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-rw-r--r--lib/compiler/src/beam_bsm.erl1
-rw-r--r--lib/compiler/src/beam_disasm.erl6
-rw-r--r--lib/compiler/src/beam_validator.erl1
-rw-r--r--lib/compiler/src/sys_core_fold.erl51
-rw-r--r--lib/compiler/src/v3_core.erl24
-rw-r--r--lib/compiler/src/v3_kernel.erl13
-rw-r--r--lib/compiler/test/Makefile1
-rw-r--r--lib/compiler/test/bs_match_SUITE.erl15
-rw-r--r--lib/compiler/test/compile_SUITE.erl96
-rw-r--r--lib/compiler/test/compile_SUITE_data/small.erl48
-rw-r--r--lib/compiler/test/compile_SUITE_data/small_maps.erl16
-rw-r--r--lib/compiler/test/core_fold_SUITE.erl36
-rw-r--r--lib/compiler/test/map_SUITE.erl467
-rw-r--r--lib/compiler/test/warnings_SUITE.erl9
14 files changed, 700 insertions, 84 deletions
diff --git a/lib/compiler/src/beam_bsm.erl b/lib/compiler/src/beam_bsm.erl
index fdfcb08125..d54c2a9fde 100644
--- a/lib/compiler/src/beam_bsm.erl
+++ b/lib/compiler/src/beam_bsm.erl
@@ -209,6 +209,7 @@ btb_reaches_match_2([{call,Arity,{f,Lbl}}|Is], Regs, D) ->
btb_reaches_match_2([{apply,Arity}|Is], Regs, D) ->
btb_call(Arity+2, apply, Regs, Is, D);
btb_reaches_match_2([{call_fun,Live}=I|Is], Regs, D) ->
+ btb_ensure_not_used([{x,Live}], I, Regs),
btb_call(Live, I, Regs, Is, D);
btb_reaches_match_2([{make_fun2,_,_,_,Live}|Is], Regs, D) ->
btb_call(Live, make_fun2, Regs, Is, D);
diff --git a/lib/compiler/src/beam_disasm.erl b/lib/compiler/src/beam_disasm.erl
index e0d0d0fd1d..57fdf95677 100644
--- a/lib/compiler/src/beam_disasm.erl
+++ b/lib/compiler/src/beam_disasm.erl
@@ -1134,7 +1134,7 @@ resolve_inst({line,[Index]},_,_,_) ->
{line,resolve_arg(Index)};
%%
-%% R17A.
+%% 17.0
%%
resolve_inst({put_map_assoc,Args},_,_,_) ->
[FLbl,Src,Dst,{u,N},{{z,1},{u,_Len},List0}] = Args,
@@ -1150,6 +1150,10 @@ resolve_inst({is_map,Args0},_,_,_) ->
[FLbl|Args] = resolve_args(Args0),
{test, is_map, FLbl, Args};
+resolve_inst({has_map_field,Args0},_,_,_) ->
+ [FLbl|Args] = resolve_args(Args0),
+ {test,has_map_field,FLbl,Args};
+
resolve_inst({get_map_element,Args},_,_,_) ->
[FLbl,Src,Key,Dst] = resolve_args(Args),
{get_map_element,FLbl,Src,Key,Dst};
diff --git a/lib/compiler/src/beam_validator.erl b/lib/compiler/src/beam_validator.erl
index 97f84da08f..682f7adbc2 100644
--- a/lib/compiler/src/beam_validator.erl
+++ b/lib/compiler/src/beam_validator.erl
@@ -574,6 +574,7 @@ valfun_4({apply,Live}, Vst) ->
valfun_4({apply_last,Live,_}, Vst) ->
tail_call(apply, Live+2, Vst);
valfun_4({call_fun,Live}, Vst) ->
+ validate_src([{x,Live}], Vst),
call('fun', Live+1, Vst);
valfun_4({call,Live,Func}, Vst) ->
call(Func, Live, Vst);
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index 1cdbac5693..e302e2324d 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -305,6 +305,10 @@ expr(#c_let{}=Let, Ctxt, Sub) ->
%% Now recursively re-process the new expression.
expr(Expr, Ctxt, sub_new_preserve_types(Sub))
end;
+expr(#c_letrec{body=#c_var{}}=Letrec, effect, _Sub) ->
+ %% This is named fun in an 'effect' context. Warn and ignore.
+ add_warning(Letrec, useless_building),
+ void();
expr(#c_letrec{defs=Fs0,body=B0}=Letrec, Ctxt, Sub) ->
Fs1 = map(fun ({Name,Fb}) ->
{Name,expr(Fb, {letrec,Ctxt}, Sub)}
@@ -598,6 +602,14 @@ eval_binary_1([#c_bitstr{val=#c_literal{val=Val},size=#c_literal{val=Sz},
error:_ ->
throw(impossible)
end;
+eval_binary_1([#c_bitstr{val=#c_literal{},size=#c_literal{},
+ unit=#c_literal{},type=#c_literal{},
+ flags=#c_cons{}=Flags}=Bitstr|Ss], Acc0) ->
+ case cerl:fold_literal(Flags) of
+ #c_literal{} = Flags1 ->
+ eval_binary_1([Bitstr#c_bitstr{flags=Flags1}|Ss], Acc0);
+ _ -> throw(impossible)
+ end;
eval_binary_1([], Acc) -> Acc;
eval_binary_1(_, _) -> throw(impossible).
@@ -1536,9 +1548,17 @@ map_pair_pattern_list(Ps0, Isub, Osub0) ->
{Ps,{_,Osub}} = mapfoldl(fun map_pair_pattern/2, {Isub,Osub0}, Ps0),
{Ps,Osub}.
-map_pair_pattern(#c_map_pair{op=#c_literal{val=exact},key=K0,val=V0}=Pair, {Isub,Osub0}) ->
- {K,Osub1} = pattern(K0, Isub, Osub0),
- {V,Osub} = pattern(V0, Isub, Osub1),
+map_pair_pattern(#c_map_pair{op=#c_literal{val=exact},key=K0,val=V0}=Pair,{Isub,Osub0}) ->
+ {K,Osub1} = case cerl:type(K0) of
+ binary ->
+ K1 = eval_binary(K0),
+ case cerl:type(K1) of
+ literal -> {K1,Osub0};
+ _ -> pattern(K0,Isub,Osub0)
+ end;
+ _ -> pattern(K0,Isub,Osub0)
+ end,
+ {V,Osub} = pattern(V0,Isub,Osub1),
{Pair#c_map_pair{key=K,val=V},{Isub,Osub}}.
bin_pattern_list(Ps0, Isub, Osub0) ->
@@ -1925,9 +1945,30 @@ eval_case(#c_case{arg=E,clauses=[#c_clause{pats=Ps0,body=B}]}, Sub) ->
true -> cerl:values_es(E);
false -> [E]
end,
- {true,Bs} = cerl_clauses:match_list(Ps0, Es),
+ %% Consider:
+ %%
+ %% case SomeSideEffect() of
+ %% X=Y -> ...
