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typing: use appropriate protocols for stream sources/destinations #281

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typing: use appropriate protocols for stream sources/destinations #281

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26 changes: 15 additions & 11 deletions zstandard/__init__.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,6 @@

import os
from typing import (
IO,
BinaryIO,
ByteString,
Generator,
Expand All @@ -18,6 +17,11 @@ from typing import (
Union,
)

from _typeshed import (
SupportsRead,
SupportsWrite,
)

FLUSH_BLOCK: int
FLUSH_FRAME: int

Expand Down Expand Up @@ -278,23 +282,23 @@ class ZstdCompressor(object):
) -> ZstdCompressionChunker: ...
def copy_stream(
self,
ifh: IO[bytes],
ofh: IO[bytes],
ifh: SupportsRead[bytes],
ofh: SupportsWrite[bytes],
size: int = ...,
read_size: int = ...,
write_size: int = ...,
) -> Tuple[int, int]: ...
def stream_reader(
self,
source: Union[IO[bytes], ByteString],
source: Union[SupportsRead[bytes], ByteString],
size: int = ...,
read_size: int = ...,
*,
closefd: bool = ...,
) -> ZstdCompressionReader: ...
def stream_writer(
self,
writer: IO[bytes],
writer: SupportsWrite[bytes],
size: int = ...,
write_size: int = ...,
write_return_read: bool = ...,
Expand All @@ -303,7 +307,7 @@ class ZstdCompressor(object):
) -> ZstdCompressionWriter: ...
def read_to_iter(
self,
reader: Union[IO[bytes], ByteString],
reader: Union[SupportsRead[bytes], ByteString],
size: int = ...,
read_size: int = ...,
write_size: int = ...,
Expand Down Expand Up @@ -396,7 +400,7 @@ class ZstdDecompressor(object):
) -> bytes: ...
def stream_reader(
self,
source: Union[IO[bytes], ByteString],
source: Union[SupportsRead[bytes], ByteString],
read_size: int = ...,
read_across_frames: bool = ...,
*,
Expand All @@ -407,23 +411,23 @@ class ZstdDecompressor(object):
) -> ZstdDecompressionObj: ...
def read_to_iter(
self,
reader: Union[IO[bytes], ByteString],
reader: Union[SupportsRead[bytes], ByteString],
read_size: int = ...,
write_size: int = ...,
skip_bytes: int = ...,
) -> Generator[bytes, None, None]: ...
def stream_writer(
self,
writer: IO[bytes],
writer: SupportsWrite[bytes],
write_size: int = ...,
write_return_read: bool = ...,
*,
closefd: bool = ...,
) -> ZstdDecompressionWriter: ...
def copy_stream(
self,
ifh: IO[bytes],
ofh: IO[bytes],
ifh: SupportsRead[bytes],
ofh: SupportsWrite[bytes],
read_size: int = ...,
write_size: int = ...,
) -> Tuple[int, int]: ...
Expand Down