IDL: Add forEach() method to iterable<>/maplike<>/setlike<> interfaces

Source/bindings/scripts/idl_definitions.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 # copyright notice, this list of conditions and the following disclaimer
@@ skipping 487 matching lines @@
 ################################################################################
 # Operations
 ################################################################################
 
 class IdlOperation(TypedObject):
     def __init__(self, idl_name, node=None):
         self.arguments = []
         self.extended_attributes = {}
         self.specials = []
         self.is_constructor = False
+        self.idl_name = idl_name
+        self.is_static = False
 
         if not node:
-            self.is_static = False
             return
-        self.idl_name = idl_name
+
         self.name = node.GetName()  # FIXME: should just be: or ''
         # FIXME: AST should use None internally
         if self.name == '_unnamed_':
             self.name = ''
 
         self.is_static = bool(node.GetProperty('STATIC'))
         property_dictionary = node.GetProperties()
         for special_keyword in SPECIAL_KEYWORD_LIST:
             if special_keyword in property_dictionary:
                 self.specials.append(special_keyword.lower())
@@ skipping 44 matching lines @@
         TypedObject.resolve_typedefs(self, typedefs)
         for argument in self.arguments:
             argument.resolve_typedefs(typedefs)
 
 
 ################################################################################
 # Arguments
 ################################################################################
 
 class IdlArgument(TypedObject):
-    def __init__(self, idl_name, node):
+    def __init__(self, idl_name, node=None):
         self.extended_attributes = {}
         self.idl_type = None
-        self.is_optional = node.GetProperty('OPTIONAL')  # syntax: (optional T)
+        self.is_optional = False  # syntax: (optional T)
         self.is_variadic = False  # syntax: (T...)
         self.idl_name = idl_name
+        self.default_value = None
+
+        if not node:
+            return
+
+        self.is_optional = node.GetProperty('OPTIONAL')
         self.name = node.GetName()
-        self.default_value = None
 
         children = node.GetChildren()
         for child in children:
             child_class = child.GetClass()
             if child_class == 'Type':
                 self.idl_type = type_node_to_type(child)
             elif child_class == 'ExtAttributes':
                 self.extended_attributes = ext_attributes_node_to_extended_attributes(idl_name, child)
             elif child_class == 'Argument':
                 child_name = child.GetName()
@@ skipping 341 matching lines @@
     child_class = child.GetClass()
     if child_class != 'Type':
         raise ValueError('Unrecognized node class: %s' % child_class)
     return type_node_to_type(child)
 
 
 def union_type_node_to_idl_union_type(node):
     member_types = [type_node_to_type(member_type_node)
                     for member_type_node in node.GetChildren()]
     return IdlUnionType(member_types)