562 lines
18 KiB
Java
562 lines
18 KiB
Java
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/*
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* Copyright 2008 The Closure Compiler Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.javascript.jscomp;
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/**
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* Tests for {@link CrossModuleMethodMotion}.
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*
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* @author nicksantos@google.com (Nick Santos)
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*/
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public class CrossModuleMethodMotionTest extends CompilerTestCase {
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private static final String EXTERNS =
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"IFoo.prototype.bar; var mExtern; mExtern.bExtern; mExtern['cExtern'];";
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private boolean canMoveExterns = false;
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private final String STUB_DECLARATIONS =
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CrossModuleMethodMotion.STUB_DECLARATIONS;
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public CrossModuleMethodMotionTest() {
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super(EXTERNS);
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}
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@Override
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protected CompilerPass getProcessor(Compiler compiler) {
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return new CrossModuleMethodMotion(
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compiler, new CrossModuleMethodMotion.IdGenerator(), canMoveExterns);
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}
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@Override
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public void setUp() {
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super.enableLineNumberCheck(true);
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canMoveExterns = false;
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}
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public void testMovePrototypeMethod1() {
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testSame(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.bar = function() {};",
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// Module 2
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"(new Foo).bar()"));
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canMoveExterns = true;
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.bar = function() {};",
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// Module 2
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"(new Foo).bar()"),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.bar = JSCompiler_stubMethod(0);",
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// Module 2
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"Foo.prototype.bar = JSCompiler_unstubMethod(0, function() {});" +
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"(new Foo).bar()"
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});
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}
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public void testMovePrototypeMethod2() {
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype = { method: function() {} };",
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// Module 2
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"(new Foo).method()"),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype = { method: JSCompiler_stubMethod(0) };",
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// Module 2
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"Foo.prototype.method = " +
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" JSCompiler_unstubMethod(0, function() {});" +
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"(new Foo).method()"
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});
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}
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public void testMovePrototypeMethod3() {
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testSame(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype = { get method() {} };",
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// Module 2
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"(new Foo).method()"));
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}
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public void testMovePrototypeRecursiveMethod() {
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.baz = function() { this.baz(); };",
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// Module 2
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"(new Foo).baz()"),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.baz = JSCompiler_stubMethod(0);",
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// Module 2
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"Foo.prototype.baz = JSCompiler_unstubMethod(0, " +
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" function() { this.baz(); });" +
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"(new Foo).baz()"
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});
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}
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public void testCantMovePrototypeProp() {
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testSame(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.baz = goog.nullFunction;",
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// Module 2
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"(new Foo).baz()"));
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}
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public void testMoveMethodsInRightOrder() {
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.baz = function() { return 1; };" +
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"Foo.prototype.baz = function() { return 2; };",
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// Module 2
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"(new Foo).baz()"),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.baz = JSCompiler_stubMethod(1);" +
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"Foo.prototype.baz = JSCompiler_stubMethod(0);",
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// Module 2
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"Foo.prototype.baz = " +
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"JSCompiler_unstubMethod(1, function() { return 1; });" +
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"Foo.prototype.baz = " +
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"JSCompiler_unstubMethod(0, function() { return 2; });" +
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"(new Foo).baz()"
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});
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}
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public void testMoveMethodsInRightOrder2() {
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JSModule[] m = createModules(
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"function Foo() {}" +
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"Foo.prototype.baz = function() { return 1; };" +
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"function Goo() {}" +
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"Goo.prototype.baz = function() { return 2; };",
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// Module 2, depends on 1
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"",
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// Module 3, depends on 2
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"(new Foo).baz()",
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// Module 4, depends on 3
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"",
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// Module 5, depends on 3
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"(new Goo).baz()");
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m[1].addDependency(m[0]);
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m[2].addDependency(m[1]);
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m[3].addDependency(m[2]);
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m[4].addDependency(m[2]);
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test(m,
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.baz = JSCompiler_stubMethod(1);" +
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"function Goo() {}" +
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"Goo.prototype.baz = JSCompiler_stubMethod(0);",
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// Module 2
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"",
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// Module 3
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"Foo.prototype.baz = " +
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"JSCompiler_unstubMethod(1, function() { return 1; });" +
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"Goo.prototype.baz = " +
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"JSCompiler_unstubMethod(0, function() { return 2; });" +
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"(new Foo).baz()",
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// Module 4
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"",
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// Module 5
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"(new Goo).baz()"
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});
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}
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public void testMoveMethodsUsedInTwoModules() {
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testSame(createModuleStar(
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"function Foo() {}" +
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"Foo.prototype.baz = function() {};",
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// Module 2
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"(new Foo).baz()",
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// Module 3
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"(new Foo).baz()"));
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}
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public void testMoveMethodsUsedInTwoModules2() {
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JSModule[] modules = createModules(
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"function Foo() {}" +
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"Foo.prototype.baz = function() {};",
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// Module 2
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"", // a blank module in the middle
