ts-node-lite
Version:
TypeScript execution environment for node.js, with source map support
798 lines • 38.9 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.createEsmHooks = exports.createFromPreloadedConfig = exports.create = exports.register = exports.TSError = exports.DEFAULTS = exports.VERSION = exports.debug = exports.INSPECT_CUSTOM = exports.env = exports.REGISTER_INSTANCE = void 0;
const path_1 = require("path");
const module_1 = require("module");
const util = require("util");
const url_1 = require("url");
const util_1 = require("./util");
const configuration_1 = require("./configuration");
const module_type_classifier_1 = require("./module-type-classifier");
const resolver_functions_1 = require("./resolver-functions");
const cjs_resolve_hooks_1 = require("./cjs-resolve-hooks");
const node_module_type_classifier_1 = require("./node-module-type-classifier");
const file_extensions_1 = require("./file-extensions");
const ts_transpile_module_1 = require("./ts-transpile-module");
const node_internal_modules_cjs_loader_1 = require("../dist-raw/node-internal-modules-cjs-loader");
const engineSupportsPackageTypeField = true;
/**
* Registered `ts-node` instance information.
*/
exports.REGISTER_INSTANCE = Symbol.for('ts-node.register.instance');
/** @internal */
exports.env = process.env;
/**
* @internal
*/
exports.INSPECT_CUSTOM = util.inspect.custom || 'inspect';
/**
* Debugging `ts-node`.
*/
const shouldDebug = (0, util_1.yn)(exports.env.TS_NODE_DEBUG);
/** @internal */
exports.debug = shouldDebug
? (...args) => console.log(`[ts-node ${new Date().toISOString()}]`, ...args)
: () => undefined;
const debugFn = shouldDebug
? (key, fn) => {
let i = 0;
return (x) => {
(0, exports.debug)(key, x, ++i);
return fn(x);
};
}
: (_, fn) => fn;
/**
* Export the current version.
*/
exports.VERSION = require('../package.json').version;
/**
* Default register options, including values specified via environment
* variables.
* @internal
*/
exports.DEFAULTS = {
cwd: exports.env.TS_NODE_CWD ?? exports.env.TS_NODE_DIR,
emit: (0, util_1.yn)(exports.env.TS_NODE_EMIT),
scope: (0, util_1.yn)(exports.env.TS_NODE_SCOPE),
scopeDir: exports.env.TS_NODE_SCOPE_DIR,
files: (0, util_1.yn)(exports.env.TS_NODE_FILES),
pretty: (0, util_1.yn)(exports.env.TS_NODE_PRETTY),
compiler: exports.env.TS_NODE_COMPILER,
compilerOptions: (0, util_1.parse)(exports.env.TS_NODE_COMPILER_OPTIONS),
ignore: (0, util_1.split)(exports.env.TS_NODE_IGNORE),
project: exports.env.TS_NODE_PROJECT,
skipProject: (0, util_1.yn)(exports.env.TS_NODE_SKIP_PROJECT),
skipIgnore: (0, util_1.yn)(exports.env.TS_NODE_SKIP_IGNORE),
preferTsExts: (0, util_1.yn)(exports.env.TS_NODE_PREFER_TS_EXTS),
ignoreDiagnostics: (0, util_1.split)(exports.env.TS_NODE_IGNORE_DIAGNOSTICS),
transpileOnly: (0, util_1.yn)(exports.env.TS_NODE_TRANSPILE_ONLY),
typeCheck: (0, util_1.yn)(exports.env.TS_NODE_TYPE_CHECK),
compilerHost: (0, util_1.yn)(exports.env.TS_NODE_COMPILER_HOST),
logError: (0, util_1.yn)(exports.env.TS_NODE_LOG_ERROR),
tsTrace: console.log.bind(console),
};
/**
* TypeScript diagnostics error.
