summaryrefslogtreecommitdiff
path: root/docs/users_guide
diff options
context:
space:
mode:
authorJudah Jacobson <judah@users.noreply.github.com>2020-03-02 12:09:23 -0800
committerMarge Bot <ben+marge-bot@smart-cactus.org>2020-03-15 10:57:48 -0400
commitc35c545d3f32f092c52052349f741739a844ec0f (patch)
treeec3c157dbe12dd2d016e6d5c03161b063e899d6a /docs/users_guide
parent2e82465fff5851f00449131fdc8bacd3ca95f90f (diff)
downloadhaskell-c35c545d3f32f092c52052349f741739a844ec0f.tar.gz
Add a -no-haddock flag.
This flag undoes the effect of a previous "-haddock" flag. Having both flags makes it easier for build systems to enable Haddock parsing in a set of global flags, but then disable it locally for specific targets (e.g., third-party packages whose comments don't pass the validation in the latest GHC). I added the flag to expected-undocumented-flags.txt since `-haddock` was alreadyin that list.
Diffstat (limited to 'docs/users_guide')
-rw-r--r--docs/users_guide/expected-undocumented-flags.txt1
-rw-r--r--docs/users_guide/using.rst20
2 files changed, 20 insertions, 1 deletions
diff --git a/docs/users_guide/expected-undocumented-flags.txt b/docs/users_guide/expected-undocumented-flags.txt
index 837c2a59e2..ea8543b58c 100644
--- a/docs/users_guide/expected-undocumented-flags.txt
+++ b/docs/users_guide/expected-undocumented-flags.txt
@@ -127,7 +127,6 @@
-fuse-rpaths
-fversion-macros
-fvia-c
--haddock
-haddock-opts
-hpcdir
-instantiated-with
diff --git a/docs/users_guide/using.rst b/docs/users_guide/using.rst
index 86094cc9cc..7bdd421fac 100644
--- a/docs/users_guide/using.rst
+++ b/docs/users_guide/using.rst
@@ -1129,6 +1129,26 @@ Some flags only make sense for particular target platforms.
:ref:`native code generator <native-code-gen>`. The resulting compiled
code will only run on processors that support BMI2 (Intel Haswell and newer, AMD Excavator, Zen and newer).
+Haddock
+-------
+
+.. index::
+ single: haddock
+
+.. ghc-flag:: -haddock
+ :shortdesc: Make the parser more strict about Haddock comments.
+ :type: dynamic
+ :reverse: -no-haddock
+ :category: misc
+
+ By default, GHC ignores Haddock comments (``-- | ...`` and ``-- ^ ...``)
+ and does not check that they're associated with a valid term, such as a
+ top-level type-signature. With this flag GHC will parse Haddock comments
+ and include them in the interface file it produces.
+
+ Note that this flag makes GHC's parser more strict so programs which are
+ accepted without Haddock may be rejected with :ghc-flag:`-haddock`.
+
Miscellaneous flags
-------------------