,error_levels?:string[]}>
*/
public function providerValidCodeParse(): iterable
{
return [
'cachingIterator' => [
'hasNext();
$key = $decoratorIterator->key();
$value = $decoratorIterator->current();
',
'assertions' => [
'$key' => 'int',
'$value' => 'string',
'$next' => 'bool',
],
],
'infiniteIterator' => [
'key();
$value = $decoratorIterator->current();
',
'assertions' => [
'$key' => 'int',
'$value' => 'string',
],
],
'limitIterator' => [
'key();
$value = $decoratorIterator->current();
',
'assertions' => [
'$key' => 'int',
'$value' => 'string',
],
],
'callbackFilterIterator' => [
'key();
$value = $decoratorIterator->current();
',
'assertions' => [
'$key' => 'int',
'$value' => 'string',
],
],
'noRewindIterator' => [
'key();
$value = $decoratorIterator->current();
',
'assertions' => [
'$key' => 'int',
'$value' => 'string',
],
],
'classTemplate' => [
' $T
*/
public function __construct(string $T) {
$this->T = $T;
}
/**
* @return T
* @psalm-suppress MixedMethodCall
*/
public function bar() {
$t = $this->T;
return new $t();
}
}
$at = "A";
/**
* @var Foo
* @psalm-suppress ArgumentTypeCoercion
*/
$afoo = new Foo($at);
$afoo_bar = $afoo->bar();
$bfoo = new Foo(B::class);
$bfoo_bar = $bfoo->bar();
// this shouldn’t cause a problem as it’s a docbblock type
if (!($bfoo_bar instanceof B)) {}
$c = C::class;
$cfoo = new Foo($c);
$cfoo_bar = $cfoo->bar();',
'assertions' => [
'$afoo' => 'Foo',
'$afoo_bar' => 'A',
'$bfoo' => 'Foo',
'$bfoo_bar' => 'B',
'$cfoo' => 'Foo',
'$cfoo_bar' => 'C',
],
'error_levels' => [
'MixedReturnStatement',
'LessSpecificReturnStatement',
'DocblockTypeContradiction',
],
],
'classTemplateSelfs' => [
' */
public $T;
/**
* @param class-string $T
*/
public function __construct(string $T) {
$this->T = $T;
}
/**
* @return T
* @psalm-suppress MixedMethodCall
*/
public function bar() {
$t = $this->T;
return new $t();
}
}
class E {
/**
* @return Foo
*/
public static function getFoo() {
return new Foo(__CLASS__);
}
/**
* @return Foo
*/
public static function getFoo2() {
return new Foo(self::class);
}
/**
* @return Foo
*/
public static function getFoo3() {
return new Foo(static::class);
}
}
class G extends E {}
$efoo = E::getFoo();
$efoo2 = E::getFoo2();
$efoo3 = E::getFoo3();
$gfoo = G::getFoo();
$gfoo2 = G::getFoo2();
$gfoo3 = G::getFoo3();',
'assertions' => [
'$efoo' => 'Foo',
'$efoo2' => 'Foo',
'$efoo3' => 'Foo',
'$gfoo' => 'Foo',
'$gfoo2' => 'Foo',
'$gfoo3' => 'Foo',
],
'error_levels' => [
'LessSpecificReturnStatement',
'RedundantConditionGivenDocblockType',
],
],
'classTemplateExternalClasses' => [
' $T
*/
public function __construct(string $T) {
$this->T = $T;
}
/**
* @return T
* @psalm-suppress MixedMethodCall
*/
public function bar() {
$t = $this->T;
return new $t();
}
}
$efoo = new Foo(\Exception::class);
$efoo_bar = $efoo->bar();
$ffoo = new Foo(\LogicException::class);
$ffoo_bar = $ffoo->bar();',
'assertions' => [
'$efoo' => 'Foo',
'$efoo_bar' => 'Exception',
'$ffoo' => 'Foo',
'$ffoo_bar' => 'LogicException',
],
'error_levels' => ['LessSpecificReturnStatement'],
],
'classTemplateContainerSimpleCall' => [
'obj = $obj;
}
/**
* @return T
*/
public function bar() {
return $this->obj;
}
}
$afoo = new Foo(new A());
$afoo_bar = $afoo->bar();',
'assertions' => [
'$afoo' => 'Foo',
'$afoo_bar' => 'A',
],
],
'classTemplateContainerThisCall' => [
'obj = $obj;
}
/**
* @return T
*/
public function bar() {
return $this->obj;
}
/**
* @return T
*/
public function bat() {
return $this->bar();
}
public function __toString(): string {
return "hello " . $this->obj;
}
}',
[],
'error_levels' => ['MixedOperand'],
],
'validPsalmTemplatedClassType' => [
'bar(new A());',
],
'intersectionTemplatedTypes' => [
' */
private $data;
/** @psalm-param iterable $data */
public function __construct(iterable $data) {
$this->data = $data;
}
}
class Item {}
/** @psalm-param Collection- $c */
function takesCollectionOfItems(Collection $c): void {}
/** @psalm-var iterable
- $data2 */
$data2 = [];
takesCollectionOfItems(new Collection($data2));
/** @psalm-var iterable
- &Countable $data */
$data = [];
takesCollectionOfItems(new Collection($data));',
],
'repeatedCall' => [
' */
private $data;
/** @param array $data */
public function __construct(array $data) {
$this->data = $data;
}
/**
* @template T
* @param Closure(TValue):T $func
* @return ArrayCollection
*/
public function map(Closure $func) {
return new static(array_map($func, $this->data));
}
}
class Item {}
/**
* @param ArrayCollection $i
*/
function takesCollectionOfItems(ArrayCollection $i): void {}
$c = new ArrayCollection([ new Item ]);
takesCollectionOfItems($c);
takesCollectionOfItems($c->map(function(Item $i): Item { return $i;}));
