598 lines
20 KiB
Java
598 lines
20 KiB
Java
/*
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* Copyright 2010 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.jsonml;
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import com.google.common.base.Preconditions;
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import com.google.javascript.jscomp.Compiler;
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import com.google.javascript.jscomp.CompilerPass;
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import com.google.javascript.jscomp.CompilerTestCase;
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import com.google.javascript.rhino.Token;
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import com.google.javascript.jscomp.jsonml.Writer;
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import com.google.javascript.jscomp.jsonml.JsonML;
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import com.google.javascript.jscomp.jsonml.JsonMLAst;
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import com.google.javascript.jscomp.jsonml.JsonMLUtil;
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import com.google.javascript.rhino.Node;
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import com.google.caja.parser.js.JsonMLParser;
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/**
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* Tests for parsing JsonML to AST and vice versa.
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* @author dhans@google.com (Daniel Hans)
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*
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*/
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public class JsonMLConversionTest extends CompilerTestCase {
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@Override
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public CompilerPass getProcessor(Compiler compiler) {
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return null; // unused
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}
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@Override
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public void setUp() {
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enableEcmaScript5(true);
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}
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private void testJsonMLToAstConversion(String js) throws Exception {
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JsonML jsonml = JsonMLParser.parse(js);
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Node root = parseExpectedJs(js);
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Node ast = root.getFirstChild();
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Preconditions.checkState(ast.getType() == Token.SCRIPT);
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testJsonMLToAstConversion(ast, jsonml, js);
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}
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private void testJsonMLToAstConversion(Node astRoot, JsonML jsonmlRoot,
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String js) {
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Compiler compiler = new Compiler();
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JsonMLAst ast = new JsonMLAst(jsonmlRoot);
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Node resultAstRoot = ast.getAstRoot(compiler);
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String explanation = resultAstRoot.checkTreeEquals(astRoot);
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assertNull("JsonML -> AST converter returned incorect result for " + js
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+ "\n" + explanation, explanation);
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}
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private void testAstToJsonMLConverstion(Node astRoot, JsonML jsonmlRoot,
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String js) {
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JsonML resultJsonMLRoot = (new Writer()).processAst(astRoot);
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String explanation = JsonMLUtil.compare(resultJsonMLRoot, jsonmlRoot);
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assertNull("AST -> JsonML converter returned incorrect result for " + js +
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"\n" + explanation, explanation);
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}
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private void testConversion(String js) throws Exception {
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JsonML jsonml = JsonMLParser.parse(js);
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Node root = parseExpectedJs(js);
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Node ast = root.getFirstChild();
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Preconditions.checkState(ast.getType() == Token.SCRIPT);
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testJsonMLToAstConversion(ast, jsonml, js);
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jsonml = JsonMLParser.parse(js);
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testAstToJsonMLConverstion(ast, jsonml, js);
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}
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public void testArray() throws Exception {
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testConversion("[,]");
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testConversion("[]");
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testConversion("[function (x) {}]");
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testConversion("[[], [a, [], [[[]], 1], f([a])], 1];");
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testConversion("x = [1, 2, 3]");
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testConversion("var x = [1, 2, 3]");
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testConversion("[, 1, Object(), , , 2]");
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testConversion("[{x: 'abc', y: 1}]");
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}
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public void testArray1() throws Exception {
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testConversion("[,]");
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}
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public void testAssignOperators() throws Exception {
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testConversion("x += 1, x -= 1, x *= 1, x /= 1, x %= 1");
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testConversion("x |= 1, x ^= x, x &= 0");
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testConversion("x <<= 1, x >>= 1, x >>>= 1");
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testConversion("y = x += 1");
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}
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public void testCalls() throws Exception {
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testConversion("f()");
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testConversion("f(1)");
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testConversion("f('a')");
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testConversion("f(true)");
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testConversion("f(null)");
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testConversion("f(undefined)");
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testConversion("f(a + b)");
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testConversion("f(g(h(a)) * h(g(u(z('a')))))");
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testConversion("x = f()");
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testConversion("x = f(1)");
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testConversion("x = f(a + b)");
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testConversion("x = f(g(h(a)) * h(g(u(z('a')))))");
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testConversion("String('a')");
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testConversion("Number(1)");
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testConversion("Boolean(0)");
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testConversion("Object()");
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testConversion("Array('a', 1, false, null, Object(), String('a'))");
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testConversion("(function() {})()");
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testConversion("(function(x) {})(x)");
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testConversion("(function(x) {var y = x << 1; return y})(x)");
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testConversion("(function(x) {y = x << 1; return y})(x)");
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testConversion("var x = (function(x) {y = x << 1; return y})(x)");
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testConversion("var x = (function(x) {return x << 1})(x)");
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testConversion("eval()");
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testConversion("eval('x')");
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testConversion("x = eval('x')");
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testConversion("var x = eval('x')");
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testConversion("eval(Template('foo${bar}baz')); var Template;");
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testConversion("a.x()");
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testConversion("a[x]()");
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testConversion("z = a.x()");
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testConversion("var z = a.x()");
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testConversion("z = a[x]()");
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testConversion("z = a['x']()");
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testConversion("var z = a[x]()");
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testConversion("var z = a['x']()");
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testConversion("a.x(y)");
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testConversion("a[x](y)");
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testConversion("a['x'](y)");
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testConversion("a[x](y, z, 'a', null, true, f(y))");
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testConversion("a['x'](y, z, 'a', null, true, f(y))");
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testConversion("a[b[c[d]]()].x");
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testConversion("(f())()");
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testConversion("(f(x))(y)");
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testConversion("(f = getFn())()");
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}
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public void testConditionals() throws Exception {
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testConversion("x ? y : z");
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testConversion("result = x ? y : z");
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}
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public void testDecIncOperators() throws Exception {
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testConversion("x--");
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testConversion("--x");
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testConversion("x++");
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testConversion("++x");
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testConversion("var y=x++, z=++x; var s=y--, r=++y;");
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}
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public void testDelete() throws Exception {
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testConversion("delete a");
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testConversion("delete a.x");
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testConversion("delete a[0]");
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testConversion("delete a.x[0]");
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}
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public void testDirectives() throws Exception {
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testConversion("'use strict'");
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testConversion("function foo() {'use strict'}");
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testConversion("'use strict'; function foo() {'use strict'}");
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}
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public void testDoWhile() throws Exception {
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// testConversion("do; while (true)");
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testConversion("do {} while (true)");
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testConversion("do {;} while (true)");
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testConversion("do {} while (f(x, y))");
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testConversion("do {} while (f(f(f(x, y))))");
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testConversion("do {} while ((f(f(f(x, y))))())");
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testConversion("do {2 + 3; q = 2 + 3; var v = y * z;"
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+ "g = function(a) {true; var b = a + 1; return a * a}} while (--x)");
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}
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public void testFor() throws Exception {
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testConversion("for (;true;) {;}");
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testJsonMLToAstConversion("for (i = 0; i < 10; ++i) x++");
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testConversion("for (i = 0; i < 10; ++i) {x++}");
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testConversion("for (i = 0; i < 10; ++i) {2 + 3; q = 2 + 3; "
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+ "var v = y * z; g = function(a) {true; var b = a + 1;"
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+ "return a * a}}");
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testConversion("for(;true;) {break}");
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testConversion("for(i = 0; i < 10; ++i) {if (i > 5) {break}}");
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testConversion("s: for(i = 0; i < 10; ++i) {if (i > 5) {break s}}");
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testConversion("for (i = 0;true; ++i) {"
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+ "if (i % 2) {continue} else {var x = i / 3; f(x)}}");
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}
