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// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-map.prototype.keys
description: >
Throws a TypeError if `this` object does not have a [[MapData]] internal slot.
info: |
Map.prototype.keys ()
1. Let M be the this value.
2. Return CreateMapIterator(M, "key").
23.1.5.1 CreateMapIterator Abstract Operation
...
2. If map does not have a [[MapData]] internal slot, throw a TypeError
exception.
...
---*/
var m = new Map();
assert.throws(TypeError, function() {
Map.prototype.keys.call([]);
});
assert.throws(TypeError, function() {
m.keys.call([]);
});
assert.throws(TypeError, function() {
Map.prototype.keys.call({});
});
assert.throws(TypeError, function() {
m.keys.call({});
});
reportCompare(0, 0);
|
