303 lines
11 KiB
JavaScript
303 lines
11 KiB
JavaScript
"use strict";
|
|
/*---------------------------------------------------------------------------------------------
|
|
* Copyright (c) Microsoft Corporation. All rights reserved.
|
|
* Licensed under the MIT License. See License.txt in the project root for license information.
|
|
*--------------------------------------------------------------------------------------------*/
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.ESBuildTranspiler = exports.TscTranspiler = void 0;
|
|
const esbuild = require("esbuild");
|
|
const ts = require("typescript");
|
|
const threads = require("node:worker_threads");
|
|
const Vinyl = require("vinyl");
|
|
const node_os_1 = require("node:os");
|
|
function transpile(tsSrc, options) {
|
|
const isAmd = /\n(import|export)/m.test(tsSrc);
|
|
if (!isAmd && options.compilerOptions?.module === ts.ModuleKind.AMD) {
|
|
// enforce NONE module-system for not-amd cases
|
|
options = { ...options, ...{ compilerOptions: { ...options.compilerOptions, module: ts.ModuleKind.None } } };
|
|
}
|
|
const out = ts.transpileModule(tsSrc, options);
|
|
return {
|
|
jsSrc: out.outputText,
|
|
diag: out.diagnostics ?? []
|
|
};
|
|
}
|
|
if (!threads.isMainThread) {
|
|
// WORKER
|
|
threads.parentPort?.addListener('message', (req) => {
|
|
const res = {
|
|
jsSrcs: [],
|
|
diagnostics: []
|
|
};
|
|
for (const tsSrc of req.tsSrcs) {
|
|
const out = transpile(tsSrc, req.options);
|
|
res.jsSrcs.push(out.jsSrc);
|
|
res.diagnostics.push(out.diag);
|
|
}
|
|
threads.parentPort.postMessage(res);
|
|
});
|
|
}
|
|
class OutputFileNameOracle {
|
|
getOutputFileName;
|
|
constructor(cmdLine, configFilePath) {
|
|
this.getOutputFileName = (file) => {
|
|
try {
|
|
// windows: path-sep normalizing
|
|
file = ts.normalizePath(file);
|
|
if (!cmdLine.options.configFilePath) {
|
|
// this is needed for the INTERNAL getOutputFileNames-call below...
|
|
cmdLine.options.configFilePath = configFilePath;
|
|
}
|
|
const isDts = file.endsWith('.d.ts');
|
|
if (isDts) {
|
|
file = file.slice(0, -5) + '.ts';
|
|
cmdLine.fileNames.push(file);
|
|
}
|
|
const outfile = ts.getOutputFileNames(cmdLine, file, true)[0];
|
|
if (isDts) {
|
|
cmdLine.fileNames.pop();
|
|
}
|
|
return outfile;
|
|
}
|
|
catch (err) {
|
|
console.error(file, cmdLine.fileNames);
|
|
console.error(err);
|
|
throw err;
|
|
}
|
|
};
|
|
}
|
|
}
|
|
class TranspileWorker {
|
|
static pool = 1;
|
|
id = TranspileWorker.pool++;
|
|
_worker = new threads.Worker(__filename);
|
|
_pending;
|
|
_durations = [];
|
|
constructor(outFileFn) {
|
|
this._worker.addListener('message', (res) => {
|
|
if (!this._pending) {
|
|
console.error('RECEIVING data WITHOUT request');
|
|
return;
|
|
}
|
|
const [resolve, reject, files, options, t1] = this._pending;
|
|
const outFiles = [];
|
|
const diag = [];
|
|
for (let i = 0; i < res.jsSrcs.length; i++) {
|
|
// inputs and outputs are aligned across the arrays