takesCollectionOfItems($c->map(function(Item $i): Item { return $i;}));',
],
'noRepeatedTypeException' => [
'
*/
private $type;
/** @var array */
private $items;
/**
* @param class-string $type
*/
public function __construct(string $type)
{
if (!in_array($type, [A::class, B::class], true)) {
throw new \InvalidArgumentException;
}
$this->type = $type;
$this->items = [];
}
/** @param T $item */
public function add($item): void
{
$this->items[] = $item;
}
}
class FooFacade
{
/**
* @template T as object
* @param T $item
*/
public function add(object $item): void
{
$foo = $this->ensureFoo([$item]);
$foo->add($item);
}
/**
* @template T as object
* @param array $items
* @return Foo
*/
private function ensureFoo(array $items): Foo
{
/** @var class-string */
$type = $items[0] instanceof A ? A::class : B::class;
return new Foo($type);
}
}
class A {}
class B {}',
],
'collectionOfClosure' => [
'
*/
public function filter(Closure $p) {
return $this;
}
}
class I {}
/** @var Collection> $c */
$c = new Collection;
$c->filter(
/** @param Collection $elt */
function(Collection $elt): bool { return (bool) rand(0,1); }
);
$c->filter(
/** @param Collection $elt */
function(Collection $elt): bool { return true; }
);',
],
'templatedInterfaceIteration' => [
' */
public function getIterator();
}
class Collection implements ICollection {
/** @var array */
private $data;
public function __construct(array $data) {
$this->data = $data;
}
public function getIterator(): \Traversable {
return new \ArrayIterator($this->data);
}
}
/** @var ICollection */
$c = new Collection(["a" => 1]);
foreach ($c as $k => $v) { atan($v); strlen($k); }',
],
'allowTemplatedIntersectionToExtend' => [
'bar = $bar;
}
/**
* @return T&Foo
*/
public function makeFoo()
{
return $this->bar;
}
}',
],
'restrictTemplateInputWithTClassGoodInput' => [
' */
private $items;
/**
* @param T::class $type
*/
public function __construct(string $type)
{
if (!in_array($type, [A::class, B::class], true)) {
throw new \InvalidArgumentException;
}
$this->type = $type;
$this->items = [];
}
/** @param T $item */
public function add($item): void
{
$this->items[] = $item;
}
}
class A {}
class B {}
$foo = new Foo(A::class);
$foo->add(new A);',
],
'classTemplateFunctionImplementsInterface' => [
't = $t;
}
/**
* @return T
*/
public function getFoo()
{
return $this->t;
}
}
function passFoo(Foo $f) : Foo {
return (new FooGetter($f))->getFoo();
}',
],
'getPropertyOnClass' => [
'
*/
private $type;
/**
* @param class-string $type
*/
public function __construct(string $type) {
$this->type = $type;
}
/**
* @return class-string
*/
public function getType()
{
return $this->type;
}
/**
* @param T $object
*/
public function bar(Foo $object) : void
{
if ($this->getType() !== get_class($object)) {
return;
}
echo $object->id;
}
}
class FooChild extends Foo {}
/** @param Collection $c */
function handleCollectionOfFoo(Collection $c) : void {
if ($c->getType() === FooChild::class) {}
}',
],
'getMagicPropertyOnClass' => [
'x;
$b_y = $b->y;
',
'assertions' => [
'$b_x' => 'A|null',
'$b_y' => 'A|null',
],
],
'getMagicPropertyOnThis' => [
'x instanceof X) {}
if ($this->y instanceof X) {}
}
}
',
],
'getEquateClass' => [
'obj = $obj;
}
/**
* @param T $object
*/
public function bar(Foo $object) : void
{
if ($this->obj === $object) {}
}
}',
],
'allowComparisonGetTypeResult' => [
'
*/
private $type;
/**
* @param class-string $type
*/
public function __construct(string $type) {
$this->type = $type;
}
/**
* @return class-string|null
*/
public function getType()
{
return $this->type;
}
}
function foo(Collection $c) : void {
$val = $c->getType();
if (!$val) {}
if ($val) {}
}',
],
'mixedTemplatedParamOutWithNoExtendedTemplate' => [
'v = $v;
}
/**
* @return TValue
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template TKey
* @template 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',
'$b' => 'mixed',
],
'error_levels' => ['MixedAssignment'],
],
'mixedTemplatedParamOutDifferentParamName' => [
'v = $v;
}
/**
* @return TValue
*/
public function getValue()
{
return $this->v;
}
}
/**
* @template TKey
* @template 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',
'$b' => 'mixed',
],
'error_levels' => ['MixedAssignment'],
],
'doesntExtendTemplateAndDoesNotOverride' => [
'id = $id;
}
/**
* @return T
*/
public function getID()
{
return $this->id;
}
}
class AppUser extends User {}
$au = new AppUser(-1);
$id = $au->getId();',
[
'$au' => 'AppUser',
'$id' => 'array-key',
],
],
'templateTKeyedArrayValues' => [
',1:Collection}
* @psalm-suppress InvalidReturnType
*/
public function partition() {}
}
/** @var Collection $c */
$c = new Collection;
[$partA, $partB] = $c->partition();',
[
'$partA' => 'Collection',
'$partB' => 'Collection',
],
],
