src/v8/test/webkit/codegen-temporaries.js - cobalt - Git at Google

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1.  Redistributions of source code must retain the above copyright
 //     notice, this list of conditions and the following disclaimer.
 // 2.  Redistributions in binary form must reproduce the above copyright
 //     notice, this list of conditions and the following disclaimer in the
 //     documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 description(
 'Tests whether bytecode codegen properly handles temporaries.'
 );

 var a = true;
 a = false || a;
 shouldBeTrue("a");

 var b = false;
 b = true && b;
 shouldBeFalse("b");

 function TestObject() {
     this.toString = function() { return this.test; }
     this.test = "FAIL";
     return this;
 }

 function assign_test1()
 {
     var testObject = new TestObject;
     var a = testObject;
     a.test = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test1()", "'PASS'");

 function assign_test2()
 {
     var testObject = new TestObject;
     var a = testObject;
     a = a.test = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test2()", "'PASS'");

 function assign_test3()
 {
     var testObject = new TestObject;
     var a = testObject;
     a.test = a = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test3()", "'PASS'");

 var testObject4 = new TestObject;
 var a4 = testObject4;
 a4.test = this.a4 = "PASS";

 shouldBe("testObject4.test", "'PASS'");

 var testObject5 = new TestObject;
 var a5 = testObject5;
 a5 = this.a5.test = "PASS";

 shouldBe("testObject5.test", "'PASS'");

 function assign_test6()
 {
     var testObject = new TestObject;
     var a = testObject;
     a["test"] = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test6()", "'PASS'");

 function assign_test7()
 {
     var testObject = new TestObject;
     var a = testObject;
     a = a["test"] = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test7()", "'PASS'");

 function assign_test8()
 {
     var testObject = new TestObject;
     var a = testObject;
     a["test"] = a = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test8()", "'PASS'");

 function assign_test9()
 {
     var testObject = new TestObject;
     var a = testObject;
     a["test"] = this.a = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test9()", "'PASS'");

 var testObject10 = new TestObject;
 var a10 = testObject10;
 a10 = this.a10["test"] = "PASS";

 shouldBe("testObject10.test", "'PASS'");

 function assign_test11()
 {
     var testObject = new TestObject;
     var a = testObject;
     a[a = "test"] = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test11()", "'PASS'");

 function assign_test12()
 {
     var test = "test";
     var testObject = new TestObject;
     var a = testObject;
     a[test] = "PASS";
     return testObject.test;
 }

 shouldBe("assign_test12()", "'PASS'");

 function assign_test13()
 {
     var testObject = new TestObject;
     var a = testObject;
     a.test = (a = "FAIL", "PASS");
     return testObject.test;
 }

 shouldBe("assign_test13()", "'PASS'");

 function assign_test14()
 {
     var testObject = new TestObject;
     var a = testObject;
     a["test"] = (a = "FAIL", "PASS");
     return testObject.test;
 }

 shouldBe("assign_test14()", "'PASS'");

 function assign_test15()
 {
     var test = "test";
     var testObject = new TestObject;
     var a = testObject;
     a[test] = (test = "FAIL", "PASS");
     return testObject.test;
 }

 shouldBe("assign_test15()", "'PASS'");

 function assign_test16()
 {
     var a = 1;
     a = (a = 2);
     return a;
 }

 shouldBe("assign_test16()", "2");

 var a17 = 1;
 a17 += (a17 += 1);

 shouldBe("a17", "3");

 function assign_test18()
 {
     var a = 1;
     a += (a += 1);
     return a;
 }

 shouldBe("assign_test18()", "3");

 var a19 = { b: 1 };
 a19.b += (a19.b += 1);

 shouldBe("a19.b", "3");

 function assign_test20()
 {
     var a = { b: 1 };
     a.b += (a.b += 1);
     return a.b;
 }

 shouldBe("assign_test20()", "3");

 var a21 = { b: 1 };
 a21["b"] += (a21["b"] += 1);

 shouldBe("a21['b']", "3");

 function assign_test22()
 {
     var a = { b: 1 };
     a["b"] += (a["b"] += 1);
     return a["b"];
 }

 shouldBe("assign_test22()", "3");

