xc_vtbl, 0x00);
     if(!mg){
-        SV* const package = get_slot(metaclass, mouse_package);
-        STRLEN len;
-        const char* const pv = SvPV_const(package, len);
-
-        stash = gv_stashpvn(pv, len, TRUE);
+        /* cache stash for performance */
+        HV* const stash = mouse_get_namespace(aTHX_ metaclass);
         xc    = newAV();
 
-        mg = sv_magicext(SvRV(metaclass), (SV*)xc, PERL_MAGIC_ext, &mouse_xc_vtbl, pv, len);
+        mg = sv_magicext(SvRV(metaclass), (SV*)xc, PERL_MAGIC_ext,
+            &mouse_xc_vtbl, NULL, 0);
         SvREFCNT_dec(xc); /* refcnt++ in sv_magicext */
 
         av_extend(xc, MOUSE_XC_last - 1);
 
         av_store(xc, MOUSE_XC_GEN, newSVuv(0U));
         av_store(xc, MOUSE_XC_STASH, (SV*)stash);
-
         SvREFCNT_inc_simple_void_NN(stash);
     }
     else{
@@ -200,20 +180,33 @@ mouse_get_xc(pTHX_ SV* const metaclass) {
         assert(xc);
         assert(SvTYPE(xc) == SVt_PVAV);
     }
+    return xc;
+}
 
-    gen   = MOUSE_xc_gen(xc);
-
-    if(SvUVX(gen) != 0U && MOUSE_xc_flags(xc) & MOUSEf_XC_IS_IMMUTABLE){
-        return xc;
+static int
+mouse_xc_is_fresh(pTHX_ AV* const xc) {
+    HV* const stash = MOUSE_xc_stash(xc);
+    SV* const gen   = MOUSE_xc_gen(xc);
+    if(SvUVX(gen) != 0U && MOUSE_xc_flags(xc) & MOUSEf_XC_IS_IMMUTABLE) {
+        return TRUE;
     }
+    return SvUVX(gen) == mro_get_pkg_gen(stash);
+}
 
-    stash = MOUSE_xc_stash(xc);
-
-    if(SvUVX(gen) != mro_get_pkg_gen(stash)){
-        mouse_class_update_xc(aTHX_ metaclass, stash, xc);
-    }
+STATIC_INLINE AV*
+mouse_get_xc(pTHX_ SV* const metaclass) {
+    AV* const xc = mouse_get_xc_wo_check(aTHX_ metaclass);
+    return mouse_xc_is_fresh(aTHX_ xc)
+        ? xc
+        : mouse_class_update_xc(aTHX_ metaclass, xc);
+}
 
-    return xc;
+static AV*
+mouse_get_xc_if_fresh(pTHX_ SV* const metaclass) {
+    AV* const xc = mouse_get_xc_wo_check(aTHX_ metaclass);
+    return mouse_xc_is_fresh(aTHX_ xc)
+        ? xc
+        : NULL;
 }
 
 static HV*
@@ -236,13 +229,12 @@ mouse_buildargs(pTHX_ SV* metaclass, SV* const klass, I32 ax, I32 items) {
     else{
         I32 i;
 
-        args = newHV_mortal();
-
         if( (items % 2) != 0 ){
             if(!metaclass){ metaclass = get_metaclass(klass); }
             mouse_throw_error(metaclass, NULL, "Odd number of parameters to new()");
         }
 
+        args = newHV_mortal();
         for(i = 0; i < items; i += 2){
             (void)hv_store_ent(args, ST(i), newSVsv(ST(i+1)), 0U);
         }
@@ -297,7 +289,7 @@ mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const
     I32 const len   = AvFILLp(attrs) + 1;
     I32 i;
     AV* triggers_queue = NULL;
-    U32 used = 0;
+    I32 used = 0;
 
     assert(meta || object);
     assert(args);
@@ -323,7 +315,7 @@ mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const
                 value = mouse_xa_apply_type_constraint(aTHX_ xa, value, flags);
             }
             value = set_slot(object, slot, value);
-            if(SvROK(value) && flags & MOUSEf_ATTR_IS_WEAK_REF){
+            if(flags & MOUSEf_ATTR_IS_WEAK_REF && SvROK(value)){
                 weaken_slot(object, slot);
             }
             if(flags & MOUSEf_ATTR_HAS_TRIGGER){
@@ -345,14 +337,23 @@ mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const
                     mouse_xa_set_default(aTHX_ xa, object);
                 }
             }
-            /* don't check while cloning (or reblesseing) */
-            else if(!is_cloning && flags & MOUSEf_ATTR_IS_REQUIRED) {
+            else if(is_cloning) {
+                if(flags & MOUSEf_ATTR_IS_WEAK_REF){
+                    SV* const value = get_slot(object, slot);
+                    if(SvROK(value)) {
+                        weaken_slot(object, slot);
+                    }
+                }
+            }
+            /* don't check "required" while cloning (or reblesseing) */
+            else if(flags & MOUSEf_ATTR_IS_REQUIRED) {
                 mouse_throw_error(attr, NULL, "Attribute (%"SVf") is required", slot);
             }
         }
     } /* for each attribute */
 
-    if(MOUSE_xc_flags(xc) & MOUSEf_XC_CONSTRUCTOR_IS_STRICT && used < HvUSEDKEYS(args)){
+    if(MOUSE_xc_flags(xc) & MOUSEf_XC_CONSTRUCTOR_IS_STRICT
+            && used < (I32)HvUSEDKEYS(args)){
         mouse_report_unknown_args(aTHX_ meta, attrs, args);
     }
 
@@ -370,18 +371,16 @@ mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const
     if(MOUSE_xc_flags(xc) & MOUSEf_XC_IS_ANON){
         (void)set_slot(object, newSVpvs_flags("__METACLASS__", SVs_TEMP), meta);
     }
-
 }
 
-static SV*
+STATIC_INLINE SV*
 mouse_initialize_metaclass(pTHX_ SV* const klass) {
-    SV* meta = get_metaclass(klass);
-
-    if(!SvOK(meta)){
-        meta = mcall1s(newSVpvs_flags("Mouse::Meta::Class", SVs_TEMP), "initialize", klass);
+    SV* const meta = get_metaclass(klass);
+    if(LIKELY(SvOK(meta))){
+        return meta;
     }
-
-    return meta;
+    return mcall1s(newSVpvs_flags("Mouse::Meta::Class", SVs_TEMP),
+            "initialize", klass);
 }
 
 static void
@@ -445,8 +444,8 @@ mouse_get_modifier_storage(pTHX_
     return (AV*)SvRV(storage_ref);
 }
 
-static void
-XS_Mouse_value_holder(pTHX_ CV* const cv PERL_UNUSED_DECL) {
+static
+XSPROTO(XS_Mouse_value_holder) {
     dVAR; dXSARGS;
     SV* const value = (SV*)XSANY.any_ptr;
     assert(value);
@@ -492,11 +491,7 @@ HV*
 namespace(SV* self)
 CODE:
 {
-    SV* const package = get_slot(self, mouse_package);
-    if(!(package && SvOK(package))){
-        croak("No package name defined");
-    }
-    RETVAL = gv_stashsv(package, GV_ADDMULTI);
+    RETVAL = mouse_get_namespace(aTHX_ self);
 }
 OUTPUT:
     RETVAL
@@ -530,7 +525,7 @@ CODE:
     /*  *{$package . '::' . $name} -> *gv */
     gv = gv_fetchpv(form("%"SVf"::%"SVf, package, name), GV_ADDMULTI, SVt_PVCV);
     mouse_install_sub(aTHX_ gv, code_ref);
-    //CvMETHOD_on((CV*)SvRV(code_ref));
+    /* CvMETHOD_on((CV*)SvRV(code_ref)); */
     (void)set_slot(methods, name, code); /* $self->{methods}{$name} = $code */
 }
 
