Clojure

Exceptions are not cached in lazy seqs

Details

  • Type: Enhancement Enhancement
  • Status: Open Open
  • Priority: Minor Minor
  • Resolution: Unresolved
  • Affects Version/s: None
  • Fix Version/s: None
  • Component/s: None
  • Labels:
    None

Description

It is confusing that exceptions will only be thrown once when it is possible to iterate over a seq many times.

user=> (def a (for [i (reverse (range 2))] (/ 1 i)))
#'user/a
user=> (println a)

ArithmeticException Divide by zero clojure.lang.Numbers.divide
(Numbers.java:156)
(user=> (println a)
(1)
nil
user=> (println a)
(1)
nil

Activity

People

Vote (1)
Watch (4)

Dates

  • Created:
    Updated: