diff options
| -rw-r--r-- | lib/stdlib/src/epp.erl | 55 | ||||
| -rw-r--r-- | lib/stdlib/test/epp_SUITE.erl | 62 |
2 files changed, 66 insertions, 51 deletions
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl index f144cbb938..81b2431f40 100644 --- a/lib/stdlib/src/epp.erl +++ b/lib/stdlib/src/epp.erl @@ -111,6 +111,8 @@ format_error({bad,W}) -> io_lib:format("badly formed '~s'", [W]); format_error(missing_parenthesis) -> io_lib:format("badly formed define: missing closing right parenthesis",[]); +format_error(premature_end) -> + "premature end"; format_error({call,What}) -> io_lib:format("illegal macro call '~s'",[What]); format_error({undefined,M,none}) -> @@ -163,7 +165,7 @@ parse_file(Epp) -> case normalize_typed_record_fields(Fields) of {typed, NewFields} -> [{attribute, La, record, {Record, NewFields}}, - {attribute, La, type, + {attribute, La, type, {{record, Record}, Fields, []}} |parse_file(Epp)]; not_typed -> @@ -188,7 +190,7 @@ normalize_typed_record_fields([], NewFields, Typed) -> true -> {typed, lists:reverse(NewFields)}; false -> not_typed end; -normalize_typed_record_fields([{typed_record_field,Field,_}|Rest], +normalize_typed_record_fields([{typed_record_field,Field,_}|Rest], NewFields, _Typed) -> normalize_typed_record_fields(Rest, [Field|NewFields], true); normalize_typed_record_fields([Field|Rest], NewFields, Typed) -> @@ -324,7 +326,7 @@ wait_req_scan(St) -> wait_req_skip(St, Sis) -> From = wait_request(St), skip_toks(From, St, Sis). - + %% enter_file(Path, FileName, IncludeToken, From, EppState) %% leave_file(From, EppState) %% Handle entering and leaving included files. Notify caller when the @@ -380,16 +382,16 @@ file_name(N) when is_atom(N) -> leave_file(From, St) -> case St#epp.istk of - [I|Cis] -> + [I|Cis] -> epp_reply(From, - {error,{St#epp.location,epp, + {error,{St#epp.location,epp, {illegal,"unterminated",I}}}), leave_file(wait_request(St),St#epp{istk=Cis}); [] -> case St#epp.sstk of [OldSt|Sts] -> close_file(St), - enter_file_reply(From, OldSt#epp.name, + enter_file_reply(From, OldSt#epp.name, OldSt#epp.location, OldSt#epp.location), Ms = dict:store({atom,'FILE'}, {none, @@ -491,9 +493,9 @@ scan_extends(_Ts, _As, Ms) -> Ms. %% scan_define(Tokens, DefineToken, From, EppState) -scan_define([{'(',_Lp},{Type,_Lm,M}=Mac,{',',_Lc}|Toks], _Def, From, St) +scan_define([{'(',_Lp},{Type,_Lm,M}=Mac,{',',Lc}|Toks], _Def, From, St) when Type =:= atom; Type =:= var -> - case catch macro_expansion(Toks) of + case catch macro_expansion(Toks, Lc) of Expansion when is_list(Expansion) -> case dict:find({atom,M}, St#epp.macs) of {ok, Defs} when is_list(Defs) -> @@ -608,7 +610,7 @@ scan_undef(_Toks, Undef, From, St) -> %% scan_include(Tokens, IncludeToken, From, St) -scan_include([{'(',_Llp},{string,_Lf,NewName0},{')',_Lrp},{dot,_Ld}], Inc, +scan_include([{'(',_Llp},{string,_Lf,NewName0},{')',_Lrp},{dot,_Ld}], Inc, From, St) -> NewName = expand_var(NewName0), enter_file(St#epp.path, NewName, Inc, From, St); @@ -644,7 +646,7 @@ scan_include_lib([{'(',_Llp},{string,_Lf,NewName0},{')',_Lrp},{dot,_Ld}], case file:open(LibName, [read]) of {ok,NewF} -> ExtraPath = [filename:dirname(LibName)], - wait_req_scan(enter_file2(NewF, LibName, From, + wait_req_scan(enter_file2(NewF, LibName, From, St, Loc, ExtraPath)); {error,_E2} -> epp_reply(From, @@ -773,7 +775,7 @@ scan_file(_Toks, Tf, From, St) -> new_location(Ln, Le, Lf) when is_integer(Lf) -> Ln+(Le-Lf); -new_location(Ln, {Le,_}, {Lf,_}) -> +new_location(Ln, {Le,_}, {Lf,_}) -> {Ln+(Le-Lf),1}. %% skip_toks(From, EppState, SkipIstack) @@ -814,22 +816,23 @@ skip_else(_Else, From, St, Sis) -> skip_toks(From, St, Sis). %% macro_pars(Tokens, ArgStack) -%% macro_expansion(Tokens) +%% macro_expansion(Tokens, Line) %% Extract the macro parameters and the expansion from a macro definition. -macro_pars([{')',_Lp}, {',',_Ld}|Ex], Args) -> - {ok, {lists:reverse(Args), macro_expansion(Ex)}}; -macro_pars([{var,_,Name}, {')',_Lp}, {',',_Ld}|Ex], Args) -> +macro_pars([{')',_Lp}, {',',Ld}|Ex], Args) -> + {ok, {lists:reverse(Args), macro_expansion(Ex, Ld)}}; +macro_pars([{var,_,Name}, {')',_Lp}, {',',Ld}|Ex], Args) -> false = lists:member(Name, Args), %Prolog is nice - {ok, {lists:reverse([Name|Args]), macro_expansion(Ex)}}; + {ok, {lists:reverse([Name|Args]), macro_expansion(Ex, Ld)}}; macro_pars([{var,_L,Name}, {',',_}|Ts], Args) -> - false = lists:member(Name, Args), + false = lists:member(Name, Args), macro_pars(Ts, [Name|Args]). -macro_expansion([{')',_Lp},{dot,_Ld}]) -> []; -macro_expansion([{dot,Ld}]) -> throw({error,Ld,missing_parenthesis}); -macro_expansion([T|Ts]) -> - [T|macro_expansion(Ts)]. +macro_expansion([{')',_Lp},{dot,_Ld}], _L0) -> []; +macro_expansion([{dot,Ld}], _L0) -> throw({error,Ld,missing_parenthesis}); +macro_expansion([T|Ts], _L0) -> + [T|macro_expansion(Ts, element(2, T))]; +macro_expansion([], L0) -> throw({error,L0,premature_end}). %% expand_macros(Tokens, Macros) %% expand_macro(Tokens, MacroToken, RestTokens) @@ -1084,11 +1087,11 @@ epp_reply(From, Rep) -> wait_epp_reply(Epp, Mref) -> receive - {epp_reply,Epp,Rep} -> + {epp_reply,Epp,Rep} -> erlang:demonitor(Mref), receive {'DOWN',Mref,_,_,_} -> ok after 0 -> ok end, Rep; - {'DOWN',Mref,_,_,E} -> + {'DOWN',Mref,_,_,E} -> receive {epp_reply,Epp,Rep} -> Rep after 0 -> exit(E) end @@ -1145,7 +1148,7 @@ get_line({Line,_Column}) -> %% mainly aimed at yecc, the parser generator, which uses the -file %% attribute to get correct lines in messages referring to code %% supplied by the user (actions etc in .yrl files). -%% +%% %% In a perfect world (read: perfectly implemented applications such %% as Xref, Cover, Debugger, etc.) it would not be necessary to %% distinguish -file attributes from epp and the input file. The @@ -1165,7 +1168,7 @@ get_line({Line,_Column}) -> %% have been output by epp (corresponding to -include and %% -include_lib) are kept, but the user's -file attributes are %% removed. This seems sufficient for now. -%% +%% %% It turns out to be difficult to distinguish -file attributes in the %% input file from the ones added by epp unless some action is taken. %% The (less than perfect) solution employed is to let epp assign @@ -1177,7 +1180,7 @@ get_line({Line,_Column}) -> interpret_file_attribute(Forms) -> interpret_file_attr(Forms, 0, []). -interpret_file_attr([{attribute,Loc,file,{File,Line}}=Form | Forms], +interpret_file_attr([{attribute,Loc,file,{File,Line}}=Form | Forms], Delta, Fs) -> {line, L} = erl_scan:attributes_info(Loc, line), if