diff options
Diffstat (limited to 'lib/stdlib/src/epp.erl')
| -rw-r--r-- | lib/stdlib/src/epp.erl | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl index 71c465dec3..73934e0e3c 100644 --- a/lib/stdlib/src/epp.erl +++ b/lib/stdlib/src/epp.erl @@ -53,6 +53,8 @@ | {atom(),non_neg_integer()} | tokens(). +-type warning_info() :: {erl_anno:location(), module(), term()}. + -define(DEFAULT_ENCODING, utf8). %% Epp state record. @@ -158,11 +160,13 @@ scan_erl_form(Epp) -> epp_request(Epp, scan_erl_form). -spec parse_erl_form(Epp) -> - {'ok', AbsForm} | {'eof', Line} | {error, ErrorInfo} when + {'ok', AbsForm} | {error, ErrorInfo} | + {'warning',WarningInfo} | {'eof',Line} when Epp :: epp_handle(), AbsForm :: erl_parse:abstract_form(), Line :: erl_anno:line(), - ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(). + ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(), + WarningInfo :: warning_info(). parse_erl_form(Epp) -> case epp_request(Epp, scan_erl_form) of @@ -219,6 +223,10 @@ format_error({illegal_function_usage,Macro}) -> io_lib:format("?~s must not begin a form", [Macro]); format_error({'NYI',What}) -> io_lib:format("not yet implemented '~s'", [What]); +format_error({error,Term}) -> + io_lib:format("-error(~p).", [Term]); +format_error({warning,Term}) -> + io_lib:format("-warning(~p).", [Term]); format_error(E) -> file:format_error(E). -spec parse_file(FileName, IncludePath, PredefMacros) -> @@ -263,9 +271,11 @@ parse_file(Ifile, Options) -> -spec parse_file(Epp) -> [Form] when Epp :: epp_handle(), - Form :: erl_parse:abstract_form() | {'error', ErrorInfo} | {'eof',Line}, + Form :: erl_parse:abstract_form() | {'error', ErrorInfo} | + {'warning',WarningInfo} | {'eof',Line}, Line :: erl_anno:line(), - ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(). + ErrorInfo :: erl_scan:error_info() | erl_parse:error_info(), + WarningInfo :: warning_info(). parse_file(Epp) -> case parse_erl_form(Epp) of @@ -273,6 +283,8 @@ parse_file(Epp) -> [Form|parse_file(Epp)]; {error,E} -> [{error,E}|parse_file(Epp)]; + {warning,W} -> + [{warning,W}|parse_file(Epp)]; {eof,Location} -> [{eof,erl_anno:new(Location)}] end. @@ -752,6 +764,10 @@ scan_toks([{'-',_Lh},{atom,_Ld,define}=Define|Toks], From, St) -> scan_define(Toks, Define, From, St); scan_toks([{'-',_Lh},{atom,_Ld,undef}=Undef|Toks], From, St) -> scan_undef(Toks, Undef, From, St); +scan_toks([{'-',_Lh},{atom,_Ld,error}=Error|Toks], From, St) -> + scan_err_warn(Toks, Error, From, St); +scan_toks([{'-',_Lh},{atom,_Ld,warning}=Warn|Toks], From, St) -> + scan_err_warn(Toks, Warn, From, St); scan_toks([{'-',_Lh},{atom,_Li,include}=Inc|Toks], From, St) -> scan_include(Toks, Inc, From, St); scan_toks([{'-',_Lh},{atom,_Li,include_lib}=IncLib|Toks], From, St) -> @@ -807,6 +823,24 @@ scan_extends([{atom,Ln,A}=ModAtom,{')',_Lr}|_Ts], Ms0) -> Ms#{'BASE_MODULE_STRING':={none,[{string,Ln,ModString}]}}; scan_extends(_Ts, Ms) -> Ms. +scan_err_warn([{'(',_}|_]=Toks0, {atom,_,Tag}=Token, From, St) -> + try expand_macros(Toks0, St) of + Toks when is_list(Toks) -> + case erl_parse:parse_term(Toks) of + {ok,Term} -> + epp_reply(From, {Tag,{loc(Token),epp,{Tag,Term}}}); + {error,_} -> + epp_reply(From, {error,{loc(Token),epp,{bad,Tag}}}) + end + catch + _:_ -> + epp_reply(From, {error,{loc(Token),epp,{bad,Tag}}}) + end, + wait_req_scan(St); +scan_err_warn(_Toks, {atom,_,Tag}=Token, From, St) -> + epp_reply(From, {error,{loc(Token),epp,{bad,Tag}}}), + wait_req_scan(St). + %% scan_define(Tokens, DefineToken, From, EppState) scan_define([{'(',_Lp},{Type,_Lm,_}=Mac|Toks], Def, From, St) |