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authorHans Bolinder <[email protected]>2015-03-09 16:26:09 +0100
committerBjörn Gustavsson <[email protected]>2015-04-30 12:14:30 +0200
commit87a0af476ef82ca2f33d0e15ce324afcfafe3aad (patch)
treea2b3614bfab4f6d58ec739edb86f8f15d7e7bcd3 /lib/stdlib/src/qlc_pt.erl
parentd20cf6b7d18fd45d6c1beaa39aa87be90080f30b (diff)
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stdlib: Use module erl_anno
Diffstat (limited to 'lib/stdlib/src/qlc_pt.erl')
-rw-r--r--lib/stdlib/src/qlc_pt.erl654
1 files changed, 382 insertions, 272 deletions
diff --git a/lib/stdlib/src/qlc_pt.erl b/lib/stdlib/src/qlc_pt.erl
index b6bb758dfb..c99d4128a1 100644
--- a/lib/stdlib/src/qlc_pt.erl
+++ b/lib/stdlib/src/qlc_pt.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2004-2014. All Rights Reserved.
+%% Copyright Ericsson AB 2004-2015. 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
@@ -39,7 +39,12 @@
opt % #qlc_opt
}).
--record(state, {imp, maxargs, records, xwarnings = []}).
+-record(state, {imp,
+ maxargs,
+ records,
+ xwarnings = [],
+ intro_vars,
+ node_info}).
%-define(debug, true).
@@ -66,37 +71,49 @@
Options :: [Option],
Option :: type_checker | compile:option()).
-parse_transform(Forms, Options) ->
+parse_transform(Forms0, Options) ->
?DEBUG("qlc Parse Transform~n", []),
- State = #state{imp = is_qlc_q_imported(Forms),
- maxargs = ?COMPILE_MAX_NUM_OF_ARGS,
- records = record_attributes(Forms)},
- case called_from_type_checker(Options) of
- true ->
- %% The returned value should conform to the types, but
- %% need not evaluate to anything meaningful.
- L = 0,
- {tuple,_,Fs0} = abstr(#qlc_lc{}, L),
- F = fun(_Id, LC, A) ->
- Init = simple(L, 'V', LC, L),
- {{tuple,L,set_field(#qlc_lc.lc, Fs0, Init)}, A}
- end,
- {Forms1,ok} = qlc_mapfold(F, ok, Forms, State),
- Forms1;
- false ->
- FormsNoShadows = no_shadows(Forms, State),
- case compile_messages(Forms, FormsNoShadows, Options, State) of
- {[],[],Warnings} ->
- {NewForms, State1} = transform(FormsNoShadows, State),
- ExtraWs = State1#state.xwarnings,
- {[],WForms} = no_duplicates(NewForms, [], Warnings,
- ExtraWs, Options),
- WForms ++ NewForms;
- {E0,Errors,Warnings} ->
- {EForms,WForms} = no_duplicates(Forms, E0++Errors,
- Warnings, [], Options),
- EForms ++ WForms ++ Forms
- end
+ Imported = is_qlc_q_imported(Forms0),
+ {Forms, FormsNoShadows, State} = initiate(Forms0, Imported),
+ NodeInfo = State#state.node_info,
+ try
+ case called_from_type_checker(Options) of
+ true ->
+ %% The returned value should conform to the types, but
+ %% need not evaluate to anything meaningful.
+ L = anno0(),
+ {tuple,_,Fs0} = abstr(#qlc_lc{}, L),
+ F = fun(_Id, LC, A) ->
+ Init = simple(L, 'V', LC, L),
+ {{tuple,L,set_field(#qlc_lc.lc, Fs0, Init)}, A}
+ end,
+ {Forms1,ok} = qlc_mapfold(F, ok, Forms, State),
+ Forms1;
+ false ->
+ case
+ compile_messages(Forms, FormsNoShadows, Options, State)
+ of
+ {[],Warnings} ->
+ ?DEBUG("node info1 ~p~n",
+ [lists:sort(ets:tab2list(NodeInfo))]),
+ {NewForms, State1} =
+ transform(FormsNoShadows, State),
+ ExtraWs = State1#state.xwarnings,
+ {[],WForms} = no_duplicates(NewForms, [], Warnings,
+ ExtraWs, Options),
+ (restore_locations(WForms, State) ++
+ restore_anno(NewForms, NodeInfo));
+ {Errors,Warnings} ->
+ ?DEBUG("node info2 ~p~n",
+ [lists:sort(ets:tab2list(NodeInfo))]),
+ {EForms,WForms} = no_duplicates(FormsNoShadows, Errors,
+ Warnings, [],
+ Options),
+ restore_locations(EForms ++ WForms, State) ++ Forms0
+ end
+ end
+ after
+ true = ets:delete(NodeInfo)
end.
-spec(transform_from_evaluator(LC, Bs) -> Expr when
@@ -124,30 +141,78 @@ called_from_type_checker(Options) ->
lists:member(type_checker, Options).
transform_expression(LC, Bs0, WithLintErrors) ->
- L = 1,
+ L = anno1(),
As = [{var,L,V} || {V,_Val} <- Bs0],
Ar = length(As),
F = {function,L,bar,Ar,[{clause,L,As,[],[?QLC_Q(L, L, L, L, LC, [])]}]},
- Forms = [{attribute,L,file,{"foo",L}},
- {attribute,L,module,foo}, F],
- State = #state{imp = false,
- maxargs = ?EVAL_MAX_NUM_OF_ARGS,
- records = record_attributes(Forms)},
+ Forms0 = [{attribute,L,file,{"foo",L}},
+ {attribute,L,module,foo}, F],
+ {Forms, FormsNoShadows, State} = initiate(Forms0, false),
+ NodeInfo = State#state.node_info,
Options = [],
- FormsNoShadows = no_shadows(Forms, State),
- case compile_messages(Forms, FormsNoShadows, Options, State) of
- {[],[],_Warnings} ->
- {NewForms,_State1} = transform(FormsNoShadows, State),
- {function,L,bar,Ar,[{clause,L,As,[],[NF]}]} =
- lists:last(NewForms),
- {ok,NF};
- {E0,Errors,_Warnings} when WithLintErrors ->
- {not_ok,mforms(error, E0 ++ Errors)};
- {E0,Errors0,_Warnings} ->
- [{error,Reason} | _] = mforms(error, E0++Errors0),
- {not_ok, {error, ?APIMOD, Reason}}
+ try compile_messages(Forms, FormsNoShadows, Options, State) of
+ {Errors0,_Warnings} ->
+ case restore_locations(Errors0, State) of
+ [] ->
+ {NewForms,_State1} = transform(FormsNoShadows, State),
+ NewForms1 = restore_anno(NewForms, NodeInfo),
+ {function,L,bar,Ar,[{clause,L,As,[],[NF]}]} =
+ lists:last(NewForms1),
+ {ok,NF};
+ Errors when WithLintErrors ->
+ {not_ok,mforms(error, Errors)};
+ Errors ->
+ [{error,Reason} | _] = mforms(error, Errors),
+ {not_ok, {error, ?APIMOD, Reason}}
+ end
+ after
+ true = ets:delete(NodeInfo)
end.
