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psalm/src/Psalm/Internal/MethodIdentifier.php

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<?php
namespace Psalm\Internal;
/**
* @psalm-immutable
*/
class MethodIdentifier
{
public $fq_class_name;
public $method_name;
/**
* @param string $fq_class_name
* @param lowercase-string $method_name
*/
public function __construct(string $fq_class_name, string $method_name)
{
$this->fq_class_name = $fq_class_name;
$this->method_name = $method_name;
}
/**
* Takes any valid reference to a method id and converts
* it into a MethodIdentifier
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*
* @param string|MethodIdentifier $method_id
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*
* @psalm-pure
*/
public static function wrap($method_id): self
{
return \is_string($method_id) ? static::fromMethodIdReference($method_id) : $method_id;
}
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/**
* @psalm-pure
*/
public static function isValidMethodIdReference(string $method_id): bool
{
return \strpos($method_id, '::') !== false;
}
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/**
* @psalm-pure
*/
public static function fromMethodIdReference(string $method_id): self
{
if (!static::isValidMethodIdReference($method_id)) {
throw new \InvalidArgumentException('Invalid method id reference provided: ' . $method_id);
}
// remove trailing backslash if it exists
$method_id = \preg_replace('/^\\\\/', '', $method_id);
$method_id_parts = \explode('::', $method_id);
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return new self($method_id_parts[0], \strtolower($method_id_parts[1]));
}
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/** @return non-empty-string */
public function __toString()
{
return $this->fq_class_name . '::' . $this->method_name;
}
}