class Crispr::Mutations::Block

def mutations_for(node)
  mutations = []
  method_call, args, body = *node
  # Remove all block arguments
  mutations << s(:block, method_call, s(:args), body) if args.is_a?(Parser::AST::Node) && args.type == :args && args.children.any?
  # Remove the block body
  mutations << s(:block, method_call, args, nil)
  # Replace block with just the method call
  mutations << method_call
  # Remove each individual statement if body is a :begin
  if body&.type == :begin
    body.children.each do |child|
      mutations << s(:block, method_call, args, child)
    end
  end
  mutations
end