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Merge pull request #159300 from microsoft/joh/swc
SWC experiments
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| { | ||
| "$schema": "http://json.schemastore.org/swcrc", | ||
| "exclude": "\\.js$", | ||
| "jsc": { | ||
| "parser": { | ||
| "syntax": "typescript", | ||
| "tsx": false, | ||
| "decorators": true | ||
| }, | ||
| "target": "es2020", | ||
| "loose": false, | ||
| "minify": { | ||
| "compress": false, | ||
| "mangle": false | ||
| } | ||
| }, | ||
| "module": { | ||
| "type": "amd", | ||
| "noInterop": true | ||
| }, | ||
| "minify": false | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| { | ||
| "$schema": "http://json.schemastore.org/swcrc", | ||
| "exclude": "\\.js$", | ||
| "jsc": { | ||
| "parser": { | ||
| "syntax": "typescript", | ||
| "tsx": false, | ||
| "decorators": true | ||
| }, | ||
| "target": "es2020", | ||
| "loose": false, | ||
| "minify": { | ||
| "compress": false, | ||
| "mangle": false | ||
| } | ||
| }, | ||
| "isModule": false, | ||
| "module": { | ||
| "type": "es6" | ||
| }, | ||
| "minify": false | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| "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.createSwcClientStream = void 0; | ||
| const child_process_1 = require("child_process"); | ||
| const stream_1 = require("stream"); | ||
| const path_1 = require("path"); | ||
| const util = require("util"); | ||
| const gulp = require("gulp"); | ||
| /** | ||
| * SWC transpile stream. Can be used as stream but `exec` is the prefered way because under the | ||
| * hood this simply shells out to swc-cli. There is room for improvement but this already works. | ||
| * Ideas | ||
| * * use API, not swc-cli | ||
| * * invoke binaries directly, don't go through swc-cli | ||
| * * understand how to configure both setups in one (https://github.com/swc-project/swc/issues/4989) | ||
| */ | ||
| function createSwcClientStream() { | ||
| const execAsync = util.promisify(child_process_1.exec); | ||
| const cwd = (0, path_1.join)(__dirname, '../../../'); | ||
| const srcDir = (0, path_1.join)(__dirname, '../../../src'); | ||
| const outDir = (0, path_1.join)(__dirname, '../../../out'); | ||
| const pathConfigAmd = (0, path_1.join)(__dirname, '.swcrc-amd'); | ||
| const pathConfigNoModule = (0, path_1.join)(__dirname, '.swcrc-no-mod'); | ||
| return new class extends stream_1.Readable { | ||
| constructor() { | ||
| super({ objectMode: true, highWaterMark: Number.MAX_SAFE_INTEGER }); | ||
| this._isStarted = false; | ||
| } | ||
| async exec(print) { | ||
| const t1 = Date.now(); | ||
| const errors = []; | ||
| try { | ||
| const data1 = await execAsync(`npx swc --config-file ${pathConfigAmd} ${srcDir}/ --out-dir ${outDir}`, { encoding: 'utf-8', cwd }); | ||
| errors.push(data1.stderr); | ||
| const data2 = await execAsync(`npx swc --config-file ${pathConfigNoModule} ${srcDir}/vs/base/worker/workerMain.ts --out-dir ${outDir}`, { encoding: 'utf-8', cwd }); | ||
| errors.push(data2.stderr); | ||
| return true; | ||
| } | ||
| catch (error) { | ||
| console.error(errors); | ||
| console.error(error); | ||
| this.destroy(error); | ||
| return false; | ||
| } | ||
| finally { | ||
| if (print) { | ||
| console.log(`DONE with SWC after ${Date.now() - t1}ms`); | ||
| } | ||
| } | ||
| } | ||
| async _read(_size) { | ||
| if (this._isStarted) { | ||
| return; | ||
| } | ||
| this._isStarted = true; | ||
| if (!this.exec()) { | ||
| this.push(null); | ||
| return; | ||
| } | ||
| for await (const file of gulp.src(`${outDir}/**/*.js`, { base: outDir })) { | ||
| this.push(file); | ||
| } | ||
| this.push(null); | ||
| } | ||
| }; | ||
| } | ||
| exports.createSwcClientStream = createSwcClientStream; | ||
| if (process.argv[1] === __filename) { | ||
| createSwcClientStream().exec(true); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /*--------------------------------------------------------------------------------------------- | ||
| * Copyright (c) Microsoft Corporation. All rights reserved. | ||
| * Licensed under the MIT License. See License.txt in the project root for license information. | ||
| *--------------------------------------------------------------------------------------------*/ | ||
|
|
||
| import { exec } from 'child_process'; | ||
| import { Readable } from 'stream'; | ||
| import { join } from 'path'; | ||
| import * as util from 'util'; | ||
| import * as gulp from 'gulp'; | ||
|
|
||
| /** | ||
| * SWC transpile stream. Can be used as stream but `exec` is the prefered way because under the | ||
| * hood this simply shells out to swc-cli. There is room for improvement but this already works. | ||
| * Ideas | ||
| * * use API, not swc-cli | ||
| * * invoke binaries directly, don't go through swc-cli | ||
| * * understand how to configure both setups in one (https://github.com/swc-project/swc/issues/4989) | ||
| */ | ||
| export function createSwcClientStream(): Readable & { exec(print?: boolean): Promise<boolean> } { | ||
|
|
||
| const execAsync = util.promisify(exec); | ||
|
|
||
| const cwd = join(__dirname, '../../../'); | ||
| const srcDir = join(__dirname, '../../../src'); | ||
| const outDir = join(__dirname, '../../../out'); | ||
|
|
||
| const pathConfigAmd = join(__dirname, '.swcrc-amd'); | ||
| const pathConfigNoModule = join(__dirname, '.swcrc-no-mod'); | ||
|
|
||
| return new class extends Readable { | ||
|
|
||
| private _isStarted = false; | ||
|
|
||
| constructor() { | ||
| super({ objectMode: true, highWaterMark: Number.MAX_SAFE_INTEGER }); | ||
| } | ||
|
|
||
| async exec(print?: boolean) { | ||
| const t1 = Date.now(); | ||
| const errors: string[] = []; | ||
| try { | ||
| const data1 = await execAsync(`npx swc --config-file ${pathConfigAmd} ${srcDir}/ --out-dir ${outDir}`, { encoding: 'utf-8', cwd }); | ||
| errors.push(data1.stderr); | ||
|
|
||
| const data2 = await execAsync(`npx swc --config-file ${pathConfigNoModule} ${srcDir}/vs/base/worker/workerMain.ts --out-dir ${outDir}`, { encoding: 'utf-8', cwd }); | ||
| errors.push(data2.stderr); | ||
| return true; | ||
| } catch (error) { | ||
| console.error(errors); | ||
| console.error(error); | ||
| this.destroy(error); | ||
| return false; | ||
| } finally { | ||
| if (print) { | ||
| console.log(`DONE with SWC after ${Date.now() - t1}ms`); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| async _read(_size: number): Promise<void> { | ||
| if (this._isStarted) { | ||
| return; | ||
| } | ||
| this._isStarted = true; | ||
| if (!this.exec()) { | ||
| this.push(null); | ||
| return; | ||
| } | ||
| for await (const file of gulp.src(`${outDir}/**/*.js`, { base: outDir })) { | ||
| this.push(file); | ||
| } | ||
| this.push(null); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| if (process.argv[1] === __filename) { | ||
| createSwcClientStream().exec(true); | ||
| } |
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