Compute NewStructure in resolution.

pkg/compiler/lib/src/resolution/tree_elements.dart

 // Copyright (c) 2015, 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.
 
 library dart2js.resolution.tree_elements;
 
 import '../common.dart';
 import '../constants/expressions.dart';
 import '../dart_types.dart';
 import '../elements/elements.dart';
@@ skipping 11 matching lines @@
 
 abstract class TreeElements {
   AnalyzableElement get analyzedElement;
   Iterable<Node> get superUses;
 
   void forEachConstantNode(f(Node n, ConstantExpression c));
 
   Element operator[](Node node);
   Map<Node, DartType> get typesCache;
 
-  SendStructure getSendStructure(Send send);
+  /// Returns the [SendStructure] that describes the semantics of [node].
+  SendStructure getSendStructure(Send node);
+
+  /// Returns the [NewStructure] that describes the semantics of [node].
+  NewStructure getNewStructure(NewExpression node);
 
   // TODO(johnniwinther): Investigate whether [Node] could be a [Send].
   Selector getSelector(Node node);
   Selector getGetterSelectorInComplexSendSet(SendSet node);
   Selector getOperatorSelectorInComplexSendSet(SendSet node);
   DartType getType(Node node);
   TypeMask getTypeMask(Node node);
   TypeMask getGetterTypeMaskInComplexSendSet(SendSet node);
   TypeMask getOperatorTypeMaskInComplexSendSet(SendSet node);
   void setTypeMask(Node node, TypeMask mask);
@@ skipping 64 matching lines @@
   Map<Spannable, TypeMask> _typeMasks;
   Map<Node, DartType> _types;
   Map<Node, DartType> typesCache = <Node, DartType>{};
   Setlet<Node> _superUses;
   Map<Node, ConstantExpression> _constants;
   Map<VariableElement, List<Node>> _potentiallyMutated;
   Map<Node, Map<VariableElement, List<Node>>> _potentiallyMutatedIn;
   Map<VariableElement, List<Node>> _potentiallyMutatedInClosure;
   Map<Node, Map<VariableElement, List<Node>>> _accessedByClosureIn;
   Maplet<Send, SendStructure> _sendStructureMap;
+  Maplet<NewExpression, NewStructure> _newStructureMap;
   bool containsTryStatement = false;
 
   /// Map from nodes to the targets they define.
   Map<Node, JumpTarget> _definedTargets;
 
   /// Map from goto statements to their targets.
   Map<GotoStatement, JumpTarget> _usedTargets;
 
   /// Map from labels to their label definition.
   Map<Label, LabelDefinition> _definedLabels;
@@ skipping 19 matching lines @@
     // assert(invariant(node,
     //                  getTreeElement(node) == element ||
     //                  getTreeElement(node) == null,
     //                  message: '${getTreeElement(node)}; $element'));
 
     setTreeElement(node, element);
   }
 
   operator [](Node node) => getTreeElement(node);
 
-  SendStructure getSendStructure(Send send) {
+  SendStructure getSendStructure(Send node) {
     if (_sendStructureMap == null) return null;
-    return _sendStructureMap[send];
+    return _sendStructureMap[node];
   }
 
-  void setSendStructure(Send send, SendStructure sendStructure) {
+  void setSendStructure(Send node, SendStructure sendStructure) {
     if (_sendStructureMap == null) {
       _sendStructureMap = new Maplet<Send, SendStructure>();
     }
-    _sendStructureMap[send] = sendStructure;
+    _sendStructureMap[node] = sendStructure;
+  }
+
+  NewStructure getNewStructure(NewExpression node) {
+    if (_newStructureMap == null) return null;
+    return _newStructureMap[node];
+  }
+
+  void setNewStructure(NewExpression node, NewStructure newStructure) {
+    if (_newStructureMap == null) {
+      _newStructureMap = new Maplet<NewExpression, NewStructure>();
+    }
+    _newStructureMap[node] = newStructure;
   }
 
   void setType(Node node, DartType type) {
     if (_types == null) {
       _types = new Maplet<Node, DartType>();
     }
     _types[node] = type;
   }
 
   DartType getType(Node node) => _types != null ? _types[node] : null;
@@ skipping 273 matching lines @@
   }
 
   void setCurrentTypeMask(ForIn node, TypeMask mask) {
     _setTypeMask(node.inToken, mask);
   }
 
   TypeMask getCurrentTypeMask(ForIn node) {
     return _getTypeMask(node.inToken);
   }
 }