diff options
| -rw-r--r-- | lib/compiler/src/sys_core_fold.erl | 2 | ||||
| -rw-r--r-- | lib/compiler/test/core_fold_SUITE.erl | 18 |
2 files changed, 18 insertions, 2 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl index bb3a9c7628..167383a202 100644 --- a/lib/compiler/src/sys_core_fold.erl +++ b/lib/compiler/src/sys_core_fold.erl @@ -214,6 +214,8 @@ opt_guard_try(#c_case{clauses=Cs}=Term) -> Term#c_case{clauses=opt_guard_try_list(Cs)}; opt_guard_try(#c_clause{body=B0}=Term) -> Term#c_clause{body=opt_guard_try(B0)}; +opt_guard_try(#c_let{vars=[],arg=#c_values{es=[]},body=B}) -> + B; opt_guard_try(#c_let{arg=Arg,body=B0}=Term) -> case opt_guard_try(B0) of #c_literal{}=B -> diff --git a/lib/compiler/test/core_fold_SUITE.erl b/lib/compiler/test/core_fold_SUITE.erl index 4fd1f84569..ab7f36abf7 100644 --- a/lib/compiler/test/core_fold_SUITE.erl +++ b/lib/compiler/test/core_fold_SUITE.erl @@ -27,7 +27,8 @@ multiple_aliases/1,redundant_boolean_clauses/1, mixed_matching_clauses/1,unnecessary_building/1, no_no_file/1,configuration/1,supplies/1, - redundant_stack_frame/1,export_from_case/1]). + redundant_stack_frame/1,export_from_case/1, + empty_values/1]). -export([foo/0,foo/1,foo/2,foo/3]). @@ -47,7 +48,8 @@ groups() -> multiple_aliases,redundant_boolean_clauses, mixed_matching_clauses,unnecessary_building, no_no_file,configuration,supplies, - redundant_stack_frame,export_from_case]}]. + redundant_stack_frame,export_from_case, + empty_values]}]. init_per_suite(Config) -> @@ -584,5 +586,17 @@ export_from_case_2(Bool, Rec) -> end, {ok,Result}. +empty_values(_Config) -> + case ?MODULE of + core_fold_inline_SUITE -> + {'EXIT',_} = (catch do_empty_values()); + _ -> + {'EXIT',{function_clause,_}} = (catch do_empty_values()) + end, + ok. + +do_empty_values() when (#{})#{} -> + c. + id(I) -> I. |