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# File 'lib/bank_exchange_api/param.rb', line 3
def param(*names, klass)
names.each do |name|
class_eval <<-METHODS, __FILE__, __LINE__ + 1
def #{name}=(value)
@#{name}=value
end
def #{name}
value = @#{name} if defined?(@#{name})
@_#{name}_ ||= case #{klass}.name
when 'Array'
Array(value)
when 'String'
String(value) if value
when 'Integer'
Integer(value) if value
when 'Date'
if value
value.is_a?(Date) ? value : Date.parse(value.to_s)
end
else
raise UnsupportedParamClass, "Provide #{klass} class processing"
end
end
def #{name}!
self.#{name} || (raise MissingRequiredParam, "Param '#{name}' is required but missing")
end
METHODS
end
end
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