Disallow [Measure] and [MeasureAs] on interfaces without a constructor

third_party/WebKit/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 213 matching lines @@
         'number_of_required_arguments':
             number_of_required_arguments(constructor),
     } for constructor in interface.custom_constructors]
 
     # [NamedConstructor]
     named_constructor = named_constructor_context(interface)
 
     if constructors or custom_constructors or named_constructor:
         if interface.is_partial:
             raise Exception('[Constructor] and [NamedConstructor] MUST NOT be'
-                            ' specified on partial interface definitions:'
+                            ' specified on partial interface definitions: '
                             '%s' % interface.name)
 
         includes.add('bindings/core/v8/V8ObjectConstructor.h')
         includes.add('core/frame/LocalDOMWindow.h')
+    elif 'Measure' in extended_attributes or 'MeasureAs' in extended_attributes:
+        raise Exception('[Measure] or [MeasureAs] specified for interface without a constructor: '
+                        '%s' % interface.name)
 
     # [Unscopeable] attributes and methods
     unscopeables = []
     for attribute in interface.attributes:
         if 'Unscopeable' in attribute.extended_attributes:
             unscopeables.append((attribute.name, v8_utilities.runtime_enabled_function_name(attribute)))
     for method in interface.operations:
         if 'Unscopeable' in method.extended_attributes:
             unscopeables.append((method.name, v8_utilities.runtime_enabled_function_name(method)))
 
@@ skipping 1138 matching lines @@
 
     extended_attributes = deleter.extended_attributes
     idl_type = deleter.idl_type
     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),
     }