New tree-sitter cli generated bindings and code around grammars and
parsers now support bulding a python wheel which supply much better
API and library for consumers in python bindings.

Currently I've added only python as a binding languages, even though
rust, swift, and go are also available. We should add them when we
see a request for them. Python will be needed for pkgcheck.

When we opt in into python bindings, we call the matching distutils
phase functions when `use python` is true.

Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>
---
eclass/tree-sitter-grammar.eclass | 85 ++++++++++++++++++++++++++++++-
1 file changed, 84 insertions(+), 1 deletion(-)

diff --git a/eclass/tree-sitter-grammar.eclass b/eclass/tree-sitter-grammar.eclass
index 13539daf7e6..b04d5ee1103 100644
--- a/eclass/tree-sitter-grammar.eclass
+++ b/eclass/tree-sitter-grammar.eclass
@@ -36,6 +36,43 @@ RESTRICT+=" !test? ( test )"
# Used to override upstream tag name if tagged differently, e.g. most releases
# are v${PV} but some are tagged as rust-${PV}.

+# @ECLASS_VARIABLE: TS_BINDINGS
+# @PRE_INHERIT
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Array of bindings language to build. Currently only "python" is supported.
+
+for _BINDING in "${TS_BINDINGS[@]}"; do
+ case ${_BINDING} in
+ python)
+ DISTUTILS_EXT=1
+ DISTUTILS_OPTIONAL=1
+ DISTUTILS_USE_PEP517=setuptools
+ PYTHON_COMPAT=( python3_{10..12} )
+ inherit distutils-r1
+
+ IUSE+=" python"
+ REQUIRED_USE+=" python? ( ${PYTHON_REQUIRED_USE} )"
+
+ DEPEND+=" python? (
+