'doublyLinkedListConstructor' => [
'add(5, "hello");
$list->add("hello", 5);
/** @var SplDoublyLinkedList */
$templated_list = new SplDoublyLinkedList();
$templated_list->add(5, "hello");
$a = $templated_list->bottom();',
[
'$a' => 'string',
],
],
'templateDefaultSimpleString' => [
't = $t;
}
}
$c = new C();',
'assertions' => [
'$c===' => 'C',
],
],
'SKIPPED-templateDefaultConstant' => [
't = $t;
}
}
$e = new E();',
'assertions' => [
'$e===' => 'E',
],
],
'SKIPPED-templateDefaultClassMemberConstant' => [
't = $t;
}
}
$e = new E();',
'assertions' => [
'$e===' => 'E',
],
],
'templateDefaultClassConstant' => [
' */
public $t;
/**
* @param class-string $t
*/
function __construct(string $t = D::class) {
$this->t = $t;
}
}
$e = new E();',
'assertions' => [
'$e===' => 'E',
],
],
'allowNullablePropertyAssignment' => [
' $foo
*/
public function __construct(I $foo) {
$this->bar = $foo->get();
}
}',
],
'reflectionClass' => [
' $name
*/
class CustomReflectionClass {
/**
* @var class-string
*/
public $name;
/**
* @param T|class-string $argument
*/
public function __construct($argument) {
if (is_object($argument)) {
$this->name = get_class($argument);
} else {
$this->name = $argument;
}
}
}
/**
* @template T as object
* @param class-string $className
* @return CustomReflectionClass
*/
function getTypeOf(string $className) {
return new CustomReflectionClass($className);
}',
],
'psalmReflectionClass' => [
' $name
*/
class CustomReflectionClass {
/**
* @var class-string
*/
public $name;
/**
* @param T|class-string $argument
*/
public function __construct($argument) {
if (is_object($argument)) {
$this->name = get_class($argument);
} else {
$this->name = $argument;
}
}
}
/**
* @template T as object
* @param class-string $className
* @return CustomReflectionClass
*/
function getTypeOf(string $className) {
return new CustomReflectionClass($className);
}',
],
'ignoreTooManyGenericObjectArgs' => [
't = $t;
}
}
/** @param C $c */
function takesC(C $c) : void {}
/**
* @psalm-suppress TooManyTemplateParams
* @var C
*/
$c = new C(5);
takesC($c);',
],
'classTemplateUnionType' => [
' $c */
function foo(C $c) : void {}
/** @param C $c */
function bar(C $c) : void {}',
],
'unionAsTypeReturnType' => [
'
*/
public function filter(Closure $p);
}',
],
'converterObject' => [
' $records
*/
public $records;
/**
* @param array $records
*/
public function __construct(array $records) {
$this->records = $records;
}
/**
* @template Q2 as object
*
* @param Q2 $obj2
*
* @return array
*/
private function appender(object $obj2): array
{
$arr = [];
foreach ($this->records as $key => $obj) {
if (rand(0, 1)) {
$obj = $obj2;
}
$arr[$key] = $obj;
}
return $arr;
}
/**
* @template Q1 as object
*
* @param Q1 $obj
*
* @return array
*/
public function appendProperty(object $obj): array
{
return $this->appender($obj);
}
}',
],
'converterClassString' => [
' $records
*/
public $records;
/**
* @param array $records
*/
public function __construct(array $records) {
$this->records = $records;
}
/**
* @template Q as object
*
* @param class-string
$obj
*
* @return array
*/
public function appendProperty(string $obj): array
{
return $this->appender($obj);
}
/**
* @template Q as object
*
* @param class-string $obj2
*
* @return array
*
* @psalm-suppress MixedMethodCall
*/
private function appender(string $obj2): array
{
$arr = [];
foreach ($this->records as $key => $obj) {
if (rand(0, 1)) {
$obj = new $obj2;
}
$arr[$key] = $obj;
}
return $arr;
}
}',
],
'allowTemplateReconciliation' => [
' [
'
*/
private $elements;
/**
* @param array $elements
*/
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
}
/** @psalm-suppress MixedArgument */
$c = new ArrayCollection($_GET["a"]);',
[
'$c' => 'ArrayCollection',
],
],
'doNotCombineTypes' => [
't = $t;
}
/**
* @return T
*/
public function get() {
return $this->t;
}
}
/**
* @param C $a
* @param C $b
* @return C|C
*/
function randomCollection(C $a, C $b) : C {
if (rand(0, 1)) {
return $a;
}
return $b;
}
$random_collection = randomCollection(new C(new A), new C(new B));
$a_or_b = $random_collection->get();',
[
'$random_collection' => 'C|C',
'$a_or_b' => 'A|B',
],
],
'inferClosureParamTypeFromContext' => [
'
*/
function map(callable $action): self;
}
/**
* @template T
*/
interface Optional {
/**
* @return T
*/
function get();
}
/**
* @param Collection> $collection
* @return Collection
*/
function expandOptions(Collection $collection) : Collection {
return $collection->map(
function ($optional) {
return $optional->get();
}
);
}',
],
'templateEmptyParamCoercion' => [
' */
private $data;
/** @psalm-param iterable $data */
public function __construct(iterable $data = []) {
$this->data = $data;
}
}
class Item {}
/** @psalm-param Collection- $c */
