diff options
Diffstat (limited to 'lib/stdlib/src/escript.erl')
-rw-r--r-- | lib/stdlib/src/escript.erl | 139 |
1 files changed, 70 insertions, 69 deletions
diff --git a/lib/stdlib/src/escript.erl b/lib/stdlib/src/escript.erl index 41b49f4a86..3f14894b55 100644 --- a/lib/stdlib/src/escript.erl +++ b/lib/stdlib/src/escript.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2015. All Rights Reserved. +%% Copyright Ericsson AB 2007-2018. 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. @@ -38,7 +38,7 @@ -record(state, {file :: file:filename(), module :: module(), forms_or_bin, - source :: source(), + source :: source() | 'undefined', n_errors :: non_neg_integer(), mode :: mode(), exports_main :: boolean(), @@ -49,9 +49,9 @@ -type emu_args() :: string(). -record(sections, {type, - shebang :: shebang(), - comment :: comment(), - emu_args :: emu_args(), + shebang :: shebang() | 'undefined', + comment :: comment() | 'undefined', + emu_args :: emu_args() | 'undefined', body}). -record(extract_options, {compile_source}). @@ -224,8 +224,8 @@ return_sections(S, Bin) -> normalize_section(Name, undefined) -> {Name, undefined}; normalize_section(shebang, "#!" ++ Chars) -> - Chopped = string:strip(Chars, right, $\n), - Stripped = string:strip(Chopped, both), + Chopped = string:trim(Chars, trailing, "$\n"), + Stripped = string:trim(Chopped, both), if Stripped =:= ?SHEBANG -> {shebang, default}; @@ -233,8 +233,8 @@ normalize_section(shebang, "#!" ++ Chars) -> {shebang, Stripped} end; normalize_section(comment, Chars) -> - Chopped = string:strip(Chars, right, $\n), - Stripped = string:strip(string:strip(Chopped, left, $%), both), + Chopped = string:trim(Chars, trailing, "$\n"), + Stripped = string:trim(string:trim(Chopped, leading, "$%"), both), if Stripped =:= ?COMMENT -> {comment, default}; @@ -242,8 +242,8 @@ normalize_section(comment, Chars) -> {comment, Stripped} end; normalize_section(emu_args, "%%!" ++ Chars) -> - Chopped = string:strip(Chars, right, $\n), - Stripped = string:strip(Chopped, both), + Chopped = string:trim(Chars, trailing, "$\n"), + Stripped = string:trim(Chopped, both), {emu_args, Stripped}; normalize_section(Name, Chars) -> {Name, Chars}. @@ -281,11 +281,11 @@ start(EscriptOptions) -> end catch throw:Str -> - io:format("escript: ~s\n", [Str]), + io:format("escript: ~ts\n", [Str]), my_halt(127); - _:Reason -> - io:format("escript: Internal error: ~p\n", [Reason]), - io:format("~p\n", [erlang:get_stacktrace()]), + _:Reason:Stk -> + io:format("escript: Internal error: ~tp\n", [Reason]), + io:format("~tp\n", [Stk]), my_halt(127) end. @@ -481,46 +481,49 @@ find_first_body_line(Fd, HeaderSz0, LineNo, KeepFirst, Sections) -> %% Look for special comment on second line Line2 = get_line(Fd), {ok, HeaderSz2} = file:position(Fd, cur), - case classify_line(Line2) of - emu_args -> - %% Skip special comment on second line - Line3 = get_line(Fd), - {HeaderSz2, LineNo + 2, Fd, - Sections#sections{type = guess_type(Line3), - comment = undefined, - emu_args = Line2}}; - Line2Type -> - %% Look for special comment on third line - Line3 = get_line(Fd), - {ok, HeaderSz3} = file:position(Fd, cur), - Line3Type = classify_line(Line3), - if - Line3Type =:= emu_args -> - %% Skip special comment on third line - Line4 = get_line(Fd), - {HeaderSz3, LineNo + 3, Fd, - Sections#sections{type = guess_type(Line4), - comment = Line2, - emu_args = Line3}}; - Sections#sections.shebang =:= undefined, - KeepFirst =:= true -> - %% No shebang. Use the entire file - {HeaderSz0, LineNo, Fd, - Sections#sections{type = guess_type(Line2)}}; - Sections#sections.shebang =:= undefined -> - %% No shebang. Skip the first line - {HeaderSz1, LineNo, Fd, - Sections#sections{type = guess_type(Line2)}}; - Line2Type =:= comment -> - %% Skip shebang on first line and comment on second - {HeaderSz2, LineNo + 2, Fd, - Sections#sections{type = guess_type(Line3), - comment = Line2}}; - true -> - %% Just skip shebang on first line - {HeaderSz1, LineNo + 1, Fd, - Sections#sections{type = guess_type(Line2)}} - end + if + Sections#sections.shebang =:= undefined, + KeepFirst =:= true -> + %% No shebang. Use the entire file + {HeaderSz0, LineNo, Fd, + Sections#sections{type = guess_type(Line2)}}; + Sections#sections.shebang =:= undefined -> + %% No shebang. Skip the first line + {HeaderSz1, LineNo, Fd, + Sections#sections{type = guess_type(Line2)}}; + true -> + case classify_line(Line2) of + emu_args -> + %% Skip special comment on second line + Line3 = get_line(Fd), + {HeaderSz2, LineNo + 2, Fd, + Sections#sections{type = guess_type(Line3), + comment = undefined, + emu_args = Line2}}; + comment -> + %% Look for special comment on third line + Line3 = get_line(Fd), + {ok, HeaderSz3} = file:position(Fd, cur), + Line3Type = classify_line(Line3), + if + Line3Type =:= emu_args -> + %% Skip special comment on third line + Line4 = get_line(Fd), + {HeaderSz3, LineNo + 3, Fd, + Sections#sections{type = guess_type(Line4), + comment = Line2, + emu_args = Line3}}; + true -> + %% Skip shebang on first line and comment on second + {HeaderSz2, LineNo + 2, Fd, + Sections#sections{type = guess_type(Line3), + comment = Line2}} + end; + _ -> + %% Just skip shebang on first line + {HeaderSz1, LineNo + 1, Fd, + Sections#sections{type = guess_type(Line2)}} + end end. classify_line(Line) -> @@ -626,8 +629,7 @@ parse_source(S, File, Fd, StartLine, HeaderSz, CheckOnly) -> {error, _} -> epp_parse_file2(Epp, S2, [FileForm], OptModRes); {eof, LastLine} -> - Anno = anno(LastLine), - S#state{forms_or_bin = [FileForm, {eof, Anno}]} + S#state{forms_or_bin = [FileForm, {eof, LastLine}]} end, ok = epp:close(Epp), ok = file:close(Fd), @@ -725,8 +727,7 @@ epp_parse_file2(Epp, S, Forms, Parsed) -> [S#state.file,Ln,Mod:format_error(Args)]), epp_parse_file(Epp, S#state{n_errors = S#state.n_errors + 1}, [Form | Forms]); {eof, LastLine} -> - Anno = anno(LastLine), - S#state{forms_or_bin = lists:reverse([{eof, Anno} | Forms])} + S#state{forms_or_bin = lists:reverse([{eof, LastLine} | Forms])} end. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -757,8 +758,8 @@ run(Module, Args) -> Module:main(Args), my_halt(0) catch - Class:Reason -> - fatal(format_exception(Class, Reason)) + Class:Reason:StackTrace -> + fatal(format_exception(Class, Reason, StackTrace)) end. -spec interpret(_, _, _, _) -> no_return(). @@ -791,8 +792,8 @@ interpret(Forms, HasRecs, File, Args) -> end}), my_halt(0) catch - Class:Reason -> - fatal(format_exception(Class, Reason)) + Class:Reason:StackTrace -> + fatal(format_exception(Class, Reason, StackTrace)) end. report_errors(Errors) -> @@ -858,7 +859,7 @@ code_handler(Name, Args, Dict, File) -> %% io:format("Calling:~p~n",[{Mod,Name,Args}]), apply(Mod, Name, Args); error -> - io:format("Script does not export ~w/~w\n", [Name,Arity]), + io:format("Script does not export ~tw/~w\n", [Name,Arity]), my_halt(127) end end. @@ -871,7 +872,7 @@ eval_exprs([E|Es], Bs0, Lf, Ef, RBs) -> {value,_V,Bs} = erl_eval:expr(E, Bs0, Lf, Ef, RBs1), eval_exprs(Es, Bs, Lf, Ef, RBs). -format_exception(Class, Reason) -> +format_exception(Class, Reason, StackTrace) -> Enc = encoding(), P = case Enc of latin1 -> "P"; @@ -880,9 +881,8 @@ format_exception(Class, Reason) -> PF = fun(Term, I) -> io_lib:format("~." ++ integer_to_list(I) ++ P, [Term, 50]) end, - StackTrace = erlang:get_stacktrace(), StackFun = fun(M, _F, _A) -> (M =:= erl_eval) or (M =:= ?MODULE) end, - lib:format_exception(1, Class, Reason, StackTrace, StackFun, PF, Enc). + erl_error:format_exception(1, Class, Reason, StackTrace, StackFun, PF, Enc). encoding() -> [{encoding, Encoding}] = enc(), @@ -906,6 +906,7 @@ anno(L) -> fatal(Str) -> throw(Str). +-spec my_halt(_) -> no_return(). my_halt(Reason) -> erlang:halt(Reason). @@ -913,8 +914,8 @@ hidden_apply(App, M, F, Args) -> try apply(fun() -> M end(), F, Args) catch - error:undef -> - case erlang:get_stacktrace() of + error:undef:StackTrace -> + case StackTrace of [{M,F,Args,_} | _] -> Arity = length(Args), Text = io_lib:format("Call to ~w:~w/~w in application ~w failed.\n", |