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PHP Decode
<?php namespace Psalm\Tests; use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait; use Ps..
Decoded Output download
<?php
namespace Psalm\Tests;
use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait;
use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
class CallableTest extends TestCase
{
use InvalidCodeAnalysisTestTrait;
use ValidCodeAnalysisTestTrait;
public function providerValidCodeParse(): iterable
{
return [
'byRefUseVar' => [
'code' => '<?php
/** @return void */
function run_function(\Closure $fnc) {
$fnc();
}
/**
* @return void
*/
function f() {
$data = 0;
run_function(
/**
* @return void
*/
function() use(&$data) {
$data = 1;
}
);
echo $data;
}
f();',
],
'inferredArg' => [
'code' => '<?php
$bar = ["foo", "bar"];
$bam = array_map(
function(string $a) {
return $a . "blah";
},
$bar
);',
],
'inferredArgArrowFunction' => [
'code' => '<?php
$bar = ["foo", "bar"];
$bam = array_map(
fn(string $a) => $a . "blah",
$bar
);',
'assertions' => [],
'ignored_issues' => [],
'php_version' => '7.4',
],
'inferArgFromClassContext' => [
'code' => '<?php
final class Calc
{
/**
* @param Closure(int, int): int $_fn
*/
public function __invoke(Closure $_fn): int
{
return $_fn(42, 42);
}
}
$calc = new Calc();
$a = $calc(fn($a, $b) => $a + $b);',
'assertions' => [
'$a' => 'int',
],
'ignored_issues' => [],
'php_version' => '7.4',
],
'inferArgFromClassContextWithNamedArguments' => [
'code' => '<?php
final class Calc
{
/**
* @param Closure(int, int): int ...$_fn
*/
public function __invoke(Closure ...$_fn): int
{
throw new RuntimeException("???");
}
}
$calc = new Calc();
$a = $calc(
foo: fn($_a, $_b) => $_a + $_b,
bar: fn($_a, $_b) => $_a + $_b,
baz: fn($_a, $_b) => $_a + $_b,
);',
'assertions' => [
'$a' => 'int',
],
'ignored_issues' => [],
'php_version' => '7.4',
],
'inferArgFromClassContextInGenericContext' => [
'code' => '<?php
/**
* @template A
*/
final class ArrayList
{
/**
* @template B
* @param Closure(A): B $ab
* @return ArrayList<B>
*/
public function map(Closure $ab): ArrayList
{
throw new RuntimeException("???");
}
}
/**
* @template T
* @param ArrayList<T> $list
* @return ArrayList<array{T}>
*/
function asTupled(ArrayList $list): ArrayList
{
return $list->map(function ($_a) {
return [$_a];
});
}
/** @var ArrayList<int> $a */
$a = new ArrayList();
$b = asTupled($a);',
'assertions' => [
'$b' => 'ArrayList<list{int}>',
],
],
'inferArgByPreviousMethodArg' => [
'code' => '<?php
final class ArrayList
{
/**
* @template A
* @template B
* @template C
* @param list<A> $list
* @param callable(A): B $first
* @param callable(B): C $second
* @return list<C>
*/
public function map(array $list, callable $first, callable $second): array
{
throw new RuntimeException("never");
}
}
$result = (new ArrayList())->map([1, 2, 3], fn($i) => ["num" => $i], fn($i) => ["object" => $i]);',
'assertions' => [
'$result' => 'list<array{object: array{num: int}}>',
],
],
'inferArgByPreviousFunctionArg' => [
'code' => '<?php
/**
* @template A
* @template B
*
* @param iterable<array-key, A> $_collection
* @param callable(A): B $_ab
* @return list<B>
*/
function map(iterable $_collection, callable $_ab) { return []; }
/** @template T */
final class Foo
{
/** @return Foo<int> */
public function toInt() { throw new RuntimeException("???"); }
}
/** @var list<Foo<string>> */
$items = [];
$inferred = map($items, function ($i) {
return $i->toInt();
});',
'assertions' => [
'$inferred' => 'list<Foo<int>>',
],
],
'inferTemplateForExplicitlyTypedArgByPreviousFunctionArg' => [
'code' => '<?php
/**
* @template A
* @template B
*
* @param iterable<array-key, A> $_collection
* @param callable(A): B $_ab
* @return list<B>
*/
function map(iterable $_collection, callable $_ab) { return []; }
/** @template T */
final class Foo
{
/** @return Foo<int> */
public function toInt() { throw new RuntimeException("???"); }
}
/** @var list<Foo<string>> */
$items = [];
$inferred = map($items, function (Foo $i) {
return $i->toInt();
});',
'assertions' => [
'$inferred' => 'list<Foo<int>>',
],
],
'doNotInferTemplateForExplicitlyTypedWithPhpdocArgByPreviousFunctionArg' => [
'code' => '<?php
/**
* @template A
* @template B
*
* @param iterable<array-key, A> $_collection
* @param callable(A): B $_ab
* @return list<B>
*/
function map(iterable $_collection, callable $_ab) { return []; }
/** @template T */
final class Foo { }
/** @var list<Foo<string>> */
$items = [];
$inferred = map($items,
/** @param Foo $i */
function ($i) {
return $i;
}
);',
'assertions' => [
'$inferred' => 'list<Foo>',
],
],
'inferTemplateOfHighOrderFunctionArgByPreviousArg' => [
'code' => '<?php
/**
* @return list<int>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(T): T
*/
function id() { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param list<A> $_items
* @param callable(A): B $_ab
* @return list<B>
*/
function map(array $_items, callable $_ab) { throw new RuntimeException("???"); }
$result = map(getList(), id());
',
'assertions' => [
'$result' => 'list<int>',
],
],
'inferTemplateOfHighOrderFunctionArgByPreviousArgInClassContext' => [
'code' => '<?php
/**
* @template A
*/
final class ArrayList
{
/**
* @template B
*
* @param callable(A): B $ab
* @return ArrayList<B>
*/
public function map(callable $ab) { throw new RuntimeException("???"); }
}
/**
* @return ArrayList<int>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(T): T
*/
function id() { throw new RuntimeException("???"); }
$result = getList()->map(id());
',
'assertions' => [
'$result' => 'ArrayList<int>',
],
],
'inferTemplateOfHighOrderFunctionFromMethodArgByPreviousArg' => [
'code' => '<?php
final class Ops
{
/**
* @template T
* @return Closure(list<T>): T
*/
public function flatten() { throw new RuntimeException("???"); }
}
/**
* @return list<list<int>>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(list<T>): T
*/
function flatten() { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param list<A> $_a
* @param callable(A): B $_ab
* @return list<B>
*/
function map(array $_a, callable $_ab) { throw new RuntimeException("???"); }
$ops = new Ops;
$result = map(getList(), $ops->flatten());
',
'assertions' => [
'$result' => 'list<int>',
],
],
'inferTemplateOfHighOrderFunctionFromStaticMethodArgByPreviousArg' => [
'code' => '<?php
final class StaticOps
{
/**
* @template T
* @return Closure(list<T>): T
*/
public static function flatten() { throw new RuntimeException("???"); }
}
/**
* @return list<list<int>>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(list<T>): T
*/
function flatten() { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param list<A> $_a
* @param callable(A): B $_ab
* @return list<B>
*/
function map(array $_a, callable $_ab) { throw new RuntimeException("???"); }
$result = map(getList(), StaticOps::flatten());
',
'assertions' => [
'$result' => 'list<int>',
],
],
'inferInvokableClassCallable' => [
'code' => '<?php
/**
* @template A
* @template B
*/
final class MapOperator
{
/** @var Closure(A): B */
private Closure $ab;
/**
* @param callable(A): B $ab
*/
public function __construct(callable $ab)
{
$this->ab = Closure::fromCallable($ab);
}
/**
* @template K
* @param array<K, A> $a
* @return array<K, B>
*/
public function __invoke(array $a): array
{
$b = [];
foreach ($a as $k => $v) {
$b[$k] = ($this->ab)($v);
}
return $b;
}
}
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @return array<string, int>
*/
function getDict(): array
{
return ["fst" => 1, "snd" => 2, "thr" => 3];
}
$result = pipe(getDict(), new MapOperator(fn($i) => ["num" => $i]));
',
'assertions' => [
'$result' => 'array<string, array{num: int}>',
],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferConstCallableLikeFirstClassCallable' => [
'code' => '<?php
namespace Functions {
use Closure;
final class Module
{
const id = "Functions\Module::id";
/**
* @template A
* @param A $value
* @return A
*/
public static function id(mixed $value): mixed
{
return $value;
}
}
const classId = Module::id;
const id = "Functions\id";
/**
* @template A
* @param A $value
* @return A
*/
function id(mixed $value): mixed
{
return $value;
}
/**
* @template A
* @template B
* @param callable(A): B $callback
* @return Closure(list<A>): list<B>
*/
function map(callable $callback): Closure
{
return fn(array $list) => array_map($callback, $list);
}
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe1(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @template A
* @template B
* @template C
* @param A $a
* @param callable(A): B $ab
* @param callable(B): C $bc
* @return C
*/
function pipe2(mixed $a, callable $ab, callable $bc): mixed
{
return $bc($ab($a));
}
}
namespace App {
use Functions\Module;
use function Functions\map;
use function Functions\pipe1;
use function Functions\pipe2;
use const Functions\classId;
use const Functions\id;
$class_const_id = pipe1([42], Module::id);
$class_const_composition = pipe1([42], map(Module::id));
$class_const_sequential = pipe2([42], map(fn($i) => ["num" => $i]), Module::id);
$class_const_alias_id = pipe1([42], classId);
$class_const_alias_composition = pipe1([42], map(classId));
$class_const_alias_sequential = pipe2([42], map(fn($i) => ["num" => $i]), classId);
$const_id = pipe1([42], id);
$const_composition = pipe1([42], map(id));
$const_sequential = pipe2([42], map(fn($i) => ["num" => $i]), id);
$string_id = pipe1([42], "Functions\id");
$string_composition = pipe1([42], map("Functions\id"));
$string_sequential = pipe2([42], map(fn($i) => ["num" => $i]), "Functions\id");
$class_string_id = pipe1([42], "Functions\Module::id");
$class_string_composition = pipe1([42], map("Functions\Module::id"));
$class_string_sequential = pipe2([42], map(fn($i) => ["num" => $i]), "Functions\Module::id");
}
',
'assertions' => [
'$class_const_id===' => 'list{42}',
'$class_const_composition===' => 'list<42>',
'$class_const_sequential===' => 'list<array{num: 42}>',
'$class_const_alias_id===' => 'list{42}',
'$class_const_alias_composition===' => 'list<42>',
'$class_const_alias_sequential===' => 'list<array{num: 42}>',
'$const_id===' => 'list{42}',
'$const_composition===' => 'list<42>',
'$const_sequential===' => 'list<array{num: 42}>',
'$string_id===' => 'list{42}',
'$string_composition===' => 'list<42>',
'$string_sequential===' => 'list<array{num: 42}>',
'$class_string_id===' => 'list{42}',
'$class_string_composition===' => 'list<42>',
'$class_string_sequential===' => 'list<array{num: 42}>',
],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferPipelineWithPartiallyAppliedFunctions' => [
'code' => '<?php
/**
* @template T
*
* @param callable(T, int): bool $_predicate
* @return Closure(list<T>): list<T>
*/
function filter(callable $_predicate): Closure { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param callable(A): B $_ab
* @return Closure(list<A>): list<B>
*/
function map(callable $_ab): Closure { throw new RuntimeException("???"); }
/**
* @template T
* @return (Closure(list<T>): (non-empty-list<T> | null))
*/
function asNonEmptyList(): Closure { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(T): T
*/
function id(): Closure { throw new RuntimeException("???"); }
/**
* @template A
* @template B
* @template C
* @template D
* @template E
* @template F
*
* @param A $arg
* @param callable(A): B $ab
* @param callable(B): C $bc
* @param callable(C): D $cd
* @param callable(D): E $de
* @param callable(E): F $ef
* @return F
*/
function pipe4(mixed $arg, callable $ab, callable $bc, callable $cd, callable $de, callable $ef): mixed
{
return $ef($de($cd($bc($ab($arg)))));
}
/**
* @template TFoo of string
* @template TBar of bool
*/
final class Item
{
/**
* @param TFoo $foo
* @param TBar $bar
*/
public function __construct(
public string $foo,
public bool $bar,
) { }
}
/**
* @return list<Item>
*/
function getList(): array { return []; }
$result = pipe4(
getList(),
filter(fn($i) => $i->bar),
filter(fn(Item $i) => $i->foo !== "bar"),
map(fn($i) => new Item("test: " . $i->foo, $i->bar)),
asNonEmptyList(),
id(),
);',
'assertions' => [
'$result' => 'non-empty-list<Item<string, bool>>|null',
],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferPipelineWithPartiallyAppliedFunctionsAndFirstClassCallable' => [
'code' => '<?php
/**
* @template T
* @param T $value
* @return T
*/
function id(mixed $value): mixed
{
return $value;
}
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @template A
* @template B
* @param callable(A): B $callback
* @return Closure(list<A>): list<B>
*/
function map(callable $callback): Closure
{
return fn($array) => array_map($callback, $array);
}
/**
* @return list<int>
*/
function getNums(): array
{
return [];
}
/**
* @template T of float|int
*/
final class ObjectNum
{
/**
* @psalm-param T $value
*/
public function __construct(