function takesCollectionOfItems(Collection $c): void {}
takesCollectionOfItems(new Collection());
takesCollectionOfItems(new Collection([]));',
],
'templatedGet' => [
' */
protected $data = [];
/** @param array $data */
public function __construct(array $data) {
$this->data = $data;
}
/** @param P $name */
public function __isset(string $name): bool {
return isset($this->data[$name]);
}
/**
* @param P $name
* @return V
*/
public function __get(string $name) {
return $this->data[$name];
}
}
$p = new PropertyBag(["a" => "data for a", "b" => "data for b"]);
$a = $p->a;',
[
'$a' => 'string',
],
],
'templateAsArray' => [
'
*/
abstract class Foo {
/**
* @var DATA
*/
protected $data;
/**
* @param DATA $data
*/
public function __construct(array $data) {
$this->data = $data;
}
/**
* @return scalar|array|object|null
*/
public function __get(string $property) {
return isset($this->data[$property]) ? $this->data[$property] : null;
}
/**
* @param scalar|array|object|null $value
*/
public function __set(string $property, $value) {
$this->data[$property] = $value;
}
}',
],
'keyOfClassTemplateAcceptingIndexedAccess' => [
'data = $data;
}
/**
* @template K as key-of
*
* @param K $property
* @param TData[K] $value
*/
public function __set(string $property, $value) {
$this->data[$property] = $value;
}
}',
],
'keyOfClassTemplateReturningIndexedAccess' => [
'data = $data;
}
/**
* @template K as key-of
*
* @param K $property
*
* @return TData[K]
*/
public function __get(string $property) {
return $this->data[$property];
}
}',
],
'SKIPPED-templatedInterfaceIntersectionFirst' => [
'&IChild */
function makeConcrete() : IChild {
return new class() implements IChild {
public function foo() {
return new C();
}
};
}
$a = makeConcrete()->foo();',
[
'$a' => 'C',
],
],
'templatedInterfaceIntersectionSecond' => [
' */
function makeConcrete() : IChild {
return new class() implements IChild {
public function foo() {
return new C();
}
};
}
$a = makeConcrete()->foo();',
[
'$a' => 'C',
],
],
'returnTemplateIntersectionGenericObjectAndTemplate' => [
' $className
*
* @psalm-return T&I
*/
function makeConcrete(string $className) : object
{
/** @var T&I */
return new class() extends C implements I {
public function getMe() {
return $this;
}
};
}
$a = makeConcrete(C::class);',
[
'$a' => 'C&I',
],
],
'keyOfArrayGet' => [
'
*/
abstract class Foo {
/**
* @var DATA
*/
protected $data;
/**
* @param DATA $data
*/
public function __construct(array $data) {
$this->data = $data;
}
/**
* @template K as key-of
*
* @param K $property
*
* @return DATA[K]
*/
public function __get(string $property) {
return $this->data[$property];
}
}',
],
'keyOfArrayRandomKey' => [
'
*/
abstract class Foo {
/**
* @var DATA
*/
protected $data;
/**
* @param DATA $data
*/
public function __construct(array $data) {
$this->data = $data;
}
/**
* @return key-of
*/
abstract public function getRandomKey() : string;
}',
],
'allowBoolTemplateCoercion' => [
' */
function test(): TestPromise {
return new TestPromise(true);
}',
],
'classTemplatedPropertyEmptyAssignment' => [
' */
private $FooArray;
public function __construct() {
$this->FooArray = new Foo(function(): array { return []; });
}
}',
],
'classTemplatedPropertyAssignmentWithMoreSpecificArray' => [
' */
private $FooArray;
public function __construct() {
$this->FooArray = new Foo(function(): array { return []; });
}
}',
],
'insideClosureVarTemplate' => [
' [
' $a
* @psalm-return ReflectionClass
*/
public function reflection(string $a) {
return new ReflectionClass($a);
}
}',
],
'anonymousClassMustNotBreakParentTemplate' => [
'value = $val;
new class extends Foo {};
}
/** @psalm-return ?T */
public function get() {
return $this->value;
}
}'
],
'templatedInvoke' => [
'value = $val;
}
/** @return T */
public function get() {
return $this->value;
}
/**
* @param T $val
* @return Foo
*/
public function __invoke($val) {
return new static($val);
}
/**
* @param T $val
* @return Foo
*/
public function create($val) {
return new static($val);
}
}
function bar(string $s) : string {
$foo = new Foo($s);
$bar = $foo($s);
return $bar->get();
}'
],
'templatedLiteralStringReplacement' => [
'value = $value;
}
/**
* @psalm-return T
*/
public function value() {
return $this->value;
}
}
/**
* @template T
* @psalm-param T $value
* @psalm-return Value
*/
function value($value): Value {
return new Value($value);
}
/**
* @psalm-param Value $value
*/
function client($value): void {}
client(value("awdawd"));'
],
'yieldFromGenericObjectNotExtendingIterator' => [
'
*/
public Foo $vector;
/**
* @param Foo $v
*/
public function __construct(Foo $v) {
$this->vector = $v;
}
public function getIterator(): Iterator
{
yield from $this->vector;
}
}',
