98ab3a788f
* Add failing test * Ensure source files are bound before analyzing them
559 lines
28 KiB
TypeScript
559 lines
28 KiB
TypeScript
/*@internal*/
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namespace ts {
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export function getFileEmitOutput(program: Program, sourceFile: SourceFile, emitOnlyDtsFiles: boolean,
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cancellationToken?: CancellationToken, customTransformers?: CustomTransformers, forceDtsEmit?: boolean): EmitOutput {
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const outputFiles: OutputFile[] = [];
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const { emitSkipped, diagnostics, exportedModulesFromDeclarationEmit } = program.emit(sourceFile, writeFile, cancellationToken, emitOnlyDtsFiles, customTransformers, forceDtsEmit);
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return { outputFiles, emitSkipped, diagnostics, exportedModulesFromDeclarationEmit };
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function writeFile(fileName: string, text: string, writeByteOrderMark: boolean) {
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outputFiles.push({ name: fileName, writeByteOrderMark, text });
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}
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}
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export interface ReusableBuilderState {
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/**
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* Information of the file eg. its version, signature etc
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*/
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fileInfos: ReadonlyESMap<Path, BuilderState.FileInfo>;
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/**
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* Contains the map of ReferencedSet=Referenced files of the file if module emit is enabled
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* Otherwise undefined
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* Thus non undefined value indicates, module emit
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*/
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readonly referencedMap?: ReadonlyESMap<Path, BuilderState.ReferencedSet> | undefined;
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/**
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* Contains the map of exported modules ReferencedSet=exported module files from the file if module emit is enabled
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* Otherwise undefined
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*/
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readonly exportedModulesMap?: ReadonlyESMap<Path, BuilderState.ReferencedSet> | undefined;
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}
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export interface BuilderState {
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/**
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* Information of the file eg. its version, signature etc
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*/
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fileInfos: ESMap<Path, BuilderState.FileInfo>;
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/**
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* Contains the map of ReferencedSet=Referenced files of the file if module emit is enabled
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* Otherwise undefined
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* Thus non undefined value indicates, module emit
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*/
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readonly referencedMap: ReadonlyESMap<Path, BuilderState.ReferencedSet> | undefined;
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/**
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* Contains the map of exported modules ReferencedSet=exported module files from the file if module emit is enabled
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* Otherwise undefined
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*/
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readonly exportedModulesMap: ESMap<Path, BuilderState.ReferencedSet> | undefined;
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/**
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* Map of files that have already called update signature.
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* That means hence forth these files are assumed to have
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* no change in their signature for this version of the program
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*/
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hasCalledUpdateShapeSignature: Set<Path>;
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/**
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* Cache of all files excluding default library file for the current program
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*/
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allFilesExcludingDefaultLibraryFile?: readonly SourceFile[];
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/**
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* Cache of all the file names
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*/
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allFileNames?: readonly string[];
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}
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export namespace BuilderState {
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/**
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* Information about the source file: Its version and optional signature from last emit
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*/
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export interface FileInfo {
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readonly version: string;
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signature: string | undefined;
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affectsGlobalScope: boolean;
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}
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/**
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* Referenced files with values for the keys as referenced file's path to be true
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*/
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export type ReferencedSet = ReadonlySet<Path>;
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/**
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* Compute the hash to store the shape of the file
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*/
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export type ComputeHash = (data: string) => string;
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/**
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* Exported modules to from declaration emit being computed.
