Class: Rubocop::Cop::Lambda
- Defined in:
- lib/rubocop/cop/lambda.rb
Constant Summary collapse
- SINGLE_MSG =
'Use the new lambda literal syntax ->(params) {...}.'
- MULTI_MSG =
'Use the lambda method for multi-line lambdas.'
- TARGET =
s(:send, nil, :lambda)
Instance Attribute Summary
Attributes inherited from Cop
#debug, #disabled_lines, #offences
Instance Method Summary collapse
Methods inherited from Cop
#add_offence, cop_name, #has_report?, #ignore_node, inherited, #initialize, #inspect, #name
Constructor Details
This class inherits a constructor from Rubocop::Cop::Cop
Instance Method Details
#on_block(node) ⇒ Object
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 |
# File 'lib/rubocop/cop/lambda.rb', line 11 def on_block(node) # We're looking for # (block # (send nil :lambda) # ...) block_method, = *node if block_method == TARGET selector = block_method.loc.selector.source lambda_length = lambda_length(node) if selector != '->' && lambda_length == 0 add_offence(:convention, block_method.loc.line, SINGLE_MSG) elsif selector == '->' && lambda_length > 0 add_offence(:convention, block_method.loc.line, MULTI_MSG) end end super end |