diff options
Diffstat (limited to 'lib/compiler')
| -rw-r--r-- | lib/compiler/src/v3_core.erl | 7 | ||||
| -rw-r--r-- | lib/compiler/test/lc_SUITE.erl | 8 |
2 files changed, 11 insertions, 4 deletions
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index 9c9941d039..3d17557e01 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -1782,13 +1782,16 @@ uexpr(#iletrec{anno=A,defs=Fs0,body=B0}, Ks, St0) -> {B1,St2} = uexprs(B0, Ks, St1), Used = used_in_any(map(fun ({_,F}) -> F end, Fs1) ++ B1), {#iletrec{anno=A#a{us=Used,ns=[]},defs=Fs1,body=B1},St2}; -uexpr(#icase{anno=A,args=As0,clauses=Cs0,fc=Fc0}, Ks, St0) -> +uexpr(#icase{anno=#a{anno=Anno}=A,args=As0,clauses=Cs0,fc=Fc0}, Ks, St0) -> %% As0 will never generate new variables. {As1,St1} = uexpr_list(As0, Ks, St0), {Cs1,St2} = uclauses(Cs0, Ks, St1), {Fc1,St3} = uclause(Fc0, Ks, St2), Used = union(used_in_any(As1), used_in_any(Cs1)), - New = new_in_all(Cs1), + New = case member(list_comprehension, Anno) of + true -> []; + false -> new_in_all(Cs1) + end, {#icase{anno=A#a{us=Used,ns=New},args=As1,clauses=Cs1,fc=Fc1},St3}; uexpr(#ifun{anno=A0,id=Id,vars=As,clauses=Cs0,fc=Fc0,name=Name}, Ks0, St0) -> Avs = lit_list_vars(As), diff --git a/lib/compiler/test/lc_SUITE.erl b/lib/compiler/test/lc_SUITE.erl index f5948504b3..398398a397 100644 --- a/lib/compiler/test/lc_SUITE.erl +++ b/lib/compiler/test/lc_SUITE.erl @@ -23,7 +23,7 @@ init_per_group/2,end_per_group/2, init_per_testcase/2,end_per_testcase/2, basic/1,deeply_nested/1,no_generator/1, - empty_generator/1]). + empty_generator/1,no_export/1]). -include_lib("test_server/include/test_server.hrl"). @@ -31,7 +31,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> test_lib:recompile(?MODULE), - [basic, deeply_nested, no_generator, empty_generator]. + [basic, deeply_nested, no_generator, empty_generator, no_export]. groups() -> []. @@ -177,6 +177,10 @@ empty_generator(Config) when is_list(Config) -> ?line [] = [X || {X} <- [], (false or (X/0 > 3))], ok. +no_export(Config) when is_list(Config) -> + [] = [ _X = a || false ] ++ [ _X = a || false ], + ok. + id(I) -> I. fc(Args, {'EXIT',{function_clause,[{?MODULE,_,Args,_}|_]}}) -> ok; |