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project.ts
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1490 lines (1286 loc) · 62.1 KB
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/// <reference path="..\services\services.ts" />
/// <reference path="utilities.ts"/>
/// <reference path="scriptInfo.ts"/>
/// <reference path="..\compiler\resolutionCache.ts"/>
/// <reference path="typingsCache.ts"/>
/// <reference path="..\compiler\builderState.ts"/>
namespace ts.server {
export enum ProjectKind {
Inferred,
Configured,
External
}
/* @internal */
export function countEachFileTypes(infos: ScriptInfo[]): FileStats {
const result = { js: 0, jsx: 0, ts: 0, tsx: 0, dts: 0 };
for (const info of infos) {
switch (info.scriptKind) {
case ScriptKind.JS:
result.js += 1;
break;
case ScriptKind.JSX:
result.jsx += 1;
break;
case ScriptKind.TS:
fileExtensionIs(info.fileName, Extension.Dts)
? result.dts += 1
: result.ts += 1;
break;
case ScriptKind.TSX:
result.tsx += 1;
break;
}
}
return result;
}
function hasOneOrMoreJsAndNoTsFiles(project: Project) {
const counts = countEachFileTypes(project.getScriptInfos());
return counts.js > 0 && counts.ts === 0 && counts.tsx === 0;
}
export function allRootFilesAreJsOrDts(project: Project): boolean {
const counts = countEachFileTypes(project.getRootScriptInfos());
return counts.ts === 0 && counts.tsx === 0;
}
export function allFilesAreJsOrDts(project: Project): boolean {
const counts = countEachFileTypes(project.getScriptInfos());
return counts.ts === 0 && counts.tsx === 0;
}
/* @internal */
export function hasNoTypeScriptSource(fileNames: string[]): boolean {
return !fileNames.some(fileName => (fileExtensionIs(fileName, Extension.Ts) && !fileExtensionIs(fileName, Extension.Dts)) || fileExtensionIs(fileName, Extension.Tsx));
}
/* @internal */
export interface ProjectFilesWithTSDiagnostics extends protocol.ProjectFiles {
projectErrors: ReadonlyArray<Diagnostic>;
}
export class UnresolvedImportsMap {
readonly perFileMap = createMap<ReadonlyArray<string>>();
private version = 0;
public clear() {
this.perFileMap.clear();
this.version = 0;
}
public getVersion() {
return this.version;
}
public remove(path: Path) {
this.perFileMap.delete(path);
this.version++;
}
public get(path: Path) {
return this.perFileMap.get(path);
}
public set(path: Path, value: ReadonlyArray<string>) {
this.perFileMap.set(path, value);
this.version++;
}
}
export interface PluginCreateInfo {
project: Project;
languageService: LanguageService;
languageServiceHost: LanguageServiceHost;
serverHost: ServerHost;
config: any;
}
export interface PluginModule {
create(createInfo: PluginCreateInfo): LanguageService;
getExternalFiles?(proj: Project): string[];
}
export type PluginModuleFactory = (mod: { typescript: typeof ts }) => PluginModule;
/**
* The project root can be script info - if root is present,
* or it could be just normalized path if root wasnt present on the host(only for non inferred project)
*/
export type ProjectRoot = ScriptInfo | NormalizedPath;
/* @internal */
export function isScriptInfo(value: ProjectRoot): value is ScriptInfo {
return value instanceof ScriptInfo;
}
export abstract class Project implements LanguageServiceHost, ModuleResolutionHost {
private rootFiles: ScriptInfo[] = [];
private rootFilesMap: Map<ProjectRoot> = createMap<ProjectRoot>();
private program: Program;
private externalFiles: SortedReadonlyArray<string>;
private missingFilesMap: Map<FileWatcher>;
private plugins: PluginModule[] = [];
private cachedUnresolvedImportsPerFile = new UnresolvedImportsMap();
private lastCachedUnresolvedImportsList: SortedReadonlyArray<string>;
// wrapper over the real language service that will suppress all semantic operations
protected languageService: LanguageService;
public languageServiceEnabled = true;
readonly trace?: (s: string) => void;
readonly realpath?: (path: string) => string;
/*@internal*/
hasInvalidatedResolution: HasInvalidatedResolution;
/*@internal*/
resolutionCache: ResolutionCache;
private builderState: BuilderState | undefined;
/**
* Set of files names that were updated since the last call to getChangesSinceVersion.
