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psalm/tests/Template/TemplateExtendsTest.php

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Split out @extends template test
2019-01-26 04:33:42 +01:00
<?php
namespace Psalm\Tests\Template;
use Psalm\Tests\TestCase;
use Psalm\Tests\Traits;
class TemplateExtendsTest extends TestCase
{
use Traits\InvalidCodeAnalysisTestTrait;
use Traits\ValidCodeAnalysisTestTrait;
/**
More provider typing
2019-03-01 21:55:20 +01:00
* @return iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
Split out @extends template test
2019-01-26 04:33:42 +01:00
*/
public function providerValidCodeParse()
{
return [
'phanTuple' => [
'<?php
namespace Phan\Library;
/**
* An abstract tuple.
*/
abstract class Tuple
{
const ARITY = 0;
/**
* @return int
* The arity of this tuple
*/
public function arity(): int
{
return (int)static::ARITY;
}
/**
* @return array
* An array of all elements in this tuple.
*/
abstract public function toArray(): array;
}
/**
* A tuple of 1 element.
*
* @template T0
* The type of element zero
*/
class Tuple1 extends Tuple
{
/** @var int */
const ARITY = 1;
/** @var T0 */
public $_0;
/**
* @param T0 $_0
* The 0th element
*/
public function __construct($_0) {
$this->_0 = $_0;
}
/**
* @return int
* The arity of this tuple
*/
public function arity(): int
{
return (int)static::ARITY;
}
/**
* @return array
* An array of all elements in this tuple.
*/
public function toArray(): array
{
return [
$this->_0,
];
}
}
/**
* A tuple of 2 elements.
*
* @template T0
* The type of element zero
*
* @template T1
* The type of element one
*
* @extends Tuple1<T0>
*/
class Tuple2 extends Tuple1
{
/** @var int */
const ARITY = 2;
/** @var T1 */
public $_1;
/**
* @param T0 $_0
* The 0th element
*
* @param T1 $_1
* The 1st element
*/
public function __construct($_0, $_1) {
parent::__construct($_0);
$this->_1 = $_1;
}
/**
* @return array
* An array of all elements in this tuple.
*/
public function toArray(): array
{
return [
$this->_0,
$this->_1,
];
}
}
$a = new Tuple2("cool", 5);
/** @return void */
function takes_int(int $i) {}
/** @return void */
function takes_string(string $s) {}
takes_string($a->_0);
takes_int($a->_1);',
],
'templateExtendsSameName' => [
'<?php
/**
* @template TValue
*/
class ValueContainer
{
/**
* @var TValue
*/
private $v;
/**
* @param TValue $v
*/
public function __construct($v)
{
$this->v = $v;
}
/**
* @return TValue
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template TKey
* @template TValue
* @template-extends ValueContainer<TValue>
*/
class KeyValueContainer extends ValueContainer
{
/**
* @var TKey
*/
private $k;
/**
* @param TKey $k
* @param TValue $v
*/
public function __construct($k, $v)
{
$this->k = $k;
parent::__construct($v);
}
/**
* @return TKey
*/
public function getKey()
{
return $this->k;
}
}
$a = new KeyValueContainer("hello", 15);
$b = $a->getValue();',
[
'$a' => 'KeyValueContainer<string, int>',
Add some formatting
2019-03-23 19:27:54 +01:00
'$b' => 'int',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
],
'templateExtendsDifferentName' => [
'<?php
/**
* @template TValue
*/
class ValueContainer
{
/**
* @var TValue
*/
private $v;
/**
* @param TValue $v
*/
public function __construct($v)
{
$this->v = $v;
}
/**
* @return TValue
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template TKey
* @template Tv
* @template-extends ValueContainer<Tv>
*/
class KeyValueContainer extends ValueContainer
{
/**
* @var TKey
*/
private $k;
/**
* @param TKey $k
* @param Tv $v
*/
public function __construct($k, $v)
{
$this->k = $k;
parent::__construct($v);
}
/**
* @return TKey
*/
public function getKey()
{
return $this->k;
}
}
$a = new KeyValueContainer("hello", 15);
$b = $a->getValue();',
[
'$a' => 'KeyValueContainer<string, int>',
Add some formatting
2019-03-23 19:27:54 +01:00
'$b' => 'int',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
],
'extendsWithNonTemplate' => [
'<?php
/**
* @template T
*/
abstract class Container
{
/**
* @return T
*/
public abstract function getItem();
}
class Foo
{
}
/**
* @template-extends Container<Foo>
*/
class FooContainer extends Container
{
/**
* @return Foo
*/
public function getItem()
{
return new Foo();
}
}
/**
* @template TItem
* @param Container<TItem> $c
* @return TItem
*/
function getItemFromContainer(Container $c) {
return $c->getItem();
}
$fc = new FooContainer();
$f1 = $fc->getItem();
$f2 = getItemFromContainer($fc);',
[
'$fc' => 'FooContainer',
'$f1' => 'Foo',
'$f2' => 'Foo',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'supportBareExtends' => [
'<?php
/**
* @template T
*/
abstract class Container
{
/**
* @return T
*/
public abstract function getItem();
}
class Foo
{
}
/**
* @extends Container<Foo>
*/
class FooContainer extends Container
{
/**
* @return Foo
*/
public function getItem()
{
return new Foo();
}
}
/**
* @template TItem
* @param Container<TItem> $c
* @return TItem
*/
function getItemFromContainer(Container $c) {
return $c->getItem();
}
$fc = new FooContainer();
$f1 = $fc->getItem();
$f2 = getItemFromContainer($fc);',
[
'$fc' => 'FooContainer',
'$f1' => 'Foo',