public readonly float|int $value,
) {}
}
/**
* @return list<ObjectNum<int>>
*/
function getObjectNums(): array
{
return [];
}
$id = pipe(getNums(), id(...));
$wrapped_id = pipe(getNums(), map(id(...)));
$id_nested = pipe(getObjectNums(), map(id(...)));
$id_nested_simple = pipe(getObjectNums(), id(...));
',
'assertions' => [
'$id' => 'list<int>',
'$wrapped_id' => 'list<int>',
'$id_nested' => 'list<ObjectNum<int>>',
'$id_nested_simple' => 'list<ObjectNum<int>>',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableWithGenericObject' => [
'code' => '<?php
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe($a, callable $ab)
{
return $ab($a);
}
/**
* @template A
* @psalm-immutable
*/
final class Container
{
/** @param A $value */
public function __construct(
public readonly mixed $value,
) {}
}
/**
* @template A
* @param Container<A> $container
* @return A
*/
function unwrap(Container $container)
{
return $container->value;
}
$result = pipe(
new Container(42),
unwrap(...),
);
',
'assertions' => [
'$result===' => '42',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableOnMethodCall' => [
'code' => '<?php
/**
* @template A
* @template B
*/
final class Processor
{
/**
* @param A $a
* @param B $b
*/
public function __construct(
public readonly mixed $a,
public readonly mixed $b,
) {}
/**
* @template AProcessed
* @template BProcessed
* @param callable(A): AProcessed $processA
* @param callable(B): BProcessed $processB
* @return list{AProcessed, BProcessed}
*/
public function process(callable $processA, callable $processB): array
{
return [$processA($this->a), $processB($this->b)];
}
}
/**
* @template A
* @param A $value
* @return A
*/
function id(mixed $value): mixed
{
return $value;
}
function intToString(int $value): string
{
return (string) $value;
}
/**
* @template A
* @param A $value
* @return list{A}
*/
function singleToList(mixed $value): array
{
return [$value];
}
$processor = new Processor(a: 1, b: 2);
$test_id = $processor->process(id(...), id(...));
$test_complex = $processor->process(intToString(...), singleToList(...));
',
'assertions' => [
'$test_id' => 'list{int, int}',
'$test_complex' => 'list{string, list{int}}',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableOnMethodCallWithMultipleParams' => [
'code' => '<?php
/**
* @template A
* @template B
* @template C
*/
final class Processor
{
/**
* @param A $a
* @param B $b
* @param C $c
*/
public function __construct(
public readonly mixed $a,
public readonly mixed $b,
public readonly mixed $c,
) {}
/**
* @template AProcessed
* @template BProcessed
* @template CProcessed
* @param callable(A, B, C): list{AProcessed, BProcessed, CProcessed} $processAB
* @return list{AProcessed, BProcessed, CProcessed}
*/
public function process(callable $processAB): array
{
return $processAB($this->a, $this->b, $this->c);
}
}
/**
* @template A
* @template B
* @template C
* @param A $value1
* @param B $value2
* @param C $value3
* @return list{A, B, C}
*/
function tripleId(mixed $value1, mixed $value2, mixed $value3): array
{
return [$value1, $value2, $value3];
}
$processor = new Processor(a: 1, b: 2, c: 3);
$test = $processor->process(tripleId(...));
',
'assertions' => [
'$test' => 'list{int, int, int}',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableOnMethodCallWithTemplatedAndNonTemplatedParams' => [
'code' => '<?php
/**
* @template T1
* @template T2
*/
final class App
{
/**
* @param T1 $param1
* @param T2 $param2
*/
public function __construct(
private readonly mixed $param1,
private readonly mixed $param2,
) {
}
/**
* @template T3
* @param callable(T1, T2): T3 $callback
* @return T3
*/
public function run(callable $callback): mixed
{
return $callback($this->param1, $this->param2);
}
}
/**
* @template T of int|float
* @param T $param2
* @return array{param1: int, param2: T}
*/
function appHandler1(int $param1, int|float $param2): array
{
return ["param1" => $param1, "param2" => $param2];
}
/**
* @template T of int|float
* @param T $param1
* @return array{param1: T, param2: int}
*/
function appHandler2(int|float $param1, int $param2): array
{
return ["param1" => $param1, "param2" => $param2];
}
/**
* @return array{param1: int, param2: int}
*/
function appHandler3(int $param1, int $param2): array
{
return ["param1" => $param1, "param2" => $param2];
}
$app = new App(param1: 42, param2: 42);
$result1 = $app->run(appHandler1(...));
$result2 = $app->run(appHandler2(...));
$result3 = $app->run(appHandler3(...));
',
'assertions' => [
'$result1===' => 'array{param1: int, param2: 42}',
'$result2===' => 'array{param1: 42, param2: int}',
'$result3===' => 'array{param1: int, param2: int}',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferTypeWhenClosureParamIsOmitted' => [
'code' => '<?php
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @template A
* @param callable(A): void $callback
* @return Closure(list<A>): list<A>
*/
function iterate(callable $callback): Closure
{
return function(array $list) use ($callback) {
foreach ($list as $item) {
$callback($item);
}
return $list;
};
}
$result1 = pipe(
[1, 2, 3],
iterate(fn($i) => print_r($i)),
);
$result2 = pipe(
[1, 2, 3],
iterate(fn() => print_r("noop")),
);',
'assertions' => [
'$result1===' => 'list<1|2|3>',
'$result2===' => 'list<1|2|3>',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'varReturnType' => [
'code' => '<?php
$add_one = function(int $a) : int {
return $a + 1;
};
$a = $add_one(1);',
'assertions' => [
'$a' => 'int',
],
],
'varReturnTypeArray' => [
'code' => '<?php
$add_one = fn(int $a) : int => $a + 1;
$a = $add_one(1);',
'assertions' => [
'$a' => 'int',
],
'ignored_issues' => [],
'php_version' => '7.4',
],
'varCallableParamReturnType' => [
'code' => '<?php
$add_one = function(int $a): int {
return $a + 1;
};
/**
* @param callable(int) : int $c
*/
function bar(callable $c) : int {
return $c(1);
}
bar($add_one);',
],
'callableToClosure' => [
'code' => '<?php
/**
* @return callable
*/
function foo() {
return function(string $a): string {
return $a . "blah";
};
}',
],
'callableToClosureArrow' => [
'code' => '<?php
/**
* @return callable
*/
function foo() {
return fn(string $a): string => $a . "blah";
}',
'assertions' => [],
'ignored_issues' => [],
'php_version' => '7.4',
],
'callable' => [
'code' => '<?php
function foo(callable $c): void {
echo (string)$c();
}',
],
'callableClass' => [
'code' => '<?php
class C {
public function __invoke(): string {
return "You ran?";
}
}
function foo(callable $c): void {
echo (string)$c();
}
foo(new C());
$c2 = new C();
$c2();',
],
'invokeMethodExists' => [
'code' => '<?php
function call(object $obj): void {
if (!method_exists($obj, "__invoke")) {
return;
}
$obj();
}',
],
'correctParamType' => [
'code' => '<?php
$take_string = function(string $s): string { return $s; };
$take_string("string");',
],
'callableMethodStringCallable' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo("A::bar");
foo(A::class . "::bar");',
],
'callableMethodArrayCallable' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(["A", "bar"]);
foo([A::class, "bar"]);
$a = new A();
foo([$a, "bar"]);',
],
'callableMethodArrayCallableMissingTypes' => [
'code' => '<?php
function foo(callable $c): void {}
/** @psalm-suppress MissingParamType */
function bar($a, $b) : void {
foo([$a, $b]);
}',
],
'arrayMapCallableMethod' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function baz(string $a): string {
return $a . "b";
}
$a = array_map("A::bar", ["one", "two"]);
$b = array_map(["A", "bar"], ["one", "two"]);
$c = array_map([A::class, "bar"], ["one", "two"]);
$d = array_map([new A(), "bar"], ["one", "two"]);
$a_instance = new A();
$e = array_map([$a_instance, "bar"], ["one", "two"]);
$f = array_map("baz", ["one", "two"]);',
'assertions' => [
'$a' => 'list{string, string}',
'$b' => 'list{string, string}',
'$c' => 'list{string, string}',
'$d' => 'list{string, string}',
'$e' => 'list{string, string}',
'$f' => 'list{string, string}',
],
],
'arrayCallableMethod' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(["A", "bar"]);',
],
'callableFunction' => [
'code' => '<?php
function foo(callable $c): void {}
foo("trim");',
],
'inlineCallableFunction' => [
'code' => '<?php
class A {
function bar(): void {
function foobar(int $a, int $b): int {
return $a > $b ? 1 : 0;
}
$arr = [5, 4, 3, 1, 2];
usort($arr, "fooBar");
}
}',
],
'closureSelf' => [
'code' => '<?php
class A
{
/**
* @var self[]
*/
private $subitems;
/**
* @param self[] $in
*/
public function __construct(array $in = [])
{
array_map(function(self $i): self { return $i; }, $in);
$this->subitems = array_map(
function(self $i): self {
return $i;
},
$in
);
}
}
new A([new A, new A]);',
],
'possiblyUndefinedFunction' => [
'code' => '<?php
/**
* @param string|callable $middlewareOrPath
*/
function pipe($middlewareOrPath, ?callable $middleware = null): void { }
pipe("zzzz", function() : void {});',
],
'callableWithNonInvokable' => [
'code' => '<?php
function asd(): void {}
class B {}
/**
* @param callable|B $p
*/
function passes($p): void {}
passes("asd");',
],
'callableWithInvokable' => [
'code' => '<?php
function asd(): void {}
class A { public function __invoke(): void {} }
/**
* @param callable|A $p
*/
function fails($p): void {}
fails("asd");',
],
'isCallableArray' => [
'code' => '<?php
class A
{
public function callMeMaybe(string $method): void
{
$handleMethod = [$this, $method];
if (is_callable($handleMethod)) {
$handleMethod();
}
}
public function foo(): void {}
}
$a = new A();
$a->callMeMaybe("foo");',
],
'isCallableString' => [
'code' => '<?php
function foo(): void {}
function callMeMaybe(string $method): void {
if (is_callable($method)) {
$method();
}
}
callMeMaybe("foo");',
],
'allowVoidCallable' => [
'code' => '<?php
/**
* @param callable():void $p
*/
function doSomething($p): void {}
doSomething(function(): bool { return false; });',
],
'callableProperties' => [
'code' => '<?php
class C {
/** @psalm-var callable():bool */
private $callable;
/**
* @psalm-param callable():bool $callable
*/
public function __construct(callable $callable) {
$this->callable = $callable;
}
public function callTheCallableDirectly(): bool {
return ($this->callable)();
}
public function callTheCallableIndirectly(): bool {
$r = $this->callable;
return $r();
}
}',
],
'invokableProperties' => [
'code' => '<?php
class A {
public function __invoke(): bool { return true; }
}
class C {
/** @var A $invokable */
private $invokable;
public function __construct(A $invokable) {
$this->invokable = $invokable;
}
public function callTheInvokableDirectly(): bool {
return ($this->invokable)();
}
public function callTheInvokableIndirectly(): bool {
$r = $this->invokable;
return $r();
}
}',
],
'nullableReturnTypeShorthand' => [
'code' => '<?php
class A {}
/** @param callable(mixed):?A $a */
function foo(callable $a): void {}',
],
'callablesCanBeObjects' => [
'code' => '<?php
function foo(callable $c) : void {
if (is_object($c)) {
$c();
}
}',
],
'objectsCanBeCallable' => [
'code' => '<?php
function foo(object $c) : void {
if (is_callable($c)) {
$c();
}
}',
],
'unionCanBeCallable' => [
'code' => '<?php
class A {}
class B {
public function __invoke() : string {
return "hello";
}
}
/**
* @param A|B $c
*/
function foo($c) : void {
if (is_callable($c)) {
$c();
}
}',
],
'goodCallableArgs' => [
'code' => '<?php
/**
* @param callable(string,string):int $_p
*/
function f(callable $_p): void {}
class C {
public static function m(string $a, string $b): int { return $a <=> $b; }
}
f("strcmp");
f([new C, "m"]);
f([C::class, "m"]);',
],
'callableWithSpaces' => [
'code' => '<?php
/**
* @param callable(string, string) : int $p
*/
function f(callable $p): void {}',
],
'fileExistsCallable' => [
'code' => '<?php
/**
* @param non-empty-string $prospective_file_path
* @return non-empty-string[]
*/
function foo(string $prospective_file_path) : array {
return array_filter(
glob($prospective_file_path),
"file_exists"
);
}',
],
'callableSelfArg' => [
'code' => '<?php
class C extends B {}
$b = new B();
$c = new C();
$b->func2(function(B $x): void {});
$c->func2(function(B $x): void {});
class A {}
class B extends A {
/**
* @param callable(self) $f
*/
function func2(callable $f): void {
$f($this);
}
}',
],
'callableParentArg' => [
'code' => '<?php
class C extends B {}
$b = new B();
$c = new C();
$b->func3(function(A $x): void {});
$c->func3(function(A $x): void {});
class A {}
class B extends A {
/**
* @param callable(parent) $f
*/
function func3(callable $f): void {
$f($this);
}
}',
],
'callableStaticArg' => [
'code' => '<?php
class C extends B {}
$b = new B();
$c = new C();
$b->func1(function(B $x): void {});
$c->func1(function(C $x): void {});
class A {}
class B extends A {
/**
* @param callable(static) $f
*/
function func1(callable $f): void {
$f($this);
}
}',
],
'callableStaticReturn' => [
