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bug#10256: 23.1; Speedbar does not display GNAT Ada files by default
From: |
Juanma Barranquero |
Subject: |
bug#10256: 23.1; Speedbar does not display GNAT Ada files by default |
Date: |
Sat, 10 Dec 2011 15:17:55 +0100 |
On Sat, Dec 10, 2011 at 08:55, Glenn Morris <rgm@gnu.org> wrote:
> I think in future this variable should derive from auto-mode-alist in
> some way. Eg (car (rassoc 'ada-mode auto-mode-alist)) is equivalent to
> the current ada setting. Or there should be a subroutine of
> set-auto-mode that returns the mode for a given filename. Otherwise
> speedbar-supported-extension-expressions is likely to be out-of-date (eg
> the Fortran entries are). speedbar should define the _modes_ it can
> support, rather than file extensions.
Good idea.
> There are other ada entries in auto-mode-alist, are these relevant?
>
> ("\\.ad[bs].dg\\'" . ada-mode)
These are "expanded sources", generated by GNAT:
`-gnatD[=nn]'
When used in conjunction with `-gnatG', this switch causes the
expanded source, as described above for `-gnatG' to be written to
files with names `xxx.dg', where `xxx' is the normal file name,
instead of to the standard output file. For example, if the source
file name is `hello.adb', then a file `hello.adb.dg' will be
written. The debugging information generated by the `gcc' `-g'
switch will refer to the generated `xxx.dg' file. This allows you
to do source level debugging using the generated code which is
sometimes useful for complex code, for example to find out exactly
which part of a complex construction raised an exception. This
switch also suppress generation of cross-reference information (see
`-gnatx') since otherwise the cross-reference information would
refer to the `.dg' file, which would cause confusion since this is
not the original source file.
Juanma