SyntaxSuggest::ParseBlocksFromIndentLine#each_neighbor_block

# File tmp/rubies/ruby-3.4.1/lib/syntax_suggest/parse_blocks_from_indent_line.rb, line 37
def each_neighbor_block(target_line)
  scan = AroundBlockScan.new(code_lines: code_lines, block: CodeBlock.new(lines: target_line))
    .force_add_empty
    .force_add_hidden
    .scan_while { |line| line.indent >= target_line.indent }

  neighbors = scan.code_block.lines

  block = CodeBlock.new(lines: neighbors)
  if neighbors.length <= 2 || block.valid?
    yield block
  else
    until neighbors.empty?
      lines = [neighbors.pop]
      while (block = CodeBlock.new(lines: lines)) && block.invalid? && neighbors.any?
        lines.prepend neighbors.pop
      end

      yield block if block
    end
  end
end