/// <reference types="node" />
import type { Plugin, Metafile, OnResolveArgs, OnLoadArgs, OnResolveResult, OnLoadResult, BuildOptions } from 'esbuild';
import { ISpeedyBundler } from './bundler';
import { WebpackStats } from './webpack-stats';
interface SourceMap {
    mappings: string;
    names: string[];
    sources: (string | null)[];
    version: number;
    sourcesContent?: (string | null)[];
}
export declare type ExtraContext = Record<string, any>;
/**
 * Only merge additional fields from U to T.
 */
export declare type SafeMerge<T, U> = T & {
    [K in keyof U as Exclude<K, keyof T>]: U[K];
};
export interface SpeedyPlugin<T extends ExtraContext = ExtraContext> {
    name: string;
    apply(compiler: SafeMerge<ISpeedyBundler, T>): void;
}
export declare type EsbuildPlugin = Plugin;
export { Metafile };
export declare type ResolveArgs = Pick<OnResolveArgs, 'importer' | 'path' | 'resolveDir'>;
export declare type ResolveResult = Pick<OnResolveResult, 'path' | 'external'>;
export declare type LoadArgs = Pick<OnLoadArgs, 'path'> & Pick<OnResolveResult, 'pluginData'>;
export declare type LoadResult = Pick<OnLoadResult, 'contents' | 'loader' | 'resolveDir'> & {
    map?: SourceMap;
};
export declare type AssetChunk = {
    type: 'asset';
    contents: string | Buffer;
    fileName: string;
    originalFileName?: string;
    entryPoint?: string;
};
export declare type JsChunk = {
    type: 'chunk';
    contents: string;
    fileName: string;
    originalFileName?: string;
    map?: SourceMap;
    entryPoint?: string;
    modules?: Record<string, any>;
    isEntry: boolean;
};
export declare type Chunk = AssetChunk | JsChunk;
export declare type Source = {
    code: string;
    map?: SourceMap;
    path: string;
    loader?: string;
    /**
     * Whether enable cache.
     * @default true
     */
    cache?: boolean;
};
export type { SourceMap };
export { ISpeedyBundler };
export declare const enum ChunkType {
    chunk = "chunk",
    asset = "asset"
}
export declare type SpeedyManifest = {
    metafile: Metafile;
    config: BuildOptions;
    stats: WebpackStats;
};