codegen: Fix type check for vfunc returning SimpleType structs

Fixes bug 667890.

diff --git a/codegen/valaccodemethodmodule.vala b/codegen/valaccodemethodmodule.vala
index a5be3346544fc7e5fe05a20e7934d7af24b33782..8ef6e66899128328d51ba263262a43aac1a6964d 100644 (file)
--- a/codegen/valaccodemethodmodule.vala
+++ b/codegen/valaccodemethodmodule.vala
@@ -912,6 +912,13 @@ public abstract class Vala.CCodeMethodModule : CCodeStructModule {
 
                push_function (vfunc);
 
+               if (context.assert && m.return_type.data_type is Struct && ((Struct) m.return_type.data_type).is_simple_type () && default_value_for_type (m.return_type, false) == null) {
+                       // the type check will use the result variable
+                       var vardecl = new CCodeVariableDeclarator ("result", default_value_for_type (m.return_type, true));
+                       vardecl.init0 = true;
+                       ccode.add_declaration (get_ccode_name (m.return_type), vardecl);
+               }
+
                // add a typecheck statement for "self"
                create_method_type_check_statement (m, return_type, (TypeSymbol) m.parent_symbol, true, "self");
 

diff --git a/tests/Makefile.am b/tests/Makefile.am
index d4e1af194ddc523c76574fff2b19cadf7c993a44..8835bff73cef97df61028069bf33cc1fbbd97160 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -76,6 +76,7 @@ TESTS = \
        structs/bug658048.vala \
        structs/bug660426.vala \
        structs/bug661945.vala \
+       structs/bug667890.vala \
        delegates/delegates.vala \
        delegates/bug539166.vala \
        delegates/bug595610.vala \

diff --git a/tests/structs/bug667890.vala b/tests/structs/bug667890.vala
new file mode 100644 (file)
index 0000000..768ab8c
--- /dev/null
+++ b/tests/structs/bug667890.vala
@@ -0,0 +1,10 @@
+[SimpleType]
+struct Foo {
+       public int foo;
+}
+
+interface Bar : Object {
+       public abstract Foo bar ();
+}
+
+void main () { }