diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/src/epp.erl | 79 | ||||
| -rw-r--r-- | lib/stdlib/test/epp_SUITE.erl | 4 |
2 files changed, 37 insertions, 46 deletions
diff --git a/lib/stdlib/src/epp.erl b/lib/stdlib/src/epp.erl index 46c23fd0e0..d9a579ebc6 100644 --- a/lib/stdlib/src/epp.erl +++ b/lib/stdlib/src/epp.erl @@ -820,59 +820,26 @@ scan_extends(_Ts, Ms) -> Ms. %% scan_define(Tokens, DefineToken, From, EppState) -scan_define([{'(',_Lp},{Type,_Lm,M}=Mac,{',',_}=Comma|Toks], _Def, From, St) +scan_define([{'(',_Lp},{Type,_Lm,_}=Mac|Toks], Def, From, St) when Type =:= atom; Type =:= var -> + scan_define_1(Toks, Mac, Def, From, St); +scan_define(_Toks, Def, From, St) -> + epp_reply(From, {error,{loc(Def),epp,{bad,define}}}), + wait_req_scan(St). + +scan_define_1([{',',_}=Comma|Toks], Mac,_Def, From, St) -> case catch macro_expansion(Toks, Comma) of Expansion when is_list(Expansion) -> - case dict:find({atom,M}, St#epp.macs) of - {ok, Defs} when is_list(Defs) -> - %% User defined macros: can be overloaded - case proplists:is_defined(none, Defs) of - true -> - epp_reply(From, {error,{loc(Mac),epp,{redefine,M}}}), - wait_req_scan(St); - false -> - scan_define_cont(From, St, - {atom, M}, - {none, {none,Expansion}}) - end; - {ok, _PreDef} -> - %% Predefined macros: cannot be overloaded - epp_reply(From, {error,{loc(Mac),epp,{redefine_predef,M}}}), - wait_req_scan(St); - error -> - scan_define_cont(From, St, - {atom, M}, - {none, {none,Expansion}}) - end; + scan_define_2(none, {none,Expansion}, Mac, From, St); {error,ErrL,What} -> epp_reply(From, {error,{ErrL,epp,What}}), wait_req_scan(St) end; -scan_define([{'(',_Lp},{Type,_Lm,M}=Mac,{'(',_Lc}|Toks], Def, From, St) - when Type =:= atom; Type =:= var -> +scan_define_1([{'(',_Lc}|Toks], Mac, Def, From, St) -> case catch macro_pars(Toks, []) of - {ok, {As,Me}} -> + {ok,{As,_}=MacroDef} -> Len = length(As), - case dict:find({atom,M}, St#epp.macs) of - {ok, Defs} when is_list(Defs) -> - %% User defined macros: can be overloaded - case proplists:is_defined(Len, Defs) of - true -> - epp_reply(From,{error,{loc(Mac),epp,{redefine,M}}}), - wait_req_scan(St); - false -> - scan_define_cont(From, St, {atom, M}, - {Len, {As, Me}}) - end; - {ok, _PreDef} -> - %% Predefined macros: cannot be overloaded - %% (There are currently no predefined F(...) macros.) - epp_reply(From, {error,{loc(Mac),epp,{redefine_predef,M}}}), - wait_req_scan(St); - error -> - scan_define_cont(From, St, {atom, M}, {Len, {As, Me}}) - end; + scan_define_2(Len, MacroDef, Mac, From, St); {error,ErrL,What} -> epp_reply(From, {error,{ErrL,epp,What}}), wait_req_scan(St); @@ -880,10 +847,30 @@ scan_define([{'(',_Lp},{Type,_Lm,M}=Mac,{'(',_Lc}|Toks], Def, From, St) epp_reply(From, {error,{loc(Def),epp,{bad,define}}}), wait_req_scan(St) end; -scan_define(_Toks, Def, From, St) -> +scan_define_1(_Toks, _Mac, Def, From, St) -> epp_reply(From, {error,{loc(Def),epp,{bad,define}}}), wait_req_scan(St). +scan_define_2(Arity, Def, {_,_,M}=Mac, From, St) -> + Key = {atom,M}, + case dict:find(Key, St#epp.macs) of + {ok,Defs} when is_list(Defs) -> + %% User defined macros: can be overloaded + case proplists:is_defined(Arity, Defs) of + true -> + epp_reply(From, {error,{loc(Mac),epp,{redefine,M}}}), + wait_req_scan(St); + false -> + scan_define_cont(From, St, Key, Arity, Def) + end; + {ok,_PreDef} -> + %% Predefined macros: cannot be overloaded + epp_reply(From, {error,{loc(Mac),epp,{redefine_predef,M}}}), + wait_req_scan(St); + error -> + scan_define_cont(From, St, Key, Arity, Def) + end. + %%% Detection of circular macro expansions (which would either keep %%% the compiler looping forever, or run out of memory): %%% When a macro is defined, we store the names of other macros it @@ -893,7 +880,7 @@ scan_define(_Toks, Def, From, St) -> %%% the information from St#epp.uses is traversed, and if a circularity %%% is detected, an error message is thrown. -scan_define_cont(F, St, M, {Arity, Def}) -> +scan_define_cont(F, St, M, Arity, Def) -> Ms = dict:append_list(M, [{Arity, Def}], St#epp.macs), try dict:append_list(M, [{Arity, macro_uses(Def)}], St#epp.uses) of U -> diff --git a/lib/stdlib/test/epp_SUITE.erl b/lib/stdlib/test/epp_SUITE.erl index 90642b2dca..4c007e76ad 100644 --- a/lib/stdlib/test/epp_SUITE.erl +++ b/lib/stdlib/test/epp_SUITE.erl @@ -811,6 +811,10 @@ otp_8130(Config) when is_list(Config) -> <<"\n-include(\"no such file.erl\").\n">>, {errors,[{{2,2},epp,{include,file,"no such file.erl"}}],[]}}, + {otp_8130_c25, + <<"\n-define(A.\n">>, + {errors,[{{2,2},epp,{bad,define}}],[]}}, + {otp_8130_7, <<"-record(b, {b}).\n" "-define(A, {{a,#b.b.\n" |