Class: RuboCop::Cop::Rails::ScopeArgs

Inherits:

Cop

• Object
• Cop
• RuboCop::Cop::Rails::ScopeArgs

Defined in:

lib/rubocop/cop/rails/scope_args.rb

Overview

This cop checks for scope calls where it was passed a method (usually a scope) instead of a lambda/proc.

Examples:

# bad
scope :something, where(something: true)

# good
scope :something, -> { where(something: true) }

Constant Summary

MSG =

'Use `lambda`/`proc` instead of a plain method call.'

Constants included from Util

Util::ASGN_NODES, Util::EQUALS_ASGN_NODES, Util::OPERATOR_METHODS, Util::PROC_NEW_NODE, Util::SHORTHAND_ASGN_NODES

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary

• #on_send(node) ⇒ Object

Methods inherited from Cop

#add_offense, all, #autocorrect?, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, cop_name_with_namespace, cop_type, #debug?, #display_cop_names?, inherited, #initialize, #join_force?, lint?, #message, non_rails, qualified_cop_name, rails?, #relevant_file?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

begins_its_line?, block_length, command?, comment_line?, const_name, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, numeric_range_size, on_node, operator?, parentheses?, proc?, range_with_surrounding_space, source_range, strip_quotes, within_node?

Methods included from PathUtil

issue_deprecation_warning, match_path?, relative_path

Constructor Details

This class inherits a constructor from RuboCop::Cop::Cop

Instance Method Details

#on_send(node) ⇒ Object

# File 'lib/rubocop/cop/rails/scope_args.rb', line 19

def on_send(node)
  return unless command?(:scope, node)

  _receiver, _method_name, *args = *node

  return unless args.size == 2

  second_arg = args[1]

  add_offense(second_arg, :expression) if second_arg.type == :send
end