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"version": "1.2.58", - "resolved": "https://registry.npmjs.org/@swc/wasm/-/wasm-1.2.58.tgz", - "integrity": "sha512-3PAMVT+clB2xZsaVtQK2WjgeCftCxDO/0q8JCwW5g3CrLL/WBOCHyCKME3CzGz7V9zfw84QZZMpZY26gohhF/w==", + "version": "1.2.205", + "resolved": "https://registry.npmjs.org/@swc/wasm/-/wasm-1.2.205.tgz", + "integrity": "sha512-xRI7Lrg/v18EnJIHRDflD09bif4Ivc2W0dhRGtTmjdsSrCjJFrArDGaGttD2Fwuv7q1S4/uAWMLFHncwwSyO3Q==", "dev": true }, "@szmarczak/http-timer": { @@ -3583,6 +3575,12 @@ } } }, + "outdent": { + "version": "0.8.0", + "resolved": "https://registry.npmjs.org/outdent/-/outdent-0.8.0.tgz", + "integrity": "sha512-KiOAIsdpUTcAXuykya5fnVVT+/5uS0Q1mrkRHcF89tpieSmY33O/tmc54CqwA+bfhbtEfZUNLHaPUiB9X3jt1A==", + "dev": true + }, "p-cancelable": { "version": "1.1.0", "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-1.1.0.tgz", @@ -4670,9 +4668,9 @@ } }, "typescript": { - "version": "4.7.2", - "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.2.tgz", - "integrity": "sha512-Mamb1iX2FDUpcTRzltPxgWMKy3fhg0TN378ylbktPGPK/99KbDtMQ4W1hwgsbPAsG3a0xKa1vmw4VKZQbkvz5A==", + "version": "4.7.4", + "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.4.tgz", + "integrity": "sha512-C0WQT0gezHuw6AdY1M2jxUO83Rjf0HP7Sk1DtXj6j1EwkQNZrHAg2XPWlq62oqEhYvONq5pkC2Y9oPljWToLmQ==", "dev": true }, "typescript-json-schema": { diff --git a/package.json b/package.json index 7fe9bad62..0d7958f04 100644 --- a/package.json +++ b/package.json @@ -112,8 +112,8 @@ "homepage": "https://typestrong.org/ts-node", "devDependencies": { "@microsoft/api-extractor": "^7.19.4", - "@swc/core": ">=1.2.50", - "@swc/wasm": ">=1.2.50", + "@swc/core": ">=1.2.205", + "@swc/wasm": ">=1.2.205", "@types/diff": "^4.0.2", "@types/lodash": "^4.14.151", "@types/node": "13.13.5", @@ -131,6 +131,7 @@ "lodash": "^4.17.15", "ntypescript": "^1.201507091536.1", "nyc": "^15.0.1", + "outdent": "^0.8.0", "proper-lockfile": "^4.1.2", "proxyquire": "^2.0.0", "react": "^16.14.0", @@ -138,7 +139,7 @@ "semver": "^7.1.3", "throat": "^6.0.1", "typedoc": "^0.22.10", - "typescript": "4.7.2", + "typescript": "4.7.4", "typescript-json-schema": "^0.53.0", "util.promisify": "^1.0.1" }, diff --git a/src/test/helpers.ts b/src/test/helpers.ts index c4ea9e8a4..da86bddc2 100644 --- a/src/test/helpers.ts +++ b/src/test/helpers.ts @@ -99,6 +99,8 @@ export const tsSupportsStableNodeNextNode16 = // TS 4.5 is first version to understand .cts, .mts, .cjs, and .mjs extensions export const tsSupportsMtsCtsExtensions = semver.gte(ts.version, '4.5.0'); export const tsSupportsImportAssertions = semver.gte(ts.version, '4.5.0'); +// TS 4.1 added jsx=react-jsx and react-jsxdev: https://devblogs.microsoft.com/typescript/announcing-typescript-4-1/#react-17-jsx-factories +export const tsSupportsReact17JsxFactories = semver.gte(ts.version, '4.1.0'); //#endregion export const xfs = new NodeFS(fs); diff --git a/src/test/transpilers.spec.ts b/src/test/transpilers.spec.ts index 57174f5e8..1d64186a0 100644 --- a/src/test/transpilers.spec.ts +++ b/src/test/transpilers.spec.ts @@ -3,8 +3,15 @@ // Should consolidate them here. import { context } from './testlib'; -import { ctxTsNode, testsDirRequire } from './helpers'; +import { + ctxTsNode, + testsDirRequire, + tsSupportsImportAssertions, + tsSupportsReact17JsxFactories, +} from './helpers'; +import { createSwcOptions } from '../transpilers/swc'; import * as expect from 'expect'; +import { outdent } from 'outdent'; const test = context(ctxTsNode); @@ -44,4 +51,119 @@ test.suite('swc', (test) => { expect([...swcTranspiler.targetMapping.values()]).toContain(target); } }); + + test.suite('converts TS config to swc config', (test) => { + test.suite('jsx', (test) => { + const macro = test.macro( + (jsx: string, runtime?: string, development?: boolean) => [ + () => `jsx=${jsx}`, + async (t) => { + const tsNode = t.context.tsNodeUnderTest.create({ + compilerOptions: { + jsx, + }, + }); + const swcOptions = createSwcOptions( + tsNode.config.options, + undefined, + require('@swc/core'), + '@swc/core' + ); + expect(swcOptions.tsxOptions.jsc?.transform?.react).toBeDefined(); + expect( + swcOptions.tsxOptions.jsc?.transform?.react?.development + ).toBe(development); + expect(swcOptions.tsxOptions.jsc?.transform?.react?.runtime).toBe( + runtime + ); + }, + ] + ); + + test(macro, 'react', undefined, undefined); + test.suite('react 17 jsx factories', (test) => { + test.runIf(tsSupportsReact17JsxFactories); + test(macro, 'react-jsx', 'automatic', undefined); + test(macro, 'react-jsxdev', 'automatic', true); + }); + }); + }); + + const compileMacro = test.macro( + (compilerOptions: object, input: string, expectedOutput: string) => [ + (title?: string) => title ?? `${JSON.stringify(compilerOptions)}`, + async (t) => { + const code = t.context.tsNodeUnderTest + .create({ + swc: true, + skipProject: true, + compilerOptions: { + module: 'esnext', + ...compilerOptions, + }, + }) + .compile(input, 'input.tsx'); + expect(code.replace(/\/\/# sourceMappingURL.*/, '').trim()).toBe( + expectedOutput + ); + }, + ] + ); + + test.suite('transforms various forms of jsx', (test) => { + const input = outdent` + const div =
; + `; + + test( + compileMacro, + { jsx: 'react' }, + input, + `const div = /*#__PURE__*/ React.createElement("div", null);` + ); + test.suite('react 17 jsx factories', (test) => { + test.runIf(tsSupportsReact17JsxFactories); + test( + compileMacro, + { jsx: 'react-jsx' }, + input, + outdent` + import { jsx as _jsx } from "react/jsx-runtime"; + const div = /*#__PURE__*/ _jsx("div", {}); + ` + ); + test( + compileMacro, + { jsx: 'react-jsxdev' }, + input, + outdent` + import { jsxDEV as _jsxDEV } from "react/jsx-dev-runtime"; + const div = /*#__PURE__*/ _jsxDEV("div", {}, void 0, false, { + fileName: "input.tsx", + lineNumber: 1, + columnNumber: 13 + }, this); + ` + ); + }); + }); + + test.suite('preserves import assertions for json imports', (test) => { + test.runIf(tsSupportsImportAssertions); + test( + 'basic json import', + compileMacro, + { module: 'esnext' }, + outdent` + import document from './document.json' assert {type: 'json'}; + document; + `, + outdent` + import document from './document.json' assert { + type: 'json' + }; + document; + ` + ); + }); }); diff --git a/src/transpilers/swc.ts b/src/transpilers/swc.ts index 246b70f40..89e9bd496 100644 --- a/src/transpilers/swc.ts +++ b/src/transpilers/swc.ts @@ -2,7 +2,9 @@ import type * as ts from 'typescript'; import type * as swcWasm from '@swc/wasm'; import type * as swcTypes from '@swc/core'; import type { CreateTranspilerOptions, Transpiler } from './types'; +import type { NodeModuleEmitKind } from '..'; +type SwcInstance = typeof swcWasm; export interface SwcTranspilerOptions extends CreateTranspilerOptions { /** * swc compiler to use for compilation @@ -21,8 +23,11 @@ export function create(createOptions: SwcTranspilerOptions): Transpiler { } = createOptions; // Load swc compiler - let swcInstance: typeof swcWasm; + let swcInstance: SwcInstance; + // Used later in diagnostics; merely needs to be human-readable. + let swcDepName: string = 'swc'; if (typeof swc === 'string') { + swcDepName = swc; swcInstance = require(transpilerConfigLocalResolveHelper( swc, true @@ -30,10 +35,12 @@ export function create(createOptions: SwcTranspilerOptions): Transpiler { } else if (swc == null) { let swcResolved; try { - swcResolved = transpilerConfigLocalResolveHelper('@swc/core', true); + swcDepName = '@swc/core'; + swcResolved = transpilerConfigLocalResolveHelper(swcDepName, true); } catch (e) { try { - swcResolved = transpilerConfigLocalResolveHelper('@swc/wasm', true); + swcDepName = '@swc/wasm'; + swcResolved = transpilerConfigLocalResolveHelper(swcDepName, true); } catch (e) { throw new Error( 'swc compiler requires either @swc/core or @swc/wasm to be installed as a dependency. See https://typestrong.org/ts-node/docs/transpilers' @@ -46,107 +53,12 @@ export function create(createOptions: SwcTranspilerOptions): Transpiler { } // Prepare SWC options derived from typescript compiler options - const compilerOptions = config.options; - const { - esModuleInterop, - sourceMap, - importHelpers, - experimentalDecorators, - emitDecoratorMetadata, - target, - module, - jsxFactory, - jsxFragmentFactory, - strict, - alwaysStrict, - noImplicitUseStrict, - } = compilerOptions; - const nonTsxOptions = createSwcOptions(false); - const tsxOptions = createSwcOptions(true); - function createSwcOptions(isTsx: boolean): swcTypes.Options { - let swcTarget = targetMapping.get(target!) ?? 'es3'; - // Downgrade to lower target if swc does not support the selected target. - // Perhaps project has an older version of swc. - // TODO cache the results of this; slightly faster - let swcTargetIndex = swcTargets.indexOf(swcTarget); - for (; swcTargetIndex >= 0; swcTargetIndex--) { - try { - swcInstance.transformSync('', { - jsc: { target: swcTargets[swcTargetIndex] }, - }); - break; - } catch (e) {} - } - swcTarget = swcTargets[swcTargetIndex]; - const keepClassNames = target! >= /* ts.ScriptTarget.ES2016 */ 3; - const isNodeModuleKind = - module === ModuleKind.Node12 || module === ModuleKind.NodeNext; - // swc only supports these 4x module options [MUST_UPDATE_FOR_NEW_MODULEKIND] - const moduleType = - module === ModuleKind.CommonJS - ? 'commonjs' - : module === ModuleKind.AMD - ? 'amd' - : module === ModuleKind.UMD - ? 'umd' - : isNodeModuleKind && nodeModuleEmitKind === 'nodecjs' - ? 'commonjs' - : isNodeModuleKind && nodeModuleEmitKind === 'nodeesm' - ? 