[],
['TooManyTemplateParams']
],
'coerceEmptyArrayToGeneral' => [
' */
private $FooArray;
public function __construct() {
$this->FooArray = new Foo(function(string $s): array {
/** @psalm-suppress MixedAssignment */
$json = \json_decode($s, true);
if (! \is_array($json)) {
return [];
}
return $json;
});
takesFooArray($this->FooArray);
}
}
/** @param Foo $_ */
function takesFooArray($_): void {}',
],
'allowListAcceptance' => [
' */
public $values;
/** @param list $values */
function __construct(array $values)
{
$this->values = $values;
}
}
/** @return Collection */
function makeStringCollection()
{
return new Collection(getStringList()); // gets typed as Collection for some reason
}
/** @return list */
function getStringList(): array
{
return ["foo", "baz"];
}'
],
'allowListAcceptanceIntoArray' => [
' */
public $values;
/** @param array $values */
function __construct(array $values)
{
$this->values = $values;
}
}
/** @return Collection */
function makeStringCollection()
{
return new Collection(getStringList()); // gets typed as Collection for some reason
}
/** @return list */
function getStringList(): array
{
return ["foo", "baz"];
}'
],
'allowInternalNullCheck' => [
'parent = $parent;
}
public function hasNoParent() : bool
{
return $this->parent === null; // So TP does contain null
}
}'
],
'useMethodWithExistingGenericParam' => [
'
*/
public function filter(Closure $p);
}
/**
* @param Collection $c
* @psalm-return Collection
*/
function filter(Collection $c, string $name) {
return $c->filter(
function (Bar $f) use ($name) {
return $f->getFoo() === "foo";
}
);
}'
],
'unboundVariableIsEmptyInInstanceMethod' => [
'collectInstance("a");'
],
'unboundVariableIsEmptyInStaticMethod' => [
' [
' $x
*
* @return array
*/
function iterableToArray (iterable $x): array {
if (is_array($x)) {
return $x;
}
else {
return iterator_to_array($x);
}
}
/**
* @param Traversable $t
* @return array
*/
function withParams(Traversable $t) : array {
return iterableToArray($t);
}',
],
'templateStaticWithParam' => [
' */
private $elements;
/**
* @param list $elements
*/
public function __construct(array $elements) {
$this->elements = $elements;
}
/**
* @template U
* @param callable(T=):U $callback
* @return static
*/
public function map(callable $callback) {
return new static(array_values(array_map($callback, $this->elements)));
}
}
/** @param ArrayCollection $ints */
function takesInts(ArrayCollection $ints) :void {}
takesInts((new ArrayCollection([ "a", "bc" ]))->map("strlen"));'
],
'weakReferenceIsTyped' => [
'get();
',
[ '$ex' => 'Exception|null' ],
],
'weakReferenceIsCovariant' => [
' $_ref */
function acceptsThrowableRef(WeakReference $_ref): void {}
acceptsThrowableRef(WeakReference::create(new Exception));
'
],
'mapTypeParams' => [
' */
public $arr;
/** @param array $arr */
function __construct(array $arr) {
$this->arr = $arr;
}
}
/**
* @template TInputKey as array-key
* @template TInputValue
* @param Map $map
* @return Map
*/
function copyMapUsingProperty(Map $map): Map {
return new Map($map->arr);
}',
],
'mapStaticClassTemplatedFromClassString' => [
' $t
* @return T
*/
function f(string $t) {
return $t::factory();
}
/** @template T of Base */
class C {
/** @var class-string */
private string $t;
/** @param class-string $t */
public function __construct($t) {
$this->t = $t;
}
/** @return T */
public function f(): Base {
$t = $this->t;
return $t::factory();
}
}'
],
'nullableTemplateAs' => [
'arrayObject = $arrayObject;
}
/**
* @psalm-assert-if-true Foo $this
* @psalm-assert-if-true ArrayObject $this->arrayObject
*/
public function hasArray(): bool
{
return $this->arrayObject instanceof \ArrayObject;
}
/** @return T */
public function toMaybeArray()
{
if ($this->hasArray()) {
return $this->arrayObject->getArrayCopy();
}
return null;
}
}'
],
'uasortCallableInMethod' => [
' $collection
* @psalm-param callable(T, T): int $sorter
* @psalm-return array
*/
function order(array $collection, callable $sorter): array {
usort($collection, $sorter);
return $collection;
}
}'
],
'intersectOnTOfObject' => [
'setMethodPrefixInterceptor(
function(AccessInterceptorInterface $i) : string {
return "hello";
}
);
}'
],
'assertionOnTemplatedClassString' => [
' $type
* @psalm-return EQB
*/
public function createEQB(string $type) {
if (!class_exists($type)) {
throw new InvalidArgumentException();
}
return new EQB($type);
}
}
/**
* @template Entity as object
*/
class EQB {
/**
* @psalm-var class-string
*/
protected $type;
/**
* @psalm-param class-string $type
*/
public function __construct(string $type) {
$this->type = $type;
}
}'
],
'createEmptyArrayCollection' => [
'
* @var array
*/
private $elements = [];
/**
* Initializes a new ArrayCollection.
