class RuboCop::Cop::LambdaLiteralToMethodCorrector
This class autocorrects lambda literal to method notation.
Attributes
arguments[R]
block_node[R]
method[R]
Public Class Methods
new(block_node)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 7 def initialize(block_node) @block_node = block_node @method = block_node.send_node @arguments = block_node.arguments end
Public Instance Methods
call(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 13 def call(corrector) # Check for unparenthesized args' preceding and trailing whitespaces. remove_unparenthesized_whitespace(corrector) if block_node.block_type? # Avoid correcting to `lambdado` by inserting whitespace # if none exists before or after the lambda arguments. insert_separating_space(corrector) remove_arguments(corrector) end replace_selector(corrector) replace_delimiters(corrector) insert_arguments(corrector) end
Private Instance Methods
arg_to_unparenthesized_call?()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 118 def arg_to_unparenthesized_call? current_node = block_node parent = current_node.parent if parent&.pair_type? current_node = parent.parent parent = current_node.parent end return false unless parent&.send_type? return false if parent.parenthesized_call? current_node.sibling_index > 1 end
arguments_begin_pos()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 102 def arguments_begin_pos arguments.loc.begin&.begin_pos end
arguments_end_pos()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 98 def arguments_end_pos arguments.loc.end&.end_pos end
block_begin()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 110 def block_begin block_node.loc.begin end
block_end()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 106 def block_end block_node.loc.end end
insert_arguments(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 59 def insert_arguments(corrector) return if arguments.empty? arg_str = " |#{lambda_arg_string}|" corrector.insert_after(block_node.loc.begin, arg_str) end
insert_separating_space(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 43 def insert_separating_space(corrector) return unless needs_separating_space? corrector.insert_before(block_begin, ' ') end
lambda_arg_string()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 88 def lambda_arg_string arguments.children.map(&:source).join(', ') end
needs_separating_space?()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 92 def needs_separating_space? (block_begin.begin_pos == arguments_end_pos && selector_end.end_pos == arguments_begin_pos) || block_begin.begin_pos == selector_end.end_pos end
remove_arguments(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 53 def remove_arguments(corrector) return if arguments.empty_and_without_delimiters? corrector.remove(arguments) end
remove_leading_whitespace(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 66 def remove_leading_whitespace(corrector) corrector.remove_preceding( arguments, arguments.source_range.begin_pos - block_node.send_node.source_range.end_pos ) end
remove_trailing_whitespace(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 74 def remove_trailing_whitespace(corrector) size = block_begin.begin_pos - arguments.source_range.end_pos - 1 corrector.remove_preceding(block_begin, size) if size.positive? end
remove_unparenthesized_whitespace(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 36 def remove_unparenthesized_whitespace(corrector) return if arguments.empty? || arguments.parenthesized_call? remove_leading_whitespace(corrector) remove_trailing_whitespace(corrector) end
replace_delimiters(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 79 def replace_delimiters(corrector) return if block_node.braces? || !arg_to_unparenthesized_call? corrector.insert_after(block_begin, ' ') unless separating_space? corrector.replace(block_begin, '{') corrector.replace(block_end, '}') end
replace_selector(corrector)
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 49 def replace_selector(corrector) corrector.replace(method, 'lambda') end
selector_end()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 114 def selector_end method.loc.selector.end end
separating_space?()
click to toggle source
# File lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb, line 134 def separating_space? block_begin.source_buffer.source[block_begin.begin_pos + 2].match?(/\s/) end