Migrate more tests from blink repository.

test/webkit/fast/js/arguments.js

+// 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(
+"This test thoroughly checks the behaviour of the 'arguments' object."
+);
+
+function access_1(a, b, c)
+{
+    return arguments[0];
+}
+
+function access_2(a, b, c)
+{
+    return arguments[1];
+}
+
+function access_3(a, b, c)
+{
+    return arguments[2];
+}
+
+function access_4(a, b, c)
+{
+    return arguments[3];
+}
+
+function access_5(a, b, c)
+{
+    return arguments[4];
+}
+
+function argumentLengthIs5() {
+    arguments.length = 5;
+    return arguments.length;
+}
+
+function duplicateArgumentAndReturnLast_call(a) {
+    Array.prototype.push.call(arguments, a);
+    return arguments[1];
+}
+
+function duplicateArgumentAndReturnFirst_call(a) {
+    Array.prototype.push.call(arguments, a);
+    return arguments[0];
+}
+
+function duplicateArgumentAndReturnLast_apply(a) {
+    Array.prototype.push.apply(arguments, arguments);
+    return arguments[1];
+}
+
+function duplicateArgumentAndReturnFirst_apply(a) {
+    Array.prototype.push.apply(arguments, arguments);
+    return arguments[0];
+}
+
+shouldBe("access_1(1, 2, 3)", "1");
+shouldBe("access_2(1, 2, 3)", "2");
+shouldBe("access_3(1, 2, 3)", "3");
+shouldBe("access_4(1, 2, 3)", "undefined");
+shouldBe("access_5(1, 2, 3)", "undefined");
+
+shouldBe("access_1(1)", "1");
+shouldBe("access_2(1)", "undefined");
+shouldBe("access_3(1)", "undefined");
+shouldBe("access_4(1)", "undefined");
+shouldBe("access_5(1)", "undefined");
+
+shouldBe("access_1(1, 2, 3, 4, 5)", "1");
+shouldBe("access_2(1, 2, 3, 4, 5)", "2");
+shouldBe("access_3(1, 2, 3, 4, 5)", "3");
+shouldBe("access_4(1, 2, 3, 4, 5)", "4");
+shouldBe("access_5(1, 2, 3, 4, 5)", "5");
+
+shouldBe("argumentLengthIs5()", "5");
+shouldBe("argumentLengthIs5(1,2,3,4,5)", "5");
+shouldBe("argumentLengthIs5(1,2,3,4,5,6,7,8,9,10)", "5");
+shouldBe("duplicateArgumentAndReturnLast_call(1)", "1");
+shouldBe("duplicateArgumentAndReturnFirst_call(1)", "1");
+shouldBe("duplicateArgumentAndReturnLast_apply(1)", "1");
+shouldBe("duplicateArgumentAndReturnFirst_apply(1)", "1");
+
+function f(a, b, c)
+{
+    return arguments;
+}
+
+function tear_off_equal_access_1(a, b, c)
+{
+    return f(a, b, c)[0];
+}
+
+function tear_off_equal_access_2(a, b, c)
+{
+    return f(a, b, c)[1];
+}
+
+function tear_off_equal_access_3(a, b, c)
+{
+    return f(a, b, c)[2];
+}
+
+function tear_off_equal_access_4(a, b, c)
+{
+    return f(a, b, c)[3];
+}
+
+function tear_off_equal_access_5(a, b, c)
+{
+    return f(a, b, c)[4];
+}
+
+shouldBe("tear_off_equal_access_1(1, 2, 3)", "1");
+shouldBe("tear_off_equal_access_2(1, 2, 3)", "2");
+shouldBe("tear_off_equal_access_3(1, 2, 3)", "3");
+shouldBe("tear_off_equal_access_4(1, 2, 3)", "undefined");
+shouldBe("tear_off_equal_access_5(1, 2, 3)", "undefined");
+
+function tear_off_too_few_access_1(a)
+{
+    return f(a)[0];
+}
+
+function tear_off_too_few_access_2(a)
+{
+    return f(a)[1];
+}
+
+function tear_off_too_few_access_3(a)
+{
+    return f(a)[2];
+}
+
+function tear_off_too_few_access_4(a)
+{
+    return f(a)[3];
+}
+
+function tear_off_too_few_access_5(a)
+{
+    return f(a)[4];
+}
+
+shouldBe("tear_off_too_few_access_1(1)", "1");
+shouldBe("tear_off_too_few_access_2(1)", "undefined");
+shouldBe("tear_off_too_few_access_3(1)", "undefined");
+shouldBe("tear_off_too_few_access_4(1)", "undefined");
+shouldBe("tear_off_too_few_access_5(1)", "undefined");
+
+function tear_off_too_many_access_1(a, b, c, d, e)
+{
+    return f(a, b, c, d, e)[0];
+}
+
+function tear_off_too_many_access_2(a, b, c, d, e)
+{
