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Diffstat (limited to 'js/src/tests/ecma/extensions/11.6.1-3.js')
-rw-r--r-- | js/src/tests/ecma/extensions/11.6.1-3.js | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/js/src/tests/ecma/extensions/11.6.1-3.js b/js/src/tests/ecma/extensions/11.6.1-3.js new file mode 100644 index 000000000..48dbaf4f7 --- /dev/null +++ b/js/src/tests/ecma/extensions/11.6.1-3.js @@ -0,0 +1,103 @@ +/* -*- 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: 11.6.1-3.js + ECMA Section: 11.6.1 The addition operator ( + ) + Description: + + The addition operator either performs string concatenation or numeric + addition. + + The production AdditiveExpression : AdditiveExpression + MultiplicativeExpression + is evaluated as follows: + + 1. Evaluate AdditiveExpression. + 2. Call GetValue(Result(1)). + 3. Evaluate MultiplicativeExpression. + 4. Call GetValue(Result(3)). + 5. Call ToPrimitive(Result(2)). + 6. Call ToPrimitive(Result(4)). + 7. If Type(Result(5)) is String or Type(Result(6)) is String, go to step 12. + (Note that this step differs from step 3 in the algorithm for comparison + for the relational operators in using or instead of and.) + 8. Call ToNumber(Result(5)). + 9. Call ToNumber(Result(6)). + 10. Apply the addition operation to Result(8) and Result(9). See the discussion below (11.6.3). + 11. Return Result(10). + 12. Call ToString(Result(5)). + 13. Call ToString(Result(6)). + 14. Concatenate Result(12) followed by Result(13). + 15. Return Result(14). + + Note that no hint is provided in the calls to ToPrimitive in steps 5 and 6. + All native ECMAScript objects except Date objects handle the absence of a + hint as if the hint Number were given; Date objects handle the absence of a + hint as if the hint String were given. Host objects may handle the absence + of a hint in some other manner. + + This test does only covers cases where the Additive or Mulplicative expression + is a Date. + + Author: christine@netscape.com + Date: 12 november 1997 +*/ +var SECTION = "11.6.1-3"; +var VERSION = "ECMA_1"; +startTest(); + +writeHeaderToLog( SECTION + " The Addition operator ( + )"); + +// tests for a boolean primitive and a boolean object, and +// "MyValuelessObject", where the value is set in the object's +// prototype, not the object itself. + +var DATE1 = new Date(); + +var MYOB1 = new MyObject( DATE1 ); +var MYOB2 = new MyValuelessObject( DATE1 ); +var MYOB3 = new MyProtolessObject( DATE1 ); +var MYOB4 = new MyProtoValuelessObject( DATE1 ); + +new TestCase( SECTION, + "MYOB2 = new MyValuelessObject(DATE1); MYOB3 + 'string'", + DATE1.toString() + "string", + MYOB2 + 'string' ); + +new TestCase( SECTION, + "MYOB2 = new MyValuelessObject(DATE1); MYOB3 + new String('string')", + DATE1.toString() + "string", + MYOB2 + new String('string') ); +/* + new TestCase( SECTION, + "MYOB3 = new MyProtolessObject(DATE1); MYOB3 + new Boolean(true)", + DATE1.toString() + "true", + MYOB3 + new Boolean(true) ); +*/ + +test(); + +function MyProtoValuelessObject() { + this.valueOf = new Function ( "" ); + this.__proto__ = null; +} +function MyProtolessObject( value ) { + this.valueOf = new Function( "return this.value" ); + this.__proto__ = null; + this.value = value; +} +function MyValuelessObject(value) { + this.__proto__ = new MyPrototypeObject(value); +} +function MyPrototypeObject(value) { + this.valueOf = new Function( "return this.value;" ); + this.toString = new Function( "return (this.value + '');" ); + this.value = value; +} +function MyObject( value ) { + this.valueOf = new Function( "return this.value" ); + this.value = value; +} |