import { NodeType, NodePath, Node, Debugger } from '../types';
import * as t from 'ast-types';
import { Backend } from '../backend/Backend';
export declare type RootCompileOptions = {
    where?: {
        [captureName: string]: (path: NodePath) => boolean;
    };
    debug?: Debugger;
    backend: Backend;
};
export declare type CompileOptions = {
    where?: {
        [captureName: string]: (path: NodePath) => boolean;
    };
    debug: Debugger;
    backend: Backend;
};
export declare type Captures = Record<string, NodePath>;
export declare type ArrayCaptures = Record<string, NodePath[]>;
export declare type StringCaptures = Record<string, string>;
export declare type MatchResult = {
    captures?: Captures;
    arrayCaptures?: ArrayCaptures;
    stringCaptures?: StringCaptures;
} | null;
export declare function mergeCaptures(...results: MatchResult[]): MatchResult;
export declare type PredicateMatcher = {
    match: (path: NodePath, matchSoFar: MatchResult) => boolean;
    nodeType?: keyof typeof t.namedTypes | (keyof typeof t.namedTypes)[];
};
export interface CompiledMatcher {
    pattern: NodePath<Node, Node> | NodePath<Node, Node>[];
    optional?: true;
    placeholder?: string;
    arrayPlaceholder?: string;
    restPlaceholder?: string;
    flag?: '$Ordered' | '$Unordered';
    match: (path: NodePath, matchSoFar: MatchResult) => MatchResult;
    nodeType?: NodeType | NodeType[];
}
export declare function convertPredicateMatcher(pattern: NodePath, matcher: PredicateMatcher, { debug }: CompileOptions): CompiledMatcher;
export default function compileMatcher(path: NodePath, rootCompileOptions: RootCompileOptions): CompiledMatcher;