*/
private updatedFileNames: Map<true>;
/**
* Set of files that was returned from the last call to getChangesSinceVersion.
*/
private lastReportedFileNames: Map<true>;
/**
* Last version that was reported.
*/
private lastReportedVersion = 0;
/**
* Current project structure version.
* This property is changed in 'updateGraph' based on the set of files in program
*/
private projectStructureVersion = 0;
/**
* Current version of the project state. It is changed when:
* - new root file was added/removed
* - edit happen in some file that is currently included in the project.
* This property is different from projectStructureVersion since in most cases edits don't affect set of files in the project
*/
private projectStateVersion = 0;
/*@internal*/
hasChangedAutomaticTypeDirectiveNames = false;
private typingFiles: SortedReadonlyArray<string>;
private readonly cancellationToken: ThrottledCancellationToken;
public isNonTsProject() {
this.updateGraph();
return allFilesAreJsOrDts(this);
}
public isJsOnlyProject() {
this.updateGraph();
return hasOneOrMoreJsAndNoTsFiles(this);
}
public getCachedUnresolvedImportsPerFile_TestOnly() {
return this.cachedUnresolvedImportsPerFile;
}
public static resolveModule(moduleName: string, initialDir: string, host: ServerHost, log: (message: string) => void): {} {
const resolvedPath = normalizeSlashes(host.resolvePath(combinePaths(initialDir, "node_modules")));
log(`Loading ${moduleName} from ${initialDir} (resolved to ${resolvedPath})`);
const result = host.require(resolvedPath, moduleName);
if (result.error) {
const err = result.error.stack || result.error.message || JSON.stringify(result.error);
log(`Failed to load module '${moduleName}': ${err}`);
return undefined;
}
return result.module;
}
/*@internal*/
readonly currentDirectory: string;
/*@internal*/
public directoryStructureHost: DirectoryStructureHost;
/*@internal*/
constructor(
/*@internal*/readonly projectName: string,
readonly projectKind: ProjectKind,
readonly projectService: ProjectService,
private documentRegistry: DocumentRegistry,
hasExplicitListOfFiles: boolean,
languageServiceEnabled: boolean,
private compilerOptions: CompilerOptions,
public compileOnSaveEnabled: boolean,
directoryStructureHost: DirectoryStructureHost,
currentDirectory: string | undefined) {
this.directoryStructureHost = directoryStructureHost;
this.currentDirectory = this.projectService.getNormalizedAbsolutePath(currentDirectory || "");
this.cancellationToken = new ThrottledCancellationToken(this.projectService.cancellationToken, this.projectService.throttleWaitMilliseconds);
if (!this.compilerOptions) {
this.compilerOptions = getDefaultCompilerOptions();
this.compilerOptions.allowNonTsExtensions = true;
this.compilerOptions.allowJs = true;
}
else if (hasExplicitListOfFiles || this.compilerOptions.allowJs) {
// If files are listed explicitly or allowJs is specified, allow all extensions
this.compilerOptions.allowNonTsExtensions = true;
}
this.setInternalCompilerOptionsForEmittingJsFiles();
const host = this.projectService.host;
if (host.trace) {
this.trace = s => host.trace(s);
}
if (host.realpath) {
this.realpath = path => host.realpath(path);
}
// Use the current directory as resolution root only if the project created using current directory string
this.resolutionCache = createResolutionCache(this, currentDirectory && this.currentDirectory, /*logChangesWhenResolvingModule*/ true);
