Moved createCompilerHost into parser.ts
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7fb92f8af0
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6 changed files with 85 additions and 69 deletions
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@ -268,6 +268,77 @@ module ts {
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}
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}
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// TODO (drosen, mhegazy): Move to a more appropriate file.
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export function createCompilerHost(options: CompilerOptions): CompilerHost {
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var currentDirectory: string;
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var existingDirectories: Map<boolean> = {};
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function getCanonicalFileName(fileName: string): string {
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// if underlying system can distinguish between two files whose names differs only in cases then file name already in canonical form.
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// otherwise use toLowerCase as a canonical form.
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return sys.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();
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}
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// returned by CScript sys environment
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var unsupportedFileEncodingErrorCode = -2147024809;
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function getSourceFile(filename: string, languageVersion: ScriptTarget, onError?: (message: string) => void): SourceFile {
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try {
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var text = sys.readFile(filename, options.charset);
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}
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catch (e) {
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if (onError) {
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onError(e.number === unsupportedFileEncodingErrorCode ?
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createCompilerDiagnostic(Diagnostics.Unsupported_file_encoding).messageText :
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e.message);
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}
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text = "";
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}
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return text !== undefined ? createSourceFile(filename, text, languageVersion, /*version:*/ "0") : undefined;
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}
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function writeFile(fileName: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void) {
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function directoryExists(directoryPath: string): boolean {
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if (hasProperty(existingDirectories, directoryPath)) {
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return true;
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}
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if (sys.directoryExists(directoryPath)) {
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existingDirectories[directoryPath] = true;
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return true;
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}
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return false;
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}
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function ensureDirectoriesExist(directoryPath: string) {
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if (directoryPath.length > getRootLength(directoryPath) && !directoryExists(directoryPath)) {
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var parentDirectory = getDirectoryPath(directoryPath);
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ensureDirectoriesExist(parentDirectory);
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sys.createDirectory(directoryPath);
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}
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}
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try {
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ensureDirectoriesExist(getDirectoryPath(normalizePath(fileName)));
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sys.writeFile(fileName, data, writeByteOrderMark);
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}
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catch (e) {
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if (onError) onError(e.message);
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}
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}
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return {
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getSourceFile,
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getDefaultLibFilename: options => combinePaths(getDirectoryPath(normalizePath(sys.getExecutingFilePath())), options.target === ScriptTarget.ES6 ? "lib.es6.d.ts" : "lib.d.ts"),
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writeFile,
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getCurrentDirectory: () => currentDirectory || (currentDirectory = sys.getCurrentDirectory()),
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useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
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getCanonicalFileName,
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getNewLine: () => sys.newLine
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};
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}
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const enum ParsingContext {
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SourceElements, // Elements in source file
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ModuleElements, // Elements in module declaration
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@ -133,75 +133,6 @@ module ts {
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reportStatisticalValue(name, (time / 1000).toFixed(2) + "s");
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}
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function createCompilerHost(options: CompilerOptions): CompilerHost {
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var currentDirectory: string;
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var existingDirectories: Map<boolean> = {};
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function getCanonicalFileName(fileName: string): string {
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// if underlying system can distinguish between two files whose names differs only in cases then file name already in canonical form.
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// otherwise use toLowerCase as a canonical form.
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return sys.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();
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}
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// returned by CScript sys environment
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var unsupportedFileEncodingErrorCode = -2147024809;
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function getSourceFile(filename: string, languageVersion: ScriptTarget, onError?: (message: string) => void): SourceFile {
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try {
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var text = sys.readFile(filename, options.charset);
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}
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catch (e) {
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if (onError) {
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onError(e.number === unsupportedFileEncodingErrorCode ?
