Handbook
Glossary
Continuations
Factor handbook
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At any point in the execution of a program, the
current continuation
represents the future of the computation.
Words for working with continuations are found in the
continuations
vocabulary; implementation details are in
continuations
.
private
.
Continuations can be reified with the following two words:
callcc0
( quot -- )
callcc1
( quot -- obj )
Another two words resume continuations:
continue
( continuation -- * )
continue-with
( obj continuation -- * )
Continuations as control-flow:
attempt-all
( ... seq quot: ( ... elt -- ... obj ) -- ... obj )
with-return
( quot -- )
Continuations serve as the building block for a number of higher-level abstractions, such as
Exception handling
and
Co-operative threads
.
Continuation implementation details