diff options
Diffstat (limited to 'lib/compiler/test')
| -rw-r--r-- | lib/compiler/test/map_SUITE.erl | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl index dc880a7a9d..cad6ac6887 100644 --- a/lib/compiler/test/map_SUITE.erl +++ b/lib/compiler/test/map_SUITE.erl @@ -179,6 +179,17 @@ t_update_map_expressions(Config) when is_list(Config) -> #{ a :=42, b:=42, c:=42 } = (maps:from_list([{a,1},{b,2},{c,3}]))#{ a := 42, b := 42, c := 42 }, #{ "a" :=1, "b":=42, "c":=42 } = (maps:from_list([{"a",1},{"b",2}]))#{ "b" := 42, "c" => 42 }, + %% Test need to be in a fun. + %% This tests that let expr optimisation in sys_core_fold + %% covers maps correctly. + F = fun() -> + M0 = id(#{ "a" => [1,2,3] }), + #{ "a" := _ } = M0, + M0#{ "a" := b } + end, + + #{ "a" := b } = F(), + %% Error cases, FIXME: should be 'badmap'? {'EXIT',{badarg,_}} = (catch (id(<<>>))#{ a := 42, b => 2 }), {'EXIT',{badarg,_}} = (catch (id([]))#{ a := 42, b => 2 }), |