agentsqripts/lib/wet-code/ast/ast-block/normalizeForComparison.js

Comprehensive static code analysis toolkit for identifying technical debt, security vulnerabilities, performance issues, and code quality problems

/**
 * @file Normalize content for comparison
 * @description Single responsibility: Normalize code for semantic comparison by removing variable names and whitespace
 */

/**
 * Normalize content for comparison (remove variable names, whitespace, etc.)
 */
function normalizeForComparison(content, type) {
  let normalized = content;
  
  // Remove comments
  normalized = normalized.replace(/\/\*[\s\S]*?\*\//g, '');
  normalized = normalized.replace(/\/\/.*$/gm, '');
  
  // Normalize whitespace
  normalized = normalized.replace(/\s+/g, ' ').trim();
  
  // For semantic comparison, replace variable names with placeholders
  if (type === 'function' || type === 'method' || type === 'classMethod') {
    // Replace parameter names
    normalized = normalized.replace(/\(([^)]*)\)/g, (match, params) => {
      const paramList = params.split(',').map((p, i) => `param${i}`).join(',');
      return `(${paramList})`;
    });
    
    // Replace variable declarations
    normalized = normalized.replace(/\b(const|let|var)\s+(\w+)/g, '$1 VAR');
  }
  
  return normalized;
}

module.exports = normalizeForComparison;