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Allow for strategies to be objects or callables. #74

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Allow for strategies to be objects or callables. #74

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11 changes: 10 additions & 1 deletion src/ClassDiscovery.php
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
use Http\Discovery\Exception\ClassInstantiationFailedException;
use Http\Discovery\Exception\DiscoveryFailedException;
use Http\Discovery\Exception\StrategyUnavailableException;
use Http\Discovery\Strategy\DiscoveryStrategy;

/**
* Registry that based find results on class existence.
Expand Down Expand Up @@ -51,7 +52,15 @@ protected static function findOneByType($type)
$exceptions = [];
foreach (self::$strategies as $strategy) {
try {
$candidates = call_user_func($strategy.'::getCandidates', $type);
if (is_callable($strategy)) {
$candidates = $strategy($type);
} elseif ($strategy instanceof DiscoveryStrategy) {
$candidates = $strategy->getCandidates($type);
} elseif (is_string($strategy)) {
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Shouldn't we check an instance of DiscoveryStrategy too?

$candidates = call_user_func($strategy.'::getCandidates', $type);
} else {
throw new \Exception("Stratiegy must be callable, an instance of DiscoveryStrategy or at least a FQCN to a instance of a DiscoveryStrategy");
}
} catch (StrategyUnavailableException $e) {
$exceptions[] = $e;
continue;
Expand Down