Revert "Revert "Rework Element constructors""

lib/dom/scripts/generator.py

Index: lib/dom/scripts/generator.py
diff --git a/lib/dom/scripts/generator.py b/lib/dom/scripts/generator.py
index f46c61c2272816963e42783bfc304ec81e7e8b9a..2813cdb202a9ceadb046886e99f44896de1024fa 100644
--- a/lib/dom/scripts/generator.py
+++ b/lib/dom/scripts/generator.py
@@ -9,6 +9,7 @@ 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',
@@ -234,6 +235,7 @@ def AnalyzeOperation(interface, operations):
   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
@@ -272,6 +274,7 @@ def AnalyzeConstructor(interface):
   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
@@ -351,6 +354,8 @@ class OperationInfo(object):
   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.
   """
@@ -422,6 +427,12 @@ class OperationInfo(object):
     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."""