 function assign_test23()
 {
     var o = { b: 1 };
     var a = o;
     a.b += a = 2;
     return o.b;
 }

 shouldBe("assign_test23()", "3");

 function assign_test24()
 {
     var o = { b: 1 };
     var a = o;
     a["b"] += a = 2;
     return o["b"];
 }

 shouldBe("assign_test24()", "3");

 function assign_test25()
 {
     var o = { b: 1 };
     var a = o;
     a[a = "b"] += a = 2;
     return o["b"];
 }

 shouldBe("assign_test25()", "3");

 function assign_test26()
 {
     var o = { b: 1 };
     var a = o;
     var b = "b";
     a[b] += a = 2;
     return o["b"];
 }

 shouldBe("assign_test26()", "3");

 function assign_test27()
 {
     var o = { b: 1 };
     var a = o;
     a.b += (a = 100, 2);
     return o.b;
 }

 shouldBe("assign_test27()", "3");

 function assign_test28()
 {
     var o = { b: 1 };
     var a = o;
     a["b"] += (a = 100, 2);
     return o["b"];
 }

 shouldBe("assign_test28()", "3");

 function assign_test29()
 {
     var o = { b: 1 };
     var a = o;
     var b = "b";
     a[b] += (a = 100, 2);
     return o["b"];
 }

 shouldBe("assign_test29()", "3");

 function assign_test30()
 {
     var a = "foo";
     a += (a++);
     return a;
 }

 shouldBe("assign_test30()", "'fooNaN'");

 function assign_test31()
 {
     function result() { return "PASS"; }
     return (globalVar = result)()
 }

 shouldBe("assign_test31()", "'PASS'");

 function bracket_test1()
 {
     var o = [-1];
     var a = o[++o];
     return a;
 }

 shouldBe("bracket_test1()", "-1");

 function bracket_test2()
 {
     var o = [1];
     var a = o[--o];
     return a;
 }

 shouldBe("bracket_test2()", "1");

 function bracket_test3()
 {
     var o = [0];
     var a = o[o++];
     return a;
 }

 shouldBe("bracket_test3()", "0");

 function bracket_test4()
 {
     var o = [0];
     var a = o[o--];
     return a;
 }

 shouldBe("bracket_test4()", "0");

 function bracket_test5()
 {
     var o = [1];
     var a = o[o ^= 1];
     return a;
 }

 shouldBe("bracket_test5()", "1");

 function bracket_test6()
 {
     var o = { b: 1 }
     var b = o[o = { b: 2 }, "b"];
     return b;
 }

 shouldBe("bracket_test6()", "1");

 function mult_test1()
 {
     var a = 1;
     return a * (a = 2);
 }

 shouldBe("mult_test1()", "2");

 function mult_test2()
 {
     var a = 1;
     return a * ++a;
 }

 shouldBe("mult_test2()", "2");

 function mult_test3()
 {
     var a = 1;
     return a * (a += 1);
 }

 shouldBe("mult_test3()", "2");

 function div_test1()
 {
     var a = 1;
     return a / (a = 2);
 }

 shouldBe("div_test1()", "0.5");

 function div_test2()
 {
     var a = 1;
     return a / ++a;
 }

 shouldBe("div_test2()", "0.5");

 function div_test3()
 {
     var a = 1;
     return a / (a += 1);
 }

 shouldBe("div_test3()", "0.5");

 function mod_test1()
 {
     var a = 1;
     return a % (a = 2);
 }

 shouldBe("mod_test1()", "1");

 function mod_test2()
 {
     var a = 1;
     return a % ++a;
 }

 shouldBe("mod_test2()", "1");

 function mod_test3()
 {
     var a = 1;
     return a % (a += 1);
 }

 shouldBe("mod_test3()", "1");

 function add_test1()
 {
     var a = 1;
     return a + (a = 2);
 }

 shouldBe("add_test1()", "3");

 function add_test2()
 {
     var a = 1;
     return a + ++a;
 }

 shouldBe("add_test2()", "3");

 function add_test3()
 {
     var a = 1;
     return a + (a += 1);
 }

 shouldBe("add_test3()", "3");

 function sub_test1()
 {
     var a = 1;
     return a - (a = 2);
 }

 shouldBe("sub_test1()", "-1");