'$f2' => 'Foo',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'allowExtendingParameterisedTypeParam' => [
'<?php
/**
* @template T as object
*/
abstract class Container
{
/**
* @param T $obj
*/
abstract public function uri($obj) : string;
}
class Foo {}
/**
* @template-extends Container<Foo>
*/
class FooContainer extends Container {
/** @param Foo $obj */
public function uri($obj) : string {
return "hello";
}
Add some formatting
2019-03-23 19:27:54 +01:00
}',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'extendsWithNonTemplateWithoutImplementing' => [
'<?php
/**
* @template T as array-key
*/
abstract class User
{
/**
* @var T
*/
private $id;
/**
* @param T $id
*/
public function __construct($id)
{
$this->id = $id;
}
/**
* @return T
*/
public function getID()
{
return $this->id;
}
}
/**
* @template-extends User<int>
*/
class AppUser extends User {}
$au = new AppUser(-1);
$id = $au->getId();',
[
'$au' => 'AppUser',
'$id' => 'int',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
Refactor storage of template names to prevent clashes
2019-03-22 20:59:10 +01:00
'extendsTwiceSameNameCorrect' => [
Split out @extends template test
2019-01-26 04:33:42 +01:00
'<?php
/**
* @template T
*/
class Container
{
/**
* @var T
*/
private $v;
/**
* @param T $v
*/
public function __construct($v)
{
$this->v = $v;
}
/**
* @return T
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template T
* @template-extends Container<T>
*/
class ChildContainer extends Container {}
/**
* @template T
* @template-extends ChildContainer<T>
*/
class GrandChildContainer extends ChildContainer {}
$fc = new GrandChildContainer(5);
$a = $fc->getValue();',
[
'$a' => 'int',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'extendsTwiceDifferentNameUnbrokenChain' => [
'<?php
/**
* @template T1
*/
class Container
{
/**
* @var T1
*/
private $v;
/**
* @param T1 $v
*/
public function __construct($v)
{
$this->v = $v;
}
/**
* @return T1
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template T2
* @template-extends Container<T2>
*/
class ChildContainer extends Container {}
/**
* @template T3
* @template-extends ChildContainer<T3>
*/
class GrandChildContainer extends ChildContainer {}
$fc = new GrandChildContainer(5);
$a = $fc->getValue();',
[
'$a' => 'int',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'templateExtendsOnceAndBound' => [
'<?php
/** @template T1 */
class Repo {
/** @return ?T1 */
public function findOne() {}
}
class SpecificEntity {}
/** @template-extends Repo<SpecificEntity> */
class AnotherRepo extends Repo {}
$a = new AnotherRepo();
$b = $a->findOne();',
[
'$a' => 'AnotherRepo',
'$b' => 'null|SpecificEntity',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'templateExtendsTwiceAndBound' => [
'<?php
/** @template T1 */
class Repo {
/** @return ?T1 */
public function findOne() {}
}
/**
* @template T2
* @template-extends Repo<T2>
*/
class CommonAppRepo extends Repo {}
class SpecificEntity {}
/** @template-extends CommonAppRepo<SpecificEntity> */
class SpecificRepo extends CommonAppRepo {}
$a = new SpecificRepo();
$b = $a->findOne();',
[
'$a' => 'SpecificRepo',
'$b' => 'null|SpecificEntity',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'multipleArgConstraints' => [
'<?php
class A {}
class AChild extends A {}
/**
* @template T
* @param callable(T):void $c1
* @param callable(T):void $c2
* @param T $a
*/
function foo(callable $c1, callable $c2, $a): void {
$c1($a);
$c2($a);
}
foo(
function(A $_a) : void {},
function(A $_a) : void {},
new A()
);
foo(
function(A $_a) : void {},
function(A $_a) : void {},
new AChild()
Add some formatting
2019-03-23 19:27:54 +01:00
);',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'templatedInterfaceExtendedMethodInheritReturnType' => [
'<?php
class Foo {}
/**
* @template-implements IteratorAggregate<int, Foo>
*/
class SomeIterator implements IteratorAggregate
{
public function getIterator() {
yield new Foo;
}
}
$i = (new SomeIterator())->getIterator();',
[
'$i' => 'Traversable<int, Foo>',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'templateCountOnExtendedAndImplemented' => [
'<?php
/**
* @template TKey
* @template TValue
*/
interface Selectable {}
/**
* @template T
* @template-implements Selectable<int,T>
*/
class Repository implements Selectable {}
interface SomeEntity {}
/**
* @template-extends Repository<SomeEntity>
*/
Add some formatting
2019-03-23 19:27:54 +01:00
class SomeRepository extends Repository {}',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
'iterateOverExtendedArrayObjectWithParam' => [
Remove a bunch of hacks around generic offsets Also fixes #1245
2019-01-26 22:58:49 +01:00
'<?php
class O {}
class Foo extends O {
public function bar() : void {}
}
/**
* @template T as O
* @template-extends ArrayObject<int, T>
*/
class Collection extends ArrayObject
{
/** @var class-string<T> */
public $class;
/** @param class-string<T> $class */
public function __construct(string $class) {
$this->class = $class;
}
}
/** @return Collection<Foo> */
function getFooCollection() : Collection {
return new Collection(Foo::class);
}
foreach (getFooCollection() as $i => $foo) {
