X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=xs-src%2FMouse.xs;h=7580f7ac5dde26741a68beb9ef6c3e538c376f4e;hp=e4f8a343e89a8d8d09725c73da6ca74673d4df1e;hb=047d7af00ab8b37c6369c032211bfe492fe6cd05;hpb=a4b901ac53a9eb592740cd6fb20a136e142671db

diff --git a/xs-src/Mouse.xs b/xs-src/Mouse.xs
index e4f8a34..7580f7a 100644
--- a/xs-src/Mouse.xs
+++ b/xs-src/Mouse.xs
@@ -1,9 +1,165 @@
+#define  NEED_newSVpvn_flags_GLOBAL
 #include "mouse.h"
 
 SV* mouse_package;
 SV* mouse_namespace;
 SV* mouse_methods;
 SV* mouse_name;
+SV* mouse_get_attribute;
+SV* mouse_get_attribute_list;
+
+
+#define MOUSE_xc_gen(a)         MOUSE_av_at((a), MOUSE_XC_GEN)
+#define MOUSE_xc_attrall(a)     ( (AV*)MOUSE_av_at((a), MOUSE_XC_ATTRALL) )
+#define MOUSE_xc_buildall(a)    ( (AV*)MOUSE_av_at((a), MOUSE_XC_BUILDALL) )
+#define MOUSE_xc_demolishall(a) ( (AV*)MOUSE_av_at((a), MOUSE_XC_DEOLISHALL) )
+
+/* Mouse XS Metaclass object */
+enum mouse_xc_ix_t{
+    MOUSE_XC_GEN,          /* class generation */
+    MOUSE_XC_ATTRALL,      /* all the attributes */
+    MOUSE_XC_BUILDALL,     /* all the BUILD methods */
+    MOUSE_XC_DEMOLISHALL,  /* all the DEMOLISH methods */
+
+    MOUSE_XC_last
+};
+
+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);
+
+        av_push(attrall, newSVsv( mcall1(metaclass, mouse_get_attribute, name) ));
+    }
+}
+
+static void
+mouse_class_update_xc(pTHX_ SV* const metaclass PERL_UNUSED_DECL, HV* const stash, AV* const xc) {
+    AV* const linearized_isa = mro_get_linear_isa(stash);
+    I32 const len            = AvFILLp(linearized_isa);
+    I32 i;
+    AV* const attrall     = newAV();
+    AV* const buildall    = newAV();
+    AV* const demolishall = newAV();
+    HV* const seen        = newHV(); /* for attributes */
+
+    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);
+    av_delete(xc, MOUSE_XC_ATTRALL,     0x00);
+
+    SvREFCNT_inc_simple_void_NN(linearized_isa);
+    sv_2mortal((SV*)linearized_isa);
+
+    /* update */
+
+    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);
+        SV* meta;
+        GV* gv;
+
+        gv = stash_fetchs(stash, "BUILD", FALSE);
+        if(gv && GvCVu(gv)){
+            av_push(buildall, newRV_inc((SV*)GvCV(gv)));
+        }
+
+        gv = stash_fetchs(stash, "DEMOLISH", FALSE);
+        if(gv && GvCVu(gv)){
+            av_push(demolishall, newRV_inc((SV*)GvCV(gv)));
+        }
+
+        /* ATTRIBUTES */
+        meta = get_metaclass_by_name(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));
+}
+
+AV*
+mouse_get_xc(pTHX_ SV* const metaclass) {
+    AV* xc;
+    SV* gen;
+    HV* stash;
+    MAGIC* mg;
+
+    if(!IsObject(metaclass)){
+        croak("Not a Mouse metaclass");
+    }
+
+    mg = mouse_mg_find(aTHX_ SvRV(metaclass), &mouse_xc_vtbl, 0x00);
+    if(!mg){
+        SV* const package = get_slot(metaclass, mouse_package);
+
+        stash = gv_stashsv(package, TRUE);
+        xc    = newAV();
+
+        mg = sv_magicext(SvRV(metaclass), (SV*)xc, PERL_MAGIC_ext, &mouse_xc_vtbl, (char*)stash, HEf_SVKEY);
+        SvREFCNT_dec(xc); /* refcnt++ in sv_magicext */
+
+        av_extend(xc, MOUSE_XC_last - 1);
+        av_store(xc, MOUSE_XC_GEN, newSViv(0));
+    }
+    else{
+        stash = (HV*)MOUSE_mg_ptr(mg);
+        xc    = (AV*)MOUSE_mg_obj(mg);
+
+        assert(stash);
+        assert(SvTYPE(stash) == SVt_PVAV);
+
+        assert(xc);
+        assert(SvTYPE(xc) == SVt_PVAV);
+    }
+
+    gen = MOUSE_xc_gen(xc);
+    if(SvUV(gen) != mro_get_pkg_gen(stash)){
+        mouse_class_update_xc(aTHX_ metaclass, stash, xc);
+    }
+
+    return xc;
+}
+
+AV*
+mouse_get_all_attributes(pTHX_ SV* const metaclass) {
+    AV* const xc = mouse_get_xc(aTHX_ metaclass);
+    return MOUSE_xc_attrall(xc);
+}
 
 MODULE = Mouse  PACKAGE = Mouse
 
@@ -15,6 +171,9 @@ BOOT:
     mouse_methods   = newSVpvs_share("methods");
     mouse_name      = newSVpvs_share("name");
 
+    mouse_get_attribute      = newSVpvs_share("get_attribute");
+    mouse_get_attribute_list = newSVpvs_share("get_attribute_list");
+
     MOUSE_CALL_BOOT(Mouse__Util);
     MOUSE_CALL_BOOT(Mouse__Util__TypeConstraints);
     MOUSE_CALL_BOOT(Mouse__Meta__Method__Accessor__XS);
@@ -120,6 +279,19 @@ PPCODE:
     }
 }
 
+void
+get_all_attributes(SV* self)
+PPCODE:
+{
+    AV* const all_attrs = mouse_get_all_attributes(aTHX_ self);
+    I32 const len       = AvFILLp(all_attrs) + 1;
+    I32 i;
+
+    EXTEND(SP, len);
+    for(i = 0; i < len; i++){
+        PUSHs( MOUSE_av_at(all_attrs, i) );
+    }
+}
 
 MODULE = Mouse  PACKAGE = Mouse::Meta::Role