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<?php
/**
* Mockery
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://github.com/padraic/mockery/blob/master/LICENSE
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to padraic@php.net so we can send you a copy immediately.
*
* @category Mockery
* @package Mockery
* @copyright Copyright (c) 2017 Dave Marshall https://github.com/davedevelopment
* @license http://github.com/padraic/mockery/blob/master/LICENSE New BSD License
*/
namespace Mockery;
/**
* @internal
*/
class Reflector
{
/**
* Determine if the parameter is typed as an array.
*
* @param \ReflectionParameter $param
*
* @return bool
*/
public static function isArray(\ReflectionParameter $param)
{
$type = $param->getType();
return $type instanceof \ReflectionNamedType && $type->getName();
}
/**
* Compute the string representation for the paramater type.
*
* @param \ReflectionParameter $param
* @param bool $withoutNullable
*
* @return string|null
*/
public static function getTypeHint(\ReflectionParameter $param, $withoutNullable = false)
{
if (!$param->hasType()) {
return null;
}
$type = $param->getType();
$declaringClass = $param->getDeclaringClass();
$typeHint = self::typeToString($type, $declaringClass);
return (!$withoutNullable && $type->allowsNull()) ? self::formatNullableType($typeHint) : $typeHint;
}
/**
* Compute the string representation for the return type.
*
* @param \ReflectionParameter $param
* @param bool $withoutNullable
*
* @return string|null
*/
public static function getReturnType(\ReflectionMethod $method, $withoutNullable = false)
{
$type = $method->getReturnType();
if (is_null($type) && method_exists($method, 'getTentativeReturnType')) {
$type = $method->getTentativeReturnType();
}
if (is_null($type)) {
return null;
}
$typeHint = self::typeToString($type, $method->getDeclaringClass());
return (!$withoutNullable && $type->allowsNull()) ? self::formatNullableType($typeHint) : $typeHint;
}
/**
* Compute the string representation for the simplest return type.
*
* @param \ReflectionParameter $param
*
* @return string|null
*/
public static function getSimplestReturnType(\ReflectionMethod $method)
{
$type = $method->getReturnType();
if (is_null($type) && method_exists($method, 'getTentativeReturnType')) {
$type = $method->getTentativeReturnType();
}
if (is_null($type) || $type->allowsNull()) {
return null;
}
$typeInformation = self::getTypeInformation($type, $method->getDeclaringClass());
// return the first primitive type hint
foreach ($typeInformation as $info) {
if ($info['isPrimitive']) {
return $info['typeHint'];
}
}
// if no primitive type, return the first type
foreach ($typeInformation as $info) {
return $info['typeHint'];
}
return null;
}
/**
* Get the string representation of the given type.
*
* @param \ReflectionType $type
* @param string $declaringClass
*
* @return string|null
*/
private static function typeToString(\ReflectionType $type, \ReflectionClass $declaringClass)
{
$char = $type instanceof \ReflectionIntersectionType ? "&" : "|";
return \implode($char, \array_map(function (array $typeInformation) {
return $typeInformation['typeHint'];
}, self::getTypeInformation($type, $declaringClass)));
}
/**
* Get the string representation of the given type.
*
* @param \ReflectionType $type
* @param \ReflectionClass $declaringClass
*
* @return list<array{typeHint: string, isPrimitive: bool}>
*/
private static function getTypeInformation(\ReflectionType $type, \ReflectionClass $declaringClass)
{
// PHP 8 union types and PHP 8.1 intersection types can be recursively processed
if ($type instanceof \ReflectionUnionType || $type instanceof \ReflectionIntersectionType) {
$types = [];
foreach ($type->getTypes() as $innterType) {
foreach (self::getTypeInformation($innterType, $declaringClass) as $info) {
if ($info['typeHint'] === 'null' && $info['isPrimitive']) {
continue;
}
$types[] = $info;
}
}
return $types;
}
// $type must be an instance of \ReflectionNamedType
$typeHint = $type->getName();
// builtins can be returned as is
if ($type->isBuiltin()) {
return [
[
'typeHint' => $typeHint,
'isPrimitive' => in_array($typeHint, ['array', 'bool', 'int', 'float', 'null', 'object', 'string']),
],
];
}
// 'static' can be returned as is
if ($typeHint === 'static') {
return [
[
'typeHint' => $typeHint,
'isPrimitive' => false,
],
];
}
// 'self' needs to be resolved to the name of the declaring class
if ($typeHint === 'self') {
$typeHint = $declaringClass->getName();
}
// 'parent' needs to be resolved to the name of the parent class
if ($typeHint === 'parent') {
$typeHint = $declaringClass->getParentClass()->getName();
}
// class names need prefixing with a slash
return [
[
'typeHint' => sprintf('\\%s', $typeHint),
'isPrimitive' => false,
],
];
}
/**
* Format the given type as a nullable type.
*
* @param string $typeHint
*
* @return string
*/
private static function formatNullableType($typeHint)
{
if (\PHP_VERSION_ID < 80000) {
return sprintf('?%s', $typeHint);
}
if ($typeHint === 'null' || $typeHint === 'mixed') {
return $typeHint;
}
return sprintf('%s|null', $typeHint);
}
}
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