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author | Guido van Rossum <guido@python.org> | 2019-03-07 20:38:08 (GMT) |
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committer | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2019-03-07 20:38:08 (GMT) |
commit | 495da292255b92dd73758fdd0e4c7d27d82b1e57 (patch) | |
tree | 1378cf049d2d125593fa970ea1e9a9f77604fab1 /Python/Python-ast.c | |
parent | bf94cc7b496a379e1f604aa2e4080bb70ca4020e (diff) | |
download | cpython-495da292255b92dd73758fdd0e4c7d27d82b1e57.zip cpython-495da292255b92dd73758fdd0e4c7d27d82b1e57.tar.gz cpython-495da292255b92dd73758fdd0e4c7d27d82b1e57.tar.bz2 |
bpo-35975: Support parsing earlier minor versions of Python 3 (GH-12086)
This adds a `feature_version` flag to `ast.parse()` (documented) and `compile()` (hidden) that allow tweaking the parser to support older versions of the grammar. In particular if `feature_version` is 5 or 6, the hacks for the `async` and `await` keyword from PEP 492 are reinstated. (For 7 or higher, these are unconditionally treated as keywords, but they are still special tokens rather than `NAME` tokens that the parser driver recognizes.)
https://bugs.python.org/issue35975
Diffstat (limited to 'Python/Python-ast.c')
-rw-r--r-- | Python/Python-ast.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Python/Python-ast.c b/Python/Python-ast.c index 92ec157..0411f9f 100644 --- a/Python/Python-ast.c +++ b/Python/Python-ast.c @@ -8900,6 +8900,11 @@ PyObject* PyAST_mod2obj(mod_ty t) /* mode is 0 for "exec", 1 for "eval" and 2 for "single" input */ mod_ty PyAST_obj2mod(PyObject* ast, PyArena* arena, int mode) { + return PyAST_obj2mod_ex(ast, arena, mode, PY_MINOR_VERSION); +} + +mod_ty PyAST_obj2mod_ex(PyObject* ast, PyArena* arena, int mode, int feature_version) +{ mod_ty res; PyObject *req_type[3]; char *req_name[] = {"Module", "Expression", "Interactive"}; |