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Copy pathharnessLanguageService.ts
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644 lines (541 loc) · 28.5 KB
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/// <reference path="..\services\services.ts" />
/// <reference path="..\services\shims.ts" />
/// <reference path="..\server\client.ts" />
/// <reference path="harness.ts" />
namespace Harness.LanguageService {
export class ScriptInfo {
public version: number = 1;
public editRanges: { length: number; textChangeRange: ts.TextChangeRange; }[] = [];
private lineMap: number[] = undefined;
constructor(public fileName: string, public content: string) {
this.setContent(content);
}
private setContent(content: string): void {
this.content = content;
this.lineMap = undefined;
}
public getLineMap(): number[] {
return this.lineMap || (this.lineMap = ts.computeLineStarts(this.content));
}
public updateContent(content: string): void {
this.editRanges = [];
this.setContent(content);
this.version++;
}
public editContent(start: number, end: number, newText: string): void {
// Apply edits
const prefix = this.content.substring(0, start);
const middle = newText;
const suffix = this.content.substring(end);
this.setContent(prefix + middle + suffix);
// Store edit range + new length of script
this.editRanges.push({
length: this.content.length,
textChangeRange: ts.createTextChangeRange(
ts.createTextSpanFromBounds(start, end), newText.length)
});
// Update version #
this.version++;
}
public getTextChangeRangeBetweenVersions(startVersion: number, endVersion: number): ts.TextChangeRange {
if (startVersion === endVersion) {
// No edits!
return ts.unchangedTextChangeRange;
}
const initialEditRangeIndex = this.editRanges.length - (this.version - startVersion);
const lastEditRangeIndex = this.editRanges.length - (this.version - endVersion);
const entries = this.editRanges.slice(initialEditRangeIndex, lastEditRangeIndex);
return ts.collapseTextChangeRangesAcrossMultipleVersions(entries.map(e => e.textChangeRange));
}
}
class ScriptSnapshot implements ts.IScriptSnapshot {
public textSnapshot: string;
public version: number;
constructor(public scriptInfo: ScriptInfo) {
this.textSnapshot = scriptInfo.content;
this.version = scriptInfo.version;
}
public getText(start: number, end: number): string {
return this.textSnapshot.substring(start, end);
}
public getLength(): number {
return this.textSnapshot.length;
}
public getChangeRange(oldScript: ts.IScriptSnapshot): ts.TextChangeRange {
const oldShim = <ScriptSnapshot>oldScript;
return this.scriptInfo.getTextChangeRangeBetweenVersions(oldShim.version, this.version);
}
}
class ScriptSnapshotProxy implements ts.ScriptSnapshotShim {
constructor(public scriptSnapshot: ts.IScriptSnapshot) {
}
public getText(start: number, end: number): string {
return this.scriptSnapshot.getText(start, end);
}
public getLength(): number {
return this.scriptSnapshot.getLength();
}
public getChangeRange(oldScript: ts.ScriptSnapshotShim): string {
const oldShim = <ScriptSnapshotProxy>oldScript;
const range = this.scriptSnapshot.getChangeRange(oldShim.scriptSnapshot);
if (range === undefined) {
return undefined;
}
return JSON.stringify({ span: { start: range.span.start, length: range.span.length }, newLength: range.newLength });
}
}
class DefaultHostCancellationToken implements ts.HostCancellationToken {
public static Instance = new DefaultHostCancellationToken();
public isCancellationRequested() {
return false;
}
}
export interface LanguageServiceAdapter {
getHost(): LanguageServiceAdapterHost;
getLanguageService(): ts.LanguageService;
getClassifier(): ts.Classifier;
getPreProcessedFileInfo(fileName: string, fileContents: string): ts.PreProcessedFileInfo;
}
export class LanguageServiceAdapterHost {
protected fileNameToScript: ts.Map<ScriptInfo> = {};
constructor(protected cancellationToken = DefaultHostCancellationToken.Instance,
