Handle const constructor invocation in kernel_impact.

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
@@ skipping 53 matching lines @@
 }
 
 enum StaticUseKind {
   GENERAL,
   STATIC_TEAR_OFF,
   SUPER_TEAR_OFF,
   SUPER_FIELD_SET,
   FIELD_GET,
   FIELD_SET,
   CLOSURE,
+  CONSTRUCTOR_INVOKE,
+  CONST_CONSTRUCTOR_INVOKE,
 }
 
 /// Statically known use of an [Element].
 // TODO(johnniwinther): Create backend-specific implementations with better
 // invariants.
 class StaticUse {
   final Element element;
   final StaticUseKind kind;
   final int hashCode;
+  final DartType type;
 
-  StaticUse.internal(Element element, StaticUseKind kind)
+  StaticUse.internal(Element element, StaticUseKind kind,
+      [DartType type = null])
       : this.element = element,
         this.kind = kind,
-        this.hashCode = Hashing.objectHash(element, Hashing.objectHash(kind)) {
+        this.type = type,
+        this.hashCode = Hashing.objectsHash(element, kind, type) {
     assert(invariant(element, element.isDeclaration,
         message: "Static use element $element must be "
             "the declaration element."));
   }
 
   /// Invocation of a static or top-level [element] with the given
   /// [callStructure].
   factory StaticUse.staticInvoke(
       MethodElement element, CallStructure callStructure) {
     // TODO(johnniwinther): Use the [callStructure].
@@ skipping 104 matching lines @@
     return new StaticUse.internal(element, StaticUseKind.GENERAL);
   }
 
   /// Constructor invocation of [element] with the given [callStructure].
   factory StaticUse.constructorInvoke(
       ConstructorElement element, CallStructure callStructure) {
     // 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(
+      ConstructorElement element, CallStructure callStructure, DartType type) {
+    assert(invariant(element, type != null,
+        message: "No type provided for constructor invocation."));
+    // 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(
+      ConstructorElement element, CallStructure callStructure, DartType type) {
+    assert(invariant(element, type != null,
+        message: "No type provided for constructor invocation."));
+    // TODO(johnniwinther): Use the [callStructure].
+    return new StaticUse.internal(
+        element, StaticUseKind.CONST_CONSTRUCTOR_INVOKE, type);
+  }
+
   /// Constructor redirection to [element].
   factory StaticUse.constructorRedirect(ConstructorElement element) {
     return new StaticUse.internal(element, StaticUseKind.GENERAL);
   }
 
   /// Initialization of an instance field [element].
   factory StaticUse.fieldInit(FieldElement element) {
     assert(invariant(element, element.isInstanceMember,
         message: "Field init element $element must be an instance field."));
     return new StaticUse.internal(element, StaticUseKind.GENERAL);
@@ skipping 24 matching lines @@
 
   /// Unknown use of [element].
   @deprecated
   factory StaticUse.foreignUse(Element element) {
     return new StaticUse.internal(element, StaticUseKind.GENERAL);
   }
 
   bool operator ==(other) {
     if (identical(this, other)) return true;
     if (other is! StaticUse) return false;
-    return element == other.element && kind == other.kind;
+    return element == other.element && kind == other.kind && type == other.type;
   }
 
-  String toString() => 'StaticUse($element,$kind)';
+  String toString() => 'StaticUse($element,$kind,$type)';
 }
 
 enum TypeUseKind {
   IS_CHECK,
   AS_CAST,
   CHECKED_MODE_CHECK,
   CATCH_TYPE,
   TYPE_LITERAL,
   INSTANTIATION,
 }
@@ skipping 40 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)';
 }