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CloneTest.php
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CloneTest.php
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<?php
declare(strict_types=1);
namespace Psalm\Tests;
use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait;
use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
class CloneTest extends TestCase
{
use InvalidCodeAnalysisTestTrait;
use ValidCodeAnalysisTestTrait;
/**
* @return iterable<string,array{code:string,assertions?:array<string,string>,ignored_issues?:list<string>}>
*/
public function providerValidCodeParse(): iterable
{
return [
'cloneCorrect' => [
'code' => '<?php
class A {}
function foo(A $a) : A {
return clone $a;
}
$a = foo(new A());',
],
'cloneCorrectWithPublicMethod' => [
'code' => '<?php
class A {
public function __clone() {}
}
function foo(A $a) : A {
return clone $a;
}
foo(new A());',
],
'clonePrivateInternally' => [
'code' => '<?php
class A {
private function __clone() {}
public function foo(): self {
return clone $this;
}
}',
],
];
}
/**
* @return iterable<string,array{code:string,error_message:string,ignored_issues?:list<string>,php_version?:string}>
*/
public function providerInvalidCodeParse(): iterable
{
return [
'invalidIntClone' => [
'code' => '<?php
$a = 5;
clone $a;',
'error_message' => 'InvalidClone',
],
'possiblyInvalidIntClone' => [
'code' => '<?php
$a = rand(0, 1) ? 5 : new Exception();
clone $a;',
'error_message' => 'PossiblyInvalidClone',
],
'invalidMixedClone' => [
'code' => '<?php
/** @var mixed $a */
$a = 5;
clone $a;',
'error_message' => 'MixedClone',
],
'notVisibleCloneMethod' => [
'code' => '<?php
class A {
private function __clone() {}
}
$a = new A();
clone $a;',
'error_message' => 'InvalidClone',
],
'notVisibleCloneMethodSubClass' => [
'code' => '<?php
class a {
private function __clone() {}
}
class b extends a {}
clone new b;',
'error_message' => 'InvalidClone',
],
'notVisibleCloneMethodTrait' => [
'code' => '<?php
trait a {
private function __clone() {}
}
class b {
use a;
}
clone new b;',
'error_message' => 'InvalidClone',
],
'invalidGenericClone' => [
'code' => '<?php
/**
* @template T as int|string
* @param T $a
*/
function foo($a): void {
clone $a;
}',
'error_message' => 'InvalidClone',
],
'possiblyInvalidGenericClone' => [
'code' => '<?php
/**
* @template T as int|Exception
* @param T $a
*/
function foo($a): void {
clone $a;
}',
'error_message' => 'PossiblyInvalidClone',
],
'mixedGenericClone' => [
'code' => '<?php
/**
* @template T
* @param T $a
*/
function foo($a): void {
clone $a;
}',
'error_message' => 'MixedClone',
],
'mixedTypeInferredIfErrors' => [
'code' => '<?php
class A {}
/**
* @param A|string $a
*/
function foo($a): void {
/**
* @psalm-suppress PossiblyInvalidClone
*/
$cloned = clone $a;
}',
'error_message' => 'MixedAssignment',
],
'missingClass' => [
'code' => '<?php
/**
* @psalm-suppress UndefinedDocblockClass
* @psalm-suppress InvalidReturnType
* @return Editable
*/
function get() {}
/** @psalm-suppress UndefinedDocblockClass */
clone get();',
'error_message' => 'InvalidClone',
],
];
}
}