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* This can contain false in the affected file path to specify that there are no exported module(types from other modules) for this file
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*/
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export type ComputingExportedModulesMap = ESMap<Path, ReferencedSet | false>;
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/**
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* Get the referencedFile from the imported module symbol
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*/
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function getReferencedFileFromImportedModuleSymbol(symbol: Symbol) {
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if (symbol.declarations && symbol.declarations[0]) {
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const declarationSourceFile = getSourceFileOfNode(symbol.declarations[0]);
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return declarationSourceFile && declarationSourceFile.resolvedPath;
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}
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}
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/**
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* Get the referencedFile from the import name node from file
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*/
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function getReferencedFileFromImportLiteral(checker: TypeChecker, importName: StringLiteralLike) {
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const symbol = checker.getSymbolAtLocation(importName);
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return symbol && getReferencedFileFromImportedModuleSymbol(symbol);
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}
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/**
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* Gets the path to reference file from file name, it could be resolvedPath if present otherwise path
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*/
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function getReferencedFileFromFileName(program: Program, fileName: string, sourceFileDirectory: Path, getCanonicalFileName: GetCanonicalFileName): Path {
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return toPath(program.getProjectReferenceRedirect(fileName) || fileName, sourceFileDirectory, getCanonicalFileName);
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}
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/**
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* Gets the referenced files for a file from the program with values for the keys as referenced file's path to be true
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*/
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function getReferencedFiles(program: Program, sourceFile: SourceFile, getCanonicalFileName: GetCanonicalFileName): Set<Path> | undefined {
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let referencedFiles: Set<Path> | undefined;
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// We need to use a set here since the code can contain the same import twice,
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// but that will only be one dependency.
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// To avoid invernal conversion, the key of the referencedFiles map must be of type Path
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if (sourceFile.imports && sourceFile.imports.length > 0) {
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const checker: TypeChecker = program.getTypeChecker();
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for (const importName of sourceFile.imports) {
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const declarationSourceFilePath = getReferencedFileFromImportLiteral(checker, importName);
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if (declarationSourceFilePath) {
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addReferencedFile(declarationSourceFilePath);
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}
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}
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}
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const sourceFileDirectory = getDirectoryPath(sourceFile.resolvedPath);
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// Handle triple slash references
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if (sourceFile.referencedFiles && sourceFile.referencedFiles.length > 0) {
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for (const referencedFile of sourceFile.referencedFiles) {
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const referencedPath = getReferencedFileFromFileName(program, referencedFile.fileName, sourceFileDirectory, getCanonicalFileName);
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addReferencedFile(referencedPath);
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}
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}
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// Handle type reference directives
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if (sourceFile.resolvedTypeReferenceDirectiveNames) {
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sourceFile.resolvedTypeReferenceDirectiveNames.forEach((resolvedTypeReferenceDirective) => {
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if (!resolvedTypeReferenceDirective) {
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return;
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}
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const fileName = resolvedTypeReferenceDirective.resolvedFileName!; // TODO: GH#18217
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const typeFilePath = getReferencedFileFromFileName(program, fileName, sourceFileDirectory, getCanonicalFileName);
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addReferencedFile(typeFilePath);
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});
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}
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// Add module augmentation as references
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if (sourceFile.moduleAugmentations.length) {
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const checker = program.getTypeChecker();
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for (const moduleName of sourceFile.moduleAugmentations) {
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if (!isStringLiteral(moduleName)) { continue; }
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const symbol = checker.getSymbolAtLocation(moduleName);
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if (!symbol) { continue; }
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// Add any file other than our own as reference
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addReferenceFromAmbientModule(symbol);
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}
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}
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// From ambient modules
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for (const ambientModule of program.getTypeChecker().getAmbientModules()) {
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if (ambientModule.declarations.length > 1) {
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addReferenceFromAmbientModule(ambientModule);
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}
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}
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return referencedFiles;
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function addReferenceFromAmbientModule(symbol: Symbol) {
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// Add any file other than our own as reference
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for (const declaration of symbol.declarations) {
