diff options
| -rw-r--r-- | erts/emulator/test/map_SUITE.erl | 10 | ||||
| -rw-r--r-- | lib/compiler/src/v3_codegen.erl | 138 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel.erl | 92 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel.hrl | 4 | ||||
| -rw-r--r-- | lib/compiler/src/v3_kernel_pp.erl | 17 | ||||
| -rw-r--r-- | lib/compiler/src/v3_life.erl | 14 | ||||
| -rw-r--r-- | lib/compiler/test/Makefile | 1 | ||||
| -rw-r--r-- | lib/compiler/test/map_SUITE.erl | 39 |
8 files changed, 165 insertions, 150 deletions
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl index 31c1486f1c..8cc5621181 100644 --- a/erts/emulator/test/map_SUITE.erl +++ b/erts/emulator/test/map_SUITE.erl @@ -254,7 +254,15 @@ t_update_exact(Config) when is_list(Config) -> M2 = M0#{3.0:=new}, #{1:=a,2:=b,3.0:=new,4:=d,5:=e} = M2, M2 = M0#{3.0=>wrong,3.0:=new}, - M2 = M0#{3=>wrong,3.0:=new}, + true = M2 =/= M0#{3=>right,3.0:=new}, + #{ 3 := right, 3.0 := new } = M0#{3=>right,3.0:=new}, + + M3 = id(#{ 1 => val}), + #{1 := update2,1.0 := new_val4} = M3#{ + 1.0 => new_val1, 1 := update, 1=> update3, + 1 := update2, 1.0 := new_val2, 1.0 => new_val3, + 1.0 => new_val4 }, + %% Errors cases. {'EXIT',{badarg,_}} = (catch M0#{nonexisting:=val}), diff --git a/lib/compiler/src/v3_codegen.erl b/lib/compiler/src/v3_codegen.erl index c8735a76e8..4d155c0fd0 100644 --- a/lib/compiler/src/v3_codegen.erl +++ b/lib/compiler/src/v3_codegen.erl @@ -459,7 +459,7 @@ basic_block([Le|Les], Acc) -> %% sets that may garbage collect are not allowed in basic blocks. collect_block({set,_,{binary,_}}) -> no_block; -collect_block({set,_,{map,_,_}}) -> no_block; +collect_block({set,_,{map,_,_,_}}) -> no_block; collect_block({set,_,_}) -> include; collect_block({call,{var,_}=Var,As,_Rs}) -> {block_end,As++[Var]}; collect_block({call,Func,As,_Rs}) -> {block_end,As++func_vars(Func)}; @@ -928,7 +928,7 @@ select_extract_tuple(Src, Vs, I, Vdb, Bef, St) -> select_map(Scs, V, Tf, Vf, Bef, St0) -> Reg = fetch_var(V, Bef), {Is,Aft,St1} = - match_fmf(fun(#l{ke={val_clause,{map,Es},B},i=I,vdb=Vdb}, Fail, St1) -> + match_fmf(fun(#l{ke={val_clause,{map,_,Es},B},i=I,vdb=Vdb}, Fail, St1) -> select_map_val(V, Es, B, Fail, I, Vdb, Bef, St1) end, Vf, St0, Scs), {[{test,is_map,{f,Tf},[Reg]}|Is],Aft,St1}. @@ -1488,55 +1488,35 @@ set_cg([{var,R}], {binary,Segs}, Le, Vdb, Bef, %% Now generate the complete code for constructing the binary. Code = cg_binary(PutCode, Target, Temp, Fail, MaxRegs, Le#l.a), {Sis++Code,Aft,St}; -set_cg([{var,R}], {map,SrcMap,Es0}, Le, Vdb, Bef, +set_cg([{var,R}], {map,Op,Map,Es}, Le, Vdb, Bef, #cg{in_catch=InCatch,bfail=Bfail}=St) -> + Fail = {f,Bfail}, {Sis,Int0} = case InCatch of true -> adjust_stack(Bef, Le#l.i, Le#l.i+1, Vdb); false -> {[],Bef} end, + SrcReg = cg_reg_arg(Map,Int0), Line = line(Le#l.a), - SrcReg = case SrcMap of - {var,SrcVar} -> fetch_var(SrcVar, Int0); - _ -> SrcMap - end, - {Assoc,Exact} = - try - cg_map_pairs(Es0) - catch - throw:badarg -> - {[],[{{float,0.0},{atom,badarg}}, - {{integer,0},{atom,badarg}}]} - end, - F = fun ({K,{var,V}}) -> [K,fetch_var(V, Int0)]; - ({K,E}) -> [K,E] - end, - AssocList = flatmap(F, Assoc), - ExactList = flatmap(F, Exact), - Live0 = max_reg(Bef#sr.reg), - Int1 = clear_dead(Int0, Le#l.i, Vdb), - Aft = Bef#sr{reg=put_reg(R, Int1#sr.reg)}, - Target = fetch_reg(R, Aft#sr.reg), - Code = [Line] ++ - case {AssocList,ExactList} of - {[_|_],[]} -> - [{put_map_assoc,Fail,SrcReg,Target,Live0,{list,AssocList}}]; - {[_|_],[_|_]} -> - Live = case Target of - {x,TargetX} when TargetX =:= Live0 -> - Live0 + 1; - _ -> - Live0 - end, - [{put_map_assoc,Fail,SrcReg,Target,Live0,{list,AssocList}}, - {put_map_exact,Fail,Target,Target,Live,{list,ExactList}}]; - {[],[_|_]} -> - [{put_map_exact,Fail,SrcReg,Target,Live0,{list,ExactList}}]; - {[],[]} -> - [{put_map_assoc,Fail,SrcReg,Target,Live0,{list,[]}}] - end, - {Sis++Code,Aft,St}; + + %% The instruction needs to store keys in term sorted order + %% All keys has to be unique here + Pairs = map_pair_strip_and_termsort(Es), + + %% fetch registers for values to be put into the map + List = flatmap(fun({K,V}) -> [K,cg_reg_arg(V,Int0)] end, Pairs), + + Live = max_reg(Bef#sr.reg), + Int1 = Int0#sr{reg=put_reg(R, Int0#sr.reg)}, + Aft = clear_dead(Int1, Le#l.i, Vdb), + Target = fetch_reg(R, Int1#sr.reg), + + I = case Op of + assoc -> put_map_assoc; + exact -> put_map_exact + end, + {Sis++[Line]++[{I,Fail,SrcReg,Target,Live,{list,List}}],Aft,St}; set_cg([{var,R}], Con, Le, Vdb, Bef, St) -> %% Find a place for the return register first. Int = Bef#sr{reg=put_reg(R, Bef#sr.reg)}, @@ -1549,70 +1529,12 @@ set_cg([{var,R}], Con, Le, Vdb, Bef, St) -> end, {Ais,clear_dead(Int, Le#l.i, Vdb),St}. -%% cg_map_pairs(MapPairs) -> {Assoc,Exact} -%% Assoc = Exact = [{K,V}] -%% -%% Remove multiple assignments to the same key, and return -%% one list key-value list with all keys that may or may not exist -%% (Assoc), and one with keys that must exist (Exact). -%% - -cg_map_pairs(Es0) -> - Es = cg_map_pairs_1(Es0, 0), - R0 = sofs:relation(Es), - R1 = sofs:relation_to_family(R0), - R2 = sofs:to_external(R1), - - %% R2 is now [{KeyValue,[{Order,Op,OriginalKey,Value}]}] - R3 = [begin - %% The value for the last pair determines the value. - {_,_,_,V} = lists:last(Vs), - {Op,{_,SortOrder}=K} = map_pair_op_and_key(Vs), - {Op,{SortOrder,K,V}} - end || {_,Vs} <- R2], - - %% R3 is now [{Op,{Key,Value}}] - R = termsort(R3), - - %% R4 is now sorted with all alloc first in the list, followed by - %% all exact. - {Assoc,Exact} = lists:partition(fun({Op,_}) -> Op =:= assoc