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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\MockObject\Generator;
use function count;
use function explode;
use function implode;
use function is_object;
use function is_string;
use function preg_match;
use function preg_replace;
use function sprintf;
use function str_contains;
use function strlen;
use function strpos;
use function substr;
use function substr_count;
use function trim;
use function var_export;
use ReflectionMethod;
use ReflectionParameter;
use SebastianBergmann\Type\ReflectionMapper;
use SebastianBergmann\Type\Type;
use SebastianBergmann\Type\UnknownType;
/**
* @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
*
* @internal This class is not covered by the backward compatibility promise for PHPUnit
*/
final class MockMethod
{
use TemplateLoader;
/**
* @psalm-var class-string
*/
private readonly string $className;
/**
* @psalm-var non-empty-string
*/
private readonly string $methodName;
private readonly bool $cloneArguments;
private readonly string $modifier;
private readonly string $argumentsForDeclaration;
private readonly string $argumentsForCall;
private readonly Type $returnType;
private readonly string $reference;
private readonly bool $callOriginalMethod;
private readonly bool $static;
private readonly ?string $deprecation;
/**
* @psalm-var array<int, mixed>
*/
private readonly array $defaultParameterValues;
/**
* @psalm-var non-negative-int
*/
private readonly int $numberOfParameters;
/**
* @throws ReflectionException
* @throws RuntimeException
*/
public static function fromReflection(ReflectionMethod $method, bool $callOriginalMethod, bool $cloneArguments): self
{
if ($method->isPrivate()) {
$modifier = 'private';
} elseif ($method->isProtected()) {
$modifier = 'protected';
} else {
$modifier = 'public';
}
if ($method->isStatic()) {
$modifier .= ' static';
}
if ($method->returnsReference()) {
$reference = '&';
} else {
$reference = '';
}
$docComment = $method->getDocComment();
if (is_string($docComment) &&
preg_match('#\*[ \t]*+@deprecated[ \t]*+(.*?)\r?+\n[ \t]*+\*(?:[ \t]*+@|/$)#s', $docComment, $deprecation)) {
$deprecation = trim(preg_replace('#[ \t]*\r?\n[ \t]*+\*[ \t]*+#', ' ', $deprecation[1]));
} else {
$deprecation = null;
}
return new self(
$method->getDeclaringClass()->getName(),
$method->getName(),
$cloneArguments,
$modifier,
self::methodParametersForDeclaration($method),
self::methodParametersForCall($method),
self::methodParametersDefaultValues($method),
count($method->getParameters()),
(new ReflectionMapper)->fromReturnType($method),
$reference,
$callOriginalMethod,
$method->isStatic(),
$deprecation,
);
}
/**
* @param class-string $className
* @param non-empty-string $methodName
*/
public static function fromName(string $className, string $methodName, bool $cloneArguments): self
{
return new self(
$className,
$methodName,
$cloneArguments,
'public',
'',
'',
[],
0,
new UnknownType,
'',
false,
false,
null,
);
}
/**
* @psalm-param class-string $className
* @psalm-param non-empty-string $methodName
* @psalm-param array<int, mixed> $defaultParameterValues
* @psalm-param non-negative-int $numberOfParameters
*/
private function __construct(string $className, string $methodName, bool $cloneArguments, string $modifier, string $argumentsForDeclaration, string $argumentsForCall, array $defaultParameterValues, int $numberOfParameters, Type $returnType, string $reference, bool $callOriginalMethod, bool $static, ?string $deprecation)
{
$this->className = $className;
$this->methodName = $methodName;
$this->cloneArguments = $cloneArguments;
$this->modifier = $modifier;
$this->argumentsForDeclaration = $argumentsForDeclaration;
$this->argumentsForCall = $argumentsForCall;
$this->defaultParameterValues = $defaultParameterValues;
$this->numberOfParameters = $numberOfParameters;
$this->returnType = $returnType;
$this->reference = $reference;
$this->callOriginalMethod = $callOriginalMethod;
$this->static = $static;
$this->deprecation = $deprecation;
}
/**
* @psalm-return non-empty-string
*/
public function methodName(): string
{
return $this->methodName;
}
/**
* @throws RuntimeException
*/
public function generateCode(): string
{
if ($this->static) {
$templateFile = 'doubled_static_method.tpl';
} else {
$templateFile = sprintf(
'%s_method.tpl',
$this->callOriginalMethod ? 'proxied' : 'doubled',
);
}
$deprecation = $this->deprecation;
