You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
1.9 KiB
76 lines
1.9 KiB
3 years ago
|
import inspect
|
||
|
|
import typing as t
|
||
|
|
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)
|
||
|
|
|
||
|
|
@wraps(normal_func)
|
||
|
|
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)]
|