# frozen_string_literal: true module SyntaxSuggest # Tracks which lines various code blocks have expanded to # and which are still unexplored class UnvisitedLines def initialize(code_lines:) @unvisited = code_lines.sort_by(&:indent_index) @visited_lines = {} @visited_lines.compare_by_identity end def empty? @unvisited.empty? end def peek @unvisited.last end def pop @unvisited.pop end def visit_block(block) block.lines.each do |line| next if @visited_lines[line] @visited_lines[line] = true end while @visited_lines[@unvisited.last] @unvisited.pop end end end end