Introduce SmallTypedArray IDL type and use it for bufferSubData

Source/bindings/scripts/v8_interface.py

 # Copyright (C) 2013 Google Inc. All rights reserved.
 # coding=utf-8
 #
 # 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
@@ skipping 981 matching lines @@
     # has one of the following types at position i of its type list,
     # • a nullable type
     try:
         method = next(method for idl_type, method in idl_types_methods
                       if idl_type.is_nullable)
         test = 'isUndefinedOrNull(%s)' % cpp_value
         yield test, method
     except StopIteration:
         pass
 
+    # Special case SmallTypedArray, as this is a ArrayBufferView with special
+    # properties that would otherwise be covered by 4.
+    for idl_type, method in ((idl_type, method)
+                             for idl_type, method in idl_types_methods
+                             if idl_type.name == 'SmallTypedArray'):
+        test = 'V8ArrayBufferView::hasInstance({cpp_value}, info.GetIsolate()) && !v8::ArrayBufferView::Cast(*{cpp_value})->HasBuffer()'.format(idl_type=idl_type.base_type, cpp_value=cpp_value)
+        yield test, method
+
     # 4. Otherwise: if V is a platform object – but not a platform array
     # object – and there is an entry in S that has one of the following
     # types at position i of its type list,
     # • an interface type that V implements
     # (Unlike most of these tests, this can return multiple methods, since we
     #  test if it implements an interface. Thus we need a for loop, not a next.)
     # (We distinguish wrapper types from built-in interface types.)
     for idl_type, method in ((idl_type, method)
                              for idl_type, method in idl_types_methods
                              if idl_type.is_wrapper_type):
@@ skipping 315 matching lines @@
 
     idl_type = deleter.idl_type
     extended_attributes = deleter.extended_attributes
     is_call_with_script_state = v8_utilities.has_extended_attribute_value(deleter, 'CallWith', 'ScriptState')
     return {
         'is_call_with_script_state': is_call_with_script_state,
         'is_custom': 'Custom' in extended_attributes,
         'is_raises_exception': 'RaisesException' in extended_attributes,
         'name': cpp_name(deleter),
     }