$returnResult = '';
if (!$this->returnType->isNever() && !$this->returnType->isVoid()) {
$returnResult = <<<'EOT'
return $__phpunit_result;
EOT;
}
if (null !== $this->deprecation) {
$deprecation = "The {$this->className}::{$this->methodName} method is deprecated ({$this->deprecation}).";
$deprecationTemplate = $this->loadTemplate('deprecation.tpl');
$deprecationTemplate->setVar(
[
'deprecation' => var_export($deprecation, true),
],
);
$deprecation = $deprecationTemplate->render();
}
$template = $this->loadTemplate($templateFile);
$argumentsCount = 0;
if (str_contains($this->argumentsForCall, '...')) {
$argumentsCount = null;
} elseif (!empty($this->argumentsForCall)) {
$argumentsCount = substr_count($this->argumentsForCall, ',') + 1;
}
$template->setVar(
[
'arguments_decl' => $this->argumentsForDeclaration,
'arguments_call' => $this->argumentsForCall,
'return_declaration' => !empty($this->returnType->asString()) ? (': ' . $this->returnType->asString()) : '',
'return_type' => $this->returnType->asString(),
'arguments_count' => $argumentsCount,
'class_name' => $this->className,
'method_name' => $this->methodName,
'modifier' => $this->modifier,
'reference' => $this->reference,
'clone_arguments' => $this->cloneArguments ? 'true' : 'false',
'deprecation' => $deprecation,
'return_result' => $returnResult,
],
);
return $template->render();
}
public function returnType(): Type
{
return $this->returnType;
}
/**
* @psalm-return array<int, mixed>
*/
public function defaultParameterValues(): array
{
return $this->defaultParameterValues;
}
/**
* @psalm-return non-negative-int
*/
public function numberOfParameters(): int
{
return $this->numberOfParameters;
}
/**
* Returns the parameters of a function or method.
*
* @throws RuntimeException
*/
private static function methodParametersForDeclaration(ReflectionMethod $method): string
{
$parameters = [];
$types = (new ReflectionMapper)->fromParameterTypes($method);
foreach ($method->getParameters() as $i => $parameter) {
$name = '$' . $parameter->getName();
/* Note: PHP extensions may use empty names for reference arguments
* or "..." for methods taking a variable number of arguments.
*/
if ($name === '$' || $name === '$...') {
$name = '$arg' . $i;
}
$default = '';
$reference = '';
$typeDeclaration = '';
if (!$types[$i]->type()->isUnknown()) {
$typeDeclaration = $types[$i]->type()->asString() . ' ';
}
if ($parameter->isPassedByReference()) {
$reference = '&';
}
if ($parameter->isVariadic()) {
$name = '...' . $name;
} elseif ($parameter->isDefaultValueAvailable()) {
$default = ' = ' . self::exportDefaultValue($parameter);
} elseif ($parameter->isOptional()) {
$default = ' = null';
}
$parameters[] = $typeDeclaration . $reference . $name . $default;
}
return implode(', ', $parameters);
}
/**
* Returns the parameters of a function or method.
*
* @throws ReflectionException
*/
private static function methodParametersForCall(ReflectionMethod $method): string
{
$parameters = [];
foreach ($method->getParameters() as $i => $parameter) {
$name = '$' . $parameter->getName();
/* Note: PHP extensions may use empty names for reference arguments
* or "..." for methods taking a variable number of arguments.
*/
if ($name === '$' || $name === '$...') {
$name = '$arg' . $i;
}
if ($parameter->isVariadic()) {
continue;
}
if ($parameter->isPassedByReference()) {
$parameters[] = '&' . $name;
} else {
$parameters[] = $name;
}
}
return implode(', ', $parameters);
}
/**
* @throws ReflectionException
*/
private static function exportDefaultValue(ReflectionParameter $parameter): string
{
try {
$defaultValue = $parameter->getDefaultValue();
if (!is_object($defaultValue)) {
return var_export($defaultValue, true);
}
$parameterAsString = $parameter->__toString();
return explode(
' = ',
substr(
substr(
$parameterAsString,
strpos($parameterAsString, '<optional> ') + strlen('<optional> '),
),
0,
-2,
),
)[1];
// @codeCoverageIgnoreStart
} catch (\ReflectionException $e) {
throw new ReflectionException(
$e->getMessage(),
$e->getCode(),
$e,
);
}
// @codeCoverageIgnoreEnd
}
/**
* @psalm-return array<int, mixed>
*/
private static function methodParametersDefaultValues(ReflectionMethod $method): array
{
$result = [];
foreach ($method->getParameters() as $i => $parameter) {
if (!$parameter->isDefaultValueAvailable()) {
continue;
}
$result[$i] = $parameter->getDefaultValue();
}
return $result;
}
}