diff --git a/lib/stdlib/test/epp_SUITE.erl b/lib/stdlib/test/epp_SUITE.erl index 4806b5d361..e31dfdd764 100644 --- a/lib/stdlib/test/epp_SUITE.erl +++ b/lib/stdlib/test/epp_SUITE.erl @@ -19,12 +19,12 @@ -module(epp_SUITE). -export([all/1]). --export([rec_1/1, predef_mac/1, +-export([rec_1/1, predef_mac/1, upcase_mac/1, upcase_mac_1/1, upcase_mac_2/1, variable/1, variable_1/1, otp_4870/1, otp_4871/1, otp_5362/1, pmod/1, not_circular/1, skip_header/1, otp_6277/1, otp_7702/1, otp_8130/1, overload_mac/1, otp_8388/1, otp_8470/1, otp_8503/1, - otp_8562/1]). + otp_8562/1, otp_8665/1]). -export([epp_parse_erl_form/2]). @@ -39,7 +39,7 @@ -define(config(A,B),config(A,B)). %% -define(t, test_server). -define(t, io). -config(priv_dir, _) -> +config(priv_dir, _) -> filename:absname("./epp_SUITE_priv"); config(data_dir, _) -> filename:absname("./epp_SUITE_data"). @@ -64,7 +64,7 @@ all(doc) -> all(suite) -> [rec_1, upcase_mac, predef_mac, variable, otp_4870, otp_4871, otp_5362, pmod, not_circular, skip_header, otp_6277, otp_7702, otp_8130, - overload_mac, otp_8388, otp_8470, otp_8503, otp_8562]. + overload_mac, otp_8388, otp_8470, otp_8503, otp_8562, otp_8665]. rec_1(doc) -> ["Recursive macros hang or crash epp (OTP-1398)."]; @@ -192,7 +192,7 @@ variable_1(Config) when is_list(Config) -> %% variable_1.erl includes variable_1_include.hrl and %% variable_1_include_dir.hrl. ?line {ok, List} = epp:parse_file(File, [], []), - ?line {value, {attribute,_,a,{value1,value2}}} = + ?line {value, {attribute,_,a,{value1,value2}}} = lists:keysearch(a,3,List), ok. @@ -219,13 +219,13 @@ otp_4871(Config) when is_list(Config) -> %% Testing crash in erl_scan. Unfortunately there currently is %% no known way to crash erl_scan so it is emulated by killing the %% file io server. This assumes lots of things about how - %% the processes are started and how monitors are set up, + %% the processes are started and how monitors are set up, %% so there are some sanity checks before killing. ?line {ok,Epp} = epp:open(File, []), timer:sleep(1), ?line {current_function,{epp,_,_}} = process_info(Epp, current_function), ?line {monitored_by,[Io]} = process_info(Epp, monitored_by), - ?line {current_function,{file_io_server,_,_}} = + ?line {current_function,{file_io_server,_,_}} = process_info(Io, current_function), ?line exit(Io, emulate_crash), timer:sleep(1), @@ -302,7 +302,7 @@ otp_5362(Config) when is_list(Config) -> Back_hrl = [<<" -file(\"">>,File_Back,<<"\", 2). ">>], - + ?line ok = file:write_file(File_Back, Back), ?line ok = file:write_file(File_Back_hrl, list_to_binary(Back_hrl)), @@ -333,7 +333,7 @@ otp_5362(Config) when is_list(Config) -> ?line ok = file:write_file(File_Change, list_to_binary(Change)), - ?line {ok, change_5362, ChangeWarnings} = + ?line {ok, change_5362, ChangeWarnings} = compile:file(File_Change, Copts), ?line true = message_compare( [{File_Change,[{{1002,21},erl_lint,{unused_var,'B'}}]}, @@ -441,9 +441,9 @@ skip_header(Config) when is_list(Config) -> that should be skipped -module(epp_test_skip_header). -export([main/1]). - + main(_) -> ?MODULE. - + ">>), ?line {ok, Fd} = file:open(File, [read]), ?line io:get_line(Fd, ''), @@ -494,9 +494,9 @@ otp_7702(Config) when