Class: Rubocop::Cop::Lint::LiteralInCondition

Inherits:
Cop
  • Object
show all
Defined in:
lib/rubocop/cop/lint/literal_in_condition.rb

Overview

This cop checks for literals used as the conditions or as operands in and/or expressions serving as the conditions of if/while/until.

Examples:


if 20
  do_something
end

if some_var && true
  do_something
end

Constant Summary collapse

MSG = 
'Literal %s appeared in a condition.'
LITERALS = 
[:str, :dstr, :int, :float, :array,
:hash, :regexp, :nil, :true, :false]

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, #offences, #processed_source

Instance Method Summary collapse

Methods inherited from Cop

#add_offence, all, #autocorrect?, #config_to_allow_offences, #config_to_allow_offences=, #cop_config, cop_name, #cop_name, cop_type, #debug?, #display_cop_names?, #exclude_file?, #include_file?, inherited, #initialize, lint?, non_rails, rails?, #relevant_file?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

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

Methods included from PathUtil

match_path?, relative_path

Constructor Details

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

Instance Method Details

#message(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/literal_in_condition.rb', line 46

def message(node)
  MSG.format(node.loc.expression.source)
end

#on_if(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/literal_in_condition.rb', line 26

def on_if(node)
  check_for_literal(node)
end

#on_until(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/literal_in_condition.rb', line 38

def on_until(node)
  check_for_literal(node)
end

#on_until_post(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/literal_in_condition.rb', line 42

def on_until_post(node)
  check_for_literal(node)
end

#on_while(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/literal_in_condition.rb', line 30

def on_while(node)
  check_for_literal(node)
end

#on_while_post(node) ⇒ Object 



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# File 'lib/rubocop/cop/lint/literal_in_condition.rb', line 34

def on_while_post(node)
  check_for_literal(node)
end