js/src/tests/ecma/Expressions/11.6.1-1.js@6474c204b198 (annotated)
js/src/tests/ecma/Expressions/11.6.1-1.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | |
| michael@0 | 7 | /** |
| michael@0 | 8 | File Name: 11.6.1-1.js |
| michael@0 | 9 | ECMA Section: 11.6.1 The addition operator ( + ) |
| michael@0 | 10 | Description: |
| michael@0 | 11 | |
| michael@0 | 12 | The addition operator either performs string concatenation or numeric |
| michael@0 | 13 | addition. |
| michael@0 | 14 | |
| michael@0 | 15 | The production AdditiveExpression : AdditiveExpression + MultiplicativeExpression |
| michael@0 | 16 | is evaluated as follows: |
| michael@0 | 17 | |
| michael@0 | 18 | 1. Evaluate AdditiveExpression. |
| michael@0 | 19 | 2. Call GetValue(Result(1)). |
| michael@0 | 20 | 3. Evaluate MultiplicativeExpression. |
| michael@0 | 21 | 4. Call GetValue(Result(3)). |
| michael@0 | 22 | 5. Call ToPrimitive(Result(2)). |
| michael@0 | 23 | 6. Call ToPrimitive(Result(4)). |
| michael@0 | 24 | 7. If Type(Result(5)) is String or Type(Result(6)) is String, go to step 12. |
| michael@0 | 25 | (Note that this step differs from step 3 in the algorithm for comparison |
| michael@0 | 26 | for the relational operators in using or instead of and.) |
| michael@0 | 27 | 8. Call ToNumber(Result(5)). |
| michael@0 | 28 | 9. Call ToNumber(Result(6)). |
| michael@0 | 29 | 10. Apply the addition operation to Result(8) and Result(9). See the discussion below (11.6.3). |
| michael@0 | 30 | 11. Return Result(10). |
| michael@0 | 31 | 12. Call ToString(Result(5)). |
| michael@0 | 32 | 13. Call ToString(Result(6)). |
| michael@0 | 33 | 14. Concatenate Result(12) followed by Result(13). |
| michael@0 | 34 | 15. Return Result(14). |
| michael@0 | 35 | |
| michael@0 | 36 | Note that no hint is provided in the calls to ToPrimitive in steps 5 and 6. |
| michael@0 | 37 | All native ECMAScript objects except Date objects handle the absence of a |
| michael@0 | 38 | hint as if the hint Number were given; Date objects handle the absence of a |
| michael@0 | 39 | hint as if the hint String were given. Host objects may handle the absence |
| michael@0 | 40 | of a hint in some other manner. |
| michael@0 | 41 | |
| michael@0 | 42 | This test does not cover cases where the Additive or Mulplicative expression |
| michael@0 | 43 | ToPrimitive is string. |
| michael@0 | 44 | |
| michael@0 | 45 | Author: christine@netscape.com |
| michael@0 | 46 | Date: 12 november 1997 |
| michael@0 | 47 | */ |
| michael@0 | 48 | var SECTION = "11.6.1-1"; |
| michael@0 | 49 | var VERSION = "ECMA_1"; |
| michael@0 | 50 | startTest(); |
| michael@0 | 51 | |
| michael@0 | 52 | writeHeaderToLog( SECTION + " The Addition operator ( + )"); |
| michael@0 | 53 | |
| michael@0 | 54 | // tests for boolean primitive, boolean object, Object object, a "MyObject" whose value is |
| michael@0 | 55 | // a boolean primitive and a boolean object. |
| michael@0 | 56 | |
| michael@0 | 57 | new TestCase( SECTION, |
| michael@0 | 58 | "var EXP_1 = true; var EXP_2 = false; EXP_1 + EXP_2", |
| michael@0 | 59 | 1, |
| michael@0 | 60 | eval("var EXP_1 = true; var EXP_2 = false; EXP_1 + EXP_2") ); |
| michael@0 | 61 | |
| michael@0 | 62 | new TestCase( SECTION, |
| michael@0 | 63 | "var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 + EXP_2", |
| michael@0 | 64 | 1, |