is_list(Config) -> t() -> ?RECEIVE(foo, bar).">>, ?line ok = file:write_file(File, Contents), - ?line {ok, file_7702, []} = + ?line {ok, file_7702, []} = compile:file(File, [debug_info,return,{outdir,Dir}]), - + BeamFile = filename:join(Dir, "file_7702.beam"), {ok, AC} = beam_lib:chunks(BeamFile, [abstract_code]), @@ -506,7 +506,7 @@ otp_7702(Config) when is_list(Config) -> L end, Forms2 = [erl_lint:modify_line(Form, Fun) || Form <- Forms], - ?line + ?line [{attribute,1,file,_}, _, _, @@ -637,7 +637,7 @@ otp_8130(Config) when is_list(Config) -> ], ?line [] = run(Config, Ts), - + Cs = [{otp_8130_c1, <<"-define(M1(A), if\n" "A =:= 1 -> B;\n" @@ -681,7 +681,7 @@ otp_8130(Config) when is_list(Config) -> <<"\n-include_lib(\"$apa/foo.hrl\").\n">>, {errors,[{{2,2},epp,{include,lib,"$apa/foo.hrl"}}],[]}}, - + {otp_8130_c9, <<"-define(S, ?S).\n" "t() -> ?S.\n">>, @@ -775,7 +775,7 @@ otp_8130(Config) when is_list(Config) -> ?line Dir = ?config(priv_dir, Config), ?line File = filename:join(Dir, "otp_8130.erl"), - ?line ok = file:write_file(File, + ?line ok = file:write_file(File, "-module(otp_8130).\n" "-define(a, 3.14).\n" "t() -> ?a.\n"), @@ -788,7 +788,7 @@ otp_8130(Config) when is_list(Config) -> ?line {eof,_} = epp:scan_erl_form(Epp), ?line ['BASE_MODULE','BASE_MODULE_STRING','BEAM','FILE','LINE', 'MACHINE','MODULE','MODULE_STRING',a] = macs(Epp), - ?line epp:close(Epp), + ?line epp:close(Epp), %% escript ModuleStr = "any_name", @@ -815,7 +815,7 @@ otp_8130(Config) when is_list(Config) -> PreDefMacros = [{a,1},a], ?line {error,{redefine,a}} = epp:open(File, [], PreDefMacros) end(), - + ?line {error,enoent} = epp:open("no such file", []), ?line {error,enoent} = epp:parse_file("no such file", [], []), @@ -941,7 +941,7 @@ ifdef(Config) -> <<"\n-if.\n" "-endif.\n">>, {errors,[{{2,2},epp,{'NYI','if'}}],[]}}, - + {define_c7, <<"-ifndef(a).\n" "-elif.\n" @@ -1197,6 +1197,18 @@ otp_8562(Config) when is_list(Config) -> ?line [] = compile(Config, Cs), ok. +otp_8665(doc) -> + ["OTP-8665. Bugfix premature end."]; +otp_8665(suite) -> + []; +otp_8665(Config) when is_list(Config) -> + Cs = [{otp_8562, + <<"-define(A, a)\n">>, + {errors,[{{1,54},epp,premature_end}],[]}} + ], + ?line [] = compile(Config, Cs), + ok. + check(Config, Tests) -> eval_tests(Config, fun check_test/2, Tests). @@ -1213,7 +1225,7 @@ eval_tests(Config, Fun, Tests) -> case message_compare(E, Return) of true -> BadL; - false -> + false -> ?t:format("~nTest ~p failed. Expected~n ~p~n" "but got~n ~p~n", [N, E, Return]), fail() @@ -1228,9 +1240,9 @@ check_test(Config, Test) -> ?line File = filename:join(PrivDir, Filename), ?line ok = file:write_file(File, Test), ?line case epp:parse_file(File, [PrivDir], []) of - {ok,Forms} -> + {ok,Forms} -> [E || E={error,_} <- Forms]; - {error,Error} -> + {error,Error} -> Error end. @@ -1245,7 +1257,7 @@ compile_test(Config, Test0) -> {ok, Ws} -> warnings(File, Ws); Else -> Else end. - + warnings(File, Ws) -> case lists:append([W || {F, W} <- Ws, F =:= File]) of [] -> []; @@ -1289,7 +1301,7 @@ message_compare(T, T) -> message_compare(T1, T2) -> ln(T1) =:= T2. -%% Replaces locations like {Line,Column} with Line. +%% Replaces locations like {Line,Column} with Line. ln({warnings,L}) -> {warnings,ln0(L)}; ln({errors,EL,WL}) -> |