December 04, 2021

I'm not really sure what happened but replies from is apparently getting ignored by the mailing list, including this report :/ Can someone verify it? Anyway, for people that follow my blog, I posted this 2 days ago. I'm going to post via the web interface, for now.

Hi D community!

I'm here again, to describe what I've done during the eleventh week of Symmetry
Autumn of Code.

LLVM upstream follow up update

Three more patches in the D demangling patch train got merged!

I joined this week on the LLVM official team to help provide maintenance on the
code I introduced and planning to introduce as well as general changes made for
D in the official tree.

I have 2 more patches already accepted about the demangling but I didn't merge
them yet, as I'm having some problems on running the test suite locally.

Currently, LLVM already supports special D main, simple multiple identifiers
and anonymous symbols. Next step is to support basic and compound types,
although I think this needs to be split up, as discussed in some patches.

Implementation of basic types and decoupling Clang-specific code

I started this week implementing basic types on the D TypeSystem, although, in
the meanwhile, I found that some decoupling is needed, since the current LLDB
architecture for parsing debug info has some entanglement with clang-specific
structures such as the AST Context and other TypeSystem and AST related
structures. I though this was something already considered, but a lot of effort
on this was left behind when other languages stop being supported, like Go.

I made some patches to move that forward in the upstream:

Still about the decoupling, I found out that only DWARF Parser is reasonably
decoupled, but other debug info parsers like
PDB
are really entangled with the Clang TypeSystem. There is no generic interface
at the moment, and I plan to decouple that as well, although, it is not really
a priority for me, since my main development environment is Linux. That said,
I'm probably going to left Windows support as a second priority, for now.

I added those patches to the PR I
created last week and continued working on it.

What is next?

I haven't finished the type wrapper to represent a D type, due to those
decoupling issues. I will hopefully finish the implementation next week and try
to have some simple output on the LLDB side.

You can read this also on my blog,
here. Check out also my
solutions for Advent of Code, if you are also interested in :)

--
Sincerely,
Luís Ferreira @ lsferreira.net

December 04, 2021

On Saturday, 4 December 2021 at 15:39:07 UTC, Luís Ferreira wrote:

>

I'm not really sure what happened but replies from <lsferreira at riseup dot net> is apparently getting ignored by the mailing list, including this report :/ Can someone verify it? Anyway, for people that follow my blog, I posted this 2 days ago. I'm going to post via the web interface, for now.

*from lsferreira at riseup dot net