+    return f(a, b, c, d, e)[1];
+}
+
+function tear_off_too_many_access_3(a, b, c, d, e)
+{
+    return f(a, b, c, d, e)[2];
+}
+
+function tear_off_too_many_access_4(a, b, c, d, e)
+{
+    return f(a, b, c, d, e)[3];
+}
+
+function tear_off_too_many_access_5(a, b, c, d, e)
+{
+    return f(a, b, c, d, e)[4];
+}
+
+shouldBe("tear_off_too_many_access_1(1, 2, 3, 4, 5)", "1");
+shouldBe("tear_off_too_many_access_2(1, 2, 3, 4, 5)", "2");
+shouldBe("tear_off_too_many_access_3(1, 2, 3, 4, 5)", "3");
+shouldBe("tear_off_too_many_access_4(1, 2, 3, 4, 5)", "4");
+shouldBe("tear_off_too_many_access_5(1, 2, 3, 4, 5)", "5");
+
+function live_1(a, b, c)
+{
+    arguments[0] = 1;
+    return a;
+}
+
+function live_2(a, b, c)
+{
+    arguments[1] = 2;
+    return b;
+}
+
+function live_3(a, b, c)
+{
+    arguments[2] = 3;
+    return c;
+}
+
+shouldBe("live_1(0, 2, 3)", "1");
+shouldBe("live_2(1, 0, 3)", "2");
+shouldBe("live_3(1, 2, 0)", "3");
+
+// Arguments that were not provided are not live
+shouldBe("live_1(0)", "1");
+shouldBe("live_2(1)", "undefined");
+shouldBe("live_3(1)", "undefined");
+
+shouldBe("live_1(0, 2, 3, 4, 5)", "1");
+shouldBe("live_2(1, 0, 3, 4, 5)", "2");
+shouldBe("live_3(1, 2, 0, 4, 5)", "3");
+
+function extra_args_modify_4(a, b, c)
+{
+    arguments[3] = 4;
+    return arguments[3];
+}
+
+function extra_args_modify_5(a, b, c)
+{
+    arguments[4] = 5;
+    return arguments[4];
+}
+
+shouldBe("extra_args_modify_4(1, 2, 3, 0, 5)", "4");
+shouldBe("extra_args_modify_5(1, 2, 3, 4, 0)", "5");
+
+function tear_off_live_1(a, b, c)
+{
+    var args = arguments;
+    return function()
+    {
+        args[0] = 1;
+        return a;
+    };
+}
+
+function tear_off_live_2(a, b, c)
+{
+    var args = arguments;
+    return function()
+    {
+        args[1] = 2;
+        return b;
+    };
+}
+
+function tear_off_live_3(a, b, c)
+{
+    var args = arguments;
+    return function()
+    {
+        args[2] = 3;
+        return c;
+    };
+}
+
+shouldBe("tear_off_live_1(0, 2, 3)()", "1");
+shouldBe("tear_off_live_2(1, 0, 3)()", "2");
+shouldBe("tear_off_live_3(1, 2, 0)()", "3");
+
+// Arguments that were not provided are not live
+shouldBe("tear_off_live_1(0)()", "1");
+shouldBe("tear_off_live_2(1)()", "undefined");
+shouldBe("tear_off_live_3(1)()", "undefined");
+
+shouldBe("tear_off_live_1(0, 2, 3, 4, 5)()", "1");
+shouldBe("tear_off_live_2(1, 0, 3, 4, 5)()", "2");
+shouldBe("tear_off_live_3(1, 2, 0, 4, 5)()", "3");
+
+function tear_off_extra_args_modify_4(a, b, c)
+{
+    return function()
+    {
+        arguments[3] = 4;
+        return arguments[3];
+    }
+}
+
+function tear_off_extra_args_modify_5(a, b, c)
+{
+    return function()
+    {
+        arguments[4] = 5;
+        return arguments[4];
+    }
+}
+
+shouldBe("tear_off_extra_args_modify_4(1, 2, 3, 0, 5)()", "4");
+shouldBe("tear_off_extra_args_modify_5(1, 2, 3, 4, 0)()", "5");
+
+function delete_1(a, b, c)
+{
+    delete arguments[0];
+    return arguments[0];
+}
+
+function delete_2(a, b, c)
+{
+    delete arguments[1];
+    return arguments[1];
+}
+
+function delete_3(a, b, c)
+{
+    delete arguments[2];
+    return arguments[2];
+}
+
+function delete_4(a, b, c)
+{
+    delete arguments[3];
+    return arguments[3];
+}
+
+function delete_5(a, b, c)
+{
+    delete arguments[4];
+    return arguments[4];
+}
+
+shouldBe("delete_1(1, 2, 3)", "undefined");
+shouldBe("delete_2(1, 2, 3)", "undefined");
+shouldBe("delete_3(1, 2, 3)", "undefined");
+shouldBe("delete_4(1, 2, 3)", "undefined");
+shouldBe("delete_5(1, 2, 3)", "undefined");
+
+shouldBe("delete_1(1)", "undefined");
+shouldBe("delete_2(1)", "undefined");
