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// |reftest| shell-option(--enable-upsert) skip-if(!WeakMap.prototype.getOrInsertComputed)
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// Copyright (C) 2025 Jonas Haukenes, Sune Eriksson Lianes. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: proposal-upsert
description: >
Throws a TypeError if `this` is not an Object.
info: |
WeakMap.prototype.getOrInsertComputed ( key , callbackfn )
1. Let M be the this value
2. Perform ? RequireInternalSlot(M, [[WeakMapData]])
...
features: [Symbol]
---*/
var m = new WeakMap();
assertThrowsInstanceOf(function () {
m.getOrInsertComputed.call(false, {}, () => 1);
}, TypeError);
assertThrowsInstanceOf(function () {
m.getOrInsertComputed.call(1, {}, () => 1);
}, TypeError);
assertThrowsInstanceOf(function () {
m.getOrInsertComputed.call("", {}, () => 1);
}, TypeError);
assertThrowsInstanceOf(function () {
m.getOrInsertComputed.call(undefined, {}, () => 1);
}, TypeError);
assertThrowsInstanceOf(function () {
m.getOrInsertComputed.call(null, {}, () => 1);
}, TypeError);
assertThrowsInstanceOf(function () {
m.getOrInsertComputed.call(Symbol(), {}, () => 1);
}, TypeError);
assertThrowsInstanceOf(function () {
m.getOrInsertComputed.call('', {}, () => 1);
}, TypeError);
reportCompare(0, 0);