+-ifdef(DEBUG).
+-define(ILIM, 0).
+-else.
+-define(ILIM, 255).
+-endif.
+
+initiate(Forms0, Imported) ->
+ NodeInfo = ets:new(?APIMOD, []),
+ true = ets:insert(NodeInfo, {var_n, ?ILIM}),
+ exclude_integers_from_unique_line_numbers(Forms0, NodeInfo),
+ ?DEBUG("node info0 ~p~n",
+ [lists:sort(ets:tab2list(NodeInfo))]),
+ State0 = #state{imp = Imported,
+ maxargs = ?EVAL_MAX_NUM_OF_ARGS,
+ records = record_attributes(Forms0),
+ node_info = NodeInfo},
+ Forms = save_anno(Forms0, NodeInfo),
+ FormsNoShadows = no_shadows(Forms, State0),
+ IntroVars = intro_variables(FormsNoShadows, State0),
+ State = State0#state{intro_vars = IntroVars},
+ {Forms, FormsNoShadows, State}.
+
+%% Make sure restore_locations() does not confuse integers with (the
+%% unique) line numbers.
+exclude_integers_from_unique_line_numbers(Forms, NodeInfo) ->
+ Integers = find_integers(Forms),
+ lists:foreach(fun(I) -> ets:insert(NodeInfo, {I}) end, Integers).
+
+find_integers(Forms) ->
+ F = fun(A) ->
+ Fs1 = erl_parse:map_anno(fun(_) -> A end, Forms),
+ ordsets:from_list(integers(Fs1, []))
+ end,
+ ordsets:to_list(ordsets:intersection(F(anno0()), F(anno1()))).
+
+integers([E | Es], L) ->
+ integers(Es, integers(E, L));
+integers(T, L) when is_tuple(T) ->
+ integers(tuple_to_list(T), L);
+integers(I, L) when is_integer(I), I > ?ILIM ->
+ [I | L];
+integers(_, L) ->
+ L.
+
-define(I(I), {integer, L, I}).
-define(A(A), {atom, L, A}).
-define(V(V), {var, L, V}).
@@ -185,13 +250,22 @@ mforms(L) ->
lists:sort([{File,[M]} || {File,Ms} <- L, M <- Ms]).
mforms2(Tag, L) ->
- Line = 0,
+ Line = anno0(),
ML = lists:flatmap(fun({File,Ms}) ->
- [[{attribute,Line,file,{File,Line}}, {Tag,M}] ||
+ [[{attribute,Line,file,{File,0}}, {Tag,M}] ||
M <- Ms]
end, lists:sort(L)),
lists:flatten(lists:sort(ML)).
+restore_locations([T | Ts], State) ->
+ [restore_locations(T, State) | restore_locations(Ts, State)];
+restore_locations(T, State) when is_tuple(T) ->
+ list_to_tuple(restore_locations(tuple_to_list(T), State));
+restore_locations(I, State) when I > ?ILIM ->
+ restore_loc(I, State);
+restore_locations(T, _State) ->
+ T.
+
is_qlc_q_imported(Forms) ->
[[] || {attribute,_,import,{?APIMOD,FAs}} <- Forms, {?Q,1} <- FAs] =/= [].
@@ -212,13 +286,20 @@ compile_messages(Forms, FormsNoShadows, Options, State) ->
(_QId, Q, GA, A) ->
{Q,GA,A}
end,
- {_,BGens} = qual_fold(BGenF, [], [], FormsNoShadows, State),
+ {_,BGens} = qual_fold(BGenF, [], [], Forms, State),
GenForm = used_genvar_check(FormsNoShadows, State),
?DEBUG("GenForm = ~ts~n", [catch erl_pp:form(GenForm)]),
- WarnFun = fun(Id, LC, A) -> {tag_lines(LC, get_lcid_no(Id)), A} end,
+ {GEs,_} = compile_forms([GenForm], Options),
+ UsedGenVarMsgs = used_genvar_messages(GEs, State),
+ NodeInfo = State#state.node_info,
+ WarnFun = fun(_Id, LC, A) -> {lc_nodes(LC, NodeInfo), A} end,
{WForms,ok} = qlc_mapfold(WarnFun, ok, Forms, State),
- {Es,Ws} = compile_forms(WForms ++ [GenForm], Options),
- {badarg(Forms, State),tagged_messages(Es)++BGens,tagged_messages(Ws)}.
+ {Es,Ws} = compile_forms(WForms, Options),
+ LcEs = lc_messages(Es, NodeInfo),
+ LcWs = lc_messages(Ws, NodeInfo),
+ Errors = badarg(Forms, State) ++ UsedGenVarMsgs++LcEs++BGens,
+ Warnings = LcWs,
+ {Errors,Warnings}.
badarg(Forms, State) ->
F = fun(_Id, {lc,_L,_E,_Qs}=LC, Es) ->
@@ -230,54 +311,39 @@ badarg(Forms, State) ->
{_,E0} = qlc_mapfold(F, [], Forms, State),
E0.
-tag_lines(E, No) ->
- map_lines(fun(Id) ->
- case is_lcid(Id) of
- true -> Id;
- false -> make_lcid(Id, No)
- end
- end, E).
-
-map_lines(F, E) ->
- erl_lint:modify_line(E, F).
-
-tagged_messages(MsL) ->
- [{File,
- [{Loc,Mod,untag(T)} || {Loc0,Mod,T} <- Ms,
- {true,Loc} <- [tloc(Loc0)]]}
- || {File,Ms} <- MsL]
- ++
+lc_nodes(E, NodeInfo) ->
+ erl_parse:map_anno(fun(Anno) ->
+ N = erl_anno:line(Anno),
+ [{N, Data}] = ets:lookup(NodeInfo, N),
+ NData = Data#{inside_lc => true},
+ true = ets:insert(NodeInfo, {N, NData}),
+ Anno
+ end, E).
+
+used_genvar_messages(MsL, S) ->
[{File,[{Loc,?APIMOD,{used_generator_variable,V}}]}
- || {_, Ms} <- MsL,
+ || {_, Ms} <- MsL,
{XLoc,erl_lint,{unbound_var,_}} <- Ms,
- {Loc,File,V} <- [extra(XLoc)]].
-
-tloc({Id,Column}) ->
- {IsLcid,T} = tloc(Id),
- {IsLcid,{T,Column}};
-tloc(Id) ->
- IsLcid = is_lcid(Id),
- {IsLcid,case IsLcid of
- true -> get_lcid_line(Id);
- false -> any
- end}.
-
-extra({extra,Line,File,V}) ->
- {Line,File,V};
-extra({Line,Column}) ->
- case extra(Line) of
- {L,File,V} -> {{L,Column},File,V};
- Else -> Else
- end;
-extra(Else) ->
- Else.
-
-untag([E | Es]) -> [untag(E) | untag(Es)];
-untag(T) when is_tuple(T) -> list_to_tuple(untag(tuple_to_list(T)));
-untag(E) ->
- case is_lcid(E) of
- true -> get_lcid_line(E);
- false -> E
+ {Loc,File,V} <- [genvar_pos(XLoc, S)]].
