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<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare (strict_types=1);
namespace RectorPrefix202410\Nette\Utils;
use RectorPrefix202410\Nette;
/**
* PHP reflection helpers.
*/
final class Reflection
{
use Nette\StaticClass;
/** @deprecated use Nette\Utils\Validator::isBuiltinType() */
public static function isBuiltinType(string $type) : bool
{
return Validators::isBuiltinType($type);
}
/** @deprecated use Nette\Utils\Validator::isClassKeyword() */
public static function isClassKeyword(string $name) : bool
{
return Validators::isClassKeyword($name);
}
/** @deprecated use native ReflectionParameter::getDefaultValue()
* @return mixed */
public static function getParameterDefaultValue(\ReflectionParameter $param)
{
if ($param->isDefaultValueConstant()) {
$const = $orig = $param->getDefaultValueConstantName();
$pair = \explode('::', $const);
if (isset($pair[1])) {
$pair[0] = Type::resolve($pair[0], $param);
try {
$rcc = new \ReflectionClassConstant($pair[0], $pair[1]);
} catch (\ReflectionException $e) {
$name = self::toString($param);
throw new \ReflectionException("Unable to resolve constant {$orig} used as default value of {$name}.", 0, $e);
}
return $rcc->getValue();
} elseif (!\defined($const)) {
$const = \substr((string) \strrchr($const, '\\'), 1);
if (!\defined($const)) {
$name = self::toString($param);
throw new \ReflectionException("Unable to resolve constant {$orig} used as default value of {$name}.");
}
}
return \constant($const);
}
return $param->getDefaultValue();
}
/**
* Returns a reflection of a class or trait that contains a declaration of given property. Property can also be declared in the trait.
*/
public static function getPropertyDeclaringClass(\ReflectionProperty $prop) : \ReflectionClass
{
foreach ($prop->getDeclaringClass()->getTraits() as $trait) {
if ($trait->hasProperty($prop->name) && $trait->getProperty($prop->name)->getDocComment() === $prop->getDocComment()) {
return self::getPropertyDeclaringClass($trait->getProperty($prop->name));
}
}
return $prop->getDeclaringClass();
}
/**
* Returns a reflection of a method that contains a declaration of $method.
* Usually, each method is its own declaration, but the body of the method can also be in the trait and under a different name.
*/
public static function getMethodDeclaringMethod(\ReflectionMethod $method) : \ReflectionMethod
{
// file & line guessing as workaround for insufficient PHP reflection
$decl = $method->getDeclaringClass();
if ($decl->getFileName() === $method->getFileName() && $decl->getStartLine() <= $method->getStartLine() && $decl->getEndLine() >= $method->getEndLine()) {
return $method;
}
$hash = [$method->getFileName(), $method->getStartLine(), $method->getEndLine()];
if (($alias = $decl->getTraitAliases()[$method->name] ?? null) && ($m = new \ReflectionMethod(...\explode('::', $alias, 2))) && $hash === [$m->getFileName(), $m->getStartLine(), $m->getEndLine()]) {
return self::getMethodDeclaringMethod($m);
}
foreach ($decl->getTraits() as $trait) {
if ($trait->hasMethod($method->name) && ($m = $trait->getMethod($method->name)) && $hash === [$m->getFileName(), $m->getStartLine(), $m->getEndLine()]) {
return self::getMethodDeclaringMethod($m);
}
}
return $method;
}
/**
* Finds out if reflection has access to PHPdoc comments. Comments may not be available due to the opcode cache.
*/
public static function areCommentsAvailable() : bool
{
static $res;
return $res ?? ($res = (bool) (new \ReflectionMethod(self::class, __FUNCTION__))->getDocComment());
}
public static function toString(\Reflector $ref) : string
{
if ($ref instanceof \ReflectionClass) {
return $ref->name;
} elseif ($ref instanceof \ReflectionMethod) {
return $ref->getDeclaringClass()->name . '::' . $ref->name . '()';
} elseif ($ref instanceof \ReflectionFunction) {
return \PHP_VERSION_ID >= 80200 && $ref->isAnonymous() ? '{closure}()' : $ref->name . '()';
} elseif ($ref instanceof \ReflectionProperty) {
return self::getPropertyDeclaringClass($ref)->name . '::$' . $ref->name;
} elseif ($ref instanceof \ReflectionParameter) {
return '$' . $ref->name . ' in ' . self::toString($ref->getDeclaringFunction());
} else {
throw new Nette\InvalidArgumentException();
}
}
/**
* Expands the name of the class to full name in the given context of given class.
* Thus, it returns how the PHP parser would understand $name if it were written in the body of the class $context.
* @throws Nette\InvalidArgumentException
*/
public static function expandClassName(string $name, \ReflectionClass $context) : string
{
$lower = \strtolower($name);
if (empty($name)) {
throw new Nette\InvalidArgumentException('Class name must not be empty.');
} elseif (Validators::isBuiltinType($lower)) {
return $lower;
} elseif ($lower === 'self' || $lower === 'static') {
return $context->name;
} elseif ($lower === 'parent') {
return $context->getParentClass() ? $context->getParentClass()->name : 'parent';
} elseif ($name[0] === '\\') {
// fully qualified name
return \ltrim($name, '\\');
}
$uses = self::getUseStatements($context);
$parts = \explode('\\', $name, 2);
if (isset($uses[$parts[0]])) {
$parts[0] = $uses[$parts[0]];
return \implode('\\', $parts);
} elseif ($context->inNamespace()) {
return $context->getNamespaceName() . '\\' . $name;
} else {
return $name;
}
}
/** @return array<string, class-string> of [alias => class] */
public static function getUseStatements(\ReflectionClass $class) : array
{
if ($class->isAnonymous()) {
throw new Nette\NotImplementedException('Anonymous classes are not supported.');
}
static $cache = [];
if (!isset($cache[$name = $class->name])) {
if ($class->isInternal()) {
$cache[$name] = [];
} else {
$code = \file_get_contents($class->getFileName());
$cache = self::parseUseStatements($code, $name) + $cache;
}
}
return $cache[$name];
}
/**
* Parses PHP code to [class => [alias => class, ...]]
*/
private static function parseUseStatements(string $code, ?string $forClass = null) : array
{
try {
$tokens = \token_get_all($code, \TOKEN_PARSE);
} catch (\ParseError $e) {
\trigger_error($e->getMessage(), \E_USER_NOTICE);
$tokens = [];
}
$namespace = $class = null;
$classLevel = $level = 0;
$res = $uses = [];
$nameTokens = [\T_STRING, \T_NS_SEPARATOR, \T_NAME_QUALIFIED, \T_NAME_FULLY_QUALIFIED];
while ($token = \current($tokens)) {
\next($tokens);
switch ($token->id) {
case \T_NAMESPACE:
$namespace = \ltrim(self::fetch($tokens, $nameTokens) . '\\', '\\');
$uses = [];
break;
case \T_CLASS:
case \T_INTERFACE:
case \T_TRAIT:
case \PHP_VERSION_ID < 80100 ? \T_CLASS : \T_ENUM:
if ($name = self::fetch($tokens, \T_STRING)) {
$class = $namespace . $name;
$classLevel = $level + 1;
$res[$class] = $uses;
if ($class === $forClass) {
return $res;
}
}
break;
case \T_USE:
while (!$class && ($name = self::fetch($tokens, $nameTokens))) {
$name = \ltrim($name, '\\');
if (self::fetch($tokens, '{')) {
while ($suffix = self::fetch($tokens, $nameTokens)) {
if (self::fetch($tokens, \T_AS)) {
$uses[self::fetch($tokens, \T_STRING)] = $name . $suffix;
} else {
$tmp = \explode('\\', $suffix);
$uses[\end($tmp)] = $name . $suffix;
}
if (!self::fetch($tokens, ',')) {
break;
}
}
} elseif (self::fetch($tokens, \T_AS)) {
$uses[self::fetch($tokens, \T_STRING)] = $name;
} else {
$tmp = \explode('\\', $name);
$uses[\end($tmp)] = $name;
}
if (!self::fetch($tokens, ',')) {
break;
}
}
break;
case \T_CURLY_OPEN:
case \T_DOLLAR_OPEN_CURLY_BRACES:
case \ord('{'):
$level++;
break;
case \ord('}'):
if ($level === $classLevel) {
$class = $classLevel = 0;
}
$level--;
}
}
return $res;
}
/**
* @param string|int|mixed[] $take
*/
private static function fetch(array &$tokens, $take) : ?string
{
$res = null;
while ($token = \current($tokens)) {
if ($token->is($take)) {
$res .= $token->text;
} elseif (!$token->is([\T_DOC_COMMENT, \T_WHITESPACE, \T_COMMENT])) {
break;
}
\next($tokens);
}
return $res;
}
}