 function sub_test2()
 {
     var a = 1;
     return a - ++a;
 }

 shouldBe("sub_test2()", "-1");

 function sub_test3()
 {
     var a = 1;
     return a - (a += 1);
 }

 shouldBe("sub_test3()", "-1");

 function lshift_test1()
 {
     var a = 1;
     return a << (a = 2);
 }

 shouldBe("lshift_test1()", "4");

 function lshift_test2()
 {
     var a = 1;
     return a << ++a;
 }

 shouldBe("lshift_test2()", "4");

 function lshift_test3()
 {
     var a = 1;
     return a << (a += 1);
 }

 shouldBe("lshift_test3()", "4");

 function rshift_test1()
 {
     var a = 4;
     return a >> (a = 2);
 }

 shouldBe("rshift_test1()", "1");

 function rshift_test2()
 {
     var a = 2;
     return a >> --a;
 }

 shouldBe("rshift_test2()", "1");

 function rshift_test3()
 {
     var a = 2;
     return a >> (a -= 1);
 }

 shouldBe("rshift_test3()", "1");

 function urshift_test1()
 {
     var a = 4;
     return a >>> (a = 2);
 }

 shouldBe("urshift_test1()", "1");

 function urshift_test2()
 {
     var a = 2;
     return a >>> --a;
 }

 shouldBe("urshift_test2()", "1");

 function urshift_test3()
 {
     var a = 2;
     return a >>> (a -= 1);
 }

 shouldBe("urshift_test3()", "1");

 function less_test1()
 {
     var a = 1;
     return a < (a = 2);
 }

 shouldBeTrue("less_test1()");

 function less_test2()
 {
     var a = 1;
     return a < ++a;
 }

 shouldBeTrue("less_test2()");

 function less_test3()
 {
     var a = 1;
     return a < (a += 1);
 }

 shouldBeTrue("less_test3()");

 function greater_test1()
 {
     var a = 2;
     return a > (a = 1);
 }

 shouldBeTrue("greater_test1()");

 function greater_test2()
 {
     var a = 2;
     return a > --a;
 }

 shouldBeTrue("greater_test2()");

 function greater_test3()
 {
     var a = 2;
     return a > (a -= 1);
 }

 shouldBeTrue("greater_test3()");

 function lesseq_test1()
 {
     var a = 1;
     return a <= (a = 3, 2);
 }

 shouldBeTrue("lesseq_test1()");

 function lesseq_test2()
 {
     var a = 1;
     return a <= (++a, 1);
 }

 shouldBeTrue("lesseq_test2()");

 function lesseq_test3()
 {
     var a = 1;
     return a <= (a += 1, 1);
 }

 shouldBeTrue("lesseq_test3()");

 function greatereq_test1()
 {
     var a = 2;
     return a >= (a = 1, 2);
 }

 shouldBeTrue("greatereq_test1()");

 function greatereq_test2()
 {
     var a = 2;
     return a >= (--a, 2);
 }

 shouldBeTrue("greatereq_test2()");

 function greatereq_test3()
 {
     var a = 2;
     return a >= (a -= 1, 2);
 }

 shouldBeTrue("greatereq_test3()");

 function instanceof_test1()
 {
     var a = { };
     return a instanceof (a = 1, Object);
 }

 shouldBeTrue("instanceof_test1()");

 function instanceof_test2()
 {
     var a = { valueOf: function() { return 1; } };
     return a instanceof (++a, Object);
 }

 shouldBeTrue("instanceof_test2()");

 function instanceof_test3()
 {
     var a = { valueOf: function() { return 1; } };
     return a instanceof (a += 1, Object);
 }

 shouldBeTrue("instanceof_test3()");

 function in_test1()
 {
     var a = "a";
     return a in (a = "b", { a: 1 });
 }

 shouldBeTrue("in_test1()");

 function in_test2()
 {
     var a = { toString: function() { return "a"; }, valueOf: function() { return 1; } };
     return a in (++a, { a: 1 });
 }

 shouldBeTrue("in_test2()");

 function in_test3()
 {
     var a = { toString: function() { return "a"; }, valueOf: function() { return 1; } };
     return a in (a += 1, { a: 1 });
 }

