532 lines
27 KiB
TypeScript
532 lines
27 KiB
TypeScript
// Used by importFixes, getEditsForFileRename, and declaration emit to synthesize import module specifiers.
|
|
/* @internal */
|
|
namespace ts.moduleSpecifiers {
|
|
const enum RelativePreference { Relative, NonRelative, Auto }
|
|
// See UserPreferences#importPathEnding
|
|
const enum Ending { Minimal, Index, JsExtension }
|
|
|
|
// Processed preferences
|
|
interface Preferences {
|
|
readonly relativePreference: RelativePreference;
|
|
readonly ending: Ending;
|
|
}
|
|
|
|
function getPreferences({ importModuleSpecifierPreference, importModuleSpecifierEnding }: UserPreferences, compilerOptions: CompilerOptions, importingSourceFile: SourceFile): Preferences {
|
|
return {
|
|
relativePreference: importModuleSpecifierPreference === "relative" ? RelativePreference.Relative : importModuleSpecifierPreference === "non-relative" ? RelativePreference.NonRelative : RelativePreference.Auto,
|
|
ending: getEnding(),
|
|
};
|
|
function getEnding(): Ending {
|
|
switch (importModuleSpecifierEnding) {
|
|
case "minimal": return Ending.Minimal;
|
|
case "index": return Ending.Index;
|
|
case "js": return Ending.JsExtension;
|
|
default: return usesJsExtensionOnImports(importingSourceFile) ? Ending.JsExtension
|
|
: getEmitModuleResolutionKind(compilerOptions) !== ModuleResolutionKind.NodeJs ? Ending.Index : Ending.Minimal;
|
|
}
|
|
}
|
|
}
|
|
|
|
function getPreferencesForUpdate(compilerOptions: CompilerOptions, oldImportSpecifier: string): Preferences {
|
|
return {
|
|
relativePreference: isExternalModuleNameRelative(oldImportSpecifier) ? RelativePreference.Relative : RelativePreference.NonRelative,
|
|
ending: hasJSFileExtension(oldImportSpecifier) ?
|
|
Ending.JsExtension :
|
|
getEmitModuleResolutionKind(compilerOptions) !== ModuleResolutionKind.NodeJs || endsWith(oldImportSpecifier, "index") ? Ending.Index : Ending.Minimal,
|
|
};
|
|
}
|
|
|
|
export function updateModuleSpecifier(
|
|
compilerOptions: CompilerOptions,
|
|
importingSourceFileName: Path,
|
|
toFileName: string,
|
|
host: ModuleSpecifierResolutionHost,
|
|
oldImportSpecifier: string,
|
|
): string | undefined {
|
|
const res = getModuleSpecifierWorker(compilerOptions, importingSourceFileName, toFileName, host, getPreferencesForUpdate(compilerOptions, oldImportSpecifier));
|
|
if (res === oldImportSpecifier) return undefined;
|
|
return res;
|
|
}
|
|
|
|
// Note: importingSourceFile is just for usesJsExtensionOnImports
|
|
export function getModuleSpecifier(
|
|
compilerOptions: CompilerOptions,
|
|
importingSourceFile: SourceFile,
|
|
importingSourceFileName: Path,
|
|
toFileName: string,
|
|
host: ModuleSpecifierResolutionHost,
|
|
preferences: UserPreferences = {},
|
|
): string {
|
|
return getModuleSpecifierWorker(compilerOptions, importingSourceFileName, toFileName, host, getPreferences(preferences, compilerOptions, importingSourceFile));
|
|
}
|
|
|
|
export function getNodeModulesPackageName(
|
|
compilerOptions: CompilerOptions,
|
|
importingSourceFileName: Path,
|
|
nodeModulesFileName: string,
|
|
host: ModuleSpecifierResolutionHost,
|
|
): string | undefined {
|
|
const info = getInfo(importingSourceFileName, host);
|
|
const modulePaths = getAllModulePaths(importingSourceFileName, nodeModulesFileName, host);
|
|
return firstDefined(modulePaths,
|
|
moduleFileName => tryGetModuleNameAsNodeModule(moduleFileName, info, host, compilerOptions, /*packageNameOnly*/ true));
|
|
}
|
|
|
|
function getModuleSpecifierWorker(
|
|
compilerOptions: CompilerOptions,
|
|
importingSourceFileName: Path,
|
|
toFileName: string,
|
|
