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exec.js
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exec.js
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expect(() => {
var [] = null;
}).toThrow(TypeError);
expect(() => {
var [] = 42;
}).toThrow(TypeError);
expect(() => {
var [] = {};
}).toThrow(TypeError);
expect(() => {
var [] = { [Symbol.iterator]: () => {} };
}).toThrow(TypeError);
expect(() => {
var [] = [];
var [] = [0, 1, 2];
var [] = "foo";
var [] = (function*() { throw new Error("Should not throw"); })();
var [] = { [Symbol.iterator]: () => ({}) };
var [] = { [Symbol.iterator]: () => () => {} };
var [] = { [Symbol.iterator]: async function*() {} };
}).not.toThrow();
// iterator.return should be called
var returnCalled = false;
var [] = {
[Symbol.iterator]: () => {
return {
return: () => {
returnCalled = true;
return {};
},
};
},
};
expect(returnCalled).toStrictEqual(true);
// #15154
expect(() => {
var [] = { [Symbol.iterator]: () => [] };
}).not.toThrow();
// #15168
expect(() => {
var [] = { [Symbol.iterator]: () => async function* () {} };
}).not.toThrow();