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https://github.com/angular/angular
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c065f1b87a
All other frameworks packages are now using APF v13 and are strict ESM packages. The compiler-cli does not use APF and is currently shipped with its devmode ES5 CommonJS sources. This is problematic as CommonJS cannot simply import from ECMAScript modules (like `@angular/compiler`). To fix this we use a bundler that allows us to ship the compiler-cli as a strict ESM package. Note: An ESM can import from an ESM without any problems. This is what we need hre. Unfortunatley we need a bundler here because converting the compiler-cli to ESM is non-trivial as relative imports would need an explicit `.js` extension. This work can be simplified by using a bundler that avoids relative imports completely. Note: This commit uses code-splitting to create multiple bundle entry-points for `yarn ngc, `yarn ngcc` etc. This commit removed the old `ivy-ngcc` entry-point that just printed an error message (to reduce amount of bundles having to be configured). PR Close #43431
24 lines
895 B
JavaScript
24 lines
895 B
JavaScript
/**
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* @license
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* Copyright Google LLC 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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module.exports = {
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resolveExtensions: ['.mjs', '.js'],
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// Note: `@bazel/esbuild` has a bug and does not pass-through the format from Starlark.
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format: 'esm',
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banner: {
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// Workaround for: https://github.com/evanw/esbuild/issues/946
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// We also define `__ESM_IMPORT_META_URL__` because we cannot use `import.meta.url`
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// in our sources yet. The devmode CommonJS output will otherwise break.
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// TODO: Remove this workaround in the future once devmode is ESM as well.
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js: `
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import {createRequire as __cjsCompatRequire} from 'module';
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const require = __cjsCompatRequire(import.meta.url);
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const __ESM_IMPORT_META_URL__ = import.meta.url;
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`,
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},
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};
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