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Diffstat (limited to 'JavaScriptCore/tests/mozilla/ecma/Statements/12.10-1.js')
-rw-r--r-- | JavaScriptCore/tests/mozilla/ecma/Statements/12.10-1.js | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/JavaScriptCore/tests/mozilla/ecma/Statements/12.10-1.js b/JavaScriptCore/tests/mozilla/ecma/Statements/12.10-1.js new file mode 100644 index 0000000..cf33b0a --- /dev/null +++ b/JavaScriptCore/tests/mozilla/ecma/Statements/12.10-1.js @@ -0,0 +1,151 @@ +/* The contents of this file are subject to the Netscape Public + * License Version 1.1 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.mozilla.org/NPL/ + * + * Software distributed under the License is distributed on an "AS + * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or + * implied. See the License for the specific language governing + * rights and limitations under the License. + * + * The Original Code is Mozilla Communicator client code, released March + * 31, 1998. + * + * The Initial Developer of the Original Code is Netscape Communications + * Corporation. Portions created by Netscape are + * Copyright (C) 1998 Netscape Communications Corporation. All + * Rights Reserved. + * + * Contributor(s): + * + */ +/** + File Name: 12.10-1.js + ECMA Section: 12.10 The with statement + Description: + WithStatement : + with ( Expression ) Statement + + The with statement adds a computed object to the front of the scope chain + of the current execution context, then executes a statement with this + augmented scope chain, then restores the scope chain. + + Semantics + + The production WithStatement : with ( Expression ) Statement is evaluated + as follows: + 1. Evaluate Expression. + 2. Call GetValue(Result(1)). + 3. Call ToObject(Result(2)). + 4. Add Result(3) to the front of the scope chain. + 5. Evaluate Statement using the augmented scope chain from step 4. + 6. Remove Result(3) from the front of the scope chain. + 7. Return Result(5). + + Discussion + Note that no matter how control leaves the embedded Statement, whether + normally or by some form of abrupt completion, the scope chain is always + restored to its former state. + + Author: christine@netscape.com + Date: 12 november 1997 +*/ + + var SECTION = "12.10-1"; + var VERSION = "ECMA_1"; + startTest(); + var TITLE = "The with statment"; + + writeHeaderToLog( SECTION + " "+ TITLE); + + var testcases = getTestCases(); + + test(); + +function test() { + for ( tc=0; tc < testcases.length; tc++ ) { + testcases[tc].passed = writeTestCaseResult( + testcases[tc].expect, + testcases[tc].actual, + testcases[tc].description +" = "+ + testcases[tc].actual ); + + testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; + } + stopTest(); + return ( testcases ); +} +function getTestCases() { + var array = new Array(); + var item = 0; + + // although the scope chain changes, the this value is immutable for a given + // execution context. + + array[item++] = new TestCase( SECTION, + "with( new Number() ) { this +'' }", + "[object global]", + eval("with( new Number() ) { this +'' }") ); + + // the object's functions and properties should override those of the + // global object. + + array[item++] = new TestCase( + SECTION, + "var MYOB = new WithObject(true); with (MYOB) { parseInt() }", + true, + eval("var MYOB = new WithObject(true); with (MYOB) { parseInt() }") ); + + array[item++] = new TestCase( + SECTION, + "var MYOB = new WithObject(false); with (MYOB) { NaN }", + false, + eval("var MYOB = new WithObject(false); with (MYOB) { NaN }") ); + + array[item++] = new TestCase( + SECTION, + "var MYOB = new WithObject(NaN); with (MYOB) { Infinity }", + Number.NaN, + eval("var MYOB = new WithObject(NaN); with (MYOB) { Infinity }") ); + + array[item++] = new TestCase( + SECTION, + "var MYOB = new WithObject(false); with (MYOB) { }; Infinity", + Number.POSITIVE_INFINITY, + eval("var MYOB = new WithObject(false); with (MYOB) { }; Infinity") ); + + + array[item++] = new TestCase( + SECTION, + "var MYOB = new WithObject(0); with (MYOB) { delete Infinity; Infinity }", + Number.POSITIVE_INFINITY, + eval("var MYOB = new WithObject(0); with (MYOB) { delete Infinity; Infinity }") ); + + // let us leave the with block via a break. + + array[item++] = new TestCase( + SECTION, + "var MYOB = new WithObject(0); while (true) { with (MYOB) { Infinity; break; } } Infinity", + Number.POSITIVE_INFINITY, + eval("var MYOB = new WithObject(0); while (true) { with (MYOB) { Infinity; break; } } Infinity") ); + + return ( array ); +} +function WithObject( value ) { + this.prop1 = 1; + this.prop2 = new Boolean(true); + this.prop3 = "a string"; + this.value = value; + + // now we will override global functions + + this.parseInt = new Function( "return this.value" ); + this.NaN = value; + this.Infinity = value; + this.unescape = new Function( "return this.value" ); + this.escape = new Function( "return this.value" ); + this.eval = new Function( "return this.value" ); + this.parseFloat = new Function( "return this.value" ); + this.isNaN = new Function( "return this.value" ); + this.isFinite = new Function( "return this.value" ); +} |