agentsqripts/lib/performance/cross-file/analyzers/analyzeFunctionComplexity.js

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

/**
 * @file Analyze individual function complexity
 * @description Single responsibility: Analyze complexity of a single function node
 */

/**
 * Analyze individual function complexity
 */
function analyzeFunctionComplexity(node, lines, filePath) {
  const startLine = node.loc ? node.loc.start.line : 1;
  const endLine = node.loc ? node.loc.end.line : lines.length;
  const funcContent = lines.slice(startLine - 1, endLine).join('\n');
  
  // Count nested loops within function
  const loopCount = (funcContent.match(/for\s*\(|\.forEach\s*\(|\.map\s*\(|while\s*\(/g) || []).length;
  const hasNestedLoops = /for.*{[^}]*for|forEach.*{[^}]*forEach/.test(funcContent);
  
  return {
    name: node.id ? node.id.name : 'anonymous',
    startLine,
    endLine,
    complexity: hasNestedLoops ? 'O(n²)' : loopCount > 0 ? 'O(n)' : 'O(1)',
    loopCount,
    hasNestedLoops,
    content: funcContent
  };
}

module.exports = analyzeFunctionComplexity;