+
+lc_messages(MsL, NodeInfo) ->
+ [{File,[{Loc,Mod,T} || {Loc,Mod,T} <- Ms, lc_loc(Loc, NodeInfo)]} ||
+ {File,Ms} <- MsL].
+
+lc_loc(N, NodeInfo) ->
+ case ets:lookup(NodeInfo, N) of
+ [{N, #{inside_lc := true}}] ->
+ true;
+ [{N, _}] ->
+ false
+ end.
+
+genvar_pos(Location, S) ->
+ case ets:lookup(S#state.node_info, Location) of
+ [{Location, #{genvar_pos := Pos}}] ->
+ Pos;
+ [] ->
+ Location
end.
%% -> [{Qid,[variable()]}].
@@ -293,6 +359,7 @@ untag(E) ->
%% variables (unless they are unsafe).
%%
intro_variables(FormsNoShadows, State) ->
+ NodeInfo = State#state.node_info,
Fun = fun(QId, {T,_L,P0,_E0}=Q, {GVs,QIds}, Foo) when T =:= b_generate;
T =:= generate ->
PVs = qlc:var_ufold(fun({var,_,V}) -> {QId,V} end, P0),
@@ -302,10 +369,11 @@ intro_variables(FormsNoShadows, State) ->
%% where E is an LC expression consisting of a
%% template mentioning all variables occurring in F.
Vs = ordsets:to_list(qlc:vars(Filter0)),
- Id = QId#qid.lcid,
- LC1 = embed_vars(intro_set_line({QId,f1}, Vs), Id),
- LC2 = embed_vars(intro_set_line({QId,f2}, Vs), Id),
- AnyLine = -1,
+ AnyLine = anno0(),
+ Vars = [{var,AnyLine,V} || V <- Vs],
+ LC = embed_vars(Vars, AnyLine),
+ LC1 = intro_anno(LC, before, QId, NodeInfo),
+ LC2 = intro_anno(LC, 'after', QId, NodeInfo),
Filter = {block,AnyLine,[LC1,Filter0,LC2]},
{Filter,{GVs,[{QId,[]} | QIds]},Foo}
end,
@@ -317,9 +385,15 @@ intro_variables(FormsNoShadows, State) ->
Es0 = compile_errors(FForms),
%% A variable is bound inside the filter if it is not bound before
%% the filter, but it is bound after the filter (obviously).
- Before = [{QId,V} || {{QId,f1},erl_lint,{unbound_var,V}} <- Es0],
- After = [{QId,V} || {{QId,f2},erl_lint,{unbound_var,V}} <- Es0],
- Unsafe = [{QId,V} || {{QId,f2},erl_lint,{unsafe_var,V,_Where}} <- Es0],
+ Before = [{QId,V} ||
+ {L,erl_lint,{unbound_var,V}} <- Es0,
+ {_L,{QId,before}} <- ets:lookup(NodeInfo, L)],
+ After = [{QId,V} ||
+ {L,erl_lint,{unbound_var,V}} <- Es0,
+ {_L,{QId,'after'}} <- ets:lookup(NodeInfo, L)],
+ Unsafe = [{QId,V} ||
+ {L,erl_lint,{unsafe_var,V,_Where}} <- Es0,
+ {_L,{QId,'after'}} <- ets:lookup(NodeInfo, L)],
?DEBUG("Before = ~p~n", [Before]),
?DEBUG("After = ~p~n", [After]),
?DEBUG("Unsafe = ~p~n", [Unsafe]),
@@ -328,9 +402,14 @@ intro_variables(FormsNoShadows, State) ->
I1 = family(IV ++ GenVars),
sofs:to_external(sofs:family_union(sofs:family(QIds), I1)).
-intro_set_line(Tag, Vars) ->
- L = erl_parse:set_line(1, fun(_) -> Tag end),
- [{var,L,V} || V <- Vars].
+intro_anno(LC, Where, QId, NodeInfo) ->
+ Data = {QId,Where},
+ Fun = fun(Anno) ->
+ Location = erl_anno:location(Anno),
+ true = ets:insert(NodeInfo, {Location,Data}),
+ Anno
+ end,
+ erl_parse:map_anno(Fun, save_anno(LC, NodeInfo)).
compile_errors(FormsNoShadows) ->
case compile_forms(FormsNoShadows, []) of
@@ -341,11 +420,8 @@ compile_errors(FormsNoShadows) ->
lists:flatmap(fun({_File,Es}) -> Es end, Errors)
end.
--define(MAX_NUM_OF_LINES, 23). % assume max 1^23 lines (> 8 millions)
-
compile_forms(Forms0, Options) ->
- Forms = [F || F <- Forms0, element(1, F) =/= eof] ++
- [{eof,1 bsl ?MAX_NUM_OF_LINES}],
+ Forms = [F || F <- Forms0, element(1, F) =/= eof] ++ [{eof,anno0()}],
try
case compile:noenv_forms(Forms, compile_options(Options)) of
{ok, _ModName, Ws0} ->
@@ -384,20 +460,23 @@ bitstr_options() ->
%% for each ListExpr. The expression mentions all introduced variables
%% occurring in ListExpr. Running the function through the compiler
%% yields error messages for erroneous use of introduced variables.
-%% The messages have the form
-%% {{extra,LineNo,File,Var},Module,{unbound_var,V}}, where Var is the
-%% original variable name and V is the name invented by no_shadows/2.
%%
used_genvar_check(FormsNoShadows, State) ->
- F = fun(QId, {T, Ln, _P, LE}=Q, {QsIVs0, Exprs0}, IVsSoFar0)
+ NodeInfo = State#state.node_info,
+ F = fun(QId, {T, Ln, _P, LE}=Q, {QsIVs0, Exprs0}, IVsSoFar0)
when T =:= b_generate; T =:= generate ->
- F = fun({var, _, V}=Var) ->
- {var, L, OrigVar} = undo_no_shadows(Var),
- AF = fun(Line) ->
- {extra, Line, get(?QLC_FILE), OrigVar}
- end,
- L2 = erl_parse:set_line(L, AF),
- {var, L2, V}
+ F = fun(Var) ->
+ {var, Anno0, OrigVar} =
+ undo_no_shadows(Var, State),
+ {var, Anno, _} = NewVar = save_anno(Var, NodeInfo),
+ Location0 = erl_anno:location(Anno0),
+ Location = erl_anno:location(Anno),
+ [{Location, Data}] =
+ ets:lookup(NodeInfo, Location),
+ Pos = {Location0,get(?QLC_FILE),OrigVar},
+ NData = Data#{genvar_pos => Pos},
+ true = ets:insert(NodeInfo, {Location, NData}),
+ NewVar
end,
Vs = [Var || {var, _, V}=Var <- qlc:var_fold(F, [], LE),
lists:member(V, IVsSoFar0)],
@@ -411,12 +490,12 @@ used_genvar_check(FormsNoShadows, State) ->
{QsIVs, IVsSoFar} = q_intro_vars(QId, QsIVs0, IVsSoFar0),
{Filter, {QsIVs, Exprs}, IVsSoFar}
end,
- IntroVars = intro_variables(FormsNoShadows, State),
- Acc0 = {IntroVars, [{atom, 0, true}]},
+ Acc0 = {State#state.intro_vars, [{atom, anno0(), true}]},
{_, {[], Exprs}} = qual_fold(F, Acc0, [], FormsNoShadows, State),
FunctionNames = [Name || {function, _, Name, _, _} <- FormsNoShadows],
UniqueFName = qlc:aux_name(used_genvar, 1, sets:from_list(FunctionNames)),
- {function,0,UniqueFName,0,[{clause,0,[],[],lists:reverse(Exprs)}]}.