*/
class TSError extends Error {
constructor(diagnosticText, diagnosticCodes, diagnostics = []) {
super(`⨯ Unable to compile TypeScript:\n${diagnosticText}`);
this.diagnosticCodes = diagnosticCodes;
this.name = 'TSError';
Object.defineProperty(this, 'diagnosticText', {
configurable: true,
writable: true,
value: diagnosticText,
});
Object.defineProperty(this, 'diagnostics', {
configurable: true,
writable: true,
value: diagnostics,
});
}
/**
* @internal
*/
[exports.INSPECT_CUSTOM]() {
return this.diagnosticText;
}
}
exports.TSError = TSError;
const TS_NODE_SERVICE_BRAND = Symbol('TS_NODE_SERVICE_BRAND');
function register(serviceOrOpts) {
// Is this a Service or a RegisterOptions?
let service = serviceOrOpts;
if (!serviceOrOpts?.[TS_NODE_SERVICE_BRAND]) {
// Not a service; is options
service = create((serviceOrOpts ?? {}));
}
const originalJsHandler = require.extensions['.js'];
// Expose registered instance globally.
process[exports.REGISTER_INSTANCE] = service;
// Register the extensions.
registerExtensions(service.options.preferTsExts, service.extensions.compiled, service, originalJsHandler);
(0, cjs_resolve_hooks_1.installCommonjsResolveHooksIfNecessary)(service);
service.installSourceMapSupport();
// Require specified modules before start-up.
module_1.Module._preloadModules(service.options.require);
return service;
}
exports.register = register;
/**
* Create TypeScript compiler instance.
*
* @category Basic
*/
function create(rawOptions = {}) {
const foundConfigResult = (0, configuration_1.findAndReadConfig)(rawOptions);
return createFromPreloadedConfig(foundConfigResult);
}
exports.create = create;
/** @internal */
function createFromPreloadedConfig(foundConfigResult) {
const { configFilePath, cwd, options, config, compiler, projectLocalResolveDir, optionBasePaths } = foundConfigResult;
const projectLocalResolveHelper = (0, util_1.createProjectLocalResolveHelper)(projectLocalResolveDir);
const ts = (0, configuration_1.loadCompiler)(compiler);
const readFile = options.readFile || ts.sys.readFile;
const fileExists = options.fileExists || ts.sys.fileExists;
// typeCheck can override transpileOnly, useful for CLI flag to override config file
const transpileOnly = options.transpileOnly === true && options.typeCheck !== true;
const transformers = options.transformers || undefined;
const diagnosticFilters = [
{
appliesToAllFiles: true,
filenamesAbsolute: [],
diagnosticsIgnored: [
6059,
18002,
18003,
...(options.experimentalTsImportSpecifiers
? [
2691, // "An import path cannot end with a '.ts' extension. Consider importing '<specifier without ext>' instead."
]
: []),
...(options.ignoreDiagnostics || []),
].map(Number),
},
];
const configDiagnosticList = filterDiagnostics(config.errors, diagnosticFilters);
const outputCache = new Map();
const configFileDirname = configFilePath ? (0, path_1.dirname)(configFilePath) : null;
const scopeDir = options.scopeDir ?? config.options.rootDir ?? configFileDirname ?? cwd;
const ignoreBaseDir = configFileDirname ?? cwd;
const isScoped = options.scope ? (fileName) => (0, path_1.relative)(scopeDir, fileName).charAt(0) !== '.' : () => true;
const shouldIgnore = createIgnore(ignoreBaseDir, options.skipIgnore ? [] : (options.ignore || ['(?:^|/)node_modules/']).map((str) => new RegExp(str)));
const diagnosticHost = {
getNewLine: () => ts.sys.newLine,
getCurrentDirectory: () => cwd,
// TODO switch to getCanonicalFileName we already create later in scope
getCanonicalFileName: ts.sys.useCaseSensitiveFileNames ? (x) => x : (x) => x.toLowerCase(),
};
if (options.transpileOnly && typeof transformers === 'function') {
throw new TypeError('Transformers function is unavailable in "--transpile-only"');
}
// Install source map support and read from memory cache.
