exports.isReference = function()

in lib/util.js [41:98]

• 45 lines of code
• 24 McCabe index (conditional complexity)

exports.isReference = function(path, name) {
  var node = path.value;

  if (!n.Identifier.check(node)) {
    return false;
  }

  if (name && node.name !== name) {
    return false;
  }

  var parent = path.parent.value;

  switch (parent.type) {
  case "VariableDeclarator":
    return path.name === "init";

  case "MemberExpression":
    return path.name === "object" || (
      parent.computed && path.name === "property"
    );

  case "FunctionExpression":
  case "FunctionDeclaration":
  case "ArrowFunctionExpression":
    if (path.name === "id") {
      return false;
    }

    if (path.parentPath.name === "params" &&
        parent.params === path.parentPath.value &&
        parent.params[path.name] === node) {
      return false;
    }

    return true;

  case "ClassDeclaration":
  case "ClassExpression":
    return path.name !== "id";

  case "CatchClause":
    return path.name !== "param";

  case "Property":
  case "MethodDefinition":
    return path.name !== "key";

  case "ImportSpecifier":
  case "ImportDefaultSpecifier":
  case "ImportNamespaceSpecifier":
  case "LabeledStatement":
    return false;

  default:
    return true;
  }
};