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// Module 3
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"(new Foo).baz() + 1",
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// Module 4
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"(new Foo).baz() + 2");
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modules[1].addDependency(modules[0]);
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modules[2].addDependency(modules[1]);
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modules[3].addDependency(modules[1]);
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test(modules,
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.baz = JSCompiler_stubMethod(0);",
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// Module 2
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"Foo.prototype.baz = JSCompiler_unstubMethod(0, function() {});",
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// Module 3
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"(new Foo).baz() + 1",
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// Module 4
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"(new Foo).baz() + 2"
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});
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}
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public void testTwoMethods() {
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.baz = function() {};",
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// Module 2
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"Foo.prototype.callBaz = function() { this.baz(); }",
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// Module 3
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"(new Foo).callBaz()"),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.baz = JSCompiler_stubMethod(1);",
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// Module 2
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"Foo.prototype.callBaz = JSCompiler_stubMethod(0);",
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// Module 3
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"Foo.prototype.baz = JSCompiler_unstubMethod(1, function() {});" +
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"Foo.prototype.callBaz = " +
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" JSCompiler_unstubMethod(0, function() { this.baz(); });" +
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"(new Foo).callBaz()"
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});
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}
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public void testTwoMethods2() {
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// if the programmer screws up the module order, we don't try to correct
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// the mistake.
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.baz = function() {};",
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// Module 2
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"(new Foo).callBaz()",
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// Module 3
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"Foo.prototype.callBaz = function() { this.baz(); }"),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.baz = JSCompiler_stubMethod(0);",
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// Module 2
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"(new Foo).callBaz()",
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// Module 3
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"Foo.prototype.baz = JSCompiler_unstubMethod(0, function() {});" +
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"Foo.prototype.callBaz = function() { this.baz(); };"
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});
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}
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public void testGlobalFunctionsInGraph() {
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.baz = function() {};" +
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"function x() { return (new Foo).baz(); }",
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// Module 2
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"x();"),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.baz = JSCompiler_stubMethod(0);" +
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"function x() { return (new Foo).baz(); }",
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// Module 2
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"Foo.prototype.baz = JSCompiler_unstubMethod(0, function() {});" +
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"x();"
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});
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}
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// Read of closure variable disables method motions.
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public void testClosureVariableReads1() {
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testSame(createModuleChain(
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"function Foo() {}" +
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"(function() {" +
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"var x = 'x';" +
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"Foo.prototype.baz = function() {x};" +
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"})();",
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// Module 2
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"var y = new Foo(); y.baz();"));
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}
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// Read of global variable is fine.
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public void testClosureVariableReads2() {
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.b1 = function() {" +
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" var x = 1;" +
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" Foo.prototype.b2 = function() {" +
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" Foo.prototype.b3 = function() {" +
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" x;" +
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" }" +
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" }" +
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"};",
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// Module 2
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"var y = new Foo(); y.b1();",
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// Module 3
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"y = new Foo(); z.b2();",
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// Module 4
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"y = new Foo(); z.b3();"
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),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.b1 = JSCompiler_stubMethod(0);",
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// Module 2
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"Foo.prototype.b1 = JSCompiler_unstubMethod(0, function() {" +
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" var x = 1;" +
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" Foo.prototype.b2 = function() {" +
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" Foo.prototype.b3 = function() {" +
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" x;" +
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" }" +
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" }" +
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"});" +
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"var y = new Foo(); y.b1();",
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// Module 3
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"y = new Foo(); z.b2();",
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// Module 4
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"y = new Foo(); z.b3();"
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});
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}
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public void testClosureVariableReads3() {
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test(createModuleChain(
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"function Foo() {}" +
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"Foo.prototype.b1 = function() {" +
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" Foo.prototype.b2 = function() {" +
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" var x = 1;" +
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" Foo.prototype.b3 = function() {" +
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" x;" +
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" }" +
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" }" +
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"};",
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// Module 2
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"var y = new Foo(); y.b1();",
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// Module 3
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"y = new Foo(); z.b2();",
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// Module 4
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"y = new Foo(); z.b3();"
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),
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new String[] {
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STUB_DECLARATIONS +
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"function Foo() {}" +
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"Foo.prototype.b1 = JSCompiler_stubMethod(0);",
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// Module 2
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"Foo.prototype.b1 = JSCompiler_unstubMethod(0, function() {" +
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" Foo.prototype.b2 = JSCompiler_stubMethod(1);" +
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"});" +
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"var y = new Foo(); y.b1();",
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// Module 3
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"Foo.prototype.b2 = JSCompiler_unstubMethod(1, function() {" +
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" var x = 1;" +
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" Foo.prototype.b3 = function() {" +
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" x;" +
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" }" +
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"});" +
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"y = new Foo(); z.b2();",
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// Module 4
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"y = new Foo(); z.b3();"
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});
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}
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// Read of global variable is fine.
