parsetools: Do not call erlang:get_stacktrace()

1 files changed, 6 insertions, 8 deletions

diff --git a/lib/parsetools/src/yeccparser.erl b/lib/parsetools/src/yeccparser.erl
index 6f6f66d56c..45d91a83a3 100644
--- a/lib/parsetools/src/yeccparser.erl
+++ b/lib/parsetools/src/yeccparser.erl
@@ -72,8 +72,7 @@ return_error(Line, Message) ->
 yeccpars0(Tokens, Tzr, State, States, Vstack) ->
     try yeccpars1(Tokens, Tzr, State, States, Vstack)
     catch 
-        error: Error ->
-            Stacktrace = erlang:get_stacktrace(),
+        error: Error: Stacktrace ->
             try yecc_error_type(Error, Stacktrace) of
                 Desc ->
                     erlang:raise(error, {yecc_bug, ?CODE_VERSION, Desc},
@@ -167,21 +166,20 @@ yecctoken_location(Token) ->
     end.
 
 -compile({nowarn_unused_function, yecctoken2string/1}).
-yecctoken2string({atom, _, A}) -> io_lib:write(A);
+yecctoken2string({atom, _, A}) -> io_lib:write_atom(A);
 yecctoken2string({integer,_,N}) -> io_lib:write(N);
 yecctoken2string({float,_,F}) -> io_lib:write(F);
 yecctoken2string({char,_,C}) -> io_lib:write_char(C);
 yecctoken2string({var,_,V}) -> io_lib:format("~s", [V]);
 yecctoken2string({string,_,S}) -> io_lib:write_string(S);
 yecctoken2string({reserved_symbol, _, A}) -> io_lib:write(A);
-yecctoken2string({_Cat, _, Val}) -> io_lib:format("~p",[Val]);
+yecctoken2string({_Cat, _, Val}) -> io_lib:format("~tp", [Val]);
 yecctoken2string({dot, _}) -> "'.'";
-yecctoken2string({'$end', _}) ->
-    [];
+yecctoken2string({'$end', _}) -> [];
 yecctoken2string({Other, _}) when is_atom(Other) ->
-    io_lib:write(Other);
+    io_lib:write_atom(Other);
 yecctoken2string(Other) ->
-    io_lib:write(Other).
+    io_lib:format("~tp", [Other]).
 
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