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packages/react-native/Libraries/StyleSheet/processAspectRatio.js
65 строк
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Marco Wang
Pre-suppress errors for null_void for xplat js (#52480)
08 июл 2025, 06:35
08 июл 2025, 06:35
68650ba
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/** * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @flow strict-local * @format */ 'use strict'; const invariant = require('invariant'); function processAspectRatio(aspectRatio?: number | string): ?number { if (typeof aspectRatio === 'number') { return aspectRatio; } if (typeof aspectRatio !== 'string') { if (__DEV__) { invariant( /* $FlowFixMe[constant-condition] Error discovered during Constant * Condition roll out. See https://fburl.com/workplace/1v97vimq. */ !aspectRatio, 'aspectRatio must either be a number, a ratio string or `auto`. You passed: %s', aspectRatio, ); } return; } const matches = aspectRatio.split('/').map(s => s.trim()); if (matches.includes('auto')) { if (__DEV__) { invariant( matches.length, 'aspectRatio does not support `auto <ratio>`. You passed: %s', aspectRatio, ); } return; } const hasNonNumericValues = matches.some(n => Number.isNaN(Number(n))); if (__DEV__) { invariant( !hasNonNumericValues && (matches.length === 1 || matches.length === 2), 'aspectRatio must either be a number, a ratio string or `auto`. You passed: %s', aspectRatio, ); } if (hasNonNumericValues) { return; } if (matches.length === 2) { return Number(matches[0]) / Number(matches[1]); } return Number(matches[0]); } export default processAspectRatio;