[PATCH] Java: temporary fix to cope with recent tree.h changes.

Mon Dec 13 00:00:00 GMT 1999

 In message < 199912110056.QAA08658@deliverance.cygnus.com >you write:
 > The recent changes to tree.h are breaking the Java front-end,
 > something that I'll work on fixing ASAP -- this is independent from
 > the work that needs to be done in order for the Java front-end to do
 > The Right Thing as far as handling qualified expressions (using
 > COMPONENT_REF.)
 > 
 > Historically, with TREE_CHAIN used to hold the filename of a
 > EXPR_WITH_FILE_LOCATION (WFL), it left operand1 free for front-end
 > specific use, which is what the Java front-end took advantage of. The
 > issue over the use of TREE_CHAIN for something else than chaining
 > nodes was moderately debated when WFLs were introduced
 > ( http://www.cygnus.com/ml/egcs/1998-Mar/0831.html ).
 > 
 > Mark Mitchell's patch to tree.h
 > ( http://gcc.gnu.org/ml/gcc-patches/1999-12/msg00133.html ) stores the
 > filename in operand1 and TREE_CHAIN can be now used to link WFLs
 > together. Of course, this conflict with the use the Java front-end
 > makes of operand1.
 > 
 > This patch is a temporary fix in order for the Java front-end to keep
 > on working. It extends the number of operand a WFL can have to 3 and
 > instruct the Java parser to now use operand2 instead of operand1.
 > 
 > I need approval to check in the non Java part of this patch.
 > 
 > ./A
 > 
 > Fri Dec 10 16:12:13 1999 Alexandre Petit-Bianco <apbianco@cygnus.com>
 > 
 > 	* tree.def (EXPR_WITH_FILE_LOCATION): To temporary feature three
 > 	operands, until the Java front-end gets fixed with regard to Mark
 > 	Mitchell's tree.h patch (1999年12月04日.)
I'm a little confused. Initially your explanation states that this is needed
to DTRT for handling qualified expressions. But later you state that it's
a temporary fix. If it's just a temporary fix, how long until the real fix
is available -- depending on the timeframe , it may not make sense to put in
a band-aid like this.
Which is it? A short term fix, or a necessary step to DTRT.
jeff