 shouldBeTrue("in_test3()");

 function eq_test1()
 {
     var a = 1;
     return a == (a = 2);
 }

 shouldBeFalse("eq_test1()");

 function eq_test2()
 {
     var a = 1;
     return a == ++a;
 }

 shouldBeFalse("eq_test2()");

 function eq_test3()
 {
     var a = 1;
     return a == (a += 1);
 }

 shouldBeFalse("eq_test3()");

 function neq_test1()
 {
     var a = 1;
     return a != (a = 2);
 }

 shouldBeTrue("neq_test1()");

 function neq_test2()
 {
     var a = 1;
     return a != ++a;
 }

 shouldBeTrue("neq_test2()");

 function neq_test3()
 {
     var a = 1;
     return a != (a += 1);
 }

 shouldBeTrue("neq_test3()");

 function stricteq_test1()
 {
     var a = 1;
     return a === (a = 2);
 }

 shouldBeFalse("stricteq_test1()");

 function stricteq_test2()
 {
     var a = 1;
     return a === ++a;
 }

 shouldBeFalse("stricteq_test2()");

 function stricteq_test3()
 {
     var a = 1;
     return a === (a += 1);
 }

 shouldBeFalse("stricteq_test3()");

 function nstricteq_test1()
 {
     var a = 1;
     return a !== (a = 2);
 }

 shouldBeTrue("nstricteq_test1()");

 function nstricteq_test2()
 {
     var a = 1;
     return a !== ++a;
 }

 shouldBeTrue("nstricteq_test2()");

 function nstricteq_test3()
 {
     var a = 1;
     return a !== (a += 1);
 }

 shouldBeTrue("nstricteq_test3()");

 function bitand_test1()
 {
     var a = 1;
     return a & (a = 2);
 }

 shouldBe("bitand_test1()", "0");

 function bitand_test2()
 {
     var a = 1;
     return a & ++a;
 }

 shouldBe("bitand_test2()", "0");

 function bitand_test3()
 {
     var a = 1;
     return a & (a += 1);
 }

 shouldBe("bitand_test3()", "0");

 function bitor_test1()
 {
     var a = 1;
     return a | (a = 2);
 }

 shouldBe("bitor_test1()", "3");

 function bitor_test2()
 {
     var a = 1;
     return a | ++a;
 }

 shouldBe("bitor_test2()", "3");

 function bitor_test3()
 {
     var a = 1;
     return a | (a += 1);
 }

 shouldBe("bitor_test3()", "3");

 function bitxor_test1()
 {
     var a = 1;
     return a ^ (a = 2);
 }

 shouldBe("bitxor_test1()", "3");

 function bitxor_test2()
 {
     var a = 1;
     return a ^ ++a;
 }

 shouldBe("bitxor_test2()", "3");

 function bitxor_test3()
 {
     var a = 1;
     return a ^ (a += 1);
 }

 shouldBe("bitxor_test3()", "3");

 function switch_test1_helper(a, b)
 {
     switch (a) {
     case b:
         break;
     default:
         break;
     }

     return b;
 }

 function switch_test1()
 {
     return switch_test1_helper(0, 1) == 1;
 }

 shouldBeTrue("switch_test1()");

 function switch_test2_helper(a, b)
 {
     var c = b;
     switch (a) {
     case c:
         break;
     default:
         break;
     }

     return c;
 }

 function switch_test2()
 {
     return switch_test2_helper(0, 1) == 1;
 }

 shouldBeTrue("switch_test2()");

 function switch_test3_helper(a)
 {
     switch (a) {
     case this:
         break;
     default:
         break;
     }

     return this;
 }

 function switch_test3()
 {
     return this == switch_test3_helper.call(this, 0);
 }

 shouldBeTrue("switch_test3()");

 function construct_test()
 {
     var c = [function(a) { this.a = a; }];

