forked from xuos/xiuos
				
			
		
			
				
	
	
		
			51 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			51 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
| // Copyright JS Foundation and other contributors, http://js.foundation
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| //
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| // Licensed under the Apache License, Version 2.0 (the "License");
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| // you may not use this file except in compliance with the License.
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| // You may obtain a copy of the License at
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| //
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| //     http://www.apache.org/licenses/LICENSE-2.0
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| //
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| // Unless required by applicable law or agreed to in writing, software
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| // distributed under the License is distributed on an "AS IS" BASIS
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| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| // See the License for the specific language governing permissions and
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| // limitations under the License.
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| 
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| function Box(data) {
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|   this._data = data;
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| }
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| 
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| var box = new Box('=');
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| 
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| Object.defineProperty(Box.prototype, 'data', {
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|   get: function () {
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|     assert(this === box);
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|     return this._data;
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|   },
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|   set: function (data) {
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|     assert(this === box);
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|     this._data = data;
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|   }
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| });
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| 
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| assert(box.data === '=');
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| box.data = '+';
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| assert(box.data === '+');
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| 
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| function test_access(value, proto) {
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|   "use strict"
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| 
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|   Object.defineProperty(proto, 'test', {
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|     get: function () { assert (this === value) },
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|     set: function () { assert (this === value) }
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|   });
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| 
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|   value.test;
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|   value.test = undefined;
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| }
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| 
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| test_access ("str", String.prototype);
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| test_access (1, Number.prototype);
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| test_access (true, Boolean.prototype);
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