host: ModuleSpecifierResolutionHost,
|
|
preferences: Preferences
|
|
): string {
|
|
const info = getInfo(importingSourceFileName, host);
|
|
const modulePaths = getAllModulePaths(importingSourceFileName, toFileName, host);
|
|
return firstDefined(modulePaths, moduleFileName => tryGetModuleNameAsNodeModule(moduleFileName, info, host, compilerOptions)) ||
|
|
getLocalModuleSpecifier(toFileName, info, compilerOptions, preferences);
|
|
}
|
|
|
|
/** Returns an import for each symlink and for the realpath. */
|
|
export function getModuleSpecifiers(
|
|
moduleSymbol: Symbol,
|
|
compilerOptions: CompilerOptions,
|
|
importingSourceFile: SourceFile,
|
|
host: ModuleSpecifierResolutionHost,
|
|
userPreferences: UserPreferences,
|
|
): readonly string[] {
|
|
const ambient = tryGetModuleNameFromAmbientModule(moduleSymbol);
|
|
if (ambient) return [ambient];
|
|
|
|
const info = getInfo(importingSourceFile.path, host);
|
|
const moduleSourceFile = getSourceFileOfNode(moduleSymbol.valueDeclaration || getNonAugmentationDeclaration(moduleSymbol));
|
|
const modulePaths = getAllModulePaths(importingSourceFile.path, moduleSourceFile.originalFileName, host);
|
|
|
|
const preferences = getPreferences(userPreferences, compilerOptions, importingSourceFile);
|
|
const global = mapDefined(modulePaths, moduleFileName => tryGetModuleNameAsNodeModule(moduleFileName, info, host, compilerOptions));
|
|
return global.length ? global : modulePaths.map(moduleFileName => getLocalModuleSpecifier(moduleFileName, info, compilerOptions, preferences));
|
|
}
|
|
|
|
interface Info {
|
|
readonly getCanonicalFileName: GetCanonicalFileName;
|
|
readonly sourceDirectory: Path;
|
|
}
|
|
// importingSourceFileName is separate because getEditsForFileRename may need to specify an updated path
|
|
function getInfo(importingSourceFileName: Path, host: ModuleSpecifierResolutionHost): Info {
|
|
const getCanonicalFileName = createGetCanonicalFileName(host.useCaseSensitiveFileNames ? host.useCaseSensitiveFileNames() : true);
|
|
const sourceDirectory = getDirectoryPath(importingSourceFileName);
|
|
return { getCanonicalFileName, sourceDirectory };
|
|
}
|
|
|
|
function getLocalModuleSpecifier(moduleFileName: string, { getCanonicalFileName, sourceDirectory }: Info, compilerOptions: CompilerOptions, { ending, relativePreference }: Preferences): string {
|
|
const { baseUrl, paths, rootDirs } = compilerOptions;
|
|
|
|
const relativePath = rootDirs && tryGetModuleNameFromRootDirs(rootDirs, moduleFileName, sourceDirectory, getCanonicalFileName, ending, compilerOptions) ||
|
|
removeExtensionAndIndexPostFix(ensurePathIsNonModuleName(getRelativePathFromDirectory(sourceDirectory, moduleFileName, getCanonicalFileName)), ending, compilerOptions);
|
|
if (!baseUrl || relativePreference === RelativePreference.Relative) {
|
|
return relativePath;
|
|
}
|
|
|
|
const relativeToBaseUrl = getRelativePathIfInDirectory(moduleFileName, baseUrl, getCanonicalFileName);
|
|
if (!relativeToBaseUrl) {
|
|
return relativePath;
|
|
}
|
|
|
|
const importRelativeToBaseUrl = removeExtensionAndIndexPostFix(relativeToBaseUrl, ending, compilerOptions);
|
|
const fromPaths = paths && tryGetModuleNameFromPaths(removeFileExtension(relativeToBaseUrl), importRelativeToBaseUrl, paths);
|
|
const nonRelative = fromPaths === undefined ? importRelativeToBaseUrl : fromPaths;
|
|
|
|
if (relativePreference === RelativePreference.NonRelative) {
|
|
return nonRelative;
|
|
}
|
|
|
|
if (relativePreference !== RelativePreference.Auto) Debug.assertNever(relativePreference);
|
|
|
|
// Prefer a relative import over a baseUrl import if it has fewer components.