+ A = anno0(),
+ {function,A,UniqueFName,0,[{clause,A,[],[],lists:reverse(Exprs)}]}.
q_intro_vars(QId, [{QId, IVs} | QsIVs], IVsSoFar) -> {QsIVs, IVs ++ IVsSoFar}.
@@ -514,7 +593,8 @@ q_intro_vars(QId, [{QId, IVs} | QsIVs], IVsSoFar) -> {QsIVs, IVs ++ IVsSoFar}.
%% (calling LEf returns the objects generated by LE).
transform(FormsNoShadows, State) ->
- IntroVars = intro_variables(FormsNoShadows, State),
+ _ = erlang:system_flag(backtrace_depth, 500),
+ IntroVars = State#state.intro_vars,
AllVars = sets:from_list(ordsets:to_list(qlc:vars(FormsNoShadows))),
?DEBUG("AllVars = ~p~n", [sets:to_list(AllVars)]),
F1 = fun(QId, {generate,_,P,LE}, Foo, {GoI,SI}) ->
@@ -588,8 +668,8 @@ transform(FormsNoShadows, State) ->
[{match,L,{var,L,Fun},FunC},
{call,L,{var,L,Fun},As0}]}]}},
{ok, OrigE0} = dict:find(Id, Source),
- OrigE = undo_no_shadows(OrigE0),
- QCode = qcode(OrigE, XQCs, Source, L),
+ OrigE = undo_no_shadows(OrigE0, State),
+ QCode = qcode(OrigE, XQCs, Source, L, State),
Qdata = qdata(XQCs, L),
TemplateInfo =
template_columns(Qs, E, AllIVs, Dependencies, State),
@@ -598,7 +678,7 @@ transform(FormsNoShadows, State) ->
Opt = opt_info(TemplateInfo, SizeInfo, JoinInfo, MSQs, L,
EqColumnConstants, EqualColumnConstants),
LCTuple =
- case qlc_kind(OrigE, Qs) of
+ case qlc_kind(OrigE, Qs, State) of
qlc ->
{tuple,L,[?A(qlc_v1),FunW,QCode,Qdata,Opt]};
{simple, PL, LE, V} ->
@@ -612,7 +692,7 @@ transform(FormsNoShadows, State) ->
end,
{NForms,{[],XW}} = qlc_mapfold(F2, {IntroVars,[]}, ModifiedForms1, State),
display_forms(NForms),
- {restore_line_numbers(NForms), State#state{xwarnings = XW}}.
+ {NForms, State#state{xwarnings = XW}}.
join_kind(Qs, LcL, AllIVs, Dependencies, State) ->
{EqualCols2, EqualColsN} = equal_columns(Qs, AllIVs, Dependencies, State),
@@ -623,20 +703,21 @@ join_kind(Qs, LcL, AllIVs, Dependencies, State) ->
if
EqualColsN =/= []; MatchColsN =/= [] ->
{[],
- [{get(?QLC_FILE),[{abs(LcL),?APIMOD,too_complex_join}]}]};
+ [{get(?QLC_FILE),[{LcL,?APIMOD,too_complex_join}]}]};
EqualCols2 =:= [], MatchCols2 =:= [] ->
{[], []};
length(Tables) > 2 ->
{[],
- [{get(?QLC_FILE),[{abs(LcL),?APIMOD,too_many_joins}]}]};
+ [{get(?QLC_FILE),[{LcL,?APIMOD,too_many_joins}]}]};
EqualCols2 =:= MatchCols2 ->
{EqualCols2, []};
true ->
{{EqualCols2, MatchCols2}, []}
end.
-qlc_kind(OrigE, Qs) ->
- {OrigFilterData, OrigGeneratorData} = qual_data(undo_no_shadows(Qs)),
+qlc_kind(OrigE, Qs, State) ->
+ {OrigFilterData, OrigGeneratorData} =
+ qual_data(undo_no_shadows(Qs, State)),
OrigAllFilters = filters_as_one(OrigFilterData),
{_FilterData, GeneratorData} = qual_data(Qs),
case {OrigE, OrigAllFilters, OrigGeneratorData} of
@@ -663,12 +744,12 @@ warn_failing_qualifiers(Qualifiers, AllIVs, Dependencies, State) ->
lists:foldl(fun({_QId,{fil,_Filter}}, {[]=Frames,Warnings}) ->
{Frames,Warnings};
({_QId,{fil,Filter}}, {Frames,Warnings}) ->
- case filter(set_line(Filter, 0), Frames, BindFun,
+ case filter(reset_anno(Filter), Frames, BindFun,
State, Imported) of
[] ->
{[],
[{get(?QLC_FILE),
- [{abs_loc(element(2, Filter)),?APIMOD,
+ [{loc(element(2, Filter)),?APIMOD,
nomatch_filter}]} | Warnings]};
Frames1 ->
{Frames1,Warnings}
@@ -678,7 +759,7 @@ warn_failing_qualifiers(Qualifiers, AllIVs, Dependencies, State) ->
{failed, _, _} ->
{Frames,
[{get(?QLC_FILE),
- [{abs_loc(element(2, Pattern)),?APIMOD,
+ [{loc(element(2, Pattern)),?APIMOD,
nomatch_pattern}]} | Warnings]};
_ ->
{Frames,Warnings}
@@ -751,8 +832,8 @@ opt_constants(L, ColumnConstants) ->
|| IdNo <- Ns]
++ [{clause,L,[?V('_')],[],[?A(no_column_fun)]}].
-abstr(Term, Line) ->
- erl_parse:abstract(Term, Line).
+abstr(Term, Anno) ->
+ erl_parse:abstract(Term, loc(Anno)).
