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# File 'lib/schema/schema.rb', line 28
def attribute_macro(attribute_name, type=nil, strict: nil, default: nil)
if type.nil? && !strict.nil?
raise Schema::Attribute::Error, "The \"#{attribute_name}\" attribute is declared with the \"strict\" option but a type is not specified"
end
if type == Boolean && strict == false
raise Schema::Attribute::Error, "The \"#{attribute_name}\" attribute is declared with the \"strict\" option disabled but boolean type is specified"
end
check = nil
if type == Boolean
strict ||= true
check = proc do |val|
unless val.nil? || Boolean.(val)
raise Schema::Attribute::TypeError, "#{val.inspect} is not a boolean"
end
end
elsif !type.nil?
strict ||= false
check = proc do |val|
unless val.nil?
if strict
raise Schema::Attribute::TypeError, "#{val.inspect} is not an instance of #{type.name}" unless val.instance_of? type
else
raise Schema::Attribute::TypeError, "#{val.inspect} is not a kind of #{type.name}" unless val.is_a? type
end
end
end
end
initialize_value = nil
if default.is_a? Proc
initialize_value = default
elsif !default.nil?
initialize_value = proc { default.clone }
end
::Attribute::Define.(self, attribute_name, :accessor, check: check, &initialize_value)
attribute = attributes.register(attribute_name, type, strict)
attribute
end
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