'code' => '<?php
class A {}
class B extends A {
/**
* @param callable():static $f
*/
function func1(callable $f): void {}
}
final class C extends B {}
$c = new C();
$c->func1(function(): C { return new C(); });',
],
'callableSelfReturn' => [
'code' => '<?php
class A {}
class B extends A {
/**
* @param callable():self $f
*/
function func2(callable $f): void {}
}
final class C extends B {}
$b = new B();
$c = new C();
$b->func2(function() { return new B(); });
$c->func2(function() { return new C(); });',
],
'callableParentReturn' => [
'code' => '<?php
class A {}
class B extends A {
/**
* @param callable():parent $f
*/
function func3(callable $f): void {}
}
$b = new B();
$b->func3(function() { return new A(); });',
],
'selfArrayMapCallableWrongClass' => [
'code' => '<?php
class Foo {
public function __construct(int $param) {}
public static function foo(int $param): Foo {
return new self($param);
}
public static function baz(int $param): self {
return new self($param);
}
}
class Bar {
/**
* @return array<int, Foo>
*/
public function bar() {
return array_map([Foo::class, "foo"], [1,2,3]);
}
/** @return array<int, Foo> */
public function bat() {
return array_map([Foo::class, "baz"], [1]);
}
}',
],
'dynamicCallableArray' => [
'code' => '<?php
class A {
/** @var string */
private $value = "default";
private function modify(string $name, string $value): void {
call_user_func([$this, "modify" . $name], $value);
}
public function modifyFoo(string $value): void {
$this->value = $value;
}
}',
],
'callableIsArrayAssertion' => [
'code' => '<?php
function foo(callable $c) : void {
if (is_array($c)) {
echo $c[1];
}
}',
],
'callableOrArrayIsArrayAssertion' => [
'code' => '<?php
/**
* @param callable|array $c
*/
function foo($c) : void {
if (is_array($c) && isset($c[1]) && is_string($c[1])) {
echo $c[1];
}
}',
],
'dontInferMethodIdWhenFormatDoesntFit' => [
'code' => '<?php
/** @param string|callable $p */
function f($p): array {
return [];
}
f("#b::a");',
],
'removeCallableAssertionAfterReassignment' => [
'code' => '<?php
function foo(string $key) : void {
$setter = "a" . $key;
if (is_callable($setter)) {
return;
}
$setter = "b" . $key;
if (is_callable($setter)) {}
}',
],
'noExceptionOnSelfString' => [
'code' => '<?php
class Fish {
public static function example(array $vals): void {
usort($vals, ["self", "compare"]);
}
/**
* @param mixed $a
* @param mixed $b
*/
public static function compare($a, $b): int {
return -1;
}
}',
],
'noFatalErrorOnClassWithSlash' => [
'code' => '<?php
class Func {
public function __construct(string $name, callable $callable) {}
}
class Foo {
public static function bar(): string { return "asd"; }
}
new Func("f", ["\Foo", "bar"]);',
],
'staticReturningCallable' => [
'code' => '<?php
abstract class Id
{
/**
* @var string
*/
private $id;
final protected function __construct(string $id)
{
$this->id = $id;
}
/**
* @return static
*/
final public static function fromString(string $id): self
{
return new static($id);
}
}
final class CriterionId extends Id
{
}
final class CriterionIds
{
/**
* @psalm-var non-empty-list<CriterionId>
*/
private $ids;
/**
* @psalm-param non-empty-list<CriterionId> $ids
*/
private function __construct(array $ids)
{
$this->ids = $ids;
}
/**
* @psalm-param non-empty-list<string> $ids
*/
public static function fromStrings(array $ids): self
{
return new self(array_map([CriterionId::class, "fromString"], $ids));
}
}',
],
'offsetOnCallable' => [
'code' => '<?php
function c(callable $c) : void {
if (is_array($c)) {
new ReflectionClass($c[0]);
}
}',
],
'destructureCallableArray' => [
'code' => '<?php
function getCallable(): callable {
return [DateTimeImmutable::class, "createFromFormat"];
}
$callable = getCallable();
if (!is_array($callable)) {
exit;
}
[$classOrObject, $method] = $callable;',
'assertions' => [
'$classOrObject' => 'class-string|object',
'$method' => 'string',
],
],
'callableInterface' => [
'code' => '<?php
interface CallableInterface{
public function __invoke(): bool;
}
function takesInvokableInterface(CallableInterface $c): void{
takesCallable($c);
}
function takesCallable(callable $c): void {
$c();
}',
],
'notCallableArrayNoUndefinedClass' => [
'code' => '<?php
/**
* @psalm-param array|callable $_fields
*/
function f($_fields): void {}
f(["instance_date" => "ASC", "start_time" => "ASC"]);',
],
'callOnInvokableOrCallable' => [
'code' => '<?php
interface Callback {
public function __invoke(): void;
}
/** @var Callback|callable */
$test = function (): void {};
$test();',
],
'resolveTraitClosureReturn' => [
'code' => '<?php
class B {
/**
* @psalm-param callable(mixed...):static $i
*/
function takesACall(callable $i) : void {}
public function call() : void {
$this->takesACall(function() {return $this;});
}
}',
],
'returnClosureReturningStatic' => [
'code' => '<?php
/**
* @psalm-consistent-constructor
*/
class C {
/**
* @return Closure():static
*/
public static function foo() {
return function() {
return new static();
};
}
}',
],
'returnsVoidAcceptableForNullable' => [
'code' => '<?php
/** @param callable():?bool $c */
function takesCallable(callable $c) : void {}
takesCallable(function() { return; });',
],
'callableMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public static function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
],
'callableMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
],
'callableClassStringArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public static function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
],
'callableClassStringMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public static function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
],
'callableInClassStringArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInClassConstantArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInClassStringMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodOutOfClassContextNonStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func(array($this, "hello"));
}
private function hello(): void {
echo "hello";
}
}',
],
'callableClassStringArrayMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func(array(Foo::class, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
],
'callableClassLiteralStringMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func("Foo::hello");
}
protected function hello(): void {
echo "hello";
}
}',
],
'callableClassConstantArrayMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func(array(__CLASS__, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodClassContextNonStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableInstanceArrayMethodClassContextNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array($this, "hello"));
}
protected function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
private function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableClassConstantArrayMethodClassContextStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array(Foo::class, "hello"));
}
protected static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
private function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableClassConstantArrayMethodClassContextNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array(Foo::class, "hello"));
}
protected function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
private function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableClassStringArrayMethodOtherClassContextStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array(Foo::class, "hello"));
}
public static function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}
',
],
'callableInstanceArrayMethodOtherClassContextNonStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}
',
],
'callableClassLiteralStringMethodOtherClassContextStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c("Foo::hello");
}
public static function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}
',
],
# @todo valid
'notCallableListNoUndefinedClass' => [
'code' => '<?php
/**
* @param array|callable $arg
*/
function foo($arg): void {}
foo(["a", "b"]);',
],
'notCallableArray' => [
'code' => '<?php
/**
* @param array{class-string, string}|callable $arg
*/
function foo($arg): void {}
foo([\DateTime::class, "format"]);',
],
'notCallableString' => [
'code' => '<?php
/**
* @param string|callable $arg
*/
function foo($arg): void {}
foo("notACallable");',
],
'callableOptionalOrAdditionalOptional' => [
'code' => '<?php
/**
* @param callable(string, string, string, string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c, string $d = ""): bool {}
foo("bar");
/**
* @param callable(string, string, string):bool $arg
* @return void
*/
function foo1($arg) {}
function bar1(string $a, string $b, string $c, string $d = ""): bool {}
foo1("bar1");',
'assertions' => [],
'ignored_issues' => ['InvalidReturnType'],
],
'abstractInvokeInTrait' => [
'code' => '<?php
function testFunc(callable $func) : void {}
trait TestTrait {
abstract public function __invoke() : void;
public function apply() : void {
testFunc($this);
}
}
abstract class TestClass {
use TestTrait;
}',
],
'variadicClosureAssignability' => [
'code' => '<?php
function withVariadic(int $a, int $b, int ...$rest): int
{
return 0;
}
/** @param Closure(int, int): int $f */
function int_int(Closure $f): void {}
/** @param Closure(int, int, int): int $f */
function int_int_int(Closure $f): void {}
/** @param Closure(int, int, int, int): int $f */
function int_int_int_int(Closure $f): void {}
int_int(withVariadic(...));
int_int_int(withVariadic(...));
int_int_int_int(withVariadic(...));',
'assertions' => [],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferTypeWithNestedTemplatesAndExplicitTypeHint' => [
'code' => '<?php
/**
* @template TResult
*/
interface Message {}
/**
* @implements Message<list<int>>
*/
final class GetListOfNumbers implements Message {}
/**
* @template TResult
* @template TMessage of Message<TResult>
*/
final class Envelope {}
/**
* @template TResult
* @template TMessage of Message<TResult>
* @param class-string<TMessage> $_message
* @param callable(TMessage, Envelope<TResult, TMessage>): TResult $_handler
*/
function addHandler(string $_message, callable $_handler): void {}
addHandler(GetListOfNumbers::class, function (Message $_message, Envelope $_envelope) {
/**
* @psalm-check-type-exact $_message = GetListOfNumbers
* @psalm-check-type-exact $_envelope = Envelope<list<int>, GetListOfNumbers>
*/
return [1, 2, 3];
});',
],
'unsealedAllOptionalCbParam' => [
'code' => '<?php
/**
* @param callable(array<string, string>) $arg
* @return void
*/
function foo($arg) {}
/**
* @param array{a?: string}&array<string, string> $cb_arg
* @return void
*/
function bar($cb_arg) {}
foo("bar");',
],
'callableWithNamedArguments' => [
'code' => <<<'PHP'
<?php
/** @param callable(int $i) $c */
function f(callable $c): void {
$c(i: 1);
}
PHP,
'assertions' => [],
'ignored_issues' => [],
'php_version' => '8.0',
],
'callableArrayPassedAsCallable' => [
'code' => <<<'PHP'
<?php
function f(callable $c): void {
$c();
}
/** @var object $o */;
$ca = [$o::class, 'createFromFormat'];
if (!is_callable($ca)) {
exit;
}
f($ca);
PHP,
],
];
}
public function providerInvalidCodeParse(): iterable
{
return [
'undefinedCallableClass' => [
'code' => '<?php
class A {
public function getFoo(): Foo
{
return new Foo([]);
}
/**
* @param mixed $argOne
* @param mixed $argTwo
* @return void
*/
public function bar($argOne, $argTwo)
{
$this->getFoo()($argOne, $argTwo);
}
}',
'error_message' => 'InvalidFunctionCall',
'ignored_issues' => ['UndefinedClass', 'MixedInferredReturnType'],
],
'undefinedCallableMethodFullString' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo("A::barr");',
'error_message' => 'UndefinedMethod',
],
'undefinedCallableMethodClassConcat' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(A::class . "::barr");',
'error_message' => 'UndefinedMethod',
],
'undefinedCallableMethodArray' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo([A::class, "::barr"]);',
'error_message' => 'InvalidArgument',
],
'undefinedCallableMethodArrayWithoutClass' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(["A", "::barr"]);',
'error_message' => 'InvalidArgument',
],
'undefinedCallableMethodClass' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo("B::bar");',
'error_message' => 'UndefinedClass',
],
'undefinedCallableFunction' => [
'code' => '<?php
function foo(callable $c): void {}
foo("trime");',
'error_message' => 'UndefinedFunction',
],
'stringFunctionCall' => [
'code' => '<?php
$bad_one = "hello";
$a = $bad_one(1);',
'error_message' => 'MixedAssignment',
],
'wrongCallableReturnType' => [
'code' => '<?php
$add_one = function(int $a): int {
return $a + 1;
};
/**
* @param callable(int) : int $c
*/
function bar(callable $c) : string {
