agentsqripts/lib/performance/ast/helpers/node/getNodeLine.js

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

/**
 * @file Get line number from AST node
 * @description Single responsibility: Extract line number from an AST node
 */

/**
 * Get the line number from an AST node
 * @param {Object} node - AST node
 * @returns {number} Line number or 0 if not found
 */
function getNodeLine(node) {
  if (!node) return 0;
  
  // Check for loc property (most common)
  if (node.loc && node.loc.start && typeof node.loc.start.line === 'number') {
    return node.loc.start.line;
  }
  
  // Check for line property directly
  if (typeof node.line === 'number') {
    return node.line;
  }
  
  // Check for start property
  if (typeof node.start === 'number') {
    // For acorn, we might need to calculate line from position
    // This is a fallback - ideally loc should be available
    return 1; // Default to line 1 if we only have position
  }
  
  return 0;
}

module.exports = getNodeLine;