Compute NativeBehavior for native methods and fields.

pkg/compiler/lib/src/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.
 
 import 'dart:collection';
 
 import 'package:js_runtime/shared/embedded_names.dart';
 
 import '../closure.dart';
 import '../common.dart';
@@ skipping 3046 matching lines @@
     if (!node.arguments.isEmpty) {
       reporter.internalError(node.argumentsNode, 'Too many arguments.');
     }
     push(new HForeignCode(js.js.parseForeignJS(backend.namer.staticStateHolder),
         backend.dynamicType, <HInstruction>[],
         nativeBehavior: native.NativeBehavior.DEPENDS_OTHER));
   }
 
   void handleForeignSend(ast.Send node, FunctionElement element) {
     String name = element.name;
-    if (name == 'JS') {
+    if (name == BackendHelpers.JS) {
       handleForeignJs(node);
     } else if (name == 'JS_CURRENT_ISOLATE_CONTEXT') {
       handleForeignJsCurrentIsolateContext(node);
     } else if (name == 'JS_CALL_IN_ISOLATE') {
       handleForeignJsCallInIsolate(node);
     } else if (name == 'DART_CLOSURE_TO_JS') {
       handleForeignDartClosureToJs(node, 'DART_CLOSURE_TO_JS');
     } else if (name == 'RAW_DART_FUNCTION_REF') {
       handleForeignRawFunctionRef(node, 'RAW_DART_FUNCTION_REF');
     } else if (name == 'JS_SET_STATIC_STATE') {
       handleForeignJsSetStaticState(node);
     } else if (name == 'JS_GET_STATIC_STATE') {
       handleForeignJsGetStaticState(node);
     } else if (name == 'JS_GET_NAME') {
       handleForeignJsGetName(node);
-    } else if (name == 'JS_EMBEDDED_GLOBAL') {
+    } else if (name == BackendHelpers.JS_EMBEDDED_GLOBAL) {
       handleForeignJsEmbeddedGlobal(node);
-    } else if (name == 'JS_BUILTIN') {
+    } else if (name == BackendHelpers.JS_BUILTIN) {
       handleForeignJsBuiltin(node);
     } else if (name == 'JS_GET_FLAG') {
       handleForeignJsGetFlag(node);
     } else if (name == 'JS_EFFECT') {
       stack.add(graph.addConstantNull(compiler));
-    } else if (name == 'JS_INTERCEPTOR_CONSTANT') {
+    } else if (name == BackendHelpers.JS_INTERCEPTOR_CONSTANT) {
       handleJsInterceptorConstant(node);
     } else if (name == 'JS_STRING_CONCAT') {
       handleJsStringConcat(node);
     } else {
       reporter.internalError(node, "Unknown foreign: ${element}");
     }
   }
 
   generateDeferredLoaderGet(ast.Send node, FunctionElement deferredLoader,
       SourceInformation sourceInformation) {
@@ skipping 3944 matching lines @@
     if (unaliased is TypedefType) throw 'unable to unalias $type';
     unaliased.accept(this, builder);
   }
 
   void visitDynamicType(DynamicType type, SsaBuilder builder) {
     JavaScriptBackend backend = builder.compiler.backend;
     ClassElement cls = backend.helpers.DynamicRuntimeType;
     builder.push(new HDynamicType(type, new TypeMask.exact(cls, closedWorld)));
   }
 }