diff options
author | nkozlovskiy <nmk@ydb.tech> | 2023-09-29 12:24:06 +0300 |
---|---|---|
committer | nkozlovskiy <nmk@ydb.tech> | 2023-09-29 12:41:34 +0300 |
commit | e0e3e1717e3d33762ce61950504f9637a6e669ed (patch) | |
tree | bca3ff6939b10ed60c3d5c12439963a1146b9711 /contrib/python/Jinja2/py3/jinja2/async_utils.py | |
parent | 38f2c5852db84c7b4d83adfcb009eb61541d1ccd (diff) | |
download | ydb-e0e3e1717e3d33762ce61950504f9637a6e669ed.tar.gz |
add ydb deps
Diffstat (limited to 'contrib/python/Jinja2/py3/jinja2/async_utils.py')
-rw-r--r-- | contrib/python/Jinja2/py3/jinja2/async_utils.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/contrib/python/Jinja2/py3/jinja2/async_utils.py b/contrib/python/Jinja2/py3/jinja2/async_utils.py new file mode 100644 index 0000000000..1a4f3892ce --- /dev/null +++ b/contrib/python/Jinja2/py3/jinja2/async_utils.py @@ -0,0 +1,84 @@ +import inspect +import typing as t +from functools import WRAPPER_ASSIGNMENTS +from functools import wraps + +from .utils import _PassArg +from .utils import pass_eval_context + +V = t.TypeVar("V") + + +def async_variant(normal_func): # type: ignore + def decorator(async_func): # type: ignore + pass_arg = _PassArg.from_obj(normal_func) + need_eval_context = pass_arg is None + + if pass_arg is _PassArg.environment: + + def is_async(args: t.Any) -> bool: + return t.cast(bool, args[0].is_async) + + else: + + def is_async(args: t.Any) -> bool: + return t.cast(bool, args[0].environment.is_async) + + # Take the doc and annotations from the sync function, but the + # name from the async function. Pallets-Sphinx-Themes + # build_function_directive expects __wrapped__ to point to the + # sync function. + async_func_attrs = ("__module__", "__name__", "__qualname__") + normal_func_attrs = tuple(set(WRAPPER_ASSIGNMENTS).difference(async_func_attrs)) + + @wraps(normal_func, assigned=normal_func_attrs) + @wraps(async_func, assigned=async_func_attrs, updated=()) + def wrapper(*args, **kwargs): # type: ignore + b = is_async(args) + + if need_eval_context: + args = args[1:] + + if b: + return async_func(*args, **kwargs) + + return normal_func(*args, **kwargs) + + if need_eval_context: + wrapper = pass_eval_context(wrapper) + + wrapper.jinja_async_variant = True + return wrapper + + return decorator + + +_common_primitives = {int, float, bool, str, list, dict, tuple, type(None)} + + +async def auto_await(value: t.Union[t.Awaitable["V"], "V"]) -> "V": + # Avoid a costly call to isawaitable + if type(value) in _common_primitives: + return t.cast("V", value) + + if inspect.isawaitable(value): + return await t.cast("t.Awaitable[V]", value) + + return t.cast("V", value) + + +async def auto_aiter( + iterable: "t.Union[t.AsyncIterable[V], t.Iterable[V]]", +) -> "t.AsyncIterator[V]": + if hasattr(iterable, "__aiter__"): + async for item in t.cast("t.AsyncIterable[V]", iterable): + yield item + else: + for item in t.cast("t.Iterable[V]", iterable): + yield item + + +async def auto_to_list( + value: "t.Union[t.AsyncIterable[V], t.Iterable[V]]", +) -> t.List["V"]: + return [x async for x in auto_aiter(value)] |