/*!
 * V4Fire Core
 * https://github.com/V4Fire/Core
 *
 * Released under the MIT license
 * https://github.com/V4Fire/Core/blob/master/LICENSE
 */
import type { PerfGroup } from '../../../core/perf';
import type { PerfTimer } from '../../../core/perf/timer/impl';
/**
 * A factory to create performance timers
 */
export interface PerfTimerFactory {
    /**
     * Returns an instance of the performance timer for a specific group
     * @param group - group name, that timer should belong to. It appears at the beginning of all time marks namespaces.
     */
    getTimer(group: PerfGroup): PerfTimer;
    /**
     * Returns an instance of the scoped performance timer for a specific group.
     * The scoped timer is a timer that measures timestamps from the moment of the first scope using.
     * This moment is called the time origin.
     *
     * @param group - group name, that timer should belong to. It appears at the beginning of all time marks namespaces.
     * @param scope - scope name, that defines the scope. It doesn't appear in any time mark namespaces.
     *
     * @example
     * ```js
     * // The 'handlers' scope is created at this moment
     * const timer = factory.getScopedTimer('manual', 'handlers');
     *
     * // <some code>
     *
     * // Uses the previous timer origin
     * const anotherTimer = factory.getScopedTimer('manual', 'handlers');
     * ```
     */
    getScopedTimer(group: PerfGroup, scope: string): PerfTimer;
}