Oilpan: IDL union objects should be put in HeapVector

Source/bindings/scripts/v8_types.py

Index: Source/bindings/scripts/v8_types.py
diff --git a/Source/bindings/scripts/v8_types.py b/Source/bindings/scripts/v8_types.py
index 5e8a45aad46f67fd4d5df1ced2e418bff463a361..179601fa04f07e6937d3f3be895acdcab4420d8a 100644
--- a/Source/bindings/scripts/v8_types.py
+++ b/Source/bindings/scripts/v8_types.py
@@ -310,7 +310,7 @@ IdlType.set_will_be_garbage_collected_types = classmethod(
 
 
 def gc_type(idl_type):
-    if idl_type.is_garbage_collected or idl_type.is_dictionary:
+    if idl_type.is_garbage_collected or idl_type.is_dictionary or idl_type.is_union_type:

[haraken, 2015/05/01 14:58:13]

bashi-san@: Maybe would it make more sense to set is_garbage_collected for
dictionaries and union types?

[bashi, 2015/05/07 23:59:23]

Probably, but we might want to seek a better naming.

         return 'GarbageCollectedObject'
     if idl_type.is_will_be_garbage_collected:
         return 'WillBeGarbageCollectedObject'
@@ -322,7 +322,8 @@ IdlTypeBase.gc_type = property(gc_type)
 def is_traceable(idl_type):
     return (idl_type.is_garbage_collected
             or idl_type.is_will_be_garbage_collected
-            or idl_type.is_dictionary)
+            or idl_type.is_dictionary
+            or idl_type.is_union_type)
 
 IdlTypeBase.is_traceable = property(is_traceable)
 IdlUnionType.is_traceable = property(
@@ -590,7 +591,7 @@ def v8_value_to_cpp_value_array_or_sequence(native_array_element_type, v8_value,
         this_cpp_type = None
         ref_ptr_type = cpp_ptr_type('RefPtr', 'Member', native_array_element_type.gc_type)
         expression_format = '(to{ref_ptr_type}NativeArray<{native_array_element_type}, V8{native_array_element_type}>({v8_value}, {index}, {isolate}, exceptionState))'
-    elif native_array_element_type.is_dictionary:
+    elif native_array_element_type.is_dictionary or native_array_element_type.is_union_type:
         ref_ptr_type = None
         this_cpp_type = native_array_element_type.cpp_type
         expression_format = 'toImplHeapArray<{cpp_type}>({v8_value}, {index}, {isolate}, exceptionState)'