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Contents
# frozen_string_literal: true
module RuboCop
module RSpec
# Shared behavior for aligning braces for single line lets
class AlignLetBrace
extend NodePattern::Macros
def_node_matcher :let?, Language::Helpers::ALL.block_pattern.freeze
def initialize(root, token)
@root = root
@token = token
end
def offending_tokens
single_line_lets.reject do |let|
target_column_for(let) == let_token(let).column
end
end
def indent_for(node)
' ' * (target_column_for(node) - let_token(node).column)
end
private
def let_token(node)
node.loc.public_send(token)
end
def target_column_for(let)
let_group_for(let).map { |member| let_token(member).column }.max
end
def let_group_for(let)
adjacent_let_chunks.detect do |chunk|
chunk.any? do |member|
member == let && member.loc.line == let.loc.line
end
end
end
def adjacent_let_chunks
last_line = nil
single_line_lets.chunk do |node|
line = node.loc.line
last_line = (line if last_line.nil? || last_line + 1 == line)
last_line.nil?
end.map(&:last)
end
def single_line_lets
@single_line_lets ||=
root.each_node(:block).select do |node|
let?(node) && node.single_line?
end
end
attr_reader :root, :token
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems