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<?php |
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/* |
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* Go! AOP framework |
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* |
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* @copyright Copyright 2012, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\Instrument\Transformer; |
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use ArrayObject; |
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use Go\Instrument\PathResolver; |
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use InvalidArgumentException; |
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/** |
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* Stream metadata object |
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* |
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* @property bool timed_out TRUE if the stream timed out while waiting for data on the last call to fread() or fgets(). |
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* @property bool blocked TRUE if the stream is in blocking IO mode |
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* @property bool eof TRUE if the stream has reached end-of-file. |
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* @property int unread_bytes the number of bytes currently contained in the PHP's own internal buffer. |
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* @property string stream_type a label describing the underlying implementation of the stream. |
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* @property string wrapper_type a label describing the protocol wrapper implementation layered over the stream. |
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* @property mixed wrapper_data wrapper specific data attached to this stream. |
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* @property array filters array containing the names of any filters that have been stacked onto this stream. |
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* @property string mode the type of access required for this stream |
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* @property bool seekable whether the current stream can be seeked. |
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* @property string uri the URI/filename associated with this stream. |
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* @property string source of the stream. |
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*/ |
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class StreamMetaData extends ArrayObject |
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{ |
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/** |
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* Creates metadata object from stream |
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* |
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* @param resource $stream Instance of stream |
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* @param string $source Source code or null |
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* @throws \InvalidArgumentException for invalid stream |
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*/ |
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public function __construct($stream, $source = null) |
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{ |
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if (!is_resource($stream)) { |
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throw new InvalidArgumentException("Stream should be valid resource"); |
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} |
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$metadata = stream_get_meta_data($stream); |
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if ($source) { |
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$metadata['source'] = $source; |
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} |
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if (preg_match('/resource=(.+)$/', $metadata['uri'], $matches)) { |
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$metadata['uri'] = PathResolver::realpath($matches[1]); |
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} |
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parent::__construct($metadata, ArrayObject::ARRAY_AS_PROPS); |
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} |
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} |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: