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Makes new_name a new copy of the method old_name. This can be used to retain access to methods that are overridden.

module Mod
  alias_method :orig_exit, :exit
  def exit(code=0)
    puts "Exiting with code #{code}"
    orig_exit(code)
  end
end
include Mod
exit(99)

produces:

Exiting with code 99

Returns true if the named method is defined by mod (or its included modules and, if mod is a class, its ancestors). Public and protected methods are matched. String arguments are converted to symbols.

module A
  def method1()  end
  def protected_method1()  end
  protected :protected_method1
end
class B
  def method2()  end
  def private_method2()  end
  private :private_method2
end
class C < B
  include A
  def method3()  end
end

A.method_defined? :method1              #=> true
C.method_defined? "method1"             #=> true
C.method_defined? "method2"             #=> true
C.method_defined? "method3"             #=> true
C.method_defined? "protected_method1"   #=> true
C.method_defined? "method4"             #=> false
C.method_defined? "private_method2"     #=> false

Returns a DateTime object which denotes self.

Returns self.

Returns a DateTime object which denotes self.

Returns true for IPv4-compatible IPv6 address (::/80). It returns false otherwise.

Calls WIN32OLE#invoke method.

Returns the array of WIN32OLE_METHOD object. The element is OLE method of WIN32OLE object.

excel = WIN32OLE.new('Excel.Application')
methods = excel.ole_methods

Returns WIN32OLE_METHOD object corresponding with method specified by 1st argument.

excel = WIN32OLE.new('Excel.Application')
method = excel.ole_method_help('Quit')

Returns the size of arguments of the method.

tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Workbook')
method = WIN32OLE_METHOD.new(tobj, 'SaveAs')
puts method.size_params # => 11

Returns value specified by the member name of VT_RECORD OLE variable. Or sets value specified by the member name of VT_RECORD OLE variable. If the member name is not correct, KeyError exception is raised.

If COM server in VB.NET ComServer project is the following:

Imports System.Runtime.InteropServices
Public Class ComClass
    Public Structure Book
        <MarshalAs(UnmanagedType.BStr)> _
        Public title As String
        Public cost As Integer
    End Structure
End Class

Then getting/setting value from Ruby is as the following:

obj = WIN32OLE.new('ComServer.ComClass')
book = WIN32OLE_RECORD.new('Book', obj)
book.title # => nil ( book.method_missing(:title) is invoked. )
book.title = "Ruby" # ( book.method_missing(:title=, "Ruby") is invoked. )

Returns array of WIN32OLE_METHOD objects which represent OLE method defined in OLE type library.

tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Worksheet')
methods = tobj.ole_methods.collect{|m|
  m.name
}
# => ['Activate', 'Copy', 'Delete',....]

Invoked by Ruby when obj is sent a message it cannot handle. symbol is the symbol for the method called, and args are any arguments that were passed to it. By default, the interpreter raises an error when this method is called. However, it is possible to override the method to provide more dynamic behavior. If it is decided that a particular method should not be handled, then super should be called, so that ancestors can pick up the missing method. The example below creates a class Roman, which responds to methods with names consisting of roman numerals, returning the corresponding integer values.

class Roman
  def roman_to_int(str)
    # ...
  end
  def method_missing(methId)
    str = methId.id2name
    roman_to_int(str)
  end
end

r = Roman.new
r.iv      #=> 4
r.xxiii   #=> 23
r.mm      #=> 2000

Stores the indicated separators for later use.

If auto-discovery was requested for @row_sep, this method will read ahead in the @io and try to find one. ARGF, STDIN, STDOUT, STDERR and any stream open for output only with a default @row_sep of $INPUT_RECORD_SEPARATOR ($/).

This method also establishes the quoting rules used for CSV output.

Handles the magic of delegation through _getobj_.

Returns the methods available to this delegate object as the union of this object’s and _getobj_ public methods.

Returns the methods available to this delegate object as the union of this object’s and _getobj_ protected methods.

Define methodname as instance method of mod from compiled Ruby source.

example:

filename = 'example.rhtml'   # 'arg1' and 'arg2' are used in example.rhtml
erb = ERB.new(File.read(filename))
erb.def_method(MyClass, 'render(arg1, arg2)', filename)
print MyClass.new.render('foo', 123)

Returns true if the ipaddr is an IPv4-compatible IPv6 address.

Returns a new ipaddr built by converting the native IPv4 address into an IPv4-compatible IPv6 address.

Returns a Method of superclass which would be called when super is used or nil if there is no method on superclass.

Returns a Method of superclass which would be called when super is used or nil if there is no method on superclass.

Return the name at the definition of the method being called