function installSourceMapSupport() {
const sourceMapSupport = require('@cspotcode/source-map-support');
sourceMapSupport.install({
environment: 'node',
retrieveFile(pathOrUrl) {
let path = pathOrUrl;
// If it's a file URL, convert to local path
// I could not find a way to handle non-URLs except to swallow an error
if (path.startsWith('file://')) {
try {
path = (0, url_1.fileURLToPath)(path);
}
catch (e) {
/* swallow error */
}
}
path = (0, util_1.normalizeSlashes)(path);
return outputCache.get(path)?.content || '';
},
redirectConflictingLibrary: true,
onConflictingLibraryRedirect(request, parent, isMain, options, redirectedRequest) {
(0, exports.debug)(`Redirected an attempt to require source-map-support to instead receive @cspotcode/source-map-support. "${parent.filename}" attempted to require or resolve "${request}" and was redirected to "${redirectedRequest}".`);
},
});
}
const shouldHavePrettyErrors = options.pretty === undefined ? process.stdout.isTTY : options.pretty;
const formatDiagnostics = shouldHavePrettyErrors
? ts.formatDiagnosticsWithColorAndContext || ts.formatDiagnostics
: ts.formatDiagnostics;
function createTSError(diagnostics) {
const diagnosticText = formatDiagnostics(diagnostics, diagnosticHost);
const diagnosticCodes = diagnostics.map((x) => x.code);
return new TSError(diagnosticText, diagnosticCodes, diagnostics);
}
function reportTSError(configDiagnosticList) {
const error = createTSError(configDiagnosticList);
if (options.logError) {
// Print error in red color and continue execution.
console.error('\x1b[31m%s\x1b[0m', error);
}
else {
// Throw error and exit the script.
throw error;
}
}
// Render the configuration errors.
if (configDiagnosticList.length)
reportTSError(configDiagnosticList);
const jsxEmitPreserve = config.options.jsx === ts.JsxEmit.Preserve;
/**
* Get the extension for a transpiled file.
* [MUST_UPDATE_FOR_NEW_FILE_EXTENSIONS]
*/
function getEmitExtension(path) {
const lastDotIndex = path.lastIndexOf('.');
if (lastDotIndex >= 0) {
const ext = path.slice(lastDotIndex);
switch (ext) {
case '.js':
case '.ts':
return '.js';
case '.jsx':
case '.tsx':
return jsxEmitPreserve ? '.jsx' : '.js';
case '.mjs':
case '.mts':
return '.mjs';
case '.cjs':
case '.cts':
return '.cjs';
}
}
return '.js';
}
/**
* Get output from TS compiler w/typechecking. `undefined` in `transpileOnly`
* mode.
*/
let getOutput;
let getTypeInfo;
const getCanonicalFileName = ts.createGetCanonicalFileName(ts.sys.useCaseSensitiveFileNames);
const moduleTypeClassifier = (0, module_type_classifier_1.createModuleTypeClassifier)({
basePath: options.optionBasePaths?.moduleTypes,
patterns: options.moduleTypes,
});
const extensions = (0, file_extensions_1.getExtensions)(config, options, ts.version);
// Use full language services when the fast option is disabled.
if (!transpileOnly) {
const fileContents = new Map();
const rootFileNames = new Set(config.fileNames);
const cachedReadFile = (0, util_1.cachedLookup)(debugFn('readFile', readFile));
// Use language services by default
if (!options.compilerHost) {
let projectVersion = 1;
const fileVersions = new Map(Array.from(rootFileNames).map((fileName) => [fileName, 0]));
const getCustomTransformers = () => {
if (typeof transformers === 'function') {
const program = service.getProgram();
return program ? transformers(program) : undefined;
}
return transformers;
};
// Create the compiler host for type checking.
const serviceHost = {
getProjectVersion: () => String(projectVersion),
getScriptFileNames: () => Array.from(rootFileNames),
getScriptVersion: (fileName) => {
const version = fileVersions.get(fileName);
return version ? version.toString() : '';
},
getScriptSnapshot(fileName) {
// TODO ordering of this with getScriptVersion? Should they sync up?
let contents = fileContents.get(fileName);
// Read contents into TypeScript memory cache.
