Revert "Revert "Rework Element constructors""

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
 
 _pure_interfaces = set([
+    # TODO(sra): DOMStringMap should be a class implementing Map<String,String>.
     'DOMStringMap',
     'ElementTimeControl',
     'ElementTraversal',
     'MediaQueryListListener',
     'NodeSelector',
     'SVGExternalResourcesRequired',
     'SVGFilterPrimitiveStandardAttributes',
     'SVGFitToViewBox',
     'SVGLangSpace',
     'SVGLocatable',
@@ skipping 205 matching lines @@
 
   # Zip together arguments from each overload by position, then convert
   # to a dart argument.
   args = map(lambda *args: _DartArg(args, interface),
              *(op.arguments for op in operations))
 
   info = OperationInfo()
   info.overloads = operations
   info.declared_name = operations[0].id
   info.name = operations[0].ext_attrs.get('DartName', info.declared_name)
+  info.constructor_name = None
   info.js_name = info.declared_name
   info.type_name = DartType(operations[0].type.id)   # TODO: widen.
   info.param_infos = args
   return info
 
 
 def AnalyzeConstructor(interface):
   """Returns an OperationInfo object for the constructor.
 
   Returns None if the interface has no Constructor.
@@ skipping 18 matching lines @@
       args = GetArgs(func_value)
       idl_args = func_value.arguments
     else:
       return None
 
   info = OperationInfo()
   info.overloads = None
   info.idl_args = idl_args
   info.declared_name = name
   info.name = name
+  info.constructor_name = None
   info.js_name = name
   info.type_name = interface.id
   info.param_infos = args
   return info
 
 
 def RecognizeCallback(interface):
   """Returns the info for the callback method if the interface smells like a
   callback.
   """
@@ skipping 59 matching lines @@
   else:
     return dart_type
 
 
 class OperationInfo(object):
   """Holder for various derived information from a set of overloaded operations.
 
   Attributes:
     overloads: A list of IDL operation overloads with the same name.
     name: A string, the simple name of the operation.
+    constructor_name: A string, the name of the constructor iff the constructor
+       is named, e.g. 'fromList' in  Int8Array.fromList(list).
     type_name: A string, the name of the return type of the operation.
     param_infos: A list of ParamInfo.
   """
 
   def ParametersInterfaceDeclaration(self):
     """Returns a formatted string declaring the parameters for the interface."""
     return self._FormatParams(
         self.param_infos, True,
         lambda param: TypeOrNothing(param.dart_type, param.type_id))
 
@@ skipping 51 matching lines @@
     argtexts = map(FormatParam, required)
     if optional:
       argtexts.append('[' + ', '.join(map(FormatParam, optional)) + ']')
     return ', '.join(argtexts)
 
   def IsStatic(self):
     is_static = self.overloads[0].is_static
     assert any([is_static == o.is_static for o in self.overloads])
     return is_static
 
+  def ConstructorFullName(self):
+    if self.constructor_name:
+      return self.type_name + '.' + self.constructor_name
+    else:
+      return self.type_name
+
 
 def AttributeOutputOrder(a, b):
   """Canonical output ordering for attributes."""
     # Getters before setters:
   if a.id < b.id: return -1
   if a.id > b.id: return 1
   if a.is_fc_setter < b.is_fc_setter: return -1
   if a.is_fc_setter > b.is_fc_setter: return 1
   return 0
 
@@ skipping 321 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))