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// |reftest| skip-if(!this.hasOwnProperty('Iterator'))
class TestError extends Error {}
class TestIterator extends Iterator {
next() {
return {done: false, value: 'value'};
}
closed = false;
return(value) {
this.closed = true;
return {done: true, value};
}
}
function checkIterResult({done, value}, expectedDone, expectedValue) {
assertEq(done, expectedDone);
assertEq(Array.isArray(value) ? value[1] : value, expectedValue);
}
const otherGlobal = newGlobal({newCompartment: true});
const methods = [
["map", x => x],
["filter", x => true],
["take", Infinity],
["drop", 0],
["flatMap", x => [x]],
];
for (const [method, arg] of methods) {
const {next: otherNext} = Object.getPrototypeOf(
new otherGlobal.Array().values()[method](arg)
);
const iterator = new TestIterator();
const helper = iterator[method](arg);
checkIterResult(otherNext.call(helper), false, 'value');
}
for (const [method, arg] of methods) {
const {return: otherReturn} = Object.getPrototypeOf(
new otherGlobal.Array().values()[method](arg)
);
const iterator = new TestIterator();
const helper = iterator[method](arg);
assertEq(iterator.closed, false);
checkIterResult(otherReturn.call(helper), true, undefined);
assertEq(iterator.closed, true);
}
if (typeof reportCompare === 'function')
reportCompare(0, 0);