Introduce ConstructorEntity

pkg/compiler/lib/src/universe/use.dart

 // 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 library defines individual world impacts.
 ///
 /// We call these building blocks `uses`. Each `use` is a single impact of the
 /// world. Some example uses are:
 ///
 ///  * an invocation of a top level function
 ///  * a call to the `foo()` method on an unknown class.
 ///  * an instantiation of class T
 ///
 /// The different compiler stages combine these uses into `WorldImpact` objects,
 /// which are later used to construct a closed-world understanding of the
 /// program.
 library dart2js.universe.use;
 
 import '../closure.dart' show BoxFieldElement;
 import '../common.dart';
 import '../elements/types.dart';
 import '../elements/elements.dart'
     show
-        ConstructorElement,
         ConstructorBodyElement,
         Element,
         Entity,
         LocalFunctionElement;
 import '../elements/entities.dart';
 import '../util/util.dart' show Hashing;
 import '../world.dart' show World;
 import 'call_structure.dart' show CallStructure;
 import 'selector.dart' show Selector;
 import 'world_builder.dart' show ReceiverConstraint;
@@ skipping 162 matching lines @@
   /// Closurization of a super method [element].
   factory StaticUse.superTearOff(FunctionEntity element) {
     assert(invariant(element, element.isInstanceMember && element.isFunction,
         message: "Super invoke element $element must be an instance method."));
     return new StaticUse.internal(element, StaticUseKind.SUPER_TEAR_OFF);
   }
 
   /// Invocation of a constructor [element] through a this or super
   /// constructor call with the given [callStructure].
   factory StaticUse.superConstructorInvoke(
-      ConstructorElement element, CallStructure callStructure) {
+      ConstructorEntity element, CallStructure callStructure) {
     // TODO(johnniwinther): Use the [callStructure].
     assert(invariant(element, element.isGenerativeConstructor,
         message: "Constructor invoke element $element must be a "
             "generative constructor."));
     return new StaticUse.internal(element, StaticUseKind.GENERAL);
   }
 
   /// Invocation of a constructor (body) [element] through a this or super
   /// constructor call with the given [callStructure].
   factory StaticUse.constructorBodyInvoke(
@@ skipping 26 matching lines @@
   factory StaticUse.directSet(FieldEntity element) {
     assert(invariant(element, element.isInstanceMember,
         message: "Direct set element $element must be an instance member."));
     assert(invariant(element, element.isField,
         message: "Direct set element $element must be a field."));
     return new StaticUse.internal(element, StaticUseKind.GENERAL);
   }
 
   /// Constructor invocation of [element] with the given [callStructure].
   factory StaticUse.constructorInvoke(
-      FunctionEntity element, CallStructure callStructure) {
+      ConstructorEntity element, CallStructure callStructure) {
     assert(invariant(element, element.isConstructor,
         message: "Constructor invocation element $element "
             "must be a constructor."));
     // TODO(johnniwinther): Use the [callStructure].
     return new StaticUse.internal(element, StaticUseKind.GENERAL);
   }
 
   /// Constructor invocation of [element] with the given [callStructure] on
   /// [type].
   factory StaticUse.typedConstructorInvoke(
-      FunctionEntity element, CallStructure callStructure, DartType type) {
+      ConstructorEntity element, CallStructure callStructure, DartType type) {
     assert(invariant(element, type != null,
         message: "No type provided for constructor invocation."));
     assert(invariant(element, element.isConstructor,
         message: "Typed constructor invocation element $element "
             "must be a constructor."));
     // TODO(johnniwinther): Use the [callStructure].
     return new StaticUse.internal(
         element, StaticUseKind.CONSTRUCTOR_INVOKE, type);
   }
 
   /// Constant constructor invocation of [element] with the given
   /// [callStructure] on [type].
   factory StaticUse.constConstructorInvoke(
-      FunctionEntity element, CallStructure callStructure, DartType type) {
+      ConstructorEntity element, CallStructure callStructure, DartType type) {
     assert(invariant(element, type != null,
         message: "No type provided for constructor invocation."));
     assert(invariant(element, element.isConstructor,
         message: "Const constructor invocation element $element "
             "must be a constructor."));
     // TODO(johnniwinther): Use the [callStructure].
     return new StaticUse.internal(
         element, StaticUseKind.CONST_CONSTRUCTOR_INVOKE, type);
   }
 
   /// Constructor redirection to [element] on [type].
   factory StaticUse.constructorRedirect(
-      FunctionEntity element, InterfaceType type) {
+      ConstructorEntity element, InterfaceType type) {
     assert(invariant(element, type != null,
         message: "No type provided for constructor redirection."));
     assert(invariant(element, element.isConstructor,
         message: "Constructor redirection element $element "
             "must be a constructor."));
     return new StaticUse.internal(element, StaticUseKind.REDIRECTION, type);
   }
 
   /// Initialization of an instance field [element].
   factory StaticUse.fieldInit(FieldEntity element) {
@@ skipping 111 matching lines @@
   }
 
   bool operator ==(other) {
     if (identical(this, other)) return true;
     if (other is! TypeUse) return false;
     return type == other.type && kind == other.kind;
   }
 
   String toString() => 'TypeUse($type,$kind)';
 }