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public void testForIn() throws Exception {
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testConversion("for (var i in x) {}");
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testConversion("for (var i in x) {;}");
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testConversion("for (var i in x) {f(x)}");
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testConversion("s: for(var i in x) {if (i > 5) {break s}}");
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testConversion("for (var i in x) {if (i % 2) {"
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+ "continue} else {var x = i / 3; f(x)}}");
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testConversion("for (var i in x) {2 + 3; q = 2 + 3; var v = y * z; "
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+ "g = function(a) {true; var b = a + 1; return a * a}}");
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testConversion("for (i in x) {}");
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testConversion("for (i in x) {;}");
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testConversion("for (i in x) {f(x)}");
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testConversion("s: for (i in x) {if (i > 5) {break s}}");
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testConversion("for (i in x) {if (i % 2) {"
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+ "continue} else {var x = i / 3; f(x)}}");
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testConversion("for (i in x) {2 + 3; q = 2 + 3; var v = y * z; "
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+ "g = function(a) {true; var b = a + 1; return a * a}}");
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}
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public void testFunctions() throws Exception {
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testConversion("(function () {})");
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testConversion("(function (x, y) {})");
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testConversion("(function () {})()");
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testConversion("(function (x, y) {})()");
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testConversion("[ function f() {} ]");
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testConversion("var f = function f() {};");
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testConversion("for (function f() {};true;) {}");
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testConversion("x = (function (x, y) {})");
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testConversion("function f() {}");
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testConversion("for (;true;) { function f() {} }");
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testConversion("function f() {;}");
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testConversion("function f() {x}");
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testConversion("function f() {x;y;z}");
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testConversion("function f() {{}}");
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}
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public void testIfElse1() throws Exception {
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testConversion("if (true) {x = 1}");
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testConversion("if (true) {x = 1} else {x = 2}");
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testConversion("if (f(f(f()))) {x = 1} else {x = 2}");
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testConversion("if ((f(f(f())))()) {x = 1} else {x = 2}");
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testConversion("if (true) {x = 1}; x = 1;");
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}
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public void testLabels() throws Exception {
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testConversion("s: ;");
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testConversion("s: {;}");
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testConversion("s: while(true) {;}");
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testConversion("s: switch (x) {case 'a': break s;}");
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}
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public void testLogicalExpr() throws Exception {
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testConversion("a && b");
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testConversion("a || b");
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testConversion("a && b || c");
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testConversion("a && (b || c)");
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testConversion("f(x) && (function (x) {"
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+ "return x % 2 == 0 })(z) || z % 3 == 0 ? true : false");
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}
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public void testMathExpr() throws Exception {
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testConversion("2 + 3 * 4");
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testConversion("(2 + 3) * 4");
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testConversion("2 * (3 + 4)");
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}
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public void testMember() throws Exception {
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testConversion("o.x");
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testConversion("a.b.c");
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testConversion("a.b.c.d");
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testConversion("o[x]");
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testConversion("o[0]");
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testConversion("o[2 + 3 * 4]");
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testConversion("o[(function (x){var y = g(x) << 1; return y * x})()]");
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testConversion("o[o.x]");
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testConversion("o.x[x]");
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testConversion("a.b[o.x]");
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testConversion("a.b[1]");
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testConversion("a[b[c[d]]].x");
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}
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public void testNew() throws Exception {
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testConversion("new A");
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testConversion("new A()");
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testConversion("new A(x, y, z)");
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testConversion("new A(f(x), g(y), h(z))");
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testConversion("new A(x, new B(x, y), z)");
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testConversion("new A(1), new B()");
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testConversion("new A, B");
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testConversion("x = new A(a)");
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testConversion("var x = new A(a, b)");
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testConversion("var x = new A(1), y = new B()");