return $c(1);
}
bar($add_one);',
'error_message' => 'InvalidReturnStatement',
],
'checkCallableTypeString' => [
'code' => '<?php
/**
* @param callable(int,int):int $_p
*/
function f(callable $_p): void {}
f("strcmp");',
'error_message' => 'InvalidScalarArgument',
],
'checkCallableTypeArrayInstanceFirstArg' => [
'code' => '<?php
/**
* @param callable(int,int):int $_p
*/
function f(callable $_p): void {}
class C {
public static function m(string $a, string $b): int { return $a <=> $b; }
}
f([new C, "m"]);',
'error_message' => 'InvalidScalarArgument',
],
'checkCallableTypeArrayClassStringFirstArg' => [
'code' => '<?php
/**
* @param callable(int,int):int $_p
*/
function f(callable $_p): void {}
class C {
public static function m(string $a, string $b): int { return $a <=> $b; }
}
f([C::class, "m"]);',
'error_message' => 'InvalidScalarArgument',
],
'callableWithSpaceAfterColonBadVarArg' => [
'code' => '<?php
class C {
/**
* @var callable(string, string): bool $p
*/
public $p;
public function __construct() {
$this->p = function (string $s, string $t): stdClass {
return new stdClass;
};
}
}',
'error_message' => 'InvalidPropertyAssignmentValue',
],
'callableWithSpaceBeforeColonBadVarArg' => [
'code' => '<?php
class C {
/**
* @var callable(string, string) :bool $p
*/
public $p;
public function __construct() {
$this->p = function (string $s, string $t): stdClass {
return new stdClass;
};
}
}',
'error_message' => 'InvalidPropertyAssignmentValue',
],
'callableWithSpacesEitherSideOfColonBadVarArg' => [
'code' => '<?php
class C {
/**
* @var callable(string, string) : bool $p
*/
public $p;
public function __construct() {
$this->p = function (string $s, string $t): stdClass {
return new stdClass;
};
}
}',
'error_message' => 'InvalidPropertyAssignmentValue',
],
'badArrayMapArrayCallable' => [
'code' => '<?php
class one { public function two(string $_p): void {} }
array_map(["two", "three"], ["one", "two"]);',
'error_message' => 'InvalidArgument',
],
'noFatalErrorOnMissingClassWithSlash' => [
'code' => '<?php
class Func {
public function __construct(string $name, callable $callable) {}
}
new Func("f", ["\Foo", "bar"]);',
'error_message' => 'InvalidArgument',
],
'noFatalErrorOnMissingClassWithoutSlash' => [
'code' => '<?php
class Func {
public function __construct(string $name, callable $callable) {}
}
new Func("f", ["Foo", "bar"]);',
'error_message' => 'InvalidArgument',
],
'invalidArrayCallable' => [
'code' => '<?php
function foo(callable $callback) : void {
$callback();
}
final class Bar {
public static function baz() : void {}
}
foo([Bar::class, "baz", 1231233]);',
'error_message' => 'InvalidArgument',
],
'callableMissingOptional' => [
'code' => '<?php
/**
* @param callable(string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(): bool {
return rand(0, 10) > 5 ? true : false;
}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
],
'callableMissingOptionalThisArray' => [
'code' => '<?php
/**
* @param callable(string=):bool $arg
* @return void
*/
function foo($arg) {}
class A {
public function __construct() {
foo([$this, "bar"]);
}
public function bar(): bool {
return true;
}
}',
'error_message' => 'PossiblyInvalidArgument',
],
'callableMissingOptionalVariableInstanceArray' => [
'code' => '<?php
/**
* @param callable(string=):bool $arg
* @return void
*/
function foo($arg) {}
class A {
public function bar(): bool {
return true;
}
}
$a_instance = new A();
$y = [$a_instance, "bar"];
foo($y);',
'error_message' => 'PossiblyInvalidArgument',
],
'callableMissingOptionalMultipleParams' => [
'code' => '<?php
/**
* @param callable(string, string, string, string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c): bool {}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'callableMissingRequiredMultipleParams' => [
'code' => '<?php
/**
* @param callable(string, string, string, string):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c): bool {}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'callableAdditionalRequiredParam' => [
'code' => '<?php
/**
* @param callable(string, string, string):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c, string $d): bool {}
foo("bar");',
'error_message' => 'InvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'callableMultipleParamsWithOptional' => [
'code' => '<?php
/**
* @param callable(string, string, string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c): bool {}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'preventStringDocblockType' => [
'code' => '<?php
/**
* @param string $mapper
*/
function map2(callable $mapper): void {}
map2("foo");',
'error_message' => 'MismatchingDocblockParamType',
],
'moreSpecificCallable' => [
'code' => '<?php
/** @param callable(string):void $c */
function takesSpecificCallable(callable $c) : void {
$c("foo");
}
function takesCallable(callable $c) : void {
takesSpecificCallable($c);
}',
'error_message' => 'MixedArgumentTypeCoercion',
],
'undefinedVarInBareCallable' => [
'code' => '<?php
$fn = function(int $a): void{};
function a(callable $fn): void{
$fn(++$a);
}
a($fn);',
'error_message' => 'UndefinedVariable',
],
'dontQualifyStringCallables' => [
'code' => '<?php
namespace NS;
function ff() : void {}
function run(callable $f) : void {
$f();
}
run("ff");',
'error_message' => 'UndefinedFunction',
],
'badCustomFunction' => [
'code' => '<?php
/**
* @param callable(int):bool $func
*/
function takesFunction(callable $func) : void {}
function myFunction( string $foo ) : bool {
return false;
}
takesFunction("myFunction");',
'error_message' => 'InvalidScalarArgument',
],
'emptyCallable' => [
'code' => '<?php
$a = "";
$a();',
'error_message' => 'InvalidFunctionCall',
],
'callableMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
private static function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
protected function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
private static function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
protected function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
'error_message' => 'InvalidArgument',
],
'callableClassStringMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
private static function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
'error_message' => 'InvalidArgument',
],
'callableClassStringMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
protected function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
'error_message' => 'InvalidArgument',
],
'callableInClassStringArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassConstantArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassConstantArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassConstantArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodClassContextPhpNativeUnsupportedNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
header_register_callback(array($this, "hello"));
}
private function hello(): void {
header("X-Test: hello");
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodOutOfClassContextStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
protected static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOtherClassContextNonStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array(Foo::class, "hello"));
}
public function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodOtherClassContextNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array($this, "hello"));
}
protected function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
'error_message' => 'InvalidArgument',
],
'callableClassLiteralStringMethodOtherClassContextStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c("Foo::hello");
}
protected static function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
'error_message' => 'InvalidArgument',
],
# @todo invalid
'ImpureFunctionCall' => [
'code' => '<?php
/**
* @psalm-template T
*
* @psalm-param array<int, T> $values
* @psalm-param (callable(T): numeric) $num_func
*
* @psalm-return null|T
*
* @psalm-pure
*/
function max_by(array $values, callable $num_func)
{
$max = null;
$max_num = null;
foreach ($values as $value) {
$value_num = $num_func($value);
if (null === $max_num || $value_num >= $max_num) {
$max = $value;
$max_num = $value_num;
}
}
return $max;
}
$c = max_by([1, 2, 3], static function(int $a): int {
return $a + mt_rand(0, $a);
});
echo $c;
',
'error_message' => 'ImpureFunctionCall',
'ignored_issues' => [],
],
'constructCallableFromClassStringArray' => [
'code' => '<?php
interface Foo {
public function bar() : int;
}
/**
* @param callable():string $c
*/
function takesCallableReturningString(callable $c) : void {
$c();
}
/**
* @param class-string<Foo> $c
*/
function foo(string $c) : void {
takesCallableReturningString([$c, "bar"]);
}',
'error_message' => 'InvalidArgument',
],
'inexistantCallableinCallableString' => [
'code' => '<?php
/**
* @param callable-string $c
*/
function c(string $c): void {
$c();
}
c("hii");',
'error_message' => 'InvalidArgument',
],
'mismatchParamTypeFromDocblock' => [
'code' => '<?php
/**
* @template A
*/
final class ArrayList
{
/**
* @template B
* @param Closure(A): B $effect
* @return ArrayList<B>
*/
public function map(Closure $effect): ArrayList
{
throw new RuntimeException("???");
}
}
/**
* @template T
* @template B
*
* @param ArrayList<T> $list
* @return ArrayList<array{T}>
*/
function genericContext(ArrayList $list): ArrayList
{
return $list->map(
/** @param B $_a */
function ($_a) {
return [$_a];
}
);
}',
'error_message' => 'InvalidArgument',
],
'callableArrayParentConstantDeprecated' => [
'code' => '<?php
class Z {
public static function hello(): void {
echo "hello";
}
}
class A extends Z {
public function __construct() {
$this->run(["parent", "hello"]);
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableParentConstantDeprecated' => [
'code' => '<?php
class Z {
public static function hello(): void {
echo "hello";
}
}
class A extends Z {
public function __construct() {
$this->run("parent::hello");
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableSelfConstantDeprecated' => [
'code' => '<?php
class A {
public function __construct() {
$this->run("self::hello");
}
public static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableStaticConstantDeprecated' => [
'code' => '<?php
class A {
public function __construct() {
$this->run("static::hello");
}
public static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableArrayStaticConstantDeprecated' => [
'code' => '<?php
class A {
public function __construct() {
$this->run(["static", "hello"]);
}
public static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'invalidFirstClassCallableCannotBeInferred' => [
'code' => '<?php
/**
* @template T1
*/
final class App
{
/**
* @param T1 $param1
*/
public function __construct(
private readonly mixed $param1,
) {}
/**
* @template T2
* @param callable(T1): T2 $callback
* @return T2
*/
public function run(callable $callback): mixed
{
return $callback($this->param1);
}
}
/**
* @template P1 of int|float
* @param P1 $param1
* @return array{param1: P1}
*/
function appHandler(mixed $param1): array
{
return ["param1" => $param1];
}
$result = (new App(param1: [42]))->run(appHandler(...));
',
'error_message' => 'InvalidArgument',
'ignored_issues' => [],
'php_version' => '8.1',
],
'variadicClosureAssignability' => [
'code' => '<?php
function add(int $a, int $b, int ...$rest): int
{
return 0;
}
/** @param Closure(int, int, string, int, int): int $f */
function int_int_string_int_int(Closure $f): void {}
/** @param Closure(int, int, int, string, int): int $f */
function int_int_int_string_int(Closure $f): void {}
/** @param Closure(int, int, int, int, string): int $f */
function int_int_int_int_string(Closure $f): void {}
int_int_string_int_int(add(...));
int_int_int_string_int(add(...));
int_int_int_int_string(add(...));',
'error_message' => 'InvalidScalarArgument',
'ignored_issues' => [],
'php_version' => '8.0',
],
'callableWithInvalidNamedArguments' => [
'code' => <<<'PHP'
<?php
/** @param callable(int $a) $c */
function f(callable $c): void {
$c(b: 1);
}
PHP,
'error_message' => 'InvalidNamedArgument',
'ignored_issues' => [],
'php_version' => '8.0',
],
'parentCallableArrayWithoutParent' => [
'code' => '<?php
class A {
public function __construct() {
$this->run(["parent", "hello"]);
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'ParentNotFound',
],
'parentCallableWithoutParent' => [
'code' => '<?php
class A {
public function __construct() {
$this->run("parent::hello");
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'ParentNotFound',
],
'wrongCallableInUnion' => [
'code' => '<?php
/**
* @param int|callable $arg
*/
function foo($arg): void {}
foo([\DateTime::class, "wrongMethod"]);',
'error_message' => 'InvalidArgument',
],
];
}
}
?>Did this file decode correctly?