+ %% end
+ %%
+ %% We must not rewrite it to:
+ %%
+ %% let <X,Y> = <SomeSideEffect(),SomeSideEffect()> in ...
+ %%
+ %% because SomeSideEffect() would be called evaluated twice.
+ %%
+ %% Instead we must evaluate the case expression in an outer let
+ %% like this:
+ %%
+ %% let NewVar = SomeSideEffect() in
+ %% let <X,Y> = <NewVar,NewVar> in ...
+ %%
+ Vs = make_vars([], length(Es)),
+ {true,Bs} = cerl_clauses:match_list(Ps0, Vs),
{Ps,As} = unzip(Bs),
- expr(#c_let{vars=Ps,arg=core_lib:make_values(As),body=B}, sub_new(Sub));
+ InnerLet = cerl:c_let(Ps, core_lib:make_values(As), B),
+ Let = cerl:c_let(Vs, E, InnerLet),
+ expr(Let, sub_new(Sub));
eval_case(Case, _) -> Case.
%% case_opt(CaseArg, [Clause]) -> {CaseArg,[Clause]}.
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl
index e30bfa729c..291443f824 100644
--- a/lib/compiler/src/v3_core.erl
+++ b/lib/compiler/src/v3_core.erl
@@ -74,7 +74,7 @@
-export([module/2,format_error/1]).
-import(lists, [reverse/1,reverse/2,map/2,member/2,foldl/3,foldr/3,mapfoldl/3,
- splitwith/2,keyfind/3,sort/1,foreach/2]).
+ splitwith/2,keyfind/3,sort/1,foreach/2,droplast/1,last/1]).
-import(ordsets, [add_element/2,del_element/2,is_element/2,
union/1,union/2,intersection/2,subtract/2]).
-import(cerl, [ann_c_cons/3,ann_c_cons_skel/3,ann_c_tuple/2,c_tuple/1]).
@@ -226,13 +226,13 @@ guard(Gs0, St0) ->
Gt1 = guard_tests(Gt0),
L = element(2, Gt1),
{op,L,'or',Gt1,Rhs}
- end, guard_tests(last(Gs0)), first(Gs0)),
+ end, guard_tests(last(Gs0)), droplast(Gs0)),
{Gs,St} = gexpr_top(Gs1, St0#core{in_guard=true}),
{Gs,St#core{in_guard=false}}.
guard_tests(Gs) ->
L = element(2, hd(Gs)),
- {protect,L,foldr(fun (G, Rhs) -> {op,L,'and',G,Rhs} end, last(Gs), first(Gs))}.
+ {protect,L,foldr(fun (G, Rhs) -> {op,L,'and',G,Rhs} end, last(Gs), droplast(Gs))}.
%% gexpr_top(Expr, State) -> {Cexpr,State}.
%% Generate an internal core expression of a guard test. Explicitly
@@ -513,7 +513,7 @@ expr({bin,L,Es0}, St0) ->
end;
expr({block,_,Es0}, St0) ->
%% Inline the block directly.
- {Es1,St1} = exprs(first(Es0), St0),
+ {Es1,St1} = exprs(droplast(Es0), St0),
{E1,Eps,St2} = expr(last(Es0), St1),
{E1,Es1 ++ Eps,St2};
expr({'if',L,Cs0}, St0) ->
@@ -1588,15 +1588,6 @@ pat_alias_list(_, _) -> throw(nomatch).
pattern_list(Ps, St) -> [pattern(P, St) || P <- Ps].
-%% first([A]) -> [A].
-%% last([A]) -> A.
-
-first([_]) -> [];
-first([H|T]) -> [H|first(T)].
-
-last([L]) -> L;
-last([_|T]) -> last(T).
-
%% make_vars([Name]) -> [{Var,Name}].
make_vars(Vs) -> [ #c_var{name=V} || V <- Vs ].
@@ -1679,13 +1670,13 @@ uclause(#iclause{anno=Anno,pats=Ps0,guard=G0,body=B0}, Pks, Ks0, St0) ->
uguard([], [], _, St) -> {[],St};
uguard(Pg, [], Ks, St) ->
%% No guard, so fold together equality tests.
- uguard(first(Pg), [last(Pg)], Ks, St);
+ uguard(droplast(Pg), [last(Pg)], Ks, St);
uguard(Pg, Gs0, Ks, St0) ->
%% Gs0 must contain at least one element here.
{Gs3,St5} = foldr(fun (T, {Gs1,St1}) ->
{L,St2} = new_var(St1),
{R,St3} = new_var(St2),
- {[#iset{var=L,arg=T}] ++ first(Gs1) ++
+ {[#iset{var=L,arg=T}] ++ droplast(Gs1) ++
[#iset{var=R,arg=last(Gs1)},
#icall{anno=#a{}, %Must have an #a{}
module=#c_literal{val=erlang},
@@ -2088,7 +2079,8 @@ cexpr(#ifun{anno=#a{us=Us0}=A0,name={named,Name},fc=#iclause{pats=Ps}}=Fun0,
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}],
+ Letrec = #c_letrec{anno=A0#a.anno,
+ defs=[{RecVar,CFun1}],
body=RecVar},
{Letrec,[],Us1,St1}
end;
diff --git a/lib/compiler/src/v3_kernel.erl b/lib/compiler/src/v3_kernel.erl
index 9a2b1605ad..6c8089e61d 100644
--- a/lib/compiler/src/v3_kernel.erl
+++ b/lib/compiler/src/v3_kernel.erl
@@ -81,7 +81,7 @@
-export([module/2,format_error/1]).
-import(lists, [map/2,foldl/3,foldr/3,mapfoldl/3,splitwith/2,member/2,
- keymember/3,keyfind/3,partition/2]).
+ keymember/3,keyfind/3,partition/2,droplast/1,last/1]).
-import(ordsets, [add_element/2,del_element/2,union/2,union/1,subtract/2]).
-import(cerl, [c_tuple/1]).
@@ -351,7 +351,7 @@ expr(#c_case{arg=Ca,clauses=Ccs}, Sub, St0) ->
{Kvs,Pv,St2} = match_vars(Ka, St1), %Must have variables here!