     function f()
     {
         return new c[0](true);
     }

     return f().a;
 }

 shouldBeTrue("construct_test()");
 var testStr = "[";
 for (var i = 0; i < 64; i++)
     testStr += "(0/0), ";
 testStr += "].length";
 shouldBe(testStr, "64");
	// Copyright 2013 the V8 project authors. All rights reserved.
	// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions
	// are met:
	// 1. Redistributions of source code must retain the above copyright
	// notice, this list of conditions and the following disclaimer.
	// 2. Redistributions in binary form must reproduce the above copyright
	// notice, this list of conditions and the following disclaimer in the
	// documentation and/or other materials provided with the distribution.
	//
	// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
	// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
	// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
	// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	description(
	'Tests whether bytecode codegen properly handles temporaries.'
	);

	var a = true;
	a = false \|\| a;
	shouldBeTrue("a");

	var b = false;
	b = true && b;
	shouldBeFalse("b");

	function TestObject() {
	this.toString = function() { return this.test; }
	this.test = "FAIL";
	return this;
	}

	function assign_test1()
	{
	var testObject = new TestObject;
	var a = testObject;
	a.test = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test1()", "'PASS'");

	function assign_test2()
	{
	var testObject = new TestObject;
	var a = testObject;
	a = a.test = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test2()", "'PASS'");

	function assign_test3()
	{
	var testObject = new TestObject;
	var a = testObject;
	a.test = a = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test3()", "'PASS'");

	var testObject4 = new TestObject;
	var a4 = testObject4;
	a4.test = this.a4 = "PASS";

	shouldBe("testObject4.test", "'PASS'");

	var testObject5 = new TestObject;
	var a5 = testObject5;
	a5 = this.a5.test = "PASS";

	shouldBe("testObject5.test", "'PASS'");

	function assign_test6()
	{
	var testObject = new TestObject;
	var a = testObject;
	a["test"] = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test6()", "'PASS'");

	function assign_test7()
	{
	var testObject = new TestObject;
	var a = testObject;
	a = a["test"] = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test7()", "'PASS'");

	function assign_test8()
	{
	var testObject = new TestObject;
	var a = testObject;
	a["test"] = a = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test8()", "'PASS'");

	function assign_test9()
	{
	var testObject = new TestObject;
	var a = testObject;
	a["test"] = this.a = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test9()", "'PASS'");

	var testObject10 = new TestObject;
	var a10 = testObject10;
	a10 = this.a10["test"] = "PASS";

	shouldBe("testObject10.test", "'PASS'");

	function assign_test11()
	{
	var testObject = new TestObject;
	var a = testObject;
	a[a = "test"] = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test11()", "'PASS'");

	function assign_test12()
	{
	var test = "test";
	var testObject = new TestObject;
	var a = testObject;
	a[test] = "PASS";
	return testObject.test;
	}

	shouldBe("assign_test12()", "'PASS'");

	function assign_test13()
	{
	var testObject = new TestObject;
	var a = testObject;
	a.test = (a = "FAIL", "PASS");
	return testObject.test;
	}

	shouldBe("assign_test13()", "'PASS'");

	function assign_test14()
	{
	var testObject = new TestObject;
	var a = testObject;
	a["test"] = (a = "FAIL", "PASS");
	return testObject.test;
	}

	shouldBe("assign_test14()", "'PASS'");

	function assign_test15()
	{
	var test = "test";
	var testObject = new TestObject;
	var a = testObject;
	a[test] = (test = "FAIL", "PASS");
	return testObject.test;
	}

	shouldBe("assign_test15()", "'PASS'");

	function assign_test16()
	{
	var a = 1;
	a = (a = 2);
	return a;
	}

	shouldBe("assign_test16()", "2");

	var a17 = 1;
	a17 += (a17 += 1);

	shouldBe("a17", "3");

	function assign_test18()
	{
	var a = 1;
	a += (a += 1);
	return a;
	}

	shouldBe("assign_test18()", "3");

	var a19 = { b: 1 };
	a19.b += (a19.b += 1);

	shouldBe("a19.b", "3");

	function assign_test20()
	{
	var a = { b: 1 };
	a.b += (a.b += 1);
	return a.b;
	}

	shouldBe("assign_test20()", "3");

	var a21 = { b: 1 };
	a21["b"] += (a21["b"] += 1);

	shouldBe("a21['b']", "3");

	function assign_test22()
	{
	var a = { b: 1 };
	a["b"] += (a["b"] += 1);
	return a["b"];
	}

	shouldBe("assign_test22()", "3");

