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Capability is an unforgeable designation of an object together with a permission to make some set of operations with a given object.


  • Designations of objects in E. Those who hold these capabilities have the permission to invoke any method supported by the designated object.
  • Designations of functions and procedures in Emily. Those who hold these capabilities have the permission to call designated functions or procedures.
  • Designations of channels in Tamed Pict. Those who hold these capabilities may have a permission to make send and/or receive operations with the designated channel.

See also

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See What is a Capability, Anyway? for a partisan explanation of what capabilities actually are.

See also Overview: Capability Computation

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