Patch to fix PR9861

[TJ Laurenzo]

I have implemented Ian's suggested encoding.  This disambiguates the
forms by including a 'J' qualifier for java methods when the return
type is included.  I'll get the patch out tomorrow.  I'm getting a
build failure that has something to do with constructors and CNI and
haven't looked into it yet.

TJ

On 9/22/05, Ranjit Mathew <rmathew@gmail.com> wrote:
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> Ian Lance Taylor wrote:
> > Ian Lance Taylor <ian@airs.com> writes:
> >
> >
> >>TJ Laurenzo <tlaurenzo@gmail.com> writes:
> >>
> >>
> >>>The attached patch corrects PR9861 by including the return type in
> >>>mangled names in the C++ and Java compilers for Java class methods.
> >>>This changes the ABI for Java types but does not make any changes to
> >>>C++ programs that do not access Java types.
> >>
> >>How is the demangler going to work with this patch?  Is there any way
> >>for the demangler to determine which names are Java names and which
> >>are C++ names?  I don't see any obvious way, though I haven't looked
> >>that hard.
> >
> >
> > By the way, considering the demangler is not an unimportant point as
> > any ambiguity in demangling is an ambiguity that can be happen when
> > linking C++ and Java code together.  For example, your proposed
> > mangling for
> >     java.lang.Math.acos(double)
> > appears to be
> >     _ZN4java4lang4Math4acosEdd
> > which is the mangled name which will be used for the C++ function
> >     java::lang::Math::acos(double, double)
>
> If we are changing the mangling for "Java" classes, is it possible
> to have a mangling where the return type comes *before* the
> class-cum-method name to disambiguate a (say) "void foo::bar(int,int)"
> from an "int foo::bar(int)" when the return type is included?
>
> Right now, without this patch, these seem to be encoded as
> "ZN3foo3barEii" and "ZN3foo3barEi" respectively.
>
> Thanks,
> Ranjit.
>
> - --
> Ranjit Mathew       Email: rmathew AT gmail DOT com
>
> Bangalore, INDIA.     Web: http://ranjitmathew.hostingzero.com/
>
>
>
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