if (contents === undefined) {
contents = cachedReadFile(fileName);
if (contents === undefined)
return;
fileVersions.set(fileName, 1);
fileContents.set(fileName, contents);
projectVersion++;
}
return ts.ScriptSnapshot.fromString(contents);
},
readFile: cachedReadFile,
readDirectory: ts.sys.readDirectory,
getDirectories: (0, util_1.cachedLookup)(debugFn('getDirectories', ts.sys.getDirectories)),
fileExists: (0, util_1.cachedLookup)(debugFn('fileExists', fileExists)),
directoryExists: (0, util_1.cachedLookup)(debugFn('directoryExists', ts.sys.directoryExists)),
realpath: ts.sys.realpath ? (0, util_1.cachedLookup)(debugFn('realpath', ts.sys.realpath)) : undefined,
getNewLine: () => ts.sys.newLine,
useCaseSensitiveFileNames: () => ts.sys.useCaseSensitiveFileNames,
getCurrentDirectory: () => cwd,
getCompilationSettings: () => config.options,
getDefaultLibFileName: () => ts.getDefaultLibFilePath(config.options),
getCustomTransformers: getCustomTransformers,
trace: options.tsTrace,
};
const { resolveModuleNames, getResolvedModuleWithFailedLookupLocationsFromCache, resolveTypeReferenceDirectives, isFileKnownToBeInternal, markBucketOfFilenameInternal, } = (0, resolver_functions_1.createResolverFunctions)({
host: serviceHost,
getCanonicalFileName,
ts,
cwd,
config,
projectLocalResolveHelper,
options,
extensions,
});
serviceHost.resolveModuleNames = resolveModuleNames;
serviceHost.getResolvedModuleWithFailedLookupLocationsFromCache =
getResolvedModuleWithFailedLookupLocationsFromCache;
serviceHost.resolveTypeReferenceDirectives = resolveTypeReferenceDirectives;
const registry = ts.createDocumentRegistry(ts.sys.useCaseSensitiveFileNames, cwd);
const service = ts.createLanguageService(serviceHost, registry);
const updateMemoryCache = (contents, fileName) => {
// Add to `rootFiles` as necessary, either to make TS include a file it has not seen,
// or to trigger a re-classification of files from external to internal.
if (!rootFileNames.has(fileName) && !isFileKnownToBeInternal(fileName)) {
markBucketOfFilenameInternal(fileName);
rootFileNames.add(fileName);
// Increment project version for every change to rootFileNames.
projectVersion++;
}
const previousVersion = fileVersions.get(fileName) || 0;
const previousContents = fileContents.get(fileName);
// Avoid incrementing cache when nothing has changed.
if (contents !== previousContents) {
fileVersions.set(fileName, previousVersion + 1);
fileContents.set(fileName, contents);
// Increment project version for every file change.
projectVersion++;
}
};
let previousProgram = undefined;
getOutput = (code, fileName) => {
updateMemoryCache(code, fileName);
const programBefore = service.getProgram();
if (programBefore !== previousProgram) {
(0, exports.debug)(`compiler rebuilt Program instance when getting output for ${fileName}`);
}
const output = service.getEmitOutput(fileName);
// Get the relevant diagnostics - this is 3x faster than `getPreEmitDiagnostics`.
const diagnostics = service.getSemanticDiagnostics(fileName).concat(service.getSyntacticDiagnostics(fileName));
const programAfter = service.getProgram();
(0, exports.debug)('invariant: Is service.getProject() identical before and after getting emit output and diagnostics? (should always be true) ', programBefore === programAfter);
previousProgram = programAfter;
const diagnosticList = filterDiagnostics(diagnostics, diagnosticFilters);
if (diagnosticList.length)
reportTSError(diagnosticList);
if (output.emitSkipped) {
return [undefined, undefined, true];
}
// Throw an error when requiring `.d.ts` files.
if (output.outputFiles.length === 0) {
throw new TypeError(`Unable to require file: ${(0, path_1.relative)(cwd, fileName)}\n` +
'This is usually the result of a faulty configuration or import. ' +
'Make sure there is a `.js`, `.json` or other executable extension with ' +
'loader attached before `ts-node` available.');
}
return [output.outputFiles[1].text, output.outputFiles[0].text, false];
};
getTypeInfo = (code, fileName, position) => {
const normalizedFileName = (0, util_1.normalizeSlashes)(fileName);
updateMemoryCache(code, normalizedFileName);
const info = service.getQuickInfoAtPosition(normalizedFileName, position);
const name = ts.displayPartsToString(info ? info.displayParts : []);
const comment = ts.displayPartsToString(info ? info.documentation : []);
return { name, comment };
};
}
else {
const sys = {
...ts.sys,
...diagnosticHost,
readFile: (fileName) => {
const cacheContents = fileContents.get(fileName);
if (cacheContents !== undefined)
return cacheContents;
const contents = cachedReadFile(fileName);
if (contents)
fileContents.set(fileName, contents);
return contents;
},
readDirectory: ts.sys.readDirectory,
getDirectories: (0, util_1.cachedLookup)(debugFn('getDirectories', ts.sys.getDirectories)),
fileExists: (0, util_1.cachedLookup)(debugFn('fileExists', fileExists)),
directoryExists: (0, util_1.cachedLookup)(debugFn('directoryExists', ts.sys.directoryExists)),
resolvePath: (0, util_1.cachedLookup)(debugFn('resolvePath', ts.sys.resolvePath)),
realpath: ts.sys.realpath ? (0, util_1.cachedLookup)(debugFn('realpath', ts.sys.realpath)) : undefined,
};
const host = ts.createIncrementalCompilerHost(config.options, sys);
host.trace = options.tsTrace;
const { resolveModuleNames, resolveTypeReferenceDirectives, isFileKnownToBeInternal, markBucketOfFilenameInternal, } = (0, resolver_functions_1.createResolverFunctions)({
host,
cwd,
config,
ts,
getCanonicalFileName,
projectLocalResolveHelper,
options,
extensions,
});
host.resolveModuleNames = resolveModuleNames;
host.resolveTypeReferenceDirectives = resolveTypeReferenceDirectives;
let builderProgram = ts.createIncrementalProgram({
rootNames: Array.from(rootFileNames),
options: config.options,
host,
configFileParsingDiagnostics: config.errors,
projectReferences: config.projectReferences,
});
// Read and cache custom transformers.
