diff options
Diffstat (limited to 'lib/dialyzer')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_dep.erl | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/lib/dialyzer/src/dialyzer_dep.erl b/lib/dialyzer/src/dialyzer_dep.erl index 6678037bc0..490c431488 100644 --- a/lib/dialyzer/src/dialyzer_dep.erl +++ b/lib/dialyzer/src/dialyzer_dep.erl @@ -79,22 +79,26 @@ traverse(Tree, Out, State, CurrentFun) -> apply -> Op = cerl:apply_op(Tree), Args = cerl:apply_args(Tree), - %% Op is always a variable and should not be marked as escaping - %% based on its use. case var =:= cerl:type(Op) of - false -> erlang:error({apply_op_not_a_variable, cerl:type(Op)}); - true -> ok - end, - OpFuns = case map__lookup(cerl_trees:get_label(Op), Out) of - none -> output(none); - {value, OF} -> OF - end, - {ArgFuns, State2} = traverse_list(Args, Out, State, CurrentFun), - State3 = state__add_esc(merge_outs(ArgFuns), State2), - State4 = state__add_deps(CurrentFun, OpFuns, State3), - State5 = state__store_callsite(cerl_trees:get_label(Tree), - OpFuns, length(Args), State4), - {output(set__singleton(external)), State5}; + false -> + %% We have discovered an error here, but we ignore it and let + %% later passes handle it; we do not modify the dependencies. + %% erlang:error({apply_op_not_a_variable, cerl:type(Op)}); + {output(none), State}; + true -> + %% Op is a variable and should not be marked as escaping + %% based on its use. + OpFuns = case map__lookup(cerl_trees:get_label(Op), Out) of + none -> output(none); + {value, OF} -> OF + end, + {ArgFuns, State2} = traverse_list(Args, Out, State, CurrentFun), + State3 = state__add_esc(merge_outs(ArgFuns), State2), + State4 = state__add_deps(CurrentFun, OpFuns, State3), + State5 = state__store_callsite(cerl_trees:get_label(Tree), + OpFuns, length(Args), State4), + {output(set__singleton(external)), State5} + end; binary -> {output(none), State}; 'case' -> |