class TTY::Prompt::Evaluator

@api private
Evaluates provided parameters and stops if any of them fails

def call(initial) 

def call(initial)
  seed = Result::Success.new(@question, initial)
  results.reduce(seed, &:with)
end

def check(proc = nil, &block) 

def check(proc = nil, &block)
  results << (proc || block)
end

def initialize(question, &block) 

def initialize(question, &block)
  @question = question
  @results = []
  instance_eval(&block) if block
end