with-return ( quot -- )
Factor handbook » The language » Continuations

Prev:	attempt-all ( ... seq quot: ( ... elt -- ... obj ) -- ... obj )
Next:	Continuation implementation details

Vocabulary
continuations

Inputs

quot	a quotation

Outputs
None

Word description
Captures a continuation that can be reified by calling the return word. If so, it will resume execution immediately after the with-return word. If return is not called, then execution proceeds as if this word were simply call.

Examples
Only "Hi" will print:

USING: prettyprint continuations io ; [ "Hi" print return "Bye" print ] with-return
Hi

See also
return

Definition

USING: kernel namespaces ;

IN: continuations

: with-return ( quot -- )
    [ return-continuation ] dip [ with-variable ] 2curry callcc0
    ; inline