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# frozen_string_literal: true
module RuboCop
module Cop
# This class autocorrects `if...then` structures to a multiline `if` statement
class IfThenCorrector
DEFAULT_INDENTATION_WIDTH = 2
def initialize(if_node, indentation: nil)
@if_node = if_node
@indentation = indentation || DEFAULT_INDENTATION_WIDTH
end
def call(corrector)
corrector.replace(if_node, replacement)
end
private
attr_reader :if_node, :indentation
def replacement(node = if_node, indentation = nil)
indentation = ' ' * node.source_range.column if indentation.nil?
if_branch_source = node.if_branch&.source || 'nil'
elsif_indentation = indentation if node.respond_to?(:elsif?) && node.elsif?
if_branch = <<~RUBY
#{elsif_indentation}#{node.keyword} #{node.condition.source}
#{indentation}#{branch_body_indentation}#{if_branch_source}
RUBY
else_branch = rewrite_else_branch(node.else_branch, indentation)
if_branch + else_branch
end
def rewrite_else_branch(else_branch, indentation)
if else_branch.nil?
'end'
elsif else_branch.if_type? && else_branch.elsif?
replacement(else_branch, indentation)
else
<<~RUBY.chomp
#{indentation}else
#{indentation}#{branch_body_indentation}#{else_branch.source}
#{indentation}end
RUBY
end
end
def branch_body_indentation
@branch_body_indentation ||= (' ' * indentation).freeze
end
end
end
end
Version data entries
187 entries across 180 versions & 17 rubygems