Support intercepted getters, setters and index operations.

pkg/compiler/lib/src/js_backend/codegen/codegen.dart

 // Copyright (c) 2014, 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 code_generator;
 
 import 'glue.dart';
 
 import '../../tree_ir/tree_ir_nodes.dart' as tree_ir;
 import '../../js/js.dart' as js;
@@ skipping 152 matching lines @@
   }
 
   js.Expression compileConstant(ParameterElement parameter) {
     return buildConstant(glue.getConstantForVariable(parameter).value);
   }
 
   js.Expression buildStaticInvoke(Selector selector,
                                   Element target,
                                   List<js.Expression> arguments) {
     registry.registerStaticInvocation(target.declaration);
-    js.Expression elementAccess = glue.staticFunctionAccess(target);
-    List<js.Expression> compiledArguments =
-        selector.makeArgumentsList(target.implementation,
-                                   arguments,
-                                   compileConstant);
-    return new js.Call(elementAccess, compiledArguments);
+    if (target == glue.getInterceptorMethod) {
+      // This generates a call to the specialized interceptor function, which
+      // does not have a specialized element yet, but is emitted as a stub from
+      // the emitter in [InterceptorStubGenerator].
+      // TODO(karlklose): Either change [InvokeStatic] to take an [Entity]
+      //   instead of an [Element] and model the getInterceptor functions as
+      //   [Entity]s or add a specialized Tree-IR node for interceptor calls.
+      registry.registerUseInterceptor();
+      js.VariableUse interceptorLibrary = glue.getInterceptorLibrary();
+      return js.propertyCall(interceptorLibrary, selector.name, arguments);
+    } else {
+      js.Expression elementAccess = glue.staticFunctionAccess(target);
+      List<js.Expression> compiledArguments =
+          selector.makeArgumentsList(target.implementation,
+                                     arguments,
+                                     compileConstant);
+      return new js.Call(elementAccess, compiledArguments);
+    }
   }
 
   @override
   js.Expression visitInvokeConstructor(tree_ir.InvokeConstructor node) {
     if (node.constant != null) return giveup(node);
     registry.registerInstantiatedClass(node.target.enclosingClass);
     return buildStaticInvoke(node.selector,
                              node.target,
                              visitArguments(node.arguments));
   }
 
   void registerMethodInvoke(tree_ir.InvokeMethod node) {
     Selector selector = node.selector;
-    // TODO(sigurdm): We should find a better place to register the call.
-    Selector call = new Selector.callClosureFrom(selector);
-    registry.registerDynamicInvocation(call);
-    registry.registerDynamicInvocation(selector);
+    if (selector is JsCallSelector) {
+      // Use the original (Dart) selector to identify potential targets in the
+      // semantic model.
+      selector = (selector as JsCallSelector).source;
+    }
+    if (selector.isGetter) {
+      registry.registerDynamicGetter(selector);
+    } else if (selector.isSetter) {
+      registry.registerDynamicSetter(selector);
+    } else {
+      assert(invariant(CURRENT_ELEMENT_SPANNABLE,
+          selector.isCall || selector.isOperator || selector.isIndex,
+          message: 'unexpected kind ${selector.kind}'));
+      // TODO(sigurdm): We should find a better place to register the call.
+      Selector call = new Selector.callClosureFrom(selector);
+      registry.registerDynamicInvocation(call);
+      registry.registerDynamicInvocation(selector);
+    }
   }
 
   @override
   js.Expression visitInvokeMethod(tree_ir.InvokeMethod node) {
     registerMethodInvoke(node);
     return js.propertyCall(visitExpression(node.receiver),
                            glue.invocationName(node.selector),
                            visitArguments(node.arguments));
   }
 
@@ skipping 246 matching lines @@
   void visitSetField(tree_ir.SetField node) {
     js.PropertyAccess field =
         new js.PropertyAccess.field(
             visitExpression(node.object),
             glue.instanceFieldPropertyName(node.field));
     js.Assignment asn = new js.Assignment(field, visitExpression(node.value));
     accumulator.add(new js.ExpressionStatement(asn));
     visitStatement(node.next);
   }
 }