| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.dev.jjs.optimized; |
| |
| import com.google.gwt.junit.DoNotRunWith; |
| import com.google.gwt.junit.Platform; |
| |
| /** |
| * Tests that the String class gets optimized properly. |
| */ |
| @DoNotRunWith(Platform.Devel) |
| public class StringOptimizationTest extends OptimizationTestBase { |
| |
| private static String createString() { |
| return new String(); |
| } |
| |
| private static native String getGeneratedFunctionDefintionThatTriggersStringClinit() /*-{ |
| return function() { |
| tmp = @StringOptimizationTest::createString()(); |
| }.toString(); |
| }-*/; |
| |
| public void testStringClinitIsRemoved() throws Exception { |
| String functionDef = getGeneratedFunctionDefintionThatTriggersStringClinit(); |
| assertFunctionMatches(functionDef, "tmp=''"); |
| } |
| |
| private static native String getGeneratedFunctionDefintionThatCallsStringFromCharCode() /*-{ |
| return function() { |
| tmp = @java.lang.String::valueOf(C)('c'); |
| }.toString(); |
| }-*/; |
| |
| /* |
| * Makes sure that static String functions are emitted without the $wnd qualifier because doing |
| * so causes runtime performance degradation. |
| */ |
| public void testNativeStringDoesNotUse$wnd() throws Exception { |
| String functionDef = getGeneratedFunctionDefintionThatCallsStringFromCharCode(); |
| assertFunctionMatches(functionDef, "tmp=String.fromCharCode('c')"); |
| } |
| } |