@angular/cdk
Version:
Angular Material Component Development Kit
71 lines • 3.19 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.dev/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.FileSystemHost = void 0;
exports.createFileSystemCompilerHost = createFileSystemCompilerHost;
exports.createFormatDiagnosticHost = createFormatDiagnosticHost;
const ts = require("typescript");
/**
* Implementation of a TypeScript parse config host that relies fully on
* a given virtual file system.
*/
class FileSystemHost {
constructor(_fileSystem) {
this._fileSystem = _fileSystem;
this.useCaseSensitiveFileNames = ts.sys.useCaseSensitiveFileNames;
}
fileExists(path) {
return this._fileSystem.fileExists(this._fileSystem.resolve(path));
}
readFile(path) {
const content = this._fileSystem.read(this._fileSystem.resolve(path));
if (content === null) {
return undefined;
}
// Strip BOM as otherwise TSC methods (e.g. "getWidth") will return an offset which
// which breaks the CLI UpdateRecorder. https://github.com/angular/angular/pull/30719
return content.replace(/^\uFEFF/, '');
}
readDirectory(rootDir, extensions, excludes, includes, depth) {
if (ts.matchFiles === undefined) {
throw Error('Unable to read directory in virtual file system host. This means that ' +
'TypeScript changed its file matching internals.\n\nPlease consider downgrading your ' +
'TypeScript version, and report an issue in the Angular Components repository.');
}
return ts.matchFiles(rootDir, extensions, extensions, includes, this.useCaseSensitiveFileNames, '/', depth, p => this._getFileSystemEntries(p), p => this._fileSystem.resolve(p), p => this._fileSystem.directoryExists(this._fileSystem.resolve(p)));
}
_getFileSystemEntries(path) {
return this._fileSystem.readDirectory(this._fileSystem.resolve(path));
}
}
exports.FileSystemHost = FileSystemHost;
/**
* Creates a TypeScript compiler host that fully relies fully on the given
* virtual file system. i.e. no interactions with the working directory.
*/
function createFileSystemCompilerHost(options, fileSystem) {
const host = ts.createCompilerHost(options, true);
const virtualHost = new FileSystemHost(fileSystem);
host.readFile = virtualHost.readFile.bind(virtualHost);
host.readDirectory = virtualHost.readDirectory.bind(virtualHost);
host.fileExists = virtualHost.fileExists.bind(virtualHost);
host.directoryExists = dirPath => fileSystem.directoryExists(fileSystem.resolve(dirPath));
host.getCurrentDirectory = () => '/';
host.getCanonicalFileName = p => fileSystem.resolve(p);
return host;
}
/** Creates a format diagnostic host that works with the given file system. */
function createFormatDiagnosticHost(fileSystem) {
return {
getCanonicalFileName: p => fileSystem.resolve(p),
getCurrentDirectory: () => '/',
getNewLine: () => '\n',
};
}
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