aboutsummaryrefslogtreecommitdiff
path: root/html-test/src/Threaded_TH.hs
diff options
context:
space:
mode:
authoridontgetoutmuch <dominic@steinitz.org>2015-12-20 21:01:47 +0000
committeridontgetoutmuch <dominic@steinitz.org>2015-12-20 21:01:47 +0000
commit2bdfda1fb2e0de696ca8c6f7a152b2f85a541be9 (patch)
treecc29895f7d69f051cfec172bb0f8c2ef03552789 /html-test/src/Threaded_TH.hs
parent5a57a24c44e06e964c4ea2276c842c722c4e93d9 (diff)
parentfa03f80d76f1511a811a0209ea7a6a8b6c58704f (diff)
Merge pull request #1 from haskell/ghc-head
Ghc head
Diffstat (limited to 'html-test/src/Threaded_TH.hs')
-rw-r--r--html-test/src/Threaded_TH.hs13
1 files changed, 13 insertions, 0 deletions
diff --git a/html-test/src/Threaded_TH.hs b/html-test/src/Threaded_TH.hs
new file mode 100644
index 00000000..53e5a399
--- /dev/null
+++ b/html-test/src/Threaded_TH.hs
@@ -0,0 +1,13 @@
+-- | Imported by 'Threaded', since a TH splice can't be used in the
+-- module where it is defined.
+module Threaded_TH where
+
+import Control.Concurrent (forkOS)
+import Language.Haskell.TH.Syntax (Exp (LitE), Lit (IntegerL), Q, runIO)
+
+-- | forkOS requires the threaded RTS, so this TH fails if haddock was
+-- built without @-threaded@.
+forkTH :: Q Exp
+forkTH = do
+ _ <- runIO (forkOS (return ()))
+ return (LitE (IntegerL 0))