diff options
Diffstat (limited to 'lib/stdlib/src/shell.erl')
| -rw-r--r-- | lib/stdlib/src/shell.erl | 97 |
1 files changed, 54 insertions, 43 deletions
diff --git a/lib/stdlib/src/shell.erl b/lib/stdlib/src/shell.erl index c64123a207..ad4984b64c 100644 --- a/lib/stdlib/src/shell.erl +++ b/lib/stdlib/src/shell.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2015. All Rights Reserved. +%% Copyright Ericsson AB 1996-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -23,7 +23,7 @@ -export([whereis_evaluator/0, whereis_evaluator/1]). -export([start_restricted/1, stop_restricted/0]). -export([local_allowed/3, non_local_allowed/3]). --export([prompt_func/1, strings/1]). +-export([catch_exception/1, prompt_func/1, strings/1]). -define(LINEMAX, 30). -define(CHAR_MAX, 60). @@ -229,8 +229,9 @@ server_loop(N0, Eval_0, Bs00, RT, Ds00, History0, Results0) -> {Eval_1,Bs0,Ds0,Prompt} = prompt(N, Eval_0, Bs00, RT, Ds00), {Res,Eval0} = get_command(Prompt, Eval_1, Bs0, RT, Ds0), case Res of - {ok,Es0} -> - case expand_hist(Es0, N) of + {ok,Es0,XBs} -> + Es1 = lib:subst_values_for_vars(Es0, XBs), + case expand_hist(Es1, N) of {ok,Es} -> {V,Eval,Bs,Ds} = shell_cmd(Es, Eval0, Bs0, RT, Ds0, cmd), {History,Results} = check_and_get_history_and_results(), @@ -276,10 +277,10 @@ get_command(Prompt, Eval, Bs, RT, Ds) -> fun() -> exit( case - io:scan_erl_exprs(group_leader(), Prompt, 1) + io:scan_erl_exprs(group_leader(), Prompt, 1, [text]) of {ok,Toks,_EndPos} -> - erl_parse:parse_exprs(Toks); + lib:extended_parse_exprs(Toks); {eof,_EndPos} -> eof; {error,ErrorInfo,_EndPos} -> @@ -700,7 +701,9 @@ exprs([E0|Es], Bs1, RT, Lf, Ef, Bs0, W) -> {W,V0}; true -> case result_will_be_saved() of true -> V0; - false -> ignored + false -> + erlang:garbage_collect(), + ignored end end, {{value,V,Bs,get()},Bs}; @@ -726,7 +729,7 @@ result_will_be_saved() -> used_record_defs(E, RT) -> %% Be careful to return a list where used records come before %% records that use them. The linter wants them ordered that way. - UR = case used_records(E, [], RT) of + UR = case used_records(E, [], RT, []) of [] -> []; L0 -> @@ -736,13 +739,19 @@ used_record_defs(E, RT) -> end, record_defs(RT, UR). -used_records(E, U0, RT) -> +used_records(E, U0, RT, Skip) -> case used_records(E) of {name,Name,E1} -> - U = used_records(ets:lookup(RT, Name), [Name | U0], RT), - used_records(E1, U, RT); + U = case lists:member(Name, Skip) of + true -> + U0; + false -> + R = ets:lookup(RT, Name), + used_records(R, [Name | U0], RT, [Name | Skip]) + end, + used_records(E1, U, RT, Skip); {expr,[E1 | Es]} -> - used_records(Es, used_records(E1, U0, RT), RT); + used_records(Es, used_records(E1, U0, RT, Skip), RT, Skip); _ -> U0 end. @@ -768,6 +777,8 @@ used_records({call,_,{atom,_,record_info},[A,{atom,_,Name}]}) -> {name, Name, A}; used_records({call,Line,{tuple,_,[M,F]},As}) -> used_records({call,Line,{remote,Line,M,F},As}); +used_records({type,_,record,[{atom,_,Name}|Fs]}) -> + {name, Name, Fs}; used_records(T) when is_tuple(T) -> {expr, tuple_to_list(T)}; used_records(E) -> @@ -917,9 +928,9 @@ expand_records(UsedRecords, E0) -> RecordDefs = [Def || {_Name,Def} <- UsedRecords], L = erl_anno:new(1), E = prep_rec(E0), - Forms = RecordDefs ++ [{function,L,foo,0,[{clause,L,[],[],[E]}]}], - [{function,L,foo,0,[{clause,L,[],[],[NE]}]}] = - erl_expand_records:module(Forms, [strict_record_tests]), + Forms0 = RecordDefs ++ [{function,L,foo,0,[{clause,L,[],[],[E]}]}], + Forms = erl_expand_records:module(Forms0, [strict_record_tests]), + {function,L,foo,0,[{clause,L,[],[],[NE]}]} = lists:last(Forms), prep_rec(NE). prep_rec({value,_CommandN,_V}=Value) -> @@ -965,10 +976,11 @@ local_func(f, [{var,_,Name}], Bs, _Shell, _RT, _Lf, _Ef) -> {value,ok,erl_eval:del_binding(Name, Bs)}; local_func(f, [_Other], _Bs, _Shell, _RT, _Lf, _Ef) -> erlang:raise(error, function_clause, [{shell,f,1}]); -local_func(rd, [{atom,_,RecName},RecDef0], Bs, _Shell, RT, _Lf, _Ef) -> +local_func(rd, [{atom,_,RecName0},RecDef0], Bs, _Shell, RT, _Lf, _Ef) -> RecDef = expand_value(RecDef0), RDs = lists:flatten(erl_pp:expr(RecDef)), - Attr = lists:concat(["-record('", RecName, "',", RDs, ")."]), + RecName = io_lib:write_atom_as_latin1(RecName0), + Attr = lists:concat(["-record(", RecName, ",", RDs, ")."]), {ok, Tokens, _} = erl_scan:string(Attr), case erl_parse:parse_form(Tokens) of {ok,AttrForm} -> @@ -999,12 +1011,7 @@ local_func(rl, [A], Bs0, _Shell, RT, Lf, Ef) -> {value,list_records(record_defs(RT, listify(Recs))),Bs}; local_func(rp, [A], Bs0, _Shell, RT, Lf, Ef) -> {[V],Bs} = expr_list([A], Bs0, Lf, Ef), - Cs = io_lib_pretty:print(V, ([{column, 1}, - {line_length, columns()}, - {depth, -1}, - {max_chars, ?CHAR_MAX}, - {record_print_fun, record_print_fun(RT)}] - ++ enc())), + Cs = pp(V, _Column=1, _Depth=-1, RT), io:requests([{put_chars, unicode, Cs}, nl]), {value,ok,Bs}; local_func(rr, [A], Bs0, _Shell, RT, Lf, Ef) -> @@ -1086,6 +1093,8 @@ record_fields([{record_field,_,{atom,_,Field}} | Fs]) -> [Field | record_fields(Fs)]; record_fields([{record_field,_,{atom,_,Field},_} | Fs]) -> [Field | record_fields(Fs)]; +record_fields([{typed_record_field,Field,_Type} | Fs]) -> + record_fields([Field | Fs]); record_fields([]) -> []. @@ -1237,22 +1246,22 @@ read_file_records(File, Opts) -> end. %% This is how the debugger searches for source files. See int.erl. -try_source(Beam, CB) -> - Os = case lists:keyfind(options, 1, binary_to_term(CB)) of - false -> []; - {_, Os0} -> Os0 - end, +try_source(Beam, RawCB) -> + EbinDir = filename:dirname(Beam), + CB = binary_to_term(RawCB), + Os = proplists:get_value(options,CB, []), Src0 = filename:rootname(Beam) ++ ".erl", - case is_file(Src0) of - true -> parse_file(Src0, Os); - false -> - EbinDir = filename:dirname(Beam), - Src = filename:join([filename:dirname(EbinDir), "src", - filename:basename(Src0)]), - case is_file(Src) of - true -> parse_file(Src, Os); - false -> {error, nofile} - end + Src1 = filename:join([filename:dirname(EbinDir), "src", + filename:basename(Src0)]), + Src2 = proplists:get_value(source, CB, []), + try_sources([Src0,Src1,Src2], Os). + +try_sources([], _) -> + {error, nofile}; +try_sources([Src|Rest], Os) -> + case is_file(Src) of + true -> parse_file(Src, Os); + false -> try_sources(Rest, Os) end. is_file(Name) -> @@ -1397,9 +1406,9 @@ get_history_and_results() -> {History, erlang:min(Results, History)}. pp(V, I, RT) -> - pp(V, I, RT, enc()). + pp(V, I, _Depth=?LINEMAX, RT). -pp(V, I, RT, Enc) -> +pp(V, I, D, RT) -> Strings = case application:get_env(stdlib, shell_strings) of {ok, false} -> @@ -1408,19 +1417,21 @@ pp(V, I, RT, Enc) -> true end, io_lib_pretty:print(V, ([{column, I}, {line_length, columns()}, - {depth, ?LINEMAX}, {max_chars, ?CHAR_MAX}, + {depth, D}, {max_chars, ?CHAR_MAX}, {strings, Strings}, {record_print_fun, record_print_fun(RT)}] - ++ Enc)). + ++ enc())). columns() -> case io:columns() of {ok,N} -> N; _ -> 80 end. + encoding() -> [{encoding, Encoding}] = enc(), Encoding. + enc() -> case lists:keyfind(encoding, 1, io:getopts()) of false -> [{encoding,latin1}]; % should never happen @@ -1450,7 +1461,7 @@ check_env(V) -> {ok, Val} -> Txt = io_lib:fwrite ("Invalid value of STDLIB configuration parameter" - "~w: ~tp\n", [V, Val]), + "~tw: ~tp\n", [V, Val]), error_logger:info_report(lists:flatten(Txt)) end. |