Method findSourceFile

src/utils/source-path-mapper.util.ts:47–65

* Find the source file corresponding to a dist declaration file

(distFilePath: string)

     * Find the source file corresponding to a dist declaration file
     */
    private findSourceFile(distFilePath: string): string | null {
        // Get the relative path from dist root
        const relativePath = path.relative(this.distPath, distFilePath);
        
        // Remove .d.ts extension, leaving .ts
        const withoutDTs = relativePath.replace(/\.d\.ts$/, '.ts');
        
        // Try common patterns
        const patterns = this.generateSourcePatterns(withoutDTs);
        
        for (const pattern of patterns) {
            const fullPath = path.join(this.sourceRoot, pattern);
            if (fs.existsSync(fullPath)) {
                return fullPath;
            }
        }
        
        return null;
    }

    /**
     * Generate possible source file path patterns