{Km,St3} = kmatch(Kvs, Ccs, Sub, St2),
Match = flatten_seq(build_match(Kvs, Km)),
- {last(Match),Pa ++ Pv ++ first(Match),St3};
+ {last(Match),Pa ++ Pv ++ droplast(Match),St3};
expr(#c_receive{anno=A,clauses=Ccs0,timeout=Ce,action=Ca}, Sub, St0) ->
{Ke,Pe,St1} = atomic(Ce, Sub, St0), %Force this to be atomic!
{Rvar,St2} = new_var(St1),
@@ -847,15 +847,6 @@ foldr2(Fun, Acc0, [E1|L1], [E2|L2]) ->
foldr2(Fun, Acc1, L1, L2);
foldr2(_, Acc, [], []) -> Acc.
-%% first([A]) -> [A].
-%% last([A]) -> A.
-
-last([L]) -> L;
-last([_|T]) -> last(T).
-
-first([_]) -> [];
-first([H|T]) -> [H|first(T)].
-
%% This code implements the algorithm for an optimizing compiler for
%% pattern matching given "The Implementation of Functional
%% Programming Languages" by Simon Peyton Jones. The code is much
diff --git a/lib/compiler/test/Makefile b/lib/compiler/test/Makefile
index 51b3064589..0a637a07cd 100644
--- a/lib/compiler/test/Makefile
+++ b/lib/compiler/test/Makefile
@@ -26,6 +26,7 @@ MODULES= \
guard_SUITE \
inline_SUITE \
lc_SUITE \
+ map_SUITE \
match_SUITE \
misc_SUITE \
num_bif_SUITE \
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl
index 9f15845d33..149b9bbb8f 100644
--- a/lib/compiler/test/bs_match_SUITE.erl
+++ b/lib/compiler/test/bs_match_SUITE.erl
@@ -34,7 +34,7 @@
otp_7188/1,otp_7233/1,otp_7240/1,otp_7498/1,
match_string/1,zero_width/1,bad_size/1,haystack/1,
cover_beam_bool/1,matched_out_size/1,follow_fail_branch/1,
- no_partition/1]).
+ no_partition/1,calling_a_binary/1]).
-export([coverage_id/1,coverage_external_ignore/2]).
@@ -59,7 +59,7 @@ groups() ->
matching_and_andalso,otp_7188,otp_7233,otp_7240,
otp_7498,match_string,zero_width,bad_size,haystack,
cover_beam_bool,matched_out_size,follow_fail_branch,
- no_partition]}].
+ no_partition,calling_a_binary]}].
init_per_suite(Config) ->
@@ -1178,6 +1178,17 @@ no_partition_2([], a5) ->
no_partition_2(42.0, a6) ->
six.
+calling_a_binary(Config) when is_list(Config) ->
+ [] = call_binary(<<>>, []),
+ {'EXIT',{badarg,_}} = (catch call_binary(<<1>>, [])),
+ {'EXIT',{badarg,_}} = (catch call_binary(<<1,2,3>>, [])),
+ ok.
+
+call_binary(<<>>, Acc) ->
+ Acc;
+call_binary(<<H,T/bits>>, Acc) ->
+ T(<<Acc/binary,H>>).
+
check(F, R) ->
R = F().
diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl
index de35ebc7bd..34c4b1e264 100644
--- a/lib/compiler/test/compile_SUITE.erl
+++ b/lib/compiler/test/compile_SUITE.erl
@@ -286,57 +286,67 @@ cond_and_ifdef(Config) when is_list(Config) ->
ok.
listings(Config) when is_list(Config) ->
- ?line Dog = test_server:timetrap(test_server:minutes(8)),
- ?line DataDir = ?config(data_dir, Config),
- ?line PrivDir = ?config(priv_dir, Config),
- ?line Simple = filename:join(DataDir, simple),
- ?line TargetDir = filename:join(PrivDir, listings),
- ?line ok = file:make_dir(TargetDir),
+ Dog = test_server:timetrap(test_server:minutes(8)),
+ DataDir = ?config(data_dir, Config),
+ PrivDir = ?config(priv_dir, Config),
+ ok = do_file_listings(DataDir, PrivDir, [
+ "simple",
+ "small",
+ "small_maps"
+ ]),
+ test_server:timetrap_cancel(Dog),
+ ok.
+
+do_file_listings(_, _, []) -> ok;
+do_file_listings(DataDir, PrivDir, [File|Files]) ->
+ Simple = filename:join(DataDir, File),
+ TargetDir = filename:join(PrivDir, listings),
+ ok = file:make_dir(TargetDir),
%% Test all dedicated listing options.
- ?line do_listing(Simple, TargetDir, 'S'),
- ?line do_listing(Simple, TargetDir, 'E'),
- ?line do_listing(Simple, TargetDir, 'P'),
- ?line do_listing(Simple, TargetDir, dpp, ".pp"),
- ?line do_listing(Simple, TargetDir, dabstr, ".abstr"),
- ?line do_listing(Simple, TargetDir, dexp, ".expand"),
- ?line do_listing(Simple, TargetDir, dcore, ".core"),
- ?line do_listing(Simple, TargetDir, doldinline, ".oldinline"),
- ?line do_listing(Simple, TargetDir, dinline, ".inline"),
- ?line do_listing(Simple, TargetDir, dcore, ".core"),
- ?line do_listing(Simple, TargetDir, dcopt, ".copt"),
- ?line do_listing(Simple, TargetDir, dsetel, ".dsetel"),
- ?line do_listing(Simple, TargetDir, dkern, ".kernel"),
- ?line do_listing(Simple, TargetDir, dlife, ".life"),
- ?line do_listing(Simple, TargetDir, dcg, ".codegen"),
- ?line do_listing(Simple, TargetDir, dblk, ".block"),
- ?line do_listing(Simple, TargetDir, dbool, ".bool"),
- ?line do_listing(Simple, TargetDir, dtype, ".type"),
- ?line do_listing(Simple, TargetDir, ddead, ".dead"),
- ?line do_listing(Simple, TargetDir, djmp, ".jump"),
- ?line do_listing(Simple, TargetDir, dclean, ".clean"),
- ?line do_listing(Simple, TargetDir, dpeep, ".peep"),
- ?line do_listing(Simple, TargetDir, dopt, ".optimize"),
+ do_listing(Simple, TargetDir, 'S'),
+ do_listing(Simple, TargetDir, 'E'),
+ do_listing(Simple, TargetDir, 'P'),
+ do_listing(Simple, TargetDir, dpp, ".pp"),
+ do_listing(Simple, TargetDir, dabstr, ".abstr"),
+ do_listing(Simple, TargetDir, dexp, ".expand"),
+ do_listing(Simple, TargetDir, dcore, ".core"),
+ do_listing(Simple, TargetDir, doldinline, ".oldinline"),
+ do_listing(Simple, TargetDir, dinline, ".inline"),
+ do_listing(Simple, TargetDir, dcore, ".core"),
+ do_listing(Simple, TargetDir, dcopt, ".copt"),
+ do_listing(Simple, TargetDir, dsetel, ".dsetel"),
+ do_listing(Simple, TargetDir, dkern, ".kernel"),
+ do_listing(Simple, TargetDir, dlife, ".life"),
+ do_listing(Simple, TargetDir, dcg, ".codegen"),
+ do_listing(Simple, TargetDir, dblk, ".block"),
+ do_listing(Simple, TargetDir, dbool, ".bool"),
+ do_listing(Simple, TargetDir, dtype, ".type"),
+ do_listing(Simple, TargetDir, ddead, ".dead"),
+ do_listing(Simple, TargetDir, djmp, ".jump"),
+ do_listing(Simple, TargetDir, dclean, ".clean"),
+ do_listing(Simple, TargetDir, dpeep, ".peep"),
+ do_listing(Simple, TargetDir, dopt, ".optimize"),
%% First clean up.
