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-rw-r--r--lib/compiler/src/cerl_clauses.erl2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/compiler/src/cerl_clauses.erl b/lib/compiler/src/cerl_clauses.erl
index 7d6518c3c6..fa5104c01b 100644
--- a/lib/compiler/src/cerl_clauses.erl
+++ b/lib/compiler/src/cerl_clauses.erl
@@ -353,6 +353,8 @@ match(P, E, Bs) ->
map ->
%% The most we can do is to say "definitely no match" if a
%% map pattern is matched against non-map data.
+ %% (Note: See the document internal_doc/cerl-notes.md for
+ %% information why we don't try to do more here.)
case E of
any ->
{false, Bs};