/*
* 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')");
}
}