| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| |
| /** |
| File Name: 11.3.2.js |
| ECMA Section: 11.3.2 Postfix decrement operator |
| Description: |
| |
| 11.3.2 Postfix decrement operator |
| |
| The production MemberExpression : MemberExpression -- is evaluated as follows: |
| 1. Evaluate MemberExpression. |
| 2. Call GetValue(Result(1)). |
| 3. Call ToNumber(Result(2)). |
| 4. Subtract the value 1 from Result(3), using the same rules as for the - |
| operator (section 0). |
| 5. Call PutValue(Result(1), Result(4)). |
| 6. Return Result(3). |
| |
| Author: christine@netscape.com |
| Date: 12 november 1997 |
| */ |
| var SECTION = "11.3.2"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| |
| writeHeaderToLog( SECTION + " Postfix decrement operator"); |
| |
| // special numbers |
| new TestCase( SECTION, "var MYVAR; MYVAR--", NaN, eval("var MYVAR; MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR= void 0; MYVAR--", NaN, eval("var MYVAR=void 0; MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=null; MYVAR--", 0, eval("var MYVAR=null; MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=true; MYVAR--", 1, eval("var MYVAR=true; MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=false; MYVAR--", 0, eval("var MYVAR=false; MYVAR--") ); |
| |
| // verify return value |
| |
| new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;MYVAR--", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=Number.NaN;MYVAR--", Number.NaN, eval("var MYVAR=Number.NaN;MYVAR--") ); |
| |
| // verify value of variable |
| |
| new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;MYVAR--;MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--;MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=Number.NaN;MYVAR--;MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;MYVAR--;MYVAR") ); |
| |
| // number primitives |
| new TestCase( SECTION, "var MYVAR=0;MYVAR--", 0, eval("var MYVAR=0;MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=0.2345;MYVAR--", 0.2345, eval("var MYVAR=0.2345;MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=-0.2345;MYVAR--", -0.2345, eval("var MYVAR=-0.2345;MYVAR--") ); |
| |
| // verify value of variable |
| |
| new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=0.2345;MYVAR--;MYVAR", -0.7655, eval("var MYVAR=0.2345;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=-0.2345;MYVAR--;MYVAR", -1.2345, eval("var MYVAR=-0.2345;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=0;MYVAR--;MYVAR", -1, eval("var MYVAR=0;MYVAR--;MYVAR") ); |
| |
| // boolean values |
| // verify return value |
| |
| new TestCase( SECTION, "var MYVAR=true;MYVAR--", 1, eval("var MYVAR=true;MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=false;MYVAR--", 0, eval("var MYVAR=false;MYVAR--") ); |
| // verify value of variable |
| |
| new TestCase( SECTION, "var MYVAR=true;MYVAR--;MYVAR", 0, eval("var MYVAR=true;MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=false;MYVAR--;MYVAR", -1, eval("var MYVAR=false;MYVAR--;MYVAR") ); |
| |
| // boolean objects |
| // verify return value |
| |
| new TestCase( SECTION, "var MYVAR=new Boolean(true);MYVAR--", 1, eval("var MYVAR=true;MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=new Boolean(false);MYVAR--", 0, eval("var MYVAR=false;MYVAR--") ); |
| // verify value of variable |
| |
| new TestCase( SECTION, "var MYVAR=new Boolean(true);MYVAR--;MYVAR", 0, eval("var MYVAR=new Boolean(true);MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=new Boolean(false);MYVAR--;MYVAR", -1, eval("var MYVAR=new Boolean(false);MYVAR--;MYVAR") ); |
| |
| // string primitives |
| new TestCase( SECTION, "var MYVAR='string';MYVAR--", Number.NaN, eval("var MYVAR='string';MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR='12345';MYVAR--", 12345, eval("var MYVAR='12345';MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR='-12345';MYVAR--", -12345, eval("var MYVAR='-12345';MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR='0Xf';MYVAR--", 15, eval("var MYVAR='0Xf';MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR='077';MYVAR--", 77, eval("var MYVAR='077';MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=''; MYVAR--", 0, eval("var MYVAR='';MYVAR--") ); |
| |
| // verify value of variable |
| |
| new TestCase( SECTION, "var MYVAR='string';MYVAR--;MYVAR", Number.NaN, eval("var MYVAR='string';MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR='12345';MYVAR--;MYVAR", 12344, eval("var MYVAR='12345';MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR='-12345';MYVAR--;MYVAR", -12346, eval("var MYVAR='-12345';MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR='0xf';MYVAR--;MYVAR", 14, eval("var MYVAR='0xf';MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR='077';MYVAR--;MYVAR", 76, eval("var MYVAR='077';MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR='';MYVAR--;MYVAR", -1, eval("var MYVAR='';MYVAR--;MYVAR") ); |
| |
| // string objects |
| new TestCase( SECTION, "var MYVAR=new String('string');MYVAR--", Number.NaN, eval("var MYVAR=new String('string');MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=new String('12345');MYVAR--", 12345, eval("var MYVAR=new String('12345');MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=new String('-12345');MYVAR--", -12345, eval("var MYVAR=new String('-12345');MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=new String('0Xf');MYVAR--", 15, eval("var MYVAR=new String('0Xf');MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=new String('077');MYVAR--", 77, eval("var MYVAR=new String('077');MYVAR--") ); |
| new TestCase( SECTION, "var MYVAR=new String(''); MYVAR--", 0, eval("var MYVAR=new String('');MYVAR--") ); |
| |
| // verify value of variable |
| |
| new TestCase( SECTION, "var MYVAR=new String('string');MYVAR--;MYVAR", Number.NaN, eval("var MYVAR=new String('string');MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=new String('12345');MYVAR--;MYVAR", 12344, eval("var MYVAR=new String('12345');MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=new String('-12345');MYVAR--;MYVAR", -12346, eval("var MYVAR=new String('-12345');MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=new String('0xf');MYVAR--;MYVAR", 14, eval("var MYVAR=new String('0xf');MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=new String('077');MYVAR--;MYVAR", 76, eval("var MYVAR=new String('077');MYVAR--;MYVAR") ); |
| new TestCase( SECTION, "var MYVAR=new String('');MYVAR--;MYVAR", -1, eval("var MYVAR=new String('');MYVAR--;MYVAR") ); |
| |
| test(); |