diff options
| -rw-r--r-- | lib/compiler/src/core_lint.erl | 6 | ||||
| -rw-r--r-- | lib/compiler/src/sys_core_fold.erl | 10 | ||||
| -rw-r--r-- | lib/compiler/src/v3_core.erl | 4 | ||||
| -rw-r--r-- | lib/compiler/test/receive_SUITE.erl | 8 |
4 files changed, 18 insertions, 10 deletions
diff --git a/lib/compiler/src/core_lint.erl b/lib/compiler/src/core_lint.erl index 7d3513c0ba..6e2114be56 100644 --- a/lib/compiler/src/core_lint.erl +++ b/lib/compiler/src/core_lint.erl @@ -353,12 +353,6 @@ expr(#c_case{arg=Arg,clauses=Cs}, Def, Rt, St0) -> Pc = case_patcount(Cs), St1 = body(Arg, Def, Pc, St0), clauses(Cs, Def, Pc, Rt, St1); -expr(#c_receive{clauses=Cs,timeout=#c_literal{val=infinity}, - action=#c_literal{}}, - Def, Rt, St) -> - %% If the timeout is 'infinity', the after code can never - %% be reached. We don't care if the return count is wrong. - clauses(Cs, Def, 1, Rt, St); expr(#c_receive{clauses=Cs,timeout=T,action=A}, Def, Rt, St0) -> St1 = expr(T, Def, 1, St0), St2 = body(A, Def, Rt, St1), diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl index df880ff784..15ced196a7 100644 --- a/lib/compiler/src/sys_core_fold.erl +++ b/lib/compiler/src/sys_core_fold.erl @@ -2622,9 +2622,13 @@ delay_build_expr_1(#c_receive{clauses=Cs0, timeout=Timeout, action=A0}=Rec, TypeSig) -> Cs = delay_build_cs(Cs0, TypeSig), - A = case Timeout of - #c_literal{val=infinity} -> A0; - _ -> delay_build_expr(A0, TypeSig) + A = case {Timeout,A0} of + {#c_literal{val=infinity},#c_literal{}} -> + {_Type,Arity} = TypeSig, + Es = lists:duplicate(Arity, A0), + core_lib:make_values(Es); + _ -> + delay_build_expr(A0, TypeSig) end, Rec#c_receive{clauses=Cs,action=A}; delay_build_expr_1(#c_seq{body=B0}=Seq, TypeSig) -> diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index 20cb3343fb..66ddf6fcb9 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -2462,9 +2462,11 @@ cexpr(#icase{anno=A,args=Largs,clauses=Lcs,fc=Lfc}, As, St0) -> cexpr(#ireceive1{anno=A,clauses=Lcs}, As, St0) -> Exp = intersection(A#a.ns, As), %Exports {Ccs,St1} = cclauses(Lcs, Exp, St0), + True = #c_literal{val=true}, + Action = core_lib:make_values(lists:duplicate(1+length(Exp), True)), {#c_receive{anno=A#a.anno, clauses=Ccs, - timeout=#c_literal{val=infinity},action=#c_literal{val=true}}, + timeout=#c_literal{val=infinity},action=Action}, Exp,A#a.us,St1}; cexpr(#ireceive2{anno=A,clauses=Lcs,timeout=Lto,action=Les}, As, St0) -> Exp = intersection(A#a.ns, As), %Exports diff --git a/lib/compiler/test/receive_SUITE.erl b/lib/compiler/test/receive_SUITE.erl index 8304672558..3001bb421b 100644 --- a/lib/compiler/test/receive_SUITE.erl +++ b/lib/compiler/test/receive_SUITE.erl @@ -265,6 +265,10 @@ export(Config) when is_list(Config) -> self() ! {result,Ref,42}, 42 = export_1(Ref), {error,timeout} = export_1(Ref), + + self() ! {result,Ref}, + {ok,Ref} = export_2(), + ok. export_1(Reference) -> @@ -281,6 +285,10 @@ export_1(Reference) -> id({build,self()}), Result. +export_2() -> + receive {result,Result} -> ok end, + {ok,Result}. + wait(Config) when is_list(Config) -> self() ! <<42>>, <<42>> = wait_1(r, 1, 2), |