|
|
return isPathRelativeToParent(nonRelative) || countPathComponents(relativePath) < countPathComponents(nonRelative) ? relativePath : nonRelative;
|
|
}
|
|
|
|
export function countPathComponents(path: string): number {
|
|
let count = 0;
|
|
for (let i = startsWith(path, "./") ? 2 : 0; i < path.length; i++) {
|
|
if (path.charCodeAt(i) === CharacterCodes.slash) count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
function usesJsExtensionOnImports({ imports }: SourceFile): boolean {
|
|
return firstDefined(imports, ({ text }) => pathIsRelative(text) ? hasJSFileExtension(text) : undefined) || false;
|
|
}
|
|
|
|
function numberOfDirectorySeparators(str: string) {
|
|
const match = str.match(/\//g);
|
|
return match ? match.length : 0;
|
|
}
|
|
|
|
function comparePathsByNumberOfDirectorySeparators(a: string, b: string) {
|
|
return compareValues(
|
|
numberOfDirectorySeparators(a),
|
|
numberOfDirectorySeparators(b)
|
|
);
|
|
}
|
|
|
|
export function forEachFileNameOfModule<T>(
|
|
importingFileName: string,
|
|
importedFileName: string,
|
|
host: ModuleSpecifierResolutionHost,
|
|
preferSymlinks: boolean,
|
|
cb: (fileName: string) => T | undefined
|
|
): T | undefined {
|
|
const getCanonicalFileName = hostGetCanonicalFileName(host);
|
|
const cwd = host.getCurrentDirectory();
|
|
const referenceRedirect = host.isSourceOfProjectReferenceRedirect(importedFileName) ? host.getProjectReferenceRedirect(importedFileName) : undefined;
|
|
const redirects = host.redirectTargetsMap.get(toPath(importedFileName, cwd, getCanonicalFileName)) || emptyArray;
|
|
const importedFileNames = [...(referenceRedirect ? [referenceRedirect] : emptyArray), importedFileName, ...redirects];
|
|
const targets = importedFileNames.map(f => getNormalizedAbsolutePath(f, cwd));
|
|
if (!preferSymlinks) {
|
|
const result = forEach(targets, cb);
|
|
if (result) return result;
|
|
}
|
|
const links = host.getProbableSymlinks
|
|
? host.getProbableSymlinks(host.getSourceFiles())
|
|
: discoverProbableSymlinks(host.getSourceFiles(), getCanonicalFileName, cwd);
|
|
|
|
const compareStrings = (!host.useCaseSensitiveFileNames || host.useCaseSensitiveFileNames()) ? compareStringsCaseSensitive : compareStringsCaseInsensitive;
|
|
const result = forEachEntry(links, (resolved, path) => {
|
|
if (startsWithDirectory(importingFileName, resolved, getCanonicalFileName)) {
|
|
return undefined; // Don't want to a package to globally import from itself
|
|
}
|
|
|
|
const target = find(targets, t => compareStrings(t.slice(0, resolved.length + 1), resolved + "/") === Comparison.EqualTo);
|
|
if (target === undefined) return undefined;
|
|
|
|
const relative = getRelativePathFromDirectory(resolved, target, getCanonicalFileName);
|
|
const option = resolvePath(path, relative);
|
|
if (!host.fileExists || host.fileExists(option)) {
|
|
const result = cb(option);
|
|
if (result) return result;
|
|
}
|
|
});
|
|
return result ||
|
|
(preferSymlinks ? forEach(targets, cb) : undefined);
|
|
}
|
|
|
|
/**
|
|
* Looks for existing imports that use symlinks to this module.
|
|
* Symlinks will be returned first so they are preferred over the real path.