this.languageService = createLanguageService(this, this.documentRegistry);
if (!languageServiceEnabled) {
this.disableLanguageService();
}
this.markAsDirty();
}
isKnownTypesPackageName(name: string): boolean {
return this.typingsCache.isKnownTypesPackageName(name);
}
installPackage(options: InstallPackageOptions): Promise<ApplyCodeActionCommandResult> {
return this.typingsCache.installPackage({ ...options, projectName: this.projectName, projectRootPath: this.toPath(this.currentDirectory) });
}
private get typingsCache(): TypingsCache {
return this.projectService.typingsCache;
}
// Method of LanguageServiceHost
getCompilationSettings() {
return this.compilerOptions;
}
// Method to support public API
getCompilerOptions() {
return this.getCompilationSettings();
}
getNewLine() {
return this.projectService.host.newLine;
}
getProjectVersion() {
return this.projectStateVersion.toString();
}
getScriptFileNames() {
if (!this.rootFiles) {
return ts.emptyArray;
}
let result: string[] | undefined;
this.rootFilesMap.forEach(value => {
if (this.languageServiceEnabled || (isScriptInfo(value) && value.isScriptOpen())) {
// if language service is disabled - process only files that are open
(result || (result = [])).push(isScriptInfo(value) ? value.fileName : value);
}
});
return addRange(result, this.typingFiles) || ts.emptyArray;
}
private getOrCreateScriptInfoAndAttachToProject(fileName: string) {
const scriptInfo = this.projectService.getOrCreateScriptInfoNotOpenedByClient(fileName, this.currentDirectory, this.directoryStructureHost);
if (scriptInfo) {
const existingValue = this.rootFilesMap.get(scriptInfo.path);
if (existingValue !== scriptInfo && existingValue !== undefined) {
// This was missing path earlier but now the file exists. Update the root
this.rootFiles.push(scriptInfo);
this.rootFilesMap.set(scriptInfo.path, scriptInfo);
}
scriptInfo.attachToProject(this);
}
return scriptInfo;
}
getScriptKind(fileName: string) {
const info = this.getOrCreateScriptInfoAndAttachToProject(fileName);
return info && info.scriptKind;
}
getScriptVersion(filename: string) {
const info = this.getOrCreateScriptInfoAndAttachToProject(filename);
return info && info.getLatestVersion();
}
getScriptSnapshot(filename: string): IScriptSnapshot {
const scriptInfo = this.getOrCreateScriptInfoAndAttachToProject(filename);
if (scriptInfo) {
return scriptInfo.getSnapshot();
}
}
getCancellationToken(): HostCancellationToken {
return this.cancellationToken;
}
getCurrentDirectory(): string {
return this.currentDirectory;
}
getDefaultLibFileName() {
const nodeModuleBinDir = getDirectoryPath(normalizePath(this.projectService.getExecutingFilePath()));
return combinePaths(nodeModuleBinDir, getDefaultLibFileName(this.compilerOptions));
}
useCaseSensitiveFileNames() {
return this.projectService.host.useCaseSensitiveFileNames;
}
readDirectory(path: string, extensions?: ReadonlyArray<string>, exclude?: ReadonlyArray<string>, include?: ReadonlyArray<string>, depth?: number): string[] {
return this.directoryStructureHost.readDirectory(path, extensions, exclude, include, depth);
}
readFile(fileName: string): string | undefined {
return this.projectService.host.readFile(fileName);
}
fileExists(file: string): boolean {
// As an optimization, don't hit the disks for files we already know don't exist
// (because we're watching for their creation).