$foo->bar();
}',
],
'iterateOverExtendedArrayObjectWithoutParam' => [
'<?php
class O {}
class Foo extends O {
public function bar() : void {}
}
/**
* @template T as O
* @template-extends ArrayObject<int, T>
*/
class Collection extends ArrayObject
{
/** @var class-string<T> */
public $class;
/** @param class-string<T> $class */
public function __construct(string $class) {
$this->class = $class;
}
}
function getFooCollection() : Collection {
return new Collection(Foo::class);
}
foreach (getFooCollection() as $i => $foo) {}',
],
'iterateOverExtendedArrayObjectFromClassCall' => [
'<?php
class O {}
class Foo extends O {
public function bar() : void {}
/** @return Collection<self> */
public static function getSelfCollection() : Collection {
return new Collection(self::class);
}
}
/**
* @template T as O
* @template-extends ArrayObject<int, T>
*/
class Collection extends ArrayObject
{
/** @var class-string<T> */
public $class;
/** @param class-string<T> $class */
public function __construct(string $class) {
$this->class = $class;
}
}
foreach (Foo::getSelfCollection() as $i => $foo) {
$foo->bar();
}',
],
'iterateOverExtendedArrayObjectInsideClass' => [
'<?php
class O {}
class Foo extends O {
public function bar() : void {}
/**
* @param Collection<self> $c
*/
public static function takesSelfCollection(Collection $c) : void {
foreach ($c as $i => $foo) {
$foo->bar();
}
}
}
/**
* @template T as O
* @template-extends ArrayObject<int, T>
*/
class Collection extends ArrayObject
{
/** @var class-string<T> */
public $class;
/** @param class-string<T> $class */
public function __construct(string $class) {
$this->class = $class;
}
}',
],
'iterateOverExtendedArrayObjectThisClassIteration' => [
'<?php
class O {}
/**
* @template T as O
* @template-extends ArrayObject<int, T>
*/
class Collection extends ArrayObject
{
/** @var class-string<T> */
public $class;
/** @param class-string<T> $class */
public function __construct(string $class) {
$this->class = $class;
}
private function iterate() : void {
foreach ($this as $o) {}
}
}',
],
'iterateOverExtendedArrayObjectThisClassIterationWithExplicitGetIterator' => [
'<?php
class O {}
class Foo extends O {
/** @return Collection<self> */
public static function getSelfCollection() : Collection {
return new Collection(self::class);
}
public function bar() : void {}
}
/**
* @template T as O
* @template-extends ArrayObject<int, T>
*/
class Collection extends ArrayObject
{
/** @var class-string<T> */
public $class;
/** @param class-string<T> $class */
public function __construct(string $class) {
$this->class = $class;
}
/**
* @return \ArrayIterator<int, T>
*/
public function getIterator()
{
/** @var ArrayIterator<int, O> */
return parent::getIterator();
}
}
/** @return Collection<Foo> */
function getFooCollection() : Collection {
return new Collection(Foo::class);
}
foreach (getFooCollection() as $i => $foo) {
$foo->bar();
}
foreach (Foo::getSelfCollection() as $i => $foo) {
$foo->bar();
}',
],
'iterateOverSelfImplementedIterator' => [
'<?php
class O {}
class Foo extends O {}
/**
* @template-implements Iterator<int, Foo>
*/
class FooCollection implements Iterator {
private function iterate() : void {
foreach ($this as $foo) {}
}
public function current() { return new Foo(); }
public function key(): int { return 0; }
public function next(): void {}
public function rewind(): void {}
public function valid(): bool { return false; }
}',
],
Fix #1072 - add support for @use SomeTrait<T>
2019-01-28 05:12:40 +01:00
'traitUse' => [
'<?php
/**
* @template T
*/
trait CollectionTrait
{
/**
* @return array<T>
*/
abstract function elements() : array;
/**
* @return T|null
*/
public function first()
{
return $this->elements()[0] ?? null;
}
}
class Service
{
/**
* @use CollectionTrait<int>
*/
use CollectionTrait;
/**
* @return array<int>
*/
public function elements(): array
{
return [1, 2, 3, 4];
}
}',
],
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
'extendedTraitUse' => [
'<?php
/**
* @template T
*/
trait CollectionTrait
{
/**
* @return array<T>
*/
abstract function elements() : array;
/**
* @return T|null
*/
public function first()
{
return $this->elements()[0] ?? null;
}
}
/**
* @template TValue
*/
trait BridgeTrait
{
/**
* @use CollectionTrait<TValue>
*/
use CollectionTrait;
}
class Service
{
/**
* @use BridgeTrait<int>
*/
use BridgeTrait;
/**
* @return array<int>
*/
public function elements(): array
{
return [1, 2, 3, 4];
}
}',
],
'extendedTraitUseAlreadyBound' => [
'<?php
/**
* @template T
*/
trait CollectionTrait
{
/**
* @return array<T>
*/
abstract function elements() : array;
/**
* @return T|null
*/
public function first()
{
return $this->elements()[0] ?? null;
}
}
trait BridgeTrait
{
/**
* @use CollectionTrait<int>
*/
use CollectionTrait;
}
class Service
{
use BridgeTrait;
/**
* @return array<int>
*/
public function elements(): array
{
return [1, 2, 3, 4];
}
}',
],
'extendClassThatParameterizesTemplatedParent' => [
'<?php
/**
* @template T
*/
abstract class Collection
{
/**
* @return array<T>
*/
abstract function elements() : array;
/**
* @return T|null
*/
public function first()
{
