Module: Easyop::Rescuable

Defined in:
lib/easyop/rescuable.rb

Overview

Lightweight rescue_from DSL, modelled after ActiveSupport::Rescuable. Works without ActiveSupport and can be used standalone.

Usage:

rescue_from SomeError, with: :handle_it
rescue_from OtherError, AnotherError do |e|
  ctx.fail!(error: e.message)
end

Handlers are checked in definition order (first match wins). Subclasses inherit their parent’s handlers.

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/easyop/rescuable.rb', line 14

def self.included(base)
  base.extend(ClassMethods)
end

Instance Method Details

#rescue_with_handler(exception) ⇒ Object

Attempt to handle ‘exception` with a registered handler. Returns true if handled, false if no matching handler found.



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# File 'lib/easyop/rescuable.rb', line 45

def rescue_with_handler(exception)
  handler = handler_for_rescue(exception)
  return false unless handler

  case handler
  when Symbol then send(handler, exception)
  when Proc   then instance_exec(exception, &handler)
  end
  true
end