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public void testNoClosureVariableReads1() {
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test(createModuleChain(
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"function Foo() {}" +
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"var x = 'x';" +
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"Foo.prototype.baz = function(){x};",
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// Module 2
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"var y = new Foo(); y.baz();"),
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new String[] {
|
||
|
|
STUB_DECLARATIONS +
|
||
|
|
"function Foo() {}" +
|
||
|
|
"var x = 'x';" +
|
||
|
|
"Foo.prototype.baz = JSCompiler_stubMethod(0);",
|
||
|
|
// Module 2
|
||
|
|
"Foo.prototype.baz = JSCompiler_unstubMethod(0, function(){x});" +
|
||
|
|
"var y = new Foo(); y.baz();"
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
// Read of a local is fine.
|
||
|
|
public void testNoClosureVariableReads2() {
|
||
|
|
test(createModuleChain(
|
||
|
|
"function Foo() {}" +
|
||
|
|
"Foo.prototype.baz = function(){var x = 1;x};",
|
||
|
|
// Module 2
|
||
|
|
"var y = new Foo(); y.baz();"),
|
||
|
|
new String[] {
|
||
|
|
STUB_DECLARATIONS +
|
||
|
|
"function Foo() {}" +
|
||
|
|
"Foo.prototype.baz = JSCompiler_stubMethod(0);",
|
||
|
|
// Module 2
|
||
|
|
"Foo.prototype.baz = JSCompiler_unstubMethod(" +
|
||
|
|
" 0, function(){var x = 1; x});" +
|
||
|
|
"var y = new Foo(); y.baz();"
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
// An anonymous inner function reading a closure variable is fine.
|
||
|
|
public void testInnerFunctionClosureVariableReads() {
|
||
|
|
test(createModuleChain(
|
||
|
|
"function Foo() {}" +
|
||
|
|
"Foo.prototype.baz = function(){var x = 1;" +
|
||
|
|
" return function(){x}};",
|
||
|
|
// Module 2
|
||
|
|
"var y = new Foo(); y.baz();"),
|
||
|
|
new String[] {
|
||
|
|
STUB_DECLARATIONS +
|
||
|
|
"function Foo() {}" +
|
||
|
|
"Foo.prototype.baz = JSCompiler_stubMethod(0);",
|
||
|
|
// Module 2
|
||
|
|
"Foo.prototype.baz = JSCompiler_unstubMethod(" +
|
||
|
|
" 0, function(){var x = 1; return function(){x}});" +
|
||
|
|
"var y = new Foo(); y.baz();"
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
public void testIssue600() {
|
||
|
|
testSame(
|
||
|
|
createModuleChain(
|
||
|
|
"var jQuery1 = (function() {\n" +
|
||
|
|
" var jQuery2 = function() {};\n" +
|
||
|
|
" var theLoneliestNumber = 1;\n" +
|
||
|
|
" jQuery2.prototype = {\n" +
|
||
|
|
" size: function() {\n" +
|
||
|
|
" return theLoneliestNumber;\n" +
|
||
|
|
" }\n" +
|
||
|
|
" };\n" +
|
||
|
|
" return jQuery2;\n" +
|
||
|
|
"})();\n",
|
||
|
|
|
||
|
|
"(function() {" +
|
||
|
|
" var div = jQuery1('div');" +
|
||
|
|
" div.size();" +
|
||
|
|
"})();"));
|
||
|
|
}
|
||
|
|
|
||
|
|
public void testIssue600b() {
|
||
|
|
testSame(
|
||
|
|
createModuleChain(
|