protected settings = ts.getDefaultCompilerOptions()) {
}
public getNewLine(): string {
return "\r\n";
}
public getFilenames(): string[] {
const fileNames: string[] = [];
ts.forEachKey(this.fileNameToScript, (fileName) => { fileNames.push(fileName); });
return fileNames;
}
public getScriptInfo(fileName: string): ScriptInfo {
return ts.lookUp(this.fileNameToScript, fileName);
}
public addScript(fileName: string, content: string): void {
this.fileNameToScript[fileName] = new ScriptInfo(fileName, content);
}
public editScript(fileName: string, start: number, end: number, newText: string) {
const script = this.getScriptInfo(fileName);
if (script !== undefined) {
script.editContent(start, end, newText);
return;
}
throw new Error("No script with name '" + fileName + "'");
}
public openFile(fileName: string, content?: string): void {
}
/**
* @param line 0 based index
* @param col 0 based index
*/
public positionToLineAndCharacter(fileName: string, position: number): ts.LineAndCharacter {
const script: ScriptInfo = this.fileNameToScript[fileName];
assert.isNotNull(script);
return ts.computeLineAndCharacterOfPosition(script.getLineMap(), position);
}
}
/// Native adapter
class NativeLanguageServiceHost extends LanguageServiceAdapterHost implements ts.LanguageServiceHost {
getCompilationSettings() { return this.settings; }
getCancellationToken() { return this.cancellationToken; }
getCurrentDirectory(): string { return ""; }
getDefaultLibFileName(): string { return ""; }
getScriptFileNames(): string[] { return this.getFilenames(); }
getScriptSnapshot(fileName: string): ts.IScriptSnapshot {
const script = this.getScriptInfo(fileName);
return script ? new ScriptSnapshot(script) : undefined;
}
getScriptVersion(fileName: string): string {
const script = this.getScriptInfo(fileName);
return script ? script.version.toString() : undefined;
}
log(s: string): void { }
trace(s: string): void { }
error(s: string): void { }
}
export class NativeLanugageServiceAdapter implements LanguageServiceAdapter {
private host: NativeLanguageServiceHost;
constructor(cancellationToken?: ts.HostCancellationToken, options?: ts.CompilerOptions) {
this.host = new NativeLanguageServiceHost(cancellationToken, options);
}
getHost() { return this.host; }
getLanguageService(): ts.LanguageService { return ts.createLanguageService(this.host); }
getClassifier(): ts.Classifier { return ts.createClassifier(); }
getPreProcessedFileInfo(fileName: string, fileContents: string): ts.PreProcessedFileInfo { return ts.preProcessFile(fileContents, /* readImportFiles */ true, ts.hasJavaScriptFileExtension(fileName)); }
}
/// Shim adapter
class ShimLanguageServiceHost extends LanguageServiceAdapterHost implements ts.LanguageServiceShimHost, ts.CoreServicesShimHost {
private nativeHost: NativeLanguageServiceHost;
public getModuleResolutionsForFile: (fileName: string) => string;
constructor(preprocessToResolve: boolean, cancellationToken?: ts.HostCancellationToken, options?: ts.CompilerOptions) {
super(cancellationToken, options);
this.nativeHost = new NativeLanguageServiceHost(cancellationToken, options);
if (preprocessToResolve) {
const compilerOptions = this.nativeHost.getCompilationSettings();
const moduleResolutionHost: ts.ModuleResolutionHost = {
fileExists: fileName => this.getScriptInfo(fileName) !== undefined,
readFile: fileName => {
const scriptInfo = this.getScriptInfo(fileName);
return scriptInfo && scriptInfo.content;
}
};
this.getModuleResolutionsForFile = (fileName) => {
const scriptInfo = this.getScriptInfo(fileName);
const preprocessInfo = ts.preProcessFile(scriptInfo.content, /*readImportFiles*/ true);
const imports: ts.Map<string> = {};
for (const module of preprocessInfo.importedFiles) {
const resolutionInfo = ts.resolveModuleName(module.fileName, fileName, compilerOptions, moduleResolutionHost);
if (resolutionInfo.resolvedModule) {
