import type { SemanticProgramIndex } from './types.js';
export type BuildSpiOptions = {
    root: string;
    madarVersion: string;
    extractorVersion?: string;
    /** Restrict source discovery to these absolute paths. */
    includedFiles?: ReadonlySet<string>;
    now?: () => Date;
};
export type BuildSpiFileLayerOptions = BuildSpiOptions;
/** The source extensions the SPI builder can parse and project. */
export declare const SPI_SOURCE_EXTENSIONS: ReadonlySet<string>;
export declare function isSpiSupportedSourceFile(filePath: string): boolean;
/**
 * Resolve the explicit source set passed by generation. The detector already
 * applies the workspace's safe symlink policy; this preserves those logical
 * paths for SPI instead of re-walking the tree and silently dropping them.
 */
export declare function collectExplicitSpiFiles(rootPath: string, includedFiles: ReadonlySet<string>): string[];
export declare function buildSpi(opts: BuildSpiOptions): SemanticProgramIndex;
export declare const buildSpiFileLayer: typeof buildSpi;
export declare function findNearestProjectConfigPath(startPath: string): string | null;