- ?line Listings = filename:join(PrivDir, listings),
- ?line lists:foreach(fun(F) -> ok = file:delete(F) end,
- filelib:wildcard(filename:join(Listings, "*"))),
+ Listings = filename:join(PrivDir, listings),
+ lists:foreach(fun(F) -> ok = file:delete(F) end,
+ filelib:wildcard(filename:join(Listings, "*"))),
%% Test options that produce a listing file if 'binary' is not given.
- ?line do_listing(Simple, TargetDir, to_pp, ".P"),
- ?line do_listing(Simple, TargetDir, to_exp, ".E"),
- ?line do_listing(Simple, TargetDir, to_core0, ".core"),
- ?line ok = file:delete(filename:join(Listings, "simple.core")),
- ?line do_listing(Simple, TargetDir, to_core, ".core"),
- ?line do_listing(Simple, TargetDir, to_kernel, ".kernel"),
+ do_listing(Simple, TargetDir, to_pp, ".P"),
+ do_listing(Simple, TargetDir, to_exp, ".E"),
+ do_listing(Simple, TargetDir, to_core0, ".core"),
+ ok = file:delete(filename:join(Listings, File ++ ".core")),
+ do_listing(Simple, TargetDir, to_core, ".core"),
+ do_listing(Simple, TargetDir, to_kernel, ".kernel"),
%% Final clean up.
- ?line lists:foreach(fun(F) -> ok = file:delete(F) end,
- filelib:wildcard(filename:join(Listings, "*"))),
- ?line ok = file:del_dir(Listings),
- ?line test_server:timetrap_cancel(Dog),
- ok.
+ lists:foreach(fun(F) -> ok = file:delete(F) end,
+ filelib:wildcard(filename:join(Listings, "*"))),
+ ok = file:del_dir(Listings),
+
+ do_file_listings(DataDir,PrivDir,Files).
listings_big(Config) when is_list(Config) ->
?line Dog = test_server:timetrap(test_server:minutes(10)),
diff --git a/lib/compiler/test/compile_SUITE_data/small.erl b/lib/compiler/test/compile_SUITE_data/small.erl
new file mode 100644
index 0000000000..37cd270e50
--- /dev/null
+++ b/lib/compiler/test/compile_SUITE_data/small.erl
@@ -0,0 +1,48 @@
+-module(small).
+
+-export([go/0,go/2]).
+
+
+-small_attribute({value,3}).
+
+go() -> go(3, 3.0).
+go(A,B) ->
+ V1 = A + B,
+ V2 = A * B,
+ V3 = V1 / V2,
+ V4 = V3 / 0.3,
+ V5 = V1 + V2 + V3 + V4,
+ try
+ R = call(<<"wazzup">>, A),
+ {A,B,V5,R,t(),recv()}
+ catch
+ C:E ->
+ {error, C, E}
+ end.
+
+-spec call(binary(), term()) -> binary().
+
+call(<<"wa", B/binary>>,V) when is_integer(V) -> B;
+call(B,_) -> B.
+
+t() ->
+ <<23:32, V:14, _:2, B/binary>> = id(<<"wazzup world">>),
+ {V,B}.
+
+recv() ->
+ F = fun() ->
+ receive
+ 1 -> ok;
+ 2 -> ok;
+ 3 -> ok;
+ a -> ok;
+ _ -> none
+ after 0 -> tmo
+ end
+ end,
+ tmo = F(),
+ ok.
+
+
+id(I) -> I.
+
diff --git a/lib/compiler/test/compile_SUITE_data/small_maps.erl b/lib/compiler/test/compile_SUITE_data/small_maps.erl
new file mode 100644
index 0000000000..a17a136a7d
--- /dev/null
+++ b/lib/compiler/test/compile_SUITE_data/small_maps.erl
@@ -0,0 +1,16 @@
+-module(small_maps).
+
+-export([go/0,go/1]).
+
+go() ->
+ go(1337).
+
+go(V0) ->
+ M0 = #{ a => 1, val => V0},
+ V1 = get_val(M0),
+ M1 = M0#{ val := [V0,V1] },
+ {some_val,[1337,{some_val,1337}]} = get_val(M1),
+ ok.
+
+get_val(#{ "wazzup" := _, val := V}) -> V;
+get_val(#{ val := V }) -> {some_val, V}.
diff --git a/lib/compiler/test/core_fold_SUITE.erl b/lib/compiler/test/core_fold_SUITE.erl
index 69f61a046f..8151dc1b16 100644
--- a/lib/compiler/test/core_fold_SUITE.erl
+++ b/lib/compiler/test/core_fold_SUITE.erl
@@ -22,7 +22,8 @@
init_per_group/2,end_per_group/2,
t_element/1,setelement/1,t_length/1,append/1,t_apply/1,bifs/1,
eq/1,nested_call_in_case/1,guard_try_catch/1,coverage/1,
- unused_multiple_values_error/1,unused_multiple_values/1]).
+ unused_multiple_values_error/1,unused_multiple_values/1,
+ multiple_aliases/1]).
-export([foo/0,foo/1,foo/2,foo/3]).