%% Extra generators are introduced for join.
join_quals(JoinInfo, QCs, L, LcNo, ExtraConstants, AllVars) ->
@@ -837,9 +918,10 @@ join_handle(AP, L, [F, H, O, C], Constants) ->
{{var, _, _}, []} ->
{'fun',L,{clauses,[{clause,L,[H],[],[H]}]}};
_ ->
+ A = anno0(),
G0 = [begin
- Call = {call,0,{atom,0,element},[{integer,0,Col},O]},
- list2op([{op,0,Op,Con,Call} || {Con,Op} <- Cs], 'or')
+ Call = {call,A,{atom,A,element},[{integer,A,Col},O]},
+ list2op([{op,A,Op,Con,Call} || {Con,Op} <- Cs], 'or')
end || {Col,Cs} <- Constants],
G = if G0 =:= [] -> G0; true -> [G0] end,
CC1 = {clause,L,[AP],G,[{cons,L,O,closure({call,L,F,[F,C]},L)}]},
@@ -876,14 +958,15 @@ join_handle_constants(QId, ExtraConstants) ->
%% order the traverse fun would return them.
column_fun(Columns, QualifierNumber, LcL) ->
+ A = anno0(),
ColCls0 =
[begin
true = Vs0 =/= [], % at least one value to look up
Vs1 = list2cons(Vs0),
- Fils1 = {tuple,0,[{atom,0,FTag},
+ Fils1 = {tuple,A,[{atom,A,FTag},
lists:foldr
- (fun(F, A) -> {cons,0,{integer,0,F},A}
- end, {nil,0}, Fils)]},
+ (fun(F, Ac) -> {cons,A,{integer,A,F},Ac}
+ end, {nil,A}, Fils)]},
Tag = case ordsets:to_list(qlc:vars(Vs1)) of
Imp when length(Imp) > 0, % imported vars
length(Vs0) > 1 ->
@@ -891,13 +974,13 @@ column_fun(Columns, QualifierNumber, LcL) ->
_ ->
values
end,
- Vs = {tuple,0,[{atom,0,Tag},Vs1,Fils1]},
- {clause,0,[erl_parse:abstract(Col)],[],[Vs]}
+ Vs = {tuple,A,[{atom,A,Tag},Vs1,Fils1]},
+ {clause,A,[erl_parse:abstract(Col)],[],[Vs]}
end ||
{{CIdNo,Col}, Vs0, {FTag,Fils}} <- Columns,
CIdNo =:= QualifierNumber]
- ++ [{clause,0,[{var,0,'_'}],[],[{atom,0,false}]}],
- ColCls = set_line(ColCls0, LcL),
+ ++ [{clause,A,[{var,A,'_'}],[],[{atom,A,false}]}],
+ ColCls = set_anno(ColCls0, LcL),
{'fun', LcL, {clauses, ColCls}}.
%% Tries to find columns of the template that (1) are equal to (or
@@ -920,7 +1003,7 @@ template_columns(Qs0, E0, AllIVs, Dependencies, State) ->
MatchColumns = eq_columns2(Qs, AllIVs, Dependencies, State),
Equal = template_cols(EqualColumns),
Match = template_cols(MatchColumns),
- L = 0,
+ L = anno0(),
if
Match =:= Equal ->
[{?V('_'), Match}];
@@ -947,7 +1030,7 @@ template_cols(ColumnClasses) ->
template_as_pattern(E) ->
P = simple_template(E),
- {?TID,foo,foo,{gen,P,{nil,0}}}.
+ {?TID,foo,foo,{gen,P,{nil,anno0()}}}.
simple_template({call,L,{remote,_,{atom,_,erlang},{atom,_,element}}=Call,
[{integer,_,I}=A1,A2]}) when I > 0 ->
@@ -1004,10 +1087,10 @@ match_spec_quals(Template, Dependencies, Qualifiers, State) ->
GQId =:= QId2,
{FQId,{fil,F}}=Filter <- Filters, % guard filters only
FQId =:= QId]
- ++ [{GId#qid.no,Pattern,[],{atom,0,true}} ||
+ ++ [{GId#qid.no,Pattern,[],{atom,anno0(),true}} ||
{GId,{gen,Pattern,_}} <- GeneratorData,
lists:member(GId, NoFilterGIds)],
- E = {nil, 0},
+ E = {nil, anno0()},
GF = [{{GNum,Pattern},Filter} ||
{GNum,Pattern,Filter,F} <- Candidates,
no =/= try_ms(E, Pattern, F, State)],
@@ -1024,7 +1107,7 @@ match_spec_quals(Template, Dependencies, Qualifiers, State) ->
%% expressione can be replaced by a match specification.
[{GNum, AbstrMS, all}]
catch _:_ ->
- {TemplVar, _} = anon_var({var,0,'_'}, 0),
+ {TemplVar, _} = anon_var({var,anno0(),'_'}, 0),
[one_gen_match_spec(GNum, Pattern, GFilterData, State, TemplVar) ||
{{GNum,Pattern},GFilterData} <- GFFL]
end.
@@ -1038,7 +1121,7 @@ gen_ms(E, Pattern, GFilterData, State) ->
{ok, MS, AMS} = try_ms(E, Pattern, filters_as_one(GFilterData), State),
case MS of
[{'$1',[true],['$1']}] ->
- {atom, 0, no_match_spec};
+ {atom, anno0(), no_match_spec};
_ ->
AMS
end.
@@ -1060,7 +1143,7 @@ pattern_as_template({match,_,_E,{var,_,_}=V}=P, _TemplVar) ->
pattern_as_template({match,_,{var,_,_}=V,_E}=P, _TemplVar) ->
{V, P};
pattern_as_template(E, TemplVar) ->
- L = 0,
+ L = anno0(),
{TemplVar, {match, L, E, TemplVar}}.
%% Tries to find columns which are compared or matched against
@@ -1203,7 +1286,7 @@ lu_skip(ColConstants, FilterData, PatternFrame, PatternVars,
ColFil = [{Column, FId#qid.no} ||
{FId,{fil,Fil}} <-
filter_list(FilterData, Dependencies, State),
- [] =/= (SFs = safe_filter(set_line(Fil, 0), PatternFrames,
+ [] =/= (SFs = safe_filter(reset_anno(Fil), PatternFrames,
BindFun, State, Imported)),
{GId,PV} <- PatternVars,
[] =/=
@@ -1392,7 +1475,7 @@ join_skip(JoinClasses, FilterData, PatternFrame, PatternVars, Dependencies,
JF = unify(JoinOp, V1, V2, JF2, BindFun, Imported),
%% "Run" the filter:
- SFs = safe_filter(set_line(Fil, 0), PatternFrames,
+ SFs = safe_filter(reset_anno(Fil), PatternFrames,
BindFun, State, Imported),
JImp = qlc:vars([SFs, JF]), % kludge
lists:all(fun(Frame) ->
@@ -1403,7 +1486,7 @@ join_skip(JoinClasses, FilterData, PatternFrame, PatternVars, Dependencies,
filter_info(FilterData, AllIVs, Dependencies, State) ->
FilterList = filter_list(FilterData, Dependencies, State),
- Filter0 = set_line(filters_as_one(FilterList), 0),
+ Filter0 = reset_anno(filters_as_one(FilterList)),
Anon0 = 0,
{Filter, Anon1} = anon_var(Filter0, Anon0),
Imported = ordsets:subtract(qlc:vars(Filter), % anonymous too
@@ -1510,7 +1593,7 @@ pattern(P0, AnonI, Frame0, BindFun, State) ->
catch _:_ -> P0 % template, records already expanded
end,
%% Makes test for equality simple:
- P2 = set_line(P1, 0),
+ P2 = reset_anno(P1),
{P3, AnonN} = anon_var(P2, AnonI),
{P4, F1} = match_in_pattern(tuple2cons(P3), Frame0, BindFun),
{P, F2} = element_calls(P4, F1, BindFun, _Imp=[]), % kludge for templates
@@ -1550,8 +1633,11 @@ anon_var(E, AnonI) ->
(Var, N) -> {Var, N}
end, AnonI, E).