|
|
*/
|
|
function getAllModulePaths(importingFileName: string, importedFileName: string, host: ModuleSpecifierResolutionHost): readonly string[] {
|
|
const cwd = host.getCurrentDirectory();
|
|
const getCanonicalFileName = hostGetCanonicalFileName(host);
|
|
const allFileNames = createMap<string>();
|
|
let importedFileFromNodeModules = false;
|
|
forEachFileNameOfModule(
|
|
importingFileName,
|
|
importedFileName,
|
|
host,
|
|
/*preferSymlinks*/ true,
|
|
path => {
|
|
// dont return value, so we collect everything
|
|
allFileNames.set(path, getCanonicalFileName(path));
|
|
importedFileFromNodeModules = importedFileFromNodeModules || pathContainsNodeModules(path);
|
|
}
|
|
);
|
|
|
|
// Sort by paths closest to importing file Name directory
|
|
const sortedPaths: string[] = [];
|
|
for (
|
|
let directory = getDirectoryPath(toPath(importingFileName, cwd, getCanonicalFileName));
|
|
allFileNames.size !== 0;
|
|
) {
|
|
const directoryStart = ensureTrailingDirectorySeparator(directory);
|
|
let pathsInDirectory: string[] | undefined;
|
|
allFileNames.forEach((canonicalFileName, fileName) => {
|
|
if (startsWith(canonicalFileName, directoryStart)) {
|
|
// If the importedFile is from node modules, use only paths in node_modules folder as option
|
|
if (!importedFileFromNodeModules || pathContainsNodeModules(fileName)) {
|
|
(pathsInDirectory || (pathsInDirectory = [])).push(fileName);
|
|
}
|
|
allFileNames.delete(fileName);
|
|
}
|
|
});
|
|
if (pathsInDirectory) {
|
|
if (pathsInDirectory.length > 1) {
|
|
pathsInDirectory.sort(comparePathsByNumberOfDirectorySeparators);
|
|
}
|
|
sortedPaths.push(...pathsInDirectory);
|
|
}
|
|
const newDirectory = getDirectoryPath(directory);
|
|
if (newDirectory === directory) break;
|
|
directory = newDirectory;
|
|
}
|
|
if (allFileNames.size) {
|
|
const remainingPaths = arrayFrom(allFileNames.values());
|
|
if (remainingPaths.length > 1) remainingPaths.sort(comparePathsByNumberOfDirectorySeparators);
|
|
sortedPaths.push(...remainingPaths);
|
|
}
|
|
return sortedPaths;
|
|
}
|
|
|
|
function tryGetModuleNameFromAmbientModule(moduleSymbol: Symbol): string | undefined {
|
|
const decl = find(moduleSymbol.declarations,
|
|
d => isNonGlobalAmbientModule(d) && (!isExternalModuleAugmentation(d) || !isExternalModuleNameRelative(getTextOfIdentifierOrLiteral(d.name)))
|
|
) as (ModuleDeclaration & { name: StringLiteral }) | undefined;
|
|
if (decl) {
|
|
return decl.name.text;
|
|
}
|
|
}
|
|
|
|
function tryGetModuleNameFromPaths(relativeToBaseUrlWithIndex: string, relativeToBaseUrl: string, paths: MapLike<readonly string[]>): string | undefined {
|
|
for (const key in paths) {
|
|
for (const patternText of paths[key]) {
|
|
const pattern = removeFileExtension(normalizePath(patternText));
|
|
const indexOfStar = pattern.indexOf("*");
|
|
if (indexOfStar !== -1) {
|
|
const prefix = pattern.substr(0, indexOfStar);
|
|
const suffix = pattern.substr(indexOfStar + 1);
|
|
if (relativeToBaseUrl.length >= prefix.length + suffix.length &&
|
|
startsWith(relativeToBaseUrl, prefix) &&