imports[module.fileName] = resolutionInfo.resolvedModule.resolvedFileName;
}
}
return JSON.stringify(imports);
};
}
}
getFilenames(): string[] { return this.nativeHost.getFilenames(); }
getScriptInfo(fileName: string): ScriptInfo { return this.nativeHost.getScriptInfo(fileName); }
addScript(fileName: string, content: string): void { this.nativeHost.addScript(fileName, content); }
editScript(fileName: string, start: number, end: number, newText: string): void { this.nativeHost.editScript(fileName, start, end, newText); }
positionToLineAndCharacter(fileName: string, position: number): ts.LineAndCharacter { return this.nativeHost.positionToLineAndCharacter(fileName, position); }
getCompilationSettings(): string { return JSON.stringify(this.nativeHost.getCompilationSettings()); }
getCancellationToken(): ts.HostCancellationToken { return this.nativeHost.getCancellationToken(); }
getCurrentDirectory(): string { return this.nativeHost.getCurrentDirectory(); }
getDefaultLibFileName(): string { return this.nativeHost.getDefaultLibFileName(); }
getScriptFileNames(): string { return JSON.stringify(this.nativeHost.getScriptFileNames()); }
getScriptSnapshot(fileName: string): ts.ScriptSnapshotShim {
const nativeScriptSnapshot = this.nativeHost.getScriptSnapshot(fileName);
return nativeScriptSnapshot && new ScriptSnapshotProxy(nativeScriptSnapshot);
}
getScriptVersion(fileName: string): string { return this.nativeHost.getScriptVersion(fileName); }
getLocalizedDiagnosticMessages(): string { return JSON.stringify({}); }
readDirectory(rootDir: string, extension: string): string {
throw new Error("NYI");
}
fileExists(fileName: string) { return this.getScriptInfo(fileName) !== undefined; }
readFile(fileName: string) {
const snapshot = this.nativeHost.getScriptSnapshot(fileName);
return snapshot && snapshot.getText(0, snapshot.getLength());
}
log(s: string): void { this.nativeHost.log(s); }
trace(s: string): void { this.nativeHost.trace(s); }
error(s: string): void { this.nativeHost.error(s); }
directoryExists(directoryName: string): boolean {
// for tests pessimistically assume that directory always exists
return true;
}
}
class ClassifierShimProxy implements ts.Classifier {
constructor(private shim: ts.ClassifierShim) {
}
getEncodedLexicalClassifications(text: string, lexState: ts.EndOfLineState, classifyKeywordsInGenerics?: boolean): ts.Classifications {
throw new Error("NYI");
}
getClassificationsForLine(text: string, lexState: ts.EndOfLineState, classifyKeywordsInGenerics?: boolean): ts.ClassificationResult {
const result = this.shim.getClassificationsForLine(text, lexState, classifyKeywordsInGenerics).split("\n");
const entries: ts.ClassificationInfo[] = [];
let i = 0;
let position = 0;
for (; i < result.length - 1; i += 2) {
const t = entries[i / 2] = {
length: parseInt(result[i]),
classification: parseInt(result[i + 1])
};
assert.isTrue(t.length > 0, "Result length should be greater than 0, got :" + t.length);
position += t.length;
}
const finalLexState = parseInt(result[result.length - 1]);
assert.equal(position, text.length, "Expected cumulative length of all entries to match the length of the source. expected: " + text.length + ", but got: " + position);
return {
finalLexState,
entries
};
}
}
function unwrapJSONCallResult(result: string): any {
const parsedResult = JSON.parse(result);
if (parsedResult.error) {
throw new Error("Language Service Shim Error: " + JSON.stringify(parsedResult.error));
}
else if (parsedResult.canceled) {
throw new ts.OperationCanceledException();
}
return parsedResult.result;
}
class LanguageServiceShimProxy implements ts.LanguageService {
constructor(private shim: ts.LanguageServiceShim) {
}
cleanupSemanticCache(): void {
this.shim.cleanupSemanticCache();
}
getSyntacticDiagnostics(fileName: string): ts.Diagnostic[] {
return unwrapJSONCallResult(this.shim.getSyntacticDiagnostics(fileName));
}