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getDiagnosticText(Diagnostics.Unsupported_file_encoding) :
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e.message);
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}
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text = "";
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}
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return text !== undefined ? createSourceFile(filename, text, languageVersion, /*version:*/ "0") : undefined;
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}
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function writeFile(fileName: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void) {
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function directoryExists(directoryPath: string): boolean {
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if (hasProperty(existingDirectories, directoryPath)) {
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return true;
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}
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if (sys.directoryExists(directoryPath)) {
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existingDirectories[directoryPath] = true;
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return true;
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}
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return false;
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}
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function ensureDirectoriesExist(directoryPath: string) {
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if (directoryPath.length > getRootLength(directoryPath) && !directoryExists(directoryPath)) {
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var parentDirectory = getDirectoryPath(directoryPath);
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ensureDirectoriesExist(parentDirectory);
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sys.createDirectory(directoryPath);
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}
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}
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try {
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ensureDirectoriesExist(getDirectoryPath(normalizePath(fileName)));
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sys.writeFile(fileName, data, writeByteOrderMark);
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}
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catch (e) {
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if (onError) onError(e.message);
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}
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}
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return {
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getSourceFile,
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getDefaultLibFilename: options => combinePaths(getDirectoryPath(normalizePath(sys.getExecutingFilePath())), options.target === ScriptTarget.ES6 ? "lib.es6.d.ts" : "lib.d.ts"),
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writeFile,
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getCurrentDirectory: () => currentDirectory || (currentDirectory = sys.getCurrentDirectory()),
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useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
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getCanonicalFileName,
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getNewLine: () => sys.newLine
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};
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}
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export function executeCommandLine(args: string[]): void {
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var commandLine = parseCommandLine(args);
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var compilerOptions = commandLine.options;
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@ -1339,6 +1339,7 @@ declare module "typescript" {
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declare module "typescript" {
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function getNodeConstructor(kind: SyntaxKind): new () => Node;
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function forEachChild<T>(node: Node, cbNode: (node: Node) => T, cbNodes?: (nodes: Node[]) => T): T;
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function createCompilerHost(options: CompilerOptions): CompilerHost;
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function createSourceFile(filename: string, sourceText: string, languageVersion: ScriptTarget, version: string, isOpen?: boolean): SourceFile;
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function createProgram(rootNames: string[], options: CompilerOptions, host: CompilerHost): Program;
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}
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@ -4259,6 +4259,12 @@ declare module "typescript" {
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>T : T
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>T : T
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function createCompilerHost(options: CompilerOptions): CompilerHost;
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>createCompilerHost : (options: CompilerOptions) => CompilerHost
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>options : CompilerOptions
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>CompilerOptions : CompilerOptions
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>CompilerHost : CompilerHost
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function createSourceFile(filename: string, sourceText: string, languageVersion: ScriptTarget, version: string, isOpen?: boolean): SourceFile;
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>createSourceFile : (filename: string, sourceText: string, languageVersion: ScriptTarget, version: string, isOpen?: boolean) => SourceFile
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>filename : string
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@ -1337,6 +1337,7 @@ declare module ts {
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declare module ts {
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function getNodeConstructor(kind: SyntaxKind): new () => Node;
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function forEachChild<T>(node: Node, cbNode: (node: Node) => T, cbNodes?: (nodes: Node[]) => T): T;
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function createCompilerHost(options: CompilerOptions): CompilerHost;
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function createSourceFile(filename: string, sourceText: string, languageVersion: ScriptTarget, version: string, isOpen?: boolean): SourceFile;
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function createProgram(rootNames: string[], options: CompilerOptions, host: CompilerHost): Program;
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}
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@ -4262,6 +4262,12 @@ declare module ts {
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>T : T
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>T : T
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function createCompilerHost(options: CompilerOptions): CompilerHost;
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>createCompilerHost : (options: CompilerOptions) => CompilerHost
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>options : CompilerOptions
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>CompilerOptions : CompilerOptions
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>CompilerHost : CompilerHost
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function createSourceFile(filename: string, sourceText: string, languageVersion: ScriptTarget, version: string, isOpen?: boolean): SourceFile;
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>createSourceFile : (filename: string, sourceText: string, languageVersion: ScriptTarget, version: string, isOpen?: boolean) => SourceFile
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>filename : string
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