Original Code
<?php
namespace Psalm\Tests;
use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait;
use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;
class CallableTest extends TestCase
{
use InvalidCodeAnalysisTestTrait;
use ValidCodeAnalysisTestTrait;
public function providerValidCodeParse(): iterable
{
return [
'byRefUseVar' => [
'code' => '<?php
/** @return void */
function run_function(\Closure $fnc) {
$fnc();
}
/**
* @return void
*/
function f() {
$data = 0;
run_function(
/**
* @return void
*/
function() use(&$data) {
$data = 1;
}
);
echo $data;
}
f();',
],
'inferredArg' => [
'code' => '<?php
$bar = ["foo", "bar"];
$bam = array_map(
function(string $a) {
return $a . "blah";
},
$bar
);',
],
'inferredArgArrowFunction' => [
'code' => '<?php
$bar = ["foo", "bar"];
$bam = array_map(
fn(string $a) => $a . "blah",
$bar
);',
'assertions' => [],
'ignored_issues' => [],
'php_version' => '7.4',
],
'inferArgFromClassContext' => [
'code' => '<?php
final class Calc
{
/**
* @param Closure(int, int): int $_fn
*/
public function __invoke(Closure $_fn): int
{
return $_fn(42, 42);
}
}
$calc = new Calc();
$a = $calc(fn($a, $b) => $a + $b);',
'assertions' => [
'$a' => 'int',
],
'ignored_issues' => [],
'php_version' => '7.4',
],
'inferArgFromClassContextWithNamedArguments' => [
'code' => '<?php
final class Calc
{
/**
* @param Closure(int, int): int ...$_fn
*/
public function __invoke(Closure ...$_fn): int
{
throw new RuntimeException("???");
}
}
$calc = new Calc();
$a = $calc(
foo: fn($_a, $_b) => $_a + $_b,
bar: fn($_a, $_b) => $_a + $_b,
baz: fn($_a, $_b) => $_a + $_b,
);',
'assertions' => [
'$a' => 'int',
],
'ignored_issues' => [],
'php_version' => '7.4',
],
'inferArgFromClassContextInGenericContext' => [
'code' => '<?php
/**
* @template A
*/
final class ArrayList
{
/**
* @template B
* @param Closure(A): B $ab
* @return ArrayList<B>
*/
public function map(Closure $ab): ArrayList
{
throw new RuntimeException("???");
}
}
/**
* @template T
* @param ArrayList<T> $list
* @return ArrayList<array{T}>
*/
function asTupled(ArrayList $list): ArrayList
{
return $list->map(function ($_a) {
return [$_a];
});
}
/** @var ArrayList<int> $a */
$a = new ArrayList();
$b = asTupled($a);',
'assertions' => [
'$b' => 'ArrayList<list{int}>',
],
],
'inferArgByPreviousMethodArg' => [
'code' => '<?php
final class ArrayList
{
/**
* @template A
* @template B
* @template C
* @param list<A> $list
* @param callable(A): B $first
* @param callable(B): C $second
* @return list<C>
*/
public function map(array $list, callable $first, callable $second): array
{
throw new RuntimeException("never");
}
}
$result = (new ArrayList())->map([1, 2, 3], fn($i) => ["num" => $i], fn($i) => ["object" => $i]);',
'assertions' => [
'$result' => 'list<array{object: array{num: int}}>',
],
],
'inferArgByPreviousFunctionArg' => [
'code' => '<?php
/**
* @template A
* @template B
*
* @param iterable<array-key, A> $_collection
* @param callable(A): B $_ab
* @return list<B>
*/
function map(iterable $_collection, callable $_ab) { return []; }
/** @template T */
final class Foo
{
/** @return Foo<int> */
public function toInt() { throw new RuntimeException("???"); }
}
/** @var list<Foo<string>> */
$items = [];
$inferred = map($items, function ($i) {
return $i->toInt();
});',
'assertions' => [
'$inferred' => 'list<Foo<int>>',
],
],
'inferTemplateForExplicitlyTypedArgByPreviousFunctionArg' => [
'code' => '<?php
/**
* @template A
* @template B
*
* @param iterable<array-key, A> $_collection
* @param callable(A): B $_ab
* @return list<B>
*/
function map(iterable $_collection, callable $_ab) { return []; }
/** @template T */
final class Foo
{
/** @return Foo<int> */
public function toInt() { throw new RuntimeException("???"); }
}
/** @var list<Foo<string>> */
$items = [];
$inferred = map($items, function (Foo $i) {
return $i->toInt();
});',
'assertions' => [
'$inferred' => 'list<Foo<int>>',
],
],
'doNotInferTemplateForExplicitlyTypedWithPhpdocArgByPreviousFunctionArg' => [
'code' => '<?php
/**
* @template A
* @template B
*
* @param iterable<array-key, A> $_collection
* @param callable(A): B $_ab
* @return list<B>
*/
function map(iterable $_collection, callable $_ab) { return []; }
/** @template T */
final class Foo { }
/** @var list<Foo<string>> */
$items = [];
$inferred = map($items,
/** @param Foo $i */
function ($i) {
return $i;
}
);',
'assertions' => [
'$inferred' => 'list<Foo>',
],
],
'inferTemplateOfHighOrderFunctionArgByPreviousArg' => [
'code' => '<?php
/**
* @return list<int>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(T): T
*/
function id() { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param list<A> $_items
* @param callable(A): B $_ab
* @return list<B>
*/
function map(array $_items, callable $_ab) { throw new RuntimeException("???"); }
$result = map(getList(), id());
',
'assertions' => [
'$result' => 'list<int>',
],
],
'inferTemplateOfHighOrderFunctionArgByPreviousArgInClassContext' => [
'code' => '<?php
/**
* @template A
*/
final class ArrayList
{
/**
* @template B
*
* @param callable(A): B $ab
* @return ArrayList<B>
*/
public function map(callable $ab) { throw new RuntimeException("???"); }
}
/**
* @return ArrayList<int>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(T): T
*/
function id() { throw new RuntimeException("???"); }
$result = getList()->map(id());
',
'assertions' => [
'$result' => 'ArrayList<int>',
],
],
'inferTemplateOfHighOrderFunctionFromMethodArgByPreviousArg' => [
'code' => '<?php
final class Ops
{
/**
* @template T
* @return Closure(list<T>): T
*/
public function flatten() { throw new RuntimeException("???"); }
}
/**
* @return list<list<int>>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(list<T>): T
*/
function flatten() { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param list<A> $_a
* @param callable(A): B $_ab
* @return list<B>
*/
function map(array $_a, callable $_ab) { throw new RuntimeException("???"); }
$ops = new Ops;
$result = map(getList(), $ops->flatten());
',
'assertions' => [
'$result' => 'list<int>',
],
],
'inferTemplateOfHighOrderFunctionFromStaticMethodArgByPreviousArg' => [
'code' => '<?php
final class StaticOps
{
/**
* @template T
* @return Closure(list<T>): T
*/
public static function flatten() { throw new RuntimeException("???"); }
}
/**
* @return list<list<int>>
*/
function getList() { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(list<T>): T
*/
function flatten() { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param list<A> $_a
* @param callable(A): B $_ab
* @return list<B>
*/
function map(array $_a, callable $_ab) { throw new RuntimeException("???"); }
$result = map(getList(), StaticOps::flatten());
',
'assertions' => [
'$result' => 'list<int>',
],
],
'inferInvokableClassCallable' => [
'code' => '<?php
/**
* @template A
* @template B
*/
final class MapOperator
{
/** @var Closure(A): B */
private Closure $ab;
/**
* @param callable(A): B $ab
*/
public function __construct(callable $ab)
{
$this->ab = Closure::fromCallable($ab);
}
/**
* @template K
* @param array<K, A> $a
* @return array<K, B>
*/
public function __invoke(array $a): array
{
$b = [];
foreach ($a as $k => $v) {
$b[$k] = ($this->ab)($v);
}
return $b;
}
}
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @return array<string, int>
*/
function getDict(): array
{
return ["fst" => 1, "snd" => 2, "thr" => 3];
}
$result = pipe(getDict(), new MapOperator(fn($i) => ["num" => $i]));
',
'assertions' => [
'$result' => 'array<string, array{num: int}>',
],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferConstCallableLikeFirstClassCallable' => [
'code' => '<?php
namespace Functions {
use Closure;
final class Module
{
const id = "Functions\Module::id";
/**
* @template A
* @param A $value
* @return A
*/
public static function id(mixed $value): mixed
{
return $value;
}
}
const classId = Module::id;
const id = "Functions\id";
/**
* @template A
* @param A $value
* @return A
*/
function id(mixed $value): mixed
{
return $value;
}
/**
* @template A
* @template B
* @param callable(A): B $callback
* @return Closure(list<A>): list<B>
*/
function map(callable $callback): Closure
{
return fn(array $list) => array_map($callback, $list);
}
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe1(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @template A
* @template B
* @template C
* @param A $a
* @param callable(A): B $ab
* @param callable(B): C $bc
* @return C
*/
function pipe2(mixed $a, callable $ab, callable $bc): mixed
{
return $bc($ab($a));
}
}
namespace App {
use Functions\Module;
use function Functions\map;
use function Functions\pipe1;
use function Functions\pipe2;
use const Functions\classId;
use const Functions\id;
$class_const_id = pipe1([42], Module::id);
$class_const_composition = pipe1([42], map(Module::id));
$class_const_sequential = pipe2([42], map(fn($i) => ["num" => $i]), Module::id);
$class_const_alias_id = pipe1([42], classId);
$class_const_alias_composition = pipe1([42], map(classId));
$class_const_alias_sequential = pipe2([42], map(fn($i) => ["num" => $i]), classId);
$const_id = pipe1([42], id);
$const_composition = pipe1([42], map(id));
$const_sequential = pipe2([42], map(fn($i) => ["num" => $i]), id);
$string_id = pipe1([42], "Functions\id");
$string_composition = pipe1([42], map("Functions\id"));
$string_sequential = pipe2([42], map(fn($i) => ["num" => $i]), "Functions\id");
$class_string_id = pipe1([42], "Functions\Module::id");
$class_string_composition = pipe1([42], map("Functions\Module::id"));
$class_string_sequential = pipe2([42], map(fn($i) => ["num" => $i]), "Functions\Module::id");
}
',
'assertions' => [
'$class_const_id===' => 'list{42}',
'$class_const_composition===' => 'list<42>',
'$class_const_sequential===' => 'list<array{num: 42}>',
'$class_const_alias_id===' => 'list{42}',
'$class_const_alias_composition===' => 'list<42>',
'$class_const_alias_sequential===' => 'list<array{num: 42}>',
'$const_id===' => 'list{42}',
'$const_composition===' => 'list<42>',
'$const_sequential===' => 'list<array{num: 42}>',
'$string_id===' => 'list{42}',
'$string_composition===' => 'list<42>',
'$string_sequential===' => 'list<array{num: 42}>',
'$class_string_id===' => 'list{42}',
'$class_string_composition===' => 'list<42>',
'$class_string_sequential===' => 'list<array{num: 42}>',
],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferPipelineWithPartiallyAppliedFunctions' => [
'code' => '<?php
/**
* @template T
*
* @param callable(T, int): bool $_predicate
* @return Closure(list<T>): list<T>
*/
function filter(callable $_predicate): Closure { throw new RuntimeException("???"); }
/**
* @template A
* @template B
*
* @param callable(A): B $_ab
* @return Closure(list<A>): list<B>
*/
function map(callable $_ab): Closure { throw new RuntimeException("???"); }
/**
* @template T
* @return (Closure(list<T>): (non-empty-list<T> | null))
*/
function asNonEmptyList(): Closure { throw new RuntimeException("???"); }
/**
* @template T
* @return Closure(T): T
*/
