Simplify error check routines in XS

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

diff --git a/xs-src/MouseTypeConstraints.xs b/xs-src/MouseTypeConstraints.xs
index 8b94c85..34ab1ea 100644 (file)
--- a/xs-src/MouseTypeConstraints.xs
+++ b/xs-src/MouseTypeConstraints.xs
@@ -530,10 +530,7 @@ mouse_generate_can_predicate_for(pTHX_ SV* const methods, const char* const pred
     I32 len;
     I32 i;
 
-    SvGETMAGIC(methods);
-    if(!IsArrayRef(methods)){
-        croak("You must pass an ARRAY ref method names");
-    }
+    must_ref(methods, "an ARRAY ref for method names", SVt_PVAV);
     av = (AV*)SvRV(methods);
 
     len = av_len(av) + 1;
@@ -659,10 +656,13 @@ BOOT:
     INSTALL_SIMPLE_READER(TypeConstraint, parent);
     INSTALL_SIMPLE_READER(TypeConstraint, message);
 
+    INSTALL_SIMPLE_READER(TypeConstraint, type_parameter);
+
     INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint);
     INSTALL_SIMPLE_READER(TypeConstraint, _compiled_type_coercion); /* Mouse specific */
 
     INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion);
+    INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, __is_parameterized, type_parameter); /* Mouse specific */
 
 void
 compile_type_constraint(SV* self)
@@ -738,6 +738,6 @@ CODE:
     else{
         check = newRV_inc((SV*)mouse_tc_generate(aTHX_ NULL, (check_fptr_t)mouse_types_check, (SV*)checks));
     }
-    set_slots(self, "compiled_type_constraint", check);
+    (void)set_slots(self, "compiled_type_constraint", check);
 }