const path = this.toPath(file);
return !this.isWatchedMissingFile(path) && this.directoryStructureHost.fileExists(file);
}
resolveModuleNames(moduleNames: string[], containingFile: string, reusedNames?: string[]): ResolvedModuleFull[] {
return this.resolutionCache.resolveModuleNames(moduleNames, containingFile, reusedNames);
}
resolveTypeReferenceDirectives(typeDirectiveNames: string[], containingFile: string): ResolvedTypeReferenceDirective[] {
return this.resolutionCache.resolveTypeReferenceDirectives(typeDirectiveNames, containingFile);
}
directoryExists(path: string): boolean {
return this.directoryStructureHost.directoryExists(path);
}
getDirectories(path: string): string[] {
return this.directoryStructureHost.getDirectories(path);
}
/*@internal*/
getCachedDirectoryStructureHost(): CachedDirectoryStructureHost {
return undefined;
}
/*@internal*/
toPath(fileName: string) {
return toPath(fileName, this.currentDirectory, this.projectService.toCanonicalFileName);
}
/*@internal*/
watchDirectoryOfFailedLookupLocation(directory: string, cb: DirectoryWatcherCallback, flags: WatchDirectoryFlags) {
return this.projectService.watchDirectory(
this.projectService.host,
directory,
cb,
flags,
WatchType.FailedLookupLocation,
this
);
}
/*@internal*/
onInvalidatedResolution() {
this.projectService.delayUpdateProjectGraphAndInferredProjectsRefresh(this);
}
/*@internal*/
watchTypeRootsDirectory(directory: string, cb: DirectoryWatcherCallback, flags: WatchDirectoryFlags) {
return this.projectService.watchDirectory(
this.projectService.host,
directory,
cb,
flags,
WatchType.TypeRoots,
this
);
}
/*@internal*/
onChangedAutomaticTypeDirectiveNames() {
this.hasChangedAutomaticTypeDirectiveNames = true;
this.projectService.delayUpdateProjectGraphAndInferredProjectsRefresh(this);
}
/*@internal*/
getGlobalCache() {
return this.getTypeAcquisition().enable ? this.projectService.typingsInstaller.globalTypingsCacheLocation : undefined;
}
/*@internal*/
writeLog(s: string) {
this.projectService.logger.info(s);
}
log(s: string) {
this.writeLog(s);
}
error(s: string) {
this.projectService.logger.msg(s, Msg.Err);
}
private setInternalCompilerOptionsForEmittingJsFiles() {
if (this.projectKind === ProjectKind.Inferred || this.projectKind === ProjectKind.External) {
this.compilerOptions.noEmitForJsFiles = true;
}
}
/**
* Get the errors that dont have any file name associated
*/
getGlobalProjectErrors(): ReadonlyArray<Diagnostic> {
return emptyArray;
}
getAllProjectErrors(): ReadonlyArray<Diagnostic> {
return emptyArray;
}
getLanguageService(ensureSynchronized = true): LanguageService {
if (ensureSynchronized) {
this.updateGraph();
}
return this.languageService;
}
private shouldEmitFile(scriptInfo: ScriptInfo) {
return scriptInfo && !scriptInfo.isDynamicOrHasMixedContent();
}
getCompileOnSaveAffectedFileList(scriptInfo: ScriptInfo): string[] {
if (!this.languageServiceEnabled) {
return [];
}
this.updateGraph();
this.builderState = BuilderState.create(this.program, this.projectService.toCanonicalFileName, this.builderState);
return mapDefined(BuilderState.getFilesAffectedBy(this.builderState, this.program, scriptInfo.path, this.cancellationToken, data => this.projectService.host.createHash(data)),
sourceFile => this.shouldEmitFile(this.projectService.getScriptInfoForPath(sourceFile.path)) ? sourceFile.fileName : undefined);
}
/**
* Returns true if emit was conducted
*/
emitFile(scriptInfo: ScriptInfo, writeFile: (path: string, data: string, writeByteOrderMark?: boolean) => void): boolean {
if (!this.languageServiceEnabled || !this.shouldEmitFile(scriptInfo)) {
return false;
}
const { emitSkipped, outputFiles } = this.getLanguageService(/*ensureSynchronized*/ false).getEmitOutput(scriptInfo.fileName);
if (!emitSkipped) {
for (const outputFile of outputFiles) {
const outputFileAbsoluteFileName = getNormalizedAbsolutePath(outputFile.name, this.currentDirectory);
writeFile(outputFileAbsoluteFileName, outputFile.text, outputFile.writeByteOrderMark);
}
}
return !emitSkipped;
}
enableLanguageService() {
if (this.languageServiceEnabled) {
return;
}
