Function tryAddingExtensions

test/fixtures/snapshot/typescript.js:43553–43618

Try to return an existing file that adds one of the `extensions` to `candidate`.

(candidate, extensions, originalExtension, onlyRecordFailures, state)

    }
    /** Try to return an existing file that adds one of the `extensions` to `candidate`. */
    function tryAddingExtensions(candidate, extensions, originalExtension, onlyRecordFailures, state) {
        if (!onlyRecordFailures) {
            // check if containing folder exists - if it doesn't then just record failures for all supported extensions without disk probing
            var directory = ts.getDirectoryPath(candidate);
            if (directory) {
                onlyRecordFailures = !ts.directoryProbablyExists(directory, state.host);
            }
        }
        switch (extensions) {
            case Extensions.DtsOnly:
                switch (originalExtension) {
                    case ".mjs" /* Extension.Mjs */:
                    case ".mts" /* Extension.Mts */:
                    case ".d.mts" /* Extension.Dmts */:
                        return tryExtension(".d.mts" /* Extension.Dmts */);
                    case ".cjs" /* Extension.Cjs */:
                    case ".cts" /* Extension.Cts */:
                    case ".d.cts" /* Extension.Dcts */:
                        return tryExtension(".d.cts" /* Extension.Dcts */);
                    case ".json" /* Extension.Json */:
                        candidate += ".json" /* Extension.Json */;
                        return tryExtension(".d.ts" /* Extension.Dts */);
                    default: return tryExtension(".d.ts" /* Extension.Dts */);
                }
            case Extensions.TypeScript:
            case Extensions.TsOnly:
                var useDts = extensions === Extensions.TypeScript;
                switch (originalExtension) {
                    case ".mjs" /* Extension.Mjs */:
                    case ".mts" /* Extension.Mts */:
                    case ".d.mts" /* Extension.Dmts */:
                        return tryExtension(".mts" /* Extension.Mts */) || (useDts ? tryExtension(".d.mts" /* Extension.Dmts */) : undefined);
                    case ".cjs" /* Extension.Cjs */:
                    case ".cts" /* Extension.Cts */:
                    case ".d.cts" /* Extension.Dcts */:
                        return tryExtension(".cts" /* Extension.Cts */) || (useDts ? tryExtension(".d.cts" /* Extension.Dcts */) : undefined);
                    case ".json" /* Extension.Json */:
                        candidate += ".json" /* Extension.Json */;
                        return useDts ? tryExtension(".d.ts" /* Extension.Dts */) : undefined;
                    default:
                        return tryExtension(".ts" /* Extension.Ts */) || tryExtension(".tsx" /* Extension.Tsx */) || (useDts ? tryExtension(".d.ts" /* Extension.Dts */) : undefined);
                }
            case Extensions.JavaScript:
                switch (originalExtension) {
                    case ".mjs" /* Extension.Mjs */:
                    case ".mts" /* Extension.Mts */:
                    case ".d.mts" /* Extension.Dmts */:
                        return tryExtension(".mjs" /* Extension.Mjs */);
                    case ".cjs" /* Extension.Cjs */:
                    case ".cts" /* Extension.Cts */:
                    case ".d.cts" /* Extension.Dcts */:
                        return tryExtension(".cjs" /* Extension.Cjs */);
                    case ".json" /* Extension.Json */:
                        return tryExtension(".json" /* Extension.Json */);
                    default:
                        return tryExtension(".js" /* Extension.Js */) || tryExtension(".jsx" /* Extension.Jsx */);
                }
            case Extensions.TSConfig: