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percent_array.rb
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percent_array.rb
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# frozen_string_literal: true
module RuboCop
module Cop
# Common functionality for handling percent arrays.
module PercentArray
private
# Ruby does not allow percent arrays in an ambiguous block context.
#
# @example
#
# foo %i[bar baz] { qux }
def invalid_percent_array_context?(node)
parent = node.parent
parent&.send_type? && parent.arguments.include?(node) &&
!parent.parenthesized? && parent&.block_literal?
end
def allowed_bracket_array?(node)
comments_in_array?(node) || below_array_length?(node) ||
invalid_percent_array_context?(node)
end
def message(_node)
style == :percent ? self.class::PERCENT_MSG : self.class::ARRAY_MSG
end
def comments_in_array?(node)
line_span = node.source_range.first_line...node.source_range.last_line
processed_source.each_comment_in_lines(line_span).any?
end
def check_percent_array(node)
array_style_detected(:percent, node.values.size)
add_offense(node) if style == :brackets
end
def check_bracketed_array(node)
return if allowed_bracket_array?(node)
array_style_detected(:brackets, node.values.size)
add_offense(node) if style == :percent
end
end
end
end