Internal - instance storage

tclmqmsgque is using a class-attribute as instance-storage. …

Collaboration diagram for Internal - instance storage:

tclmqmsgque is using a class-attribute as instance-storage. …

introduction

• https://wiki.tcl-lang.org/page/Variables+in+TclOO

The instance-storage is defined using the variable keyword:

package require tclmkkernel
namespace import tclmkkernel::*
 
# package-item
::oo::class create MyClass {
  superclass MkBufferC
  # instance storage
  variable my_data
 
  constructor {val} {
    set my_data $val
  }
}