const customTransformers = typeof transformers === 'function' ? transformers(builderProgram.getProgram()) : transformers;
// Set the file contents into cache manually.
const updateMemoryCache = (contents, fileName) => {
const previousContents = fileContents.get(fileName);
const contentsChanged = previousContents !== contents;
if (contentsChanged) {
fileContents.set(fileName, contents);
}
// Add to `rootFiles` when discovered by compiler for the first time.
let addedToRootFileNames = false;
if (!rootFileNames.has(fileName) && !isFileKnownToBeInternal(fileName)) {
markBucketOfFilenameInternal(fileName);
rootFileNames.add(fileName);
addedToRootFileNames = true;
}
// Update program when file changes.
if (addedToRootFileNames || contentsChanged) {
builderProgram = ts.createEmitAndSemanticDiagnosticsBuilderProgram(Array.from(rootFileNames), config.options, host, builderProgram, config.errors, config.projectReferences);
}
};
getOutput = (code, fileName) => {
let outText = '';
let outMap = '';
updateMemoryCache(code, fileName);
const sourceFile = builderProgram.getSourceFile(fileName);
if (!sourceFile)
throw new TypeError(`Unable to read file: ${fileName}`);
const program = builderProgram.getProgram();
const diagnostics = ts.getPreEmitDiagnostics(program, sourceFile);
const diagnosticList = filterDiagnostics(diagnostics, diagnosticFilters);
if (diagnosticList.length)
reportTSError(diagnosticList);
const result = builderProgram.emit(sourceFile, (path, file, writeByteOrderMark) => {
if (path.endsWith('.map')) {
outMap = file;
}
else {
outText = file;
}
if (options.emit)
sys.writeFile(path, file, writeByteOrderMark);
}, undefined, undefined, customTransformers);
if (result.emitSkipped) {
return [undefined, undefined, true];
}
// Throw an error when requiring files that cannot be compiled.
if (outText === '') {
if (program.isSourceFileFromExternalLibrary(sourceFile)) {
throw new TypeError(`Unable to compile file from external library: ${(0, path_1.relative)(cwd, fileName)}`);
}
throw new TypeError(`Unable to require file: ${(0, path_1.relative)(cwd, fileName)}\n` +
'This is usually the result of a faulty configuration or import. ' +
'Make sure there is a `.js`, `.json` or other executable extension with ' +
'loader attached before `ts-node` available.');
}
return [outText, outMap, false];
};
getTypeInfo = (code, fileName, position) => {
const normalizedFileName = (0, util_1.normalizeSlashes)(fileName);
updateMemoryCache(code, normalizedFileName);
const sourceFile = builderProgram.getSourceFile(normalizedFileName);
if (!sourceFile)
throw new TypeError(`Unable to read file: ${fileName}`);
const node = getTokenAtPosition(ts, sourceFile, position);
const checker = builderProgram.getProgram().getTypeChecker();
const symbol = checker.getSymbolAtLocation(node);
if (!symbol)
return { name: '', comment: '' };
const type = checker.getTypeOfSymbolAtLocation(symbol, node);
const signatures = [...type.getConstructSignatures(), ...type.getCallSignatures()];
return {
name: signatures.length
? signatures.map((x) => checker.signatureToString(x)).join('\n')
: checker.typeToString(type),
comment: ts.displayPartsToString(symbol ? symbol.getDocumentationComment(checker) : []),
};
};
// Write `.tsbuildinfo` when `--build` is enabled.