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}
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public void testObject0() throws Exception {
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// TODO(johnlenz): quoted object literal properties are not noted.
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// testConversion("({'a':0})");
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// TODO(johnlenz): numbers are represented as strings
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// testConversion("({1:0})");
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}
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public void testObject() throws Exception {
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testConversion("x = {}");
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testConversion("var x = {}");
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testConversion("x = {x: 1, y: 2}");
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// testConversion("var x = {'2': 1, 'a': 2}");
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// testConversion("var x = {2: 1, a: 2}");
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testConversion("x = {x: null}");
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testConversion("x = {a: function f() {}}");
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// testConversion("x = {1: function f() {}}");
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testConversion("x = {a: f()}");
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// testConversion("x = {1: f()}");
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testConversion("x = {a: function f() {2 + 3; q = 2 + 3; var v = y * z; "
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+ "g = function(a) {true; var b = a + 1; return a * a}}}");
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// testConversion("x = {1: function f() {2 + 3; q = 2 + 3; var v = y * z; "
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// + "g = function(a) {true; var b = a + 1; return a * a}}}");
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testConversion("x = {get a() {return 1}}");
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testConversion("x = {set a(b) {}}");
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}
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public void testOperators() throws Exception {
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testConversion("x instanceof Null");
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testConversion("!x instanceof A");
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testConversion("!(x instanceof A)");
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testConversion("'a' in x");
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testConversion("if('a' in x) {f(x)}");
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testConversion("undefined in A");
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testConversion("!(Number(1) in [2, 3, 4])");
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testConversion("true ? x : y");
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testConversion("(function() {var y = 2 + 3 * 4; return y >> 1})() ? x : y");
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}
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public void testReturnStatement() throws Exception {
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testConversion("x = function f() {return}");
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testConversion("x = function f() {return 1}");
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testConversion("x = function f() {return 2 + 3 / 4}");
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testConversion("x = function f() {return function() {}}");
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testConversion("x = function f() {var y = 2; "
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+ "return function() {return y * 3}}");
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testConversion("x = function f() {z = 2 + 3; "
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+ "return (function(z) {return z * y})(z)}");
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}
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public void testRegExp() throws Exception {
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testConversion("/ab/");
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testConversion("/ab/g");
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testConversion("x = /ab/");
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testConversion("x = /ab/g");
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testConversion("var x = /ab/");
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testConversion("var x = /ab/g");
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testConversion("function f() {"
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+ "/ab/; var x = /ab/; (function g() {/ab/; var x = /ab/})()}");
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testConversion("var f = function () {return /ab/g;}");
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}
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public void testSimplePrograms() throws Exception {
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testConversion(";");
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testConversion("1");
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testConversion("x");
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testConversion("x=1");
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testConversion("{}");
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testConversion("{;}");
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testConversion("{x=1}");
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testConversion("x='a'");
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testConversion("true");
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testConversion("false");
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testConversion("x=true");
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testConversion("x=false");
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testConversion("undefined");
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testConversion("x=undefined");
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testConversion("null");
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testConversion("x = null");
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testConversion("this");
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testConversion("2 + 3; q = 2 + 3; var v = y * z; "
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+ "g = function(a) {true; var b = a + 1; return a * a}");
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testConversion("a; b");
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testConversion("a; b; c; d");
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testConversion("x = function () {}");
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testConversion("x = function f() {}");
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testConversion("x = function (arg1, arg2) {}");
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testConversion("x = function f(arg1, arg2) {}");
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testConversion("x = function f(arg1, arg2) {1}");
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testConversion("x = function f(arg1, arg2) {x}");
