js/src/jit-test/tests/proxy/testDirectProxySet3.js

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1 load(libdir + "asserts.js");
2
3 // Throw a TypeError if the trap sets a non-writable, non-configurable property
4 var target = {};
5 Object.defineProperty(target, 'foo', {
6 value: 'bar',
7 writable: false,
8 configurable: false
9 });
10 assertThrowsInstanceOf(function () {
11 new Proxy(target, {
12 set: function (target, name, val, receiver) {
13 return true;
14 }
15 })['foo'] = 'baz';
16 }, TypeError);

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