| // Copyright (C) 2015 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| es6id: 23.1.3.5 |
| description: > |
| Throws a TypeError if `this` object does not have a [[MapData]] internal slot. |
| info: | |
| Map.prototype.forEach ( callbackfn [ , thisArg ] ) |
| |
| ... |
| 3. If M does not have a [[MapData]] internal slot, throw a TypeError |
| exception. |
| ... |
| ---*/ |
| |
| var m = new Map(); |
| |
| assert.throws(TypeError, function() { |
| Map.prototype.forEach.call([], function() {}); |
| }); |
| |
| assert.throws(TypeError, function() { |
| m.forEach.call([], function() {}); |
| }); |
| |
| assert.throws(TypeError, function() { |
| Map.prototype.forEach.call({}, function() {}); |
| }); |
| |
| assert.throws(TypeError, function() { |
| m.forEach.call({}, function() {}); |
| }); |