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const declarationSourceFile = getSourceFileOfNode(declaration);
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if (declarationSourceFile &&
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declarationSourceFile !== sourceFile) {
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addReferencedFile(declarationSourceFile.resolvedPath);
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}
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}
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}
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function addReferencedFile(referencedPath: Path) {
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(referencedFiles || (referencedFiles = new Set())).add(referencedPath);
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}
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}
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/**
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* Returns true if oldState is reusable, that is the emitKind = module/non module has not changed
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*/
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export function canReuseOldState(newReferencedMap: ReadonlyESMap<Path, ReferencedSet> | undefined, oldState: Readonly<ReusableBuilderState> | undefined) {
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return oldState && !oldState.referencedMap === !newReferencedMap;
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}
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/**
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* Creates the state of file references and signature for the new program from oldState if it is safe
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*/
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export function create(newProgram: Program, getCanonicalFileName: GetCanonicalFileName, oldState?: Readonly<ReusableBuilderState>): BuilderState {
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const fileInfos = new Map<Path, FileInfo>();
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const referencedMap = newProgram.getCompilerOptions().module !== ModuleKind.None ? new Map<Path, ReferencedSet>() : undefined;
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const exportedModulesMap = referencedMap ? new Map<Path, ReferencedSet>() : undefined;
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const hasCalledUpdateShapeSignature = new Set<Path>();
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const useOldState = canReuseOldState(referencedMap, oldState);
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// Ensure source files have parent pointers set
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newProgram.getTypeChecker();
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// Create the reference map, and set the file infos
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for (const sourceFile of newProgram.getSourceFiles()) {
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const version = Debug.checkDefined(sourceFile.version, "Program intended to be used with Builder should have source files with versions set");
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const oldInfo = useOldState ? oldState!.fileInfos.get(sourceFile.resolvedPath) : undefined;
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if (referencedMap) {
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const newReferences = getReferencedFiles(newProgram, sourceFile, getCanonicalFileName);
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if (newReferences) {
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referencedMap.set(sourceFile.resolvedPath, newReferences);
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}
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// Copy old visible to outside files map
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if (useOldState) {
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const exportedModules = oldState!.exportedModulesMap!.get(sourceFile.resolvedPath);
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if (exportedModules) {
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exportedModulesMap!.set(sourceFile.resolvedPath, exportedModules);
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}
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}
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}
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fileInfos.set(sourceFile.resolvedPath, { version, signature: oldInfo && oldInfo.signature, affectsGlobalScope: isFileAffectingGlobalScope(sourceFile) });
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}
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return {
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fileInfos,
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referencedMap,
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exportedModulesMap,
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hasCalledUpdateShapeSignature
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};
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}
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/**
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* Releases needed properties
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*/
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export function releaseCache(state: BuilderState) {
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state.allFilesExcludingDefaultLibraryFile = undefined;
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state.allFileNames = undefined;
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}
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/**
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* Creates a clone of the state
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*/
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export function clone(state: Readonly<BuilderState>): BuilderState {
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// Dont need to backup allFiles info since its cache anyway
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return {
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fileInfos: new Map(state.fileInfos),
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referencedMap: state.referencedMap && new Map(state.referencedMap),
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exportedModulesMap: state.exportedModulesMap && new Map(state.exportedModulesMap),
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hasCalledUpdateShapeSignature: new Set(state.hasCalledUpdateShapeSignature),
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};
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}
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/**
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* Gets the files affected by the path from the program
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*/
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export function getFilesAffectedBy(state: BuilderState, programOfThisState: Program, path: Path, cancellationToken: CancellationToken | undefined, computeHash: ComputeHash, cacheToUpdateSignature?: ESMap<Path, string>, exportedModulesMapCache?: ComputingExportedModulesMap): readonly SourceFile[] {
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// Since the operation could be cancelled, the signatures are always stored in the cache
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// They will be committed once it is safe to use them
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// eg when calling this api from tsserver, if there is no cancellation of the operation
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// In the other cases the affected files signatures are committed only after the iteration through the result is complete
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const signatureCache = cacheToUpdateSignature || new Map();
