| /* |
| * 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; |
| |
| import javaemul.internal.annotations.UncheckedCast; |
| |
| import jsinterop.annotations.JsPackage; |
| import jsinterop.annotations.JsType; |
| |
| /** |
| * Tests that unchecked casts allow other optimizations to happen. |
| */ |
| @DoNotRunWith(Platform.Devel) |
| public class UncheckedCastOptimizationTest extends OptimizationTestBase { |
| |
| @JsType(isNative = true, namespace = JsPackage.GLOBAL, name = "Array") |
| private static class JsArray { |
| public int length; |
| } |
| |
| @JsType(isNative = true) |
| private interface NativeObject { |
| } |
| |
| @UncheckedCast |
| public static <T> T uncheckedCast(Object o) { |
| return (T) o; |
| } |
| public static int unckeckedCastOperation() { |
| JsArray array = uncheckedCast(new NativeObject[] {null, null}); |
| return array.length; |
| } |
| |
| private static native String getGeneratedUncheckedCastFunctionDefinition() /*-{ |
| return function() { |
| @com.google.gwt.dev.jjs.optimized.UncheckedCastOptimizationTest::unckeckedCastOperation()(); |
| }.toString(); |
| }-*/; |
| |
| public void testUncheckedCastAllowsOptimizaionsC() throws Exception { |
| String functionDef = getGeneratedUncheckedCastFunctionDefinition(); |
| assertFunctionMatches(functionDef, "var<obf>;<obf>=[null,null]"); |
| } |
| } |