*
* @param array $elements
*
* @psalm-param array $elements
*/
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
/**
* @param TKey $key
* @param T $t
*/
public function add($key, $t) : void {
$this->elements[$key] = $t;
}
}',
[
'$a' => 'ArrayCollection'
]
],
'newGenericBecomesPropertyTypeValidArg' => [
' */
public ArrayCollection $b_collection;
public function __construct() {
$this->b_collection = new ArrayCollection([]);
$this->b_collection->add(5, new B());
}
}
/**
* @psalm-template TKey of array-key
* @psalm-template T
*/
class ArrayCollection
{
/**
* An array containing the entries of this collection.
*
* @psalm-var array
* @var array
*/
private $elements = [];
/**
* Initializes a new ArrayCollection.
*
* @param array $elements
*
* @psalm-param array $elements
*/
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
/**
* @param TKey $key
* @param T $t
*/
public function add($key, $t) : void {
$this->elements[$key] = $t;
}
}'
],
'allowPropertyCoercion' => [
'
*/
private $c;
public function __construct()
{
$this->c = new ArrayCollection();
$this->c->filter(function (DateTime $dt): bool {
return $dt === $dt;
});
}
}
/**
* @psalm-template TKey of array-key
* @psalm-template T
*/
class ArrayCollection
{
/**
* @psalm-var array
* @var array
*/
private $elements;
/**
* @param array $elements
*
* @psalm-param array $elements
*/
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
/**
* @psalm-param Closure(T=):bool $p
* @psalm-return self
*/
public function filter(Closure $p)
{
return $this;
}
}'
],
'unionClassStringInferenceAndDefaultEmptyArray' => [
' $items */
protected $items = [];
/**
* @param array $items
*/
public function __construct(array $items = [])
{
$this->items = $items;
}
/**
* @template C as object
* @param class-string $classString
* @param array $elements
* @return Collection
*/
public static function fromClassString(string $classString, array $elements = []) : Collection
{
return new Collection($elements);
}
}',
[
'$packages' => 'Collection'
]
],
'assertSameOnTemplatedProperty' => [
'contents = $contents;
}
/** @param E $thing */
public function contains(object $thing) : bool
{
if ($this->contents !== $thing) {
return false;
}
return true;
}
}'
],
'assertNotNullOnTemplatedProperty' => [
' */
$a = new A();
if (null !== $a->filter) {}'
],
'setTemplatedPropertyOutsideClass' => [
'value = $value;
}
}
/** @psalm-var Watcher $watcher */
$watcher = new Watcher(0);
$watcher->value = 0;'
],
'callableAsClassStringArray' => [
'id = $id;
}
/**
* @return static
*/
final public static function fromString(string $id): self
{
return new static($id);
}
}
/**
* @template T of Id
*/
final class Ids
{
/**
* @psalm-var list
*/
private array $ids;
/**
* @psalm-param list $ids
*/
private function __construct(array $ids)
{
$this->ids = $ids;
}
/**
* @template T1 of Id
* @psalm-param T1 $class
* @psalm-param list $ids
* @psalm-return self
*/
public static function fromObjects(Id $class, array $ids): self
{
return new self(array_map([$class, "fromString"], $ids));
}
/**
* @template T1 of Id
* @psalm-param class-string $class
* @psalm-param list $ids
* @psalm-return self
*/
public static function fromStrings(string $class, array $ids): self
{
return new self(array_map([$class, "fromString"], $ids));
}
}'
],
'noCrashTemplateInsideGenerator' => [
' */
private \Iterator $values;
/**
* @param \Iterator $values
*/
public function __construct(\Iterator $values)
{
$this->values = $values;
}
/**
* @param T $element
*
* @return self
*/
public function __invoke($element): self
{
return new self(
(
function($values, $element): \Generator {
/** @var T $value */
foreach ($values as $value) {
yield $value;
}
yield $element;
}
)($this->values, $element),
);
}
}',
[],
['MissingClosureParamType']
],
'templatedPropertyAllowsNull' => [
'key = $key;
}
}'
],
'templatePropertyWithoutParams' => [
'
*/
public iterable $objects = [];
/**
* @var callable(T): void
*/
public $onEach;
public function __construct() {
$this->onEach = function (): void {};
}
}
function handle(Batch $message, object $o): void {
$fn = $message->onEach;
$fn($o);
}'
],
'changePropertyTypeOfTemplate' => [
'x = 1;
}'
],
'multipleMatchingObjectsInUnion' => [
'> $containers
* @return T
*/
function unwrap(array $containers) {
return array_map(
fn($container) => $container->get(),
$containers
)[0];
}
/**
* @param array|Container> $typed_containers
*/
function takesDifferentTypes(array $typed_containers) : void {
$ret = unwrap($typed_containers);
if (is_string($ret)) {}
if (is_int($ret)) {}
}',
[],
[],
'7.4'
],
'templateWithLateResolvedType' => [
' $foo */
$foo = new Foo();'
],
'SKIPPED-extendedPropertyTypeParameterised' => [
'createMap();
$date = $map->get("test");
echo $date->format("Y");
}
/**
* @return Map
*/
abstract protected function createMap(): Map;
}'
],
'looseEquality' => [
