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// Copyright (C) 2018 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.flatMap
description: >
Observe abrupt completion in poisoned lengths of array-like objects
info: |
Array.prototype.flatMap ( mapperFunction [ , thisArg ] )
1. Let O be ? ToObject(this value).
2. Let sourceLen be ? ToLength(? Get(O, "length")).
features: [Array.prototype.flatMap, Symbol.toPrimitive]
---*/
assert.sameValue(typeof Array.prototype.flatMap, 'function');
function fn(e) {
return e;
}
var arr = {
length: Symbol(),
};
assert.throws(TypeError, function() {
[].flatMap.call(arr, fn);
}, 'length is a symbol');
arr = {
get length() { throw new Test262Error() }
};
assert.throws(Test262Error, function() {
[].flatMap.call(arr, fn);
}, 'custom get error');
arr = {
length: {
valueOf() { throw new Test262Error() }
}
};
assert.throws(Test262Error, function() {
[].flatMap.call(arr, fn);
}, 'custom valueOf error');
arr = {
length: {
toString() { throw new Test262Error() }
}
};
assert.throws(Test262Error, function() {
[].flatMap.call(arr, fn);
}, 'custom toString error');
arr = {
length: {
[Symbol.toPrimitive]() { throw new Test262Error() }
}
};
assert.throws(Test262Error, function() {
[].flatMap.call(arr, fn);
}, 'custom Symbol.toPrimitive error');
reportCompare(0, 0);
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