read-only - Factor Documentation (original) (raw)
Vocabulary
syntax
Syntax
TUPLE: ... { slot read-only } ... ;
Inputs
None
Outputs
None
Word description
Defines a tuple slot to be read-only. If a tuple has read-only slots, instances of the tuple should only be created by calling boa, instead of new. Using boa is the only way to set the value of a read-only slot.
See also
initial:
Definition