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ClojureCLR v2.7 Release Notes

  • 🖨 There have been enhancements in how the REPL prints values without a 🖨 print-method, specifically Throwable and the fallthrough Object case. 🖨 Both cases now print in a tagged literal data form that can be read by the reader.

    🖨 Unhandled objects print with the class, hash code, and toString:

    user=> *ns*
#object[clojure.lang.Namespace 0x55aa628 "user"]

    0️⃣ Thrown exceptions will still be printed in the normal way by the default 🖨 REPL but printing them to a stream will show a different form:

    user=> (/ 1 0)
ArithmeticException Divide by zero  clojure.lang.Numbers.divide (Numbers.java:158)
user=> (println *e)
#error {
 :cause Divide by zero
 :via
 [{:type java.lang.ArithmeticException
   :message Divide by zero
   :at [clojure.lang.Numbers divide Numbers.java 158]}]
 :trace
 [[clojure.lang.Numbers divide Numbers.java 158]
  [clojure.lang.Numbers divide Numbers.java 3808]
  ;; ... elided frames
  ]}

    ➕ Additionally, there is a new function available to obtain a Throwable as map data: Throwable->map.