@@ -38,7 +39,8 @@ groups() ->
[{p,test_lib:parallel(),
[t_element,setelement,t_length,append,t_apply,bifs,
eq,nested_call_in_case,guard_try_catch,coverage,
- unused_multiple_values_error,unused_multiple_values]}].
+ unused_multiple_values_error,unused_multiple_values,
+ multiple_aliases]}].
init_per_suite(Config) ->
@@ -299,8 +301,6 @@ cover_is_safe_bool_expr(X) ->
bsm_an_inlined(<<_:8>>, _) -> ok;
bsm_an_inlined(_, _) -> error.
-id(I) -> I.
-
unused_multiple_values_error(Config) when is_list(Config) ->
PrivDir = ?config(priv_dir, Config),
Dir = filename:dirname(code:which(?MODULE)),
@@ -338,3 +338,31 @@ do_something(I) ->
put(unused_multiple_values,
[I|get(unused_multiple_values)]),
I.
+
+
+%% Make sure that multiple aliases does not cause
+%% the case expression to be evaluated twice.
+multiple_aliases(Config) when is_list(Config) ->
+ do_ma(fun() ->
+ X = Y = run_once(),
+ {X,Y}
+ end, {ok,ok}),
+ do_ma(fun() ->
+ case {true,run_once()} of
+ {true=A=B,ok=X=Y} ->
+ {A,B,X,Y}
+ end
+ end, {true,true,ok,ok}),
+ ok.
+
+do_ma(Fun, Expected) when is_function(Fun, 0) ->
+ Expected = Fun(),
+ ran_once = erase(run_once),
+ ok.
+
+run_once() ->
+ undefined = put(run_once, ran_once),
+ ok.
+
+
+id(I) -> I.
diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl
new file mode 100644
index 0000000000..dc880a7a9d
--- /dev/null
+++ b/lib/compiler/test/map_SUITE.erl
@@ -0,0 +1,467 @@
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2013. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(map_SUITE).
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
+ init_per_group/2,end_per_group/2
+ ]).
+
+-export([
+ t_build_and_match_literals/1,
+ t_update_literals/1,t_match_and_update_literals/1,
+ t_update_map_expressions/1,
+ t_update_assoc/1,t_update_exact/1,
+ t_guard_bifs/1, t_guard_sequence/1, t_guard_update/1,
+ t_guard_receive/1, t_guard_fun/1,
+ t_list_comprehension/1,
+ t_map_sort_literals/1,
+ t_map_size/1,
+
+ %% warnings
+ t_warn_useless_build/1,
+ t_warn_pair_key_overloaded/1,
+
+ %% 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
+
+ %% errors in 17.0-rc1
+
+ ]).
+
+suite() -> [].
+
+all() -> [
+ t_build_and_match_literals,
+ t_update_literals, t_match_and_update_literals,
+ t_update_map_expressions,
+ t_update_assoc,t_update_exact,
+ t_guard_bifs, t_guard_sequence, t_guard_update,
+ t_guard_receive,t_guard_fun, t_list_comprehension,
+ t_map_sort_literals,
+
+ %% warnings
+ t_warn_useless_build,
+ t_warn_pair_key_overloaded,
+
+ %% not covered in 17.0-rc1
+ t_build_and_match_over_alloc,
+ t_build_and_match_empty_val,
+ t_build_and_match_val
+
+ %% errors in 17.0-rc1
+
+ ].
+
+groups() -> [].
+
+init_per_suite(Config) -> Config.
+end_per_suite(_Config) -> ok.
+
+init_per_group(_GroupName, Config) -> Config.
+end_per_group(_GroupName, Config) -> Config.
+
+%% tests
+
+t_build_and_match_literals(Config) when is_list(Config) ->
+ #{} = id(#{}),
+ #{1:=a} = id(#{1=>a}),
+ #{1:=a,2:=b} = id(#{1=>a,2=>b}),
+ #{1:=a,2:=b,3:="c"} = id(#{1=>a,2=>b,3=>"c"}),
+ #{1:=a,2:=b,3:="c","4":="d"} = id(#{1=>a,2=>b,3=>"c","4"=>"d"}),
+ #{1:=a,2:=b,3:="c","4":="d",<<"5">>:=<<"e">>} =
+ id(#{1=>a,2=>b,3=>"c","4"=>"d",<<"5">>=><<"e">>}),
+ #{1:=a,2:=b,3:="c","4":="d",<<"5">>:=<<"e">>,{"6",7}:="f"} =
+ id(#{1=>a,2=>b,3=>"c","4"=>"d",<<"5">>=><<"e">>,{"6",7}=>"f"}),
+ #{1:=a,2:=b,3:="c","4":="d",<<"5">>:=<<"e">>,{"6",7}:="f",8:=g} =
+ id(#{1=>a,2=>b,3=>"c","4"=>"d",<<"5">>=><<"e">>,{"6",7}=>"f",8=>g}),
+
+ #{<<"hi all">> := 1} = id(#{<<"hi",32,"all">> => 1}),
+
+ #{a:=X,a:=X=3,b:=4} = id(#{a=>3,b=>4}), % weird but ok =)
+
+ #{ a:=#{ b:=#{c := third, b:=second}}, b:=first} =
+ id(#{ b=>first, a=>#{ b=>#{c => third, b=> second}}}),
+
+ M = #{ map_1=>#{ map_2=>#{value_3 => third}, value_2=> second}, value_1=>first},
+ M = #{ map_1:=#{ map_2:=#{value_3 := third}, value_2:= second}, value_1:=first} =
+ id(#{ map_1=>#{ map_2=>#{value_3 => third}, value_2=> second}, value_1=>first}),
+
+ %% error case
+ %V = 32,
+ %{'EXIT',{{badmatch,_},_}} = (catch (#{<<"hi all">> => 1} = id(#{<<"hi",V,"all">> => 1}))),
+ {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3,x:=2} = id(#{x=>3}))),
+ {'EXIT',{{badmatch,_},_}} = (catch (#{x:=2} = id(#{x=>3}))),
+ {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id({a,b,c}))),
+ {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id(#{y=>3}))),
+ {'EXIT',{{badmatch,_},_}} = (catch (#{x:=3} = id(#{x=>"three"}))),
+ ok.