this.languageServiceEnabled = true;
this.projectService.onUpdateLanguageServiceStateForProject(this, /*languageServiceEnabled*/ true);
}
disableLanguageService() {
if (!this.languageServiceEnabled) {
return;
}
this.languageService.cleanupSemanticCache();
this.languageServiceEnabled = false;
this.builderState = undefined;
this.resolutionCache.closeTypeRootsWatch();
this.projectService.onUpdateLanguageServiceStateForProject(this, /*languageServiceEnabled*/ false);
}
getProjectName() {
return this.projectName;
}
abstract getTypeAcquisition(): TypeAcquisition;
protected removeLocalTypingsFromTypeAcquisition(newTypeAcquisition: TypeAcquisition): TypeAcquisition {
if (!newTypeAcquisition || !newTypeAcquisition.include) {
// Nothing to filter out, so just return as-is
return newTypeAcquisition;
}
return { ...newTypeAcquisition, include: this.removeExistingTypings(newTypeAcquisition.include) };
}
getExternalFiles(): SortedReadonlyArray<string> {
return toSortedArray(flatMap(this.plugins, plugin => {
if (typeof plugin.getExternalFiles !== "function") return;
try {
return plugin.getExternalFiles(this);
}
catch (e) {
this.projectService.logger.info(`A plugin threw an exception in getExternalFiles: ${e}`);
if (e.stack) {
this.projectService.logger.info(e.stack);
}
}
}));
}
getSourceFile(path: Path) {
if (!this.program) {
return undefined;
}
return this.program.getSourceFileByPath(path);
}
close() {
if (this.program) {
// if we have a program - release all files that are enlisted in program but arent root
// The releasing of the roots happens later
// The project could have pending update remaining and hence the info could be in the files but not in program graph
for (const f of this.program.getSourceFiles()) {
this.detachScriptInfoIfNotRoot(f.fileName);
}
}
// Release external files
forEach(this.externalFiles, externalFile => this.detachScriptInfoIfNotRoot(externalFile));
// Always remove root files from the project
for (const root of this.rootFiles) {
root.detachFromProject(this);
}
this.rootFiles = undefined;
this.rootFilesMap = undefined;
this.externalFiles = undefined;
this.program = undefined;
this.builderState = undefined;
this.resolutionCache.clear();
this.resolutionCache = undefined;
this.cachedUnresolvedImportsPerFile = undefined;
this.directoryStructureHost = undefined;
// Clean up file watchers waiting for missing files
if (this.missingFilesMap) {
clearMap(this.missingFilesMap, closeFileWatcher);
this.missingFilesMap = undefined;
}
// signal language service to release source files acquired from document registry
this.languageService.dispose();
this.languageService = undefined;
}
private detachScriptInfoIfNotRoot(uncheckedFilename: string) {
const info = this.projectService.getScriptInfo(uncheckedFilename);
// We might not find the script info in case its not associated with the project any more
// and project graph was not updated (eg delayed update graph in case of files changed/deleted on the disk)
if (info && !this.isRoot(info)) {
info.detachFromProject(this);
}
}
isClosed() {
return this.rootFiles === undefined;
}
hasRoots() {
return this.rootFiles && this.rootFiles.length > 0;
}
getRootFiles() {
return this.rootFiles && this.rootFiles.map(info => info.fileName);
}
/*@internal*/
getRootFilesMap() {
return this.rootFilesMap;
}
getRootScriptInfos() {
return this.rootFiles;
}
getScriptInfos() {
if (!this.languageServiceEnabled) {
// if language service is not enabled - return just root files
return this.rootFiles;
}
return map(this.program.getSourceFiles(), sourceFile => {
const scriptInfo = this.projectService.getScriptInfoForPath(sourceFile.path);
if (!scriptInfo) {
Debug.fail(`scriptInfo for a file '${sourceFile.fileName}' Path: '${sourceFile.path}' is missing.`);
}
return scriptInfo;
});
}
getExcludedFiles(): ReadonlyArray<NormalizedPath> {
return emptyArray;
}
getFileNames(excludeFilesFromExternalLibraries?: boolean, excludeConfigFiles?: boolean) {
if (!this.program) {
return [];
}
if (!this.languageServiceEnabled) {
// if language service is disabled assume that all files in program are root files + default library