'es6' - : 'es6'; - // In swc: - // strictMode means `"use strict"` is *always* emitted for non-ES module, *never* for ES module where it is assumed it can be omitted. - // (this assumption is invalid, but that's the way swc behaves) - // tsc is a bit more complex: - // alwaysStrict will force emitting it always unless `import`/`export` syntax is emitted which implies it per the JS spec. - // if not alwaysStrict, will emit implicitly whenever module target is non-ES *and* transformed module syntax is emitted. - // For node, best option is to assume that all scripts are modules (commonjs or esm) and thus should get tsc's implicit strict behavior. - - // Always set strictMode, *unless* alwaysStrict is disabled and noImplicitUseStrict is enabled - const strictMode = - // if `alwaysStrict` is disabled, remembering that `strict` defaults `alwaysStrict` to true - (alwaysStrict === false || (alwaysStrict !== true && strict !== true)) && - // if noImplicitUseStrict is enabled - noImplicitUseStrict === true - ? false - : true; - return { - sourceMaps: sourceMap, - // isModule: true, - module: moduleType - ? ({ - noInterop: !esModuleInterop, - type: moduleType, - strictMode, - // For NodeNext and Node12, emit as CJS but do not transform dynamic imports - ignoreDynamic: nodeModuleEmitKind === 'nodecjs', - } as swcTypes.ModuleConfig) - : undefined, - swcrc: false, - jsc: { - externalHelpers: importHelpers, - parser: { - syntax: 'typescript', - tsx: isTsx, - decorators: experimentalDecorators, - dynamicImport: true, - }, - target: swcTarget, - transform: { - decoratorMetadata: emitDecoratorMetadata, - legacyDecorator: true, - react: { - throwIfNamespace: false, - development: false, - useBuiltins: false, - pragma: jsxFactory!, - pragmaFrag: jsxFragmentFactory!, - } as swcTypes.ReactConfig, - }, - keepClassNames, - } as swcTypes.JscConfig, - }; - } + const { nonTsxOptions, tsxOptions } = createSwcOptions( + config.options, + nodeModuleEmitKind, + swcInstance, + swcDepName + ); const transpile: Transpiler['transpile'] = (input, transpileOptions) => { const { fileName } = transpileOptions; @@ -207,6 +119,155 @@ const ModuleKind = { ES2015: 5, ES2020: 6, ESNext: 99, - Node12: 100, + Node16: 100, NodeNext: 199, } as const; + +const JsxEmit = { + ReactJSX: /* ts.JsxEmit.ReactJSX */ 4, + ReactJSXDev: /* ts.JsxEmit.ReactJSXDev */ 5, +} as const; + +/** + * Prepare SWC options derived from typescript compiler options. + * @internal exported for testing + */ +export function createSwcOptions( + compilerOptions: ts.CompilerOptions, + nodeModuleEmitKind: NodeModuleEmitKind | undefined, + swcInstance: SwcInstance, + swcDepName: string +) { + const { + esModuleInterop, + sourceMap, + importHelpers, + experimentalDecorators, + emitDecoratorMetadata, + target, + module, + jsx, + jsxFactory, + jsxFragmentFactory, + strict, + alwaysStrict, + noImplicitUseStrict, + } = compilerOptions; + + let swcTarget = targetMapping.get(target!) ?? 'es3'; + // Downgrade to lower target if swc does not support the selected target. + // Perhaps project has an older version of swc. + // TODO cache the results of this; slightly faster + let swcTargetIndex = swcTargets.indexOf(swcTarget); + for (; swcTargetIndex >= 0; swcTargetIndex--) { + try { + swcInstance.transformSync('', { + jsc: { target: swcTargets[swcTargetIndex] }, + }); + break; + } catch (e) {} + } + swcTarget = swcTargets[swcTargetIndex]; + const keepClassNames = target! >= /* ts.ScriptTarget.ES2016 */ 3; + const isNodeModuleKind = + module === ModuleKind.Node16 || module === ModuleKind.NodeNext; + // swc only supports these 4x module options [MUST_UPDATE_FOR_NEW_MODULEKIND] + const moduleType = + module === ModuleKind.CommonJS + ? 