function id(): Closure { throw new RuntimeException("???"); }
/**
* @template A
* @template B
* @template C
* @template D
* @template E
* @template F
*
* @param A $arg
* @param callable(A): B $ab
* @param callable(B): C $bc
* @param callable(C): D $cd
* @param callable(D): E $de
* @param callable(E): F $ef
* @return F
*/
function pipe4(mixed $arg, callable $ab, callable $bc, callable $cd, callable $de, callable $ef): mixed
{
return $ef($de($cd($bc($ab($arg)))));
}
/**
* @template TFoo of string
* @template TBar of bool
*/
final class Item
{
/**
* @param TFoo $foo
* @param TBar $bar
*/
public function __construct(
public string $foo,
public bool $bar,
) { }
}
/**
* @return list<Item>
*/
function getList(): array { return []; }
$result = pipe4(
getList(),
filter(fn($i) => $i->bar),
filter(fn(Item $i) => $i->foo !== "bar"),
map(fn($i) => new Item("test: " . $i->foo, $i->bar)),
asNonEmptyList(),
id(),
);',
'assertions' => [
'$result' => 'non-empty-list<Item<string, bool>>|null',
],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferPipelineWithPartiallyAppliedFunctionsAndFirstClassCallable' => [
'code' => '<?php
/**
* @template T
* @param T $value
* @return T
*/
function id(mixed $value): mixed
{
return $value;
}
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @template A
* @template B
* @param callable(A): B $callback
* @return Closure(list<A>): list<B>
*/
function map(callable $callback): Closure
{
return fn($array) => array_map($callback, $array);
}
/**
* @return list<int>
*/
function getNums(): array
{
return [];
}
/**
* @template T of float|int
*/
final class ObjectNum
{
/**
* @psalm-param T $value
*/
public function __construct(
public readonly float|int $value,
) {}
}
/**
* @return list<ObjectNum<int>>
*/
function getObjectNums(): array
{
return [];
}
$id = pipe(getNums(), id(...));
$wrapped_id = pipe(getNums(), map(id(...)));
$id_nested = pipe(getObjectNums(), map(id(...)));
$id_nested_simple = pipe(getObjectNums(), id(...));
',
'assertions' => [
'$id' => 'list<int>',
'$wrapped_id' => 'list<int>',
'$id_nested' => 'list<ObjectNum<int>>',
'$id_nested_simple' => 'list<ObjectNum<int>>',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableWithGenericObject' => [
'code' => '<?php
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe($a, callable $ab)
{
return $ab($a);
}
/**
* @template A
* @psalm-immutable
*/
final class Container
{
/** @param A $value */
public function __construct(
public readonly mixed $value,
) {}
}
/**
* @template A
* @param Container<A> $container
* @return A
*/
function unwrap(Container $container)
{
return $container->value;
}
$result = pipe(
new Container(42),
unwrap(...),
);
',
'assertions' => [
'$result===' => '42',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableOnMethodCall' => [
'code' => '<?php
/**
* @template A
* @template B
*/
final class Processor
{
/**
* @param A $a
* @param B $b
*/
public function __construct(
public readonly mixed $a,
public readonly mixed $b,
) {}
/**
* @template AProcessed
* @template BProcessed
* @param callable(A): AProcessed $processA
* @param callable(B): BProcessed $processB
* @return list{AProcessed, BProcessed}
*/
public function process(callable $processA, callable $processB): array
{
return [$processA($this->a), $processB($this->b)];
}
}
/**
* @template A
* @param A $value
* @return A
*/
function id(mixed $value): mixed
{
return $value;
}
function intToString(int $value): string
{
return (string) $value;
}
/**
* @template A
* @param A $value
* @return list{A}
*/
function singleToList(mixed $value): array
{
return [$value];
}
$processor = new Processor(a: 1, b: 2);
$test_id = $processor->process(id(...), id(...));
$test_complex = $processor->process(intToString(...), singleToList(...));
',
'assertions' => [
'$test_id' => 'list{int, int}',
'$test_complex' => 'list{string, list{int}}',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableOnMethodCallWithMultipleParams' => [
'code' => '<?php
/**
* @template A
* @template B
* @template C
*/
final class Processor
{
/**
* @param A $a
* @param B $b
* @param C $c
*/
public function __construct(
public readonly mixed $a,
public readonly mixed $b,
public readonly mixed $c,
) {}
/**
* @template AProcessed
* @template BProcessed
* @template CProcessed
* @param callable(A, B, C): list{AProcessed, BProcessed, CProcessed} $processAB
* @return list{AProcessed, BProcessed, CProcessed}
*/
public function process(callable $processAB): array
{
return $processAB($this->a, $this->b, $this->c);
}
}
/**
* @template A
* @template B
* @template C
* @param A $value1
* @param B $value2
* @param C $value3
* @return list{A, B, C}
*/
function tripleId(mixed $value1, mixed $value2, mixed $value3): array
{
return [$value1, $value2, $value3];
}
$processor = new Processor(a: 1, b: 2, c: 3);
$test = $processor->process(tripleId(...));
',
'assertions' => [
'$test' => 'list{int, int, int}',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferFirstClassCallableOnMethodCallWithTemplatedAndNonTemplatedParams' => [
'code' => '<?php
/**
* @template T1
* @template T2
*/
final class App
{
/**
* @param T1 $param1
* @param T2 $param2
*/
public function __construct(
private readonly mixed $param1,
private readonly mixed $param2,
) {
}
/**
* @template T3
* @param callable(T1, T2): T3 $callback
* @return T3
*/
public function run(callable $callback): mixed
{
return $callback($this->param1, $this->param2);
}
}
/**
* @template T of int|float
* @param T $param2
* @return array{param1: int, param2: T}
*/
function appHandler1(int $param1, int|float $param2): array
{
return ["param1" => $param1, "param2" => $param2];
}
/**
* @template T of int|float
* @param T $param1
* @return array{param1: T, param2: int}
*/
function appHandler2(int|float $param1, int $param2): array
{
return ["param1" => $param1, "param2" => $param2];
}
/**
* @return array{param1: int, param2: int}
*/
function appHandler3(int $param1, int $param2): array
{
return ["param1" => $param1, "param2" => $param2];
}
$app = new App(param1: 42, param2: 42);
$result1 = $app->run(appHandler1(...));
$result2 = $app->run(appHandler2(...));
$result3 = $app->run(appHandler3(...));
',
'assertions' => [
'$result1===' => 'array{param1: int, param2: 42}',
'$result2===' => 'array{param1: 42, param2: int}',
'$result3===' => 'array{param1: int, param2: int}',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'inferTypeWhenClosureParamIsOmitted' => [
'code' => '<?php
/**
* @template A
* @template B
* @param A $a
* @param callable(A): B $ab
* @return B
*/
function pipe(mixed $a, callable $ab): mixed
{
return $ab($a);
}
/**
* @template A
* @param callable(A): void $callback
* @return Closure(list<A>): list<A>
*/
function iterate(callable $callback): Closure
{
return function(array $list) use ($callback) {
foreach ($list as $item) {
$callback($item);
}
return $list;
};
}
$result1 = pipe(
[1, 2, 3],
iterate(fn($i) => print_r($i)),
);
$result2 = pipe(
[1, 2, 3],
iterate(fn() => print_r("noop")),
);',
'assertions' => [
'$result1===' => 'list<1|2|3>',
'$result2===' => 'list<1|2|3>',
],
'ignored_issues' => [],
'php_version' => '8.1',
],
'varReturnType' => [
'code' => '<?php
$add_one = function(int $a) : int {
return $a + 1;
};
$a = $add_one(1);',
'assertions' => [
'$a' => 'int',
],
],
'varReturnTypeArray' => [
'code' => '<?php
$add_one = fn(int $a) : int => $a + 1;
$a = $add_one(1);',
'assertions' => [
'$a' => 'int',
],
'ignored_issues' => [],
'php_version' => '7.4',
],
'varCallableParamReturnType' => [
'code' => '<?php
$add_one = function(int $a): int {
return $a + 1;
};
/**
* @param callable(int) : int $c
*/
function bar(callable $c) : int {
return $c(1);
}
bar($add_one);',
],
'callableToClosure' => [
'code' => '<?php
/**
* @return callable
*/
function foo() {
return function(string $a): string {
return $a . "blah";
};
}',
],
'callableToClosureArrow' => [
'code' => '<?php
/**
* @return callable
*/
function foo() {
return fn(string $a): string => $a . "blah";
}',
'assertions' => [],
'ignored_issues' => [],
'php_version' => '7.4',
],
'callable' => [
'code' => '<?php
function foo(callable $c): void {
echo (string)$c();
}',
],
'callableClass' => [
'code' => '<?php
class C {
public function __invoke(): string {
return "You ran?";
}
}
function foo(callable $c): void {
echo (string)$c();
}
foo(new C());
$c2 = new C();
$c2();',
],
'invokeMethodExists' => [
'code' => '<?php
function call(object $obj): void {
if (!method_exists($obj, "__invoke")) {
return;
}
$obj();
}',
],
'correctParamType' => [
'code' => '<?php
$take_string = function(string $s): string { return $s; };
$take_string("string");',
],
'callableMethodStringCallable' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo("A::bar");
foo(A::class . "::bar");',
],
'callableMethodArrayCallable' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(["A", "bar"]);
foo([A::class, "bar"]);
$a = new A();
foo([$a, "bar"]);',
],
'callableMethodArrayCallableMissingTypes' => [
'code' => '<?php
function foo(callable $c): void {}
/** @psalm-suppress MissingParamType */
function bar($a, $b) : void {
foo([$a, $b]);
}',
],
'arrayMapCallableMethod' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function baz(string $a): string {
return $a . "b";
}
$a = array_map("A::bar", ["one", "two"]);
$b = array_map(["A", "bar"], ["one", "two"]);
$c = array_map([A::class, "bar"], ["one", "two"]);
$d = array_map([new A(), "bar"], ["one", "two"]);
$a_instance = new A();
$e = array_map([$a_instance, "bar"], ["one", "two"]);
$f = array_map("baz", ["one", "two"]);',
'assertions' => [
'$a' => 'list{string, string}',
'$b' => 'list{string, string}',
'$c' => 'list{string, string}',
'$d' => 'list{string, string}',
'$e' => 'list{string, string}',
'$f' => 'list{string, string}',
],
],
'arrayCallableMethod' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(["A", "bar"]);',
],
'callableFunction' => [
'code' => '<?php
function foo(callable $c): void {}
foo("trim");',
],
'inlineCallableFunction' => [
'code' => '<?php
class A {
function bar(): void {
function foobar(int $a, int $b): int {
return $a > $b ? 1 : 0;
}
$arr = [5, 4, 3, 1, 2];
usort($arr, "fooBar");
}
}',
],
'closureSelf' => [
'code' => '<?php
class A
{
/**
* @var self[]
*/
private $subitems;
/**
* @param self[] $in
*/
public function __construct(array $in = [])
{
array_map(function(self $i): self { return $i; }, $in);
$this->subitems = array_map(
function(self $i): self {
return $i;
},
$in
);
}
}
new A([new A, new A]);',
],
'possiblyUndefinedFunction' => [
'code' => '<?php
/**
* @param string|callable $middlewareOrPath
*/
function pipe($middlewareOrPath, ?callable $middleware = null): void { }
pipe("zzzz", function() : void {});',
],
'callableWithNonInvokable' => [
'code' => '<?php
function asd(): void {}
class B {}
/**
* @param callable|B $p
*/
function passes($p): void {}
passes("asd");',
],
'callableWithInvokable' => [
'code' => '<?php
function asd(): void {}
class A { public function __invoke(): void {} }
/**
* @param callable|A $p
*/
function fails($p): void {}
fails("asd");',
],