return $this->elements()[0] ?? null;
}
}
/**
* @template-extends Collection<int>
*/
abstract class Bridge extends Collection {}
class Service extends Bridge
{
/**
* @return array<int>
*/
public function elements(): array
{
return [1, 2, 3];
}
}
$a = (new Service)->first();',
[
'$a' => 'null|int',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
Fix #1259 - add support for SplObjectStorage type params
2019-01-30 19:03:22 +01:00
'splObjectStorage' => [
'<?php
class SomeService
{
/**
* @var \SplObjectStorage<\stdClass, mixed>
*/
public $handlers;
/**
* @param SplObjectStorage<\stdClass, mixed> $handlers
*/
public function __construct(SplObjectStorage $handlers)
{
$this->handlers = $handlers;
}
}
Fix invalid inheritance for SplObjectStorage
2019-01-30 19:48:05 +01:00
/** @var SplObjectStorage<\stdClass, string> */
Fix #1259 - add support for SplObjectStorage type params
2019-01-30 19:03:22 +01:00
$storage = new SplObjectStorage();
Fix invalid inheritance for SplObjectStorage
2019-01-30 19:48:05 +01:00
new SomeService($storage);
$c = new \stdClass();
$storage[$c] = "hello";
$b = $storage->offsetGet($c);',
[
'$b' => 'string',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Fix #1259 - add support for SplObjectStorage type params
2019-01-30 19:03:22 +01:00
],
'extendsArrayIterator' => [
'<?php
class User {}
/**
* @template-extends ArrayIterator<int, User>
*/
class Users extends ArrayIterator
{
public function __construct(User ...$users) {
parent::__construct($users);
}
}',
],
Fix #1282 - allow generic self and static
2019-02-05 14:02:06 +01:00
'genericStaticAndSelf' => [
'<?php
/**
* @template T
*/
interface Functor
{
/**
* @template U
*
* @param Closure(T):U $c
*
* @return static<U>
*/
public function map(Closure $c);
}
/**
* @template T
*/
class Box implements Functor
{
/**
* @var T
*/
public $value;
/**
* @param T $x
*/
public function __construct($x)
{
$this->value = $x;
}
/**
* @template U
*
* @param Closure(T):U $c
*
* @return self<U>
*/
public function map(Closure $c)
{
return new Box($c($this->value));
}
}',
],
Only move issue once
2019-02-08 00:47:50 +01:00
'useGenericParentMethod' => [
'<?php
/**
* @template-extends ArrayObject<string, string>
*/
class Foo extends ArrayObject
{
public function bar() : void {
$c = $this->getArrayCopy();
foreach ($c as $d) {
echo $d;
}
}
}',
],
Fix #1310 - check template defining class matches
2019-02-10 18:02:12 +01:00
'templateExtendsDifferentNameWithStaticCall' => [
'<?php
/** @template T */
class Container {
/** @var T */
private $t;
/** @param T $t */
private function __construct($t) {
$this->t = $t;
}
/**
* @param T $t
* @return static<T>
*/
public static function getContainer($t) {
return new static($t);
}
/**
* @return T
*/
public function getValue()
{
return $this->t;
}
}
/**
* @template T1 as object
* @template-extends Container<T1>
*/
class ObjectContainer extends Container {}
/**
* @template T2 as A
* @template-extends ObjectContainer<T2>
*/
class AContainer extends ObjectContainer {}
class A {
function foo() : void {}
}
$b = AContainer::getContainer(new A());',
[
'$b' => 'AContainer<A>',
],
],
'templateExtendsSameNameWithStaticCall' => [
'<?php
/** @template T */
class Container {
/** @var T */
private $t;
/** @param T $t */
private function __construct($t) {
$this->t = $t;
}
/**
* @param T $t
* @return static<T>
*/
public static function getContainer($t) {
return new static($t);
}
/**
* @return T
*/
public function getValue()
{
return $this->t;
}
}
/**
* @template T as object
* @template-extends Container<T>
*/
class ObjectContainer extends Container {}
/**
* @template T as A
* @template-extends ObjectContainer<T>
*/
class AContainer extends ObjectContainer {}
class A {
function foo() : void {}
}
$b = AContainer::getContainer(new A());',
[
'$b' => 'AContainer<A>',
],
],
Fix #1309 - no PropertyNotSetInConstructor warnings for grandchild of class
2019-02-10 21:01:10 +01:00
'returnParentExtendedTemplateProperty' => [
'<?php
/**
* @template T
*/
class Container {
/**
* @var T
*/
public $t;
/**
* @param T $t
*/
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template-extends Container<int>
*/
class IntContainer extends Container {
public function __construct(int $i) {
parent::__construct($i);
}
public function getValue() : int {
return $this->t;
}
}',
],
'childSetInConstructor' => [
'<?php
/**
* @template T0
*/
class Container {
/**
* @var T0
*/
public $t;
/**
* @param T0 $t
*/
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template T1 as object
* @template-extends Container<T1>
*/
class ObjectContainer extends Container {}',
],
'grandChildSetInConstructor' => [
'<?php
/**
* @template T0
*/
class Container {
/**
* @var T0
*/
public $t;
/**
* @param T0 $t
*/
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template T1 as object
* @template-extends Container<T1>
*/
class ObjectContainer extends Container {}
/**
* @template T2 as A
* @template-extends ObjectContainer<T2>
*/
class AContainer extends ObjectContainer {}
class A {}',
],
Fix #1364 - use proper types for extended getIterator calls
2019-02-22 05:01:34 +01:00
'extendArrayObjectWithTemplateParams' => [
