import type { FunctionNode } from './call-graph.js';
/**
 * Three-way index over FunctionNodes enabling O(1) lookup by:
 *  - simple name ("process")
 *  - qualified name ("ClassName.methodName")
 *  - full ID ("filepath::ClassName.methodName")
 *
 * Replaces the flat Map<string, FunctionNode[]> used in Pass 2 of build(),
 * enabling className-aware resolution when a receiver type is known.
 */
export declare class FunctionRegistryTrie {
    private byName;
    private byQualified;
    private byId;
    insert(node: FunctionNode): void;
    findBySimpleName(name: string): FunctionNode[];
    findByQualifiedName(className: string, methodName: string): FunctionNode[];
    findById(id: string): FunctionNode | undefined;
    allNodes(): FunctionNode[];
}
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