58 lines
1.6 KiB
TypeScript
58 lines
1.6 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {BundlePrivateEntry} from './bundler';
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const INDEX_HEADER = `/**
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* Generated bundle index. Do not edit.
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*/
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`;
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type MapEntry = [string, BundlePrivateEntry[]];
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export function privateEntriesToIndex(index: string, privates: BundlePrivateEntry[]): string {
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const results: string[] = [INDEX_HEADER];
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// Export all of the index symbols.
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results.push(`export * from '${index}';`, '');
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// Simplify the exports
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const exports = new Map<string, BundlePrivateEntry[]>();
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for (const entry of privates) {
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let entries = exports.get(entry.module);
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if (!entries) {
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entries = [];
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exports.set(entry.module, entries);
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}
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entries.push(entry);
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}
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const compareEntries = compare((e: BundlePrivateEntry) => e.name);
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const compareModules = compare((e: MapEntry) => e[0]);
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const orderedExports =
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Array.from(exports)
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.map(([module, entries]) => <MapEntry>[module, entries.sort(compareEntries)])
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.sort(compareModules);
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for (const [module, entries] of orderedExports) {
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let symbols = entries.map(e => `${e.name} as ${e.privateName}`);
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results.push(`export {${symbols}} from '${module}';`);
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}
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return results.join('\n');
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}
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function compare<E, T>(select: (e: E) => T): (a: E, b: E) => number {
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return (a, b) => {
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const ak = select(a);
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const bk = select(b);
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return ak > bk ? 1 : ak < bk ? -1 : 0;
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};
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} |