| /* |
| * Copyright 2015 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.core.interop; |
| |
| import com.google.gwt.core.client.ScriptInjector; |
| import com.google.gwt.junit.client.GWTTestCase; |
| |
| import javaemul.internal.annotations.DoNotInline; |
| import jsinterop.annotations.JsMethod; |
| |
| /** |
| * Tests JsInterop performs correctly under tricky optimization scenarios. |
| */ |
| public class JsExportOptimizationTest extends GWTTestCase { |
| |
| @Override |
| public String getModuleName() { |
| return "com.google.gwt.core.Interop"; |
| } |
| |
| @Override |
| public void gwtSetUp() throws Exception { |
| setupGlobal(); |
| } |
| |
| // $global always points to scope of exports |
| private native void setupGlobal() /*-{ |
| $global = window.goog && window.goog.global || $wnd; |
| $wnd.$global = $global; |
| }-*/; |
| |
| public void testNoTypeTightenParams() { |
| // If we type-tighten, java side will see no calls and think that parameter could only be null. |
| // As a result, it will be optimized to null.nullMethod(). |
| ScriptInjector.fromString("$global.callBar($global.newA());").inject(); |
| assertTrue(MyClassExportsMethod.calledFromBar); |
| |
| // If we type-tighten, java side will only see a call to subclass and think that parameter could |
| // be optimized to that one. As a result, the method call will be inlined. |
| MyClassExportsMethod.callFoo(new MyClassExportsMethod.SubclassOfA()); |
| ScriptInjector.fromString("$global.callFoo($global.newA());").inject(); |
| assertTrue(MyClassExportsMethod.calledFromFoo); |
| } |
| |
| public void testNoSameParameterValueOptimization() { |
| assertEquals("L", X.m("L")); |
| assertEquals("M", callM("M")); |
| } |
| |
| static class X { |
| @JsMethod |
| @DoNotInline |
| public static String m(String s) { |
| return s; |
| } |
| } |
| |
| @JsMethod(namespace = "$global.woo.JsExportOptimizationTest.X", name = "m") |
| private static native String callM(String s); |
| } |