+
+
+t_map_size(Config) when is_list(Config) ->
+ 0 = map_size(id(#{})),
+ 1 = map_size(id(#{a=>1})),
+ 1 = map_size(id(#{a=>"wat"})),
+ 2 = map_size(id(#{a=>1, b=>2})),
+ 3 = map_size(id(#{a=>1, b=>2, b=>"3","33"=><<"n">>})),
+
+ true = map_is_size(#{a=>1}, 1),
+ true = map_is_size(#{a=>1, a=>2}, 1),
+ M = #{ "a" => 1, "b" => 2},
+ true = map_is_size(M, 2),
+ false = map_is_size(M, 3),
+ true = map_is_size(M#{ "a" => 2}, 2),
+ false = map_is_size(M#{ "c" => 2}, 2),
+
+ %% Error cases.
+ {'EXIT',{badarg,_}} = (catch map_size([])),
+ {'EXIT',{badarg,_}} = (catch map_size(<<1,2,3>>)),
+ {'EXIT',{badarg,_}} = (catch map_size(1)),
+ ok.
+
+map_is_size(M,N) when map_size(M) =:= N -> true;
+map_is_size(_,_) -> false.
+
+% test map updates without matching
+t_update_literals(Config) when is_list(Config) ->
+ Map = #{x=>1,y=>2,z=>3,q=>4},
+ #{x:="d",q:="4"} = loop_update_literals_x_q(Map, [
+ {"a","1"},{"b","2"},{"c","3"},{"d","4"}
+ ]),
+ ok.
+
+loop_update_literals_x_q(Map, []) -> Map;
+loop_update_literals_x_q(Map, [{X,Q}|Vs]) ->
+ loop_update_literals_x_q(Map#{q=>Q,x=>X},Vs).
+
+% test map updates with matching
+t_match_and_update_literals(Config) when is_list(Config) ->
+ Map = #{x=>0,y=>"untouched",z=>"also untouched",q=>1},
+ #{x:=16,q:=21,y:="untouched",z:="also untouched"} = loop_match_and_update_literals_x_q(Map, [
+ {1,2},{3,4},{5,6},{7,8}
+ ]),
+ M0 = id(#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+ 4 => number, 18446744073709551629 => wat}),
+ M1 = id(#{}),
+ M2 = M1#{ "hi" => "hello", int => 3, <<"key">> => <<"value">>,
+ 4 => number, 18446744073709551629 => wat},
+ M0 = M2,
+
+ #{ 4 := another_number, int := 3 } = M2#{ 4 => another_number },
+ ok.
+
+loop_match_and_update_literals_x_q(Map, []) -> Map;
+loop_match_and_update_literals_x_q(#{q:=Q0,x:=X0} = Map, [{X,Q}|Vs]) ->
+ loop_match_and_update_literals_x_q(Map#{q=>Q0+Q,x=>X0+X},Vs).
+
+
+t_update_map_expressions(Config) when is_list(Config) ->
+ M = maps:new(),
+ #{ a := 1 } = M#{a => 1},
+
+ #{ b := 2 } = (maps:new())#{ b => 2 },
+
+ #{ a :=42, b:=42, c:=42 } = (maps:from_list([{a,1},{b,2},{c,3}]))#{ a := 42, b := 42, c := 42 },
+ #{ "a" :=1, "b":=42, "c":=42 } = (maps:from_list([{"a",1},{"b",2}]))#{ "b" := 42, "c" => 42 },
+
+ %% Error cases, FIXME: should be 'badmap'?
+ {'EXIT',{badarg,_}} = (catch (id(<<>>))#{ a := 42, b => 2 }),
+ {'EXIT',{badarg,_}} = (catch (id([]))#{ a := 42, b => 2 }),
+ ok.
+
+
+t_update_assoc(Config) when is_list(Config) ->
+ M0 = id(#{1=>a,2=>b,3.0=>c,4=>d,5=>e}),
+
+ M1 = M0#{1=>42,2=>100,4=>[a,b,c]},
+ #{1:=42,2:=100,3.0:=c,4:=[a,b,c],5:=e} = M1,
+ #{1:=42,2:=b,4:=d,5:=e,2.0:=100,3.0:=c,4.0:=[a,b,c]} = M0#{1.0=>float,1:=42,2.0=>wrong,2.0=>100,4.0=>[a,b,c]},
+
+ 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},
+
+ %% Errors cases.
+ BadMap = id(badmap),
+ {'EXIT',{badarg,_}} = (catch BadMap#{nonexisting=>val}),
+
+ ok.
+
+t_update_exact(Config) when is_list(Config) ->
+ M0 = id(#{1=>a,2=>b,3.0=>c,4=>d,5=>e}),
+
+ M1 = M0#{1:=42,2:=100,4:=[a,b,c]},
+ #{1:=42,2:=100,3.0:=c,4:=[a,b,c],5:=e} = M1,
+ M1 = M0#{1:=wrong,1=>42,2=>wrong,2:=100,4:=[a,b,c]},
+
+ 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},
+
+ %% Errors cases.
+ {'EXIT',{badarg,_}} = (catch ((id(nil))#{ a := b })),
+ {'EXIT',{badarg,_}} = (catch M0#{nonexisting:=val}),
+ {'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_guard_bifs(Config) when is_list(Config) ->
+ true = map_guard_head(#{a=>1}),
+ false = map_guard_head([]),
+ true = map_guard_body(#{a=>1}),
+ false = map_guard_body({}),
+ true = map_guard_pattern(#{a=>1, <<"hi">> => "hi" }),
+ false = map_guard_pattern("list"),
+ ok.
+
+map_guard_head(M) when is_map(M) -> true;
+map_guard_head(_) -> false.
+
+map_guard_body(M) -> is_map(M).
+
+map_guard_pattern(#{}) -> true;
+map_guard_pattern(_) -> false.
+
+t_guard_sequence(Config) when is_list(Config) ->
+ {1, "a"} = map_guard_sequence_1(#{seq=>1,val=>id("a")}),
+ {2, "b"} = map_guard_sequence_1(#{seq=>2,val=>id("b")}),
+ {3, "c"} = map_guard_sequence_1(#{seq=>3,val=>id("c")}),
+ {4, "d"} = map_guard_sequence_1(#{seq=>4,val=>id("d")}),
+ {5, "e"} = map_guard_sequence_1(#{seq=>5,val=>id("e")}),
+
+ {1,M1} = map_guard_sequence_2(M1 = id(#{a=>3})),
+ {2,M2} = map_guard_sequence_2(M2 = id(#{a=>4, b=>4})),
+ {3,gg,M3} = map_guard_sequence_2(M3 = id(#{a=>gg, b=>4})),
+ {4,sc,sc,M4} = map_guard_sequence_2(M4 = id(#{a=>sc, b=>3, c=>sc2})),
+ {5,kk,kk,M5} = map_guard_sequence_2(M5 = id(#{a=>kk, b=>other, c=>sc2})),
+
+ %% error case
+ {'EXIT',{function_clause,_}} = (catch map_guard_sequence_1(#{seq=>6,val=>id("e")})),
+ {'EXIT',{function_clause,_}} = (catch map_guard_sequence_2(#{b=>5})),
+ ok.