'<?php
/**
* @template TKey
* @template TValue
* @template-extends \ArrayObject<TKey,TValue>
*/
class C extends \ArrayObject {
/**
* @param array<TKey,TValue> $kv
*/
public function __construct(array $kv) {
parent::__construct($kv);
}
}
$c = new C(["a" => 1]);
$i = $c->getIterator();',
[
'$c' => 'C<string, int>',
'$i' => 'ArrayIterator<string, int>',
Add some formatting
2019-03-23 19:27:54 +01:00
],
Fix #1364 - use proper types for extended getIterator calls
2019-02-22 05:01:34 +01:00
],
Fix #1411 - allow covariance on extended templates
2019-03-02 22:31:34 +01:00
'extendsParamCountDifference' => [
'<?php
/**
* @template E
* @implements \Iterator<int,E>
*/
abstract class Collection implements \Iterator {}
/**
* @param Collection<string> $collection
* @return \Iterator<int,string>
*/
function foo(Collection $collection) {
return $collection;
}',
],
Localise overridden templated param types
2019-03-14 15:11:45 +01:00
'dontInheritParamTemplatedTypeSameName' => [
'<?php
/**
* @template T
*/
interface I {
/**
* @param T $t
*/
public function add($t) : void;
}
/**
* @template T
*/
class C implements I {
/** @var array<T> */
private $t;
/**
* @param array<T> $t
*/
public function __construct(array $t) {
$this->t = $t;
}
/**
* @inheritdoc
*/
public function add($t) : void {
$this->t[] = $t;
}
}
/** @param C<string> $c */
function foo(C $c) : void {
$c->add(new stdClass);
}',
],
'dontInheritParamTemplatedTypeDifferentTemplateNames' => [
'<?php
/**
* @template T1
*/
interface I {
/**
* @param T1 $t
*/
public function add($t) : void;
}
/**
* @template T2
*/
class C implements I {
/** @var array<T2> */
private $t;
/**
* @param array<T2> $t
*/
public function __construct(array $t) {
$this->t = $t;
}
/**
* @inheritdoc
*/
public function add($t) : void {
$this->t[] = $t;
}
}
/** @param C<string> $c */
function foo(C $c) : void {
$c->add(new stdClass);
}',
],
Fix #1418 - support templated union types
2019-03-16 16:15:25 +01:00
'templateExtendsUnionType' => [
'<?php
/**
* @template T
*/
class A {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
* @template-extends A<int|string>
*/
class B extends A {}',
],
'badTemplateImplementsUnionType' => [
'<?php
/**
* @template T
*/
interface I {
/** @param T $t */
public function __construct($t);
}
/**
* @template TT
* @template-implements I<int|string>
*/
class B implements I {
/** @var int|string */
public $t;
/** @param int|string $t */
public function __construct($t) {
$this->t = $t;
}
}',
],
'badTemplateUseUnionType' => [
'<?php
/**
* @template T
*/
trait T {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
*/
class B {
/**
* @template-use T<int|string>
*/
use T;
}',
Fix errors caused by bad generic param counts Fixes #1474
2019-03-17 17:20:57 +01:00
],
'extendWithTooFewArgs' => [
'<?php
/**
* @template TKey of array-key
* @template T
* @template-extends IteratorAggregate<TKey, T>
*/
interface Collection extends IteratorAggregate
{
}
/**
* @psalm-suppress MissingTemplateParam
* @template T
* @template TKey of array-key
* @template-implements Collection<TKey>
*/
class ArrayCollection implements Collection
{
/**
* @psalm-var T[]
*/
private $elements;
/**
* @psalm-param array<T> $elements
*/
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
public function getIterator()
{
return new ArrayIterator($this->elements);
}
/**
* @psalm-suppress MissingTemplateParam
*
* @psalm-param array<T> $elements
* @psalm-return ArrayCollection<T>
*/
protected function createFrom(array $elements)
{
return new static($elements);
}
}',
Fix #1418 - support templated union types
2019-03-16 16:15:25 +01:00
],
Fix #1461 - check interfaces when analysing abstract method call
2019-03-17 19:14:03 +01:00
'abstractGetIterator' => [
'<?php
/**
* @template E
Fix #1603 - prevent invalid covariant template classes from being passed
2019-05-06 22:38:08 +02:00
* @template-extends \IteratorAggregate<int, E>
Fix #1461 - check interfaces when analysing abstract method call
2019-03-17 19:14:03 +01:00
*/
interface Collection extends \IteratorAggregate
{
/**
* @return \Iterator<int,E>
*/
public function getIterator(): \Iterator;
}
abstract class Set implements Collection {
public function forEach(callable $action): void {
$i = $this->getIterator();
foreach ($this as $bar) {
$action($bar);
}
}
Add some formatting
2019-03-23 19:27:54 +01:00
}',
Fix #1461 - check interfaces when analysing abstract method call
2019-03-17 19:14:03 +01:00
],
Fix #1489 - make sure you’re checking against known params
2019-03-21 23:28:25 +01:00
'paramInsideTemplatedFunctionShouldKnowRestriction' => [
'<?php
/**
* @template T
*/
interface Hasher {
/**
* @param T $value
*/
function hash($value): int;
}
/**
* @implements Hasher<int>
*/
class IntHasher implements Hasher {
function hash($value): int {
return $value % 10;
}
}
/**
* @implements Hasher<string>
*/
class StringHasher implements Hasher {
function hash($value): int {
return strlen($value);
}
Add some formatting
2019-03-23 19:27:54 +01:00
}',
Fix #1489 - make sure you’re checking against known params
2019-03-21 23:28:25 +01:00
],
Fix #1488 - allow inheritance when dummy template exists