end, R), - {[{K,V} || {_,{_,K,V}} <- Assoc], - [{K,V} || {_,{_,K,V}} <- Exact]}. - -cg_map_pairs_1([{map_pair_assoc,{_,Kv}=K,V}|T], Order) -> - [{Kv,{Order,assoc,K,V}}|cg_map_pairs_1(T, Order+1)]; -cg_map_pairs_1([{map_pair_exact,{_,Kv}=K,V}|T], Order) -> - [{Kv,{Order,exact,K,V}}|cg_map_pairs_1(T, Order+1)]; -cg_map_pairs_1([], _) -> []. - -%% map_pair_op_and_key({_,Op,K,_}) -> {Operator,Key} -%% Determine the operator and key to use. Throw a 'badarg' -%% exception if there are contradictory exact updates. - -map_pair_op_and_key(L) -> - case [K || {_,exact,K,_} <- L] of - [K] -> - %% There is a single ':=' operator. Use that key. - {exact,K}; - [K|T] -> - %% There is more than one ':=' operator. All of them - %% must have the same key. - case lists:all(fun(E) -> E =:= K end, T) of - true -> - {exact,K}; - false -> - %% Some keys are different, e.g. 1 and 1.0. - throw(badarg) - end; - [] -> - %% Only '=>' operators. Use the first key in the list. - [{_,assoc,K,_}|_] = L, - {assoc,K} - end. - -termsort(Ls) -> - lists:sort(fun(A,B) -> erts_internal:cmp_term(A,B) < 0 end, Ls). +map_pair_strip_and_termsort(Es) -> + %% format in + %% [{map_pair,K,V}] + %% where K is for example {integer, 1} and we want to sort on 1. + Ls = [{K,V}||{_,K,V}<-Es], + lists:sort(fun({{_,A},_},{{_,B},_}) -> erts_internal:cmp_term(A,B) < 0 end, Ls). %%% %%% Code generation for constructing binaries. @@ -2085,7 +2007,7 @@ load_vars(Vs, Regs) -> foldl(fun ({var,V}, Rs) -> put_reg(V, Rs) end, Regs, Vs). %% put_reg(Val, Regs) -> Regs. -%% find_reg(Val, Regs) -> ok{r{R}} | error. +%% find_reg(Val, Regs) -> {ok,r{R}} | error. %% fetch_reg(Val, Regs) -> r{R}. %% Functions to interface the registers. diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl index 6c8089e61d..bc5ca0314a 100644 --- a/lib/compiler/src/v3_kernel.erl +++ b/lib/compiler/src/v3_kernel.erl @@ -274,8 +274,7 @@ expr(#c_tuple{anno=A,es=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}; + map_split_pairs(A, Var, Ces, Sub, St1); expr(#c_binary{anno=A,segments=Cv}, Sub, St0) -> try atomic_bin(Cv, Sub, St0) of {Kv,Ep,St1} -> @@ -497,15 +496,71 @@ translate_match_fail_1(Anno, As, Sub, #kern{ff=FF}) -> translate_fc(Args) -> [#c_literal{val=function_clause},make_list(Args)]. -%% FIXME: Not completed -map_pairs(Es, Sub, St) -> - foldr(fun - (#c_map_pair{op=#c_literal{val=Op},key=K0,val=V0}, {Kes,Esp,St0}) when - Op =:= assoc; Op =:= exact -> %% assert Op - {K,[],St1} = expr(K0, Sub, St0), - {V,Ep,St2} = atomic(V0, Sub, St1), - {[#k_map_pair{op=Op,key=K,val=V}|Kes],Ep ++ Esp,St2} - end, {[],[],St}, Es). + %{Kes,Ep,St2} = map_pairs(Ces, Sub, St1), +map_split_pairs(A, Var, Ces, Sub, St0) -> + %% two steps + %% 1. force variables + %% 2. remove multiples + Pairs0 = [{Op,K,V} || #c_map_pair{op=#c_literal{val=Op},key=K,val=V} <- Ces], + {Pairs,Esp,St1} = foldr(fun + ({Op,K0,V0}, {Ops,Espi,Sti0}) when Op =:= assoc; Op =:= exact -> + {K,[],Sti1} = expr(K0, Sub, Sti0), + {V,Ep,Sti2} = atomic(V0, Sub, Sti1), + {[{Op,K,V}|Ops],Ep ++ Espi,Sti2} + end, {[],[],St0}, Pairs0), + + case map_group_pairs(Pairs) of + {Assoc,[]} -> + Kes = [#k_map_pair{key=K,val=V}||{_,{assoc,K,V}} <- Assoc], + {#k_map{anno=A,op=assoc,var=Var,es=Kes},Esp,St1}; + {[],Exact} -> + Kes = [#k_map_pair{key=K,val=V}||{_,{exact,K,V}} <- Exact], + {#k_map{anno=A,op=exact,var=Var,es=Kes},Esp,St1}; + {Assoc,Exact} -> + Kes1 = [#k_map_pair{key=K,val=V}||{_,{assoc,K,V}} <- Assoc], + {Mvar,Em,St2} = force_atomic(#k_map{anno=A,op=assoc,var=Var,es=Kes1},St1), + Kes2 = [#k_map_pair{key=K,val=V}||{_,{exact,K,V}} <- Exact], + {#k_map{anno=A,op=exact,var=Mvar,es=Kes2},Em ++ Esp,St2} + + end. + +%% Group map by Assoc operations and Exact operations + +map_group_pairs(Es) -> + Groups = dict:to_list(map_group_pairs(Es,dict:new())), + partition(fun({_,{Op,_,_}}) -> Op =:= assoc end, Groups). + +map_group_pairs([{assoc,K,V}|Es0],Used0) -> + Used1 = case map_key_is_used(K,Used0) of + {ok, {assoc,_,_}} -> map_key_set_used(K,{assoc,K,V},Used0); + {ok, {exact,_,_}} -> map_key_set_used(K,{exact,K,V},Used0); + _ -> map_key_set_used(K,{assoc,K,V},Used0) + end, + map_group_pairs(Es0,Used1); +map_group_pairs([{exact,K,V}|Es0],Used0) -> + Used1 = case map_key_is_used(K,Used0) of + {ok, {assoc,_,_}} -> map_key_set_used(K,{assoc,K,V},Used0); + {ok, {exact,_,_}} -> map_key_set_used(K,{exact,K,V},Used0); + _ -> map_key_set_used(K,{exact,K,V},Used0) + end, + map_group_pairs(Es0,Used1); +map_group_pairs([],Used) -> + Used. + +map_key_set_used(K,How,Used) -> + dict:store(map_key_clean(K),How,Used). + +map_key_is_used(K,Used) -> + dict:find(map_key_clean(K),Used). + +%% Be explicit instead of using set_kanno(K,[]) +map_key_clean(#k_literal{val=V}) -> {k_literal,V}; +map_key_clean(#k_int{val=V}) -> {k_int,V}; +map_key_clean(#k_float{val=V}) -> {k_float,V}; +map_key_clean(#k_atom{val=V}) -> {k_atom,V}; +map_key_clean(#k_nil{}) -> k_nil; +map_key_clean(#k_var{name=V}) -> {k_var,V}. + %% call_type(Module, Function, Arity) -> call | bif | apply | error. %% Classify the call. @@ -664,11 +719,11 @@ pattern(#c_tuple{anno=A,es=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}; + {#k_map{anno=A,op=exact,es=Kes},Osub1,St1}; pattern(#c_map_pair{op=#c_literal{val=exact},anno=A,key=Ck,val=Cv},Isub, Osub0, St0) -> {Kk,Osub1,St1} = pattern(Ck, Isub, Osub0, St0), {Kv,Osub2,St2} = pattern(Cv, Isub, Osub1, St1), - {#k_map_pair{anno=A,op=exact,key=Kk,val=Kv},Osub2,St2}; + {#k_map_pair{anno=A,key=Kk,val=Kv},Osub2,St2}; 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}; @@ -1356,9 +1411,8 @@ new_clauses(Cs0, U, St) -> [S,N|As]; #k_bin_int{next=N} -> [N|As]; - #k_map{es=Es} -> - Vals = [V || - #k_map_pair{op=exact,val=V} <- Es], + #k_map{op=exact,es=Es} -> + Vals = [V || #k_map_pair{val=V} <- Es], Vals ++ As; _Other -> As @@ -1458,9 +1512,9 @@ arg_val(Arg, C) -> _ -> {set_kanno(S, []),U,T,Fs} end; - #k_map{es=Es} -> + #k_map{op=exact,es=Es} -> Keys = [begin - #k_map_pair{op=exact,key=#k_literal{val=Key}} = Pair, + #k_map_pair{key=#k_literal{val=Key}} = Pair, Key end || Pair <- Es], %% multiple keys may have the same name @@ -1876,7 +1930,7 @@ pat_vars(#k_tuple{es=Es}) -> pat_list_vars(Es); pat_vars(#k_map{es=Es}) -> pat_list_vars(Es); -pat_vars(#k_map_pair{op=exact,val=V}) -> +pat_vars(#k_map_pair{val=V}) -> pat_vars(V). pat_list_vars(Ps) -> diff --git a/lib/compiler/src/v3_kernel.hrl b/lib/compiler/src/v3_kernel.hrl index c7886a070d..ab66445f73 100644 --- a/lib/compiler/src/v3_kernel.hrl +++ b/lib/compiler/src/v3_kernel.hrl @@ -38,8 +38,8 @@ -record(k_nil, {anno=[]}). -record(k_tuple, {anno=[],es}). --record(k_map, {anno=[],var,es}). --record(k_map_pair, {anno=[],op,key,val}). +-record(k_map, {anno=[],var,op,es}). +-record(k_map_pair, {anno=[],key,val}). -record(k_cons, {anno=[],hd,tl}). -record(k_binary, {anno=[],segs}). -record(k_bin_seg, {anno=[],size,unit,type,flags,seg,next}). diff --git a/lib/compiler/src/v3_kernel_pp.erl b/lib/compiler/src/v3_kernel_pp.erl index edbd3f74f8..639c6737e2 100644 --- a/lib/compiler/src/v3_kernel_pp.erl +++ b/lib/compiler/src/v3_kernel_pp.erl @@ -110,15 +110,18 @@ format_1(#k_map{var=#k_var{}=Var,es=Es}, Ctxt) -> " | ",format_1(Var, Ctxt), $},$~ ]; -format_1(#k_map{es=Es}, Ctxt) -> - [$~,${, +format_1(#k_map{op=assoc,es=Es}, Ctxt) -> + ["~{", format_hseq(Es, ",", ctxt_bump_indent(Ctxt, 1), fun format/2), - $},$~ + "}~" + ]; +format_1(#k_map{op=exact,es=Es}, Ctxt) -> + ["::{", + format_hseq(Es, ",", ctxt_bump_indent(Ctxt, 1), fun format/2), + "}::" ]; -format_1(#k_map_pair{op=assoc,key=K,val=V}, Ctxt) -> - ["~<",format(K, Ctxt),",",format(V, Ctxt),">"]; -format_1(#k_map_pair{op=exact,key=K,val=V}, Ctxt) -> - ["::<",format(K, Ctxt),",",format(V, Ctxt),">"]; +format_1(#k_map_pair{key=K,val=V}, Ctxt) -> + ["<",format(K, Ctxt),",",format(V, Ctxt),">"]; format_1(#k_binary{segs=S}, Ctxt) -> ["#<",format(S, ctxt_bump_indent(Ctxt, 2)),">#"]; format_1(#k_bin_seg{next=Next}=S, Ctxt) -> diff --git a/lib/compiler/src/v3_life.erl b/lib/compiler/src/v3_life.erl index ae928e955c..c4f54a7970 100644 --- a/lib/compiler/src/v3_life.erl +++ b/lib/compiler/src/v3_life.erl @@ -367,12 +367,10 @@ literal(#k_bin_end{}, Ctxt) -> {bin_end,Ctxt}; literal(#k_tuple{es=Es}, Ctxt) -> {tuple,literal_list(Es, Ctxt)}; -literal(#k_map{var=Var,es=Es}, Ctxt) -> - {map,literal(Var, Ctxt),literal_list(Es, Ctxt)}; -literal(#k_map_pair{op=assoc,key=K,val=V}, Ctxt) -> - {map_pair_assoc,literal(K, Ctxt),literal(V, Ctxt)}; -literal(#k_map_pair{op=exact,key=K,val=V}, Ctxt) -> - {map_pair_exact,literal(K, Ctxt),literal(V, Ctxt)}; +literal(#k_map{op=Op,var=Var,es=Es}, Ctxt) -> + {map,Op,literal(Var, Ctxt),literal_list(Es, Ctxt)}; +literal(#k_map_pair{key=K,val=V}, Ctxt) -> + {map_pair,literal(K, Ctxt),literal(V, Ctxt)}; literal(#k_literal{val=V}, _Ctxt) -> {literal,V}. @@ -402,8 +400,8 @@ literal2(#k_bin_end{}, Ctxt) -> {bin_end,Ctxt}; literal2(#k_tuple{es=Es}, Ctxt) -> {tuple,literal_list2(Es, Ctxt)}; -literal2(#k_map{es=Es}, Ctxt) -> - {map,literal_list2(Es, Ctxt)}; +literal2(#k_map{op=Op,es=Es}, Ctxt) -> + {map,Op,literal_list2(Es, Ctxt)}; literal2(#k_map_pair{key=K,val=V}, Ctxt) -> {map_pair,literal2(K, Ctxt),literal2(V, Ctxt)}. diff --git a/lib/compiler/test/Makefile b/lib/compiler/test/Makefile index 0a637a07cd..39c9fea5d9 100644 --- a/lib/compiler/test/Makefile +++ b/lib/compiler/test/Makefile @@ -48,6 +48,7 @@ NO_OPT= \ fun \ guard \ lc \ + map \ match \ misc \ num_bif \ diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl index dc880a7a9d..bd514c60d0 100644 --- a/lib/compiler/test/map_SUITE.erl +++ b/lib/compiler/test/map_SUITE.erl @@ -38,10 +38,10 @@ %% not covered in 17.0-rc1 t_build_and_match_over_alloc/1, t_build_and_match_empty_val/1, - t_build_and_match_val/1 + t_build_and_match_val/1, %% errors in 17.0-rc1 - + t_update_values/1 ]). suite() -> []. @@ -62,10 +62,10 @@ all() -> [ %% not covered in 17.0-rc1 t_build_and_match_over_alloc, t_build_and_match_empty_val, - t_build_and_match_val + t_build_and_match_val, %% errors in 17.0-rc1 - + t_update_values ]. groups() -> []. @@ -212,7 +212,14 @@ t_update_exact(Config) when is_list(Config) -> M2 = M0#{3.0:=new}, #{1:=a,2:=b,3.0:=new,4:=d,5:=e} = M2, M2 = M0#{3.0=>wrong,3.0:=new}, - M2 = M0#{3=>wrong,3.0:=new}, + true = M2 =/= M0#{3=>right,3.0:=new}, + #{ 3 := right, 3.0 := new } = M0#{3=>right,3.0:=new}, + + M3 = id(#{ 1 => val}), + #{1 := update2,1.0 := new_val4} = M3#{ + 1.0 => new_val1, 1 := update, 1=> update3, + 1 := update2, 1.0 := new_val2, 1.0 => new_val3, + 1.0 => new_val4 }, %% Errors cases. {'EXIT',{badarg,_}} = (catch ((id(nil))#{ a := b })), @@ -220,9 +227,31 @@ t_update_exact(Config) when is_list(Config) -> {'EXIT',{badarg,_}} = (catch M0#{1.0:=v,1.0=>v2}), {'EXIT',{badarg,_}} = (catch M0#{42.0:=v,42:=v2}), {'EXIT',{badarg,_}} = (catch M0#{42=>v1,42.0:=v2,42:=v3}), + ok. +t_update_values(Config) when is_list(Config) -> + V0 = id(1337), + M0 = #{ a => 1, val => V0}, + V1 = get_val(M0), + M1 = M0#{ val := [V0,V1], "wazzup" => 42 }, + [1337, {some_val, 1337}] = get_val(M1), + + N = 110, + List = [{[I,1,2,3,I],{1,2,3,"wat",I}}|| I <- lists:seq(1,N)], + + {_,_,#{val2 := {1,2,3,"wat",N}, val1 := [N,1,2,3,N]}} = lists:foldl(fun + ({V2,V3},{Old2,Old3,Mi}) -> + ok = check_val(Mi,Old2,Old3), + #{ val1 := Old2, val2 := Old3 } = Mi, + {V2,V3, Mi#{ val1 := id(V2), val2 := V1, val2 => id(V3)}} + end, {none, none, #{val1=>none,val2=>none}},List), ok. +check_val(#{val1:=V1, val2:=V2},V1,V2) -> ok. + +get_val(#{ "wazzup" := _, val := V}) -> V; +get_val(#{ val := V }) -> {some_val, V}. + t_guard_bifs(Config) when is_list(Config) -> true = map_guard_head(#{a=>1}), false = map_guard_head([]), |