class RuboCop::Cop::Lint::AmbiguousBlockAssociation
This cop checks for ambiguous block association with method when param passed without parentheses.
@example
# bad some_method a { |val| puts val }
@example
# good # With parentheses, there's no ambiguity. some_method(a) { |val| puts val } # good # Operator methods require no disambiguation foo == bar { |b| b.baz } # good # Lambda arguments require no disambiguation foo = ->(bar) { bar.baz }
Constants
- MSG
Public Instance Methods
on_send(node)
click to toggle source
# File lib/rubocop/cop/lint/ambiguous_block_association.rb, line 32 def on_send(node) return if !node.arguments? || node.parenthesized? || node.last_argument.lambda? || allowed_method?(node) return unless ambiguous_block_association?(node) add_offense(node) end
Also aliased as: on_csend
Private Instance Methods
allowed_method?(node)
click to toggle source
# File lib/rubocop/cop/lint/ambiguous_block_association.rb, line 49 def allowed_method?(node) node.assignment? || node.operator_method? || node.method?(:[]) end
ambiguous_block_association?(send_node)
click to toggle source
# File lib/rubocop/cop/lint/ambiguous_block_association.rb, line 44 def ambiguous_block_association?(send_node) send_node.last_argument.block_type? && !send_node.last_argument.send_node.arguments? end
message(send_node)
click to toggle source
# File lib/rubocop/cop/lint/ambiguous_block_association.rb, line 53 def message(send_node) block_param = send_node.last_argument format(MSG, param: block_param.source, method: block_param.send_node.source) end