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| author | Eric Mertens <emertens@gmail.com> | 2014-10-07 08:48:37 -0500 |
|---|---|---|
| committer | Austin Seipp <austin@well-typed.com> | 2014-10-07 08:48:38 -0500 |
| commit | adcb9dbc0bfb6a7dd3f4f746e2f8cd620745db75 (patch) | |
| tree | 5ebde7824e00cfaf08c4ab39e15f8e45d992862e /docs | |
| parent | 2ee252783b732649f6075b769bd6b964e3823400 (diff) | |
| download | haskell-adcb9dbc0bfb6a7dd3f4f746e2f8cd620745db75.tar.gz | |
Add support for LINE pragma in template-haskell
Summary:
Provide a way to generate {-# LINE #-} pragmas when generating
Decs in Template Haskell. This allows more meaningful line
numbers to be reported in compile-time errors for dynamically
generated code.
Test Plan: Run test suite
Reviewers: austin, hvr
Reviewed By: austin
Subscribers: hvr, simonmar, ezyang, carter, thomie
Differential Revision: https://phabricator.haskell.org/D299
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/users_guide/7.10.1-notes.xml | 3 | ||||
| -rw-r--r-- | docs/users_guide/glasgow_exts.xml | 5 |
2 files changed, 7 insertions, 1 deletions
diff --git a/docs/users_guide/7.10.1-notes.xml b/docs/users_guide/7.10.1-notes.xml index d319cc5289..a02c4b06ce 100644 --- a/docs/users_guide/7.10.1-notes.xml +++ b/docs/users_guide/7.10.1-notes.xml @@ -101,7 +101,8 @@ <itemizedlist> <listitem> <para> - TODO FIXME + Added support for generating LINE pragma declarations + (<xref linkend="line-pragma"/>). </para> </listitem> </itemizedlist> diff --git a/docs/users_guide/glasgow_exts.xml b/docs/users_guide/glasgow_exts.xml index 04e603aac7..dd98f5ab66 100644 --- a/docs/users_guide/glasgow_exts.xml +++ b/docs/users_guide/glasgow_exts.xml @@ -10500,6 +10500,11 @@ happen. 42 in the original. GHC will adjust its error messages to refer to the line/file named in the <literal>LINE</literal> pragma.</para> + + <para><literal>LINE</literal> pragmas generated from Template Haskell set + the file and line position for the duration of the splice and are limited + to the splice. Note that because Template Haskell splices abstract syntax, + the file positions are not automatically advanced.</para> </sect2> <sect2 id="rules"> |