venv added, updated

2024-09-13 09:46:28 +02:00
parent 577596d9f3
commit 82af8c809a
4812 changed files with 640223 additions and 2 deletions
@@ -0,0 +1,29 @@
+from .basic import default_comparer, default_error, noop
+from .concurrency import default_thread_factory, synchronized
+from .constants import DELTA_ZERO, UTC_ZERO
+from .exceptions import (
+    ArgumentOutOfRangeException,
+    DisposedException,
+    SequenceContainsNoElementsError,
+)
+from .priorityqueue import PriorityQueue
+from .utils import NotSet, add_ref, alias, infinite
+
+__all__ = [
+    "add_ref",
+    "alias",
+    "ArgumentOutOfRangeException",
+    "DisposedException",
+    "default_comparer",
+    "default_error",
+    "infinite",
+    "noop",
+    "NotSet",
+    "SequenceContainsNoElementsError",
+    "concurrency",
+    "DELTA_ZERO",
+    "UTC_ZERO",
+    "synchronized",
+    "default_thread_factory",
+    "PriorityQueue",
+]
@@ -0,0 +1,36 @@
+from datetime import datetime
+from typing import Any, NoReturn, TypeVar, Union
+
+_T = TypeVar("_T")
+
+
+def noop(*args: Any, **kw: Any) -> None:
+    """No operation. Returns nothing"""
+
+
+def identity(x: _T) -> _T:
+    """Returns argument x"""
+    return x
+
+
+def default_now() -> datetime:
+    return datetime.utcnow()
+
+
+def default_comparer(x: _T, y: _T) -> bool:
+    return x == y
+
+
+def default_sub_comparer(x: Any, y: Any) -> Any:
+    return x - y
+
+
+def default_key_serializer(x: Any) -> str:
+    return str(x)
+
+
+def default_error(err: Union[Exception, str]) -> NoReturn:
+    if isinstance(err, BaseException):
+        raise err
+
+    raise Exception(err)
@@ -0,0 +1,26 @@
+from threading import RLock, Thread
+from typing import Any, Callable, TypeVar
+
+from typing_extensions import ParamSpec
+
+from reactivex.typing import StartableTarget
+
+_T = TypeVar("_T")
+_P = ParamSpec("_P")
+
+
+def default_thread_factory(target: StartableTarget) -> Thread:
+    return Thread(target=target, daemon=True)
+
+
+def synchronized(lock: RLock) -> Callable[[Callable[_P, _T]], Callable[_P, _T]]:
+    """A decorator for synchronizing access to a given function."""
+
+    def wrapper(fn: Callable[_P, _T]) -> Callable[_P, _T]:
+        def inner(*args: _P.args, **kw: _P.kwargs) -> Any:
+            with lock:
+                return fn(*args, **kw)
+
+        return inner
+
+    return wrapper
@@ -0,0 +1,4 @@
+from datetime import datetime, timedelta
+
+DELTA_ZERO = timedelta(0)
+UTC_ZERO = datetime.utcfromtimestamp(0)
@@ -0,0 +1,36 @@
+# Rx Exceptions
+
+
+from typing import Optional
+
+
+class SequenceContainsNoElementsError(Exception):
+    def __init__(self, msg: Optional[str] = None):
+        super().__init__(msg or "Sequence contains no elements")
+
+
+class ArgumentOutOfRangeException(ValueError):
+    def __init__(self, msg: Optional[str] = None):
+        super(ArgumentOutOfRangeException, self).__init__(
+            msg or "Argument out of range"
+        )
+
+
+class DisposedException(Exception):
+    def __init__(self, msg: Optional[str] = None):
+        super().__init__(msg or "Object has been disposed")
+
+
+class ReEntracyException(Exception):
+    def __init__(self, msg: Optional[str] = None):
+        super().__init__(msg or "Re-entrancy detected")
+
+
+class CompletedException(Exception):
+    def __init__(self, msg: Optional[str] = None):
+        super().__init__(msg or "Observer completed")
+
+
+class WouldBlockException(Exception):
+    def __init__(self, msg: Optional[str] = None):
+        super().__init__(msg or "Would block")
@@ -0,0 +1,54 @@
+import heapq
+from sys import maxsize
+from typing import Generic, List, Tuple, TypeVar
+
+_T1 = TypeVar("_T1")
+
+
+class PriorityQueue(Generic[_T1]):
+    """Priority queue for scheduling. Note that methods aren't thread-safe."""
