linux-kernel - [PATCH v2 00/12] Thrash up the parser/output interface

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Message-ID: <20250710233142.246524-1-corbet@lwn.net>
Date: Thu, 10 Jul 2025 17:31:30 -0600
From: Jonathan Corbet <corbet@....net>
To: linux-doc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
	Akira Yokosawa <akiyks@...il.com>,
	Jonathan Corbet <corbet@....net>
Subject: [PATCH v2 00/12] Thrash up the parser/output interface

The kerneldoc parsing phase gathers all of the information about the
declarations of interest, then passes it through to the output phase as a
dict that is an unstructured blob of information; this organization has its
origins in the Perl version of the program.  It results in an interface
that is difficult to reason about, dozen-parameter function calls, and
other ills.

Introduce a new class (KdocItem) to carry this information between the
parser and the output modules, and, step by step, modify the system to use
this class in a more structured way.  This could be taken further by
creating a subclass of KdocItem for each declaration type (function,
struct, ...), but that is probably more structure than we need.

The result is (I hope) clearer code, the removal of a bunch of boilerplate,
and no changes to the generated output.

Changes since v1:
- Coding-style tweaks requested by Mauro
- Drop the reworking of output-text accumulation for now
- Add a warning for prehistoric Python versions

Jonathan Corbet (12):
  docs: kdoc; Add a rudimentary class to represent output items
  docs: kdoc: simplify the output-item passing
  docs: kdoc: drop "sectionlist"
  docs: kdoc: Centralize handling of the item section list
  docs: kdoc: remove the "struct_actual" machinery
  docs: kdoc: use self.entry.parameterlist directly in check_sections()
  docs: kdoc: Coalesce parameter-list handling
  docs: kdoc: Regularize the use of the declaration name
  docs: kdoc: straighten up dump_declaration()
  docs: kdoc: directly access the always-there KdocItem fields
  docs: kdoc: clean up check_sections()
  docs: kdoc: emit a warning for ancient versions of Python

 scripts/lib/kdoc/kdoc_files.py  |   4 +-
 scripts/lib/kdoc/kdoc_item.py   |  41 ++++++++
 scripts/lib/kdoc/kdoc_output.py | 172 ++++++++++++--------------------
 scripts/lib/kdoc/kdoc_parser.py | 171 +++++++------------------------
 4 files changed, 144 insertions(+), 244 deletions(-)
 create mode 100644 scripts/lib/kdoc/kdoc_item.py

-- 
2.49.0