Clojure

• Type: Defect
• Status: Open
• Resolution: Unresolved
• Affects Version/s: None
• Fix Version/s: Backlog
• Component/s: None
• Labels:

  None

Simplest case:

user=>
(deftype Bench [#^{:unsynchronized-mutable true} val]
Runnable
(run [_]
(fn [] (set! val 5))))

java.lang.IllegalArgumentException: Cannot assign to non-mutable: val (NO_SOURCE_FILE:5)

Functions should be able to mutate mutable fields in their surrounding deftype (just like inner classes do in Java).

Filed as bug, because the loop special form expands into a fn form sometimes:

user=>
(deftype Bench [#^{:unsynchronized-mutable true} val]
Runnable
(run [_]
(let [x (loop [] (set! val 5))])))
java.lang.IllegalArgumentException: Cannot assign to non-mutable: val (NO_SOURCE_FILE:9)

• Assignee:

  Unassigned

  Reporter:

  Anonymous

• Created:

  23/Feb/10 4:41 PM

  Updated:

  01/Oct/10 9:35 AM