@angular/cdk
Version:
Angular Material Component Development Kit
45 lines • 2.04 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.TsconfigParseError = void 0;
exports.parseTsconfigFile = parseTsconfigFile;
const ts = require("typescript");
const virtual_host_1 = require("./virtual-host");
const path_1 = require("path");
const diagnostics_1 = require("./diagnostics");
/** Code of the error raised by TypeScript when a tsconfig doesn't match any files. */
const NO_INPUTS_ERROR_CODE = 18003;
/** Class capturing a tsconfig parse error. */
class TsconfigParseError extends Error {
}
exports.TsconfigParseError = TsconfigParseError;
/**
* Attempts to parse the specified tsconfig file.
*
* @throws {TsconfigParseError} If the tsconfig could not be read or parsed.
*/
function parseTsconfigFile(tsconfigPath, fileSystem) {
if (!fileSystem.fileExists(tsconfigPath)) {
throw new TsconfigParseError(`Tsconfig cannot not be read: ${tsconfigPath}`);
}
const { config, error } = ts.readConfigFile(tsconfigPath, p => fileSystem.read(fileSystem.resolve(p)));
// If there is a config reading error, we never attempt to parse the config.
if (error) {
throw new TsconfigParseError((0, diagnostics_1.formatDiagnostics)([error], fileSystem));
}
const parsed = ts.parseJsonConfigFileContent(config, new virtual_host_1.FileSystemHost(fileSystem), (0, path_1.dirname)(tsconfigPath), {});
// Skip the "No inputs found..." error since we don't want to interrupt the migration if a
// tsconfig doesn't match a file. This will result in an empty `Program` which is still valid.
const errors = parsed.errors.filter(diag => diag.code !== NO_INPUTS_ERROR_CODE);
if (errors.length) {
throw new TsconfigParseError((0, diagnostics_1.formatDiagnostics)(errors, fileSystem));
}
return parsed;
}
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