emulator: Add a fourth element in exception stacktraces

This commit is a preparation for introducing location information
(filename/line number) in stacktraces in exceptions. Currently
a stack trace looks like:

  [{Mod1,Function1,Arity1},
   .
   .
   .
   {ModN,FunctionN,ArityN}]

Add a forth element to each tuple that can be used indication
the filename and line number of the source file:

  [{Mod1,Function1,Arity1,Location1},
   .
   .
   .
   {ModN,FunctionN,ArityN,LocationN}]

In this commit, the fourth element will just be an empty list,
and we will change all code that look at or manipulate stacktraces.

1 files changed, 8 insertions, 8 deletions

diff --git a/lib/stdlib/src/re.erl b/lib/stdlib/src/re.erl
index e08258a535..99bcbd722e 100644
--- a/lib/stdlib/src/re.erl
+++ b/lib/stdlib/src/re.erl
@@ -573,10 +573,10 @@ ucompile(RE,Options) ->
 	re:compile(unicode:characters_to_binary(RE,unicode),Options)
     catch
 	error:AnyError ->
-	    {'EXIT',{new_stacktrace,[{Mod,_,L}|Rest]}} = 
+	    {'EXIT',{new_stacktrace,[{Mod,_,L,Loc}|Rest]}} =
 		(catch erlang:error(new_stacktrace,
 				    [RE,Options])),
-	    erlang:raise(error,AnyError,[{Mod,compile,L}|Rest])
+	    erlang:raise(error,AnyError,[{Mod,compile,L,Loc}|Rest])
     end.
 	
 
@@ -585,10 +585,10 @@ urun(Subject,RE,Options) ->
 	urun2(Subject,RE,Options)
     catch
 	error:AnyError ->
-	    {'EXIT',{new_stacktrace,[{Mod,_,L}|Rest]}} = 
+	    {'EXIT',{new_stacktrace,[{Mod,_,L,Loc}|Rest]}} =
 		(catch erlang:error(new_stacktrace,
 				    [Subject,RE,Options])),
-	    erlang:raise(error,AnyError,[{Mod,run,L}|Rest])
+	    erlang:raise(error,AnyError,[{Mod,run,L,Loc}|Rest])
     end.
 
 urun2(Subject0,RE0,Options0) ->
@@ -625,20 +625,20 @@ grun(Subject,RE,{Options,NeedClean}) ->
 	grun2(Subject,RE,{Options,NeedClean})
     catch
 	error:AnyError ->
-	    {'EXIT',{new_stacktrace,[{Mod,_,L}|Rest]}} = 
+	    {'EXIT',{new_stacktrace,[{Mod,_,L,Loc}|Rest]}} =
 		(catch erlang:error(new_stacktrace,
 				    [Subject,RE,Options])),
-	    erlang:raise(error,AnyError,[{Mod,run,L}|Rest])
+	    erlang:raise(error,AnyError,[{Mod,run,L,Loc}|Rest])
     end;
 grun(Subject,RE,{Options,NeedClean,OrigRE}) ->
     try
 	grun2(Subject,RE,{Options,NeedClean})
     catch
 	error:AnyError ->
-	    {'EXIT',{new_stacktrace,[{Mod,_,L}|Rest]}} = 
+	    {'EXIT',{new_stacktrace,[{Mod,_,L,Loc}|Rest]}} =
 		(catch erlang:error(new_stacktrace,
 				    [Subject,OrigRE,Options])),
-	    erlang:raise(error,AnyError,[{Mod,run,L}|Rest])
+	    erlang:raise(error,AnyError,[{Mod,run,L,Loc}|Rest])
     end.
 
 grun2(Subject,RE,{Options,NeedClean}) ->