import { PluginContext } from '../context';
import { PluginContextPipeline } from './pipeline';
/**
 * Interface which describes a plugin context processor.
 */
export interface PluginContextProcessor<PluginContextType extends PluginContext = PluginContext> {
    /**
     * Process given plugin context.
     *
     * @param {PluginContextType} pluginContext
     *   An object which represents a plugin context.
     *
     * @return {Promise<PluginContextType>}
     *   A promise to process plugin context.
     */
    process(pluginContext: PluginContextType, pipeline: PluginContextPipeline): Promise<PluginContextType>;
}
/**
 * Base implementation for a plugin context processor.
 */
export declare abstract class PluginContextProcessorBase<PluginContextType extends PluginContext> implements PluginContextProcessor<PluginContextType> {
    /**
     * Perform pre-processing on the plugin context.
     *
     * @param {PluginContextType} pluginContext
     *   An object which represents the plugin context.
     * @param {PluginContextPipeline} pipeline
     *   An object which represents the plugin context pipeline.
     *
     * @return {Promise<PluginContextType>}
     *   A promise to perform pre-processing on the plugin context.
     */
    protected onPreProcess(pluginContext: PluginContextType, pipeline: PluginContextPipeline): Promise<PluginContextType>;
    /**
     * Perform processing on the plugin context.
     *
     * @param {PluginContextType} pluginContext
     *   An object which represents the plugin context.
     * @param {PluginContextPipeline} pipeline
     *   An object which represents the plugin context pipeline.
     *
     * @return {Promise<PluginContextType>}
     *   A promise to perform processing on the plugin context.
     */
    protected onProcess(pluginContext: PluginContextType, pipeline: PluginContextPipeline): Promise<PluginContextType>;
    /**
     * Perform post-processing on the plugin context.
     *
     * @param {PluginContextType} pluginContext
     *   An object which represents the plugin context.
     * @param {PluginContextPipeline} pipeline
     *   An object which represents the plugin context pipeline.
     *
     * @return {Promise<PluginContextType>}
     *   A promise to perform post-processing on the plugin context.
     */
    protected onPostProcess(pluginContext: PluginContextType, pipeline: PluginContextPipeline): Promise<PluginContextType>;
    /**
     * {@inheritdoc}
     */
    process(pluginContext: PluginContextType, pipeline: PluginContextPipeline): Promise<PluginContextType>;
}