|
|
const file = files[i];
|
|
const jsSrc = res.jsSrcs[i];
|
|
const diag = res.diagnostics[i];
|
|
if (diag.length > 0) {
|
|
diag.push(...diag);
|
|
continue;
|
|
}
|
|
let SuffixTypes;
|
|
(function (SuffixTypes) {
|
|
SuffixTypes[SuffixTypes["Dts"] = 5] = "Dts";
|
|
SuffixTypes[SuffixTypes["Ts"] = 3] = "Ts";
|
|
SuffixTypes[SuffixTypes["Unknown"] = 0] = "Unknown";
|
|
})(SuffixTypes || (SuffixTypes = {}));
|
|
const suffixLen = file.path.endsWith('.d.ts') ? 5 /* SuffixTypes.Dts */
|
|
: file.path.endsWith('.ts') ? 3 /* SuffixTypes.Ts */
|
|
: 0 /* SuffixTypes.Unknown */;
|
|
// check if output of a DTS-files isn't just "empty" and iff so
|
|
// skip this file
|
|
if (suffixLen === 5 /* SuffixTypes.Dts */ && _isDefaultEmpty(jsSrc)) {
|
|
continue;
|
|
}
|
|
const outBase = options.compilerOptions?.outDir ?? file.base;
|
|
const outPath = outFileFn(file.path);
|
|
outFiles.push(new Vinyl({
|
|
path: outPath,
|
|
base: outBase,
|
|
contents: Buffer.from(jsSrc),
|
|
}));
|
|
}
|
|
this._pending = undefined;
|
|
this._durations.push(Date.now() - t1);
|
|
if (diag.length > 0) {
|
|
reject(diag);
|
|
}
|
|
else {
|
|
resolve(outFiles);
|
|
}
|
|
});
|
|
}
|
|
terminate() {
|
|
// console.log(`Worker#${this.id} ENDS after ${this._durations.length} jobs (total: ${this._durations.reduce((p, c) => p + c, 0)}, avg: ${this._durations.reduce((p, c) => p + c, 0) / this._durations.length})`);
|
|
this._worker.terminate();
|
|
}
|
|
get isBusy() {
|
|
return this._pending !== undefined;
|
|
}
|
|
next(files, options) {
|
|
if (this._pending !== undefined) {
|
|
throw new Error('BUSY');
|
|
}
|
|
return new Promise((resolve, reject) => {
|
|
this._pending = [resolve, reject, files, options, Date.now()];
|
|
const req = {
|
|
options,
|
|
tsSrcs: files.map(file => String(file.contents))
|
|
};
|
|
this._worker.postMessage(req);
|
|
});
|
|
}
|
|
}
|
|
class TscTranspiler {
|
|
_onError;
|
|
_cmdLine;
|
|
static P = Math.floor((0, node_os_1.cpus)().length * .5);
|
|
_outputFileNames;
|
|
onOutfile;
|
|
_workerPool = [];
|
|
_queue = [];
|
|
_allJobs = [];
|
|
constructor(logFn, _onError, configFilePath, _cmdLine) {
|
|
this._onError = _onError;
|
|
this._cmdLine = _cmdLine;
|
|
logFn('Transpile', `will use ${TscTranspiler.P} transpile worker`);
|
|
this._outputFileNames = new OutputFileNameOracle(_cmdLine, configFilePath);
|
|
}
|
|
async join() {
|
|
// wait for all penindg jobs
|
|
this._consumeQueue();
|
|
await Promise.allSettled(this._allJobs);
|
|
this._allJobs.length = 0;
|
|
// terminate all worker
|
|
this._workerPool.forEach(w => w.terminate());
|
|
this._workerPool.length = 0;
|
|
}
|
|
transpile(file) {
|
|
if (this._cmdLine.options.noEmit) {
|
|
// not doing ANYTHING here
|
|
return;
|
|
}
|
|
const newLen = this._queue.push(file);
|
|
if (newLen > TscTranspiler.P ** 2) {
|
|
this._consumeQueue();
|
|
}
|
|
}
|
|
_consumeQueue() {
|
|
if (this._queue.length === 0) {
|
|
// no work...
