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-rw-r--r--lib/stdlib/src/erl_parse.yrl14
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl
index a626d98ee4..767b620871 100644
--- a/lib/stdlib/src/erl_parse.yrl
+++ b/lib/stdlib/src/erl_parse.yrl
@@ -765,6 +765,9 @@ 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.
@@ -772,6 +775,10 @@ attribute_farity(Other) -> Other.
attribute_farity_list(Args) ->
[attribute_farity(A) || A <- Args].
+%% It is not meaningful to have farity keys.
+attribute_farity_map(Args) ->
+ [{Op,L,K,attribute_farity(V)} || {Op,L,K,V} <- Args].
+
-spec error_bad_decl(integer(), attributes()) -> no_return().
error_bad_decl(L, S) ->
@@ -966,7 +973,9 @@ abstract([H|T], L, none=E) ->
abstract(List, L, E) when is_list(List) ->
abstract_list(List, [], L, E);
abstract(Tuple, L, E) when is_tuple(Tuple) ->
- {tuple,L,abstract_tuple_list(tuple_to_list(Tuple), L, E)}.
+ {tuple,L,abstract_tuple_list(tuple_to_list(Tuple), L, E)};
+abstract(Map, L, E) when is_map(Map) ->
+ {map,L,abstract_map_fields(maps:to_list(Map),L,E)}.
abstract_list([H|T], String, L, E) ->
case is_integer(H) andalso H >= 0 andalso E(H) of
@@ -991,6 +1000,9 @@ abstract_tuple_list([H|T], L, E) ->
abstract_tuple_list([], _L, _E) ->
[].
+abstract_map_fields(Fs,L,E) ->
+ [{map_field_assoc,L,abstract(K,L,E),abstract(V,L,E)}||{K,V}<-Fs].
+
abstract_byte(Byte, L) when is_integer(Byte) ->
{bin_element, L, {integer, L, Byte}, default, default};
abstract_byte(Bits, L) ->