Class: RuboCop::Cop::Lint::LiteralAsCondition
- Inherits:
-
Base
- Object
- Base
- RuboCop::Cop::Lint::LiteralAsCondition
show all
- Includes:
- RangeHelp
- Defined in:
- lib/rubocop/cop/lint/literal_as_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.
Constant Summary
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- MSG =
'Literal `%<literal>s` appeared as a condition.'
Constants inherited
from Base
Base::RESTRICT_ON_SEND
Instance Attribute Summary
Attributes inherited from Base
#config, #processed_source
Instance Method Summary
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Methods inherited from Base
#add_global_offense, #add_offense, autocorrect_incompatible_with, badge, #callbacks_needed, callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, #cop_name, cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, joining_forces, lint?, match?, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #ready, #relevant_file?, support_autocorrect?, support_multiple_source?, #target_rails_version, #target_ruby_version
#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #correctable?, #disable_uncorrectable?, #safe_autocorrect?
#ignore_node, #ignored_node?, #part_of_ignored_node?
Methods included from Util
silence_warnings
Instance Method Details
#message(node) ⇒ Object
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# File 'lib/rubocop/cop/lint/literal_as_condition.rb', line 76
def message(node)
format(MSG, literal: node.source)
end
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#on_case(case_node) ⇒ Object
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# File 'lib/rubocop/cop/lint/literal_as_condition.rb', line 55
def on_case(case_node)
if case_node.condition
check_case(case_node)
else
case_node.each_when do |when_node|
next unless when_node.conditions.all?(&:literal?)
range = when_conditions_range(when_node)
message = message(range)
add_offense(range, message: message)
end
end
end
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#on_if(node) ⇒ Object
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# File 'lib/rubocop/cop/lint/literal_as_condition.rb', line 37
def on_if(node)
check_for_literal(node)
end
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#on_send(node) ⇒ Object
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# File 'lib/rubocop/cop/lint/literal_as_condition.rb', line 70
def on_send(node)
return unless node.negation_method?
check_for_literal(node)
end
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#on_until(node) ⇒ Object
Also known as:
on_until_post
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# File 'lib/rubocop/cop/lint/literal_as_condition.rb', line 48
def on_until(node)
return if condition(node).false_type?
check_for_literal(node)
end
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#on_while(node) ⇒ Object
Also known as:
on_while_post
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# File 'lib/rubocop/cop/lint/literal_as_condition.rb', line 41
def on_while(node)
return if condition(node).true_type?
check_for_literal(node)
end
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