+shouldBe("delete_3(1)", "undefined");
+shouldBe("delete_4(1)", "undefined");
+shouldBe("delete_5(1)", "undefined");
+
+shouldBe("delete_1(1, 2, 3, 4, 5)", "undefined");
+shouldBe("delete_2(1, 2, 3, 4, 5)", "undefined");
+shouldBe("delete_3(1, 2, 3, 4, 5)", "undefined");
+shouldBe("delete_4(1, 2, 3, 4, 5)", "undefined");
+shouldBe("delete_5(1, 2, 3, 4, 5)", "undefined");
+
+function tear_off_delete_1(a, b, c)
+{
+    return function()
+    {
+        delete arguments[0];
+        return arguments[0];
+    };
+}
+
+function tear_off_delete_2(a, b, c)
+{
+    return function()
+    {
+        delete arguments[1];
+        return arguments[1];
+    };
+}
+
+function tear_off_delete_3(a, b, c)
+{
+    return function()
+    {
+        delete arguments[2];
+        return arguments[2];
+    };
+}
+
+function tear_off_delete_4(a, b, c)
+{
+    return function()
+    {
+        delete arguments[3];
+        return arguments[3];
+    };
+}
+
+function tear_off_delete_5(a, b, c)
+{
+    return function()
+    {
+        delete arguments[4];
+        return arguments[4];
+    };
+}
+
+shouldBe("tear_off_delete_1(1, 2, 3)()", "undefined");
+shouldBe("tear_off_delete_2(1, 2, 3)()", "undefined");
+shouldBe("tear_off_delete_3(1, 2, 3)()", "undefined");
+shouldBe("tear_off_delete_4(1, 2, 3)()", "undefined");
+shouldBe("tear_off_delete_5(1, 2, 3)()", "undefined");
+
+shouldBe("tear_off_delete_1(1)()", "undefined");
+shouldBe("tear_off_delete_2(1)()", "undefined");
+shouldBe("tear_off_delete_3(1)()", "undefined");
+shouldBe("tear_off_delete_4(1)()", "undefined");
+shouldBe("tear_off_delete_5(1)()", "undefined");
+
+shouldBe("tear_off_delete_1(1, 2, 3, 4, 5)()", "undefined");
+shouldBe("tear_off_delete_2(1, 2, 3, 4, 5)()", "undefined");
+shouldBe("tear_off_delete_3(1, 2, 3, 4, 5)()", "undefined");
+shouldBe("tear_off_delete_4(1, 2, 3, 4, 5)()", "undefined");
+shouldBe("tear_off_delete_5(1, 2, 3, 4, 5)()", "undefined");
+
+function delete_not_live_1(a, b, c)
+{
+    delete arguments[0];
+    return a;
+}
+
+function delete_not_live_2(a, b, c)
+{
+    delete arguments[1];
+    return b;
+}
+
+function delete_not_live_3(a, b, c)
+{
+    delete arguments[2];
+    return c;
+}
+
+shouldBe("delete_not_live_1(1, 2, 3)", "1");
+shouldBe("delete_not_live_2(1, 2, 3)", "2");
+shouldBe("delete_not_live_3(1, 2, 3)", "3");
+
+shouldBe("delete_not_live_1(1)", "1");
+shouldBe("delete_not_live_2(1)", "undefined");
+shouldBe("delete_not_live_3(1)", "undefined");
+
+shouldBe("delete_not_live_1(1, 2, 3, 4, 5)", "1");
+shouldBe("delete_not_live_2(1, 2, 3, 4, 5)", "2");
+shouldBe("delete_not_live_3(1, 2, 3, 4, 5)", "3");
+
+function tear_off_delete_not_live_1(a, b, c)
+{
+    return function()
+    {
+        delete arguments[0];
+        return a;
+    };
+}
+
+function tear_off_delete_not_live_2(a, b, c)
+{
+    return function ()
+    {
+        delete arguments[1];
+        return b;
+    };
+}
+
+function tear_off_delete_not_live_3(a, b, c)
+{
+    return function()
+    {
+        delete arguments[2];
+        return c;
+    };
+}
+
+shouldBe("tear_off_delete_not_live_1(1, 2, 3)()", "1");
+shouldBe("tear_off_delete_not_live_2(1, 2, 3)()", "2");
+shouldBe("tear_off_delete_not_live_3(1, 2, 3)()", "3");
+
+shouldBe("tear_off_delete_not_live_1(1)()", "1");
+shouldBe("tear_off_delete_not_live_2(1)()", "undefined");
+shouldBe("tear_off_delete_not_live_3(1)()", "undefined");
+
+shouldBe("tear_off_delete_not_live_1(1, 2, 3, 4, 5)()", "1");
+shouldBe("tear_off_delete_not_live_2(1, 2, 3, 4, 5)()", "2");
+shouldBe("tear_off_delete_not_live_3(1, 2, 3, 4, 5)()", "3");
+
+function access_after_delete_named_2(a, b, c)