+
+map_guard_sequence_1(#{seq:=1=Seq, val:=Val}) -> {Seq,Val};
+map_guard_sequence_1(#{seq:=2=Seq, val:=Val}) -> {Seq,Val};
+map_guard_sequence_1(#{seq:=3=Seq, val:=Val}) -> {Seq,Val};
+map_guard_sequence_1(#{seq:=4=Seq, val:=Val}) -> {Seq,Val};
+map_guard_sequence_1(#{seq:=5=Seq, val:=Val}) -> {Seq,Val}.
+
+map_guard_sequence_2(#{ a:=3 }=M) -> {1, M};
+map_guard_sequence_2(#{ a:=4 }=M) -> {2, M};
+map_guard_sequence_2(#{ a:=X, a:=X, b:=4 }=M) -> {3,X,M};
+map_guard_sequence_2(#{ a:=X, a:=Y, b:=3 }=M) when X =:= Y -> {4,X,Y,M};
+map_guard_sequence_2(#{ a:=X, a:=Y }=M) when X =:= Y -> {5,X,Y,M}.
+
+
+t_guard_update(Config) when is_list(Config) ->
+ error = map_guard_update(#{},#{}),
+ first = map_guard_update(#{}, #{x=>first}),
+ second = map_guard_update(#{y=>old}, #{x=>second,y=>old}),
+ third = map_guard_update(#{x=>old,y=>old}, #{x=>third,y=>old}),
+ ok.
+
+map_guard_update(M1, M2) when M1#{x=>first} =:= M2 -> first;
+map_guard_update(M1, M2) when M1#{x=>second} =:= M2 -> second;
+map_guard_update(M1, M2) when M1#{x:=third} =:= M2 -> third;
+map_guard_update(_, _) -> error.
+
+t_guard_receive(Config) when is_list(Config) ->
+ M0 = #{ id => 0 },
+ Pid = spawn_link(fun() -> guard_receive_loop() end),
+ Big = 36893488147419103229,
+ B1 = <<"some text">>,
+ B2 = <<"was appended">>,
+ B3 = <<B1/binary, B2/binary>>,
+
+ #{id:=1, res:=Big} = M1 = call(Pid, M0#{op=>sub,in=>{1 bsl 65, 3}}),
+ #{id:=2, res:=26} = M2 = call(Pid, M1#{op=>idiv,in=>{53,2}}),
+ #{id:=3, res:=832} = M3 = call(Pid, M2#{op=>imul,in=>{26,32}}),
+ #{id:=4, res:=4} = M4 = call(Pid, M3#{op=>add,in=>{1,3}}),
+ #{id:=5, res:=Big} = M5 = call(Pid, M4#{op=>sub,in=>{1 bsl 65, 3}}),
+ #{id:=6, res:=B3} = M6 = call(Pid, M5#{op=>"append",in=>{B1,B2}}),
+ #{id:=7, res:=4} = _ = call(Pid, M6#{op=>add,in=>{1,3}}),
+
+
+ %% update old maps and check id update
+ #{id:=2, res:=B3} = call(Pid, M1#{op=>"append",in=>{B1,B2}}),
+ #{id:=5, res:=99} = call(Pid, M4#{op=>add,in=>{33, 66}}),
+
+ %% cleanup
+ done = call(Pid, done),
+ ok.
+
+call(Pid, M) ->
+ Pid ! {self(), M}, receive {Pid, Res} -> Res end.
+
+guard_receive_loop() ->
+ receive
+ {Pid, #{ id:=Id, op:="append", in:={X,Y}}=M} when is_binary(X), is_binary(Y) ->
+ Pid ! {self(), M#{ id=>Id+1, res=><<X/binary,Y/binary>>}},
+ guard_receive_loop();
+ {Pid, #{ id:=Id, op:=add, in:={X,Y}}} ->
+ Pid ! {self(), #{ id=>Id+1, res=>X+Y}},
+ guard_receive_loop();
+ {Pid, #{ id:=Id, op:=sub, in:={X,Y}}=M} ->
+ Pid ! {self(), M#{ id=>Id+1, res=>X-Y}},
+ guard_receive_loop();
+ {Pid, #{ id:=Id, op:=idiv, in:={X,Y}}=M} ->
+ Pid ! {self(), M#{ id=>Id+1, res=>X div Y}},
+ guard_receive_loop();
+ {Pid, #{ id:=Id, op:=imul, in:={X,Y}}=M} ->
+ Pid ! {self(), M#{ id=>Id+1, res=>X * Y}},
+ guard_receive_loop();
+ {Pid, done} ->
+ Pid ! {self(), done};
+ {Pid, Other} ->
+ Pid ! {error, Other},
+ guard_receive_loop()
+ end.
+
+
+t_list_comprehension(Config) when is_list(Config) ->
+ [#{k:=1},#{k:=2},#{k:=3}] = [#{k=>I} || I <- [1,2,3]],
+ ok.
+
+t_guard_fun(Config) when is_list(Config) ->
+ F1 = fun
+ (#{s:=v,v:=V}) -> {v,V};
+ (#{s:=t,v:={V,V}}) -> {t,V};
+ (#{s:=l,v:=[V,V]}) -> {l,V}
+ end,
+
+ F2 = fun
+ (#{s:=T,v:={V,V}}) -> {T,V};
+ (#{s:=T,v:=[V,V]}) -> {T,V};
+ (#{s:=T,v:=V}) -> {T,V}
+ end,
+ V = <<"hi">>,
+
+ {v,V} = F1(#{s=>v,v=>V}),
+ {t,V} = F1(#{s=>t,v=>{V,V}}),
+ {l,V} = F1(#{s=>l,v=>[V,V]}),
+
+ {v,V} = F2(#{s=>v,v=>V}),
+ {t,V} = F2(#{s=>t,v=>{V,V}}),
+ {l,V} = F2(#{s=>l,v=>[V,V]}),
+
+ %% error case
+ {'EXIT', {function_clause,[{?MODULE,_,[#{s:=none,v:=none}],_}|_]}} = (catch F1(#{s=>none,v=>none})),
+ ok.
