[WIP][NotForLand] IDL dictionary support

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 0a070f8074c00ca2bed6b7a4c1d70b52bf6b4bee..ce9938c99657e91ca22995abfd92c87d751823bc 100644
--- a/Source/bindings/scripts/v8_types.py
+++ b/Source/bindings/scripts/v8_types.py
@@ -120,7 +120,8 @@ CPP_SPECIAL_CONVERSION_RULES = {
 }
 
 
-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):
+# FIXME: too many flags.
+def cpp_type(idl_type, extended_attributes=None, raw_type=False, used_as_argument=False, used_as_variadic_argument=False, used_as_member=False, used_as_return_type=False):
     """Returns C++ type corresponding to IDL type.
 
     |idl_type| argument is of type IdlType, while return value is a string
@@ -134,8 +135,11 @@ def cpp_type(idl_type, extended_attributes=None, raw_type=False, used_as_argumen
             bool, True if the C++ type is used as an argument of a method.
         used_as_variadic_argument:
             bool, True if the C++ type is used as a variadic argument of a method.
-        used_in_cpp_sequence:
-            bool, True if the C++ type is used as an element of an array or sequence.
+        used_as_member:
+            bool, True if the C++ type is used as a member of a container.
+            Containers can be an array, a sequence or a dictionary.
+        used_as_return_type:
+            bool, True if the C++ type is used as a return type of a method.
     """
     def string_mode():
         if extended_attributes.get('TreatNullAs') == 'EmptyString':
@@ -156,7 +160,8 @@ def cpp_type(idl_type, extended_attributes=None, raw_type=False, used_as_argumen
         native_array_element_type = idl_type.native_array_element_type
     if native_array_element_type:
         vector_type = cpp_ptr_type('Vector', 'HeapVector', native_array_element_type.gc_type)
-        return cpp_template_type(vector_type, native_array_element_type.cpp_type_args(used_in_cpp_sequence=True))
+        vector_template_type = cpp_template_type(vector_type, native_array_element_type.cpp_type_args(used_as_member=True))
+        return vector_template_type
 
     # Simple types
     base_idl_type = idl_type.base_type
@@ -171,7 +176,7 @@ def cpp_type(idl_type, extended_attributes=None, raw_type=False, used_as_argumen
         return CPP_SPECIAL_CONVERSION_RULES[base_idl_type]
 
     if base_idl_type in NON_WRAPPER_TYPES:
-        return ('PassRefPtr<%s>' if used_as_argument else 'RefPtr<%s>') % base_idl_type
+        return ('PassRefPtr<%s>' if used_as_argument or used_as_return_type else 'RefPtr<%s>') % base_idl_type
     if idl_type.is_string_type:
         if not raw_type:
             return 'String'
@@ -183,8 +188,8 @@ def cpp_type(idl_type, extended_attributes=None, raw_type=False, used_as_argumen
         implemented_as_class = idl_type.implemented_as
         if raw_type:
             return implemented_as_class + '*'
-        new_type = 'Member' if used_in_cpp_sequence else 'RawPtr'
-        ptr_type = cpp_ptr_type(('PassRefPtr' if used_as_argument else 'RefPtr'), new_type, idl_type.gc_type)
+        new_type = 'Member' if used_as_member else 'RawPtr'
+        ptr_type = cpp_ptr_type(('PassRefPtr' if used_as_argument or used_as_return_type else 'RefPtr'), new_type, idl_type.gc_type)
         return cpp_template_type(ptr_type, implemented_as_class)
     # Default, assume native type is a pointer with same type name as idl type
     return base_idl_type + '*'
@@ -458,6 +463,8 @@ def v8_value_to_cpp_value(idl_type, extended_attributes, v8_value, index, isolat
         cpp_expression_format = (
             '{v8_value}->Is{idl_type}() ? '
             'V8{idl_type}::toNative(v8::Handle<v8::{idl_type}>::Cast({v8_value})) : 0')
+    elif idl_type.is_dictionary:
+        cpp_expression_format = 'V8{idl_type}::toNative({isolate}, {v8_value})'
     else:
         cpp_expression_format = (
             'V8{idl_type}::toNativeWithTypeCheck({isolate}, {v8_value})')