diff options
| -rw-r--r-- | lib/compiler/src/v3_codegen.erl | 6 | ||||
| -rw-r--r-- | lib/compiler/test/map_SUITE.erl | 3 |
2 files changed, 8 insertions, 1 deletions
diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl index e00ee1f3ad..f1331d1fe7 100644 --- a/lib/compiler/src/v3_codegen.erl +++ b/lib/compiler/src/v3_codegen.erl @@ -1551,7 +1551,11 @@ map_pair_strip_and_termsort(Es) -> %% [{map_pair,K,V}] %% where K is for example {integer, 1} and we want to sort on 1. Ls = [{K,V}||{_,K,V}<-Es], - lists:sort(fun({{_,A},_},{{_,B},_}) -> erts_internal:cmp_term(A,B) < 0 end, Ls). + lists:sort(fun ({{_,A},_}, {{_,B},_}) -> erts_internal:cmp_term(A,B) =< 0; + ({nil,_}, {{_,B},_}) -> [] =< B; + ({{_,A},_}, {nil,_}) -> A =< []; + ({nil,_}, {nil,_}) -> true + end, Ls). %%% %%% Code generation for constructing binaries. diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl index 01c146507d..59d70bb221 100644 --- a/lib/compiler/test/map_SUITE.erl +++ b/lib/compiler/test/map_SUITE.erl @@ -107,6 +107,9 @@ t_build_and_match_literals(Config) when is_list(Config) -> M = #{ map_1:=#{ map_2:=#{value_3 := third}, value_2:= second}, value_1:=first} = id(#{ map_1=>#{ map_2=>#{value_3 => third}, value_2=> second}, value_1=>first}), + %% nil key + #{[]:=ok,1:=2} = id(#{[]=>ok,1=>2}), + %% error case {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3,x:=2} = id(#{x=>3}))), {'EXIT',{{badmatch,_},_}} = (catch (#{x:=2} = id(#{x=>3}))), |