let rootFiles = this.getRootFiles();
if (this.compilerOptions) {
const defaultLibrary = getDefaultLibFilePath(this.compilerOptions);
if (defaultLibrary) {
(rootFiles || (rootFiles = [])).push(asNormalizedPath(defaultLibrary));
}
}
return rootFiles;
}
const result: NormalizedPath[] = [];
for (const f of this.program.getSourceFiles()) {
if (excludeFilesFromExternalLibraries && this.program.isSourceFileFromExternalLibrary(f)) {
continue;
}
result.push(asNormalizedPath(f.fileName));
}
if (!excludeConfigFiles) {
const configFile = this.program.getCompilerOptions().configFile;
if (configFile) {
result.push(asNormalizedPath(configFile.fileName));
if (configFile.extendedSourceFiles) {
for (const f of configFile.extendedSourceFiles) {
result.push(asNormalizedPath(f));
}
}
}
}
return result;
}
hasConfigFile(configFilePath: NormalizedPath) {
if (this.program && this.languageServiceEnabled) {
const configFile = this.program.getCompilerOptions().configFile;
if (configFile) {
if (configFilePath === asNormalizedPath(configFile.fileName)) {
return true;
}
if (configFile.extendedSourceFiles) {
for (const f of configFile.extendedSourceFiles) {
if (configFilePath === asNormalizedPath(f)) {
return true;
}
}
}
}
}
return false;
}
containsScriptInfo(info: ScriptInfo): boolean {
return this.isRoot(info) || (this.program && this.program.getSourceFileByPath(info.path) !== undefined);
}
containsFile(filename: NormalizedPath, requireOpen?: boolean) {
const info = this.projectService.getScriptInfoForPath(this.toPath(filename));
if (info && (info.isScriptOpen() || !requireOpen)) {
return this.containsScriptInfo(info);
}
}
isRoot(info: ScriptInfo) {
return this.rootFilesMap && this.rootFilesMap.get(info.path) === info;
}
// add a root file to project
addRoot(info: ScriptInfo) {
Debug.assert(!this.isRoot(info));
this.rootFiles.push(info);
this.rootFilesMap.set(info.path, info);
info.attachToProject(this);
this.markAsDirty();
}
// add a root file that doesnt exist on host
addMissingFileRoot(fileName: NormalizedPath) {
const path = this.projectService.toPath(fileName);
this.rootFilesMap.set(path, fileName);
this.markAsDirty();
}
removeFile(info: ScriptInfo, fileExists: boolean, detachFromProject: boolean) {
if (this.isRoot(info)) {
this.removeRoot(info);
}
if (fileExists) {
// If file is present, just remove the resolutions for the file
this.resolutionCache.removeResolutionsOfFile(info.path);
}
else {
this.resolutionCache.invalidateResolutionOfFile(info.path);
}
this.cachedUnresolvedImportsPerFile.remove(info.path);
if (detachFromProject) {
info.detachFromProject(this);
}
this.markAsDirty();
}
registerFileUpdate(fileName: string) {
(this.updatedFileNames || (this.updatedFileNames = createMap<true>())).set(fileName, true);
}
markAsDirty() {
this.projectStateVersion++;
}
/* @internal */
private extractUnresolvedImportsFromSourceFile(file: SourceFile, result: Push<string>, ambientModules: string[]) {
const cached = this.cachedUnresolvedImportsPerFile.get(file.path);
if (cached) {
// found cached result - use it and return
for (const f of cached) {
result.push(f);
}
return;
}
let unresolvedImports: string[];
if (file.resolvedModules) {
file.resolvedModules.forEach((resolvedModule, name) => {
// pick unresolved non-relative names
if (!resolvedModule && !isExternalModuleNameRelative(name) && !isAmbientlyDeclaredModule(name)) {
// for non-scoped names extract part up-to the first slash
// for scoped names - extract up to the second slash
let trimmed = name.trim();
let i = trimmed.indexOf("/");
if (i !== -1 && trimmed.charCodeAt(0) === CharacterCodes.at) {
i = trimmed.indexOf("/", i + 1);
}
if (i !== -1) {
trimmed = trimmed.substr(0, i);
}
(unresolvedImports || (unresolvedImports = [])).push(trimmed);
result.push(trimmed);
}
});
}
this.cachedUnresolvedImportsPerFile.set(file.path, unresolvedImports || emptyArray);
function isAmbientlyDeclaredModule(name: string) {
return ambientModules.some(m => m === name);
}
}
/**
* Updates set of files that contribute to this project
* @returns: true if set of files in the project stays the same and false - otherwise.
