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112 lines
2.8 KiB
112 lines
2.8 KiB
/**
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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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*/
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"use strict";
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var _CountingSet = _interopRequireDefault(require("./CountingSet"));
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function _interopRequireDefault(obj) {
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return obj && obj.__esModule ? obj : { default: obj };
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}
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const countLines = require("./countLines");
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const getPreludeCode = require("./getPreludeCode");
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const transformHelpers = require("./transformHelpers");
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const defaults = require("metro-config/src/defaults/defaults");
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async function getPrependedScripts(
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config,
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options,
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resolverOptions,
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bundler,
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deltaBundler
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) {
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// Get all the polyfills from the relevant option params (the
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// `getPolyfills()` method and the `polyfillModuleNames` variable).
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const polyfillModuleNames = config.serializer
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.getPolyfills({
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platform: options.platform,
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})
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.concat(config.serializer.polyfillModuleNames);
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const transformOptions = { ...options, type: "script" };
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const dependencies = await deltaBundler.getDependencies(
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[defaults.moduleSystem, ...polyfillModuleNames],
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{
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resolve: await transformHelpers.getResolveDependencyFn(
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bundler,
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options.platform,
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resolverOptions
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),
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transform: await transformHelpers.getTransformFn(
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[defaults.moduleSystem, ...polyfillModuleNames],
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bundler,
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deltaBundler,
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config,
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transformOptions,
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resolverOptions
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),
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unstable_allowRequireContext:
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config.transformer.unstable_allowRequireContext,
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transformOptions,
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onProgress: null,
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experimentalImportBundleSupport:
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config.transformer.experimentalImportBundleSupport,
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shallow: false,
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}
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);
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return [
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_getPrelude({
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dev: options.dev,
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globalPrefix: config.transformer.globalPrefix,
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requireCycleIgnorePatterns: config.resolver.requireCycleIgnorePatterns,
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}),
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...dependencies.values(),
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];
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}
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function _getPrelude({ dev, globalPrefix, requireCycleIgnorePatterns }) {
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const { compile } = require("metro-hermes-compiler");
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const code = getPreludeCode({
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isDev: dev,
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globalPrefix,
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requireCycleIgnorePatterns,
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});
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const name = "__prelude__";
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return {
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dependencies: new Map(),
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getSource: () => Buffer.from(code),
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inverseDependencies: new _CountingSet.default(),
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path: name,
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output: [
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{
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type: "js/script/virtual",
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data: {
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code,
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lineCount: countLines(code),
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map: [],
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},
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},
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{
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type: "bytecode/script/virtual",
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data: {
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bytecode: compile(code, {
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sourceURL: "__prelude__.virtual.js",
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}).bytecode,
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},
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},
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],
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};
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}
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module.exports = getPrependedScripts;
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