|
|
endsWith(relativeToBaseUrl, suffix) ||
|
|
!suffix && relativeToBaseUrl === removeTrailingDirectorySeparator(prefix)) {
|
|
const matchedStar = relativeToBaseUrl.substr(prefix.length, relativeToBaseUrl.length - suffix.length);
|
|
return key.replace("*", matchedStar);
|
|
}
|
|
}
|
|
else if (pattern === relativeToBaseUrl || pattern === relativeToBaseUrlWithIndex) {
|
|
return key;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function tryGetModuleNameFromRootDirs(rootDirs: readonly string[], moduleFileName: string, sourceDirectory: string, getCanonicalFileName: (file: string) => string, ending: Ending, compilerOptions: CompilerOptions): string | undefined {
|
|
const normalizedTargetPath = getPathRelativeToRootDirs(moduleFileName, rootDirs, getCanonicalFileName);
|
|
if (normalizedTargetPath === undefined) {
|
|
return undefined;
|
|
}
|
|
|
|
const normalizedSourcePath = getPathRelativeToRootDirs(sourceDirectory, rootDirs, getCanonicalFileName);
|
|
const relativePath = normalizedSourcePath !== undefined ? ensurePathIsNonModuleName(getRelativePathFromDirectory(normalizedSourcePath, normalizedTargetPath, getCanonicalFileName)) : normalizedTargetPath;
|
|
return getEmitModuleResolutionKind(compilerOptions) === ModuleResolutionKind.NodeJs
|
|
? removeExtensionAndIndexPostFix(relativePath, ending, compilerOptions)
|
|
: removeFileExtension(relativePath);
|
|
}
|
|
|
|
function tryGetModuleNameAsNodeModule(moduleFileName: string, { getCanonicalFileName, sourceDirectory }: Info, host: ModuleSpecifierResolutionHost, options: CompilerOptions, packageNameOnly?: boolean): string | undefined {
|
|
if (!host.fileExists || !host.readFile) {
|
|
return undefined;
|
|
}
|
|
const parts: NodeModulePathParts = getNodeModulePathParts(moduleFileName)!;
|
|
if (!parts) {
|
|
return undefined;
|
|
}
|
|
|
|
// Simplify the full file path to something that can be resolved by Node.
|
|
|
|
let moduleSpecifier = moduleFileName;
|
|
if (!packageNameOnly) {
|
|
let packageRootIndex = parts.packageRootIndex;
|
|
let moduleFileNameForExtensionless: string | undefined;
|
|
while (true) {
|
|
// If the module could be imported by a directory name, use that directory's name
|
|
const { moduleFileToTry, packageRootPath } = tryDirectoryWithPackageJson(packageRootIndex);
|
|
if (packageRootPath) {
|
|
moduleSpecifier = packageRootPath;
|
|
break;
|
|
}
|
|
if (!moduleFileNameForExtensionless) moduleFileNameForExtensionless = moduleFileToTry;
|
|
|
|
// try with next level of directory
|
|
packageRootIndex = moduleFileName.indexOf(directorySeparator, packageRootIndex + 1);
|
|
if (packageRootIndex === -1) {
|
|
moduleSpecifier = getExtensionlessFileName(moduleFileNameForExtensionless);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
const globalTypingsCacheLocation = host.getGlobalTypingsCacheLocation && host.getGlobalTypingsCacheLocation();
|
|
// Get a path that's relative to node_modules or the importing file's path
|
|
// if node_modules folder is in this folder or any of its parent folders, no need to keep it.
