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Contents
# frozen_string_literal: true
module RuboCop
module Cop
# This class auto-corrects `#each` enumeration to `for` iteration.
class EachToForCorrector
extend NodePattern::Macros
CORRECTION_WITH_ARGUMENTS =
'for %<variables>s in %<collection>s do'
CORRECTION_WITHOUT_ARGUMENTS = 'for _ in %<enumerable>s do'
def initialize(block_node)
@block_node = block_node
@collection_node = block_node.send_node.receiver
@argument_node = block_node.arguments
end
def call(corrector)
corrector.replace(offending_range, correction)
end
private
attr_reader :block_node, :collection_node, :argument_node
def correction
if block_node.arguments?
format(CORRECTION_WITH_ARGUMENTS,
collection: collection_node.source,
variables: argument_node.children.first.source)
else
format(CORRECTION_WITHOUT_ARGUMENTS,
enumerable: collection_node.source)
end
end
def offending_range
if block_node.arguments?
replacement_range(argument_node.loc.expression.end_pos)
else
replacement_range(block_node.loc.begin.end_pos)
end
end
def replacement_range(end_pos)
Parser::Source::Range.new(block_node.loc.expression.source_buffer,
block_node.loc.expression.begin_pos,
end_pos)
end
end
end
end
Version data entries
97 entries across 77 versions & 6 rubygems