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Moved createCompilerHost into parser.ts

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This commit is contained in:
Daniel Rosenwasser
2014-12-10 17:13:39 -08:00
parent 7fb92f8af0
commit 905d978883
6 changed files with 85 additions and 69 deletions
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71
src/compiler/parser.ts
View File

@@ -268,6 +268,77 @@ module ts {
}
}
// TODO (drosen, mhegazy): Move to a more appropriate file.
export function createCompilerHost(options: CompilerOptions): CompilerHost {
var currentDirectory: string;
var existingDirectories: Map<boolean> = {};
function getCanonicalFileName(fileName: string): string {
// if underlying system can distinguish between two files whose names differs only in cases then file name already in canonical form.
// otherwise use toLowerCase as a canonical form.
return sys.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();
}
// returned by CScript sys environment
var unsupportedFileEncodingErrorCode = -2147024809;
function getSourceFile(filename: string, languageVersion: ScriptTarget, onError?: (message: string) => void): SourceFile {
try {
var text = sys.readFile(filename, options.charset);
}
catch (e) {
if (onError) {
onError(e.number === unsupportedFileEncodingErrorCode ?
createCompilerDiagnostic(Diagnostics.Unsupported_file_encoding).messageText :
e.message);
}
text = "";
}
return text !== undefined ? createSourceFile(filename, text, languageVersion, /*version:*/ "0") : undefined;
}
function writeFile(fileName: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void) {
function directoryExists(directoryPath: string): boolean {
if (hasProperty(existingDirectories, directoryPath)) {
return true;
}
if (sys.directoryExists(directoryPath)) {
existingDirectories[directoryPath] = true;
return true;
}
return false;
}
function ensureDirectoriesExist(directoryPath: string) {
if (directoryPath.length > getRootLength(directoryPath) && !directoryExists(directoryPath)) {
var parentDirectory = getDirectoryPath(directoryPath);
ensureDirectoriesExist(parentDirectory);
sys.createDirectory(directoryPath);
}
}
try {
ensureDirectoriesExist(getDirectoryPath(normalizePath(fileName)));
sys.writeFile(fileName, data, writeByteOrderMark);
}
catch (e) {
if (onError) onError(e.message);
}
}
return {
getSourceFile,
getDefaultLibFilename: options => combinePaths(getDirectoryPath(normalizePath(sys.getExecutingFilePath())), options.target === ScriptTarget.ES6 ? "lib.es6.d.ts" : "lib.d.ts"),
writeFile,
getCurrentDirectory: () => currentDirectory || (currentDirectory = sys.getCurrentDirectory()),
useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
getCanonicalFileName,
getNewLine: () => sys.newLine
};
}
const enum ParsingContext {
SourceElements, // Elements in source file
ModuleElements, // Elements in module declaration

69
src/compiler/tsc.ts
View File

@@ -133,75 +133,6 @@ module ts {
reportStatisticalValue(name, (time / 1000).toFixed(2) + "s");
}
function createCompilerHost(options: CompilerOptions): CompilerHost {
var currentDirectory: string;
var existingDirectories: Map<boolean> = {};
function getCanonicalFileName(fileName: string): string {
// if underlying system can distinguish between two files whose names differs only in cases then file name already in canonical form.
// otherwise use toLowerCase as a canonical form.
return sys.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();
}
// returned by CScript sys environment
var unsupportedFileEncodingErrorCode = -2147024809;
function getSourceFile(filename: string, languageVersion: ScriptTarget, onError?: (message: string) => void): SourceFile {
try {
var text = sys.readFile(filename, options.charset);
}
catch (e) {
if (onError) {
onError(e.number === unsupportedFileEncodingErrorCode ?
getDiagnosticText(Diagnostics.Unsupported_file_encoding) :
e.message);
}
text = "";
}
return text !== undefined ? createSourceFile(filename, text, languageVersion, /*version:*/ "0") : undefined;
}
function writeFile(fileName: string, data: string, writeByteOrderMark: boolean, onError?: (message: string) => void) {
function directoryExists(directoryPath: string): boolean {
if (hasProperty(existingDirectories, directoryPath)) {
return true;
}
if (sys.directoryExists(directoryPath)) {
existingDirectories[directoryPath] = true;
return true;
}
return false;
}
function ensureDirectoriesExist(directoryPath: string) {
if (directoryPath.length > getRootLength(directoryPath) && !directoryExists(directoryPath)) {
var parentDirectory = getDirectoryPath(directoryPath);
ensureDirectoriesExist(parentDirectory);
sys.createDirectory(directoryPath);
}
}
try {
ensureDirectoriesExist(getDirectoryPath(normalizePath(fileName)));
sys.writeFile(fileName, data, writeByteOrderMark);
}
catch (e) {
if (onError) onError(e.message);
}
}
return {
getSourceFile,
getDefaultLibFilename: options => combinePaths(getDirectoryPath(normalizePath(sys.getExecutingFilePath())), options.target === ScriptTarget.ES6 ? "lib.es6.d.ts" : "lib.d.ts"),
writeFile,
getCurrentDirectory: () => currentDirectory || (currentDirectory = sys.getCurrentDirectory()),
useCaseSensitiveFileNames: () => sys.useCaseSensitiveFileNames,
getCanonicalFileName,
getNewLine: () => sys.newLine
};
}
export function executeCommandLine(args: string[]): void {
var commandLine = parseCommandLine(args);
var compilerOptions = commandLine.options;