Use bit-or, not simple assignment

[gitmo/Mouse.git] / xs-src / Mouse.xs

diff --git a/xs-src/Mouse.xs b/xs-src/Mouse.xs
index 4ab4848..137e5a0 100644 (file)
--- a/xs-src/Mouse.xs
+++ b/xs-src/Mouse.xs
@@ -3,6 +3,7 @@
 SV* mouse_package;
 SV* mouse_namespace;
 SV* mouse_methods;
+SV* mouse_name;
 
 MODULE = Mouse  PACKAGE = Mouse::Util
 
@@ -12,12 +13,13 @@ BOOT:
     mouse_package   = newSVpvs_share("package");
     mouse_namespace = newSVpvs_share("namespace");
     mouse_methods   = newSVpvs_share("methods");
+    mouse_name      = newSVpvs_share("name");
 
     MOUSE_CALL_BOOT(Mouse__Util__TypeConstraints);
 
 
 bool
-is_class_loaded(SV* sv = &PL_sv_undef)
+is_class_loaded(SV* sv)
 
 void
 get_code_info(CV* code)
@@ -84,6 +86,46 @@ CODE:
 OUTPUT:
     RETVAL
 
+void
+generate_isa_predicate_for(SV* klass, const char* predicate_name = NULL)
+PPCODE:
+{
+    STRLEN klass_len;
+    const char* klass_pv;
+    HV* stash;
+    CV* xsub;
+
+    if(!SvOK(klass)){
+        croak("You must define a class name for generate_for");
+    }
+    klass_pv = SvPV_const(klass, klass_len);
+    klass_pv = mouse_canonicalize_package_name(klass_pv);
+
+    if(strNE(klass_pv, "UNIVERSAL")){
+        static MGVTBL mouse_util_type_constraints_vtbl; /* not used, only for identity */
+
+        xsub = newXS(predicate_name, XS_isa_check, __FILE__);
+
+        stash = gv_stashpvn(klass_pv, klass_len, GV_ADD);
+
+        CvXSUBANY(xsub).any_ptr = sv_magicext(
+            (SV*)xsub,
+            (SV*)stash, /* mg_obj */
+            PERL_MAGIC_ext,
+            &mouse_util_type_constraints_vtbl,
+            klass_pv,   /* mg_ptr */
+            klass_len   /* mg_len */
+        );
+    }
+    else{
+        xsub = newXS(predicate_name, XS_isa_check_for_universal, __FILE__);
+    }
+
+    if(predicate_name == NULL){ /* anonymous predicate */
+        XPUSHs( newRV_noinc((SV*)xsub) );
+    }
+}
+
 
 MODULE = Mouse  PACKAGE = Mouse::Meta::Module
 
@@ -110,8 +152,8 @@ void
 add_method(SV* self, SV* name, SV* code, ...)
 CODE:
 {
-    SV* const package = mouse_instance_get_slot(self, mouse_package); /* $self->{package} */
-    SV* const methods = mouse_instance_get_slot(self, mouse_methods); /* $self->{methods} */
+    SV* const package = mouse_instance_get_slot(aTHX_ self, mouse_package); /* $self->{package} */
+    SV* const methods = mouse_instance_get_slot(aTHX_ self, mouse_methods); /* $self->{methods} */
     GV* gv;
     SV* code_ref;
 
@@ -148,7 +190,7 @@ CODE:
     }
     sv_setsv_mg((SV*)gv, code_ref); /* *gv = $code_ref */
 
-    mouse_instance_set_slot(methods, name, code); /* $self->{methods}{$name} = $code */
+    mouse_instance_set_slot(aTHX_ methods, name, code); /* $self->{methods}{$name} = $code */
 
     /* TODO: name the CODE ref if it's anonymous */
     //code_entity = (CV*)SvRV(code_ref);