@@ -567,15 +562,12 @@ void
 linearized_isa(SV* self)
 PPCODE:
 {
-    SV* const stash_ref = mcall0(self, mouse_namespace); /* $self->namespace */
-    AV* linearized_isa;
-    I32 len;
+    /* MOUSE_xc_stash() is not available because the xc system depends on
+       linearized_isa() */
+    HV* const stash          = mouse_get_namespace(aTHX_ self);
+    AV* const linearized_isa = mro_get_linear_isa(stash);
+    I32 const            len = AvFILLp(linearized_isa) + 1;
     I32 i;
-    if(!(SvROK(stash_ref) && SvTYPE(SvRV(stash_ref)) == SVt_PVHV)){
-        croak("namespace() didn't return a HASH reference");
-    }
-    linearized_isa = mro_get_linear_isa((HV*)SvRV(stash_ref));
-    len = AvFILLp(linearized_isa) + 1;
     EXTEND(SP, len);
     for(i = 0; i < len; i++){
         PUSHs(AvARRAY(linearized_isa)[i]);
@@ -607,7 +599,7 @@ CODE:
 
     object = mouse_instance_create(aTHX_ MOUSE_xc_stash(xc));
     mouse_class_initialize_object(aTHX_ meta, object, args, FALSE);
-    mouse_buildall(aTHX_ xc, object, sv_2mortal(newRV_inc((SV*)args))); /* BUILDALL */
+    mouse_buildall(aTHX_ xc, object, sv_2mortal(newRV_inc((SV*)args)));
     ST(0) = object; /* because object is mortal, we should return it as is */
     XSRETURN(1);
 }
@@ -639,6 +631,19 @@ CODE:
     mouse_class_initialize_object(aTHX_ meta, object, args, is_cloning);
 }
 
+void
+_invalidate_metaclass_cache(SV* meta)
+CODE:
+{
+    AV* const xc = mouse_get_xc_if_fresh(aTHX_ meta);
+    if(xc) {
+        SV* const gen = MOUSE_xc_gen(xc);
+        sv_setuv(gen, 0U);
+    }
+    delete_slot(meta, newSVpvs_flags("_mouse_cache_", SVs_TEMP));
+}
+
+
 MODULE = Mouse  PACKAGE = Mouse::Meta::Role
 
 BOOT:
@@ -666,7 +671,8 @@ ALIAS:
     get_after_method_modifiers  = MOUSE_M_AFTER
 PPCODE:
 {
-    AV* const storage = mouse_get_modifier_storage(aTHX_ self, (enum mouse_modifier_t)ix, name);
+    AV* const storage = mouse_get_modifier_storage(aTHX_ self,
+                            (enum mouse_modifier_t)ix, name);
     I32 const len     = av_len(storage) + 1;
     if(GIMME_V == G_ARRAY) {
         I32 i;
@@ -734,7 +740,8 @@ CODE:
     /* new_object */
     object = mouse_instance_create(aTHX_ MOUSE_xc_stash(xc));
     mouse_class_initialize_object(aTHX_ meta, object, (HV*)SvRV(args), FALSE);
-    mouse_buildall(aTHX_ xc, object, args); /* BUILDALL */
+    /* BUILDALL */
+    mouse_buildall(aTHX_ xc, object, args);
     ST(0) = object; /* because object is mortal, we should return it as is */
     XSRETURN(1);
 }
@@ -747,17 +754,17 @@ ALIAS:
 CODE:
 {
     SV* const meta = get_metaclass(object);
+    AV* xc;
     AV* demolishall;
-    I32 len, i;
+    I32 len;
+    I32 i;
 
     if(!IsObject(object)){
         croak("You must not call %s as a class method",
             ix == 0 ? "DESTROY" : "DEMOLISHALL");
     }
 
-    if(SvOK(meta)){
-        AV* const xc = mouse_get_xc(aTHX_ meta);
-
+    if(SvOK(meta) && (xc = mouse_get_xc_if_fresh(aTHX_ meta))) {
         demolishall = MOUSE_xc_demolishall(xc);
     }
     else { /* The metaclass is already destroyed */
@@ -776,7 +783,7 @@ CODE:
         }
     }
 
-    len      = AvFILLp(demolishall) + 1;
+    len  = AvFILLp(demolishall) + 1;
     if(len > 0){
         SV* const in_global_destruction = boolSV(PL_dirty);
         SAVEI32(PL_statusvalue); /* local $? */