-set_line(T, L) ->
- map_lines(fun(_L) -> L end, T).
+reset_anno(T) ->
+ set_anno(T, anno0()).
+
+set_anno(T, A) ->
+ erl_parse:map_anno(fun(_L) -> A end, T).
-record(fstate, {state, bind_fun, imported}).
@@ -1673,7 +1759,7 @@ frames_to_columns(Fs, PatternVars, DerefFun, SelectorFun, Imp, CompOp) ->
%% same variables have to be the representatives in every frame.)
SizesVarsL =
[begin
- PatVar = {var,0,PV},
+ PatVar = {var,anno0(),PV},
PatternSizes = [pattern_size([F], PatVar, false) ||
F <- Fs],
MaxPZ = lists:max([0 | PatternSizes -- [undefined]]),
@@ -1692,8 +1778,8 @@ frames_to_columns(Fs, PatternVars, DerefFun, SelectorFun, Imp, CompOp) ->
frames2cols(Fs, PatN, PatSizes, Vars, DerefFun, SelectorFun, CompOp) ->
Rs = [ begin
RL = [{{PatN,Col},cons2tuple(element(2, Const))} ||
- {V, Col} <- lists:zip(sublist(Vars, PatSz),
- seq(1, PatSz)),
+ {V, Col} <- lists:zip(lists:sublist(Vars, PatSz),
+ lists:seq(1, PatSz)),
%% Do not handle the case where several
%% values compare equal, e.g. "X =:= 1
%% andalso X == 1.0". Looking up both
@@ -1722,11 +1808,11 @@ frames2cols(Fs, PatN, PatSizes, Vars, DerefFun, SelectorFun, CompOp) ->
[C || {_,Vs}=C <- sofs:to_external(Cs), not col_ignore(Vs, CompOp)].
pat_vars(N) ->
- [unique_var() || _ <- seq(1, N)].
+ [unique_var() || _ <- lists:seq(1, N)].
pat_tuple(Sz, Vars) when is_integer(Sz), Sz > 0 ->
TupleTail = unique_var(),
- {cons_tuple, list2cons(sublist(Vars, Sz) ++ TupleTail)};
+ {cons_tuple, list2cons(lists:sublist(Vars, Sz) ++ TupleTail)};
pat_tuple(_, _Vars) ->
unique_var().
@@ -1740,7 +1826,7 @@ col_ignore(Vs, '==') ->
pattern_sizes(PatternVars, Fs) ->
[{QId#qid.no, Size} ||
{QId,PV} <- PatternVars,
- undefined =/= (Size = pattern_size(Fs, {var,0,PV}, true))].
+ undefined =/= (Size = pattern_size(Fs, {var,anno0(),PV}, true))].
pattern_size(Fs, PatternVar, Exact) ->
Fun = fun(F) -> (deref_pattern(_Imported = []))(PatternVar, F) end,
@@ -1768,7 +1854,8 @@ prep_expr(E, F, S, BF, Imported) ->
element_calls(tuple2cons(expand_expr_records(E, S)), F, BF, Imported).
unify_column(Frame, Var, Col, BindFun, Imported) ->
- Call = {call,0,{atom,0,element},[{integer,0,Col}, {var,0,Var}]},
+ A = anno0(),
+ Call = {call,A,{atom,A,element},[{integer,A,Col}, {var,A,Var}]},
element_calls(Call, Frame, BindFun, Imported).
%% cons_tuple is used for representing {V1, ..., Vi | TupleTail}.
@@ -1800,19 +1887,21 @@ element_calls(E, F, _BF, _Imported) ->
{E, F}.
unique_var() ->
- {var, 0, make_ref()}.
+ {var, anno0(), make_ref()}.
is_unique_var({var, _L, V}) ->
is_reference(V).
expand_pattern_records(P, State) ->
- E = {'case',0,{atom,0,true},[{clause,0,[P],[],[{atom,0,true}]}]},
- {'case',_,_,[{clause,0,[NP],_,_}]} = expand_expr_records(E, State),
+ A = anno0(),
+ E = {'case',A,{atom,A,true},[{clause,A,[P],[],[{atom,A,true}]}]},
+ {'case',_,_,[{clause,A,[NP],_,_}]} = expand_expr_records(E, State),
NP.
expand_expr_records(E, State) ->
RecordDefs = State#state.records,
- Forms = RecordDefs ++ [{function,1,foo,0,[{clause,1,[],[],[pe(E)]}]}],
+ A = anno1(),
+ Forms = RecordDefs ++ [{function,A,foo,0,[{clause,A,[],[],[pe(E)]}]}],
[{function,_,foo,0,[{clause,_,[],[],[NE]}]}] =
erl_expand_records:module(Forms, [no_strict_record_tests]),
NE.
@@ -2126,15 +2215,15 @@ tuple2cons(E) ->
E.
list2cons([E | Es]) ->
- {cons, 0, E, list2cons(Es)};
+ {cons, anno0(), E, list2cons(Es)};
list2cons([]) ->
- {nil, 0};
+ {nil, anno0()};
list2cons(E) ->
E.
%% Returns {..., Variable} if Variable is a tuple tail.
cons2tuple({cons_tuple, Es}) ->
- {tuple, 0, cons2list(Es)};
+ {tuple, anno0(), cons2list(Es)};
cons2tuple(T) when is_tuple(T) ->
list_to_tuple(cons2tuple(tuple_to_list(T)));
cons2tuple([E | Es]) ->
@@ -2173,11 +2262,10 @@ bindings_subset(F1, F2, Imp) ->
%% not to have guard semantics, affected filters will have to be
%% recognized and excluded here as well.
try_ms(E, P, Fltr, State) ->
- L = 1,
+ L = anno1(),
Fun = {'fun',L,{clauses,[{clause,L,[P],[[Fltr]],[E]}]}},
Expr = {call,L,{remote,L,{atom,L,ets},{atom,L,fun2ms}},[Fun]},
- Form0 = {function,L,foo,0,[{clause,L,[],[],[Expr]}]},
- Form = restore_line_numbers(Form0),
+ Form = {function,L,foo,0,[{clause,L,[],[],[Expr]}]},
X = ms_transform:parse_transform(State#state.records ++ [Form], []),
case catch
begin
@@ -2194,11 +2282,11 @@ try_ms(E, P, Fltr, State) ->
end.
filters_as_one([]) ->
- {atom, 0, true};
+ {atom, anno0(), true};
filters_as_one(FilterData) ->
[{_,{fil,Filter1}} | Filters] = lists:reverse(FilterData),
lists:foldr(fun({_QId,{fil,Filter}}, AbstF) ->
- {op,0,'andalso',Filter,AbstF}
+ {op,anno0(),'andalso',Filter,AbstF}
end, Filter1, Filters).
qual_data(Qualifiers) ->
@@ -2233,38 +2321,40 @@ qdata([], L) ->
{nil,L}.
qcon(Cs) ->
- list2cons([{tuple,0,[{integer,0,Col},list2cons(qcon1(ConstOps))]} ||
+ A = anno0(),
+ list2cons([{tuple,A,[{integer,A,Col},list2cons(qcon1(ConstOps))]} ||
{Col,ConstOps} <- Cs]).
qcon1(ConstOps) ->
- [{tuple,0,[Const,abstr(Op, 0)]} || {Const,Op} <- ConstOps].
