diff options
Diffstat (limited to 'lib/compiler/src/v3_kernel.erl')
| -rw-r--r-- | lib/compiler/src/v3_kernel.erl | 60 |
1 files changed, 56 insertions, 4 deletions
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index 65f1251099..84b3a4e37f 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -272,6 +272,10 @@ expr(#c_cons{anno=A,hd=Ch,tl=Ct}, Sub, St0) -> expr(#c_tuple{anno=A,es=Ces}, Sub, St0) -> {Kes,Ep,St1} = atomic_list(Ces, Sub, St0), {#k_tuple{anno=A,es=Kes},Ep,St1}; +expr(#c_map{anno=A,var=Var0,es=Ces}, Sub, St0) -> + {Var,[],St1} = expr(Var0, Sub, St0), + {Kes,Ep,St2} = map_pairs(Ces, Sub, St1), + {#k_map{anno=A,var=Var,es=Kes},Ep,St2}; expr(#c_binary{anno=A,segments=Cv}, Sub, St0) -> try atomic_bin(Cv, Sub, St0) of {Kv,Ep,St1} -> @@ -493,6 +497,13 @@ translate_match_fail_1(Anno, As, Sub, #kern{ff=FF}) -> translate_fc(Args) -> [#c_literal{val=function_clause},make_list(Args)]. +map_pairs(Es, Sub, St) -> + foldr(fun(#c_map_pair{key=K0,val=V0}, {Kes,Esp,St0}) -> + {K,[],St1} = expr(K0, Sub, St0), + {V,Ep,St2} = atomic(V0, Sub, St1), + {[#k_map_pair{key=K,val=V}|Kes],Ep ++ Esp,St2} + end, {[],[],St}, Es). + %% call_type(Module, Function, Arity) -> call | bif | apply | error. %% Classify the call. call_type(#c_literal{val=M}, #c_literal{val=F}, Ar) when is_atom(M), is_atom(F) -> @@ -648,6 +659,13 @@ pattern(#c_cons{anno=A,hd=Ch,tl=Ct}, Isub, Osub0, St0) -> pattern(#c_tuple{anno=A,es=Ces}, Isub, Osub0, St0) -> {Kes,Osub1,St1} = pattern_list(Ces, Isub, Osub0, St0), {#k_tuple{anno=A,es=Kes},Osub1,St1}; +pattern(#c_map{anno=A,es=Ces}, Isub, Osub0, St0) -> + {Kes,Osub1,St1} = pattern_list(Ces, Isub, Osub0, St0), + {#k_map{anno=A,es=Kes},Osub1,St1}; +pattern(#c_map_pair{anno=A,key=Kk0,val=Cv},Isub, Osub0, St0) -> + Kk = #k_atom{val=Kk0#c_literal.val}, + {Kv,Osub1,St1} = pattern(Cv, Isub, Osub0, St0), + {#k_map_pair{anno=A,key=Kk,val=Kv},Osub1,St1}; pattern(#c_binary{anno=A,segments=Cv}, Isub, Osub0, St0) -> {Kv,Osub1,St1} = pattern_bin(Cv, Isub, Osub0, St0), {#k_binary{anno=A,segs=Kv},Osub1,St1}; @@ -1015,7 +1033,8 @@ match_con_1([U|_Us] = L, Cs, Def, St0) -> %% Extract clauses for different constructors (types). %%ok = io:format("match_con ~p~n", [Cs]), Ttcs = select_types([k_binary], Cs) ++ select_bin_con(Cs) ++ - select_types([k_cons,k_tuple,k_atom,k_float,k_int,k_nil,k_literal], Cs), + select_types([k_cons,k_tuple,k_map,k_atom,k_float,k_int, + k_nil,k_literal], Cs), %%ok = io:format("ttcs = ~p~n", [Ttcs]), {Scs,St1} = mapfoldl(fun ({T,Tcs}, St) -> @@ -1255,6 +1274,8 @@ group_value(k_bin_seg, Cs) -> group_bin_seg(Cs); group_value(k_bin_int, Cs) -> [Cs]; +group_value(k_map, Cs) -> + group_map(Cs); group_value(_, Cs) -> %% group_value(Cs). Cd = foldl(fun (C, Gcs0) -> dict:append(clause_val(C), C, Gcs0) end, @@ -1267,6 +1288,12 @@ group_bin_seg([C1|Cs]) -> [[C1|More]|group_bin_seg(Rest)]; group_bin_seg([]) -> []. +group_map([C1|Cs]) -> + V1 = clause_val(C1), + {More,Rest} = splitwith(fun (C) -> clause_val(C) =:= V1 end, Cs), + [[C1|More]|group_map(Rest)]; +group_map([]) -> []. + %% Profiling shows that this quadratic implementation account for a big amount %% of the execution time if there are many values. % group_value([C|Cs]) -> @@ -1315,6 +1342,12 @@ get_match(#k_bin_int{}=BinInt, St0) -> get_match(#k_tuple{es=Es}, St0) -> {Mes,St1} = new_vars(length(Es), St0), {#k_tuple{es=Mes},Mes,St1}; +get_match(#k_map{es=Es0}, St0) -> + {Mes,St1} = new_vars(length(Es0), St0), + {Es,_} = mapfoldl(fun(#k_map_pair{}=Pair, [V|Vs]) -> + {Pair#k_map_pair{val=V},Vs} + end, Mes, Es0), + {#k_map{es=Es},Mes,St1}; get_match(M, St) -> {M,[],St}. @@ -1331,7 +1364,11 @@ new_clauses(Cs0, U, St) -> [S,N|As]; #k_bin_int{next=N} -> [N|As]; - _Other -> As + #k_map{es=Es} -> + Vals = [V || #k_map_pair{val=V} <- Es], + Vals ++ As; + _Other -> + As end, Vs = arg_alias(Arg), Osub1 = foldl(fun (#k_var{name=V}, Acc) -> @@ -1406,6 +1443,7 @@ arg_con(Arg) -> #k_nil{} -> k_nil; #k_cons{} -> k_cons; #k_tuple{} -> k_tuple; + #k_map{} -> k_map; #k_binary{} -> k_binary; #k_bin_end{} -> k_bin_end; #k_bin_seg{} -> k_bin_seg; @@ -1426,7 +1464,13 @@ arg_val(Arg, C) -> {#k_var{name=get_vsub(V, Isub)},U,T,Fs}; _ -> {set_kanno(S, []),U,T,Fs} - end + end; + #k_map{es=Es} -> + Keys = [begin + #k_map_pair{key=#k_atom{val=Key}} = Pair, + Key + end || Pair <- Es], + ordsets:from_list(Keys) end. %% ubody_used_vars(Expr, State) -> [UsedVar] @@ -1795,6 +1839,10 @@ lit_vars(#k_atom{}) -> []; lit_vars(#k_nil{}) -> []; lit_vars(#k_cons{hd=H,tl=T}) -> union(lit_vars(H), lit_vars(T)); +lit_vars(#k_map{var=Var,es=Es}) -> + lit_list_vars([Var|Es]); +lit_vars(#k_map_pair{key=K,val=V}) -> + union(lit_vars(K), lit_vars(V)); lit_vars(#k_binary{segs=V}) -> lit_vars(V); lit_vars(#k_bin_end{}) -> []; lit_vars(#k_bin_seg{size=Size,seg=S,next=N}) -> @@ -1830,7 +1878,11 @@ pat_vars(#k_bin_int{size=Size}) -> {U,[]}; pat_vars(#k_bin_end{}) -> {[],[]}; pat_vars(#k_tuple{es=Es}) -> - pat_list_vars(Es). + pat_list_vars(Es); +pat_vars(#k_map{es=Es}) -> + pat_list_vars(Es); +pat_vars(#k_map_pair{val=V}) -> + pat_vars(V). pat_list_vars(Ps) -> foldl(fun (P, {Used0,New0}) -> |