'level = $level;
}
/**
* @psalm-return self
*/
public static function readUncommitted(): self
{
return new self(self::READ_UNCOMMITTED);
}
/**
* @psalm-return T
*/
public function toString(): string
{
return $this->level;
}
/**
* @psalm-template TResult
* @psalm-param callable(self::READ_UNCOMMITTED): TResult $readUncommitted
* @psalm-return TResult
*/
public function resolve(callable $readUncommitted) {
if ($this->level == self::READ_UNCOMMITTED) {
return $readUncommitted($this->level);
}
throw new \LogicException("bad");
}
}'
],
'narrowTemplateTypeWithInstanceof' => [
'entity = $qux;
}
}
}'
],
'flippedParamsMethodInside' => [
' */
public abstract function getTraversable() : Traversable;
/**
* @param Foo $flipped
* @return Traversable
*/
public function getFlippedTraversable(Foo $flipped): Traversable
{
return $flipped->getTraversable();
}
}'
],
'flippedParamsMethodOutside' => [
' $flipped
* @return Traversable
*/
function getFlippedTraversable(Foo $flipped): Traversable {
return $flipped->getTraversable();
}
/**
* @template A
* @template B
*/
abstract class Foo
{
/** @return Traversable */
public abstract function getTraversable() : Traversable;
}'
],
'flippedParamsPropertyInside' => [
' */
public $traversable;
/**
* @param Foo $flipped
* @return Traversable
*/
public function getFlippedTraversable(Foo $flipped): Traversable
{
return $flipped->traversable;
}
}'
],
'flippedParamsPropertyOutside' => [
' $flipped
* @return Traversable
*/
function getFlippedTraversable(Foo $flipped): Traversable {
return $flipped->traversable;
}
/**
* @template A
* @template B
*/
abstract class Foo
{
/** @var Traversable */
public $traversable;
}'
],
'simpleTemplate' => [
' $f */
function takesFMixed(F $f) : void {}
function sendsF(F $f) : void {
takesFMixed($f);
}'
],
'arrayCollectionMapInternal' => [
' */
private $elements;
/** @psalm-param array $elements */
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
/**
* @template TNewKey of array-key
* @template TNew
* @psalm-param array $elements
* @psalm-return static
*/
protected static function createFrom(array $elements)
{
return new static($elements);
}
/**
* @psalm-template U
* @psalm-param Closure(T=):U $func
* @psalm-return static
*/
public function map(Closure $func)
{
$new_elements = array_map($func, $this->elements);
return self::createFrom($new_elements);
}
}'
],
'arrayCollectionMapExternal' => [
' */
private $elements;
/** @psalm-param array $elements */
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
/**
* @psalm-template U
* @psalm-param Closure(T=):U $func
* @psalm-return ArrayCollection
*/
public function map(Closure $func)
{
$new_elements = array_map($func, $this->elements);
return Creator::createFrom($new_elements);
}
}
class Creator {
/**
* @template TNewKey of array-key
* @template TNew
* @psalm-param array $elements
* @psalm-return ArrayCollection
*/
public static function createFrom(array $elements) {
return new ArrayCollection($elements);
}
}'
],
'templateWithClassConstants' => [
'level = $level;
}
}
/**
* @psalm-return Foo
*/
function getFooA(): Foo {
return new Foo(Foo::A);
}'
],
];
}
/**
* @return iterable
*/
public function providerInvalidCodeParse(): iterable
{
return [
'restrictTemplateInputWithClassString' => [
' */
private $items;
/**
* @param T::class $type
*/
public function __construct(string $type)
{
if (!in_array($type, [A::class, B::class], true)) {
throw new \InvalidArgumentException;
}
$this->type = $type;
$this->items = [];
}
/** @param T $item */
public function add($item): void
{
$this->items[] = $item;
}
}
class A {}
class B {}
$foo = new Foo(A::class);
$foo->add(new B);',
'error_message' => 'InvalidArgument',
],
'restrictTemplateInputWithTClassBadInput' => [
' */
private $items;
/**
* @param T::class $type
*/
public function __construct(string $type)
{
if (!in_array($type, [A::class, B::class], true)) {
throw new \InvalidArgumentException;
}
$this->type = $type;
$this->items = [];
}
/** @param T $item */
public function add($item): void
{
$this->items[] = $item;
}
}
class A {}
class B {}
$foo = new Foo(A::class);
$foo->add(new B);',
'error_message' => 'InvalidArgument',
],
'templatedClosureProperty' => [
' 'InvalidArgument - src' . DIRECTORY_SEPARATOR . 'somefile.php:20:34 - Argument 1 of type expects string, callable(State):(T:AlmostFooMap as mixed)&Foo provided',
],
'templateWithNoReturn' => [
' 'InvalidReturnType',
],
'templateInvalidDocblockArgument' => [
'
* @psalm-suppress InvalidReturnType
*/
function violate($p) {}',
'error_message' => 'InvalidTemplateParam',
],
'doublyLinkedListBadParam' => [
' */
$templated_list = new SplDoublyLinkedList();
$templated_list->add(5, []);',
'error_message' => 'InvalidArgument',
],
'copyScopedClassInNamespacedClass' => [
' 'ReservedWord',
],
'duplicateTemplateFunction' => [
'
*/
static function of($value): self