*/
updateGraph(): boolean {
this.resolutionCache.startRecordingFilesWithChangedResolutions();
let hasChanges = this.updateGraphWorker();
const changedFiles: ReadonlyArray<Path> = this.resolutionCache.finishRecordingFilesWithChangedResolutions() || emptyArray;
for (const file of changedFiles) {
// delete cached information for changed files
this.cachedUnresolvedImportsPerFile.remove(file);
}
// update builder only if language service is enabled
// otherwise tell it to drop its internal state
if (this.languageServiceEnabled) {
// 1. no changes in structure, no changes in unresolved imports - do nothing
// 2. no changes in structure, unresolved imports were changed - collect unresolved imports for all files
// (can reuse cached imports for files that were not changed)
// 3. new files were added/removed, but compilation settings stays the same - collect unresolved imports for all new/modified files
// (can reuse cached imports for files that were not changed)
// 4. compilation settings were changed in the way that might affect module resolution - drop all caches and collect all data from the scratch
if (hasChanges || changedFiles.length) {
const result: string[] = [];
const ambientModules = this.program.getTypeChecker().getAmbientModules().map(mod => stripQuotes(mod.getName()));
for (const sourceFile of this.program.getSourceFiles()) {
this.extractUnresolvedImportsFromSourceFile(sourceFile, result, ambientModules);
}
this.lastCachedUnresolvedImportsList = toDeduplicatedSortedArray(result);
}
const cachedTypings = this.projectService.typingsCache.getTypingsForProject(this, this.lastCachedUnresolvedImportsList, hasChanges);
if (this.setTypings(cachedTypings)) {
hasChanges = this.updateGraphWorker() || hasChanges;
}
}
else {
this.lastCachedUnresolvedImportsList = undefined;
}
if (hasChanges) {
this.projectStructureVersion++;
}
return !hasChanges;
}
/* @internal */
getCurrentProgram() {
return this.program;
}
protected removeExistingTypings(include: string[]): string[] {
const existing = ts.getAutomaticTypeDirectiveNames(this.getCompilerOptions(), this.directoryStructureHost);
return include.filter(i => existing.indexOf(i) < 0);
}
private setTypings(typings: SortedReadonlyArray<string>): boolean {
if (arrayIsEqualTo(this.typingFiles, typings)) {
return false;
}
this.typingFiles = typings;
this.markAsDirty();
return true;
}
private updateGraphWorker() {
const oldProgram = this.program;
Debug.assert(!this.isClosed(), "Called update graph worker of closed project");
this.writeLog(`Starting updateGraphWorker: Project: ${this.getProjectName()}`);
const start = timestamp();
this.hasInvalidatedResolution = this.resolutionCache.createHasInvalidatedResolution();
this.resolutionCache.startCachingPerDirectoryResolution();
this.program = this.languageService.getProgram();
this.resolutionCache.finishCachingPerDirectoryResolution();
// bump up the version if
// - oldProgram is not set - this is a first time updateGraph is called
// - newProgram is different from the old program and structure of the old program was not reused.
const hasChanges = !oldProgram || (this.program !== oldProgram && !(oldProgram.structureIsReused & StructureIsReused.Completely));
this.hasChangedAutomaticTypeDirectiveNames = false;
if (hasChanges) {
if (oldProgram) {
for (const f of oldProgram.getSourceFiles()) {
if (this.program.getSourceFileByPath(f.path)) {
continue;
}
// new program does not contain this file - detach it from the project
this.detachScriptInfoFromProject(f.fileName);
}
}
// Update the missing file paths watcher
updateMissingFilePathsWatch(
this.program,
this.missingFilesMap || (this.missingFilesMap = createMap()),
// Watch the missing files
missingFilePath => this.addMissingFileWatcher(missingFilePath)
);
// Watch the type locations that would be added to program as part of automatic type resolutions
if (this.languageServiceEnabled) {
this.resolutionCache.updateTypeRootsWatch();
}
}
const oldExternalFiles = this.externalFiles || emptyArray as SortedReadonlyArray<string>;
this.externalFiles = this.getExternalFiles();
enumerateInsertsAndDeletes(this.externalFiles, oldExternalFiles,
// Ensure a ScriptInfo is created for new external files. This is performed indirectly
// by the LSHost for files in the program when the program is retrieved above but
// the program doesn't contain external files so this must be done explicitly.
