diff options
Diffstat (limited to 'lib/compiler/src/v3_core.erl')
| -rw-r--r-- | lib/compiler/src/v3_core.erl | 68 |
1 files changed, 48 insertions, 20 deletions
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index 33f5015e0b..321cf7af1c 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -92,7 +92,7 @@ -record(icase, {anno=#a{},args,clauses,fc}). -record(icatch, {anno=#a{},body}). -record(iclause, {anno=#a{},pats,pguard=[],guard,body}). --record(ifun, {anno=#a{},id,vars,clauses,fc}). +-record(ifun, {anno=#a{},id,vars,clauses,fc,name=unnamed}). -record(iletrec, {anno=#a{},defs,body}). -record(imatch, {anno=#a{},pat,guard=[],arg,fc}). -record(iprimop, {anno=#a{},name,args}). @@ -587,7 +587,11 @@ expr({'fun',L,{function,M,F,A}}, St0) -> name=#c_literal{val=make_fun}, args=As},Aps,St1}; expr({'fun',L,{clauses,Cs},Id}, St) -> - fun_tq(Id, Cs, L, St); + fun_tq(Id, Cs, L, St, unnamed); +expr({named_fun,L,'_',Cs,Id}, St) -> + fun_tq(Id, Cs, L, St, unnamed); +expr({named_fun,L,Name,Cs,{Index,Uniq,_Fname}}, St) -> + fun_tq({Index,Uniq,Name}, Cs, L, St, {named, Name}); expr({call,L,{remote,_,M,F},As0}, #core{wanted=Wanted}=St0) -> {[M1,F1|As1],Aps,St1} = safe_list([M,F|As0], St0), Lanno = lineno_anno(L, St1), @@ -842,9 +846,9 @@ bitstr({bin_element,_,E0,Size0,[Type,{unit,Unit}|Flags]}, St0) -> flags=#c_literal{val=Flags}}, Eps ++ Eps2,St2}. -%% fun_tq(Id, [Clauses], Line, State) -> {Fun,[PreExp],State}. +%% fun_tq(Id, [Clauses], Line, State, NameInfo) -> {Fun,[PreExp],State}. -fun_tq({_,_,Name}=Id, Cs0, L, St0) -> +fun_tq({_,_,Name}=Id, Cs0, L, St0, NameInfo) -> Arity = clause_arity(hd(Cs0)), {Cs1,St1} = clauses(Cs0, St0), {Args,St2} = new_vars(Arity, St1), @@ -853,7 +857,7 @@ fun_tq({_,_,Name}=Id, Cs0, L, St0) -> Fc = function_clause(Ps, Anno, {Name,Arity}), Fun = #ifun{anno=#a{anno=Anno}, id=[{id,Id}], %We KNOW! - vars=Args,clauses=Cs1,fc=Fc}, + vars=Args,clauses=Cs1,fc=Fc,name=NameInfo}, {Fun,[],St3}. %% lc_tq(Line, Exp, [Qualifier], Mc, State) -> {LetRec,[PreExp],State}. @@ -1711,13 +1715,18 @@ uexpr(#icase{anno=A,args=As0,clauses=Cs0,fc=Fc0}, Ks, St0) -> Used = union(used_in_any(As1), used_in_any(Cs1)), New = new_in_all(Cs1), {#icase{anno=A#a{us=Used,ns=New},args=As1,clauses=Cs1,fc=Fc1},St3}; -uexpr(#ifun{anno=A,id=Id,vars=As,clauses=Cs0,fc=Fc0}, Ks0, St0) -> +uexpr(#ifun{anno=A0,id=Id,vars=As,clauses=Cs0,fc=Fc0,name=Name}, Ks0, St0) -> Avs = lit_list_vars(As), - Ks1 = union(Avs, Ks0), - {Cs1,St1} = ufun_clauses(Cs0, Ks1, St0), - {Fc1,St2} = ufun_clause(Fc0, Ks1, St1), - Used = subtract(intersection(used_in_any(Cs1), Ks0), Avs), - {#ifun{anno=A#a{us=Used,ns=[]},id=Id,vars=As,clauses=Cs1,fc=Fc1},St2}; + Ks1 = case Name of + unnamed -> Ks0; + {named,FName} -> union(subtract([FName], Avs), Ks0) + end, + Ks2 = union(Avs, Ks1), + {Cs1,St1} = ufun_clauses(Cs0, Ks2, St0), + {Fc1,St2} = ufun_clause(Fc0, Ks2, St1), + Used = subtract(intersection(used_in_any(Cs1), Ks1), Avs), + A1 = A0#a{us=Used,ns=[]}, + {#ifun{anno=A1,id=Id,vars=As,clauses=Cs1,fc=Fc1,name=Name},St2}; uexpr(#iapply{anno=A,op=Op,args=As}, _, St) -> Used = union(lit_vars(Op), lit_list_vars(As)), {#iapply{anno=A#a{us=Used},op=Op,args=As},St}; @@ -2012,15 +2021,24 @@ cexpr(#itry{anno=A,args=La,vars=Vs,body=Lb,evars=Evs,handler=Lh}, As, St0) -> cexpr(#icatch{anno=A,body=Les}, _As, St0) -> {Ces,_Us1,St1} = cexprs(Les, [], St0), %Never export! {#c_catch{body=Ces},[],A#a.us,St1}; -cexpr(#ifun{anno=A,id=Id,vars=Args,clauses=Lcs,fc=Lfc}, _As, St0) -> - {Ccs,St1} = cclauses(Lcs, [], St0), %NEVER export! - {Cfc,St2} = cclause(Lfc, [], St1), - Anno = A#a.anno, - {#c_fun{anno=Id++Anno,vars=Args, - body=#c_case{anno=Anno, - arg=set_anno(core_lib:make_values(Args), Anno), - clauses=Ccs ++ [Cfc]}}, - [],A#a.us,St2}; +cexpr(#ifun{name=unnamed}=Fun, As, St0) -> + cfun(Fun, As, St0); +cexpr(#ifun{anno=#a{us=Us0}=A0,name={named,Name},fc=#iclause{pats=Ps}}=Fun0, + As, St0) -> + case is_element(Name, Us0) of + false -> + cfun(Fun0, As, St0); + true -> + A1 = A0#a{us=del_element(Name, Us0)}, + Fun1 = Fun0#ifun{anno=A1}, + {#c_fun{body=Body}=CFun0,[],Us1,St1} = cfun(Fun1, As, St0), + RecVar = #c_var{name={Name,length(Ps)}}, + Let = #c_let{vars=[#c_var{name=Name}],arg=RecVar,body=Body}, + CFun1 = CFun0#c_fun{body=Let}, + Letrec = #c_letrec{defs=[{RecVar,CFun1}], + body=RecVar}, + {Letrec,[],Us1,St1} + end; cexpr(#iapply{anno=A,op=Op,args=Args}, _As, St) -> {#c_apply{anno=A#a.anno,op=Op,args=Args},[],A#a.us,St}; cexpr(#icall{anno=A,module=Mod,name=Name,args=Args}, _As, St) -> @@ -2047,6 +2065,16 @@ cexpr(Lit, _As, St) -> %%Vs = lit_vars(Lit), {set_anno(Lit, Anno#a.anno),[],Vs,St}. +cfun(#ifun{anno=A,id=Id,vars=Args,clauses=Lcs,fc=Lfc}, _As, St0) -> + {Ccs,St1} = cclauses(Lcs, [], St0), %NEVER export! + {Cfc,St2} = cclause(Lfc, [], St1), + Anno = A#a.anno, + {#c_fun{anno=Id++Anno,vars=Args, + body=#c_case{anno=Anno, + arg=set_anno(core_lib:make_values(Args), Anno), + clauses=Ccs ++ [Cfc]}}, + [],A#a.us,St2}. + %% lit_vars(Literal) -> [Var]. lit_vars(Lit) -> lit_vars(Lit, []). |