+ A = anno0(),
+ [{tuple,A,[Const,abstr(Op, A)]} || {Const,Op} <- ConstOps].
%% The original code (in Source) is used for filters and the template
%% since the translated code can have QLCs and we don't want them to
%% be visible.
-qcode(E, QCs, Source, L) ->
+qcode(E, QCs, Source, L, State) ->
CL = [begin
Bin = term_to_binary(C, [compressed]),
{bin, L, [{bin_element, L,
{string, L, binary_to_list(Bin)},
default, default}]}
end || {_,C} <- lists:keysort(1, [{qlc:template_state(),E} |
- qcode(QCs, Source)])],
+ qcode(QCs, Source, State)])],
{'fun', L, {clauses, [{clause, L, [], [], [{tuple, L, CL}]}]}}.
-qcode([{_QId, {_QIvs, {{gen,P,_LE,_GV}, GoI, _SI}}} | QCs], Source) ->
- [{GoI,undo_no_shadows(P)} | qcode(QCs, Source)];
-qcode([{QId, {_QIVs, {{fil,_F}, GoI, _SI}}} | QCs], Source) ->
+qcode([{_QId, {_QIvs, {{gen,P,_LE,_GV}, GoI, _SI}}} | QCs], Source, State) ->
+ [{GoI,undo_no_shadows(P, State)} | qcode(QCs, Source, State)];
+qcode([{QId, {_QIVs, {{fil,_F}, GoI, _SI}}} | QCs], Source, State) ->
{ok,OrigF} = dict:find(QId, Source),
- [{GoI,undo_no_shadows(OrigF)} | qcode(QCs, Source)];
-qcode([], _Source) ->
+ [{GoI,undo_no_shadows(OrigF, State)} | qcode(QCs, Source, State)];
+qcode([], _Source, _State) ->
[].
closure(Code, L) ->
{'fun',L,{clauses,[{clause,L,[],[],[Code]}]}}.
-simple(L, Var, Init, Line) ->
- {tuple,L,[?A(simple_v1),?A(Var),Init,?I(Line)]}.
+simple(L, Var, Init, Anno) ->
+ {tuple,L,[?A(simple_v1),?A(Var),Init,abstr(loc(Anno), Anno)]}.
clauses([{QId,{QIVs,{QualData,GoI,S}}} | QCs], RL, Fun, Go, NGV, E, IVs,St) ->
?DEBUG("QIVs = ~p~n", [QIVs]),
@@ -2426,19 +2516,22 @@ aux_var(Name, LcN, QN, N, AllVars) ->
qlc:aux_name(lists:concat([Name, LcN, '_', QN, '_']), N, AllVars).
no_compiler_warning(L) ->
- erl_parse:set_line(L, fun(Line) -> -abs(Line) end).
+ Anno = erl_anno:new(L),
+ erl_anno:set_generated(true, Anno).
-abs_loc(L) ->
- loc(erl_parse:set_line(L, fun(Line) -> abs(Line) end)).
-
-loc(L) ->
- {location,Location} = erl_parse:get_attribute(L, location),
- Location.
+loc(A) ->
+ erl_anno:location(A).
list2op([E], _Op) ->
E;
list2op([E | Es], Op) ->
- {op,0,Op,E,list2op(Es, Op)}.
+ {op,anno0(),Op,E,list2op(Es, Op)}.
+
+anno0() ->
+ erl_anno:new(0).
+
+anno1() ->
+ erl_anno:new(1).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -2491,13 +2584,61 @@ qlcmf(T, _F, _Imp, A, No) ->
occ_vars(E) ->
qlc:var_fold(fun({var,_L,V}) -> V end, [], E).
+%% Every Anno is replaced by a unique number. The number is used in a
+%% table that holds data about the abstract node where Anno resides.
+%% In particular, the original location is kept there, so that the
+%% original abstract code can be re-created.
+save_anno(Abstr, NodeInfo) ->
+ F = fun(Anno) ->
+ N = next_slot(NodeInfo),
+ Location = erl_anno:location(Anno),
+ Data = {N, #{location => Location}},
+ true = ets:insert(NodeInfo, Data),
+ erl_anno:new(N)
+ end,
+ erl_parse:map_anno(F, Abstr).
+
+next_slot(T) ->
+ I = ets:update_counter(T, var_n, 1),
+ case ets:lookup(T, I) of
+ [] ->
+ I;
+ _ ->
+ next_slot(T)
+ end.
+
+restore_anno(Abstr, NodeInfo) ->
+ F = fun(Anno) ->
+ Location = erl_anno:location(Anno),
+ case ets:lookup(NodeInfo, Location) of
+ [{Location, Data}] ->
+ OrigLocation = maps:get(location, Data),
+ erl_anno:set_location(OrigLocation, Anno);
+ [{Location}] -> % generated code
+ Anno;
+ [] ->
+ Anno
+ end
+ end,
+ erl_parse:map_anno(F, Abstr).
+
+restore_loc(Location, #state{node_info = NodeInfo}) ->
+ case ets:lookup(NodeInfo, Location) of
+ [{Location, #{location := OrigLocation}}] ->
+ OrigLocation;
+ [{Location}] ->
+ Location;
+ [] ->
+ Location
+ end.
+
no_shadows(Forms0, State) ->
%% Variables that may shadow other variables are introduced in
%% LCs and Funs. Such variables (call them SV, Shadowing
%% Variables) are now renamed. Each (new) occurrence in a pattern
%% is assigned an index (integer), unique in the file.
%%
- %% The state {LastIndex,ActiveVars,UsedVars,AllVars,Singletons}
+ %% The state {LastIndex,ActiveVars,UsedVars,AllVars,Singletons,State}
%% holds the last index used for each SV (LastIndex), the SVs in
%% the current scope (ActiveVars), used SVs (UsedVars, the indexed
%% name is the key), all variables occurring in the file
@@ -2507,16 +2648,15 @@ no_shadows(Forms0, State) ->
%% the indexed name of an SV occurs in the file, next index is
%% tried (to avoid mixing up introduced names with existing ones).
%%
- %% The original names of variables are kept in the line number
- %% position of the abstract code: {var, {nos, OriginalName, L},
- %% NewName}. undo_no_shadows/1 re-creates the original code.
+ %% The original names of variables are kept in a table in State.
+ %% undo_no_shadows/2 re-creates the original code.
