Sha256: f021653183f8666742a0b744022d9b2844e70dd3fbc048f0db5322df779c1c20
Contents?: true
Size: 1.52 KB
Versions: 3
Compression:
Stored size: 1.52 KB
Contents
# encoding: utf-8
module ServiceObjects
module Helpers
# Features for escaping from runtime errors
#
# @note
# A target class should **include** the module
module Exceptions
# Re-raises standard errors as <tt>ServiceObjects::Invalid</tt>
#
# Mutates the current object by adding error messages
#
# @example
# class MyClass
# includes ServiceObjects::Helpers::Exceptions
# end
#
# begin
# MyClass.new.escape { fail StandardError.new "foo" }
# rescue => err
# puts err.class.name
# puts messages
# end
#
# # => ServiceObjects::Invalid
# # => [<ServiceObject::Message type="error" text="foo" ...>]
#
# @yield the block
#
# @raise [ServiceObjects::Invalid]
# if the block raises +StandardError+
#
# @return [Object] the value returned by the block
def escape
yield if block_given?
rescue => error
collect_messages_from error
raise Invalid.new(self)
end
private
# @!parse include ServiceObjects::Helpers::Messages
def self.included(klass)
klass.include Messages
end
def collect_messages_from(error)
if error.is_a? Invalid
messages.concat(error.messages) if error.object != self
else
add_message type: "error", text: error.message
end
end
end # module Exceptions
end # module Helpers
end # module ServiceObjects
Version data entries
3 entries across 3 versions & 1 rubygems