getSemanticDiagnostics(fileName: string): ts.Diagnostic[] {
return unwrapJSONCallResult(this.shim.getSemanticDiagnostics(fileName));
}
getCompilerOptionsDiagnostics(): ts.Diagnostic[] {
return unwrapJSONCallResult(this.shim.getCompilerOptionsDiagnostics());
}
getSyntacticClassifications(fileName: string, span: ts.TextSpan): ts.ClassifiedSpan[] {
return unwrapJSONCallResult(this.shim.getSyntacticClassifications(fileName, span.start, span.length));
}
getSemanticClassifications(fileName: string, span: ts.TextSpan): ts.ClassifiedSpan[] {
return unwrapJSONCallResult(this.shim.getSemanticClassifications(fileName, span.start, span.length));
}
getEncodedSyntacticClassifications(fileName: string, span: ts.TextSpan): ts.Classifications {
return unwrapJSONCallResult(this.shim.getEncodedSyntacticClassifications(fileName, span.start, span.length));
}
getEncodedSemanticClassifications(fileName: string, span: ts.TextSpan): ts.Classifications {
return unwrapJSONCallResult(this.shim.getEncodedSemanticClassifications(fileName, span.start, span.length));
}
getCompletionsAtPosition(fileName: string, position: number): ts.CompletionInfo {
return unwrapJSONCallResult(this.shim.getCompletionsAtPosition(fileName, position));
}
getCompletionEntryDetails(fileName: string, position: number, entryName: string): ts.CompletionEntryDetails {
return unwrapJSONCallResult(this.shim.getCompletionEntryDetails(fileName, position, entryName));
}
getQuickInfoAtPosition(fileName: string, position: number): ts.QuickInfo {
return unwrapJSONCallResult(this.shim.getQuickInfoAtPosition(fileName, position));
}
getNameOrDottedNameSpan(fileName: string, startPos: number, endPos: number): ts.TextSpan {
return unwrapJSONCallResult(this.shim.getNameOrDottedNameSpan(fileName, startPos, endPos));
}
getBreakpointStatementAtPosition(fileName: string, position: number): ts.TextSpan {
return unwrapJSONCallResult(this.shim.getBreakpointStatementAtPosition(fileName, position));
}
getSignatureHelpItems(fileName: string, position: number): ts.SignatureHelpItems {
return unwrapJSONCallResult(this.shim.getSignatureHelpItems(fileName, position));
}
getRenameInfo(fileName: string, position: number): ts.RenameInfo {
return unwrapJSONCallResult(this.shim.getRenameInfo(fileName, position));
}
findRenameLocations(fileName: string, position: number, findInStrings: boolean, findInComments: boolean): ts.RenameLocation[] {
return unwrapJSONCallResult(this.shim.findRenameLocations(fileName, position, findInStrings, findInComments));
}
getDefinitionAtPosition(fileName: string, position: number): ts.DefinitionInfo[] {
return unwrapJSONCallResult(this.shim.getDefinitionAtPosition(fileName, position));
}
getTypeDefinitionAtPosition(fileName: string, position: number): ts.DefinitionInfo[] {
return unwrapJSONCallResult(this.shim.getTypeDefinitionAtPosition(fileName, position));
}
getReferencesAtPosition(fileName: string, position: number): ts.ReferenceEntry[] {
return unwrapJSONCallResult(this.shim.getReferencesAtPosition(fileName, position));
}
findReferences(fileName: string, position: number): ts.ReferencedSymbol[] {
return unwrapJSONCallResult(this.shim.findReferences(fileName, position));
}
getOccurrencesAtPosition(fileName: string, position: number): ts.ReferenceEntry[] {
return unwrapJSONCallResult(this.shim.getOccurrencesAtPosition(fileName, position));
}
getDocumentHighlights(fileName: string, position: number, filesToSearch: string[]): ts.DocumentHighlights[] {
return unwrapJSONCallResult(this.shim.getDocumentHighlights(fileName, position, JSON.stringify(filesToSearch)));
}
getNavigateToItems(searchValue: string): ts.NavigateToItem[] {
return unwrapJSONCallResult(this.shim.getNavigateToItems(searchValue));
}
getNavigationBarItems(fileName: string): ts.NavigationBarItem[] {
return unwrapJSONCallResult(this.shim.getNavigationBarItems(fileName));
}
getOutliningSpans(fileName: string): ts.OutliningSpan[] {
