Merge branch 'nox/maps-improve-erl_expand_records'

* nox/maps-improve-erl_expand_records:
  Fix expansion of records in maps

1 files changed, 8 insertions, 6 deletions

diff --git a/lib/stdlib/src/erl_expand_records.erl b/lib/stdlib/src/erl_expand_records.erl
index 4741bef6b9..f53c6e1278 100644
--- a/lib/stdlib/src/erl_expand_records.erl
+++ b/lib/stdlib/src/erl_expand_records.erl
@@ -135,9 +135,10 @@ pattern({tuple,Line,Ps}, St0) ->
 pattern({map,Line,Ps}, St0) ->
     {TPs,St1} = pattern_list(Ps, St0),
     {{map,Line,TPs},St1};
-pattern({map_field_exact,Line,Key,V0}, St0) ->
-    {V,St1} = pattern(V0, St0),
-    {{map_field_exact,Line,Key,V},St1};
+pattern({map_field_exact,Line,Key0,V0}, St0) ->
+    {Key,St1} = pattern(Key0, St0),
+    {V,St2} = pattern(V0, St1),
+    {{map_field_exact,Line,Key,V},St2};
 %%pattern({struct,Line,Tag,Ps}, St0) ->
 %%    {TPs,TPsvs,St1} = pattern_list(Ps, St0),
 %%    {{struct,Line,Tag,TPs},TPsvs,St1};
@@ -310,9 +311,10 @@ expr({tuple,Line,Es0}, St0) ->
 expr({map,Line,Es0}, St0) ->
     {Es1,St1} = expr_list(Es0, St0),
     {{map,Line,Es1},St1};
-expr({map,Line,Var,Es0}, St0) ->
-    {Es1,St1} = expr_list(Es0, St0),
-    {{map,Line,Var,Es1},St1};
+expr({map,Line,Arg0,Es0}, St0) ->
+    {Arg1,St1} = expr(Arg0, St0),
+    {Es1,St2} = expr_list(Es0, St1),
+    {{map,Line,Arg1,Es1},St2};
 expr({map_field_assoc,Line,K0,V0}, St0) ->
     {K,St1} = expr(K0, St0),
     {V,St2} = expr(V0, St1),