if (options.emit && config.options.incremental) {
process.on('exit', () => {
// Emits `.tsbuildinfo` to filesystem.
builderProgram.getProgram().emitBuildInfo();
});
}
}
}
else {
getTypeInfo = () => {
throw new TypeError('Type information is unavailable in "--transpile-only"');
};
}
function createTranspileOnlyGetOutputFunction(overrideModuleType, nodeModuleEmitKind) {
const compilerOptions = { ...config.options };
if (overrideModuleType !== undefined)
compilerOptions.module = overrideModuleType;
let tsTranspileModule = (0, util_1.versionGteLt)(ts.version, '4.7.0')
? (0, ts_transpile_module_1.createTsTranspileModule)(ts, {
compilerOptions,
reportDiagnostics: true,
transformers: transformers,
})
: undefined;
return (code, fileName) => {
let result;
if (tsTranspileModule) {
result = tsTranspileModule(code, {
fileName,
}, nodeModuleEmitKind === 'nodeesm' ? 'module' : 'commonjs');
}
else {
result = ts.transpileModule(code, {
fileName,
compilerOptions,
reportDiagnostics: true,
transformers: transformers,
});
}
const diagnosticList = filterDiagnostics(result.diagnostics || [], diagnosticFilters);
if (diagnosticList.length)
reportTSError(diagnosticList);
return [result.outputText, result.sourceMapText ?? '{}', false];
};
}
// When true, these mean that a `moduleType` override will cause a different emit
// than the TypeScript compiler, so we *must* overwrite the emit.
const shouldOverwriteEmitWhenForcingCommonJS = config.options.module !== ts.ModuleKind.CommonJS;
// [MUST_UPDATE_FOR_NEW_MODULEKIND]
const shouldOverwriteEmitWhenForcingEsm = !(config.options.module === ts.ModuleKind.ES2015 ||
(ts.ModuleKind.ES2020 && config.options.module === ts.ModuleKind.ES2020) ||
(ts.ModuleKind.ES2022 && config.options.module === ts.ModuleKind.ES2022) ||
config.options.module === ts.ModuleKind.ESNext);
/**
* node16 or nodenext
* [MUST_UPDATE_FOR_NEW_MODULEKIND]
*/
const isNodeModuleType = (ts.ModuleKind.Node16 && config.options.module === ts.ModuleKind.Node16) ||
(ts.ModuleKind.NodeNext && config.options.module === ts.ModuleKind.NodeNext);
const getOutputForceCommonJS = createTranspileOnlyGetOutputFunction(ts.ModuleKind.CommonJS);
const getOutputForceNodeCommonJS = createTranspileOnlyGetOutputFunction(ts.ModuleKind.NodeNext, 'nodecjs');
const getOutputForceNodeESM = createTranspileOnlyGetOutputFunction(ts.ModuleKind.NodeNext, 'nodeesm');
// [MUST_UPDATE_FOR_NEW_MODULEKIND]
const getOutputForceESM = createTranspileOnlyGetOutputFunction(ts.ModuleKind.ES2022 || ts.ModuleKind.ES2020 || ts.ModuleKind.ES2015);
const getOutputTranspileOnly = createTranspileOnlyGetOutputFunction();
// Create a simple TypeScript compiler proxy.
