Function createWatchHost

test/fixtures/snapshot/typescript.js:123083–123093

(system, reportWatchStatus)

    ts.noopFileWatcher = { close: ts.noop };
    ts.returnNoopFileWatcher = function () { return ts.noopFileWatcher; };
    function createWatchHost(system, reportWatchStatus) {
        if (system === void 0) { system = ts.sys; }
        var onWatchStatusChange = reportWatchStatus || createWatchStatusReporter(system);
        return {
            onWatchStatusChange: onWatchStatusChange,
            watchFile: ts.maybeBind(system, system.watchFile) || ts.returnNoopFileWatcher,
            watchDirectory: ts.maybeBind(system, system.watchDirectory) || ts.returnNoopFileWatcher,
            setTimeout: ts.maybeBind(system, system.setTimeout) || ts.noop,
            clearTimeout: ts.maybeBind(system, system.clearTimeout) || ts.noop
        };
    }
    ts.createWatchHost = createWatchHost;
    ts.WatchType = {
        ConfigFile: "Config file",