	function assign_test23()
	{
	var o = { b: 1 };
	var a = o;
	a.b += a = 2;
	return o.b;
	}

	shouldBe("assign_test23()", "3");

	function assign_test24()
	{
	var o = { b: 1 };
	var a = o;
	a["b"] += a = 2;
	return o["b"];
	}

	shouldBe("assign_test24()", "3");

	function assign_test25()
	{
	var o = { b: 1 };
	var a = o;
	a[a = "b"] += a = 2;
	return o["b"];
	}

	shouldBe("assign_test25()", "3");

	function assign_test26()
	{
	var o = { b: 1 };
	var a = o;
	var b = "b";
	a[b] += a = 2;
	return o["b"];
	}

	shouldBe("assign_test26()", "3");

	function assign_test27()
	{
	var o = { b: 1 };
	var a = o;
	a.b += (a = 100, 2);
	return o.b;
	}

	shouldBe("assign_test27()", "3");

	function assign_test28()
	{
	var o = { b: 1 };
	var a = o;
	a["b"] += (a = 100, 2);
	return o["b"];
	}

	shouldBe("assign_test28()", "3");

	function assign_test29()
	{
	var o = { b: 1 };
	var a = o;
	var b = "b";
	a[b] += (a = 100, 2);
	return o["b"];
	}

	shouldBe("assign_test29()", "3");

	function assign_test30()
	{
	var a = "foo";
	a += (a++);
	return a;
	}

	shouldBe("assign_test30()", "'fooNaN'");

	function assign_test31()
	{
	function result() { return "PASS"; }
	return (globalVar = result)()
	}

	shouldBe("assign_test31()", "'PASS'");

	function bracket_test1()
	{
	var o = [-1];
	var a = o[++o];
	return a;
	}

	shouldBe("bracket_test1()", "-1");

	function bracket_test2()
	{
	var o = [1];
	var a = o[--o];
	return a;
	}

	shouldBe("bracket_test2()", "1");

	function bracket_test3()
	{
	var o = [0];
	var a = o[o++];
	return a;
	}

	shouldBe("bracket_test3()", "0");

	function bracket_test4()
	{
	var o = [0];
	var a = o[o--];
	return a;
	}

	shouldBe("bracket_test4()", "0");

	function bracket_test5()
	{
	var o = [1];
	var a = o[o ^= 1];
	return a;
	}

	shouldBe("bracket_test5()", "1");

	function bracket_test6()
	{
	var o = { b: 1 }
	var b = o[o = { b: 2 }, "b"];
	return b;
	}

	shouldBe("bracket_test6()", "1");

	function mult_test1()
	{
	var a = 1;
	return a * (a = 2);
	}

	shouldBe("mult_test1()", "2");

	function mult_test2()
	{
	var a = 1;
	return a * ++a;
	}

	shouldBe("mult_test2()", "2");

	function mult_test3()
	{
	var a = 1;
	return a * (a += 1);
	}

	shouldBe("mult_test3()", "2");

	function div_test1()
	{
	var a = 1;
	return a / (a = 2);
	}

	shouldBe("div_test1()", "0.5");

	function div_test2()
	{
	var a = 1;
	return a / ++a;
	}

	shouldBe("div_test2()", "0.5");

	function div_test3()
	{
	var a = 1;
	return a / (a += 1);
	}

	shouldBe("div_test3()", "0.5");

	function mod_test1()
	{
	var a = 1;
	return a % (a = 2);
	}

	shouldBe("mod_test1()", "1");

	function mod_test2()
	{
	var a = 1;
	return a % ++a;
	}

	shouldBe("mod_test2()", "1");

	function mod_test3()
	{
	var a = 1;
	return a % (a += 1);
	}

	shouldBe("mod_test3()", "1");

	function add_test1()
	{
	var a = 1;
	return a + (a = 2);
	}

	shouldBe("add_test1()", "3");

	function add_test2()
	{
	var a = 1;
	return a + ++a;
	}

	shouldBe("add_test2()", "3");

	function add_test3()
	{
	var a = 1;
	return a + (a += 1);
	}

	shouldBe("add_test3()", "3");

	function sub_test1()
	{
	var a = 1;
	return a - (a = 2);
	}

	shouldBe("sub_test1()", "-1");

	function sub_test2()
	{
	var a = 1;
	return a - ++a;
	}

	shouldBe("sub_test2()", "-1");

	function sub_test3()
	{
	var a = 1;
	return a - (a += 1);
	}

	shouldBe("sub_test3()", "-1");

	function lshift_test1()
	{
	var a = 1;
	return a << (a = 2);
	}

	shouldBe("lshift_test1()", "4");

	function lshift_test2()
	{
	var a = 1;
	return a << ++a;
	}

	shouldBe("lshift_test2()", "4");

	function lshift_test3()
	{
	var a = 1;
	return a << (a += 1);
	}

	shouldBe("lshift_test3()", "4");

	function rshift_test1()
	{
	var a = 4;
	return a >> (a = 2);
	}

	shouldBe("rshift_test1()", "1");

	function rshift_test2()
	{
	var a = 2;
	return a >> --a;
	}

	shouldBe("rshift_test2()", "1");

	function rshift_test3()
	{
	var a = 2;
	return a >> (a -= 1);
	}

	shouldBe("rshift_test3()", "1");

	function urshift_test1()
	{
	var a = 4;
	return a >>> (a = 2);
	}

	shouldBe("urshift_test1()", "1");

	function urshift_test2()
	{
	var a = 2;
	return a >>> --a;
	}

	shouldBe("urshift_test2()", "1");

	function urshift_test3()
	{
	var a = 2;
	return a >>> (a -= 1);
	}

	shouldBe("urshift_test3()", "1");

	function less_test1()
	{
	var a = 1;
	return a < (a = 2);
	}

	shouldBeTrue("less_test1()");

	function less_test2()
	{
	var a = 1;
	return a < ++a;
	}

	shouldBeTrue("less_test2()");

	function less_test3()
	{
	var a = 1;
	return a < (a += 1);
	}

	shouldBeTrue("less_test3()");

	function greater_test1()
	{
	var a = 2;
	return a > (a = 1);
	}

	shouldBeTrue("greater_test1()");

	function greater_test2()
	{
	var a = 2;
	return a > --a;
	}

	shouldBeTrue("greater_test2()");

	function greater_test3()
	{
	var a = 2;
	return a > (a -= 1);
	}

	shouldBeTrue("greater_test3()");

	function lesseq_test1()
	{
	var a = 1;
	return a <= (a = 3, 2);
	}

	shouldBeTrue("lesseq_test1()");

	function lesseq_test2()
	{
	var a = 1;
	return a <= (++a, 1);
	}

	shouldBeTrue("lesseq_test2()");

	function lesseq_test3()
	{
	var a = 1;
	return a <= (a += 1, 1);
	}

	shouldBeTrue("lesseq_test3()");

	function greatereq_test1()
	{
	var a = 2;
	return a >= (a = 1, 2);
	}

	shouldBeTrue("greatereq_test1()");

	function greatereq_test2()
	{
	var a = 2;
	return a >= (--a, 2);
	}

	shouldBeTrue("greatereq_test2()");

	function greatereq_test3()
	{
	var a = 2;
	return a >= (a -= 1, 2);
	}

	shouldBeTrue("greatereq_test3()");

	function instanceof_test1()
	{
	var a = { };
	return a instanceof (a = 1, Object);
	}

	shouldBeTrue("instanceof_test1()");

	function instanceof_test2()
	{
	var a = { valueOf: function() { return 1; } };
	return a instanceof (++a, Object);
	}

	shouldBeTrue("instanceof_test2()");

	function instanceof_test3()
	{
	var a = { valueOf: function() { return 1; } };
	return a instanceof (a += 1, Object);
	}

	shouldBeTrue("instanceof_test3()");

	function in_test1()
	{
	var a = "a";
	return a in (a = "b", { a: 1 });
	}

	shouldBeTrue("in_test1()");

	function in_test2()
	{
	var a = { toString: function() { return "a"; }, valueOf: function() { return 1; } };
	return a in (++a, { a: 1 });
	}

	shouldBeTrue("in_test2()");

	function in_test3()
	{
	var a = { toString: function() { return "a"; }, valueOf: function() { return 1; } };
	return a in (a += 1, { a: 1 });
	}

