jlaskey@3: /*
jlaskey@7:  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
jlaskey@3:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
attila@962:  *
jlaskey@3:  * This code is free software; you can redistribute it and/or modify it
jlaskey@3:  * under the terms of the GNU General Public License version 2 only, as
jlaskey@3:  * published by the Free Software Foundation.
attila@962:  *
jlaskey@3:  * This code is distributed in the hope that it will be useful, but WITHOUT
jlaskey@3:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jlaskey@3:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jlaskey@3:  * version 2 for more details (a copy is included in the LICENSE file that
jlaskey@3:  * accompanied this code).
attila@962:  *
jlaskey@3:  * You should have received a copy of the GNU General Public License version
jlaskey@3:  * 2 along with this work; if not, write to the Free Software Foundation,
jlaskey@3:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
attila@962:  *
jlaskey@3:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jlaskey@3:  * or visit www.oracle.com if you need additional information or have any
jlaskey@3:  * questions.
jlaskey@3:  */
jlaskey@3: 
jlaskey@3: /**
jlaskey@3:  * NASHORN-207 : implement strict mode
jlaskey@3:  *
jlaskey@3:  * @test
jlaskey@3:  * @run
jlaskey@3:  */
jlaskey@3: 
jlaskey@3: 'use strict';
jlaskey@3: 
jlaskey@3: // cannot delete a variable
jlaskey@3: try {
jlaskey@3:     eval("var fooVar = 3; delete fooVar;");
jlaskey@3:     fail("#1 should have thrown SyntaxError");
jlaskey@3: } catch (e) {
jlaskey@3:     if (! (e instanceof SyntaxError)) {
jlaskey@3:         fail("#2 SyntaxError expected but got " + e);
attila@962:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // cannot delete function parameter variable
jlaskey@3: try {
jlaskey@3:     eval("function func(a) { delete a; }; func(2);");
jlaskey@3:     fail("#3 should have thrown SyntaxError");
jlaskey@3: } catch(e) {
jlaskey@3:     if (! (e instanceof SyntaxError)) {
jlaskey@3:         fail("#4 SyntaxError expected but got " + e);
attila@962:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // assignment can't be used to define as new variable
jlaskey@3: try {
jlaskey@3:     bar = 3;
jlaskey@3:     fail("#5 should have thrown ReferenceError");
jlaskey@3: } catch (e) {
jlaskey@3:     if (! (e instanceof ReferenceError)) {
jlaskey@3:         fail("#6 ReferenceError expected but got " + e);
jlaskey@3:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // repeated property definition is not allowed in an object literal
jlaskey@3: try {
jlaskey@3:     eval("var obj = { foo: 33, foo: 44 }");
jlaskey@3:     fail("#7 should have thrown SyntaxError");
jlaskey@3: } catch(e) {
jlaskey@3:     if (! (e instanceof SyntaxError)) {
jlaskey@3:         fail("#8 SyntaxError expected but got " + e);
jlaskey@3:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // can't assign to "eval"
jlaskey@3: try {
jlaskey@3:     eval("var eval = 3");
jlaskey@3:     fail("#9 should have thrown SyntaxError");
jlaskey@3: } catch(e) {
jlaskey@3:     if (! (e instanceof SyntaxError)) {
jlaskey@3:         fail("#10 SyntaxError expected but got " + e);
jlaskey@3:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // can't assign to 'arguments'
jlaskey@3: try {
jlaskey@3:     eval("function func() { arguments = 34; }");
jlaskey@3:     fail("#11 should have thrown SyntaxError");
jlaskey@3: } catch(e) {
jlaskey@3:     if (! (e instanceof SyntaxError)) {
jlaskey@3:         fail("#12 SyntaxError expected but got " + e);
jlaskey@3:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // can't delete non-configurable properties
jlaskey@3: try {
jlaskey@3:     delete Object.prototype;
jlaskey@3:     fail("#13 should have thrown TypeError");
jlaskey@3: } catch (e) {
jlaskey@3:     if (! (e instanceof TypeError)) {
jlaskey@3:         fail("#14 TypeError expected but got " + e);
jlaskey@3:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // cannot re-use function parameter name
jlaskey@3: try {
jlaskey@3:     eval("function func(a, a) {}");
jlaskey@3:     fail("#15 should have thrown SyntaxError");
jlaskey@3: } catch (e) {
jlaskey@3:     if (! (e instanceof SyntaxError)) {
jlaskey@3:         fail("#16 SyntaxError expected but got " + e);
jlaskey@3:     }
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // strict eval creates own scope and caller's scope is untouched!
jlaskey@3: eval("var myVar = 4;");
jlaskey@3: if (typeof myVar !== 'undefined') {
jlaskey@3:     fail("#17 eval var 'myVar' created in global scope");
jlaskey@3: }
jlaskey@3: 
jlaskey@3: eval("function myNewFunc() {}");
jlaskey@3: if (typeof myNewFunc !== 'undefined') {
jlaskey@3:     fail("#18 eval function 'myNewFunc' created in global scope");
jlaskey@3: }
jlaskey@3: 
jlaskey@3: // no octal in strict mode
jlaskey@3: try {
jlaskey@3:     eval("var x = 010;");
jlaskey@3:     fail("#19 should have thrown SyntaxError");
jlaskey@3: } catch (e) {
jlaskey@3:     if (! (e instanceof SyntaxError)) {
jlaskey@3:         fail("#20 SyntaxError expected but got " + e);
jlaskey@3:     }
jlaskey@3: }