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-rw-r--r--lib/compiler/src/v3_core.erl130
1 files changed, 60 insertions, 70 deletions
diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl
index c954d21e59..0941ad5dd5 100644
--- a/lib/compiler/src/v3_core.erl
+++ b/lib/compiler/src/v3_core.erl
@@ -1,18 +1,19 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2014. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2015. 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
-%% 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/.
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
%%
-%% 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.
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
%%
%% %CopyrightEnd%
%%
@@ -83,8 +84,6 @@
-include("core_parse.hrl").
--define(REC_OFFSET, 100000000). % Also in erl_expand_records.
-
%% Internal core expressions and help functions.
%% N.B. annotations fields in place as normal Core expressions.
@@ -170,8 +169,10 @@ form({attribute,_,file,{File,_Line}}, {Fs,As,Ws,_}, _Opts) ->
form({attribute,_,_,_}=F, {Fs,As,Ws,File}, _Opts) ->
{Fs,[attribute(F)|As],Ws,File}.
-attribute({attribute,Line,Name,Val}) ->
- {#c_literal{val=Name, anno=[Line]}, #c_literal{val=Val, anno=[Line]}}.
+attribute(Attribute) ->
+ Fun = fun(A) -> [erl_anno:location(A)] end,
+ {attribute,Line,Name,Val} = erl_parse:map_anno(Fun, Attribute),
+ {#c_literal{val=Name, anno=Line}, #c_literal{val=Val, anno=Line}}.
%% function_dump(module_info,_,_,_) -> ok;
%% function_dump(Name,Arity,Format,Terms) ->
@@ -538,19 +539,8 @@ expr({tuple,L,Es0}, St0) ->
{annotate_tuple(A, Es1, St1),Eps,St1};
expr({map,L,Es0}, St0) ->
map_build_pairs(#c_literal{val=#{}}, Es0, full_anno(L, St0), St0);
-expr({map,L,M0,Es0}, St0) ->
- try expr_map(M0,Es0,lineno_anno(L, St0),St0) of
- {_,_,_}=Res -> Res
- catch
- throw:{bad_map,Warning} ->
- St = add_warning(L, Warning, St0),
- LineAnno = lineno_anno(L, St),
- As = [#c_literal{anno=LineAnno,val=badarg}],
- {#icall{anno=#a{anno=LineAnno}, %Must have an #a{}
- module=#c_literal{anno=LineAnno,val=erlang},
- name=#c_literal{anno=LineAnno,val=error},
- args=As},[],St}
- end;
+expr({map,L,M,Es}, St) ->
+ expr_map(M, Es, L, St);
expr({bin,L,Es0}, St0) ->
try expr_bin(Es0, full_anno(L, St0), St0) of
{_,_,_}=Res -> Res
@@ -740,7 +730,7 @@ make_bool_switch(L, E, V, T, F, #core{}) ->
make_bool_switch_body(L, E, V, T, F).
make_bool_switch_body(L, E, V, T, F) ->
- NegL = neg_line(abs_line(L)),
+ NegL = no_compiler_warning(L),
Error = {tuple,NegL,[{atom,NegL,badarg},V]},
{'case',NegL,E,
[{clause,NegL,[{atom,NegL,true}],[],[T]},
@@ -751,18 +741,21 @@ make_bool_switch_body(L, E, V, T, F) ->
make_bool_switch_guard(_, E, _, {atom,_,true}, {atom,_,false}) -> E;
make_bool_switch_guard(L, E, V, T, F) ->
- NegL = neg_line(abs_line(L)),
+ NegL = no_compiler_warning(L),
{'case',NegL,E,
[{clause,NegL,[{atom,NegL,true}],[],[T]},
{clause,NegL,[{atom,NegL,false}],[],[F]},
{clause,NegL,[V],[],[V]}
]}.
-expr_map(M0, Es0, A, St0) ->
+expr_map(M0, Es0, L, St0) ->
{M1,Eps0,St1} = safe(M0, St0),
+ Badmap = badmap_term(M1, St1),
+ A = lineno_anno(L, St1),
+ Fc = fail_clause([], [{eval_failure,badmap}|A], Badmap),
case is_valid_map_src(M1) of
true ->
- {M2,Eps1,St2} = map_build_pairs(M1, Es0, A, St1),
+ {M2,Eps1,St2} = map_build_pairs(M1, Es0, full_anno(L, St1), St1),
M3 = case Es0 of
[] -> M1;
[_|_] -> M2
@@ -775,13 +768,23 @@ expr_map(M0, Es0, A, St0) ->
name=#c_literal{anno=A,val=is_map},
args=[M1]}],
body=[M3]}],
- Fc = fail_clause([], [eval_failure|A], #c_literal{val=badarg}),
Eps = Eps0 ++ Eps1,
{#icase{anno=#a{anno=A},args=[],clauses=Cs,fc=Fc},Eps,St2};
false ->
- throw({bad_map,bad_map})
+ %% Not a map source. The update will always fail.
