ng-packagr/lib/utils/ng-compiler-cli.js

Compile and package Angular libraries in Angular Package Format (APF)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ngCompilerCli = void 0;
async function ngCompilerCli() {
    // This uses a dynamic import to load `@angular/compiler-cli` which may be ESM.
    // CommonJS code can load ESM code via a dynamic import. Unfortunately, TypeScript
    // will currently, unconditionally downlevel dynamic import into a require call.
    // require calls cannot load ESM code and will result in a runtime error. To workaround
    // this, a Function constructor is used to prevent TypeScript from changing the dynamic import.
    // Once TypeScript provides support for keeping the dynamic import this workaround can
    // be dropped.
    const compilerCliModule = await new Function(`return import('@angular/compiler-cli');`)();
    // If it is not ESM then the functions needed will be stored in the `default` property.
    // This conditional can be removed when `@angular/compiler-cli` is ESM only.
    return compilerCliModule.readConfiguration ? compilerCliModule : compilerCliModule.default;
}
exports.ngCompilerCli = ngCompilerCli;
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