extmod/uasyncio: Add StreamReader/StreamWriter as aliases of Stream cls.

dpgeorge · dpgeorge · commit f97b5395ed4b · 2020-04-02T00:51:00.000+11:00
To be compatible with CPython. Fixes issue adafruit#5847.
diff --git a/docs/library/uasyncio.rst b/docs/library/uasyncio.rst
@@ -177,7 +177,8 @@ TCP stream connections
 .. class:: Stream()
     
     This represents a TCP stream connection.  To minimise code this class implements
-    both a reader and a writer.
+    both a reader and a writer, and both ``StreamReader`` and ``StreamWriter`` alias to
+    this class.
 
 .. method:: Stream.get_extra_info(v)
 
diff --git a/extmod/uasyncio/__init__.py b/extmod/uasyncio/__init__.py
@@ -12,6 +12,8 @@
     "Lock": "lock",
     "open_connection": "stream",
     "start_server": "stream",
+    "StreamReader": "stream",
+    "StreamWriter": "stream",
 }
 
 # Lazy loader, effectively does:
diff --git a/extmod/uasyncio/stream.py b/extmod/uasyncio/stream.py
@@ -53,6 +53,11 @@ async def drain(self):
         self.out_buf = b""
 
 
+# Stream can be used for both reading and writing to save code size
+StreamReader = Stream
+StreamWriter = Stream
+
+
 # Create a TCP stream connection to a remote host
 async def open_connection(host, port):
     from uerrno import EINPROGRESS

Original file line number	Diff line number	Diff line change
`@@ -12,6 +12,8 @@`
`12`	`12`	`"Lock": "lock",`
`13`	`13`	`"open_connection": "stream",`
`14`	`14`	`"start_server": "stream",`
	`15`	`+ "StreamReader": "stream",`
	`16`	`+ "StreamWriter": "stream",`
`15`	`17`	`}`
`16`	`18`
`17`	`19`	`# Lazy loader, effectively does:`