Support sequence<T> as native bindings arguments.

lib/html/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 copy
 import re
@@ skipping 553 matching lines @@
       type = 'RefPtr<%s>' % self.native_type()
       argument_expression_template = '%s.get()'
     else:
       type = '%s*' % self.native_type()
       if isinstance(self, SVGTearOffIDLTypeInfo) and not interface_name.endswith('List'):
         argument_expression_template = '%s->propertyReference()'
       else:
         argument_expression_template = '%s'
     return argument_expression_template, type, cls, 'toNative'
 
+  def pass_native_by_ref(self): return False
+
   def custom_to_native(self):
     return self._data.custom_to_native
 
   def parameter_type(self):
     return '%s*' % self.native_type()
 
   def webcore_includes(self):
     WTF_INCLUDES = [
         'ArrayBuffer',
         'ArrayBufferView',
@@ skipping 42 matching lines @@
 
 
 class SequenceIDLTypeInfo(IDLTypeInfo):
   def __init__(self, idl_type, data, item_info):
     super(SequenceIDLTypeInfo, self).__init__(idl_type, data)
     self._item_info = item_info
 
   def dart_type(self):
     return 'List<%s>' % self._item_info.dart_type()
 
+  def to_native_info(self, idl_node, interface_name):
+    item_info = self._item_info
+    item_native_type = item_info.native_type()
+    # Ugly hack. Usually IDLs floats are treated as C++ doubles, however
+    # sequence<float> should map to Vector<float>
+    if item_native_type == 'double' and item_info.idl_type() == 'float':
+      item_native_type = 'float'
+
+    return '%s', 'Vector<%s>' % item_native_type, 'DartUtilities', 'toNativeVector<%s>' % item_native_type
+
+  def pass_native_by_ref(self): return True
+
   def to_dart_conversion(self, value, interface_name=None, attributes=None):
     return 'DartDOMWrapper::vectorToDart<Dart%s>(%s)' % (self._item_info.native_type(), value)
 
   def conversion_includes(self):
     return self._item_info.conversion_includes()
 
 
 class DOMStringArrayTypeInfo(SequenceIDLTypeInfo):
   def __init__(self, data, item_info):
     super(DOMStringArrayTypeInfo, self).__init__('DOMString[]', data, item_info)
 
   def to_native_info(self, idl_node, interface_name):
     return '%s', 'RefPtr<DOMStringList>', 'DartDOMStringList', 'toNative'
 
+  def pass_native_by_ref(self): return False
+
 
 class PrimitiveIDLTypeInfo(IDLTypeInfo):
   def __init__(self, idl_type, data):
     super(PrimitiveIDLTypeInfo, self).__init__(idl_type, data)
 
   def to_native_info(self, idl_node, interface_name):
     type = self.native_type()
     if type == 'SerializedScriptValue':
       type = 'RefPtr<%s>' % type
     if type == 'String':
@@ skipping 201 matching lines @@
     if match:
       if type_name == 'DOMString[]':
         return DOMStringArrayTypeInfo(TypeData('Sequence'), self.TypeInfo('DOMString'))
       item_info = self.TypeInfo(match.group(1) or match.group(2))
       return SequenceIDLTypeInfo(type_name, TypeData('Sequence'), item_info)
     if not type_name in _idl_type_registry:
       return InterfaceIDLTypeInfo(type_name, TypeData('Interface'))
     type_data = _idl_type_registry.get(type_name)
     class_name = '%sIDLTypeInfo' % type_data.clazz
     return globals()[class_name](type_name, type_data)