return unwrapJSONCallResult(this.shim.getOutliningSpans(fileName));
}
getTodoComments(fileName: string, descriptors: ts.TodoCommentDescriptor[]): ts.TodoComment[] {
return unwrapJSONCallResult(this.shim.getTodoComments(fileName, JSON.stringify(descriptors)));
}
getBraceMatchingAtPosition(fileName: string, position: number): ts.TextSpan[] {
return unwrapJSONCallResult(this.shim.getBraceMatchingAtPosition(fileName, position));
}
getIndentationAtPosition(fileName: string, position: number, options: ts.EditorOptions): number {
return unwrapJSONCallResult(this.shim.getIndentationAtPosition(fileName, position, JSON.stringify(options)));
}
getFormattingEditsForRange(fileName: string, start: number, end: number, options: ts.FormatCodeOptions): ts.TextChange[] {
return unwrapJSONCallResult(this.shim.getFormattingEditsForRange(fileName, start, end, JSON.stringify(options)));
}
getFormattingEditsForDocument(fileName: string, options: ts.FormatCodeOptions): ts.TextChange[] {
return unwrapJSONCallResult(this.shim.getFormattingEditsForDocument(fileName, JSON.stringify(options)));
}
getFormattingEditsAfterKeystroke(fileName: string, position: number, key: string, options: ts.FormatCodeOptions): ts.TextChange[] {
return unwrapJSONCallResult(this.shim.getFormattingEditsAfterKeystroke(fileName, position, key, JSON.stringify(options)));
}
getDocCommentTemplateAtPosition(fileName: string, position: number): ts.TextInsertion {
return unwrapJSONCallResult(this.shim.getDocCommentTemplateAtPosition(fileName, position));
}
getEmitOutput(fileName: string): ts.EmitOutput {
return unwrapJSONCallResult(this.shim.getEmitOutput(fileName));
}
getProgram(): ts.Program {
throw new Error("Program can not be marshaled across the shim layer.");
}
getSourceFile(fileName: string): ts.SourceFile {
throw new Error("SourceFile can not be marshaled across the shim layer.");
}
dispose(): void { this.shim.dispose({}); }
}
export class ShimLanugageServiceAdapter implements LanguageServiceAdapter {
private host: ShimLanguageServiceHost;
private factory: ts.TypeScriptServicesFactory;
constructor(preprocessToResolve: boolean, cancellationToken?: ts.HostCancellationToken, options?: ts.CompilerOptions) {
this.host = new ShimLanguageServiceHost(preprocessToResolve, cancellationToken, options);
this.factory = new TypeScript.Services.TypeScriptServicesFactory();
}
getHost() { return this.host; }
getLanguageService(): ts.LanguageService { return new LanguageServiceShimProxy(this.factory.createLanguageServiceShim(this.host)); }
getClassifier(): ts.Classifier { return new ClassifierShimProxy(this.factory.createClassifierShim(this.host)); }
getPreProcessedFileInfo(fileName: string, fileContents: string): ts.PreProcessedFileInfo {
let shimResult: {
referencedFiles: ts.IFileReference[];
importedFiles: ts.IFileReference[];
isLibFile: boolean;
};
const coreServicesShim = this.factory.createCoreServicesShim(this.host);
shimResult = unwrapJSONCallResult(coreServicesShim.getPreProcessedFileInfo(fileName, ts.ScriptSnapshot.fromString(fileContents)));
const convertResult: ts.PreProcessedFileInfo = {
referencedFiles: [],
importedFiles: [],
ambientExternalModules: [],
isLibFile: shimResult.isLibFile
};
ts.forEach(shimResult.referencedFiles, refFile => {
convertResult.referencedFiles.push({
fileName: refFile.path,
pos: refFile.position,
end: refFile.position + refFile.length
});
});
ts.forEach(shimResult.importedFiles, importedFile => {
convertResult.importedFiles.push({
fileName: importedFile.path,
pos: importedFile.position,
end: importedFile.position + importedFile.length
});
});
return convertResult;
}
}
// Server adapter
class SessionClientHost extends NativeLanguageServiceHost implements ts.server.SessionClientHost {
private client: ts.server.SessionClient;
constructor(cancellationToken: ts.HostCancellationToken, settings: ts.CompilerOptions) {
