delete-ref ( ref -- )
Factor handbook » The language » Collections » References » Reference protocol

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set-ref ( obj ref -- )

Vocabulary
refs

Inputs

ref

a ref

Outputs
None

Word description
Deletes the value pointed to by this reference. In most references this simply sets the value to f, but in some cases it is more destructive, such as in value-ref and key-ref, where it actually deletes the entry from the underlying assoc.

See also
take

Definition

IN: refs

GENERIC: delete-ref ( ref -- )

Methods

USING: assocs refs ;

M: assoc-ref delete-ref >assoc-ref< delete-at ;


USING: boxes kernel refs ;

M: box delete-ref box> drop ;


USING: refs ;

M: ref delete-ref ref-off ;