Support type literals as compile-time constants.

sdk/lib/_internal/compiler/implementation/ssa/builder.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.
 
 part of ssa;
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
@@ skipping 3337 matching lines @@
   }
 
   HConstant addConstantString(Node node, String string) {
     DartString dartString = new DartString.literal(string);
     Constant constant = constantSystem.createString(dartString, node);
     return graph.addConstant(constant);
   }
 
   visitTypeReferenceSend(Send node) {
     Element element = elements[node];
-    HInstruction name;
-    Element helper =
-        compiler.findHelper(const SourceString('createRuntimeType'));
-    if (element.isClass()) {
-      String string = rti.generateRuntimeTypeString(element, 0);
-      name = addConstantString(node.selector, string);
-    } else if (element.isTypedef()) {
-      // TODO(karlklose): implement support for type variables in typedefs.
-      name = addConstantString(node.selector, rti.getName(element));
+    if (element.isClass() || element.isTypedef()) {

[ngeoffray, 2012/11/19 16:54:09]

element.impliesType

[karlklose, 2012/11/20 14:04:38]

Type variables imply types. The case for these is just below.

+      // TODO(karlklose): add type representation
+      ConstantHandler handler = compiler.constantHandler;
+      Node constantNode = node.isCall ? node : node;

[ngeoffray, 2012/11/19 16:54:09]

What is this line above?

[karlklose, 2012/11/20 14:04:38]

Debug code, removed.

+      Constant constant = handler.compileNodeWithDefinitions(constantNode,
+                                                             elements);
+      stack.add(graph.addConstant(constant));
     } else if (element.isTypeVariable()) {
       // TODO(6248): implement support for type variables.
       compiler.unimplemented('first class type for type variable', node: node);
     } else {
-      internalError('unexpected element $element', node: node);
+      internalError('unexpected element kind $element', node: node);
     }
-    pushInvokeHelper1(helper, name);
     if (node.isCall) {
       // This send is of the form 'e(...)', where e is resolved to a type
       // reference. We create a regular closure call on the result of the type
       // reference instead of creating a NoSuchMethodError to avoid pulling it
       // in if it is not used (e.g., in a try/catch).
       HInstruction target = pop();
       Selector selector = elements.getSelector(node);
       List<HInstruction> inputs = <HInstruction>[target];
       addDynamicSendArgumentsToList(node, inputs);
       push(new HInvokeClosure(selector, inputs));
@@ skipping 1552 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }