Class: Method

Inherits:

NSObject

• Object
• NSObject
• Method

show all

Instance Method Summary (collapse)

• - ==

  Two method objects are equal if they are bound to the same object and refer to the same method definition.

• - []

  Invokes the meth with the specified arguments, returning the method's return value.

• - arity

  Returns an indication of the number of arguments accepted by a method.

• - call

  Invokes the meth with the specified arguments, returning the method's return value.

• - clone

  MISSING: documentation.

• - ==

  Two method objects are equal if they are bound to the same object and refer to the same method definition.

• - hash

  Returns a hash value corresponding to the method object.

• - inspect

  Returns the name of the underlying method.

• - name

  Returns the name of the method.

• - owner

  Returns the class or module that defines the method.

• - receiver

  Returns the bound receiver of the method object.

• - to_proc

  Returns a Proc object corresponding to this method.

• - to_s

  Returns the name of the underlying method.

• - unbind

  Dissociates meth from its current receiver.

Methods inherited from NSObject

#!, #!=, #!~, #, #===, #=~, #Rational, #__callee__, #__method__, #__send__, #__type__, `, alloc, allocWithZone:, #autoContentAccessingProxy, autoload, autoload?, autorelease_pool, #awakeAfterUsingCoder:, binding, block_given?, caller, cancelPreviousPerformRequestsWithTarget:, cancelPreviousPerformRequestsWithTarget:selector:object:, catch, class, classFallbacksForKeyedArchiver, #classForCoder, #classForKeyedArchiver, classForKeyedUnarchiver, conformsToProtocol:, #copy, copyWithZone:, #dealloc, #define_singleton_method, description, display, #doesNotRecognizeSelector:, #dup, #enum_for, #equal?, #extend, fail, #finalize, format, #forwardInvocation:, #forwardingTargetForSelector:, framework, #freeze, #frozen?, getpass, gets, global_variables, #init, initialize, #initialize_clone, #initialize_copy, #initialize_dup, instanceMethodForSelector:, instanceMethodSignatureForSelector:, #instance_eval, #instance_exec, #instance_of?, #instance_variable_defined?, #instance_variable_get, #instance_variable_set, #instance_variables, instancesRespondToSelector:, isSubclassOfClass:, #is_a?, iterator?, #kind_of?, lambda, load, load_bridge_support_file, load_plist, local_variables, loop, #method, #methodForSelector:, #methodSignatureForSelector:, #methods, #mutableCopy, mutableCopyWithZone:, new, #nil?, open, p, #performSelector:onThread:withObject:waitUntilDone:, #performSelector:onThread:withObject:waitUntilDone:modes:, #performSelector:withObject:afterDelay:, #performSelector:withObject:afterDelay:inModes:, #performSelectorInBackground:withObject:, #performSelectorOnMainThread:withObject:waitUntilDone:, #performSelectorOnMainThread:withObject:waitUntilDone:modes:, print, printf, #private_methods, proc, #protected_methods, #public_method, #public_methods, #public_send, putc, puts, raise, rand, readline, readlines, #replacementObjectForCoder:, #replacementObjectForKeyedArchiver:, require, resolveClassMethod:, resolveInstanceMethod:, #respond_to?, #respond_to_missing?, select, #send, setVersion:, #singleton_methods, sprintf, srand, superclass, #taint, #tainted?, #tap, test, throw, #to_plist, trace_var, trap, #trust, #untaint, untrace_var, #untrust, #untrusted?, version

m = 12.method("+")
m.call(3)    #=> 15
m.call(20)   #=> 32

class C
  def one;    end
  def two(a); end
  def three(*a);  end
  def four(a, b); end
  def five(a, b, *c);    end
  def six(a, b, *c, &d); end
end
c = C.new
c.method(:one).arity     #=> 0
c.method(:two).arity     #=> 1
c.method(:three).arity   #=> -1
c.method(:four).arity    #=> 2
c.method(:five).arity    #=> -3
c.method(:six).arity     #=> -3

"cat".method(:size).arity      #=> 0
"cat".method(:replace).arity   #=> 1
"cat".method(:squeeze).arity   #=> -1
"cat".method(:count).arity     #=> -1

m = 12.method("+")
m.call(3)    #=> 15
m.call(20)   #=> 32

"cat".method(:count).inspect   #=> "#<Method: String#count>"

"cat".method(:count).inspect   #=> "#<Method: String#count>"