Clojure

• Type: Enhancement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Release 1.6
• Fix Version/s: None
• Component/s: None
• Labels:

  • compiler
  • ft

The compiler does not fail on "malformed" throw forms:

user=> (defn foo [] (throw))
#'user/foo

user=> (foo)
NullPointerException   user/foo (NO_SOURCE_FILE:1)

user=> (defn bar [] (throw Exception baz))
#'user/bar

user=> (bar)
ClassCastException java.lang.Class cannot be cast to java.lang.Throwable  user/bar (NO_SOURCE_FILE:1)

; This one works, but ignored-symbol, should probably not be ignored
user=> (defn quux [] (throw (Exception. "Works!") ignored-symbol))
#'user/quux

user=> (quux)
Exception Works!  user/quux (NO_SOURCE_FILE:1)

The compiler can easily avoid these by counting forms.

Patch: v3_0001-CLJ-1456-counting-forms-to-catch-malformed-throw-for.patch

Screened by: Alex Miller

1. 

   v3_0001-CLJ-1456-counting-forms-to-catch-malformed-throw-for.patch

   30/Aug/14 2:15 AM

   2 kB

   Alf Kristian Støyle

• Assignee:

  Unassigned

  Reporter:

  Alf Kristian Støyle

• Created:

  30/Jun/14 11:52 AM

  Updated:

  10/Jan/15 9:12 AM