class RubbyCop::Cop::Lint::ShadowingOuterLocalVariable
This cop looks for use of the same name as outer local variables for block arguments or block local variables. This is a mimic of the warning “shadowing outer local variable - foo” from `ruby -cw`.
@example
# bad def some_method foo = 1 2.times do |foo| # shadowing outer `foo` do_something(foo) end end
@example
# good def some_method foo = 1 2.times do |bar| do_something(bar) end end
Constants
- MSG
Public Instance Methods
before_declaring_variable(variable, variable_table)
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# File lib/rubbycop/cop/lint/shadowing_outer_local_variable.rb, line 41 def before_declaring_variable(variable, variable_table) return if variable.should_be_unused? outer_local_variable = variable_table.find_variable(variable.name) return unless outer_local_variable message = format(MSG, variable.name) add_offense(variable.declaration_node, :expression, message) end
join_force?(force_class)
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# File lib/rubbycop/cop/lint/shadowing_outer_local_variable.rb, line 37 def join_force?(force_class) force_class == VariableForce end