'isCallableArray' => [
'code' => '<?php
class A
{
public function callMeMaybe(string $method): void
{
$handleMethod = [$this, $method];
if (is_callable($handleMethod)) {
$handleMethod();
}
}
public function foo(): void {}
}
$a = new A();
$a->callMeMaybe("foo");',
],
'isCallableString' => [
'code' => '<?php
function foo(): void {}
function callMeMaybe(string $method): void {
if (is_callable($method)) {
$method();
}
}
callMeMaybe("foo");',
],
'allowVoidCallable' => [
'code' => '<?php
/**
* @param callable():void $p
*/
function doSomething($p): void {}
doSomething(function(): bool { return false; });',
],
'callableProperties' => [
'code' => '<?php
class C {
/** @psalm-var callable():bool */
private $callable;
/**
* @psalm-param callable():bool $callable
*/
public function __construct(callable $callable) {
$this->callable = $callable;
}
public function callTheCallableDirectly(): bool {
return ($this->callable)();
}
public function callTheCallableIndirectly(): bool {
$r = $this->callable;
return $r();
}
}',
],
'invokableProperties' => [
'code' => '<?php
class A {
public function __invoke(): bool { return true; }
}
class C {
/** @var A $invokable */
private $invokable;
public function __construct(A $invokable) {
$this->invokable = $invokable;
}
public function callTheInvokableDirectly(): bool {
return ($this->invokable)();
}
public function callTheInvokableIndirectly(): bool {
$r = $this->invokable;
return $r();
}
}',
],
'nullableReturnTypeShorthand' => [
'code' => '<?php
class A {}
/** @param callable(mixed):?A $a */
function foo(callable $a): void {}',
],
'callablesCanBeObjects' => [
'code' => '<?php
function foo(callable $c) : void {
if (is_object($c)) {
$c();
}
}',
],
'objectsCanBeCallable' => [
'code' => '<?php
function foo(object $c) : void {
if (is_callable($c)) {
$c();
}
}',
],
'unionCanBeCallable' => [
'code' => '<?php
class A {}
class B {
public function __invoke() : string {
return "hello";
}
}
/**
* @param A|B $c
*/
function foo($c) : void {
if (is_callable($c)) {
$c();
}
}',
],
'goodCallableArgs' => [
'code' => '<?php
/**
* @param callable(string,string):int $_p
*/
function f(callable $_p): void {}
class C {
public static function m(string $a, string $b): int { return $a <=> $b; }
}
f("strcmp");
f([new C, "m"]);
f([C::class, "m"]);',
],
'callableWithSpaces' => [
'code' => '<?php
/**
* @param callable(string, string) : int $p
*/
function f(callable $p): void {}',
],
'fileExistsCallable' => [
'code' => '<?php
/**
* @param non-empty-string $prospective_file_path
* @return non-empty-string[]
*/
function foo(string $prospective_file_path) : array {
return array_filter(
glob($prospective_file_path),
"file_exists"
);
}',
],
'callableSelfArg' => [
'code' => '<?php
class C extends B {}
$b = new B();
$c = new C();
$b->func2(function(B $x): void {});
$c->func2(function(B $x): void {});
class A {}
class B extends A {
/**
* @param callable(self) $f
*/
function func2(callable $f): void {
$f($this);
}
}',
],
'callableParentArg' => [
'code' => '<?php
class C extends B {}
$b = new B();
$c = new C();
$b->func3(function(A $x): void {});
$c->func3(function(A $x): void {});
class A {}
class B extends A {
/**
* @param callable(parent) $f
*/
function func3(callable $f): void {
$f($this);
}
}',
],
'callableStaticArg' => [
'code' => '<?php
class C extends B {}
$b = new B();
$c = new C();
$b->func1(function(B $x): void {});
$c->func1(function(C $x): void {});
class A {}
class B extends A {
/**
* @param callable(static) $f
*/
function func1(callable $f): void {
$f($this);
}
}',
],
'callableStaticReturn' => [
'code' => '<?php
class A {}
class B extends A {
/**
* @param callable():static $f
*/
function func1(callable $f): void {}
}
final class C extends B {}
$c = new C();
$c->func1(function(): C { return new C(); });',
],
'callableSelfReturn' => [
'code' => '<?php
class A {}
class B extends A {
/**
* @param callable():self $f
*/
function func2(callable $f): void {}
}
final class C extends B {}
$b = new B();
$c = new C();
$b->func2(function() { return new B(); });
$c->func2(function() { return new C(); });',
],
'callableParentReturn' => [
'code' => '<?php
class A {}
class B extends A {
/**
* @param callable():parent $f
*/
function func3(callable $f): void {}
}
$b = new B();
$b->func3(function() { return new A(); });',
],
'selfArrayMapCallableWrongClass' => [
'code' => '<?php
class Foo {
public function __construct(int $param) {}
public static function foo(int $param): Foo {
return new self($param);
}
public static function baz(int $param): self {
return new self($param);
}
}
class Bar {
/**
* @return array<int, Foo>
*/
public function bar() {
return array_map([Foo::class, "foo"], [1,2,3]);
}
/** @return array<int, Foo> */
public function bat() {
return array_map([Foo::class, "baz"], [1]);
}
}',
],
'dynamicCallableArray' => [
'code' => '<?php
class A {
/** @var string */
private $value = "default";
private function modify(string $name, string $value): void {
call_user_func([$this, "modify" . $name], $value);
}
public function modifyFoo(string $value): void {
$this->value = $value;
}
}',
],
'callableIsArrayAssertion' => [
'code' => '<?php
function foo(callable $c) : void {
if (is_array($c)) {
echo $c[1];
}
}',
],
'callableOrArrayIsArrayAssertion' => [
'code' => '<?php
/**
* @param callable|array $c
*/
function foo($c) : void {
if (is_array($c) && isset($c[1]) && is_string($c[1])) {
echo $c[1];
}
}',
],
'dontInferMethodIdWhenFormatDoesntFit' => [
'code' => '<?php
/** @param string|callable $p */
function f($p): array {
return [];
}
f("#b::a");',
],
'removeCallableAssertionAfterReassignment' => [
'code' => '<?php
function foo(string $key) : void {
$setter = "a" . $key;
if (is_callable($setter)) {
return;
}
$setter = "b" . $key;
if (is_callable($setter)) {}
}',
],
'noExceptionOnSelfString' => [
'code' => '<?php
class Fish {
public static function example(array $vals): void {
usort($vals, ["self", "compare"]);
}
/**
* @param mixed $a
* @param mixed $b
*/
public static function compare($a, $b): int {
return -1;
}
}',
],
'noFatalErrorOnClassWithSlash' => [
'code' => '<?php
class Func {
public function __construct(string $name, callable $callable) {}
}
class Foo {
public static function bar(): string { return "asd"; }
}
new Func("f", ["\Foo", "bar"]);',
],
'staticReturningCallable' => [
'code' => '<?php
abstract class Id
{
/**
* @var string
*/
private $id;
final protected function __construct(string $id)
{
$this->id = $id;
}
/**
* @return static
*/
final public static function fromString(string $id): self
{
return new static($id);
}
}
final class CriterionId extends Id
{
}
final class CriterionIds
{
/**
* @psalm-var non-empty-list<CriterionId>
*/
private $ids;
/**
* @psalm-param non-empty-list<CriterionId> $ids
*/
private function __construct(array $ids)
{
$this->ids = $ids;
}
/**
* @psalm-param non-empty-list<string> $ids
*/
public static function fromStrings(array $ids): self
{
return new self(array_map([CriterionId::class, "fromString"], $ids));
}
}',
],
'offsetOnCallable' => [
'code' => '<?php
function c(callable $c) : void {
if (is_array($c)) {
new ReflectionClass($c[0]);
}
}',
],
'destructureCallableArray' => [
'code' => '<?php
function getCallable(): callable {
return [DateTimeImmutable::class, "createFromFormat"];
}
$callable = getCallable();
if (!is_array($callable)) {
exit;
}
[$classOrObject, $method] = $callable;',
'assertions' => [
'$classOrObject' => 'class-string|object',
'$method' => 'string',
],
],
'callableInterface' => [
'code' => '<?php
interface CallableInterface{
public function __invoke(): bool;
}
function takesInvokableInterface(CallableInterface $c): void{
takesCallable($c);
}
function takesCallable(callable $c): void {
$c();
}',
],
'notCallableArrayNoUndefinedClass' => [
'code' => '<?php
/**
* @psalm-param array|callable $_fields
*/
function f($_fields): void {}
f(["instance_date" => "ASC", "start_time" => "ASC"]);',
],
'callOnInvokableOrCallable' => [
'code' => '<?php
interface Callback {
public function __invoke(): void;
}
/** @var Callback|callable */
$test = function (): void {};
$test();',
],
'resolveTraitClosureReturn' => [
'code' => '<?php
class B {
/**
* @psalm-param callable(mixed...):static $i
*/
function takesACall(callable $i) : void {}
public function call() : void {
$this->takesACall(function() {return $this;});
}
}',
],
'returnClosureReturningStatic' => [
'code' => '<?php
/**
* @psalm-consistent-constructor
*/
class C {
/**
* @return Closure():static
*/
public static function foo() {
return function() {
return new static();
};
}
}',
],
'returnsVoidAcceptableForNullable' => [
'code' => '<?php
/** @param callable():?bool $c */
function takesCallable(callable $c) : void {}
takesCallable(function() { return; });',
],
'callableMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public static function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
],
'callableMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
],
'callableClassStringArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public static function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
],
'callableClassStringMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public static function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
],
'callableInClassStringArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInClassConstantArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInClassStringMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodOutOfClassContextNonStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodOutOfClassContextStaticPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
public static function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func(array($this, "hello"));
}
private function hello(): void {
echo "hello";
}
}',
],
'callableClassStringArrayMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func(array(Foo::class, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
],
'callableClassLiteralStringMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func("Foo::hello");
}
protected function hello(): void {
echo "hello";
}
}',
],
'callableClassConstantArrayMethodClassContextPhpNativeNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
call_user_func(array(__CLASS__, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
],
'callableInstanceArrayMethodClassContextNonStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableInstanceArrayMethodClassContextNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array($this, "hello"));
}
protected function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
private function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableClassConstantArrayMethodClassContextStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array(Foo::class, "hello"));
}
protected static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
private function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableClassConstantArrayMethodClassContextNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$this->run_in_c(array(Foo::class, "hello"));
