summaryrefslogtreecommitdiff
path: root/bin/wiki/vendor/guzzlehttp/psr7/src/FnStream.php
diff options
context:
space:
mode:
Diffstat (limited to 'bin/wiki/vendor/guzzlehttp/psr7/src/FnStream.php')
-rw-r--r--bin/wiki/vendor/guzzlehttp/psr7/src/FnStream.php158
1 files changed, 158 insertions, 0 deletions
diff --git a/bin/wiki/vendor/guzzlehttp/psr7/src/FnStream.php b/bin/wiki/vendor/guzzlehttp/psr7/src/FnStream.php
new file mode 100644
index 00000000..73daea6f
--- /dev/null
+++ b/bin/wiki/vendor/guzzlehttp/psr7/src/FnStream.php
@@ -0,0 +1,158 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Compose stream implementations based on a hash of functions.
+ *
+ * Allows for easy testing and extension of a provided stream without needing
+ * to create a concrete class for a simple extension point.
+ */
+class FnStream implements StreamInterface
+{
+ /** @var array */
+ private $methods;
+
+ /** @var array Methods that must be implemented in the given array */
+ private static $slots = ['__toString', 'close', 'detach', 'rewind',
+ 'getSize', 'tell', 'eof', 'isSeekable', 'seek', 'isWritable', 'write',
+ 'isReadable', 'read', 'getContents', 'getMetadata'];
+
+ /**
+ * @param array $methods Hash of method name to a callable.
+ */
+ public function __construct(array $methods)
+ {
+ $this->methods = $methods;
+
+ // Create the functions on the class
+ foreach ($methods as $name => $fn) {
+ $this->{'_fn_' . $name} = $fn;
+ }
+ }
+
+ /**
+ * Lazily determine which methods are not implemented.
+ * @throws \BadMethodCallException
+ */
+ public function __get($name)
+ {
+ throw new \BadMethodCallException(str_replace('_fn_', '', $name)
+ . '() is not implemented in the FnStream');
+ }
+
+ /**
+ * The close method is called on the underlying stream only if possible.
+ */
+ public function __destruct()
+ {
+ if (isset($this->_fn_close)) {
+ call_user_func($this->_fn_close);
+ }
+ }
+
+ /**
+ * An unserialize would allow the __destruct to run when the unserialized value goes out of scope.
+ * @throws \LogicException
+ */
+ public function __wakeup()
+ {
+ throw new \LogicException('FnStream should never be unserialized');
+ }
+
+ /**
+ * Adds custom functionality to an underlying stream by intercepting
+ * specific method calls.
+ *
+ * @param StreamInterface $stream Stream to decorate
+ * @param array $methods Hash of method name to a closure
+ *
+ * @return FnStream
+ */
+ public static function decorate(StreamInterface $stream, array $methods)
+ {
+ // If any of the required methods were not provided, then simply
+ // proxy to the decorated stream.
+ foreach (array_diff(self::$slots, array_keys($methods)) as $diff) {
+ $methods[$diff] = [$stream, $diff];
+ }
+
+ return new self($methods);
+ }
+
+ public function __toString()
+ {
+ return call_user_func($this->_fn___toString);
+ }
+
+ public function close()
+ {
+ return call_user_func($this->_fn_close);
+ }
+
+ public function detach()
+ {
+ return call_user_func($this->_fn_detach);
+ }
+
+ public function getSize()
+ {
+ return call_user_func($this->_fn_getSize);
+ }
+
+ public function tell()
+ {
+ return call_user_func($this->_fn_tell);
+ }
+
+ public function eof()
+ {
+ return call_user_func($this->_fn_eof);
+ }
+
+ public function isSeekable()
+ {
+ return call_user_func($this->_fn_isSeekable);
+ }
+
+ public function rewind()
+ {
+ call_user_func($this->_fn_rewind);
+ }
+
+ public function seek($offset, $whence = SEEK_SET)
+ {
+ call_user_func($this->_fn_seek, $offset, $whence);
+ }
+
+ public function isWritable()
+ {
+ return call_user_func($this->_fn_isWritable);
+ }
+
+ public function write($string)
+ {
+ return call_user_func($this->_fn_write, $string);
+ }
+
+ public function isReadable()
+ {
+ return call_user_func($this->_fn_isReadable);
+ }
+
+ public function read($length)
+ {
+ return call_user_func($this->_fn_read, $length);
+ }
+
+ public function getContents()
+ {
+ return call_user_func($this->_fn_getContents);
+ }
+
+ public function getMetadata($key = null)
+ {
+ return call_user_func($this->_fn_getMetadata, $key);
+ }
+}