class RuboCop::Cop::Style::LambdaCall
Checks for use of the lambda.(args) syntax.
@example EnforcedStyle: call (default)
# bad lambda.(x, y) # good lambda.call(x, y)
@example EnforcedStyle: braces
# bad lambda.call(x, y) # good lambda.(x, y)
Constants
- MSG
- RESTRICT_ON_SEND
Public Instance Methods
on_send(node)
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# File lib/rubocop/cop/style/lambda_call.rb, line 29 def on_send(node) return unless node.receiver if offense?(node) prefer = prefer(node) current = node.source add_offense(node, message: format(MSG, prefer: prefer, current: current)) do |corrector| next if part_of_ignored_node?(node) opposite_style_detected corrector.replace(node, prefer) ignore_node(node) end else correct_style_detected end end
Private Instance Methods
explicit_style?()
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# File lib/rubocop/cop/style/lambda_call.rb, line 67 def explicit_style? style == :call end
implicit_style?()
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# File lib/rubocop/cop/style/lambda_call.rb, line 63 def implicit_style? style == :braces end
offense?(node)
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# File lib/rubocop/cop/style/lambda_call.rb, line 51 def offense?(node) (explicit_style? && node.implicit_call?) || (implicit_style? && !node.implicit_call?) end
prefer(node)
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# File lib/rubocop/cop/style/lambda_call.rb, line 55 def prefer(node) receiver = node.receiver.source arguments = node.arguments.map(&:source).join(', ') method = explicit_style? ? "call(#{arguments})" : "(#{arguments})" "#{receiver}.#{method}" end