function compile(code, fileName, lineOffset = 0) {
const normalizedFileName = (0, util_1.normalizeSlashes)(fileName);
const classification = moduleTypeClassifier.classifyModuleByModuleTypeOverrides(normalizedFileName);
let value = '';
let sourceMap = '';
let emitSkipped = true;
if (getOutput) {
// Must always call normal getOutput to throw typechecking errors
[value, sourceMap, emitSkipped] = getOutput(code, normalizedFileName);
}
// If module classification contradicts the above, call the relevant transpiler
if (classification.moduleType === 'cjs' && (shouldOverwriteEmitWhenForcingCommonJS || emitSkipped)) {
[value, sourceMap] = getOutputForceCommonJS(code, normalizedFileName);
}
else if (classification.moduleType === 'esm' && (shouldOverwriteEmitWhenForcingEsm || emitSkipped)) {
[value, sourceMap] = getOutputForceESM(code, normalizedFileName);
}
else if (emitSkipped) {
// Happens when ts compiler skips emit or in transpileOnly mode
const classification = (0, node_module_type_classifier_1.classifyModule)(fileName, isNodeModuleType);
[value, sourceMap] =
classification === 'nodecjs'
? getOutputForceNodeCommonJS(code, normalizedFileName)
: classification === 'nodeesm'
? getOutputForceNodeESM(code, normalizedFileName)
: classification === 'cjs'
? getOutputForceCommonJS(code, normalizedFileName)
: classification === 'esm'
? getOutputForceESM(code, normalizedFileName)
: getOutputTranspileOnly(code, normalizedFileName);
}
const output = updateOutput(value, normalizedFileName, sourceMap, getEmitExtension);
outputCache.set(normalizedFileName, { content: output });
return output;
}
let active = true;
const enabled = (enabled) => (enabled === undefined ? active : (active = !!enabled));
const ignored = (fileName) => {
if (!active)
return true;
const ext = (0, path_1.extname)(fileName);
if (extensions.compiled.includes(ext)) {
return !isScoped(fileName) || shouldIgnore(fileName);
}
return true;
};
function addDiagnosticFilter(filter) {
diagnosticFilters.push({
...filter,
filenamesAbsolute: filter.filenamesAbsolute.map((f) => (0, util_1.normalizeSlashes)(f)),
});
}
const getNodeEsmResolver = (0, util_1.once)(() => require('../dist-raw/node-internal-modules-esm-resolve').createResolve({
extensions,
preferTsExts: options.preferTsExts,
tsNodeExperimentalSpecifierResolution: options.experimentalSpecifierResolution,
}));
const getNodeEsmGetFormat = (0, util_1.once)(() => require('../dist-raw/node-internal-modules-esm-get_format').createGetFormat(options.experimentalSpecifierResolution, getNodeEsmResolver()));
const getNodeCjsLoader = (0, util_1.once)(() => require('../dist-raw/node-internal-modules-cjs-loader').createCjsLoader({
extensions,
preferTsExts: options.preferTsExts,
nodeEsmResolver: getNodeEsmResolver(),
}));
return {
[TS_NODE_SERVICE_BRAND]: true,
ts,
compilerPath: compiler,
config,
compile,
getTypeInfo,
ignored,
enabled,
options,
configFilePath,
moduleTypeClassifier,
addDiagnosticFilter,
installSourceMapSupport,
transpileOnly,
projectLocalResolveHelper,
getNodeEsmResolver,
getNodeEsmGetFormat,
getNodeCjsLoader,
extensions,
};
}
exports.createFromPreloadedConfig = createFromPreloadedConfig;
/**
* Check if the filename should be ignored.
*/
function createIgnore(ignoreBaseDir, ignore) {
return (fileName) => {
const relname = (0, path_1.relative)(ignoreBaseDir, fileName);
const path = (0, util_1.normalizeSlashes)(relname);
return ignore.some((x) => x.test(path));
};
}
/**
* Register the extensions to support when importing files.
*/
function registerExtensions(preferTsExts, extensions, service, originalJsHandler) {
const exts = new Set(extensions);
// Can't add these extensions cuz would allow omitting file extension; node requires ext for .cjs and .mjs
// Unless they're already registered by something else (nyc does this):
// then we *must* hook them or else our transformer will not be called.
for (const cannotAdd of ['.mts', '.cts', '.mjs', '.cjs']) {
if (exts.has(cannotAdd) && !(0, util_1.hasOwnProperty)(require.extensions, cannotAdd)) {
// Unrecognized file exts can be transformed via the `.js` handler.
exts.add('.js');
exts.delete(cannotAdd);
}
}
// Register new extensions.
for (const ext of exts) {
registerExtension(ext, service, originalJsHandler);
}
if (preferTsExts) {
const preferredExtensions = new Set([...exts, ...Object.keys(require.extensions)]);
// Re-sort iteration order of Object.keys()
for (const ext of preferredExtensions) {
const old = Object.getOwnPropertyDescriptor(require.extensions, ext);
delete require.extensions[ext];
Object.defineProperty(require.extensions, ext, old);
}
}
}
/**
* Register the extension for node.
