[PATCH] D142364: [LLVM][TableGen] Notebook describing how to write a Python backend

[David Spickett via Phabricator via llvm-commits]

DavidSpickett created this revision.
Herald added a project: All.
DavidSpickett requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

This tutorial uses the dump json option to write a backend for
SQL queries.

It is based on the work of Min-Yih Hsu:

- https://github.com/mshockwave/SQLGen
- https://www.youtube.com/watch?v=UP-LBRbvI_U

I hope that having the same concepts in 3 forms will allow people
to choose the style that fits them.

The main drawback here being that it's in Python. C++ can be used
in a notebook (https://github.com/jupyter-xeus/xeus-cling) but I
decided against it for a few reasons:

- Python is the default for Jupyter, no extra installs needed.
- Having the code in a second language may help people who know one or the other.
- There is no upstream example of a JSON powered backend. (and although we would be unlikely to accept one upstream, I think it's a great option for quick development before translating into C++)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142364

Files:
  llvm/utils/TableGen/jupyter/sql_query_backend.ipynb
  llvm/utils/TableGen/jupyter/sql_query_backend.md

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D142364.491363.patch
Type: text/x-patch
Size: 58169 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230123/543c7c73/attachment.bin>