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comparison: js/src/jit-test/tests/arguments/args-attributes.js
js/src/jit-test/tests/arguments/args-attributes.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:2a0a538efe41 |
|---|---|
| 1 function strictArgs() { | |
| 2 return (function (a, b, c) {'use strict'; return arguments; })(1, 2); | |
| 3 } | |
| 4 | |
| 5 function normalArgs() { | |
| 6 return (function (a, b, c) { return arguments; })(1, 2); | |
| 7 } | |
| 8 | |
| 9 function checkProperty(options, prop, shouldThrow) { | |
| 10 var desc, orig; | |
| 11 var obj = options.strict ? strictArgs() : normalArgs(); | |
| 12 var objType = options.strict ? "strict arguments." : "normal arguments."; | |
| 13 | |
| 14 function check() { | |
| 15 orig = Object.getOwnPropertyDescriptor(obj, prop); | |
| 16 | |
| 17 var threw = false; | |
| 18 try { | |
| 19 obj[prop] = obj[prop]; | |
| 20 } | |
| 21 catch (e) { | |
| 22 threw = true; | |
| 23 } | |
| 24 assertEq(threw, shouldThrow, objType + prop + " threw"); | |
| 25 | |
| 26 if (orig === undefined) { | |
| 27 // The property wasn't defined, so we can skip it. | |
| 28 return; | |
| 29 } | |
| 30 | |
| 31 desc = Object.getOwnPropertyDescriptor(obj, prop); | |
| 32 if ("value" in orig) { | |
| 33 assertEq(desc.value, orig.value, objType + prop + " value"); | |
| 34 } else { | |
| 35 assertEq(desc.get, orig.get, objType + prop + " get"); | |
| 36 assertEq(desc.set, orig.set, objType + prop + " set"); | |
| 37 } | |
| 38 assertEq(desc.writable, orig.writable, objType + prop + " writable"); | |
| 39 assertEq(desc.enumerable, orig.enumerable, objType + prop + " enumerable"); | |
| 40 assertEq(desc.configurable, orig.configurable, objType + prop + " configurable"); | |
| 41 } | |
| 42 | |
| 43 check(); | |
| 44 | |
| 45 if (orig && orig.configurable) { | |
| 46 if(options.refresh) { obj = options.strict ? strictArgs() : normalArgs(); } | |
| 47 Object.defineProperty(obj, prop, {writable: false, enumerable: true}); | |
| 48 check(); | |
| 49 | |
| 50 if(options.refresh) { obj = options.strict ? strictArgs() : normalArgs(); } | |
| 51 Object.defineProperty(obj, prop, {writable: true, enumerable: false}); | |
| 52 check(); | |
| 53 | |
| 54 if(options.refresh) { obj = options.strict ? strictArgs() : normalArgs(); } | |
| 55 Object.defineProperty(obj, prop, {writable: false, configurable: false}); | |
| 56 check(); | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 checkProperty({strict: true, refresh: true}, 'callee', true); | |
| 61 checkProperty({strict: true, refresh: false}, 'callee', true); | |
| 62 checkProperty({strict: false, refresh: true}, 'callee', false); | |
| 63 checkProperty({strict: false, refresh: false}, 'callee', false); | |
| 64 | |
| 65 checkProperty({strict: true, refresh: true}, 'length', false); | |
| 66 checkProperty({strict: true, refresh: false}, 'length', false); | |
| 67 checkProperty({strict: false, refresh: true}, 'length', false); | |
| 68 checkProperty({strict: false, refresh: false}, 'length', false); | |
| 69 | |
| 70 for (var i = 0; i <= 5; i++) { | |
| 71 checkProperty({strict: true, refresh: true}, "" + i, false); | |
| 72 checkProperty({strict: true, refresh: false}, "" + i, false); | |
| 73 checkProperty({strict: false, refresh: true}, "" + i, false); | |
| 74 checkProperty({strict: false, refresh: false}, "" + i, false); | |
| 75 } |
