diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_typesig.erl | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/dialyzer/src/dialyzer_typesig.erl b/lib/dialyzer/src/dialyzer_typesig.erl index f68472d2fc..c45615d670 100644 --- a/lib/dialyzer/src/dialyzer_typesig.erl +++ b/lib/dialyzer/src/dialyzer_typesig.erl @@ -1406,9 +1406,13 @@ get_bif_constr({erlang, 'or', 2}, Dst, [Arg1, Arg2] = Args, _State) -> ArgV1 = mk_fun_var(ArgFun(Arg2), [Arg2, Dst]), ArgV2 = mk_fun_var(ArgFun(Arg1), [Arg1, Dst]), DstV = mk_fun_var(DstFun, Args), - Disj = mk_disj_constraint_list([mk_constraint(Arg1, sub, True), - mk_constraint(Arg2, sub, True), - mk_constraint(Dst, sub, False)]), + F = fun(A) -> + try [mk_constraint(A, sub, True)] + catch throw:error -> [] + end + end, + Constrs = F(Arg1) ++ F(Arg2), + Disj = mk_disj_constraint_list([mk_constraint(Dst, sub, False)|Constrs]), mk_conj_constraint_list([mk_constraint(Dst, sub, DstV), mk_constraint(Arg1, sub, ArgV1), mk_constraint(Arg2, sub, ArgV2), |