2019-03-22 21:29:30 +01:00
'implementsAndExtendsWithTemplate' => [
'<?php
/**
* @template TReal
*/
interface Collection
{
/**
* @return array<TReal>
*/
function toArray();
}
/**
* @template TDummy
* @implements Collection<string>
*/
class IntCollection implements Collection
{
/** @param TDummy $t */
public function __construct($t) {
}
public function toArray() {
return ["foo"];
}
}',
],
Fix #1498 - use template types from parent function
2019-03-25 16:25:43 +01:00
'templateNotExtendedButSignatureInherited' => [
'<?php
class Base {
/**
* @template T
* @param T $x
* @return T
*/
function example($x) {
return $x;
}
}
class Child extends Base {
function example($x) {
return $x;
}
}
ord((new Child())->example("str"));'
],
Do not override parent return type
2019-03-28 15:43:49 +01:00
'allowWiderParentType' => [
'<?php
/**
* @template T
*/
abstract class Stringer {
/**
* @param T $t
*/
public static function getString($t, object $o = null) : string {
return "hello";
}
}
class A {}
/**
* @template-extends Stringer<A>
*/
class AStringer extends Stringer {
public static function getString($t, object $o = null) : string {
if ($o) {
return parent::getString($o);
}
return "a";
}
}'
],
Fix #1513 - use correct param types when examining abstract trait methods
2019-03-29 03:47:17 +01:00
'allowTraitExtendAndImplementWithExplicitParamType' => [
'<?php
/**
* @template T
*/
trait ValueObjectTrait
{
/**
* @psalm-var ?T
*/
protected $value;
/**
* @psalm-param T $value
*
* @param $value
*/
private function setValue($value): void {
$this->validate($value);
$this->value = $value;
}
/**
* @psalm-param T $value
*
* @param $value
*/
abstract protected function validate($value): void;
}
final class StringValidator {
/**
* @template-use ValueObjectTrait<string>
*/
use ValueObjectTrait;
/**
* @param string $value
*/
protected function validate($value): void
{
if (strlen($value) > 30) {
throw new \Exception("bad");
}
}
}',
],
'allowTraitExtendAndImplementWithoutExplicitParamType' => [
'<?php
/**
* @template T
*/
trait ValueObjectTrait
{
/**
* @psalm-var ?T
*/
protected $value;
/**
* @psalm-param T $value
*
* @param $value
*/
private function setValue($value): void {
$this->validate($value);
$this->value = $value;
}
/**
* @psalm-param T $value
*
* @param $value
*/
abstract protected function validate($value): void;
}
final class StringValidator {
/**
* @template-use ValueObjectTrait<string>
*/
use ValueObjectTrait;
protected function validate($value): void
{
if (strlen($value) > 30) {
throw new \Exception("bad");
}
}
}',
],
Fix #1603 - prevent invalid covariant template classes from being passed
2019-05-06 22:38:08 +02:00
'allowPassingToCovariantCollection' => [
'<?php
abstract class Animal {
abstract public function getSound() : string;
}
class Dog extends Animal {
public function getSound() : string {
return "Woof!";
}
}
class Cat extends Animal {
public function getSound() : string {
return "Miaow";
}
}
/**
* @template-covariant TValue
* @template-extends \ArrayObject<int,TValue>
*/
class Collection extends \ArrayObject {
/**
* @param array<int,TValue> $kv
*/
public function __construct(array $kv) {
parent::__construct($kv);
}
}
/**
* @param Collection<Animal> $list
*/
function getSounds(Traversable $list) : void {
foreach ($list as $l) {
$l->getSound();
}
}
/**
* @param Collection<Dog> $list
*/
function takesDogList(Collection $list) : void {
getSounds($list); // this probably should not be an error
}'
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
];
}
/**
More provider typing
2019-03-01 21:55:20 +01:00
* @return iterable<string,array{string,error_message:string,2?:string[],3?:bool,4?:string}>
Split out @extends template test
2019-01-26 04:33:42 +01:00
*/
public function providerInvalidCodeParse()
{
return [
'extendsWithUnfulfilledNonTemplate' => [
'<?php
namespace A;
/**
* @template T
*/
abstract class Container
{
/**
* @return T
*/
public abstract function getItem();
}
class Foo
{
}
class Bar
{
}
/**
* @template-extends Container<Bar>
*/
class BarContainer extends Container
{
/**
* @return Foo
*/
public function getItem()
{
return new Foo();
}
}',
Fix position of invalid param
2019-02-27 22:00:44 +01:00
'error_message' => 'ImplementedReturnTypeMismatch - src' . DIRECTORY_SEPARATOR . 'somefile.php:29:36 - The return type \'A\Bar\' for',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
'extendTemplateAndDoesNotOverrideWithWrongArg' => [
'<?php
/**
* @template T as array-key
*/
abstract class User
{
/**
* @var T
*/
private $id;
/**
* @param T $id
*/
public function __construct($id)
{
$this->id = $id;
}
/**
* @return T
*/
public function getID()
{
return $this->id;
}
}
/**
* @template-extends User<int>
*/
class AppUser extends User {}
$au = new AppUser("string");',
'error_message' => 'InvalidScalarArgument',
],
'extendsTwiceDifferentNameBrokenChain' => [
'<?php
/**
* @template T1
*/
class Container
{
/**
* @var T1
*/
private $v;
/**
* @param T1 $v
*/
public function __construct($v)
{
$this->v = $v;
}
/**
* @return T1
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template T2
*/
class ChildContainer extends Container {}
/**
