47 lines
1.4 KiB
JavaScript
47 lines
1.4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true,
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});
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exports.reactNativePlatformResolver = reactNativePlatformResolver;
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/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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*
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* @format
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* @oncall react_native
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*/
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/**
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* This is an implementation of a metro resolveRequest option which will remap react-native imports
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* to different npm packages based on the platform requested. This allows a single metro instance/config
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* to produce bundles for multiple out of tree platforms at a time.
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*
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* @param platformImplementations
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* A map of platform to npm package that implements that platform
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*
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* Ex:
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* {
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* windows: 'react-native-windows'
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* macos: 'react-native-macos'
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* }
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*/
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function reactNativePlatformResolver(platformImplementations) {
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return (context, moduleName, platform) => {
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let modifiedModuleName = moduleName;
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if (platform != null && platformImplementations[platform]) {
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if (moduleName === "react-native") {
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modifiedModuleName = platformImplementations[platform];
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} else if (moduleName.startsWith("react-native/")) {
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modifiedModuleName = `${
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platformImplementations[platform]
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}/${modifiedModuleName.slice("react-native/".length)}`;
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}
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}
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return context.resolveRequest(context, modifiedModuleName, platform);
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};
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}
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