|
|
return;
|
|
}
|
|
// kinda LAZYily create workers
|
|
if (this._workerPool.length === 0) {
|
|
for (let i = 0; i < TscTranspiler.P; i++) {
|
|
this._workerPool.push(new TranspileWorker(file => this._outputFileNames.getOutputFileName(file)));
|
|
}
|
|
}
|
|
const freeWorker = this._workerPool.filter(w => !w.isBusy);
|
|
if (freeWorker.length === 0) {
|
|
// OK, they will pick up work themselves
|
|
return;
|
|
}
|
|
for (const worker of freeWorker) {
|
|
if (this._queue.length === 0) {
|
|
break;
|
|
}
|
|
const job = new Promise(resolve => {
|
|
const consume = () => {
|
|
const files = this._queue.splice(0, TscTranspiler.P);
|
|
if (files.length === 0) {
|
|
// DONE
|
|
resolve(undefined);
|
|
return;
|
|
}
|
|
// work on the NEXT file
|
|
// const [inFile, outFn] = req;
|
|
worker.next(files, { compilerOptions: this._cmdLine.options }).then(outFiles => {
|
|
if (this.onOutfile) {
|
|
outFiles.map(this.onOutfile, this);
|
|
}
|
|
consume();
|
|
}).catch(err => {
|
|
this._onError(err);
|
|
});
|
|
};
|
|
consume();
|
|
});
|
|
this._allJobs.push(job);
|
|
}
|
|
}
|
|
}
|
|
exports.TscTranspiler = TscTranspiler;
|
|
class ESBuildTranspiler {
|
|
_logFn;
|
|
_onError;
|
|
_cmdLine;
|
|
_outputFileNames;
|
|
_jobs = [];
|
|
onOutfile;
|
|
_transformOpts;
|
|
constructor(_logFn, _onError, configFilePath, _cmdLine) {
|
|
this._logFn = _logFn;
|
|
this._onError = _onError;
|
|
this._cmdLine = _cmdLine;
|
|
_logFn('Transpile', `will use ESBuild to transpile source files`);
|
|
this._outputFileNames = new OutputFileNameOracle(_cmdLine, configFilePath);
|
|
const isExtension = configFilePath.includes('extensions');
|
|
this._transformOpts = {
|
|
target: ['es2022'],
|
|
format: isExtension ? 'cjs' : 'esm',
|
|
platform: isExtension ? 'node' : undefined,
|
|
loader: 'ts',
|
|
sourcemap: 'inline',
|
|
tsconfigRaw: JSON.stringify({
|
|
compilerOptions: {
|
|
...this._cmdLine.options,
|
|
...{
|
|
module: isExtension ? ts.ModuleKind.CommonJS : undefined
|
|
}
|
|
}
|
|
}),
|
|
supported: {
|
|
'class-static-blocks': false, // SEE https://github.com/evanw/esbuild/issues/3823,
|
|
'dynamic-import': !isExtension, // see https://github.com/evanw/esbuild/issues/1281
|
|
'class-field': !isExtension
|
|
}
|
|
};
|
|
}
|
|
async join() {
|
|
const jobs = this._jobs.slice();
|
|
this._jobs.length = 0;
|
|
await Promise.allSettled(jobs);
|
|
}
|
|
transpile(file) {
|
|
if (!(file.contents instanceof Buffer)) {
|
|
throw Error('file.contents must be a Buffer');
|
|
}
|
|
const t1 = Date.now();
|
|
this._jobs.push(esbuild.transform(file.contents, {
|
|
...this._transformOpts,
|
|
sourcefile: file.path,
|
|
}).then(result => {
|
|
// check if output of a DTS-files isn't just "empty" and iff so
|
|
// skip this file
|
|
if (file.path.endsWith('.d.ts') && _isDefaultEmpty(result.code)) {
|
|
return;
|
|
}
|
|
const outBase = this._cmdLine.options.outDir ?? file.base;
|
|
const outPath = this._outputFileNames.getOutputFileName(file.path);
|
|
this.onOutfile(new Vinyl({
|
|
path: outPath,
|
|
base: outBase,
|
|
contents: Buffer.from(result.code),
|
|
}));
|
|
this._logFn('Transpile', `esbuild took ${Date.now() - t1}ms for ${file.path}`);
|
|
}).catch(err => {
|
|
this._onError(err);
|
|
}));
|
|
}
|
|
}
|
|
exports.ESBuildTranspiler = ESBuildTranspiler;
|
|
function _isDefaultEmpty(src) {
|
|
return src
|
|
.replace('"use strict";', '')
|
|
.replace(/\/\/# sourceMappingURL.*^/, '')
|
|
.replace(/\/\*[\s\S]*?\*\/|([^\\:]|^)\/\/.*$/gm, '$1')
|
|
.trim().length === 0;
|
|
}
|
|
//# sourceMappingURL=transpiler.js.map
|