Allow Name/Arity syntax in maps inside attributes

Currently Name/Arity syntax is supported in list and tuple terms. This change makes it possible to use this syntax in map terms for consistency and convenience.

Example:
-custom(#{test1 => init/2, test2 => [val/1, val/2]}).

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl
index e1ae3b7aea..039cc88b9c 100644
--- a/lib/stdlib/src/erl_parse.yrl
+++ b/lib/stdlib/src/erl_parse.yrl
@@ -753,6 +753,9 @@ attribute_farity({cons,L,H,T}) ->
 attribute_farity({tuple,L,Args0}) ->
     Args = attribute_farity_list(Args0),
     {tuple,L,Args};
+attribute_farity({map,L,Args0}) ->
+    Args = attribute_farity_map(Args0),
+    {map,L,Args};
 attribute_farity({op,L,'/',{atom,_,_}=Name,{integer,_,_}=Arity}) ->
     {tuple,L,[Name,Arity]};
 attribute_farity(Other) -> Other.
@@ -760,6 +763,14 @@ attribute_farity(Other) -> Other.
 attribute_farity_list(Args) ->
     [attribute_farity(A) || A <- Args].
 
+attribute_farity_map(Args) ->
+    [attribute_farity_map_field(A) || A <- Args].
+
+attribute_farity_map_field({map_field_assoc,L,K,V}) ->
+    {map_field_assoc,L,attribute_farity(K),attribute_farity(V)};
+attribute_farity_map_field({map_field_exact,L,K,V}) ->
+    {map_field_exact,L,attribute_farity(K),attribute_farity(V)}.
+
 -spec error_bad_decl(integer(), attributes()) -> no_return().
 
 error_bad_decl(L, S) ->