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authorEdward Z. Yang <ezyang@cs.stanford.edu>2017-02-10 00:48:42 -0800
committerEdward Z. Yang <ezyang@cs.stanford.edu>2017-02-12 19:14:52 -0800
commita4ccd330273ccfd136481ee82ae9495f5dd5f146 (patch)
tree11578c831634d1dd40b7b17dccf595c4589a78ff /docs
parente46a2e164f7a785892e481fb35d66f3a50678ce8 (diff)
downloadhaskell-a4ccd330273ccfd136481ee82ae9495f5dd5f146.tar.gz
Add index entry for signature files / Backpack.
Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu>
Diffstat (limited to 'docs')
-rw-r--r--docs/users_guide/separate_compilation.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/users_guide/separate_compilation.rst b/docs/users_guide/separate_compilation.rst
index 9693cea8fd..f6c710f155 100644
--- a/docs/users_guide/separate_compilation.rst
+++ b/docs/users_guide/separate_compilation.rst
@@ -662,6 +662,9 @@ A hs-boot file is written in a subset of Haskell:
Module signatures
-----------------
+.. index::
+ single: signature files; Backpack; hsig files
+
GHC 8.2 supports module signatures (``hsig`` files), which allow you to
write a signature in place of a module implementation, deferring the
choice of implementation until a later point in time. This feature is