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<?php
namespace MediaWiki\Parser;
/**
* Read-only interface for metadata about a ParserCache entry.
* @since 1.36
*/
interface ParserCacheMetadata {
/**
* Returns the timestamp when the output was cached
* or -1 for uncacheable for legacy reasons.
* @todo remove legacy -1
*
* @return string|int TS_MW timestamp
*/
public function getCacheTime();
/**
* @return int|null Revision id, if any was set
*/
public function getCacheRevisionId(): ?int;
/**
* Returns the number of seconds after which this object should expire.
* This method is used by ParserCache to determine how long the ParserOutput can be cached.
* The timestamp of expiry can be calculated by adding getCacheExpiry() to getCacheTime().
* The value returned by getCacheExpiry is smaller or equal to the smallest number
* that was provided to a call of ParserOutput::updateCacheExpiry(),
* and smaller or equal to the value of $wgParserCacheExpireTime.
*
* @return int
*/
public function getCacheExpiry(): int;
/**
* Returns the options from its ParserOptions which have been taken
* into account to produce the output.
*
* @return string[]
*/
public function getUsedOptions(): array;
}
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