+{
+    delete arguments[0];
+    return b;
+}
+
+function access_after_delete_named_3(a, b, c)
+{
+    delete arguments[0];
+    return c;
+}
+
+function access_after_delete_named_4(a, b, c)
+{
+    delete arguments[0];
+    return arguments[3];
+}
+
+shouldBe("access_after_delete_named_2(1, 2, 3)", "2");
+shouldBe("access_after_delete_named_3(1, 2, 3)", "3");
+shouldBe("access_after_delete_named_4(1, 2, 3)", "undefined");
+
+shouldBe("access_after_delete_named_2(1)", "undefined");
+shouldBe("access_after_delete_named_3(1)", "undefined");
+shouldBe("access_after_delete_named_4(1)", "undefined");
+
+shouldBe("access_after_delete_named_2(1, 2, 3, 4)", "2");
+shouldBe("access_after_delete_named_3(1, 2, 3, 4)", "3");
+shouldBe("access_after_delete_named_4(1, 2, 3, 4)", "4");
+
+function access_after_delete_extra_1(a, b, c)
+{
+    delete arguments[3];
+    return a;
+}
+
+function access_after_delete_extra_2(a, b, c)
+{
+    delete arguments[3];
+    return b;
+}
+
+function access_after_delete_extra_3(a, b, c)
+{
+    delete arguments[3];
+    return c;
+}
+
+function access_after_delete_extra_5(a, b, c)
+{
+    delete arguments[3];
+    return arguments[4];
+}
+
+shouldBe("access_after_delete_extra_1(1, 2, 3)", "1");
+shouldBe("access_after_delete_extra_2(1, 2, 3)", "2");
+shouldBe("access_after_delete_extra_3(1, 2, 3)", "3");
+shouldBe("access_after_delete_extra_5(1, 2, 3)", "undefined");
+
+shouldBe("access_after_delete_extra_1(1)", "1");
+shouldBe("access_after_delete_extra_2(1)", "undefined");
+shouldBe("access_after_delete_extra_3(1)", "undefined");
+shouldBe("access_after_delete_extra_5(1)", "undefined");
+
+shouldBe("access_after_delete_extra_1(1, 2, 3, 4, 5)", "1");
+shouldBe("access_after_delete_extra_2(1, 2, 3, 4, 5)", "2");
+shouldBe("access_after_delete_extra_3(1, 2, 3, 4, 5)", "3");
+shouldBe("access_after_delete_extra_5(1, 2, 3, 4, 5)", "5");
+
+function argumentsParam(arguments)
+{
+    return arguments;
+}
+shouldBeTrue("argumentsParam(true)");
+
+var argumentsFunctionConstructorParam = new Function("arguments", "return arguments;");
+shouldBeTrue("argumentsFunctionConstructorParam(true)");
+
+function argumentsVarUndefined()
+{
+    var arguments;
+    return String(arguments);
+}
+shouldBe("argumentsVarUndefined()", "'[object Arguments]'");
+
+function argumentsConstUndefined()
+{
+    const arguments;
+    return String(arguments);
+}
+shouldBe("argumentsConstUndefined()", "'[object Arguments]'");
+
+function argumentCalleeInException() {
+    try {
+        throw "";
+    } catch (e) {
+        return arguments.callee;
+    }
+}
+shouldBe("argumentCalleeInException()", "argumentCalleeInException")
+
+function shadowedArgumentsApply(arguments) {
+    return function(a){ return a; }.apply(null, arguments);
+}
+
+function shadowedArgumentsLength(arguments) {
+    return arguments.length;
+}
+
+function shadowedArgumentsCallee(arguments) {
+    return arguments.callee;
+}
+
+function shadowedArgumentsIndex(arguments) {
+    return arguments[0]
+}
+
+shouldBeTrue("shadowedArgumentsApply([true])");
+shouldBe("shadowedArgumentsLength([])", '0');
+shouldThrow("shadowedArgumentsLength()");
+shouldBeUndefined("shadowedArgumentsCallee([])");
+shouldBeTrue("shadowedArgumentsIndex([true])");
+
+descriptor = (function(){ return Object.getOwnPropertyDescriptor(arguments, 1); })("zero","one","two");
+shouldBe("descriptor.value", '"one"');
+shouldBe("descriptor.writable", 'true');
+shouldBe("descriptor.enumerable", 'true');
+shouldBe("descriptor.configurable", 'true');
+
+// Test cases for [[DefineOwnProperty]] applied to the arguments object.
