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| Current File : /var/www/html/infraai.ai/frontend/node_modules/core-js-pure/modules/es.iterator.flat-map.js |
'use strict';
var $ = require('../internals/export');
var call = require('../internals/function-call');
var aCallable = require('../internals/a-callable');
var anObject = require('../internals/an-object');
var getIteratorDirect = require('../internals/get-iterator-direct');
var getIteratorFlattenable = require('../internals/get-iterator-flattenable');
var createIteratorProxy = require('../internals/iterator-create-proxy');
var iteratorClose = require('../internals/iterator-close');
var IS_PURE = require('../internals/is-pure');
var iteratorHelperThrowsOnInvalidIterator = require('../internals/iterator-helper-throws-on-invalid-iterator');
var iteratorHelperWithoutClosingOnEarlyError = require('../internals/iterator-helper-without-closing-on-early-error');
// Should not throw an error for an iterator without `return` method. Fixed in Safari 26.2
// https://bugs.webkit.org/show_bug.cgi?id=297532
function throwsOnIteratorWithoutReturn() {
try {
// eslint-disable-next-line es/no-map, es/no-iterator, es/no-iterator-prototype-flatmap -- required for testing
var it = Iterator.prototype.flatMap.call(new Map([[4, 5]]).entries(), function (v) { return v; });
it.next();
it['return']();
} catch (error) {
return true;
}
}
var FLAT_MAP_WITHOUT_THROWING_ON_INVALID_ITERATOR = !IS_PURE
&& !iteratorHelperThrowsOnInvalidIterator('flatMap', function () { /* empty */ });
var flatMapWithoutClosingOnEarlyError = !IS_PURE && !FLAT_MAP_WITHOUT_THROWING_ON_INVALID_ITERATOR
&& iteratorHelperWithoutClosingOnEarlyError('flatMap', TypeError);
var FORCED = IS_PURE || FLAT_MAP_WITHOUT_THROWING_ON_INVALID_ITERATOR || flatMapWithoutClosingOnEarlyError
|| throwsOnIteratorWithoutReturn();
var IteratorProxy = createIteratorProxy(function () {
var iterator = this.iterator;
var mapper = this.mapper;
var result, inner;
while (true) {
if (inner = this.inner) try {
result = anObject(call(inner.next, inner.iterator));
if (!result.done) return result.value;
this.inner = null;
} catch (error) { iteratorClose(iterator, 'throw', error); }
result = anObject(call(this.next, iterator));
if (this.done = !!result.done) return;
try {
this.inner = getIteratorFlattenable(mapper(result.value, this.counter++), false);
} catch (error) { iteratorClose(iterator, 'throw', error); }
}
});
// `Iterator.prototype.flatMap` method
// https://tc39.es/ecma262/#sec-iterator.prototype.flatmap
$({ target: 'Iterator', proto: true, real: true, forced: FORCED }, {
flatMap: function flatMap(mapper) {
anObject(this);
try {
aCallable(mapper);
} catch (error) {
iteratorClose(this, 'throw', error);
}
if (flatMapWithoutClosingOnEarlyError) return call(flatMapWithoutClosingOnEarlyError, this, mapper);
return new IteratorProxy(getIteratorDirect(this), {
mapper: mapper,
inner: null
});
}
});