HTMLConstructor implementation

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 273 matching lines @@
                     if constructor.name == 'Constructor']
     if len(constructors) > 1:
         context['constructor_overloads'] = overloads_context(interface, constructors)
 
     # [CustomConstructor]
     custom_constructors = [{  # Only needed for computing interface length
         'number_of_required_arguments':
             number_of_required_arguments(constructor),
     } for constructor in interface.custom_constructors]
 
+    # [HTMLConstructor]
+    has_html_constructor = 'HTMLConstructor' in extended_attributes
+    # https://html.spec.whatwg.org/multipage/dom.html#html-element-constructors
+    if has_html_constructor:
+        if ('Constructor' in extended_attributes) or ('NoInterfaceObject' in extended_attributes):
+            raise Exception('[Constructor] and [NoInterfaceObject] MUST NOT be'
+                            ' specified with [HTMLConstructor]: '
+                            '%s' % interface.name)
+
     # [NamedConstructor]
     named_constructor = named_constructor_context(interface)
 
-    if constructors or custom_constructors or named_constructor:
+    if constructors or custom_constructors or has_html_constructor or named_constructor:
         if interface.is_partial:
             raise Exception('[Constructor] and [NamedConstructor] MUST NOT be'
                             ' 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)
@@ skipping 15 matching lines @@
         interface.named_property_deleter,
     )
     has_ce_reactions = any(setter_or_deleter and 'CEReactions' in setter_or_deleter.extended_attributes
                            for setter_or_deleter in setter_or_deleters)
     if has_ce_reactions:
         includes.add('core/dom/custom/CEReactionsScope.h')
 
     context.update({
         'constructors': constructors,
         'has_custom_constructor': bool(custom_constructors),
+        'has_html_constructor': has_html_constructor,
         'interface_length':
             interface_length(constructors + custom_constructors),
         'is_constructor_raises_exception': extended_attributes.get('RaisesException') == 'Constructor',  # [RaisesException=Constructor]
         'named_constructor': named_constructor,
         'unscopables': sorted(unscopables),
     })
 
     # Constants
     context.update({
         'constants': [constant_context(constant, interface) for constant in interface.constants],
@@ skipping 1076 matching lines @@
     extended_attributes = deleter.extended_attributes
     is_call_with_script_state = v8_utilities.has_extended_attribute_value(deleter, 'CallWith', 'ScriptState')
     is_ce_reactions = 'CEReactions' in extended_attributes
     return {
         'is_call_with_script_state': is_call_with_script_state,
         'is_ce_reactions': is_ce_reactions,
         'is_custom': 'Custom' in extended_attributes,
         'is_raises_exception': 'RaisesException' in extended_attributes,
         'name': cpp_name(deleter),
     }