import extend from '../utils/extend';
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import { createUTC } from './utc';
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import getParsingFlags from '../create/parsing-flags';
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export function isValid(m) {
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if (m._isValid == null) {
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var flags = getParsingFlags(m);
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m._isValid = !isNaN(m._d.getTime()) &&
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flags.overflow < 0 &&
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!flags.empty &&
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!flags.invalidMonth &&
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!flags.invalidWeekday &&
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!flags.nullInput &&
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!flags.invalidFormat &&
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!flags.userInvalidated;
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if (m._strict) {
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m._isValid = m._isValid &&
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flags.charsLeftOver === 0 &&
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flags.unusedTokens.length === 0 &&
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flags.bigHour === undefined;
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}
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}
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return m._isValid;
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}
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export function createInvalid (flags) {
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var m = createUTC(NaN);
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if (flags != null) {
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extend(getParsingFlags(m), flags);
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}
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else {
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getParsingFlags(m).userInvalidated = true;
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}
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return m;
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}
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