Class: RuboCop::Cop::Lint::AssignmentInCondition
- Includes:
- SafeAssignment
- Defined in:
- lib/rubocop/cop/lint/assignment_in_condition.rb
Overview
This cop checks for assignments in the conditions of if/while/until.
Constant Summary collapse
- MSG_WITH_SAFE_ASSIGNMENT_ALLOWED =
'Use `==` if you meant to do a comparison or wrap the expression ' \ 'in parentheses to indicate you meant to assign in a ' \ 'condition.'
- MSG_WITHOUT_SAFE_ASSIGNMENT_ALLOWED =
'Use `==` if you meant to do a comparison or move the assignment ' \ 'up out of the condition.'
- ASGN_TYPES =
[:begin, *AST::Node::EQUALS_ASSIGNMENTS, :send].freeze
Constants included from Util
Instance Attribute Summary
Attributes inherited from Cop
#config, #corrections, #offenses, #processed_source
Instance Method Summary collapse
- #on_if(node) ⇒ Object (also: #on_while, #on_until)
Methods included from NodePattern::Macros
#def_node_matcher, #def_node_search, #node_search, #node_search_all, #node_search_body, #node_search_first
Methods inherited from Cop
#add_offense, all, autocorrect_incompatible_with, badge, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, #correct, department, #duplicate_location?, #excluded_file?, #find_location, #highlights, inherited, #initialize, #join_force?, lint?, match?, #messages, non_rails, #parse, qualified_cop_name, #relevant_file?, #target_rails_version, #target_ruby_version
Methods included from AST::Sexp
Methods included from AutocorrectLogic
#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #support_autocorrect?
Methods included from IgnoredNode
#ignore_node, #ignored_node?, #part_of_ignored_node?
Methods included from Util
begins_its_line?, comment_line?, double_quotes_required?, escape_string, first_part_of_call_chain, interpret_string_escapes, line_range, needs_escaping?, on_node, parentheses?, same_line?, to_string_literal, to_supported_styles, tokens, trim_string_interporation_escape_character
Methods included from PathUtil
absolute?, chdir, hidden_dir?, hidden_file_in_not_hidden_dir?, match_path?, pwd, relative_path, reset_pwd, smart_path
Constructor Details
This class inherits a constructor from RuboCop::Cop::Cop
Instance Method Details
#on_if(node) ⇒ Object Also known as: on_while, on_until
36 37 38 39 40 41 42 43 44 45 |
# File 'lib/rubocop/cop/lint/assignment_in_condition.rb', line 36 def on_if(node) return if node.condition.block_type? traverse_node(node.condition, ASGN_TYPES) do |asgn_node| next :skip_children if skip_children?(asgn_node) next if allowed_construct?(asgn_node) add_offense(asgn_node, location: :operator) end end |