initialize result variables in v8 bindings

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 7ad89b54b406ac6d9f16c728b82f35cccbc84d7c..95c9960e694d2dbb4e039b982da6c65fae53650a 100644
--- a/Source/bindings/scripts/v8_types.py
+++ b/Source/bindings/scripts/v8_types.py
@@ -120,6 +120,19 @@ CPP_SPECIAL_CONVERSION_RULES = {
 }
 
 
+def cpp_type_initializer(idl_type):
+    """Returns a string containing a C++ initialization statement for the
+    corresponding type.
+
+    |idl_type| argument is of type IdlType.
+    """
+
+    if (idl_type.is_numeric_type):
+        return ' = 0'
+    if idl_type.base_type == 'boolean':
+        return ' = false'
+    return ''

[Jens Widell, 2014/07/16 07:25:10]

Return None by default?

[Mostyn Bramley-Moore, 2014/07/16 07:46:56]

If I do that then we can't blindly use {{attribute.cpp_type_initializer}} in the
templates- it would have to be wrapped in a check that it's not None.

+

[Jens Widell, 2014/07/16 07:25:10]

Two blank lines between function definitions.

I'd put this after cpp_type(). Also consider putting it as a property on IdlType
(like cpp_type) to make it accessible simply as

  idl_type.cpp_type_initializer

elsewhere.

[Mostyn Bramley-Moore, 2014/07/16 07:46:56]

Done.

 def cpp_type(idl_type, extended_attributes=None, raw_type=False, used_as_argument=False, used_as_variadic_argument=False, used_in_cpp_sequence=False):
     """Returns C++ type corresponding to IDL type.