diff options
Diffstat (limited to 'lib/debugger/src/dbg_iload.erl')
| -rw-r--r-- | lib/debugger/src/dbg_iload.erl | 640 |
1 files changed, 314 insertions, 326 deletions
diff --git a/lib/debugger/src/dbg_iload.erl b/lib/debugger/src/dbg_iload.erl index 2ae0c333da..369b456524 100644 --- a/lib/debugger/src/dbg_iload.erl +++ b/lib/debugger/src/dbg_iload.erl @@ -1,18 +1,19 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2010. All Rights Reserved. +%% Copyright Ericsson AB 1998-2015. 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% %% @@ -38,22 +39,25 @@ %% dbg_iserver. We are suspended until the module has been loaded. %%-------------------------------------------------------------------- -spec load_mod(Mod, file:filename(), binary(), ets:tid()) -> - {'ok', Mod} when is_subtype(Mod, atom()). + {'ok', Mod} when Mod :: atom(). load_mod(Mod, File, Binary, Db) -> Flag = process_flag(trap_exit, true), - Pid = spawn_link(fun () -> load_mod1(Mod, File, Binary, Db) end), + Pid = spawn_link(load_mod1(Mod, File, Binary, Db)), receive {'EXIT', Pid, What} -> process_flag(trap_exit, Flag), What end. --spec load_mod1(atom(), file:filename(), binary(), ets:tid()) -> no_return(). +-spec load_mod1(atom(), file:filename(), binary(), ets:tid()) -> + fun(() -> no_return()). load_mod1(Mod, File, Binary, Db) -> - store_module(Mod, File, Binary, Db), - exit({ok, Mod}). + fun() -> + store_module(Mod, File, Binary, Db), + exit({ok, Mod}) + end. %%==================================================================== %% Internal functions @@ -62,22 +66,23 @@ load_mod1(Mod, File, Binary, Db) -> store_module(Mod, File, Binary, Db) -> {interpreter_module, Exp, Abst, Src, MD5} = binary_to_term(Binary), Forms = case abstr(Abst) of - {abstract_v1,Forms0} -> Forms0; - {abstract_v2,Forms0} -> Forms0; + {abstract_v1,_} -> + exit({Mod,too_old_beam_file}); + {abstract_v2,_} -> + exit({Mod,too_old_beam_file}); {raw_abstract_v1,Code0} -> Code = interpret_file_attribute(Code0), {_,_,Forms0,_} = sys_pre_expand:module(Code, []), Forms0 end, dbg_idb:insert(Db, mod_file, File), - dbg_idb:insert(Db, exports, Exp), dbg_idb:insert(Db, defs, []), put(vcount, 0), put(fun_count, 0), put(funs, []), put(mod_md5, MD5), - Attr = store_forms(Forms, Mod, Db, Exp, []), + store_forms(Forms, Mod, Db, Exp), erase(mod_md5), erase(current_function), %% store_funs(Db, Mod), @@ -85,11 +90,10 @@ store_module(Mod, File, Binary, Db) -> erase(funs), erase(fun_count), - dbg_idb:insert(Db, attributes, Attr), NewBinary = store_mod_line_no(Mod, Db, binary_to_list(Src)), dbg_idb:insert(Db, mod_bin, NewBinary), - dbg_idb:insert(Db, mod_raw, <<Src/binary,0:8>>), %% Add eos - dbg_idb:insert(Db, module, Mod). + dbg_idb:insert(Db, mod_raw, <<Src/binary,0:8>>). %% Add eos + %% Adjust line numbers using the file/2 attribute. %% Also take the absolute value of line numbers. %% This simple fix will make the marker point at the correct line @@ -111,27 +115,19 @@ abstr(Term) -> Term. % store_funs_1(Fs, Db, Mod); % store_funs_1([], _, _) -> ok. -store_forms([{function,_,module_info,0,_}|Fs], Mod, Db, Exp, Attr) -> - Cs = [{clause,0,[],[], [{module_info_0,0,Mod}]}], - dbg_idb:insert(Db, {Mod,module_info,0,true}, Cs), - store_forms(Fs, Mod, Db, Exp, Attr); -store_forms([{function,_,module_info,1,_}|Fs], Mod, Db, Exp, Attr) -> - Cs = [{clause,0,[{var,0,'What'}],[], [{module_info_1,0,Mod,[{var,0,'What'}]}]}], - dbg_idb:insert(Db, {Mod,module_info,1,true}, Cs), - store_forms(Fs, Mod, Db, Exp, Attr); -store_forms([{function,_,Name,Arity,Cs0}|Fs], Mod, Db, Exp, Attr) -> +store_forms([{function,_,Name,Arity,Cs0}|Fs], Mod, Db, Exp) -> FA = {Name,Arity}, put(current_function, FA), Cs = clauses(Cs0), Exported = lists:member(FA, Exp), dbg_idb:insert(Db, {Mod,Name,Arity,Exported}, Cs), - store_forms(Fs, Mod, Db, Exp, Attr); -store_forms([{attribute,_,Name,Val}|Fs], Mod, Db, Exp, Attr) -> - store_forms(Fs, Mod, Db, Exp, [{Name,Val}|Attr]); -store_forms([F|_], _Mod, _Db, _Exp, _Attr) -> + store_forms(Fs, Mod, Db, Exp); +store_forms([{attribute,_,_Name,_Val}|Fs], Mod, Db, Exp) -> + store_forms(Fs, Mod, Db, Exp); +store_forms([F|_], _Mod, _Db, _Exp) -> exit({unknown_form,F}); -store_forms([], _, _, _, Attr) -> - lists:reverse(Attr). +store_forms([], _, _, _) -> + ok. store_mod_line_no(Mod, Db, Contents) -> store_mod_line_no(Mod, Db, Contents, 1, 0, []). @@ -164,15 +160,15 @@ get_nl([],Pos,Head) -> {lists:reverse(Head),[],Pos}. %%% to interpret. clauses([C0|Cs]) -> - C1 = clause(C0), + C1 = clause(C0, true), [C1|clauses(Cs)]; clauses([]) -> []. -clause({clause,Line,H0,G0,B0}) -> +clause({clause,Anno,H0,G0,B0}, Lc) -> H1 = head(H0), G1 = guard(G0), - B1 = exprs(B0), - {clause,Line,H1,G1,B1}. + B1 = exprs(B0, Lc), + {clause,ln(Anno),H1,G1,B1}. head(Ps) -> patterns(Ps). @@ -186,41 +182,46 @@ patterns([]) -> []. %% N.B. Only valid patterns are included here. -pattern({var,Line,V}) -> {var,Line,V}; -pattern({char,Line,I}) -> {value,Line,I}; -pattern({integer,Line,I}) -> {value,Line,I}; -pattern({match,Line,Pat1,Pat2}) -> - {match,Line,pattern(Pat1),pattern(Pat2)}; -pattern({float,Line,F}) -> {value,Line,F}; -pattern({atom,Line,A}) -> {value,Line,A}; -pattern({string,Line,S}) -> {value,Line,S}; -pattern({nil,Line}) -> {value,Line,[]}; -pattern({cons,Line,H0,T0}) -> +pattern({var,Anno,V}) -> {var,ln(Anno),V}; +pattern({char,Anno,I}) -> {value,ln(Anno),I}; +pattern({integer,Anno,I}) -> {value,ln(Anno),I}; +pattern({match,Anno,Pat1,Pat2}) -> + {match,ln(Anno),pattern(Pat1),pattern(Pat2)}; +pattern({float,Anno,F}) -> {value,ln(Anno),F}; +pattern({atom,Anno,A}) -> {value,ln(Anno),A}; +pattern({string,Anno,S}) -> {value,ln(Anno),S}; +pattern({nil,Anno}) -> {value,ln(Anno),[]}; +pattern({cons,Anno,H0,T0}) -> H1 = pattern(H0), T1 = pattern(T0), - {cons,Line,H1,T1}; -pattern({tuple,Line,Ps0}) -> + {cons,ln(Anno),H1,T1}; +pattern({tuple,Anno,Ps0}) -> Ps1 = pattern_list(Ps0), - {tuple,Line,Ps1}; -pattern({op,_,'-',{integer,Line,I}}) -> - {value,Line,-I}; -pattern({op,_,'+',{integer,Line,I}}) -> - {value,Line,I}; -pattern({op,_,'-',{char,Line,I}}) -> - {value,Line,-I}; -pattern({op,_,'+',{char,Line,I}}) -> - {value,Line,I}; -pattern({op,_,'-',{float,Line,I}}) -> - {value,Line,-I}; -pattern({op,_,'+',{float,Line,I}}) -> - {value,Line,I}; -pattern({bin,Line,Grp}) -> + {tuple,ln(Anno),Ps1}; +pattern({map,Anno,Fs0}) -> + Fs1 = lists:map(fun ({map_field_exact,L,K,V}) -> + {map_field_exact,L,expr(K, false),pattern(V)} + end, Fs0), + {map,ln(Anno),Fs1}; +pattern({op,_,'-',{integer,Anno,I}}) -> + {value,ln(Anno),-I}; +pattern({op,_,'+',{integer,Anno,I}}) -> + {value,ln(Anno),I}; +pattern({op,_,'-',{char,Anno,I}}) -> + {value,ln(Anno),-I}; +pattern({op,_,'+',{char,Anno,I}}) -> + {value,ln(Anno),I}; +pattern({op,_,'-',{float,Anno,I}}) -> + {value,ln(Anno),-I}; +pattern({op,_,'+',{float,Anno,I}}) -> + {value,ln(Anno),I}; +pattern({bin,Anno,Grp}) -> Grp1 = pattern_list(Grp), - {bin,Line,Grp1}; -pattern({bin_element,Line,Expr,Size,Type}) -> + {bin,ln(Anno),Grp1}; +pattern({bin_element,Anno,Expr,Size,Type}) -> Expr1 = pattern(Expr), - Size1 = expr(Size), - {bin_element,Line,Expr1,Size1,Type}. + Size1 = expr(Size, false), + {bin_element,ln(Anno),Expr1,Size1,Type}. %% These patterns are processed "in parallel" for purposes of variable %% definition etc. @@ -235,100 +236,94 @@ guard([G0|Gs]) -> [G1|guard(Gs)]; guard([]) -> []. -and_guard([{atom,_,true}|Gs]) -> - and_guard(Gs); and_guard([G0|Gs]) -> G1 = guard_test(G0), [G1|and_guard(Gs)]; and_guard([]) -> []. -guard_test({call,Line,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) -> +guard_test({call,Anno,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) -> As = gexpr_list(As0), - case map_guard_bif(F, length(As0)) of - {ok,Name} -> - {safe_bif,Line,erlang,Name,As}; - error -> - {safe_bif,Line,erlang,F,As} - end; -guard_test({op,Line,Op,L0}) -> + {safe_bif,ln(Anno),erlang,F,As}; +guard_test({op,Anno,Op,L0}) -> true = erl_internal:arith_op(Op, 1) orelse %Assertion. erl_internal:bool_op(Op, 1), L1 = gexpr(L0), - {safe_bif,Line,erlang,Op,[L1]}; -guard_test({op,Line,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' -> + {safe_bif,ln(Anno),erlang,Op,[L1]}; +guard_test({op,Anno,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' -> L1 = gexpr(L0), R1 = gexpr(R0), %They see the same variables - {Op,Line,L1,R1}; -guard_test({op,Line,Op,L0,R0}) -> + {Op,ln(Anno),L1,R1}; +guard_test({op,Anno,Op,L0,R0}) -> true = erl_internal:comp_op(Op, 2) orelse %Assertion. erl_internal:bool_op(Op, 2) orelse erl_internal:arith_op(Op, 2), L1 = gexpr(L0), R1 = gexpr(R0), %They see the same variables - {safe_bif,Line,erlang,Op,[L1,R1]}; -guard_test({integer,_,_}=I) -> I; -guard_test({char,_,_}=C) -> C; -guard_test({float,_,_}=F) -> F; -guard_test({atom,_,_}=A) -> A; -guard_test({nil,_}=N) -> N; -guard_test({var,_,_}=V) ->V. % Boolean var - -map_guard_bif(integer, 1) -> {ok,is_integer}; -map_guard_bif(float, 1) -> {ok,is_float}; -map_guard_bif(number, 1) -> {ok,is_number}; -map_guard_bif(atom, 1) -> {ok,is_atom}; -map_guard_bif(list, 1) -> {ok,is_list}; -map_guard_bif(tuple, 1) -> {ok,is_tuple}; -map_guard_bif(pid, 1) -> {ok,is_pid}; -map_guard_bif(reference, 1) -> {ok,is_reference}; -map_guard_bif(port, 1) -> {ok,is_port}; -map_guard_bif(binary, 1) -> {ok,is_binary}; -map_guard_bif(function, 1) -> {ok,is_function}; -map_guard_bif(_, _) -> error. - -gexpr({var,Line,V}) -> {var,Line,V}; -gexpr({integer,Line,I}) -> {value,Line,I}; -gexpr({char,Line,I}) -> {value,Line,I}; -gexpr({float,Line,F}) -> {value,Line,F}; -gexpr({atom,Line,A}) -> {value,Line,A}; -gexpr({string,Line,S}) -> {value,Line,S}; -gexpr({nil,Line}) -> {value,Line,[]}; -gexpr({cons,Line,H0,T0}) -> + {safe_bif,ln(Anno),erlang,Op,[L1,R1]}; +guard_test({var,_,_}=V) ->V; % Boolean var +guard_test({atom,Anno,true}) -> {value,ln(Anno),true}; +%% All other constants at this level means false. +guard_test({atom,Anno,_}) -> {value,ln(Anno),false}; +guard_test({integer,Anno,_}) -> {value,ln(Anno),false}; +guard_test({char,Anno,_}) -> {value,ln(Anno),false}; +guard_test({float,Anno,_}) -> {value,ln(Anno),false}; +guard_test({string,Anno,_}) -> {value,ln(Anno),false}; +guard_test({nil,Anno}) -> {value,ln(Anno),false}; +guard_test({cons,Anno,_,_}) -> {value,ln(Anno),false}; +guard_test({tuple,Anno,_}) -> {value,ln(Anno),false}; +guard_test({map,Anno,_}) -> {value,ln(Anno),false}; +guard_test({map,Anno,_,_}) -> {value,ln(Anno),false}; +guard_test({bin,Anno,_}) -> {value,ln(Anno),false}. + +gexpr({var,Anno,V}) -> {var,ln(Anno),V}; +gexpr({integer,Anno,I}) -> {value,ln(Anno),I}; +gexpr({char,Anno,I}) -> {value,ln(Anno),I}; +gexpr({float,Anno,F}) -> {value,ln(Anno),F}; +gexpr({atom,Anno,A}) -> {value,ln(Anno),A}; +gexpr({string,Anno,S}) -> {value,ln(Anno),S}; +gexpr({nil,Anno}) -> {value,ln(Anno),[]}; +gexpr({cons,Anno,H0,T0}) -> case {gexpr(H0),gexpr(T0)} of {{value,Line,H1},{value,Line,T1}} -> {value,Line,[H1|T1]}; - {H1,T1} -> {cons,Line,H1,T1} + {H1,T1} -> {cons,ln(Anno),H1,T1} end; -gexpr({tuple,Line,Es0}) -> +gexpr({tuple,Anno,Es0}) -> Es1 = gexpr_list(Es0), - {tuple,Line,Es1}; -gexpr({bin,Line,Flds0}) -> + {tuple,ln(Anno),Es1}; +gexpr({map,Anno,Fs0}) -> + new_map(Fs0, Anno, fun gexpr/1); +gexpr({map,Anno,E0,Fs0}) -> + E1 = gexpr(E0), + Fs1 = map_fields(Fs0, fun gexpr/1), + {map,ln(Anno),E1,Fs1}; +gexpr({bin,Anno,Flds0}) -> Flds = gexpr_list(Flds0), - {bin,Line,Flds}; -gexpr({bin_element,Line,Expr0,Size0,Type}) -> + {bin,ln(Anno),Flds}; +gexpr({bin_element,Anno,Expr0,Size0,Type}) -> Expr = gexpr(Expr0), Size = gexpr(Size0), - {bin_element,Line,Expr,Size,Type}; + {bin_element,ln(Anno),Expr,Size,Type}; %%% The previous passes have added the module name 'erlang' to %%% all BIF calls, even in guards. -gexpr({call,Line,{remote,_,{atom,_,erlang},{atom,_,self}},[]}) -> - {dbg, Line, self, []}; -gexpr({call,Line,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) -> +gexpr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,self}},[]}) -> + {dbg,ln(Anno),self,[]}; +gexpr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,F}},As0}) -> As = gexpr_list(As0), - {safe_bif,Line,erlang,F,As}; -gexpr({op,Line,Op,A0}) -> + {safe_bif,ln(Anno),erlang,F,As}; +gexpr({op,Anno,Op,A0}) -> erl_internal:arith_op(Op, 1), A1 = gexpr(A0), - {safe_bif,Line,erlang,Op,[A1]}; -gexpr({op,Line,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' -> + {safe_bif,ln(Anno),erlang,Op,[A1]}; +gexpr({op,Anno,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' -> L1 = gexpr(L0), R1 = gexpr(R0), %They see the same variables - {Op,Line,L1,R1}; -gexpr({op,Line,Op,L0,R0}) -> + {Op,ln(Anno),L1,R1}; +gexpr({op,Anno,Op,L0,R0}) -> true = erl_internal:arith_op(Op, 2) orelse erl_internal:comp_op(Op, 2) orelse erl_internal:bool_op(Op, 2), L1 = gexpr(L0), R1 = gexpr(R0), %They see the same variables - {safe_bif,Line,erlang,Op,[L1,R1]}. + {safe_bif,ln(Anno),erlang,Op,[L1,R1]}. %% These expressions are processed "in parallel" for purposes of variable %% definition etc. @@ -341,233 +336,234 @@ gexpr_list([]) -> []. %% These expressions are processed "sequentially" for purposes of variable %% definition etc. -exprs([E0|Es]) -> - E1 = expr(E0), - [E1|exprs(Es)]; -exprs([]) -> []. - -expr({var,Line,V}) -> {var,Line,V}; -expr({integer,Line,I}) -> {value,Line,I}; -expr({char,Line,I}) -> {value,Line,I}; -expr({float,Line,F}) -> {value,Line,F}; -expr({atom,Line,A}) -> {value,Line,A}; -expr({string,Line,S}) -> {value,Line,S}; -expr({nil,Line}) -> {value,Line,[]}; -expr({cons,Line,H0,T0}) -> - case {expr(H0),expr(T0)} of +exprs([E], Lc) -> + [expr(E, Lc)]; +exprs([E0|Es], Lc) -> + E1 = expr(E0, false), + [E1|exprs(Es, Lc)]; +exprs([], _Lc) -> []. + +expr({var,Anno,V}, _Lc) -> {var,ln(Anno),V}; +expr({integer,Anno,I}, _Lc) -> {value,ln(Anno),I}; +expr({char,Anno,I}, _Lc) -> {value,ln(Anno),I}; +expr({float,Anno,F}, _Lc) -> {value,ln(Anno),F}; +expr({atom,Anno,A}, _Lc) -> {value,ln(Anno),A}; +expr({string,Anno,S}, _Lc) -> {value,ln(Anno),S}; +expr({nil,Anno}, _Lc) -> {value,ln(Anno),[]}; +expr({cons,Anno,H0,T0}, _Lc) -> + case {expr(H0, false),expr(T0, false)} of {{value,Line,H1},{value,Line,T1}} -> {value,Line,[H1|T1]}; - {H1,T1} -> {cons,Line,H1,T1} + {H1,T1} -> {cons,ln(Anno),H1,T1} end; -expr({tuple,Line,Es0}) -> +expr({tuple,Anno,Es0}, _Lc) -> Es1 = expr_list(Es0), - {tuple,Line,Es1}; -expr({block,Line,Es0}) -> + {tuple,ln(Anno),Es1}; +expr({map,Anno,Fs}, _Lc) -> + new_map(Fs, Anno, fun (E) -> expr(E, false) end); +expr({map,Anno,E0,Fs0}, _Lc) -> + E1 = expr(E0, false), + Fs1 = map_fields(Fs0), + {map,ln(Anno),E1,Fs1}; +expr({block,Anno,Es0}, Lc) -> %% Unfold block into a sequence. - Es1 = exprs(Es0), - {block,Line,Es1}; -expr({'if',Line,Cs0}) -> - Cs1 = icr_clauses(Cs0), - {'if',Line,Cs1}; -expr({'case',Line,E0,Cs0}) -> - E1 = expr(E0), - Cs1 = icr_clauses(Cs0), - {'case',Line,E1,Cs1}; -expr({'receive',Line,Cs0}) -> - Cs1 = icr_clauses(Cs0), - {'receive',Line,Cs1}; -expr({'receive',Line,Cs0,To0,ToEs0}) -> - To1 = expr(To0), - ToEs1 = exprs(ToEs0), - Cs1 = icr_clauses(Cs0), - {'receive',Line,Cs1,To1,ToEs1}; -expr({'fun',Line,{clauses,Cs0},{_,_,Name}}) when is_atom(Name) -> + Es1 = exprs(Es0, Lc), + {block,ln(Anno),Es1}; +expr({'if',Anno,Cs0}, Lc) -> + Cs1 = icr_clauses(Cs0, Lc), + {'if',ln(Anno),Cs1}; +expr({'case',Anno,E0,Cs0}, Lc) -> + E1 = expr(E0, false), + Cs1 = icr_clauses(Cs0, Lc), + {'case',ln(Anno),E1,Cs1}; +expr({'receive',Anno,Cs0}, Lc) -> + Cs1 = icr_clauses(Cs0, Lc), + {'receive',ln(Anno),Cs1}; +expr({'receive',Anno,Cs0,To0,ToEs0}, Lc) -> + To1 = expr(To0, false), + ToEs1 = exprs(ToEs0, Lc), + Cs1 = icr_clauses(Cs0, Lc), + {'receive',ln(Anno),Cs1,To1,ToEs1}; +expr({'fun',Anno,{clauses,Cs0},{_,_,Name}}, _Lc) when is_atom(Name) -> %% New R10B-2 format (abstract_v2). Cs = fun_clauses(Cs0), - {make_fun,Line,Name,Cs}; -expr({'fun',Line,{clauses,Cs0},{_,_,_,_,Name}}) when is_atom(Name) -> - %% New R8 format (abstract_v2). - Cs = fun_clauses(Cs0), - {make_fun,Line,Name,Cs}; -expr({'fun',Line,{function,F,A},{_Index,_OldUniq,Name}}) -> + {make_fun,ln(Anno),Name,Cs}; +expr({'fun',Anno,{function,F,A},{_Index,_OldUniq,Name}}, _Lc) -> %% New R8 format (abstract_v2). + Line = ln(Anno), As = new_vars(A, Line), - Cs = [{clause,Line,As,[],[{local_call,Line,F,As}]}], + Cs = [{clause,Line,As,[],[{local_call,Line,F,As,true}]}], {make_fun,Line,Name,Cs}; -expr({'fun',_,{clauses,_},{_OldUniq,_Hvss,_Free}}) -> - %% Old format (abstract_v1). - exit({?MODULE,old_funs}); -expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,self}},[]}) -> - {dbg,Line,self,[]}; -expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,get_stacktrace}},[]}) -> - {dbg,Line,get_stacktrace,[]}; -expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,throw}},[_]=As}) -> - {dbg,Line,throw,expr_list(As)}; -expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,error}},[_]=As}) -> - {dbg,Line,error,expr_list(As)}; -expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,fault}},[_]=As}) -> - {dbg,Line,fault,expr_list(As)}; -expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,exit}},[_]=As}) -> - {dbg,Line,exit,expr_list(As)}; -expr({call,Line,{remote,_,{atom,_,erlang},{atom,_,apply}},[_,_,_]=As0}) -> +expr({named_fun,Anno,FName,Cs0,{_,_,Name}}, _Lc) when is_atom(Name) -> + Cs = fun_clauses(Cs0), + {make_named_fun,ln(Anno),Name,FName,Cs}; +expr({'fun',Anno,{function,{atom,_,M},{atom,_,F},{integer,_,A}}}, _Lc) + when 0 =< A, A =< 255 -> + %% New format in R15 for fun M:F/A (literal values). + {value,ln(Anno),erlang:make_fun(M, F, A)}; +expr({'fun',Anno,{function,M,F,A}}, _Lc) -> + %% New format in R15 for fun M:F/A (one or more variables). + MFA = expr_list([M,F,A]), + {make_ext_fun,ln(Anno),MFA}; +expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,self}},[]}, _Lc) -> + {dbg,ln(Anno),self,[]}; +expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,get_stacktrace}},[]}, _Lc) -> + {dbg,ln(Anno),get_stacktrace,[]}; +expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,throw}},[_]=As}, _Lc) -> + {dbg,ln(Anno),throw,expr_list(As)}; +expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,error}},[_]=As}, _Lc) -> + {dbg,ln(Anno),error,expr_list(As)}; +expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,exit}},[_]=As}, _Lc) -> + {dbg,ln(Anno),exit,expr_list(As)}; +expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,raise}},[_,_,_]=As}, _Lc) -> + {dbg,ln(Anno),raise,expr_list(As)}; +expr({call,Anno,{remote,_,{atom,_,erlang},{atom,_,apply}},[_,_,_]=As0}, Lc) -> As = expr_list(As0), - {apply,Line,As}; -expr({call,Line,{remote,_,{atom,_,Mod},{atom,_,Func}},As0}) -> + {apply,ln(Anno),As,Lc}; +expr({call,Anno,{remote,_,{atom,_,Mod},{atom,_,Func}},As0}, Lc) -> As = expr_list(As0), case erlang:is_builtin(Mod, Func, length(As)) of false -> - {call_remote,Line,Mod,Func,As}; + {call_remote,ln(Anno),Mod,Func,As,Lc}; true -> - case bif_type(Mod, Func) of - safe -> {safe_bif,Line,Mod,Func,As}; - spawn -> {spawn_bif,Line,Mod,Func,As}; - unsafe ->{bif,Line,Mod,Func,As} + case bif_type(Mod, Func, length(As0)) of + safe -> {safe_bif,ln(Anno),Mod,Func,As}; + unsafe ->{bif,ln(Anno),Mod,Func,As} end end; -expr({call,Line,{remote,_,Mod0,Func0},As0}) -> +expr({call,Anno,{remote,_,Mod0,Func0},As0}, Lc) -> %% New R8 format (abstract_v2). - Mod = expr(Mod0), - Func = expr(Func0), + Mod = expr(Mod0, false), + Func = expr(Func0, false), As = consify(expr_list(As0)), - {apply,Line,[Mod,Func,As]}; -expr({call,Line,{atom,_,Func},As0}) -> + {apply,ln(Anno),[Mod,Func,As],Lc}; +expr({call,Anno,{atom,_,Func},As0}, Lc) -> As = expr_list(As0), - {local_call,Line,Func,As}; -expr({call,Line,Fun0,As0}) -> - Fun = expr(Fun0), + {local_call,ln(Anno),Func,As,Lc}; +expr({call,Anno,Fun0,As0}, Lc) -> + Fun = expr(Fun0, false), As = expr_list(As0), - {apply_fun,Line,Fun,As}; -expr({'catch',Line,E0}) -> + {apply_fun,ln(Anno),Fun,As,Lc}; +expr({'catch',Anno,E0}, _Lc) -> %% No new variables added. - E1 = expr(E0), - {'catch',Line,E1}; -expr({'try',Line,Es0,CaseCs0,CatchCs0,As0}) -> + E1 = expr(E0, false), + {'catch',ln(Anno),E1}; +expr({'try',Anno,Es0,CaseCs0,CatchCs0,As0}, Lc) -> %% No new variables added. Es = expr_list(Es0), - CaseCs = icr_clauses(CaseCs0), - CatchCs = icr_clauses(CatchCs0), + CaseCs = icr_clauses(CaseCs0, Lc), + CatchCs = icr_clauses(CatchCs0, Lc), As = expr_list(As0), - {'try',Line,Es,CaseCs,CatchCs,As}; -expr({'query', Line, E0}) -> - E = expr(E0), - {'query', Line, E}; -expr({lc,Line,E0,Gs0}) -> %R8. + {'try',ln(Anno),Es,CaseCs,CatchCs,As}; +expr({lc,Anno,E0,Gs0}, _Lc) -> %R8. Gs = lists:map(fun ({generate,L,P0,Qs}) -> - {generate,L,expr(P0),expr(Qs)}; + {generate,L,pattern(P0),expr(Qs, false)}; ({b_generate,L,P0,Qs}) -> %R12. - {b_generate,L,expr(P0),expr(Qs)}; + {b_generate,L,pattern(P0),expr(Qs, false)}; (Expr) -> - case is_guard_test(Expr) of - true -> {guard,[[guard_test(Expr)]]}; - false -> expr(Expr) + case erl_lint:is_guard_test(Expr) of + true -> {guard,guard([[Expr]])}; + false -> expr(Expr, false) end end, Gs0), - {lc,Line,expr(E0),Gs}; -expr({bc,Line,E0,Gs0}) -> %R12. + {lc,ln(Anno),expr(E0, false),Gs}; +expr({bc,Anno,E0,Gs0}, _Lc) -> %R12. Gs = lists:map(fun ({generate,L,P0,Qs}) -> - {generate,L,expr(P0),expr(Qs)}; + {generate,L,pattern(P0),expr(Qs, false)}; ({b_generate,L,P0,Qs}) -> %R12. - {b_generate,L,expr(P0),expr(Qs)}; + {b_generate,L,pattern(P0),expr(Qs, false)}; (Expr) -> - case is_guard_test(Expr) of - true -> {guard,[[guard_test(Expr)]]}; - false -> expr(Expr) + case erl_lint:is_guard_test(Expr) of + true -> {guard,guard([[Expr]])}; + false -> expr(Expr, false) end end, Gs0), - {bc,Line,expr(E0),Gs}; -expr({match,Line,P0,E0}) -> - E1 = expr(E0), + {bc,ln(Anno),expr(E0, false),Gs}; +expr({match,Anno,P0,E0}, _Lc) -> + E1 = expr(E0, false), P1 = pattern(P0), - {match,Line,P1,E1}; -expr({op,Line,Op,A0}) -> - A1 = expr(A0), - {op,Line,Op,[A1]}; -expr({op,Line,'++',L0,R0}) -> - L1 = expr(L0), - R1 = expr(R0), %They see the same variables - {op,Line,append,[L1,R1]}; -expr({op,Line,'--',L0,R0}) -> - L1 = expr(L0), - R1 = expr(R0), %They see the same variables - {op,Line,subtract,[L1,R1]}; -expr({op,Line,'!',L0,R0}) -> - L1 = expr(L0), - R1 = expr(R0), %They see the same variables - {send,Line,L1,R1}; -expr({op,Line,Op,L0,R0}) when Op =:= 'andalso'; Op =:= 'orelse' -> - L1 = expr(L0), - R1 = expr(R0), %They see the same variables - {Op,Line,L1,R1}; -expr({op,Line,Op,L0,R0}) -> - L1 = expr(L0), - R1 = expr(R0), %They see the same variables - {op,Line,Op,[L1,R1]}; -expr({bin,Line,Grp}) -> + {match,ln(Anno),P1,E1}; +expr({op,Anno,Op,A0}, _Lc) -> + A1 = expr(A0, false), + {op,ln(Anno),Op,[A1]}; +expr({op,Anno,'++',L0,R0}, _Lc) -> + L1 = expr(L0, false), + R1 = expr(R0, false), %They see the same variables + {op,ln(Anno),append,[L1,R1]}; +expr({op,Anno,'--',L0,R0}, _Lc) -> + L1 = expr(L0, false), + R1 = expr(R0, false), %They see the same variables + {op,ln(Anno),subtract,[L1,R1]}; +expr({op,Anno,'!',L0,R0}, _Lc) -> + L1 = expr(L0, false), + R1 = expr(R0, false), %They see the same variables + {send,ln(Anno),L1,R1}; +expr({op,Anno,Op,L0,R0}, _Lc) when Op =:= 'andalso'; Op =:= 'orelse' -> + L1 = expr(L0, false), + R1 = expr(R0, false), %They see the same variables + {Op,ln(Anno),L1,R1}; +expr({op,Anno,Op,L0,R0}, _Lc) -> + L1 = expr(L0, false), + R1 = expr(R0, false), %They see the same variables + {op,ln(Anno),Op,[L1,R1]}; +expr({bin,Anno,Grp}, _Lc) -> Grp1 = expr_list(Grp), - {bin,Line,Grp1}; -expr({bin_element,Line,Expr,Size,Type}) -> - Expr1 = expr(Expr), - Size1 = expr(Size), - {bin_element,Line,Expr1,Size1,Type}; -expr(Other) -> + {bin,ln(Anno),Grp1}; +expr({bin_element,Anno,Expr,Size,Type}, _Lc) -> + Expr1 = expr(Expr, false), + Size1 = expr(Size, false), + {bin_element,ln(Anno),Expr1,Size1,Type}; +expr(Other, _Lc) -> exit({?MODULE,{unknown_expr,Other}}). -%% is_guard_test(Expression) -> true | false. -%% Test if a general expression is a guard test. Cannot use erl_lint -%% here as sys_pre_expand has transformed source. - -is_guard_test({op,_,Op,L,R}) -> - erl_internal:comp_op(Op, 2) andalso is_gexpr_list([L,R]); -is_guard_test({call,_,{remote,_,{atom,_,erlang},{atom,_,Test}},As}) -> - erl_internal:type_test(Test, length(As)) andalso is_gexpr_list(As); -is_guard_test({atom,_,true}) -> true; -is_guard_test(_) -> false. - -is_gexpr({var,_,_}) -> true; -is_gexpr({atom,_,_}) -> true; -is_gexpr({integer,_,_}) -> true; -is_gexpr({char,_,_}) -> true; -is_gexpr({float,_,_}) -> true; -is_gexpr({string,_,_}) -> true; -is_gexpr({nil,_}) -> true; -is_gexpr({cons,_,H,T}) -> is_gexpr_list([H,T]); -is_gexpr({tuple,_,Es}) -> is_gexpr_list(Es); -is_gexpr({call,_,{remote,_,{atom,_,erlang},{atom,_,F}},As}) -> - Ar = length(As), - case erl_internal:guard_bif(F, Ar) of - true -> is_gexpr_list(As); - false -> erl_internal:arith_op(F, Ar) andalso is_gexpr_list(As) - end; -is_gexpr({op,_,Op,A}) -> - erl_internal:arith_op(Op, 1) andalso is_gexpr(A); -is_gexpr({op,_,Op,A1,A2}) -> - erl_internal:arith_op(Op, 2) andalso is_gexpr_list([A1,A2]); -is_gexpr(_) -> false. - -is_gexpr_list(Es) -> lists:all(fun (E) -> is_gexpr(E) end, Es). - consify([A|As]) -> {cons,0,A,consify(As)}; consify([]) -> {value,0,[]}. - %% -type expr_list([Expression]) -> [Expression]. %% These expressions are processed "in parallel" for purposes of variable %% definition etc. expr_list([E0|Es]) -> - E1 = expr(E0), + E1 = expr(E0, false), [E1|expr_list(Es)]; expr_list([]) -> []. -icr_clauses([C0|Cs]) -> - C1 = clause(C0), - [C1|icr_clauses(Cs)]; -icr_clauses([]) -> []. +icr_clauses([C0|Cs], Lc) -> + C1 = clause(C0, Lc), + [C1|icr_clauses(Cs, Lc)]; +icr_clauses([], _) -> []. -fun_clauses([{clause,L,H,G,B}|Cs]) -> - [{clause,L,head(H),guard(G),exprs(B)}|fun_clauses(Cs)]; +fun_clauses([{clause,A,H,G,B}|Cs]) -> + [{clause,ln(A),head(H),guard(G),exprs(B, true)}|fun_clauses(Cs)]; fun_clauses([]) -> []. + +new_map(Fs0, Anno, F) -> + Line = ln(Anno), + Fs1 = map_fields(Fs0, F), + Fs2 = [{L,K,V} || {map_field_assoc,L,K,V} <- Fs1], + try + {value,Line,map_literal(Fs2, #{})} + catch + throw:not_literal -> + {map,Line,Fs2} + end. + +map_literal([{_,{value,_,K},{value,_,V}}|T], M) -> + map_literal(T, maps:put(K, V, M)); +map_literal([_|_], _) -> + throw(not_literal); +map_literal([], M) -> M. + +map_fields(Fs) -> + map_fields(Fs, fun (E) -> expr(E, false) end). + +map_fields([{map_field_assoc,A,N,V}|Fs], F) -> + [{map_field_assoc,ln(A),F(N),F(V)}|map_fields(Fs)]; +map_fields([{map_field_exact,A,N,V}|Fs], F) -> + [{map_field_exact,ln(A),F(N),F(V)}|map_fields(Fs)]; +map_fields([], _) -> []. + %% new_var_name() -> VarName. new_var_name() -> @@ -585,24 +581,24 @@ new_vars(N, L, Vs) when N > 0 -> new_vars(N-1, L, [V|Vs]); new_vars(0, _, Vs) -> Vs. -bif_type(erlang, Name) -> bif_type(Name); -bif_type(_, _) -> unsafe. +ln(Anno) -> + erl_anno:line(Anno). + +bif_type(erlang, Name, Arity) -> + case erl_internal:guard_bif(Name, Arity) of + true -> + %% Guard BIFs are safe (except for self/0, but it is + %% handled with a special instruction anyway). + safe; + false -> + bif_type(Name) + end; +bif_type(_, _, _) -> unsafe. bif_type(register) -> safe; bif_type(unregister) -> safe; bif_type(whereis) -> safe; bif_type(registered) -> safe; -bif_type(abs) -> safe; -bif_type(float) -> safe; -bif_type(trunc) -> safe; -bif_type(round) -> safe; -bif_type(math) -> safe; -bif_type(node) -> safe; -bif_type(length) -> safe; -bif_type(hd) -> safe; -bif_type(tl) -> safe; -bif_type(size) -> safe; -bif_type(element) -> safe; bif_type(setelement) -> safe; bif_type(atom_to_list) -> safe; bif_type(list_to_atom) -> safe; @@ -627,22 +623,14 @@ bif_type(list_to_pid) -> safe; bif_type(module_loaded) -> safe; bif_type(binary_to_term) -> safe; bif_type(term_to_binary) -> safe; -bif_type(alive) -> safe; -bif_type(notalive) -> safe; bif_type(nodes) -> safe; bif_type(is_alive) -> safe; bif_type(disconnect_node) -> safe; bif_type(binary_to_list) -> safe; bif_type(list_to_binary) -> safe; bif_type(split_binary) -> safe; -bif_type(concat_binary) -> safe; -bif_type(term_to_atom) -> safe; bif_type(hash) -> safe; bif_type(pre_loaded) -> safe; -bif_type(info) -> safe; bif_type(set_cookie) -> safe; bif_type(get_cookie) -> safe; -bif_type(spawn) -> spawn; -bif_type(spawn_link) -> spawn; -bif_type(spawn_opt) -> spawn; bif_type(_) -> unsafe. |