+
+    MIN_COUNT = ~maxsize
+
+    def __init__(self) -> None:
+        self.items: List[Tuple[_T1, int]] = []
+        self.count = PriorityQueue.MIN_COUNT  # Monotonic increasing for sort stability
+
+    def __len__(self) -> int:
+        """Returns length of queue"""
+
+        return len(self.items)
+
+    def peek(self) -> _T1:
+        """Returns first item in queue without removing it"""
+        return self.items[0][0]
+
+    def dequeue(self) -> _T1:
+        """Returns and removes item with lowest priority from queue"""
+
+        item: _T1 = heapq.heappop(self.items)[0]
+        if not self.items:
+            self.count = PriorityQueue.MIN_COUNT
+        return item
+
+    def enqueue(self, item: _T1) -> None:
+        """Adds item to queue"""
+
+        heapq.heappush(self.items, (item, self.count))
+        self.count += 1
+
+    def remove(self, item: _T1) -> bool:
+        """Remove given item from queue"""
+
+        for index, _item in enumerate(self.items):
+            if _item[0] == item:
+                self.items.pop(index)
+                heapq.heapify(self.items)
+                return True
+
+        return False
+
+    def clear(self) -> None:
+        """Remove all items from the queue."""
+        self.items = []
+        self.count = PriorityQueue.MIN_COUNT
@@ -0,0 +1,61 @@
+from functools import update_wrapper
+from types import FunctionType
+from typing import TYPE_CHECKING, Any, Callable, Iterable, Optional, TypeVar, cast
+
+from typing_extensions import ParamSpec
+
+from reactivex import abc
+from reactivex.disposable import CompositeDisposable
+from reactivex.disposable.refcountdisposable import RefCountDisposable
+
+if TYPE_CHECKING:
+    from reactivex import Observable
+
+_T = TypeVar("_T")
+_P = ParamSpec("_P")
+
+
+def add_ref(xs: "Observable[_T]", r: RefCountDisposable) -> "Observable[_T]":
+    from reactivex import Observable
+
+    def subscribe(
+        observer: abc.ObserverBase[Any], scheduler: Optional[abc.SchedulerBase] = None
+    ) -> abc.DisposableBase:
+        return CompositeDisposable(r.disposable, xs.subscribe(observer))
+
+    return Observable(subscribe)
+
+
+def infinite() -> Iterable[int]:
+    n = 0
+    while True:
+        yield n
+        n += 1
+
+
+def alias(name: str, doc: str, fun: Callable[_P, _T]) -> Callable[_P, _T]:
+    # Adapted from
+    # https://stackoverflow.com/questions/13503079/how-to-create-a-copy-of-a-python-function#
+    # See also help(type(lambda: 0))
+    _fun = cast(FunctionType, fun)
+    args = (_fun.__code__, _fun.__globals__)
+    kwargs = {"name": name, "argdefs": _fun.__defaults__, "closure": _fun.__closure__}
+    alias_ = FunctionType(*args, **kwargs)  # type: ignore
+    alias_ = update_wrapper(alias_, _fun)
+    alias_.__kwdefaults__ = _fun.__kwdefaults__
+    alias_.__doc__ = doc
+    alias_.__annotations__ = _fun.__annotations__
+    return cast(Callable[_P, _T], alias_)
+
+
+class NotSet:
+    """Sentinel value."""
+
+    def __eq__(self, other: Any) -> bool:
+        return self is other
+
+    def __repr__(self) -> str:
+        return "NotSet"
+
+
+__all__ = ["add_ref", "infinite", "alias", "NotSet"]