Module: SleepingKingStudios::Tools::ObjectTools

Extended by:
ObjectTools
Included in:
ObjectTools
Defined in:
lib/sleeping_king_studios/tools/object_tools.rb

Overview

Low-level tools for working with objects.

Instance Method Summary collapse

Instance Method Details

#apply(base, proc, *args, **kwargs, &block) ⇒ Object

Takes a proc or lambda and invokes it with the given object as receiver, with any additional arguments or block provided.

Parameters:

  • base (Object) —

    The receiver. The proc will be called in the context of this object.

  • proc (Proc) —

    The proc or lambda to call.

  • args (Array) —

    Optional. Additional arguments to pass in to the proc or lambda.

  • block (block) —

    Optional. If present, will be passed in to proc or lambda.

Returns:

  • The result of calling the proc or lambda with the given receiver and any additional arguments or block.



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# File 'lib/sleeping_king_studios/tools/object_tools.rb', line 23

def apply base, proc, *args, **kwargs, &block
  temporary_method_name = :__sleeping_king_studios_tools_object_tools_temporary_method_for_applying_proc__

  metaclass = class << base; self; end
  metaclass.send :define_method, temporary_method_name, &proc

  begin
    if kwargs.empty?
      base.send temporary_method_name, *args, &block
    else
      base.send temporary_method_name, *args, **kwargs, &block
    end # if-else
  ensure
    metaclass.send :remove_method, temporary_method_name if temporary_method_name && defined?(temporary_method_name)
  end
end

#eigenclass(object) ⇒ Class Also known as: metaclass

Returns the object’s eigenclass.

Parameters:

  • object (Object) —

    The object for which an eigenclass is required.

Returns:

  • (Class) —

    The object’s eigenclass.



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# File 'lib/sleeping_king_studios/tools/object_tools.rb', line 45

def eigenclass object
  class << object; self; end
end