inserted => {
const scriptInfo = this.projectService.getOrCreateScriptInfoNotOpenedByClient(inserted, this.currentDirectory, this.directoryStructureHost);
scriptInfo.attachToProject(this);
},
removed => this.detachScriptInfoFromProject(removed),
compareStringsCaseSensitive
);
const elapsed = timestamp() - start;
this.writeLog(`Finishing updateGraphWorker: Project: ${this.getProjectName()} structureChanged: ${hasChanges} Elapsed: ${elapsed}ms`);
return hasChanges;
}
private detachScriptInfoFromProject(uncheckedFileName: string) {
const scriptInfoToDetach = this.projectService.getScriptInfo(uncheckedFileName);
if (scriptInfoToDetach) {
scriptInfoToDetach.detachFromProject(this);
this.resolutionCache.removeResolutionsOfFile(scriptInfoToDetach.path);
}
}
private addMissingFileWatcher(missingFilePath: Path) {
const fileWatcher = this.projectService.watchFile(
this.projectService.host,
missingFilePath,
(fileName, eventKind) => {
if (this.projectKind === ProjectKind.Configured) {
this.getCachedDirectoryStructureHost().addOrDeleteFile(fileName, missingFilePath, eventKind);
}
if (eventKind === FileWatcherEventKind.Created && this.missingFilesMap.has(missingFilePath)) {
this.missingFilesMap.delete(missingFilePath);
fileWatcher.close();
// When a missing file is created, we should update the graph.
this.projectService.delayUpdateProjectGraphAndInferredProjectsRefresh(this);
}
},
WatchType.MissingFilePath,
this
);
return fileWatcher;
}
private isWatchedMissingFile(path: Path) {
return this.missingFilesMap && this.missingFilesMap.has(path);
}
getScriptInfoForNormalizedPath(fileName: NormalizedPath) {
const scriptInfo = this.projectService.getScriptInfoForPath(this.toPath(fileName));
if (scriptInfo && !scriptInfo.isAttached(this)) {
return Errors.ThrowProjectDoesNotContainDocument(fileName, this);
}
return scriptInfo;
}
getScriptInfo(uncheckedFileName: string) {
return this.projectService.getScriptInfo(uncheckedFileName);
}
filesToString(writeProjectFileNames: boolean) {
if (!this.program) {
return "\tFiles (0)\n";
}
const sourceFiles = this.program.getSourceFiles();
let strBuilder = `\tFiles (${sourceFiles.length})\n`;
if (writeProjectFileNames) {
for (const file of sourceFiles) {
strBuilder += `\t${file.fileName}\n`;
}
}
return strBuilder;
}
setCompilerOptions(compilerOptions: CompilerOptions) {
if (compilerOptions) {
compilerOptions.allowNonTsExtensions = true;
if (changesAffectModuleResolution(this.compilerOptions, compilerOptions)) {
// reset cached unresolved imports if changes in compiler options affected module resolution
this.cachedUnresolvedImportsPerFile.clear();
this.lastCachedUnresolvedImportsList = undefined;
}
const oldOptions = this.compilerOptions;
this.compilerOptions = compilerOptions;
this.setInternalCompilerOptionsForEmittingJsFiles();
if (changesAffectModuleResolution(oldOptions, compilerOptions)) {
this.resolutionCache.clear();
}
this.markAsDirty();
}
}
/* @internal */
getChangesSinceVersion(lastKnownVersion?: number): ProjectFilesWithTSDiagnostics {
this.updateGraph();
const info = {
projectName: this.getProjectName(),
version: this.projectStructureVersion,
isInferred: this.projectKind === ProjectKind.Inferred,
options: this.getCompilationSettings(),