@angular/build
Version:
Official build system for Angular
150 lines • 8 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.JitCompilation = void 0;
const node_assert_1 = __importDefault(require("node:assert"));
const typescript_1 = __importDefault(require("typescript"));
const profiling_1 = require("../../esbuild/profiling");
const angular_host_1 = require("../angular-host");
const jit_resource_transformer_1 = require("../transformers/jit-resource-transformer");
const lazy_routes_transformer_1 = require("../transformers/lazy-routes-transformer");
const web_worker_transformer_1 = require("../transformers/web-worker-transformer");
const angular_compilation_1 = require("./angular-compilation");
class JitCompilationState {
compilerHost;
typeScriptProgram;
constructorParametersDownlevelTransform;
replaceResourcesTransform;
webWorkerTransform;
constructor(compilerHost, typeScriptProgram, constructorParametersDownlevelTransform, replaceResourcesTransform, webWorkerTransform) {
this.compilerHost = compilerHost;
this.typeScriptProgram = typeScriptProgram;
this.constructorParametersDownlevelTransform = constructorParametersDownlevelTransform;
this.replaceResourcesTransform = replaceResourcesTransform;
this.webWorkerTransform = webWorkerTransform;
}
}
class JitCompilation extends angular_compilation_1.AngularCompilation {
browserOnlyBuild;
#state;
constructor(browserOnlyBuild) {
super();
this.browserOnlyBuild = browserOnlyBuild;
}
async initialize(tsconfig, hostOptions, compilerOptionsTransformer) {
// Dynamically load the Angular compiler CLI package
const { constructorParametersDownlevelTransform } = await Promise.resolve().then(() => __importStar(require('@angular/compiler-cli/private/tooling')));
// Load the compiler configuration and transform as needed
const { options: originalCompilerOptions, rootNames, errors: configurationDiagnostics, } = await this.loadConfiguration(tsconfig);
const compilerOptions = compilerOptionsTransformer?.(originalCompilerOptions) ?? originalCompilerOptions;
// Create Angular compiler host
const host = (0, angular_host_1.createAngularCompilerHost)(typescript_1.default, compilerOptions, hostOptions, undefined);
// Create the TypeScript Program
const typeScriptProgram = (0, profiling_1.profileSync)('TS_CREATE_PROGRAM', () => typescript_1.default.createEmitAndSemanticDiagnosticsBuilderProgram(rootNames, compilerOptions, host, this.#state?.typeScriptProgram ?? typescript_1.default.readBuilderProgram(compilerOptions, host), configurationDiagnostics));
const affectedFiles = (0, profiling_1.profileSync)('TS_FIND_AFFECTED', () => findAffectedFiles(typeScriptProgram));
this.#state = new JitCompilationState(host, typeScriptProgram, constructorParametersDownlevelTransform(typeScriptProgram.getProgram()), (0, jit_resource_transformer_1.createJitResourceTransformer)(() => typeScriptProgram.getProgram().getTypeChecker()), (0, web_worker_transformer_1.createWorkerTransformer)(hostOptions.processWebWorker.bind(hostOptions)));
const referencedFiles = typeScriptProgram
.getSourceFiles()
.map((sourceFile) => sourceFile.fileName);
return { affectedFiles, compilerOptions, referencedFiles };
}
*collectDiagnostics(modes) {
(0, node_assert_1.default)(this.#state, 'Compilation must be initialized prior to collecting diagnostics.');
const { typeScriptProgram } = this.#state;
// Collect program level diagnostics
if (modes & angular_compilation_1.DiagnosticModes.Option) {
yield* typeScriptProgram.getConfigFileParsingDiagnostics();
yield* typeScriptProgram.getOptionsDiagnostics();
}
if (modes & angular_compilation_1.DiagnosticModes.Syntactic) {
yield* typeScriptProgram.getGlobalDiagnostics();
yield* (0, profiling_1.profileSync)('NG_DIAGNOSTICS_SYNTACTIC', () => typeScriptProgram.getSyntacticDiagnostics());
}
if (modes & angular_compilation_1.DiagnosticModes.Semantic) {
yield* (0, profiling_1.profileSync)('NG_DIAGNOSTICS_SEMANTIC', () => typeScriptProgram.getSemanticDiagnostics());
}
}
emitAffectedFiles() {
(0, node_assert_1.default)(this.#state, 'Compilation must be initialized prior to emitting files.');
const { compilerHost, typeScriptProgram, constructorParametersDownlevelTransform, replaceResourcesTransform, webWorkerTransform, } = this.#state;
const compilerOptions = typeScriptProgram.getCompilerOptions();
const buildInfoFilename = compilerOptions.tsBuildInfoFile ?? '.tsbuildinfo';
const emittedFiles = [];
const writeFileCallback = (filename, contents, _a, _b, sourceFiles) => {
if (!sourceFiles?.length && filename.endsWith(buildInfoFilename)) {
// Save builder info contents to specified location
compilerHost.writeFile(filename, contents, false);
return;
}
(0, node_assert_1.default)(sourceFiles?.length === 1, 'Invalid TypeScript program emit for ' + filename);
emittedFiles.push({ filename: sourceFiles[0].fileName, contents });
};
const transformers = {
before: [
replaceResourcesTransform,
constructorParametersDownlevelTransform,
webWorkerTransform,
],
};
if (!this.browserOnlyBuild) {
transformers.before.push((0, lazy_routes_transformer_1.lazyRoutesTransformer)(compilerOptions, compilerHost));
}
// TypeScript will loop until there are no more affected files in the program
while (typeScriptProgram.emitNextAffectedFile(writeFileCallback, undefined, undefined, transformers)) {
/* empty */
}
return emittedFiles;
}
}
exports.JitCompilation = JitCompilation;
function findAffectedFiles(builder) {
const affectedFiles = new Set();
let result;
while ((result = builder.getSemanticDiagnosticsOfNextAffectedFile())) {
affectedFiles.add(result.affected);
}
return affectedFiles;
}
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