|
|
const pathToTopLevelNodeModules = getCanonicalFileName(moduleSpecifier.substring(0, parts.topLevelNodeModulesIndex));
|
|
if (!(startsWith(sourceDirectory, pathToTopLevelNodeModules) || globalTypingsCacheLocation && startsWith(getCanonicalFileName(globalTypingsCacheLocation), pathToTopLevelNodeModules))) {
|
|
return undefined;
|
|
}
|
|
|
|
// If the module was found in @types, get the actual Node package name
|
|
const nodeModulesDirectoryName = moduleSpecifier.substring(parts.topLevelPackageNameIndex + 1);
|
|
const packageName = getPackageNameFromTypesPackageName(nodeModulesDirectoryName);
|
|
// For classic resolution, only allow importing from node_modules/@types, not other node_modules
|
|
return getEmitModuleResolutionKind(options) !== ModuleResolutionKind.NodeJs && packageName === nodeModulesDirectoryName ? undefined : packageName;
|
|
|
|
function tryDirectoryWithPackageJson(packageRootIndex: number) {
|
|
const packageRootPath = moduleFileName.substring(0, packageRootIndex);
|
|
const packageJsonPath = combinePaths(packageRootPath, "package.json");
|
|
let moduleFileToTry = moduleFileName;
|
|
if (host.fileExists(packageJsonPath)) {
|
|
const packageJsonContent = JSON.parse(host.readFile!(packageJsonPath)!);
|
|
const versionPaths = packageJsonContent.typesVersions
|
|
? getPackageJsonTypesVersionsPaths(packageJsonContent.typesVersions)
|
|
: undefined;
|
|
if (versionPaths) {
|
|
const subModuleName = moduleFileName.slice(packageRootPath.length + 1);
|
|
const fromPaths = tryGetModuleNameFromPaths(
|
|
removeFileExtension(subModuleName),
|
|
removeExtensionAndIndexPostFix(subModuleName, Ending.Minimal, options),
|
|
versionPaths.paths
|
|
);
|
|
if (fromPaths !== undefined) {
|
|
moduleFileToTry = combinePaths(packageRootPath, fromPaths);
|
|
}
|
|
}
|
|
|
|
// If the file is the main module, it can be imported by the package name
|
|
const mainFileRelative = packageJsonContent.typings || packageJsonContent.types || packageJsonContent.main;
|
|
if (isString(mainFileRelative)) {
|
|
const mainExportFile = toPath(mainFileRelative, packageRootPath, getCanonicalFileName);
|
|
if (removeFileExtension(mainExportFile) === removeFileExtension(getCanonicalFileName(moduleFileToTry))) {
|
|
return { packageRootPath, moduleFileToTry };
|
|
}
|
|
}
|
|
}
|
|
return { moduleFileToTry };
|
|
}
|
|
|
|
function getExtensionlessFileName(path: string): string {
|
|
// We still have a file name - remove the extension
|
|
const fullModulePathWithoutExtension = removeFileExtension(path);
|
|
|
|
// If the file is /index, it can be imported by its directory name
|
|
// IFF there is not _also_ a file by the same name
|
|
if (getCanonicalFileName(fullModulePathWithoutExtension.substring(parts.fileNameIndex)) === "/index" && !tryGetAnyFileFromPath(host, fullModulePathWithoutExtension.substring(0, parts.fileNameIndex))) {
|
|
return fullModulePathWithoutExtension.substring(0, parts.fileNameIndex);
|
|
}
|
|
|
|
return fullModulePathWithoutExtension;
|
|
}
|
|
}
|
|
|
|
function tryGetAnyFileFromPath(host: ModuleSpecifierResolutionHost, path: string) {
|
|
if (!host.fileExists) return;
|
|
// We check all js, `node` and `json` extensions in addition to TS, since node module resolution would also choose those over the directory
|
|
const extensions = getSupportedExtensions({ allowJs: true }, [{ extension: "node", isMixedContent: false }, { extension: "json", isMixedContent: false, scriptKind: ScriptKind.JSON }]);
|
|
for (const e of extensions) {
|
|
const fullPath = path + e;
|
|
if (host.fileExists(fullPath)) {
|
|
return fullPath;
|
|
}
|
|
}
|
|
}
|
|
|
|
interface NodeModulePathParts {
|
|
readonly topLevelNodeModulesIndex: number;
|
|
readonly topLevelPackageNameIndex: number;
|
|
readonly packageRootIndex: number;
|
|
readonly fileNameIndex: number;
|
|
}
|
|
function getNodeModulePathParts(fullPath: string): NodeModulePathParts | undefined {
|
|
// If fullPath can't be valid module file within node_modules, returns undefined.