* @template T3
* @template-extends ChildContainer<T3>
*/
class GrandChildContainer extends ChildContainer {}
$fc = new GrandChildContainer(5);
$a = $fc->getValue();',
'error_message' => 'MixedAssignment',
],
'extendsTwiceSameNameBrokenChain' => [
'<?php
/**
* @template T
*/
class Container
{
/**
* @var T
*/
private $v;
/**
* @param T $v
*/
public function __construct($v)
{
$this->v = $v;
}
/**
* @return T
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template T
*/
class ChildContainer extends Container {}
/**
* @template T
* @template-extends ChildContainer<T>
*/
class GrandChildContainer extends ChildContainer {}
$fc = new GrandChildContainer(5);
$a = $fc->getValue();',
'error_message' => 'MixedAssignment',
],
'extendsTwiceSameNameLastDoesNotExtend' => [
'<?php
/**
* @template T
*/
class Container
{
/**
* @var T
*/
private $v;
/**
* @param T $v
*/
public function __construct($v)
{
$this->v = $v;
}
/**
* @return T
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template T
* @template-extends Container<T>
*/
class ChildContainer extends Container {}
/**
* @template T
*/
class GrandChildContainer extends ChildContainer {}
$fc = new GrandChildContainer(5);
$a = $fc->getValue();',
'error_message' => 'MixedAssignment',
],
'mismatchingTypesAfterExtends' => [
'<?php
class Foo {}
class Bar {}
/**
Restrict template-extends to actual extends
2019-01-28 03:00:27 +01:00
* @implements IteratorAggregate<int, Foo>
Split out @extends template test
2019-01-26 04:33:42 +01:00
*/
class SomeIterator implements IteratorAggregate
{
/**
* @return Traversable<int, Bar>
*/
public function getIterator()
{
yield new Bar;
}
}',
'error_message' => 'ImplementedReturnTypeMismatch',
],
'mismatchingTypesAfterExtendsInherit' => [
'<?php
class Foo {}
class Bar {}
/**
Restrict template-extends to actual extends
2019-01-28 03:00:27 +01:00
* @implements IteratorAggregate<int, Foo>
Split out @extends template test
2019-01-26 04:33:42 +01:00
*/
class SomeIterator implements IteratorAggregate
{
public function getIterator()
{
yield new Bar;
}
}',
'error_message' => 'InvalidReturnType',
],
'badTemplateExtends' => [
'<?php
/**
* @template T
*/
class A {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
* @template-extends A<Z>
*/
class B extends A {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'UndefinedClass',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
'badTemplateExtendsInt' => [
'<?php
/**
* @template T
*/
class A {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
* @template-extends int
*/
class B extends A {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateExtendsBadFormat' => [
'<?php
/**
* @template T
*/
class A {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
* @template-extends A< >
*/
class B extends A {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateImplementsShouldBeExtends' => [
'<?php
/**
* @template T
*/
class A {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
* @template-implements A<int>
*/
class B extends A {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateImplements' => [
'<?php
/**
* @template T
*/
interface I {
/** @param T $t */
public function __construct($t);
}
/**
* @template TT
* @template-implements I<Z>
*/
class B implements I {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'UndefinedClass',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateImplementsInt' => [
'<?php
/**
* @template T
*/
interface I {
/** @param T $t */
public function __construct($t);
}
/**
* @template TT
* @template-implements int
*/
class B implements I {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateImplementsBadFormat' => [
'<?php
/**
* @template T
*/
interface I {
/** @param T $t */
public function __construct($t);
}
/**
* @template TT
* @template-implements I< >
*/
class B implements I {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateExtendsShouldBeImplements' => [
'<?php
/**
* @template T
*/
interface I {
/** @param T $t */
public function __construct($t);
}
/**
* @template TT
* @template-extends I<string>
*/
class B implements I {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateUse' => [
'<?php
/**
* @template T
*/
trait T {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
*/
class B {
/**
* @template-use T<Z>
*/
use T;
}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'UndefinedClass',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateUseBadFormat' => [
'<?php
/**
* @template T
*/
trait T {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
*/
class B {
/**
* @template-use T< >
*/
use T;
}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateUseInt' => [
'<?php
/**
* @template T
*/
trait T {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
*/
class B {
/**
* @template-use int
*/
use T;
}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
'badTemplateExtendsShouldBeUse' => [
'<?php
/**
* @template T
*/
trait T {
/** @var T */
public $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
}
/**
* @template TT
*/
class B {
/**
* @template-extends T<int>
*/
use T;
}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidDocblock',