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testConversion("x = function f(arg1, arg2) {x = 1 + 1}");
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testConversion("var re = new RegExp(document.a.b.c);"
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+ "var m = re.exec(document.a.b.c);");
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}
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public void testSwitch() throws Exception {
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testConversion("switch (x) {}");
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testConversion("switch (x) {case 'a':}");
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testConversion("switch (x) {case 'a':case 'b':}");
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testConversion("switch (x) {case 'a':case 'b': x}");
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testConversion("switch (x) {case 'a':case 'b': {;}}");
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testConversion("switch (x) {case 'a':case 'b': f()}");
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testConversion("switch (x) {case 'x': case 'y': {;} case 'a':case 'b': f()}");
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testConversion("switch (x) {case 'a': f(x)}");
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testConversion("switch (x) {case 'a': {f()} {g(x)}}");
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testConversion("switch (x) {case 'a': f(); g(x)}");
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testConversion("switch (x) {default: ;}");
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testConversion("switch (x) {default:case 'a': ;}");
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testConversion("switch (x) {case 'a':case'b':default: f()}");
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testConversion("switch (x) {default:f(x); g(); case 'a': ; case 'b': g(x)}");
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testConversion("switch (x) {case 'a': default: {f(x); g(z)} case 'b': g(x)}");
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testConversion("switch (x) {case x: {;}}");
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}
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public void testType() throws Exception {
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testConversion("undefined");
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testConversion("null");
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testConversion("0");
|
|
testConversion("+0");
|
|
testConversion("0.0");
|
|
|
|
testConversion("3.14");
|
|
testConversion("+3.14");
|
|
|
|
testConversion("true");
|
|
testConversion("false");
|
|
}
|
|
|
|
public void testThis() throws Exception {
|
|
testConversion("this");
|
|
testConversion("var x = this");
|
|
testConversion("this.foo()");
|
|
testConversion("var x = this.foo()");
|
|
testConversion("this.bar");
|
|
testConversion("var x = this.bar()");
|
|
testConversion("switch(this) {}");
|
|
testConversion("x + this");
|
|
}
|
|
|
|
public void testThrow() throws Exception {
|
|
testConversion("throw e");
|
|
testConversion("throw 2 + 3 * 4");
|
|
testConversion("throw (function () {2 + 3; q = 2 + 3; var v = y * z; "
|
|
+ "g = function(a) {true; var b = a + 1; return a * a}})()");
|
|
testConversion("throw f(x)");
|
|
testConversion("throw f(f(f(x)))");
|
|
testConversion("throw (f(f(x), y))()");
|
|
}
|
|
|
|
public void testTry() throws Exception {
|
|
testConversion("try {} catch (e) {}");
|
|
testConversion("try {;} catch (e) {;}");
|
|
testConversion("try {var x = 0; y / x} catch (e) {f(e)}");
|
|
testConversion("try {2 + 3; q = 2 + 3; var v = y * z; "
|
|
+ "g = function(a) {true; var b = a + 1; h(q); return a * a}; "
|
|
+ "h(q)} catch (e) {f(x)}");
|
|
|
|
testConversion("try {} finally {}");
|
|
testConversion("try {;} finally {;}");
|
|
testConversion("try {var x = 0; y / x} finally {f(y)}");
|
|
testConversion("try {2 + 3; q = 2 + 3; var v = y * z; "
|
|
+ "g = function(a) {true; var b = a + 1; h(q); return a * a}; "
|
|
+ "h(q)} finally {f(x)}");
|
|
|
|
testConversion("try {} catch (e) {} finally {}");
|
|
testConversion("try {;} catch (e) {;} finally {;}");
|
|
testConversion("try {var x = 0; y / x} catch (e) {;} finally {;}");
|
|
testConversion("try {2 + 3; q = 2 + 3; var v = y * z; "
|
|
+ "g = function(a) {true; var b = a + 1; h(q); return a * a}; h(q)} "
|
|
+ "catch (e) {f(x)} finally {f(x)}");
|
|
}
|
|
|
|
public void testTypeof() throws Exception {
|
|
testConversion("typeof undefined");
|
|
testConversion("typeof null");
|
|
testConversion("typeof 1");
|
|
testConversion("typeof 'a'");
|
|
testConversion("typeof false");
|
|
|
|
testConversion("typeof Null()");
|
|
testConversion("typeof Number(1)");
|
|
testConversion("typeof String('a')");
|
|
testConversion("typeof Boolean(0)");
|
|
|
|
testConversion("typeof x");
|
|
testConversion("typeof new A()");
|
|
testConversion("typeof new A(x)");
|
|
testConversion("typeof f(x)");
|
|
testConversion("typeof (function() {})()");
|
|
testConversion("typeof 2 + 3 * 4");
|
|
|
|
testConversion("typeof typeof x");
|
|
testConversion("typeof typeof typeof x");
|
|
}
|
|
|
|
public void testUnaryExpressions() throws Exception {
|
|
testConversion("!x");
|
|
testConversion("!null");
|
|
testConversion("!3.14");
|
|
testConversion("!true");
|
|
|
|
testConversion("~x");
|
|
testConversion("~null");
|
|
testConversion("~3.14");
|
|
testConversion("~true");
|
|
|
|
testConversion("+x");
|
|
testConversion("+null");
|
|
testConversion("+3.14");
|
|
testConversion("+true");
|
|
|
|
testConversion("-x");
|
|
testConversion("-null");
|
|
testConversion("-true");
|
|
|
|
testConversion("!~+-z");
|
|
testConversion("void x");
|
|
testConversion("void null");
|
|
testConversion("void void !x");
|
|
testConversion("void (x + 1)");
|
|
}
|
|
|
|
public void testVarDeclarations() throws Exception {
|
|
testConversion("var x");
|
|
testConversion("var x = 1");
|
|
testConversion("var x = 1 + 1");
|
|
testConversion("var x = 'a' + 'b'");
|
|
|
|
testConversion("var x, y, z");
|
|
testConversion("var x = 2, y = 2 * x, z");
|
|
|
|
testConversion("var x = function () {}");
|
|
testConversion("var x = function f() {}");
|
|
testConversion("var x = function f(arg1, arg2) {}");
|
|
|
|
testConversion("var x = function f(arg1, arg2) {1}");
|
|
testConversion("var x = function f(arg1, arg2) {x}");
|
|
testConversion("var x = function f(arg1, arg2) {x = 2 * 3}");
|
|
|
|
testConversion("var x = function f() {var x}");
|
|
testConversion("var x = function f() {var y = (z + 2) * q}");
|
|
|
|
testConversion("var x = function f(a, b) {"
|
|
+ "var y = function g(a, b) {z = a + b}}");
|
|
}
|
|
|
|
public void testWhile() throws Exception {
|
|
testConversion("while (true) {;}");
|
|
testConversion("while (true) {f()}");
|
|
testConversion("while (f(x, y)) {break;}");
|
|
testConversion("while (f(f(f(x, y)))) {}");
|
|
testConversion("while ((f(f(f(x, y))))()) {}");
|
|
|
|
testConversion("while (x--) {2 + 3; q = 2 + 3; var v = y * z; "
|
|
+ "g = function(a) {true; var b = a + 1; return a * a}}");
|
|
}
|
|
|
|
public void testWith() throws Exception {
|
|
testConversion("with ({}) {}");
|
|
testConversion("with ({}) {;}");
|
|
testConversion("with (x) {}");
|
|
testConversion("with (x) {f(x)}");
|
|
testConversion("with ({a: function f() {}}) {f(1)}");
|
|
testConversion("with ({z: function f() {2 + 3; q = 2 + 3; var v = y * z;"
|
|
+ "g = function(a) {true; var b = a + 1; return a * a}}}) {f(1)}");
|
|
testConversion("with (x in X) {x++}");
|
|
}
|
|
}
|