CoercedSlot

From Erights

Jump to: navigation, search

This is a module used by the guard-based auditing proposal, though it can stand alone.

CoercedSlots implement the Slot protocol. They hold a single value, and the guard it was coerced by; they are immutable.

Contents

Maker

run/3

run(guard :Guard, specimen, ejector :ExitFunction) :CoercedSlot

Makes a CoercedSlot holding the result of guard.coerce(specimen, ejector).

attempt/2

attempt(guard :Guard, specimen) :CoercedSlot

As run/1 unless the guard ejects, in which case the resulting slot's guard will be LostApproval[guard].

Protocol

getGuard/0

Signature: getGuard() :Guard

Returns the guard that this slot's value was coerced, or otherwise approved, by.

__optUncall/0

__optUncall() :Portrayal

Returns a portrayal in terms of #attempt/1.

Personal tools
more tools