+ St2 = add_warning(L, badmap, St1),
+ #iclause{body=[Fail]} = Fc,
+ {Fail,Eps0,St2}
end.
+badmap_term(_Map, #core{in_guard=true}) ->
+ %% The code generator cannot handle complex error reasons
+ %% in guards. But the exact error reason does not matter anyway
+ %% since it is not user-visible.
+ #c_literal{val=badmap};
+badmap_term(Map, #core{in_guard=false}) ->
+ #c_tuple{es=[#c_literal{val=badmap},Map]}.
+
map_build_pairs(Map, Es0, Ann, St0) ->
{Es,Pre,St1} = map_build_pairs_1(Es0, St0),
{ann_c_map(Ann, Map, Es),Pre,St1}.
@@ -867,10 +870,10 @@ constant_bin_1(Es) ->
({float,_,F}, B) -> {value,F,B};
({atom,_,undefined}, B) -> {value,undefined,B}
end,
- case catch eval_bits:expr_grp(Es, EmptyBindings, EvalFun) of
+ try eval_bits:expr_grp(Es, EmptyBindings, EvalFun) of
{value,Bin,EmptyBindings} ->
- Bin;
- _ ->
+ Bin
+ catch error:_ ->
error
end.
@@ -917,7 +920,7 @@ verify_suitable_fields([]) -> ok.
%% (We don't need an exact result for this purpose.)
count_bits(Int) ->
- count_bits_1(abs_line(Int), 64).
+ count_bits_1(abs(Int), 64).
count_bits_1(0, Bits) -> Bits;
count_bits_1(Int, Bits) -> count_bits_1(Int bsr 64, Bits+64).
@@ -2309,22 +2312,15 @@ bitstr_vars(Segs, Vs) ->
lit_vars(V, lit_vars(S, Vs0))
end, Vs, Segs).
-record_anno(L, St) when L >= ?REC_OFFSET ->
- case member(dialyzer, St#core.opts) of
- true ->
- [record | lineno_anno(L - ?REC_OFFSET, St)];
- false ->
- full_anno(L, St)
- end;
-record_anno(L, St) when L < -?REC_OFFSET ->
- case member(dialyzer, St#core.opts) of
+record_anno(L, St) ->
+ case
+ erl_anno:record(L) andalso member(dialyzer, St#core.opts)
+ of
true ->
- [record | lineno_anno(L + ?REC_OFFSET, St)];
+ [record | lineno_anno(L, St)];
false ->
full_anno(L, St)
- end;
-record_anno(L, St) ->
- full_anno(L, St).
+ end.
full_anno(L, #core{wanted=false}=St) ->
[result_not_wanted|lineno_anno(L, St)];
@@ -2332,13 +2328,10 @@ full_anno(L, #core{wanted=true}=St) ->
lineno_anno(L, St).
lineno_anno(L, St) ->
- {line, Line} = erl_parse:get_attribute(L, line),
- if
- Line < 0 ->
- [-Line] ++ St#core.file ++ [compiler_generated];
- true ->
- [Line] ++ St#core.file
- end.
+ Line = erl_anno:line(L),
+ Generated = erl_anno:generated(L),
+ CompilerGenerated = [compiler_generated || Generated],
+ [Line] ++ St#core.file ++ CompilerGenerated.
get_lineno_anno(Ce) ->
case get_anno(Ce) of
@@ -2346,15 +2339,8 @@ get_lineno_anno(Ce) ->
A when is_list(A) -> A
end.
-location(L) ->
- {location,Location} = erl_parse:get_attribute(L, location),
- Location.
-
-abs_line(L) ->
- erl_parse:set_line(L, fun(Line) -> abs(Line) end).
-
-neg_line(L) ->
- erl_parse:set_line(L, fun(Line) -> -abs(Line) end).
+no_compiler_warning(Anno) ->
+ erl_anno:set_generated(true, Anno).
%%
%% The following three functions are used both with cerl:cerl() and with i()'s
@@ -2395,9 +2381,13 @@ format_error(nomatch) ->
"pattern cannot possibly match";
format_error(bad_binary) ->
"binary construction will fail because of a type mismatch";
-format_error(bad_map) ->
+format_error(badmap) ->
"map construction will fail because of a type mismatch".
-add_warning(Line, Term, #core{ws=Ws,file=[{file,File}]}=St) when Line >= 0 ->
- St#core{ws=[{File,[{location(Line),?MODULE,Term}]}|Ws]};
-add_warning(_, _, St) -> St.
+add_warning(Anno, Term, #core{ws=Ws,file=[{file,File}]}=St) ->
+ case erl_anno:generated(Anno) of
+ false ->
+ St#core{ws=[{File,[{erl_anno:location(Anno),?MODULE,Term}]}|Ws]};
+ true ->
+ St
+ end.
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 14:52:17 +0000