| michael@0 | 65 | eval("var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 + EXP_2") ); |
| michael@0 | 66 | |
| michael@0 | 67 | new TestCase( SECTION, |
| michael@0 | 68 | "var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 + EXP_2", |
| michael@0 | 69 | 1, |
| michael@0 | 70 | eval("var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 + EXP_2") ); |
| michael@0 | 71 | |
| michael@0 | 72 | new TestCase( SECTION, |
| michael@0 | 73 | "var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2", |
| michael@0 | 74 | 1, |
| michael@0 | 75 | eval("var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2") ); |
| michael@0 | 76 | |
| michael@0 | 77 | new TestCase( SECTION, |
| michael@0 | 78 | "var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 + EXP_2", |
| michael@0 | 79 | 1, |
| michael@0 | 80 | eval("var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 + EXP_2") ); |
| michael@0 | 81 | |
| michael@0 | 82 | new TestCase( SECTION, |
| michael@0 | 83 | "var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2", |
| michael@0 | 84 | "[object Object][object Object]", |
| michael@0 | 85 | eval("var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2") ); |
| michael@0 | 86 | |
| michael@0 | 87 | // tests for number primitive, number object, Object object, a "MyObject" whose value is |
| michael@0 | 88 | // a number primitive and a number object. |
| michael@0 | 89 | |
| michael@0 | 90 | new TestCase( SECTION, |
| michael@0 | 91 | "var EXP_1 = 100; var EXP_2 = -1; EXP_1 + EXP_2", |
| michael@0 | 92 | 99, |
| michael@0 | 93 | eval("var EXP_1 = 100; var EXP_2 = -1; EXP_1 + EXP_2") ); |
| michael@0 | 94 | |
| michael@0 | 95 | new TestCase( SECTION, |
| michael@0 | 96 | "var EXP_1 = new Number(100); var EXP_2 = new Number(-1); EXP_1 + EXP_2", |
| michael@0 | 97 | 99, |
| michael@0 | 98 | eval("var EXP_1 = new Number(100); var EXP_2 = new Number(-1); EXP_1 + EXP_2") ); |
| michael@0 | 99 | |
| michael@0 | 100 | new TestCase( SECTION, |
| michael@0 | 101 | "var EXP_1 = new Object(100); var EXP_2 = new Object(-1); EXP_1 + EXP_2", |
| michael@0 | 102 | 99, |
| michael@0 | 103 | eval("var EXP_1 = new Object(100); var EXP_2 = new Object(-1); EXP_1 + EXP_2") ); |
| michael@0 | 104 | |
| michael@0 | 105 | new TestCase( SECTION, |
| michael@0 | 106 | "var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2", |
| michael@0 | 107 | 99, |
| michael@0 | 108 | eval("var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2") ); |
| michael@0 | 109 | |
| michael@0 | 110 | new TestCase( SECTION, |
| michael@0 | 111 | "var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(-1); EXP_1 + EXP_2", |
| michael@0 | 112 | 99, |
| michael@0 | 113 | eval("var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(-1); EXP_1 + EXP_2") ); |
| michael@0 | 114 | |
| michael@0 | 115 | new TestCase( SECTION, |
| michael@0 | 116 | "var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2", |
| michael@0 | 117 | "[object Object][object Object]", |
| michael@0 | 118 | eval("var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2") ); |
| michael@0 | 119 | |
| michael@0 | 120 | |
| michael@0 | 121 | test(); |
| michael@0 | 122 | |
| michael@0 | 123 | function MyObject( value ) { |
| michael@0 | 124 | this.valueOf = new Function( "return this.value" ); |
| michael@0 | 125 | this.value = value; |
| michael@0 | 126 | } |