{
return new self($value);
}
/**
* @param T $value
*/
private function __construct($value)
{
$this->value = $value;
}
}',
'error_message' => 'InvalidDocblock',
],
'preventDogCatSnafu' => [
' $list
*/
function addAnimal(Collection $list) : void {
$list->add(new Cat());
}
/**
* @param Collection $list
*/
function takesDogList(Collection $list) : void {
addAnimal($list); // this should be an error
}',
'error_message' => 'InvalidArgument',
],
'templateEmptyParamCoercionChangeVariable' => [
' */
private $data;
/** @psalm-param iterable $data */
public function __construct(iterable $data = []) {
$this->data = $data;
}
}
/** @psalm-param Collection $c */
function takesStringCollection(Collection $c): void {}
/** @psalm-param Collection $c */
function takesIntCollection(Collection $c): void {}
$collection = new Collection();
takesStringCollection($collection);
takesIntCollection($collection);',
'error_message' => 'InvalidScalarArgument',
],
'argumentExpectsFleshOutTIndexedAccess' => [
'data = $data;
}
/**
* @template K as key-of
*
* @param K $property
*
* @return TData[K]
*/
public function __get(string $property) {
// validation logic would go here
return $this->data[$property];
}
/**
* @template K as key-of
*
* @param K $property
* @param TData[K] $value
*/
public function __set(string $property, $value) {
// data updating would go here
$this->data[$property] = $value;
}
}
/** @extends Row */
class CharacterRow extends Row {}
$mario = new CharacterRow(["id" => 5, "name" => "Mario", "height" => 3.5]);
$mario->ame = "Luigi";',
'error_message' => 'InvalidArgument - src' . DIRECTORY_SEPARATOR . 'somefile.php:47:29 - Argument 1 of CharacterRow::__set expects string(height)|string(id)|string(name), string(ame) provided',
],
'specialiseTypeBeforeReturning' => [
'
*/
function returnFooBase() {
$f = new Foo(new Derived());
takesFooDerived($f);
return $f;
}
/**
* @param Foo $foo
*/
function takesFooDerived($foo): void {}',
'error_message' => 'InvalidReturnStatement'
],
'possiblySpecialiseTypeBeforeReturning' => [
'
*/
function returnFooBase() {
$f = new Foo(new Derived());
if (rand(0, 1)) {
takesFooDerived($f);
}
return $f;
}
/**
* @param Foo $foo
*/
function takesFooDerived($foo): void {}',
'error_message' => 'InvalidReturnStatement'
],
'preventUseWithMoreSpecificParamInt' => [
' $col
*/
function usesCollection(Collection $col): void {
$col->add(456);
}',
'error_message' => 'InvalidArgument'
],
'preventUseWithMoreSpecificParamEmptyArray' => [
' $col
*/
function usesCollection(Collection $col): void {
$col->add([]);
}',
'error_message' => 'InvalidArgument'
],
'preventTemplatedCorrectionBeingWrittenTo' => [
' */
private $data;
/** @param array $data */
public function __construct(array $data) {
$this->data = $data;
}
/**
* @param TKey $key
* @param TValue $value
*/
public function addItem($key, $value) : void {
$this->data[$key] = $value;
}
}
class Item {}
class SubItem extends Item {}
class OtherSubItem extends Item {}
/**
* @param ArrayCollection $i
*/
function takesCollectionOfItems(ArrayCollection $i): void {
$i->addItem(10, new OtherSubItem);
}
$subitem_collection = new ArrayCollection([ new SubItem ]);
takesCollectionOfItems($subitem_collection);',
'error_message' => 'InvalidArgument'
],
'noClassTemplatesInStaticMethods' => [
' 'UndefinedDocblockClass'
],
'newGenericBecomesPropertyTypeInvalidArg' => [
' */
public ArrayCollection $b_collection;
public function __construct() {
$this->b_collection = new ArrayCollection([]);
$this->b_collection->add(5, new C());
}
}
/**
* @psalm-template TKey
* @psalm-template T
*/
class ArrayCollection
{
/**
* An array containing the entries of this collection.
*
* @psalm-var array
* @var array
*/
private $elements = [];
/**
* Initializes a new ArrayCollection.
*
* @param array $elements
*
* @psalm-param array $elements
*/
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
/**
* @param TKey $key
* @param T $t
*/
public function add($key, $t) : void {
$this->elements[$key] = $t;
}
}',
'error_message' => 'InvalidArgument'
],
'preventIteratorAggregateToIterableWithDifferentTypes' => [
' $foos */
function consume(iterable $foos): void {}
/** @param IteratorAggregate $t */
function foo(IteratorAggregate $t) : void {
consume($t);
}',
'error_message' => 'InvalidArgument',
],
'preventPassingToBoundParam' => [
't = $t;
}
/**
* @param T $t
* @return T
*/
protected function makeNew($t)
{
return $t;
}
/**
* @template U
* @param U $u
*/
public function map($u) : void
{
$this->makeNew($u);
}
}',
'error_message' => 'InvalidArgument',
],
'bindRedirectedTemplate' => [
'
* @param TIn2 $in
* @return list
*/
public function __invoke(array $in) : array {
return array_map(
$this->c,
$in
);
}
}
$m = new Map(fn(int $num) => (string) $num);
$m(["a"]);',
'error_message' => 'InvalidScalarArgument',
[],
false,
'8.0'
],
];
}
}