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const sourceFile = programOfThisState.getSourceFileByPath(path);
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if (!sourceFile) {
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return emptyArray;
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}
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if (!updateShapeSignature(state, programOfThisState, sourceFile, signatureCache, cancellationToken, computeHash, exportedModulesMapCache)) {
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return [sourceFile];
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}
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const result = (state.referencedMap ? getFilesAffectedByUpdatedShapeWhenModuleEmit : getFilesAffectedByUpdatedShapeWhenNonModuleEmit)(state, programOfThisState, sourceFile, signatureCache, cancellationToken, computeHash, exportedModulesMapCache);
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if (!cacheToUpdateSignature) {
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// Commit all the signatures in the signature cache
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updateSignaturesFromCache(state, signatureCache);
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}
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return result;
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}
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/**
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* Updates the signatures from the cache into state's fileinfo signatures
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* This should be called whenever it is safe to commit the state of the builder
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*/
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export function updateSignaturesFromCache(state: BuilderState, signatureCache: ESMap<Path, string>) {
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signatureCache.forEach((signature, path) => updateSignatureOfFile(state, signature, path));
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}
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export function updateSignatureOfFile(state: BuilderState, signature: string | undefined, path: Path) {
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state.fileInfos.get(path)!.signature = signature;
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state.hasCalledUpdateShapeSignature.add(path);
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}
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/**
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* Returns if the shape of the signature has changed since last emit
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*/
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export function updateShapeSignature(state: Readonly<BuilderState>, programOfThisState: Program, sourceFile: SourceFile, cacheToUpdateSignature: ESMap<Path, string>, cancellationToken: CancellationToken | undefined, computeHash: ComputeHash, exportedModulesMapCache?: ComputingExportedModulesMap) {
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Debug.assert(!!sourceFile);
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Debug.assert(!exportedModulesMapCache || !!state.exportedModulesMap, "Compute visible to outside map only if visibleToOutsideReferencedMap present in the state");
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// If we have cached the result for this file, that means hence forth we should assume file shape is uptodate
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if (state.hasCalledUpdateShapeSignature.has(sourceFile.resolvedPath) || cacheToUpdateSignature.has(sourceFile.resolvedPath)) {
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return false;
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}
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const info = state.fileInfos.get(sourceFile.resolvedPath);
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if (!info) return Debug.fail();
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const prevSignature = info.signature;
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let latestSignature: string;
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if (sourceFile.isDeclarationFile) {
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latestSignature = sourceFile.version;
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if (exportedModulesMapCache && latestSignature !== prevSignature) {
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// All the references in this file are exported
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const references = state.referencedMap ? state.referencedMap.get(sourceFile.resolvedPath) : undefined;
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exportedModulesMapCache.set(sourceFile.resolvedPath, references || false);
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}
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}
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else {
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const emitOutput = getFileEmitOutput(
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programOfThisState,
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sourceFile,
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/*emitOnlyDtsFiles*/ true,
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cancellationToken,
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/*customTransformers*/ undefined,
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/*forceDtsEmit*/ true
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);
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const firstDts = emitOutput.outputFiles &&
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programOfThisState.getCompilerOptions().declarationMap ?
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emitOutput.outputFiles.length > 1 ? emitOutput.outputFiles[1] : undefined :
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emitOutput.outputFiles.length > 0 ? emitOutput.outputFiles[0] : undefined;
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if (firstDts) {
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Debug.assert(fileExtensionIs(firstDts.name, Extension.Dts), "File extension for signature expected to be dts", () => `Found: ${getAnyExtensionFromPath(firstDts.name)} for ${firstDts.name}:: All output files: ${JSON.stringify(emitOutput.outputFiles.map(f => f.name))}`);
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latestSignature = computeHash(firstDts.text);
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if (exportedModulesMapCache && latestSignature !== prevSignature) {
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updateExportedModules(sourceFile, emitOutput.exportedModulesFromDeclarationEmit, exportedModulesMapCache);
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}
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}
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else {
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latestSignature = prevSignature!; // TODO: GH#18217
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}
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}
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cacheToUpdateSignature.set(sourceFile.resolvedPath, latestSignature);
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return !prevSignature || latestSignature !== prevSignature;
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}
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/**
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* Coverts the declaration emit result into exported modules map
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*/
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function updateExportedModules(sourceFile: SourceFile, exportedModulesFromDeclarationEmit: ExportedModulesFromDeclarationEmit | undefined, exportedModulesMapCache: ComputingExportedModulesMap) {