||
|
|
"var jQuery1 = (function() {\n" +
|
||
|
|
" var jQuery2 = function() {};\n" +
|
||
|
|
" jQuery2.prototype = {\n" +
|
||
|
|
" size: function() {\n" +
|
||
|
|
" return 1;\n" +
|
||
|
|
" }\n" +
|
||
|
|
" };\n" +
|
||
|
|
" return jQuery2;\n" +
|
||
|
|
"})();\n",
|
||
|
|
|
||
|
|
"(function() {" +
|
||
|
|
" var div = jQuery1('div');" +
|
||
|
|
" div.size();" +
|
||
|
|
"})();"));
|
||
|
|
}
|
||
|
|
|
||
|
|
public void testIssue600c() {
|
||
|
|
test(
|
||
|
|
createModuleChain(
|
||
|
|
"var jQuery2 = function() {};\n" +
|
||
|
|
"jQuery2.prototype = {\n" +
|
||
|
|
" size: function() {\n" +
|
||
|
|
" return 1;\n" +
|
||
|
|
" }\n" +
|
||
|
|
"};\n",
|
||
|
|
|
||
|
|
"(function() {" +
|
||
|
|
" var div = jQuery2('div');" +
|
||
|
|
" div.size();" +
|
||
|
|
"})();"),
|
||
|
|
new String[] {
|
||
|
|
STUB_DECLARATIONS +
|
||
|
|
"var jQuery2 = function() {};\n" +
|
||
|
|
"jQuery2.prototype = {\n" +
|
||
|
|
" size: JSCompiler_stubMethod(0)\n" +
|
||
|
|
"};\n",
|
||
|
|
"jQuery2.prototype.size=" +
|
||
|
|
" JSCompiler_unstubMethod(0,function(){return 1});" +
|
||
|
|
"(function() {" +
|
||
|
|
" var div = jQuery2('div');" +
|
||
|
|
" div.size();" +
|
||
|
|
"})();"
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
public void testIssue600d() {
|
||
|
|
test(
|
||
|
|
createModuleChain(
|
||
|
|
"var jQuery2 = function() {};\n" +
|
||
|
|
"(function() {" +
|
||
|
|
" jQuery2.prototype = {\n" +
|
||
|
|
" size: function() {\n" +
|
||
|
|
" return 1;\n" +
|
||
|
|
" }\n" +
|
||
|
|
" };\n" +
|
||
|
|
"})();",
|
||
|
|
|
||
|
|
"(function() {" +
|
||
|
|
" var div = jQuery2('div');" +
|
||
|
|
" div.size();" +
|
||
|
|
"})();"),
|
||
|
|
new String[] {
|
||
|
|
STUB_DECLARATIONS +
|
||
|
|
"var jQuery2 = function() {};\n" +
|
||
|
|
"(function() {" +
|
||
|
|
" jQuery2.prototype = {\n" +
|
||
|
|
" size: JSCompiler_stubMethod(0)\n" +
|
||
|
|
" };\n" +
|
||
|
|
"})();",
|
||
|
|
"jQuery2.prototype.size=" +
|
||
|
|
" JSCompiler_unstubMethod(0,function(){return 1});" +
|
||
|
|
"(function() {" +
|
||
|
|
" var div = jQuery2('div');" +
|
||
|
|
" div.size();" +
|
||
|
|
"})();"
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
public void testIssue600e() {
|
||
|
|
testSame(
|
||
|
|
createModuleChain(
|
||
|
|
"var jQuery2 = function() {};\n" +
|
||
|
|
"(function() {" +
|
||
|
|
" var theLoneliestNumber = 1;\n" +
|
||
|
|
" jQuery2.prototype = {\n" +
|
||
|
|
" size: function() {\n" +
|
||
|
|
" return theLoneliestNumber;\n" +
|
||
|
|
" }\n" +
|
||
|
|
" };\n" +
|
||
|
|
"})();",
|
||
|
|
|
||
|
|
"(function() {" +
|
||
|
|
" var div = jQuery2('div');" +
|
||
|
|
" div.size();" +
|
||
|
|
"})();"));
|
||
|
|
}
|
||
|
|
|
||
|
|
public void testPrototypeOfThisAssign() {
|
||
|
|
testSame(
|
||
|
|
createModuleChain(
|
||
|
|
"/** @constructor */" +
|
||
|
|
"function F() {}" +
|
||
|
|
"this.prototype.foo = function() {};",
|
||
|
|
"(new F()).foo();"));
|
||
|
|
}
|
||
|
|
}
|