+(function(a0,a1,a2,a3){
+    Object.defineProperties(arguments, {
+        1: { get: function(){ return 201; } },
+        2: { value: 202, writable: false },
+        3: { writable: false },
+    });
+
+    // Test a0 is a live mapped argument.
+    shouldBeTrue(String( a0 === 100 ));
+    shouldBeTrue(String( arguments[0] === 100 ));
+    a0 = 300;
+    shouldBeTrue(String( a0 === 300 ));
+    shouldBeTrue(String( arguments[0] === 300 ));
+    arguments[0] = 400;
+    shouldBeTrue(String( a0 === 400 ));
+    shouldBeTrue(String( arguments[0] === 400 ));
+
+    // When a1 is redefined as an accessor, it is no longer live.
+    shouldBeTrue(String( a1 === 101 ));
+    shouldBeTrue(String( arguments[1] === 201 ));
+    a1 = 301;
+    shouldBeTrue(String( a1 === 301 ));
+    shouldBeTrue(String( arguments[1] === 201 ));
+    arguments[1] = 401;
+    shouldBeTrue(String( a1 === 301 ));
+    shouldBeTrue(String( arguments[1] === 201 ));
+
+    // When a2 is made read-only the value is set, but it is no longer live.
+    // (per 10.6 [[DefineOwnProperty]] 5.b.ii.1)
+    shouldBeTrue(String( a2 === 202 ));
+    shouldBeTrue(String( arguments[2] === 202 ));
+    a2 = 302;
+    shouldBeTrue(String( a2 === 302 ));
+    shouldBeTrue(String( arguments[2] === 202 ));
+    arguments[2] = 402;
+    shouldBeTrue(String( a2 === 302 ));
+    shouldBeTrue(String( arguments[2] === 202 ));
+
+    // When a3 is made read-only, it is no longer live.
+    // (per 10.6 [[DefineOwnProperty]] 5.b.ii.1)
+    shouldBeTrue(String( a3 === 103 ));
+    shouldBeTrue(String( arguments[3] === 103 ));
+    a3 = 303;
+    shouldBeTrue(String( a3 === 303 ));
+    shouldBeTrue(String( arguments[3] === 103 ));
+    arguments[3] = 403;
+    shouldBeTrue(String( a3 === 303 ));
+    shouldBeTrue(String( arguments[3] === 103 ));
+
+})(100,101,102,103);
+
+// Test cases for [[DefineOwnProperty]] applied to the arguments object.
+(function(arg){
+    shouldBeTrue(String( Object.getOwnPropertyDescriptor(arguments, 0).writable ));
+    shouldBeTrue(String( Object.getOwnPropertyDescriptor(arguments, 0).enumerable ));
+    Object.defineProperty(arguments, 0, { writable: false });
+    shouldBeFalse(String( Object.getOwnPropertyDescriptor(arguments, 0).writable ));
+    shouldBeTrue(String( Object.getOwnPropertyDescriptor(arguments, 0).enumerable ));
+    Object.defineProperty(arguments, 0, { enumerable: false });
+    shouldBeFalse(String( Object.getOwnPropertyDescriptor(arguments, 0).writable ));
+    shouldBeFalse(String( Object.getOwnPropertyDescriptor(arguments, 0).enumerable ));
+
+    delete arguments[1];
+    shouldBeUndefined(String( Object.getOwnPropertyDescriptor(arguments, 1) ));
+    Object.defineProperty(arguments, 1, { writable: true });
+    shouldBeTrue(String( Object.getOwnPropertyDescriptor(arguments, 1).writable ));
+    shouldBeFalse(String( Object.getOwnPropertyDescriptor(arguments, 1).enumerable ));
+})(0,1);