code: function processFunction(funcNode) {
              const node = isEmbedded(funcNode) ? funcNode.parent : funcNode;
  
              if (!IIFEs && isIIFE(node)) {
                  return;
              }
              let lineCount = 0;
  
              for (let i = node.loc.start.line - 1; i < node.loc.end.line; ++i) {
                  const line = lines[i];
  
                  if (skipComments) {
                      if (commentLineNumbers.has(i + 1) && isFullLineComment(line, i + 1, commentLineNumbers.get(i + 1))) {
                          continue;
                      }
                  }
  
                  if (skipBlankLines) {
                      if (line.match(/^\s*$/u)) {
                          continue;
                      }
                  }
  
                  lineCount++;
              }
  
              if (lineCount > maxLines) {
                  const name = astUtils.getFunctionNameWithKind(funcNode);
  
                  context.report({
                      node,
                      messageId: "exceed",
                      data: { name, lineCount, maxLines }
                  });
              }
          }
docs: Count the lines in the function
  @param {ASTNode} funcNode Function AST node
  @returns {void}
  @private