| /* |
| * Copyright 2014 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.impl; |
| |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.dev.jjs.ast.JMethod; |
| import com.google.gwt.dev.jjs.ast.JProgram; |
| |
| /** |
| * Tests for the JsniRestrictionChecker. |
| */ |
| public class JsniRestrictionCheckerTest extends OptimizerTestBase { |
| |
| public void testInvocationInDevirtualizedTypesSucceeds() throws Exception { |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " interface IBar {", |
| " void bar();", |
| " }", |
| " static final class Foo ", |
| " extends com.google.gwt.core.client.JavaScriptObject implements IBar {", |
| " protected Foo() { };", |
| " void foo() { };", |
| " public void bar() { };", |
| " static void staticFoo() { };", |
| " }", |
| " native void jsniMethod(Object o) /*-{", |
| " @java.lang.Double::new(D)();", |
| " @java.lang.Boolean::new(Z)();", |
| " new Object().@java.lang.Number::doubleValue()();", |
| " new Object().@java.lang.Double::doubleValue()();", |
| " new Object().@Buggy.Foo::foo()();", |
| " new Object().@Buggy.IBar::bar()();", |
| " @Buggy.Foo::staticFoo()();", |
| " }-*/;", |
| "}"); |
| assertCompileSucceeds("new Buggy().jsniMethod(null);"); |
| } |
| |
| public void testReferenceToDevirtualizedInstanceMethodFails() throws Exception { |
| addSnippetImport("com.google.gwt.core.client.JavaScriptObject"); |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " native void jsniMethod(Object o) /*-{", |
| " var a = new Object().@java.lang.Double::doubleValue();", |
| " }-*/;", |
| "}"); |
| |
| assertCompileFails("new Buggy().jsniMethod(null);", |
| "Line 6: Method 'double Double.doubleValue()' is implemented by devirtualized " |
| + "type 'Double' JSO and can only be used in calls within a JSNI method body."); |
| } |
| |
| public void testReferenceToTrampolineWarns() throws Exception { |
| addSnippetImport("com.google.gwt.core.client.JavaScriptObject"); |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " native void jsniMethod(Object o) /*-{", |
| " var a = new Object().@java.lang.Number::doubleValue();", |
| " var a = new Object().@java.lang.CharSequence::charAt(I);", |
| " var a = \"Hello\".@java.lang.Object::toString();", |
| " }-*/;", |
| "}"); |
| |
| assertCompileSucceeds("new Buggy().jsniMethod(null);", |
| "Line 6: Unsafe reference to method 'double Number.doubleValue()'. " |
| + "Instance methods from 'Number' should not be called on Boolean, Double, String, " |
| + "Array or JSO instances from within a JSNI method body.", |
| "Line 7: Unsafe reference to method 'char CharSequence.charAt(int)'. Instance methods from" |
| + " 'CharSequence' should not be called on Boolean, Double, String, Array or JSO" |
| + " instances from within a JSNI method body.", |
| "Line 8: Unsafe reference to method 'String Object.toString()'. Instance methods from " |
| + "'Object' should not be called on Boolean, Double, String, Array or JSO instances " |
| + "from within a JSNI method body."); |
| } |
| |
| public void testStaticJsoDispatchSucceeds() throws Exception { |
| addSnippetImport("com.google.gwt.core.client.JavaScriptObject"); |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " static final class Foo extends com.google.gwt.core.client.JavaScriptObject {", |
| " protected Foo() { };", |
| " static void foo() { };", |
| " }", |
| " native void jsniMeth(Object o) /*-{", |
| " @Buggy.Foo::foo()();", |
| " }-*/;", |
| "}"); |
| |
| assertCompileSucceeds("new Buggy().jsniMeth(null);"); |
| } |
| |
| public void testJsoInterfaceDispatchFails() throws Exception { |
| addSnippetImport("com.google.gwt.core.client.JavaScriptObject"); |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " interface IFoo {", |
| " void foo();", |
| " }", |
| " static final class Foo extends JavaScriptObject implements IFoo {", |
| " protected Foo() { };", |
| " public void foo() { };", |
| " }", |
| " native void jsniMethod(Object o) /*-{", |
| " var a = new Object().@Buggy.IFoo::foo();", |
| " }-*/;", |
| "}"); |
| |
| assertCompileFails("new Buggy().jsniMethod(null);", |
| "Line 13: Method 'void EntryPoint.Buggy.IFoo.foo()' is implemented by a JSO and can only " |
| + "be used in calls within a JSNI method body."); |
| } |
| |
| public void testNonstaticJsoDispatchFails() throws Exception { |
| addSnippetImport("com.google.gwt.core.client.JavaScriptObject"); |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " native void jsniMethod(Object o) /*-{", |
| " var a = new Object().@com.google.gwt.core.client.JavaScriptObject::toString();", |
| " }-*/;", |
| "}"); |
| |
| assertCompileFails("new Buggy().jsniMethod(null);", |
| "Line 6: Method 'String JavaScriptObject.toString()' is implemented by a JSO and can " |
| + "only be used in calls within a JSNI method body."); |
| } |
| |
| public void testNonstaticJsoSubclassDispatchFails() throws Exception { |
| addSnippetImport("com.google.gwt.core.client.JavaScriptObject"); |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " static final class Foo extends com.google.gwt.core.client.JavaScriptObject {", |
| " protected Foo() { };", |
| " void foo() { };", |
| " }", |
| " native void jsniMethod(Object o) /*-{", |
| " var a = new Object().@Buggy.Foo::foo();", |
| " }-*/;", |
| "}"); |
| |
| assertCompileFails("new Buggy().jsniMethod(null);", |
| "Line 10: Method 'void EntryPoint.Buggy.Foo.foo()' is implemented by a JSO and can " |
| + "only be used in calls within a JSNI method body."); |
| } |
| |
| public void testStringInstanceMethodCallFail() throws Exception { |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " static String foo;", |
| " native void jsniMethod(Object o) /*-{", |
| " var a = \"Hello\".@java.lang.String::length();", |
| " }-*/;", |
| "}"); |
| |
| assertCompileFails("new Buggy().jsniMethod(null);", |
| "Line 6: Method 'int String.length()' is implemented by devirtualized type 'String' " |
| + "JSO and can only be used in calls within a JSNI method body."); |
| } |
| |
| public void testStringStaticMethodCallSucceeds() throws Exception { |
| addSnippetClassDecl( |
| "static class Buggy {", |
| " static String foo;", |
| " native void jsniMethod(Object o) /*-{", |
| " var a = @java.lang.String::valueOf(Z);", |
| " }-*/;", |
| "}"); |
| |
| assertCompileSucceeds("new Buggy().jsniMethod(null);"); |
| } |
| |
| @Override |
| protected boolean doOptimizeMethod(TreeLogger logger, JProgram program, JMethod method) |
| throws UnableToCompleteException { |
| JsniRestrictionChecker.exec(logger, program); |
| return false; |
| } |
| } |