From c3ed56aed626cfd169610c9dc08bede74a4aab3c Mon Sep 17 00:00:00 2001
From: Hans Bolinder <hasse@erlang.org>
Date: Mon, 13 Feb 2017 13:32:53 +0100
Subject: stdlib: improve the erl_anno module's debug tests

---
 lib/stdlib/src/erl_anno.erl | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'lib/stdlib')

diff --git a/lib/stdlib/src/erl_anno.erl b/lib/stdlib/src/erl_anno.erl
index d32c34dabd..d0310f52e2 100644
--- a/lib/stdlib/src/erl_anno.erl
+++ b/lib/stdlib/src/erl_anno.erl
@@ -1,7 +1,7 @@
 %%
 %% %CopyrightBegin%
 %%
-%% Copyright Ericsson AB 1996-2015. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2017. All Rights Reserved.
 %%
 %% Licensed under the Apache License, Version 2.0 (the "License");
 %% you may not use this file except in compliance with the License.
@@ -42,7 +42,7 @@
 
 %% Debug: define DEBUG to make sure that annotations are handled as an
 %% opaque type. Note that all abstract code need to be compiled with
-%% DEBUG=true. See also ./erl_pp.erl.
+%% DEBUG=true. See also ./erl_pp.erl and ./erl_parse.yrl.
 
 %-define(DEBUG, true).
 
@@ -52,7 +52,11 @@
                     | {'record', record()}
                     | {'text', string()}.
 
+-ifdef(DEBUG).
+-opaque anno() :: [annotation(), ...].
+-else.
 -opaque anno() :: location() | [annotation(), ...].
+-endif.
 -type anno_term() :: term().
 
 -type column() :: pos_integer().
-- 
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