	shouldBeTrue("in_test3()");

	function eq_test1()
	{
	var a = 1;
	return a == (a = 2);
	}

	shouldBeFalse("eq_test1()");

	function eq_test2()
	{
	var a = 1;
	return a == ++a;
	}

	shouldBeFalse("eq_test2()");

	function eq_test3()
	{
	var a = 1;
	return a == (a += 1);
	}

	shouldBeFalse("eq_test3()");

	function neq_test1()
	{
	var a = 1;
	return a != (a = 2);
	}

	shouldBeTrue("neq_test1()");

	function neq_test2()
	{
	var a = 1;
	return a != ++a;
	}

	shouldBeTrue("neq_test2()");

	function neq_test3()
	{
	var a = 1;
	return a != (a += 1);
	}

	shouldBeTrue("neq_test3()");

	function stricteq_test1()
	{
	var a = 1;
	return a === (a = 2);
	}

	shouldBeFalse("stricteq_test1()");

	function stricteq_test2()
	{
	var a = 1;
	return a === ++a;
	}

	shouldBeFalse("stricteq_test2()");

	function stricteq_test3()
	{
	var a = 1;
	return a === (a += 1);
	}

	shouldBeFalse("stricteq_test3()");

	function nstricteq_test1()
	{
	var a = 1;
	return a !== (a = 2);
	}

	shouldBeTrue("nstricteq_test1()");

	function nstricteq_test2()
	{
	var a = 1;
	return a !== ++a;
	}

	shouldBeTrue("nstricteq_test2()");

	function nstricteq_test3()
	{
	var a = 1;
	return a !== (a += 1);
	}

	shouldBeTrue("nstricteq_test3()");

	function bitand_test1()
	{
	var a = 1;
	return a & (a = 2);
	}

	shouldBe("bitand_test1()", "0");

	function bitand_test2()
	{
	var a = 1;
	return a & ++a;
	}

	shouldBe("bitand_test2()", "0");

	function bitand_test3()
	{
	var a = 1;
	return a & (a += 1);
	}

	shouldBe("bitand_test3()", "0");

	function bitor_test1()
	{
	var a = 1;
	return a \| (a = 2);
	}

	shouldBe("bitor_test1()", "3");

	function bitor_test2()
	{
	var a = 1;
	return a \| ++a;
	}

	shouldBe("bitor_test2()", "3");

	function bitor_test3()
	{
	var a = 1;
	return a \| (a += 1);
	}

	shouldBe("bitor_test3()", "3");

	function bitxor_test1()
	{
	var a = 1;
	return a ^ (a = 2);
	}

	shouldBe("bitxor_test1()", "3");

	function bitxor_test2()
	{
	var a = 1;
	return a ^ ++a;
	}

	shouldBe("bitxor_test2()", "3");

	function bitxor_test3()
	{
	var a = 1;
	return a ^ (a += 1);
	}

	shouldBe("bitxor_test3()", "3");

	function switch_test1_helper(a, b)
	{
	switch (a) {
	case b:
	break;
	default:
	break;
	}

	return b;
	}

	function switch_test1()
	{
	return switch_test1_helper(0, 1) == 1;
	}

	shouldBeTrue("switch_test1()");

	function switch_test2_helper(a, b)
	{
	var c = b;
	switch (a) {
	case c:
	break;
	default:
	break;
	}

	return c;
	}

	function switch_test2()
	{
	return switch_test2_helper(0, 1) == 1;
	}

	shouldBeTrue("switch_test2()");

	function switch_test3_helper(a)
	{
	switch (a) {
	case this:
	break;
	default:
	break;
	}

	return this;
	}

	function switch_test3()
	{
	return this == switch_test3_helper.call(this, 0);
	}

	shouldBeTrue("switch_test3()");

	function construct_test()
	{
	var c = [function(a) { this.a = a; }];

	function f()
	{
	return new c[0](true);
	}

	return f().a;
	}

	shouldBeTrue("construct_test()");
	var testStr = "[";
	for (var i = 0; i < 64; i++)
	testStr += "(0/0), ";
	testStr += "].length";
	shouldBe(testStr, "64");