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# frozen_string_literal: true
class Serega
module SeregaValidations
module Attribute
#
# Attribute `:value` option validator
#
class CheckOptValue
class << self
#
# Checks attribute :value option
#
# @param opts [Hash] Attribute options
#
# @raise [SeregaError] SeregaError that option has invalid value
#
# @return [void]
#
def call(opts, block = nil)
return unless opts.key?(:value)
check_usage_with_other_params(opts, block)
check_proc(opts[:value])
end
private
def check_usage_with_other_params(opts, block)
raise SeregaError, "Option :value can not be used together with option :key" if opts.key?(:key)
raise SeregaError, "Option :value can not be used together with option :const" if opts.key?(:const)
raise SeregaError, "Option :value can not be used together with block" if block
end
def check_proc(value)
raise SeregaError, value_error unless value.is_a?(Proc)
params = value.parameters
if value.lambda?
return if (params.count == 2) && params.all? { |par| par[0] == :req }
elsif (params.count <= 2) && params.all? { |par| par[0] == :opt }
return
end
raise SeregaError, value_error
end
def value_error
"Option :value must be a Proc that is able to accept two parameters (no **keyword or *array args)"
end
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems