/**
 * Coverage Mapper
 *
 * Maps test files to source files and calculates coverage
 */
import type { TestFile, TestMapping, CoverageMetrics, UntestedCode } from "../../types/test-coverage.js";
export declare class CoverageMapper {
    private projectRoot;
    private readonly SOURCE_EXTENSIONS;
    private readonly EXCLUDE_DIRS;
    private readonly EXCLUDE_FILES;
    constructor(projectRoot: string);
    /**
     * Find all source files in the project
     */
    findSourceFiles(): Promise<string[]>;
    /**
     * Walk directory to find source files
     */
    private walkDirectory;
    /**
     * Check if a file is a source file
     */
    private isSourceFile;
    /**
     * Create mappings between source files and test files
     */
    createMappings(testFiles: TestFile[]): Promise<TestMapping[]>;
    /**
     * Find test files that cover a source file
     */
    private findTestsForSource;
    /**
     * Extract exported function names from a source file
     */
    extractFunctions(filePath: string): Promise<string[]>;
    /**
     * Find which functions are likely tested
     */
    private findTestedFunctions;
    /**
     * Calculate coverage metrics
     */
    calculateMetrics(testFiles: TestFile[], mappings: TestMapping[]): CoverageMetrics;
    /**
     * Find untested code
     */
    findUntestedCode(mappings: TestMapping[]): Promise<UntestedCode[]>;
    /**
     * Calculate priority for untested code
     */
    private calculatePriority;
    /**
     * Suggest test file path for a source file
     */
    private suggestTestPath;
    /**
     * Find the line number of a function in a file
     */
    private findFunctionLine;
}
//# sourceMappingURL=coverage-mapper.d.ts.map