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Contents
# frozen_string_literal: true
module Ree::Contracts
module ArgContracts
class HashOf
extend Ree::Contracts::ArgContracts::Squarable
include Ree::Contracts::Truncatable
attr_reader :key_validator, :value_validator
def initialize(*contracts)
if contracts.size != 2
raise BadContractError, 'HashOf should accept exactly two contracts'
end
@key_validator = Validators.fetch_for(contracts[0])
@value_validator = Validators.fetch_for(contracts[1])
end
def valid?(value)
value.is_a?(Hash) &&
value.each_key.all?(&key_validator.method(:call)) &&
value.each_value.all?(&value_validator.method(:call))
end
def to_s
"HashOf[#{key_validator.to_s}, #{value_validator.to_s}]"
end
def message(value, name, lvl = 1)
unless value.is_a?(Hash)
return "expected Hash, got #{value.class} => #{truncate(value.inspect)}"
end
errors = []
sps = " " * lvl
value.each do |key, val|
if errors.size > 4
errors << "\n\t#{sps} - ..."
break
end
unless key_validator.call(key)
msg = key_validator.message(key, "#{name}[#{key.inspect}]", lvl + 1)
errors << "\n\t#{sps} - invalid key #{key.inspect}, #{msg}"
end
unless value_validator.call(val)
msg = key_validator.message(val, "#{name}[#{key.inspect}]", lvl + 1)
errors << "\n\t#{sps} - invalid value for #{key.inspect} key, #{msg}"
end
end
errors.join
end
end
end
end
Version data entries
50 entries across 50 versions & 1 rubygems