<?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 Nette\Utils;

use 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() */
	public static function getParameterDefaultValue(\ReflectionParameter $param): mixed
	{
		if ($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)
				// doc-comment guessing as workaround for insufficient PHP reflection
				&& $trait->getProperty($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)
			&& ($m = new \ReflectionMethod($alias))
			&& $hash === [$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(__METHOD__))->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 $ref->name . '()';
		} elseif ($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 {
			$tokens = \PhpToken::tokenize($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;
	}


	private static function fetch(array &$tokens, string|int|array $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;
	}
}

• [F] ArrayHash.php
  Delete
• [F] ArrayList.php
  Delete
• [F] Arrays.php
  Delete
• [F] Callback.php
  Delete
• [F] DateTime.php
  Delete
• [F] exceptions.php
  Delete
• [F] FileInfo.php
  Delete
• [F] FileSystem.php
  Delete
• [F] Finder.php
  Delete
• [F] Floats.php
  Delete
• [F] Helpers.php
  Delete
• [F] Html.php
  Delete
• [F] Image.php
  Delete
• [F] ImageColor.php
  Delete
• [F] ImageType.php
  Delete
• [F] Iterables.php
  Delete
• [F] Json.php
  Delete
• [F] ObjectHelpers.php
  Delete
• [F] Paginator.php
  Delete
• [F] Random.php
  Delete
• [F] Reflection.php
  Delete
• [F] ReflectionMethod.php
  Delete
• [F] Strings.php
  Delete
• [F] Type.php
  Delete
• [F] Validators.php
  Delete

How To Payment

Simple Steps to Complete Your Payment Securely and Efficiently

Making a payment on our website is quick and secure. Start by logging in or creating an account. Select your preferred payment method, input the required details, and review the information. Once you confirm everything is correct, click on the "Submit Payment" button. You’ll receive instant confirmation and can track your payment status through your account dashboard. It’s an easy and secure process.

• Go to the Payment Section: Access the payment area on our website or app.
• Choose Your Payment Method: Select your preferred payment option.
• Enter Payment Details: Provide the necessary payment information.
• Verify Your Information: Check that all details are correct.
• Confirm Your Payment: Click "Submit Payment" to complete the transaction.