Function tryGetJSExtensionForFile

test/fixtures/snapshot/typescript.js:122649–122672

(fileName, options)

            return (_a = tryGetJSExtensionForFile(fileName, options)) !== null && _a !== void 0 ? _a : ts.Debug.fail("Extension ".concat(ts.extensionFromPath(fileName), " is unsupported:: FileName:: ").concat(fileName));
        }
        function tryGetJSExtensionForFile(fileName, options) {
            var ext = ts.tryGetExtensionFromPath(fileName);
            switch (ext) {
                case ".ts" /* Extension.Ts */:
                case ".d.ts" /* Extension.Dts */:
                    return ".js" /* Extension.Js */;
                case ".tsx" /* Extension.Tsx */:
                    return options.jsx === 1 /* JsxEmit.Preserve */ ? ".jsx" /* Extension.Jsx */ : ".js" /* Extension.Js */;
                case ".js" /* Extension.Js */:
                case ".jsx" /* Extension.Jsx */:
                case ".json" /* Extension.Json */:
                    return ext;
                case ".d.mts" /* Extension.Dmts */:
                case ".mts" /* Extension.Mts */:
                case ".mjs" /* Extension.Mjs */:
                    return ".mjs" /* Extension.Mjs */;
                case ".d.cts" /* Extension.Dcts */:
                case ".cts" /* Extension.Cts */:
                case ".cjs" /* Extension.Cjs */:
                    return ".cjs" /* Extension.Cjs */;
                default:
                    return undefined;
            }
        }
        moduleSpecifiers_1.tryGetJSExtensionForFile = tryGetJSExtensionForFile;
        function getRelativePathIfInDirectory(path, directoryPath, getCanonicalFileName) {
            var relativePath = ts.getRelativePathToDirectoryOrUrl(directoryPath, path, directoryPath, getCanonicalFileName, /*isAbsolutePathAnUrl*/ false);