From 250f4c0453f038f9014705eed966d6c9cb186a1a Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Mon, 16 Feb 2015 21:53:54 +0100
Subject: Properly lint map expressions in erl_lint

The returned variable table when linting a map expression shouldn't include
variables that didn't appear in the expression.

Reported-By: Alexei Sholik
---
 lib/stdlib/src/erl_lint.erl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'lib/stdlib/src')

diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 26d8454731..8bebedf54f 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -2288,8 +2288,8 @@ map_fields([{Tag,_,K,V}|Fs], Vt, St, F) when Tag =:= map_field_assoc;
     {Pvt,St2} = F([K,V], Vt, St),
     {Vts,St3} = map_fields(Fs, Vt, St2, F),
     {vtupdate(Pvt, Vts),St3};
-map_fields([], Vt, St, _) ->
-  {Vt,St}.
+map_fields([], _, St, _) ->
+  {[],St}.
 
 %% warn_invalid_record(Line, Record, State0) -> State
 %% Adds warning if the record is invalid.
-- 
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