super(cancellationToken, settings);
}
onMessage(message: string): void {
}
writeMessage(message: string): void {
}
setClient(client: ts.server.SessionClient) {
this.client = client;
}
openFile(fileName: string, content?: string): void {
super.openFile(fileName, content);
this.client.openFile(fileName, content);
}
editScript(fileName: string, start: number, end: number, newText: string) {
super.editScript(fileName, start, end, newText);
this.client.changeFile(fileName, start, end, newText);
}
}
class SessionServerHost implements ts.server.ServerHost, ts.server.Logger {
args: string[] = [];
newLine: string;
useCaseSensitiveFileNames: boolean = false;
constructor(private host: NativeLanguageServiceHost) {
this.newLine = this.host.getNewLine();
}
onMessage(message: string): void {
}
writeMessage(message: string): void {
}
write(message: string): void {
this.writeMessage(message);
}
readFile(fileName: string): string {
if (fileName.indexOf(Harness.Compiler.defaultLibFileName) >= 0) {
fileName = Harness.Compiler.defaultLibFileName;
}
const snapshot = this.host.getScriptSnapshot(fileName);
return snapshot && snapshot.getText(0, snapshot.getLength());
}
writeFile(name: string, text: string, writeByteOrderMark: boolean): void {
}
resolvePath(path: string): string {
return path;
}
fileExists(path: string): boolean {
return !!this.host.getScriptSnapshot(path);
}
directoryExists(path: string): boolean {
return false;
}
getExecutingFilePath(): string {
return "";
}
exit(exitCode: number): void {
}
createDirectory(directoryName: string): void {
throw new Error("Not Implemented Yet.");
}
getCurrentDirectory(): string {
return this.host.getCurrentDirectory();
}
readDirectory(path: string, extension?: string): string[] {
throw new Error("Not implemented Yet.");
}
watchFile(fileName: string, callback: (fileName: string) => void): ts.FileWatcher {
return { close() { } };
}
watchDirectory(path: string, callback: (path: string) => void, recursive?: boolean): ts.FileWatcher {
return { close() { } };
}
close(): void {
}
info(message: string): void {
return this.host.log(message);
}
msg(message: string) {
return this.host.log(message);
}
loggingEnabled() {
return true;
}
isVerbose() {
return false;
}
endGroup(): void {
}
perftrc(message: string): void {
return this.host.log(message);
}
startGroup(): void {
}
}
export class ServerLanugageServiceAdapter implements LanguageServiceAdapter {
private host: SessionClientHost;
private client: ts.server.SessionClient;
constructor(cancellationToken?: ts.HostCancellationToken, options?: ts.CompilerOptions) {
// This is the main host that tests use to direct tests
const clientHost = new SessionClientHost(cancellationToken, options);
const client = new ts.server.SessionClient(clientHost);
// This host is just a proxy for the clientHost, it uses the client
// host to answer server queries about files on disk
const serverHost = new SessionServerHost(clientHost);
const server = new ts.server.Session(serverHost,
Buffer ? Buffer.byteLength : (string: string, encoding?: string) => string.length,
process.hrtime, serverHost);
// Fake the connection between the client and the server
serverHost.writeMessage = client.onMessage.bind(client);
clientHost.writeMessage = server.onMessage.bind(server);
// Wire the client to the host to get notifications when a file is open
// or edited.
clientHost.setClient(client);
// Set the properties
this.client = client;
this.host = clientHost;
}
getHost() { return this.host; }
getLanguageService(): ts.LanguageService { return this.client; }
getClassifier(): ts.Classifier { throw new Error("getClassifier is not available using the server interface."); }
getPreProcessedFileInfo(fileName: string, fileContents: string): ts.PreProcessedFileInfo { throw new Error("getPreProcessedFileInfo is not available using the server interface."); }
}
}
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