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if (!exportedModulesFromDeclarationEmit) {
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exportedModulesMapCache.set(sourceFile.resolvedPath, false);
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return;
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}
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let exportedModules: Set<Path> | undefined;
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exportedModulesFromDeclarationEmit.forEach(symbol => addExportedModule(getReferencedFileFromImportedModuleSymbol(symbol)));
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exportedModulesMapCache.set(sourceFile.resolvedPath, exportedModules || false);
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function addExportedModule(exportedModulePath: Path | undefined) {
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if (exportedModulePath) {
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if (!exportedModules) {
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exportedModules = new Set();
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}
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exportedModules.add(exportedModulePath);
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}
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}
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}
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/**
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* Updates the exported modules from cache into state's exported modules map
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* This should be called whenever it is safe to commit the state of the builder
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*/
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export function updateExportedFilesMapFromCache(state: BuilderState, exportedModulesMapCache: ComputingExportedModulesMap | undefined) {
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if (exportedModulesMapCache) {
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Debug.assert(!!state.exportedModulesMap);
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exportedModulesMapCache.forEach((exportedModules, path) => {
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if (exportedModules) {
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state.exportedModulesMap!.set(path, exportedModules);
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}
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else {
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state.exportedModulesMap!.delete(path);
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}
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});
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}
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}
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/**
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* Get all the dependencies of the sourceFile
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*/
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export function getAllDependencies(state: BuilderState, programOfThisState: Program, sourceFile: SourceFile): readonly string[] {
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const compilerOptions = programOfThisState.getCompilerOptions();
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// With --out or --outFile all outputs go into single file, all files depend on each other
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if (outFile(compilerOptions)) {
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return getAllFileNames(state, programOfThisState);
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}
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// If this is non module emit, or its a global file, it depends on all the source files
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if (!state.referencedMap || isFileAffectingGlobalScope(sourceFile)) {
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return getAllFileNames(state, programOfThisState);
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}
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// Get the references, traversing deep from the referenceMap
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const seenMap = new Set<Path>();
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const queue = [sourceFile.resolvedPath];
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while (queue.length) {
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const path = queue.pop()!;
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if (!seenMap.has(path)) {
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seenMap.add(path);
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const references = state.referencedMap.get(path);
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if (references) {
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const iterator = references.keys();
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for (let iterResult = iterator.next(); !iterResult.done; iterResult = iterator.next()) {
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queue.push(iterResult.value);
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}
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}
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}
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}
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return arrayFrom(mapDefinedIterator(seenMap.keys(), path => programOfThisState.getSourceFileByPath(path)?.fileName ?? path));
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}
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/**
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* Gets the names of all files from the program
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*/
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function getAllFileNames(state: BuilderState, programOfThisState: Program): readonly string[] {
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if (!state.allFileNames) {
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const sourceFiles = programOfThisState.getSourceFiles();
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state.allFileNames = sourceFiles === emptyArray ? emptyArray : sourceFiles.map(file => file.fileName);
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}
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return state.allFileNames;
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}
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/**
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* Gets the files referenced by the the file path
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*/
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export function getReferencedByPaths(state: Readonly<BuilderState>, referencedFilePath: Path) {
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return arrayFrom(mapDefinedIterator(state.referencedMap!.entries(), ([filePath, referencesInFile]) =>
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referencesInFile.has(referencedFilePath) ? filePath : undefined
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));
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}
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/**
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* For script files that contains only ambient external modules, although they are not actually external module files,
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* they can only be consumed via importing elements from them. Regular script files cannot consume them. Therefore,
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* there are no point to rebuild all script files if these special files have changed. However, if any statement
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* in the file is not ambient external module, we treat it as a regular script file.