|
|
// Example of expected pattern: /base/path/node_modules/[@scope/otherpackage/@otherscope/node_modules/]package/[subdirectory/]file.js
|
|
// Returns indices: ^ ^ ^ ^
|
|
|
|
let topLevelNodeModulesIndex = 0;
|
|
let topLevelPackageNameIndex = 0;
|
|
let packageRootIndex = 0;
|
|
let fileNameIndex = 0;
|
|
|
|
const enum States {
|
|
BeforeNodeModules,
|
|
NodeModules,
|
|
Scope,
|
|
PackageContent
|
|
}
|
|
|
|
let partStart = 0;
|
|
let partEnd = 0;
|
|
let state = States.BeforeNodeModules;
|
|
|
|
while (partEnd >= 0) {
|
|
partStart = partEnd;
|
|
partEnd = fullPath.indexOf("/", partStart + 1);
|
|
switch (state) {
|
|
case States.BeforeNodeModules:
|
|
if (fullPath.indexOf(nodeModulesPathPart, partStart) === partStart) {
|
|
topLevelNodeModulesIndex = partStart;
|
|
topLevelPackageNameIndex = partEnd;
|
|
state = States.NodeModules;
|
|
}
|
|
break;
|
|
case States.NodeModules:
|
|
case States.Scope:
|
|
if (state === States.NodeModules && fullPath.charAt(partStart + 1) === "@") {
|
|
state = States.Scope;
|
|
}
|
|
else {
|
|
packageRootIndex = partEnd;
|
|
state = States.PackageContent;
|
|
}
|
|
break;
|
|
case States.PackageContent:
|
|
if (fullPath.indexOf(nodeModulesPathPart, partStart) === partStart) {
|
|
state = States.NodeModules;
|
|
}
|
|
else {
|
|
state = States.PackageContent;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
fileNameIndex = partStart;
|
|
|
|
return state > States.NodeModules ? { topLevelNodeModulesIndex, topLevelPackageNameIndex, packageRootIndex, fileNameIndex } : undefined;
|
|
}
|
|
|
|
function getPathRelativeToRootDirs(path: string, rootDirs: readonly string[], getCanonicalFileName: GetCanonicalFileName): string | undefined {
|
|
return firstDefined(rootDirs, rootDir => {
|
|
const relativePath = getRelativePathIfInDirectory(path, rootDir, getCanonicalFileName)!; // TODO: GH#18217
|
|
return isPathRelativeToParent(relativePath) ? undefined : relativePath;
|
|
});
|
|
}
|
|
|
|
function removeExtensionAndIndexPostFix(fileName: string, ending: Ending, options: CompilerOptions): string {
|
|
if (fileExtensionIs(fileName, Extension.Json)) return fileName;
|
|
const noExtension = removeFileExtension(fileName);
|
|
switch (ending) {
|
|
case Ending.Minimal:
|
|
return removeSuffix(noExtension, "/index");
|
|
case Ending.Index:
|
|
return noExtension;
|
|
case Ending.JsExtension:
|
|
return noExtension + getJSExtensionForFile(fileName, options);
|
|
default:
|
|
return Debug.assertNever(ending);
|
|
}
|
|
}
|
|
|
|
function getJSExtensionForFile(fileName: string, options: CompilerOptions): Extension {
|
|
const ext = extensionFromPath(fileName);
|
|
switch (ext) {
|
|
case Extension.Ts:
|
|
case Extension.Dts:
|
|
return Extension.Js;
|
|
case Extension.Tsx:
|
|
return options.jsx === JsxEmit.Preserve ? Extension.Jsx : Extension.Js;
|
|
case Extension.Js:
|
|
case Extension.Jsx:
|
|
case Extension.Json:
|
|
return ext;
|
|
case Extension.TsBuildInfo:
|
|
return Debug.fail(`Extension ${Extension.TsBuildInfo} is unsupported:: FileName:: ${fileName}`);
|
|
default:
|
|
return Debug.assertNever(ext);
|
|
}
|
|
}
|
|
|
|
function getRelativePathIfInDirectory(path: string, directoryPath: string, getCanonicalFileName: GetCanonicalFileName): string | undefined {
|
|
const relativePath = getRelativePathToDirectoryOrUrl(directoryPath, path, directoryPath, getCanonicalFileName, /*isAbsolutePathAnUrl*/ false);
|
|
return isRootedDiskPath(relativePath) ? undefined : relativePath;
|
|
}
|
|
|
|
function isPathRelativeToParent(path: string): boolean {
|
|
return startsWith(path, "..");
|
|
}
|
|
}
|