*/
function registerExtension(ext, service, originalHandler) {
const old = require.extensions[ext] || originalHandler;
require.extensions[ext] = function (m, filename) {
if (service.ignored(filename))
return old(m, filename);
(0, node_internal_modules_cjs_loader_1.assertScriptCanLoadAsCJS)(service, m, filename);
const _compile = m._compile;
m._compile = function (code, fileName) {
(0, exports.debug)('module._compile', fileName);
const result = service.compile(code, fileName);
return _compile.call(this, result, fileName);
};
return old(m, filename);
};
}
/**
* Update the output remapping the source map.
*/
function updateOutput(outputText, fileName, sourceMap, getEmitExtension) {
const base64Map = Buffer.from(updateSourceMap(sourceMap, fileName), 'utf8').toString('base64');
const sourceMapContent = `//# sourceMappingURL=data:application/json;charset=utf-8;base64,${base64Map}`;
// Expected form: `//# sourceMappingURL=foo bar.js.map` or `//# sourceMappingURL=foo%20bar.js.map` for input file "foo bar.tsx"
// Percent-encoding behavior added in TS 4.1.1: https://github.com/microsoft/TypeScript/issues/40951
const prefix = '//# sourceMappingURL=';
const prefixLength = prefix.length;
const baseName = /*foo.tsx*/ (0, path_1.basename)(fileName);
const extName = /*.tsx*/ (0, path_1.extname)(fileName);
const extension = /*.js*/ getEmitExtension(fileName);
const sourcemapFilename = baseName.slice(0, -extName.length) + extension + '.map';
const sourceMapLengthWithoutPercentEncoding = prefixLength + sourcemapFilename.length;
/*
* Only rewrite if existing directive exists at the location we expect, to support:
* a) compilers that do not append a sourcemap directive
* b) situations where we did the math wrong
* Not ideal, but appending our sourcemap *after* a pre-existing sourcemap still overrides, so the end-user is happy.
*/
if (outputText.substr(-sourceMapLengthWithoutPercentEncoding, prefixLength) === prefix) {
return outputText.slice(0, -sourceMapLengthWithoutPercentEncoding) + sourceMapContent;
}
// If anyone asks why we're not using URL, the URL equivalent is: `u = new URL('http://d'); u.pathname = "/" + sourcemapFilename; return u.pathname.slice(1);
const sourceMapLengthWithPercentEncoding = prefixLength + encodeURI(sourcemapFilename).length;
if (outputText.substr(-sourceMapLengthWithPercentEncoding, prefixLength) === prefix) {
return outputText.slice(0, -sourceMapLengthWithPercentEncoding) + sourceMapContent;
}
return `${outputText}\n${sourceMapContent}`;
}
/**
* Update the source map contents for improved output.
*/
function updateSourceMap(sourceMapText, fileName) {
const sourceMap = JSON.parse(sourceMapText);
sourceMap.file = fileName;
sourceMap.sources = [fileName];
delete sourceMap.sourceRoot;
return JSON.stringify(sourceMap);
}
/**
* Filter diagnostics.
*/
function filterDiagnostics(diagnostics, filters) {
return diagnostics.filter((d) => filters.every((f) => (!f.appliesToAllFiles && f.filenamesAbsolute.indexOf(d.file?.fileName) === -1) ||
f.diagnosticsIgnored.indexOf(d.code) === -1));
}
/**
* Get token at file position.
*
* Reference: https://github.com/microsoft/TypeScript/blob/fcd9334f57d85b73dd66ad2d21c02e84822f4841/src/services/utilities.ts#L705-L731
*/
function getTokenAtPosition(ts, sourceFile, position) {
let current = sourceFile;
outer: while (true) {
for (const child of current.getChildren(sourceFile)) {
const start = child.getFullStart();
if (start > position)
break;
const end = child.getEnd();
if (position <= end) {
current = child;
continue outer;
}
}
return current;
}
}
/**
* Create an implementation of node's ESM loader hooks.
*
* This may be useful if you
* want to wrap or compose the loader hooks to add additional functionality or
* combine with another loader.
*
* Node changed the hooks API, so there are two possible APIs. This function
* detects your node version and returns the appropriate API.
*
* @category ESM Loader
*/
const createEsmHooks = (tsNodeService) => require('./esm').createEsmHooks(tsNodeService);
exports.createEsmHooks = createEsmHooks;
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