AllVars = sets:from_list(ordsets:to_list(qlc:vars(Forms0))),
?DEBUG("nos AllVars = ~p~n", [sets:to_list(AllVars)]),
VFun = fun(_Id, LC, Vs) -> nos(LC, Vs) end,
LI = ets:new(?APIMOD,[]),
UV = ets:new(?APIMOD,[]),
D0 = dict:new(),
- S1 = {LI, D0, UV, AllVars, []},
+ S1 = {LI, D0, UV, AllVars, [], State},
_ = qlc_mapfold(VFun, S1, Forms0, State),
?DEBUG("UsedIntroVars = ~p~n", [ets:match_object(UV, '_')]),
Singletons = ets:select(UV, ets:fun2ms(fun({K,0}) -> K end)),
@@ -2524,7 +2664,7 @@ no_shadows(Forms0, State) ->
true = ets:delete_all_objects(LI),
true = ets:delete_all_objects(UV),
%% Do it again, this time we know which variables are singletons.
- S2 = {LI, D0, UV, AllVars, Singletons},
+ S2 = {LI, D0, UV, AllVars, Singletons, State},
{Forms,_} = qlc_mapfold(VFun, S2, Forms0, State),
true = ets:delete(LI),
true = ets:delete(UV),
@@ -2568,11 +2708,11 @@ nos({lc,L,E0,Qs0}, S) ->
{Qs, S1} = lists:mapfoldl(F, S, Qs0),
{E, _} = nos(E0, S1),
{{lc,L,E,Qs}, S};
-nos({var,L,V}=Var, {_LI,Vs,UV,_A,_Sg}=S) when V =/= '_' ->
+nos({var,L,V}=Var, {_LI,Vs,UV,_A,_Sg,State}=S) when V =/= '_' ->
case used_var(V, Vs, UV) of
{true, VN} ->
- NL = nos_var(L, V),
- {{var,NL,VN}, S};
+ nos_var(L, V, State),
+ {{var,L,VN}, S};
false ->
{Var, S}
end;
@@ -2590,7 +2730,7 @@ nos_pattern([P0 | Ps0], S0, PVs0) ->
{P, S1, PVs1} = nos_pattern(P0, S0, PVs0),
{Ps, S, PVs} = nos_pattern(Ps0, S1, PVs1),
{[P | Ps], S, PVs};
-nos_pattern({var,L,V}, {LI,Vs0,UV,A,Sg}, PVs0) when V =/= '_' ->
+nos_pattern({var,L,V}, {LI,Vs0,UV,A,Sg,State}, PVs0) when V =/= '_' ->
{Name, Vs, PVs} =
case lists:keyfind(V, 1, PVs0) of
{V, VN} ->
@@ -2604,16 +2744,25 @@ nos_pattern({var,L,V}, {LI,Vs0,UV,A,Sg}, PVs0) when V =/= '_' ->
end,
{N, Vs1, [{V,VN} | PVs0]}
end,
- NL = nos_var(L, V),
- {{var,NL,Name}, {LI,Vs,UV,A,Sg}, PVs};
+ nos_var(L, V, State),
+ {{var,L,Name}, {LI,Vs,UV,A,Sg,State}, PVs};
nos_pattern(T, S0, PVs0) when is_tuple(T) ->
{TL, S, PVs} = nos_pattern(tuple_to_list(T), S0, PVs0),
{list_to_tuple(TL), S, PVs};
nos_pattern(T, S, PVs) ->
{T, S, PVs}.
-nos_var(L, Name) ->
- erl_parse:set_line(L, fun(Line) -> {nos,Name,Line} end).
+nos_var(Anno, Name, State) ->
+ NodeInfo = State#state.node_info,
+ Location = erl_anno:location(Anno),
+ case ets:lookup(NodeInfo, Location) of
+ [{Location, #{name := _}}] ->
+ true;
+ [{Location, Data}] ->
+ true = ets:insert(NodeInfo, {Location, Data#{name => Name}});
+ [] -> % cannot happen
+ true
+ end.
used_var(V, Vs, UV) ->
case dict:find(V, Vs) of
@@ -2638,69 +2787,30 @@ next_var(V, Vs, AllVars, LI, UV) ->
{VN, NVs}
end.
-undo_no_shadows(E) ->
- var_map(fun undo_no_shadows1/1, E).
-
-undo_no_shadows1({var, L, _}=Var) ->
- case erl_parse:get_attribute(L, line) of
- {line,{nos,V,_VL}} ->
- NL = erl_parse:set_line(L, fun({nos,_V,VL}) -> VL end),
- undo_no_shadows1({var, NL, V});
- _Else ->
- Var
- end.
-
-restore_line_numbers(E) ->
- var_map(fun restore_line_numbers1/1, E).
+undo_no_shadows(E, State) ->
+ var_map(fun(Anno) -> undo_no_shadows1(Anno, State) end, E).
-restore_line_numbers1({var, L, V}=Var) ->
- case erl_parse:get_attribute(L, line) of
- {line,{nos,_,_}} ->
- NL = erl_parse:set_line(L, fun({nos,_V,VL}) -> VL end),
- restore_line_numbers1({var, NL, V});
- _Else ->
+undo_no_shadows1({var, Anno, _}=Var, State) ->
+ Location = erl_anno:location(Anno),
+ NodeInfo = State#state.node_info,
+ case ets:lookup(NodeInfo, Location) of
+ [{Location, #{name := Name}}] ->
+ {var, Anno, Name};
+ _ ->
Var
end.
%% QLC identifier.
%% The first one encountered in the file has No=1.
-make_lcid(Attrs, No) when is_integer(No), No > 0 ->
- F = fun(Line) when is_integer(Line), Line < (1 bsl ?MAX_NUM_OF_LINES) ->
- sgn(Line) * ((No bsl ?MAX_NUM_OF_LINES) + sgn(Line) * Line)
- end,
- erl_parse:set_line(Attrs, F).
-
-is_lcid(Attrs) ->
- try
- {line,Id} = erl_parse:get_attribute(Attrs, line),
- is_integer(Id) andalso (abs(Id) > (1 bsl ?MAX_NUM_OF_LINES))
- catch _:_ ->
- false
- end.
-
-get_lcid_no(IdAttrs) ->
- {line,Id} = erl_parse:get_attribute(IdAttrs, line),
- abs(Id) bsr ?MAX_NUM_OF_LINES.
-
-get_lcid_line(IdAttrs) ->
- {line,Id} = erl_parse:get_attribute(IdAttrs, line),
- sgn(Id) * (abs(Id) band ((1 bsl ?MAX_NUM_OF_LINES) - 1)).
+make_lcid(Anno, No) when is_integer(No), No > 0 ->
+ {No, erl_anno:line(Anno)}.
-sgn(X) when X >= 0 ->
- 1;
-sgn(X) when X < 0 ->
- -1.
+get_lcid_no({No, _Line}) ->
+ No.
-seq(S, E) when S - E =:= 1 ->
- [];
-seq(S, E) ->
- lists:seq(S, E).
-
-sublist(_, 0) ->
- [];
-sublist(L, N) ->
- lists:sublist(L, N).
+get_lcid_line({_No, Line}) ->
+ Line.
qid(LCId, No) ->
#qid{no = No, lcid = LCId}.