dart2js: add compiler builtins to the core-runtime.

pkg/compiler/lib/src/js_emitter/new_emitter/emitter.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 dart2js.new_js_emitter.emitter;
 
+import 'package:_internal/compiler/js_lib/shared/embedded_names.dart' show
+JsBuiltin;

[Johnni Winther, 2015/04/14 07:41:30]

Bad indentation.

[floitsch, 2015/04/15 14:34:35]

Done.

+
 import '../program_builder.dart' show ProgramBuilder;
 import '../model.dart';
 import 'model_emitter.dart';
 import '../../common.dart';
 import '../../elements/elements.dart' show FieldElement;
 import '../../js/js.dart' as js;
 
 import '../../js_backend/js_backend.dart' show
-    JavaScriptBackend,
-    Namer;
+JavaScriptBackend,
+Namer;
 
 import '../js_emitter.dart' show
-    NativeEmitter;
+NativeEmitter;
 
 import '../js_emitter.dart' as emitterTask show
-    Emitter;
+Emitter;
+
+import '../../util/util.dart' show
+NO_LOCATION_SPANNABLE;

[Johnni Winther, 2015/04/14 07:41:30]

Bad indentation.

[floitsch, 2015/04/15 14:34:35]

Done.

 
 class Emitter implements emitterTask.Emitter {
   final Compiler _compiler;
   final Namer namer;
   final ModelEmitter _emitter;
 
+  JavaScriptBackend get _backend => _compiler.backend;
+
   Emitter(Compiler compiler, Namer namer, NativeEmitter nativeEmitter)
-      : this._compiler = compiler,
-        this.namer = namer,
-        _emitter = new ModelEmitter(compiler, namer, nativeEmitter);
+  : this._compiler = compiler,
+  this.namer = namer,

[Johnni Winther, 2015/04/14 07:41:30]

Bad indentation.

[floitsch, 2015/04/15 14:34:35]

Done.

+  _emitter = new ModelEmitter(compiler, namer, nativeEmitter);
 
   @override
   int emitProgram(ProgramBuilder programBuilder) {
     Program program = programBuilder.buildProgram();
     return _emitter.emitProgram(program);
   }
 
   // TODO(floitsch): copied from OldEmitter. Adjust or share.
   @override
   bool isConstantInlinedOrAlreadyEmitted(ConstantValue constant) {
@@ skipping 16 matching lines @@
     return _emitter.generateEmbeddedGlobalAccess(global);
   }
 
   @override
   // TODO(herhut): Use a single shared function.
   js.Expression generateFunctionThatReturnsNull() {
     return js.js('function() {}');
   }
 
   js.PropertyAccess _globalPropertyAccess(Element element) {
-     String name = namer.globalPropertyName(element);
-     js.PropertyAccess pa = new js.PropertyAccess.field(
-         new js.VariableUse(namer.globalObjectFor(element)),
-         name);
-     return pa;
-   }
+    String name = namer.globalPropertyName(element);
+    js.PropertyAccess pa = new js.PropertyAccess.field(
+        new js.VariableUse(namer.globalObjectFor(element)),
+        name);
+    return pa;
+  }
 
   @override
   js.Expression isolateLazyInitializerAccess(FieldElement element) {
     return js.js('#.#', [namer.globalObjectFor(element),
-                         namer.lazyInitializerName(element)]);
+    namer.lazyInitializerName(element)]);

[Johnni Winther, 2015/04/14 07:41:30]

Bad indentation.

[floitsch, 2015/04/15 14:34:36]

Done.

   }
 
   @override
   js.Expression isolateStaticClosureAccess(FunctionElement element) {
     return _emitter.generateStaticClosureAccess(element);
   }
 
   @override
   js.PropertyAccess staticFieldAccess(FieldElement element) {
     return _globalPropertyAccess(element);
   }
 
   @override
   js.PropertyAccess staticFunctionAccess(FunctionElement element) {
     return _globalPropertyAccess(element);
   }
 
   @override
   js.PropertyAccess constructorAccess(ClassElement element) {
     return _globalPropertyAccess(element);
   }
 
   @override
   js.PropertyAccess prototypeAccess(ClassElement element,
                                     bool hasBeenInstantiated) {
     js.Expression constructor =
-        hasBeenInstantiated ? constructorAccess(element) : typeAccess(element);
+    hasBeenInstantiated ? constructorAccess(element) : typeAccess(element);

[Johnni Winther, 2015/04/14 07:41:30]

Bad indentation.

[floitsch, 2015/04/15 14:34:35]

Done.

     return js.js('#.prototype', constructor);
   }
 
   @override
   js.Expression interceptorClassAccess(ClassElement element) {
     // Some interceptors are eagerly constructed. However, native interceptors
     // aren't.
     return js.js('#.ensureResolved()', _globalPropertyAccess(element));
   }
 
   @override
   js.Expression typeAccess(Element element) {
     // TODO(floitsch): minify 'ensureResolved'.
     // TODO(floitsch): don't emit `ensureResolved` for eager classes.
     return js.js('#.ensureResolved()', _globalPropertyAccess(element));
   }
 
   @override
-  void invalidateCaches() {}
+  js.Template templateForBuiltin(JsBuiltin builtin) {
+    String typeNameProperty = ModelEmitter.typeNameProperty;
+
+    switch (builtin) {
+      case JsBuiltin.dartObjectConstructor:
+        return js.js.expressionTemplateYielding(
+            typeAccess(_compiler.objectClass));
+
+      case JsBuiltin.isFunctionType:
+        return _backend.rti.representationGenerator.templateForIsFunctionType;
+
+      case JsBuiltin.isFunctionTypeLiteral:
+        String functionClassName =
+            _backend.namer.runtimeTypeName(compiler.functionClass);
+
+        return jsAst.js.expressionTemplateFor(
+            '#.$typeNameProperty === "$functionClassName"');
+
+      case JsBuiltin.typeName:
+        return jsAst.js.expressionTemplateFor("#.$typeNameProperty");
+
+      case JsBuiltin.rawRuntimeType:
+        return jsAst.js.expressionTemplateFor("#.constructor");
+
+      case JsBuiltin.createFunctionType:
+        return _backend.rti.representationGenerator
+            .templateForCreateFunctionType;
+
+      default:
+        _compiler.internalError(NO_LOCATION_SPANNABLE,
+                                "Unhandled Builtin: $builtin");
+        return null;
+    }
+  }
+
+  @override
+  void invalidateCaches() {
+  }
 }