Change Directory

librespot/standard/OutputStream.py

@@ -0,0 +1,61 @@
+from librespot.standard.Closeable import Closeable
+from librespot.standard.Flushable import Flushable
+
+
+class OutputStream(Closeable, Flushable):
+    def null_output_stream(self):
+        class Annonymous(OutputStream):
+            closed: bool
+
+            def ensure_open(self) -> None:
+                if self.closed:
+                    raise IOError("Stream closed")
+
+            def internal_write(self, byte: int):
+                self.ensure_open()
+
+            def write(self,
+                      byte: int = None,
+                      buffer: bytearray = None,
+                      offset: int = None,
+                      length: int = None):
+                if byte is not None and buffer is None and offset is None and length is None:
+                    self.internal_write(byte)
+                elif not (byte is None and buffer is not None
+                          and offset is not None and length is not None):
+                    raise TypeError()
+                if len(bytearray) < (offset + length):
+                    raise IndexError()
+                self.ensure_open()
+
+            def close(self) -> None:
+                self.closed = True
+
+    def internal_write(self, byte: int):
+        raise NotImplementedError()
+
+    def write(self,
+              byte: int = None,
+              buffer: bytearray = None,
+              offset: int = None,
+              length: int = None):
+        if byte is not None and buffer is None and offset is None and length is None:
+            self.internal_write(byte)
+        elif byte is None and buffer is not None and offset is None and length is None:
+            offset = 0
+            length = len(buffer)
+        elif not (byte is None and buffer is not None and offset is not None
+                  and length is not None):
+            raise TypeError()
+
+        if len(bytearray) < (offset + length):
+            raise IndexError()
+
+        for i in range(length):
+            self.write(buffer[offset + i])
+
+    def flush(self) -> None:
+        pass
+
+    def close(self) -> None:
+        pass