[commit/ada] Add support for Ada interface types

[Joel Brobecker <brobecker at adacore dot com>]

Hello,

Ada 2005 introduces the concept of "interface" types, a-la Java.
Internally, the compiler added an extra hidden field inside the
object structure which should not be displayed when printing the
value of an object of that type. The attached patch teaches the
debugger to ignore the field that points the the interface dispatch
table.

2008-01-01  Joel Brobecker  <brobecker@adacore.com>

        Implement support for Ada interface types.

        * ada-lang.c (ada_is_dispatch_table_ptr_type): New function.
        (ada_is_ignored_field): Ignore fields that are a dispatch table
        of a tagged type.

I also added a testcase for this new feature:

2008-01-01  Joel Brobecker  <brobecker@adacore.com>

        * gdb.ada/interface/types.ads, gdb.ada/interface/types.adb,
        gdb.ada/interface/foo.adb: New files.
        * gdb.ada/interface.exp: New testcase.

Tested on x86-linux, no regression.
All checked in.

-- 
Joel

Attachment: iface.diff
Description: Text document

Attachment: iface-testcase.diff
Description: Text document