Support custom to native conversions.

lib/dom/scripts/generator.py

 #!/usr/bin/python
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 """This module provides shared functionality for systems to generate
 Dart APIs from the IDL database."""
 
 import re
 import string
@@ skipping 409 matching lines @@
 # name
 def TypeName(type_ids, interface):
   # Dynamically type this field for now.
   return 'Dynamic'
 
 # ------------------------------------------------------------------------------
 
 class IDLTypeInfo(object):
   def __init__(self, idl_type, dart_type=None,
                native_type=None, ref_counted=True,
-               has_dart_wrapper=True,
+               custom_to_native=False,
                custom_to_dart=False, conversion_includes=[]):
     self._idl_type = idl_type
     self._dart_type = dart_type
     self._native_type = native_type
     self._ref_counted = ref_counted
-    self._has_dart_wrapper = has_dart_wrapper
+    self._custom_to_native = custom_to_native
     self._custom_to_dart = custom_to_dart
     self._conversion_includes = conversion_includes + [idl_type]
 
   def idl_type(self):
     return self._idl_type
 
   def dart_type(self):
     return self._dart_type or self._idl_type
 
   def native_type(self):
     return self._native_type or self._idl_type
 
   def parameter_adapter_info(self):
     native_type = self.native_type()
     if self._ref_counted:
       native_type = 'RefPtr< %s >' % native_type
-    if self._has_dart_wrapper:
-      wrapper_type = 'Dart%s' % self.idl_type()
-      adapter_type = 'ParameterAdapter<%s, %s>' % (native_type, wrapper_type)
-      return (adapter_type, '"%s.h"' % wrapper_type)
-    return ('ParameterAdapter< %s >' % native_type, '"%s.h"' % self._idl_type)
+    wrapper_type = 'Dart%s' % self.idl_type()
+    adapter_type = 'ParameterAdapter<%s, %s>' % (native_type, wrapper_type)
+    return (adapter_type, '"%s.h"' % wrapper_type)
+
+  def custom_to_native(self):
+    return self._custom_to_native
 
   def parameter_type(self):
     return '%s*' % self.native_type()
 
   def webcore_includes(self):
     WTF_INCLUDES = [
         'ArrayBuffer',
         'ArrayBufferView',
         'Float32Array',
         'Float64Array',
@@ skipping 167 matching lines @@
 
     'DOMStringList': PrimitiveIDLTypeInfo('DOMStringList', dart_type='List<String>'),
     'sequence': PrimitiveIDLTypeInfo('sequence', dart_type='List'),
     'void': PrimitiveIDLTypeInfo('void', dart_type='void'),
 
     'CSSRule': IDLTypeInfo('CSSRule', conversion_includes=['CSSImportRule']),
     'DOMException': IDLTypeInfo('DOMCoreException', dart_type='DOMException'),
     'DOMStringMap': IDLTypeInfo('DOMStringMap', dart_type='Map<String, String>'),
     'DOMWindow': IDLTypeInfo('DOMWindow', custom_to_dart=True),
     'Element': IDLTypeInfo('Element', custom_to_dart=True),
-    'EventListener': IDLTypeInfo('EventListener', has_dart_wrapper=False),
-    'EventTarget': IDLTypeInfo('EventTarget', has_dart_wrapper=False),
+    'EventListener': IDLTypeInfo('EventListener', custom_to_native=True),
+    'EventTarget': IDLTypeInfo('EventTarget', custom_to_native=True),
     'HTMLElement': IDLTypeInfo('HTMLElement', custom_to_dart=True),
-    'IDBAny': IDLTypeInfo('IDBAny', dart_type='Dynamic', has_dart_wrapper=False),
-    'IDBKey': IDLTypeInfo('IDBKey', dart_type='Dynamic', has_dart_wrapper=False),
-    'MediaQueryListListener': IDLTypeInfo('MediaQueryListListener', has_dart_wrapper=False),
-    'OptionsObject': IDLTypeInfo('OptionsObject', has_dart_wrapper=False),
+    'IDBAny': IDLTypeInfo('IDBAny', dart_type='Dynamic', custom_to_native=True),
+    'IDBKey': IDLTypeInfo('IDBKey', dart_type='Dynamic', custom_to_native=True),
+    'MediaQueryListListener': IDLTypeInfo('MediaQueryListListener', custom_to_native=True),
+    'OptionsObject': IDLTypeInfo('OptionsObject', custom_to_native=True),
     'StyleSheet': IDLTypeInfo('StyleSheet', conversion_includes=['CSSStyleSheet']),
     'SVGElement': IDLTypeInfo('SVGElement', custom_to_dart=True),
 
     'SVGAngle': SVGTearOffIDLTypeInfo('SVGAngle'),
     'SVGLength': SVGTearOffIDLTypeInfo('SVGLength'),
     'SVGLengthList': SVGTearOffIDLTypeInfo('SVGLengthList', ref_counted=False),
     'SVGMatrix': SVGTearOffIDLTypeInfo('SVGMatrix'),
     'SVGNumber': SVGTearOffIDLTypeInfo('SVGNumber', native_type='SVGPropertyTearOff<float>'),
     'SVGNumberList': SVGTearOffIDLTypeInfo('SVGNumberList', ref_counted=False),
     'SVGPathSegList': SVGTearOffIDLTypeInfo('SVGPathSegList', native_type='SVGPathSegListPropertyTearOff', ref_counted=False),
@@ skipping 13 matching lines @@
     '"SVGAnimatedListPropertyTearOff.h"',
     '"SVGTransformListPropertyTearOff.h"',
     '"SVGPathSegListPropertyTearOff.h"',
 ]
 
 def GetIDLTypeInfo(idl_type_name):
   match = re.match(r'sequence<(\w+)>$', idl_type_name)
   if match:
     return SequenceIDLTypeInfo(idl_type_name, GetIDLTypeInfo(match.group(1)))
   return _idl_type_registry.get(idl_type_name, IDLTypeInfo(idl_type_name))