+
+
+t_map_sort_literals(Config) when is_list(Config) ->
+ % test relation
+
+ %% size order
+ true = #{ a => 1, b => 2} < id(#{ a => 1, b => 1, c => 1}),
+ true = #{ b => 1, a => 1} < id(#{ c => 1, a => 1, b => 1}),
+ false = #{ c => 1, b => 1, a => 1} < id(#{ c => 1, a => 1}),
+
+ %% key order
+ true = id(#{ a => 1 }) < id(#{ b => 1}),
+ false = id(#{ b => 1 }) < id(#{ a => 1}),
+ true = id(#{ a => 1, b => 1, c => 1 }) < id(#{ b => 1, c => 1, d => 1}),
+ true = id(#{ b => 1, c => 1, d => 1 }) > id(#{ a => 1, b => 1, c => 1}),
+ true = id(#{ c => 1, b => 1, a => 1 }) < id(#{ b => 1, c => 1, d => 1}),
+ true = id(#{ "a" => 1 }) < id(#{ <<"a">> => 1}),
+ false = id(#{ <<"a">> => 1 }) < id(#{ "a" => 1}),
+ false = id(#{ 1 => 1 }) < id(#{ 1.0 => 1}),
+ false = id(#{ 1.0 => 1 }) < id(#{ 1 => 1}),
+
+ %% value order
+ true = id(#{ a => 1 }) < id(#{ a => 2}),
+ false = id(#{ a => 2 }) < id(#{ a => 1}),
+ false = id(#{ a => 2, b => 1 }) < id(#{ a => 1, b => 3}),
+ true = id(#{ a => 1, b => 1 }) < id(#{ a => 1, b => 3}),
+
+ true = id(#{ "a" => "hi", b => 134 }) == id(#{ b => 134,"a" => "hi"}),
+
+ %% lists:sort
+
+ SortVs = [#{"a"=>1},#{a=>2},#{1=>3},#{<<"a">>=>4}],
+ [#{1:=ok},#{a:=ok},#{"a":=ok},#{<<"a">>:=ok}] = lists:sort([#{"a"=>ok},#{a=>ok},#{1=>ok},#{<<"a">>=>ok}]),
+ [#{1:=3},#{a:=2},#{"a":=1},#{<<"a">>:=4}] = lists:sort(SortVs),
+ [#{1:=3},#{a:=2},#{"a":=1},#{<<"a">>:=4}] = lists:sort(lists:reverse(SortVs)),
+
+ ok.
+
+t_warn_pair_key_overloaded(Config) when is_list(Config) ->
+ #{ "hi1" := 42 } = id(#{ "hi1" => 1, "hi1" => 42 }),
+
+ #{ "hi1" := 1337, "hi2" := [2], "hi3" := 3 } = id(#{
+ "hi1" => erlang:atom_to_binary(?MODULE,utf8),
+ "hi1" => erlang:binary_to_atom(<<"wazzup">>,utf8),
+ "hi1" => erlang:binary_to_float(<<"3.1416">>),
+ "hi1" => erlang:float_to_binary(3.1416),
+ "hi2" => erlang:pid_to_list(self()),
+ "hi3" => erlang:float_to_binary(3.1416),
+ "hi2" => lists:subtract([1,2],[1]),
+ "hi3" => +3,
+ "hi1" => erlang:min(1,2),
+ "hi1" => erlang:hash({1,2},35),
+ "hi1" => erlang:phash({1,2},33),
+ "hi1" => erlang:phash2({1,2},34),
+ "hi1" => erlang:integer_to_binary(1337),
+ "hi1" => erlang:binary_to_integer(<<"1337">>),
+ "hi4" => erlang:float_to_binary(3.1416)
+ }),
+ ok.
+
+t_warn_useless_build(Config) when is_list(Config) ->
+ [#{ a => id(I)} || I <- [1,2,3]],
+ ok.
+
+t_build_and_match_over_alloc(Config) when is_list(Config) ->
+ Ls = id([1,2,3]),
+ V0 = [a|Ls],
+ M0 = id(#{ "a" => V0 }),
+ #{ "a" := V1 } = M0,
+ V2 = id([c|Ls]),
+ M2 = id(#{ "a" => V2 }),
+ #{ "a" := V3 } = M2,
+ {[a,1,2,3],[c,1,2,3]} = id({V1,V3}),
+ ok.
+
+t_build_and_match_empty_val(Config) when is_list(Config) ->
+ F = fun(#{ "hi":=_,{1,2}:=_,1337:=_}) -> ok end,
+ ok = F(id(#{"hi"=>ok,{1,2}=>ok,1337=>ok})),
+
+ %% error case
+ {'EXIT',{function_clause,_}} = (catch (F(id(#{"hi"=>ok})))),
+ ok.
+
+t_build_and_match_val(Config) when is_list(Config) ->
+ F = fun
+ (#{ "hi" := first, v := V}) -> {1,V};
+ (#{ "hi" := second, v := V}) -> {2,V}
+ end,
+
+
+ {1,"hello"} = F(id(#{"hi"=>first,v=>"hello"})),
+ {2,"second"} = F(id(#{"hi"=>second,v=>"second"})),
+
+ %% error case
+ {'EXIT',{function_clause,_}} = (catch (F(id(#{"hi"=>ok})))),
+ ok.
+
+
+%% Use this function to avoid compile-time evaluation of an expression.
+id(I) -> I.
diff --git a/lib/compiler/test/warnings_SUITE.erl b/lib/compiler/test/warnings_SUITE.erl
index 7186956603..16d15a59e5 100644
--- a/lib/compiler/test/warnings_SUITE.erl
+++ b/lib/compiler/test/warnings_SUITE.erl
@@ -390,6 +390,10 @@ effect(Config) when is_list(Config) ->
<<X:8>>;
unused_fun ->
fun() -> {ok,X} end;
+ unused_named_fun ->
+ fun F(0) -> 1;
+ F(N) -> N*F(N-1)
+ end;
unused_atom ->
ignore; %no warning
unused_nil ->
@@ -484,8 +488,9 @@ effect(Config) when is_list(Config) ->
{22,sys_core_fold,{no_effect,{erlang,is_integer,1}}},
{24,sys_core_fold,useless_building},
{26,sys_core_fold,useless_building},
- {32,sys_core_fold,{no_effect,{erlang,'=:=',2}}},
- {34,sys_core_fold,{no_effect,{erlang,get_cookie,0}}}]}}],
+ {28,sys_core_fold,useless_building},
+ {36,sys_core_fold,{no_effect,{erlang,'=:=',2}}},
+ {38,sys_core_fold,{no_effect,{erlang,get_cookie,0}}}]}}],
?line [] = run(Config, Ts),
ok.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 10:50:25 +0000