Broaden receive data buffer types

h11/_connection.py

@@ -361,7 +361,7 @@ def trailing_data(self) -> Tuple[bytes, bool]:
         """
         return (bytes(self._receive_buffer), self._receive_buffer_closed)
 
-    def receive_data(self, data: bytes) -> None:
+    def receive_data(self, data: Union[bytes, bytearray, memoryview]) -> None:
         """Add data to our internal receive buffer.
 
         This does not actually do any processing on the data, just stores

h11/_receivebuffer.py

@@ -50,7 +50,9 @@ def __init__(self) -> None:
         self._next_line_search = 0
         self._multiple_lines_search = 0
 
-    def __iadd__(self, byteslike: Union[bytes, bytearray]) -> "ReceiveBuffer":
+    def __iadd__(
+        self, byteslike: Union[bytes, bytearray, memoryview]
+    ) -> "ReceiveBuffer":
         self._data += byteslike
         return self
 

h11/tests/test_connection.py

@@ -238,6 +238,22 @@ def test_chunk_boundaries() -> None:
     assert conn.next_event() == EndOfMessage()
 
 
+@pytest.mark.parametrize("data_wrapper", [bytearray, memoryview])
+def test_receive_data_accepts_byteslike_objects(data_wrapper: Any) -> None:
+    conn = Connection(our_role=SERVER)
+
+    conn.receive_data(
+        data_wrapper(b"GET / HTTP/1.1\r\nHost: example.com\r\n\r\n")
+    )
+
+    assert conn.next_event() == Request(
+        method="GET",
+        target="/",
+        headers=[("Host", "example.com")],
+    )
+    assert conn.next_event() == EndOfMessage()
+
+
 def test_client_talking_to_http10_server() -> None:
     c = Connection(CLIENT)
     c.send(Request(method="GET", target="/", headers=[("Host", "example.com")]))

newsfragments/186.feature.rst

@@ -0,0 +1,2 @@
+Allow ``Connection.receive_data()`` to accept ``bytearray`` and
+``memoryview`` inputs in its public type hints.