type fixes

src/CallbackWrapper.php

@@ -25,27 +25,27 @@ namespace Icewind\Streams;
  */
 class CallbackWrapper extends Wrapper {
 	/**
-	 * @var callable
+	 * @var callable|null
 	 */
 	protected $readCallback;
 
 	/**
-	 * @var callable
+	 * @var callable|null
 	 */
 	protected $writeCallback;
 
 	/**
-	 * @var callable
+	 * @var callable|null
 	 */
 	protected $closeCallback;
 
 	/**
-	 * @var callable
+	 * @var callable|null
 	 */
 	protected $readDirCallBack;
 
 	/**
-	 * @var callable
+	 * @var callable|null
 	 */
 	protected $preCloseCallback;
 

src/File.php

@@ -15,7 +15,7 @@ interface File {
 	 * @param string $path
 	 * @param string $mode
 	 * @param int $options
-	 * @param string &$opened_path
+	 * @param string $opened_path
 	 * @return bool
 	 */
 	public function stream_open($path, $mode, $options, &$opened_path);

src/HashWrapper.php

@@ -26,12 +26,12 @@ namespace Icewind\Streams;
 abstract class HashWrapper extends Wrapper {
 
 	/**
-	 * @var callable
+	 * @var callable|null
 	 */
 	private $callback;
 
 	/**
-	 * @var resource
+	 * @var resource|\HashContext
 	 */
 	private $hashContext;
 

src/Url.php

@@ -22,7 +22,7 @@ interface Url {
 	 * @param string $path
 	 * @param string $mode
 	 * @param int $options
-	 * @param string &$opened_path
+	 * @param string $opened_path
 	 * @return bool
 	 */
 	public function stream_open($path, $mode, $options, &$opened_path);
@@ -50,7 +50,7 @@ interface Url {
 	public function rmdir($path, $options);
 
 	/**
-	 * @param string
+	 * @param string $path
 	 * @return bool
 	 */
 	public function unlink($path);

src/Wrapper.php

@@ -62,14 +62,13 @@ abstract class Wrapper extends WrapperHandler implements File, Directory {
 	public function stream_set_option($option, $arg1, $arg2) {
 		switch ($option) {
 			case STREAM_OPTION_BLOCKING:
-				stream_set_blocking($this->source, $arg1);
-				break;
+				return stream_set_blocking($this->source, (bool)$arg1);
 			case STREAM_OPTION_READ_TIMEOUT:
-				stream_set_timeout($this->source, $arg1, $arg2);
-				break;
+				return stream_set_timeout($this->source, $arg1, $arg2);
 			case STREAM_OPTION_WRITE_BUFFER:
-				stream_set_write_buffer($this->source, $arg1);
+				return stream_set_write_buffer($this->source, $arg1) === 0;
 		}
+		return false;
 	}
 
 	public function stream_truncate($size) {

src/WrapperHandler.php

@@ -22,6 +22,9 @@
 namespace Icewind\Streams;
 
 class WrapperHandler {
+	/** @var resource $context */
+	protected $context;
+
 	const NO_SOURCE_DIR = 1;
 
 	/**