Fix template extension in grandchildren
2019-01-28 22:56:42 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
'templateExtendsWithoutAllParams' => [
'<?php
/**
* @template T
* @template V
* @template U
*/
class A {}
/**
* @extends A<int>
*/
class CC extends A {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'MissingTemplateParam',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
Fix #1072 - add support for @use SomeTrait<T>
2019-01-28 05:12:40 +01:00
'templateImplementsWithoutAllParams' => [
'<?php
/**
* @template T
* @template V
* @template U
*/
interface I {}
/**
* @implements I<int>
*/
class CC implements I {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'MissingTemplateParam',
Fix #1072 - add support for @use SomeTrait<T>
2019-01-28 05:12:40 +01:00
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
'extendsTemplateButLikeBadly' => [
'<?php
/**
* @template T as object
*/
class Base {
/** @param T $_o */
public function __construct($_o) {}
/**
* @return T
* @psalm-suppress InvalidReturnType
*/
public function t() {}
}
/** @template-extends Base<int> */
class SpecializedByInheritance extends Base {}',
Add some formatting
2019-03-23 19:27:54 +01:00
'error_message' => 'InvalidTemplateParam',
Split out @extends template test
2019-01-26 04:33:42 +01:00
],
Localise overridden templated param types
2019-03-14 15:11:45 +01:00
'doInheritParamTemplatedTypeSameName' => [
'<?php
/**
* @template T
*/
interface I {
/**
* @param T $t
*/
public function add($t) : void;
}
/**
* @template T
* @template-implements I<T>
*/
class C implements I {
/** @var array<T> */
private $t;
/**
* @param array<T> $t
*/
public function __construct(array $t) {
$this->t = $t;
}
/**
* @inheritdoc
*/
public function add($t) : void {
$this->t[] = $t;
}
}
/** @param C<string> $c */
function foo(C $c) : void {
$c->add(new stdClass);
}',
'error_message' => 'InvalidArgument',
],
'doInheritParamTemplatedTypeDifferentTemplateNames' => [
'<?php
/**
* @template T1
*/
interface I {
/**
* @param T1 $t
*/
public function add($t) : void;
}
/**
* @template T2
* @template-implements I<T2>
*/
class C implements I {
/** @var array<T2> */
private $t;
/**
* @param array<T2> $t
*/
public function __construct(array $t) {
$this->t = $t;
}
/**
* @inheritdoc
*/
public function add($t) : void {
$this->t[] = $t;
}
}
/** @param C<string> $c */
function foo(C $c) : void {
$c->add(new stdClass);
}',
'error_message' => 'InvalidArgument',
],
Catch object passed to array-key
2019-03-18 23:31:30 +01:00
'invalidArgumentForInheritedImplementedInterfaceMethodParam' => [
'<?php
/**
* @template T
*/
interface I1 {
/** @param T $t */
public function takeT($t) : void;
}
/**
* @template T as array-key
* @template-extends I1<T>
*/
interface I2 extends I1 {}
/**
* @template T as array-key
* @template-implements I2<T>
*/
class C implements I2 {
/** @var T */
private $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
public function takeT($t) : void {}
}
/** @param C<string> $c */
function bar(C $c) : void {
$c->takeT(new stdClass);
}',
'error_message' => 'InvalidArgument',
],
Fix #1489 - make sure you’re checking against known params
2019-03-21 23:28:25 +01:00
'implementsAndExtendsWithoutTemplate' => [
'<?php
/**
* @template E
*/
interface Collection
{
/**
* @return array<E>
*/
function toArray();
}
/**
* @implements Collection<int>
*/
class IntCollection implements Collection
{
function toArray() {
return ["foo"];
}
}',
'error_message' => 'InvalidReturnType',
],
Fix #1488 - allow inheritance when dummy template exists
2019-03-22 21:29:30 +01:00
'implementsAndExtendsWithTemplate' => [
Fix #1489 - make sure you’re checking against known params
2019-03-21 23:28:25 +01:00
'<?php
/**
* @template TReal
*/
interface Collection
{
Refactor storage of template names to prevent clashes
2019-03-22 20:59:10 +01:00
/**
* @return array<TReal>
*/
function toArray();
Fix #1489 - make sure you’re checking against known params
2019-03-21 23:28:25 +01:00
}
/**
* @template TDummy
* @implements Collection<int>
*/
class IntCollection implements Collection
{
Fix #1488 - allow inheritance when dummy template exists
2019-03-22 21:29:30 +01:00
/** @param TDummy $t */
public function __construct($t) {
}
public function toArray() {
Fix #1489 - make sure you’re checking against known params
2019-03-21 23:28:25 +01:00
return ["foo"];
}
}',
'error_message' => 'InvalidReturnType',
],
Fix #1498 - use template types from parent function
2019-03-25 16:25:43 +01:00
'implementsChildClassWithNonExtendedTemplate' => [
'<?php
/**
* @template T
*/
class Base {
/** @var T */
private $t;
/** @param T $t */
public function __construct($t) {
$this->t = $t;
}
/**
* @param T $x
* @return T
*/
function example($x) {
return $x;
}
}
class Child extends Base {
function example($x) {
return $x;
}
}
/** @param Child $c */
function bar(Child $c) : void {
ord($c->example("boris"));
}',
'error_message' => 'MixedArgument - src/somefile.php:31:29 - Argument 1 of ord cannot be mixed, expecting string'
],
Split out @extends template test
2019-01-26 04:33:42 +01:00
];
}
}
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