'commonjs' + : module === ModuleKind.AMD + ? 'amd' + : module === ModuleKind.UMD + ? 'umd' + : isNodeModuleKind && nodeModuleEmitKind === 'nodecjs' + ? 'commonjs' + : isNodeModuleKind && nodeModuleEmitKind === 'nodeesm' + ? 'es6' + : 'es6'; + // In swc: + // strictMode means `"use strict"` is *always* emitted for non-ES module, *never* for ES module where it is assumed it can be omitted. + // (this assumption is invalid, but that's the way swc behaves) + // tsc is a bit more complex: + // alwaysStrict will force emitting it always unless `import`/`export` syntax is emitted which implies it per the JS spec. + // if not alwaysStrict, will emit implicitly whenever module target is non-ES *and* transformed module syntax is emitted. + // For node, best option is to assume that all scripts are modules (commonjs or esm) and thus should get tsc's implicit strict behavior. + + // Always set strictMode, *unless* alwaysStrict is disabled and noImplicitUseStrict is enabled + const strictMode = + // if `alwaysStrict` is disabled, remembering that `strict` defaults `alwaysStrict` to true + (alwaysStrict === false || (alwaysStrict !== true && strict !== true)) && + // if noImplicitUseStrict is enabled + noImplicitUseStrict === true + ? false + : true; + + const jsxRuntime: swcTypes.ReactConfig['runtime'] = + jsx === JsxEmit.ReactJSX || jsx === JsxEmit.ReactJSXDev + ? 'automatic' + : undefined; + const jsxDevelopment: swcTypes.ReactConfig['development'] = + jsx === JsxEmit.ReactJSXDev ? true : undefined; + + const nonTsxOptions = createVariant(false); + const tsxOptions = createVariant(true); + return { nonTsxOptions, tsxOptions }; + + function createVariant(isTsx: boolean): swcTypes.Options { + const swcOptions: swcTypes.Options = { + sourceMaps: sourceMap, + // isModule: true, + module: moduleType + ? ({ + noInterop: !esModuleInterop, + type: moduleType, + strictMode, + // For NodeNext and Node12, emit as CJS but do not transform dynamic imports + ignoreDynamic: nodeModuleEmitKind === 'nodecjs', + } as swcTypes.ModuleConfig) + : undefined, + swcrc: false, + jsc: { + externalHelpers: importHelpers, + parser: { + syntax: 'typescript', + tsx: isTsx, + decorators: experimentalDecorators, + dynamicImport: true, + importAssertions: true, + }, + target: swcTarget, + transform: { + decoratorMetadata: emitDecoratorMetadata, + legacyDecorator: true, + react: { + throwIfNamespace: false, + development: jsxDevelopment, + useBuiltins: false, + pragma: jsxFactory!, + pragmaFrag: jsxFragmentFactory!, + runtime: jsxRuntime, + } as swcTypes.ReactConfig, + }, + keepClassNames, + experimental: { + keepImportAssertions: true, + }, + } as swcTypes.JscConfig, + }; + + // Throw a helpful error if swc version is old, for example, if it rejects `ignoreDynamic` + try { + swcInstance.transformSync('', swcOptions); + } catch (e) { + throw new Error( + `${swcDepName} threw an error when attempting to validate swc compiler options.\n` + + 'You may be using an old version of swc which does not support the options used by ts-node.\n' + + 'Try upgrading to the latest version of swc.\n' + + 'Error message from swc:\n' + + (e as Error)?.message + ); + } + + return swcOptions; + } +}