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*/
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function containsOnlyAmbientModules(sourceFile: SourceFile) {
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for (const statement of sourceFile.statements) {
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if (!isModuleWithStringLiteralName(statement)) {
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return false;
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}
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}
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return true;
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}
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/**
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* Return true if file contains anything that augments to global scope we need to build them as if
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* they are global files as well as module
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*/
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function containsGlobalScopeAugmentation(sourceFile: SourceFile) {
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return some(sourceFile.moduleAugmentations, augmentation => isGlobalScopeAugmentation(augmentation.parent as ModuleDeclaration));
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}
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/**
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* Return true if the file will invalidate all files because it affectes global scope
|
|
*/
|
|
function isFileAffectingGlobalScope(sourceFile: SourceFile) {
|
|
return containsGlobalScopeAugmentation(sourceFile) ||
|
|
!isExternalModule(sourceFile) && !containsOnlyAmbientModules(sourceFile);
|
|
}
|
|
|
|
/**
|
|
* Gets all files of the program excluding the default library file
|
|
*/
|
|
export function getAllFilesExcludingDefaultLibraryFile(state: BuilderState, programOfThisState: Program, firstSourceFile: SourceFile | undefined): readonly SourceFile[] {
|
|
// Use cached result
|
|
if (state.allFilesExcludingDefaultLibraryFile) {
|
|
return state.allFilesExcludingDefaultLibraryFile;
|
|
}
|
|
|
|
let result: SourceFile[] | undefined;
|
|
if (firstSourceFile) addSourceFile(firstSourceFile);
|
|
for (const sourceFile of programOfThisState.getSourceFiles()) {
|
|
if (sourceFile !== firstSourceFile) {
|
|
addSourceFile(sourceFile);
|
|
}
|
|
}
|
|
state.allFilesExcludingDefaultLibraryFile = result || emptyArray;
|
|
return state.allFilesExcludingDefaultLibraryFile;
|
|
|
|
function addSourceFile(sourceFile: SourceFile) {
|
|
if (!programOfThisState.isSourceFileDefaultLibrary(sourceFile)) {
|
|
(result || (result = [])).push(sourceFile);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* When program emits non modular code, gets the files affected by the sourceFile whose shape has changed
|
|
*/
|
|
function getFilesAffectedByUpdatedShapeWhenNonModuleEmit(state: BuilderState, programOfThisState: Program, sourceFileWithUpdatedShape: SourceFile) {
|
|
const compilerOptions = programOfThisState.getCompilerOptions();
|
|
// If `--out` or `--outFile` is specified, any new emit will result in re-emitting the entire project,
|
|
// so returning the file itself is good enough.
|
|
if (compilerOptions && outFile(compilerOptions)) {
|
|
return [sourceFileWithUpdatedShape];
|
|
}
|
|
return getAllFilesExcludingDefaultLibraryFile(state, programOfThisState, sourceFileWithUpdatedShape);
|
|
}
|
|
|
|
/**
|
|
* When program emits modular code, gets the files affected by the sourceFile whose shape has changed
|
|
*/
|
|
function getFilesAffectedByUpdatedShapeWhenModuleEmit(state: BuilderState, programOfThisState: Program, sourceFileWithUpdatedShape: SourceFile, cacheToUpdateSignature: ESMap<Path, string>, cancellationToken: CancellationToken | undefined, computeHash: ComputeHash | undefined, exportedModulesMapCache: ComputingExportedModulesMap | undefined) {
|
|
if (isFileAffectingGlobalScope(sourceFileWithUpdatedShape)) {
|
|
return getAllFilesExcludingDefaultLibraryFile(state, programOfThisState, sourceFileWithUpdatedShape);
|
|
}
|
|
|
|
const compilerOptions = programOfThisState.getCompilerOptions();
|
|
if (compilerOptions && (compilerOptions.isolatedModules || outFile(compilerOptions))) {
|
|
return [sourceFileWithUpdatedShape];
|
|
}
|
|
|
|
// Now we need to if each file in the referencedBy list has a shape change as well.
|
|
// Because if so, its own referencedBy files need to be saved as well to make the
|
|
// emitting result consistent with files on disk.
|
|
const seenFileNamesMap = new Map<Path, SourceFile>();
|
|
|
|
// Start with the paths this file was referenced by
|
|
seenFileNamesMap.set(sourceFileWithUpdatedShape.resolvedPath, sourceFileWithUpdatedShape);
|
|
const queue = getReferencedByPaths(state, sourceFileWithUpdatedShape.resolvedPath);
|
|
while (queue.length > 0) {
|
|
const currentPath = queue.pop()!;
|
|
if (!seenFileNamesMap.has(currentPath)) {
|
|
const currentSourceFile = programOfThisState.getSourceFileByPath(currentPath)!;
|
|
seenFileNamesMap.set(currentPath, currentSourceFile);
|
|
if (currentSourceFile && updateShapeSignature(state, programOfThisState, currentSourceFile, cacheToUpdateSignature, cancellationToken, computeHash!, exportedModulesMapCache)) { // TODO: GH#18217
|
|
queue.push(...getReferencedByPaths(state, currentSourceFile.resolvedPath));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return array of values that needs emit
|
|
// Return array of values that needs emit
|
|
return arrayFrom(mapDefinedIterator(seenFileNamesMap.values(), value => value));
|
|
}
|
|
}
|
|
}
|