}
protected function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
private function run_in_c($callable) {
call_user_func($callable);
}
}',
],
'callableClassStringArrayMethodOtherClassContextStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array(Foo::class, "hello"));
}
public static function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}
',
],
'callableInstanceArrayMethodOtherClassContextNonStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array($this, "hello"));
}
public function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}
',
],
'callableClassLiteralStringMethodOtherClassContextStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c("Foo::hello");
}
public static function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}
',
],
# @todo valid
'notCallableListNoUndefinedClass' => [
'code' => '<?php
/**
* @param array|callable $arg
*/
function foo($arg): void {}
foo(["a", "b"]);',
],
'notCallableArray' => [
'code' => '<?php
/**
* @param array{class-string, string}|callable $arg
*/
function foo($arg): void {}
foo([\DateTime::class, "format"]);',
],
'notCallableString' => [
'code' => '<?php
/**
* @param string|callable $arg
*/
function foo($arg): void {}
foo("notACallable");',
],
'callableOptionalOrAdditionalOptional' => [
'code' => '<?php
/**
* @param callable(string, string, string, string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c, string $d = ""): bool {}
foo("bar");
/**
* @param callable(string, string, string):bool $arg
* @return void
*/
function foo1($arg) {}
function bar1(string $a, string $b, string $c, string $d = ""): bool {}
foo1("bar1");',
'assertions' => [],
'ignored_issues' => ['InvalidReturnType'],
],
'abstractInvokeInTrait' => [
'code' => '<?php
function testFunc(callable $func) : void {}
trait TestTrait {
abstract public function __invoke() : void;
public function apply() : void {
testFunc($this);
}
}
abstract class TestClass {
use TestTrait;
}',
],
'variadicClosureAssignability' => [
'code' => '<?php
function withVariadic(int $a, int $b, int ...$rest): int
{
return 0;
}
/** @param Closure(int, int): int $f */
function int_int(Closure $f): void {}
/** @param Closure(int, int, int): int $f */
function int_int_int(Closure $f): void {}
/** @param Closure(int, int, int, int): int $f */
function int_int_int_int(Closure $f): void {}
int_int(withVariadic(...));
int_int_int(withVariadic(...));
int_int_int_int(withVariadic(...));',
'assertions' => [],
'ignored_issues' => [],
'php_version' => '8.0',
],
'inferTypeWithNestedTemplatesAndExplicitTypeHint' => [
'code' => '<?php
/**
* @template TResult
*/
interface Message {}
/**
* @implements Message<list<int>>
*/
final class GetListOfNumbers implements Message {}
/**
* @template TResult
* @template TMessage of Message<TResult>
*/
final class Envelope {}
/**
* @template TResult
* @template TMessage of Message<TResult>
* @param class-string<TMessage> $_message
* @param callable(TMessage, Envelope<TResult, TMessage>): TResult $_handler
*/
function addHandler(string $_message, callable $_handler): void {}
addHandler(GetListOfNumbers::class, function (Message $_message, Envelope $_envelope) {
/**
* @psalm-check-type-exact $_message = GetListOfNumbers
* @psalm-check-type-exact $_envelope = Envelope<list<int>, GetListOfNumbers>
*/
return [1, 2, 3];
});',
],
'unsealedAllOptionalCbParam' => [
'code' => '<?php
/**
* @param callable(array<string, string>) $arg
* @return void
*/
function foo($arg) {}
/**
* @param array{a?: string}&array<string, string> $cb_arg
* @return void
*/
function bar($cb_arg) {}
foo("bar");',
],
'callableWithNamedArguments' => [
'code' => <<<'PHP'
<?php
/** @param callable(int $i) $c */
function f(callable $c): void {
$c(i: 1);
}
PHP,
'assertions' => [],
'ignored_issues' => [],
'php_version' => '8.0',
],
'callableArrayPassedAsCallable' => [
'code' => <<<'PHP'
<?php
function f(callable $c): void {
$c();
}
/** @var object $o */;
$ca = [$o::class, 'createFromFormat'];
if (!is_callable($ca)) {
exit;
}
f($ca);
PHP,
],
];
}
public function providerInvalidCodeParse(): iterable
{
return [
'undefinedCallableClass' => [
'code' => '<?php
class A {
public function getFoo(): Foo
{
return new Foo([]);
}
/**
* @param mixed $argOne
* @param mixed $argTwo
* @return void
*/
public function bar($argOne, $argTwo)
{
$this->getFoo()($argOne, $argTwo);
}
}',
'error_message' => 'InvalidFunctionCall',
'ignored_issues' => ['UndefinedClass', 'MixedInferredReturnType'],
],
'undefinedCallableMethodFullString' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo("A::barr");',
'error_message' => 'UndefinedMethod',
],
'undefinedCallableMethodClassConcat' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(A::class . "::barr");',
'error_message' => 'UndefinedMethod',
],
'undefinedCallableMethodArray' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo([A::class, "::barr"]);',
'error_message' => 'InvalidArgument',
],
'undefinedCallableMethodArrayWithoutClass' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo(["A", "::barr"]);',
'error_message' => 'InvalidArgument',
],
'undefinedCallableMethodClass' => [
'code' => '<?php
class A {
public static function bar(string $a): string {
return $a . "b";
}
}
function foo(callable $c): void {}
foo("B::bar");',
'error_message' => 'UndefinedClass',
],
'undefinedCallableFunction' => [
'code' => '<?php
function foo(callable $c): void {}
foo("trime");',
'error_message' => 'UndefinedFunction',
],
'stringFunctionCall' => [
'code' => '<?php
$bad_one = "hello";
$a = $bad_one(1);',
'error_message' => 'MixedAssignment',
],
'wrongCallableReturnType' => [
'code' => '<?php
$add_one = function(int $a): int {
return $a + 1;
};
/**
* @param callable(int) : int $c
*/
function bar(callable $c) : string {
return $c(1);
}
bar($add_one);',
'error_message' => 'InvalidReturnStatement',
],
'checkCallableTypeString' => [
'code' => '<?php
/**
* @param callable(int,int):int $_p
*/
function f(callable $_p): void {}
f("strcmp");',
'error_message' => 'InvalidScalarArgument',
],
'checkCallableTypeArrayInstanceFirstArg' => [
'code' => '<?php
/**
* @param callable(int,int):int $_p
*/
function f(callable $_p): void {}
class C {
public static function m(string $a, string $b): int { return $a <=> $b; }
}
f([new C, "m"]);',
'error_message' => 'InvalidScalarArgument',
],
'checkCallableTypeArrayClassStringFirstArg' => [
'code' => '<?php
/**
* @param callable(int,int):int $_p
*/
function f(callable $_p): void {}
class C {
public static function m(string $a, string $b): int { return $a <=> $b; }
}
f([C::class, "m"]);',
'error_message' => 'InvalidScalarArgument',
],
'callableWithSpaceAfterColonBadVarArg' => [
'code' => '<?php
class C {
/**
* @var callable(string, string): bool $p
*/
public $p;
public function __construct() {
$this->p = function (string $s, string $t): stdClass {
return new stdClass;
};
}
}',
'error_message' => 'InvalidPropertyAssignmentValue',
],
'callableWithSpaceBeforeColonBadVarArg' => [
'code' => '<?php
class C {
/**
* @var callable(string, string) :bool $p
*/
public $p;
public function __construct() {
$this->p = function (string $s, string $t): stdClass {
return new stdClass;
};
}
}',
'error_message' => 'InvalidPropertyAssignmentValue',
],
'callableWithSpacesEitherSideOfColonBadVarArg' => [
'code' => '<?php
class C {
/**
* @var callable(string, string) : bool $p
*/
public $p;
public function __construct() {
$this->p = function (string $s, string $t): stdClass {
return new stdClass;
};
}
}',
'error_message' => 'InvalidPropertyAssignmentValue',
],
'badArrayMapArrayCallable' => [
'code' => '<?php
class one { public function two(string $_p): void {} }
array_map(["two", "three"], ["one", "two"]);',
'error_message' => 'InvalidArgument',
],
'noFatalErrorOnMissingClassWithSlash' => [
'code' => '<?php
class Func {
public function __construct(string $name, callable $callable) {}
}
new Func("f", ["\Foo", "bar"]);',
'error_message' => 'InvalidArgument',
],
'noFatalErrorOnMissingClassWithoutSlash' => [
'code' => '<?php
class Func {
public function __construct(string $name, callable $callable) {}
}
new Func("f", ["Foo", "bar"]);',
'error_message' => 'InvalidArgument',
],
'invalidArrayCallable' => [
'code' => '<?php
function foo(callable $callback) : void {
$callback();
}
final class Bar {
public static function baz() : void {}
}
foo([Bar::class, "baz", 1231233]);',
'error_message' => 'InvalidArgument',
],
'callableMissingOptional' => [
'code' => '<?php
/**
* @param callable(string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(): bool {
return rand(0, 10) > 5 ? true : false;
}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
],
'callableMissingOptionalThisArray' => [
'code' => '<?php
/**
* @param callable(string=):bool $arg
* @return void
*/
function foo($arg) {}
class A {
public function __construct() {
foo([$this, "bar"]);
}
public function bar(): bool {
return true;
}
}',
'error_message' => 'PossiblyInvalidArgument',
],
'callableMissingOptionalVariableInstanceArray' => [
'code' => '<?php
/**
* @param callable(string=):bool $arg
* @return void
*/
function foo($arg) {}
class A {
public function bar(): bool {
return true;
}
}
$a_instance = new A();
$y = [$a_instance, "bar"];
foo($y);',
'error_message' => 'PossiblyInvalidArgument',
],
'callableMissingOptionalMultipleParams' => [
'code' => '<?php
/**
* @param callable(string, string, string, string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c): bool {}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'callableMissingRequiredMultipleParams' => [
'code' => '<?php
/**
* @param callable(string, string, string, string):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c): bool {}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'callableAdditionalRequiredParam' => [
'code' => '<?php
/**
* @param callable(string, string, string):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c, string $d): bool {}
foo("bar");',
'error_message' => 'InvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'callableMultipleParamsWithOptional' => [
'code' => '<?php
/**
* @param callable(string, string, string=):bool $arg
* @return void
*/
function foo($arg) {}
function bar(string $a, string $b, string $c): bool {}
foo("bar");',
'error_message' => 'PossiblyInvalidArgument',
'ignored_issues' => ['InvalidReturnType'],
],
'preventStringDocblockType' => [
'code' => '<?php
/**
* @param string $mapper
*/
function map2(callable $mapper): void {}
map2("foo");',
'error_message' => 'MismatchingDocblockParamType',
],
'moreSpecificCallable' => [
'code' => '<?php
/** @param callable(string):void $c */
function takesSpecificCallable(callable $c) : void {
$c("foo");
}
function takesCallable(callable $c) : void {
takesSpecificCallable($c);
}',
'error_message' => 'MixedArgumentTypeCoercion',
],
'undefinedVarInBareCallable' => [
'code' => '<?php
$fn = function(int $a): void{};
function a(callable $fn): void{
$fn(++$a);
}
a($fn);',
'error_message' => 'UndefinedVariable',
],
'dontQualifyStringCallables' => [
'code' => '<?php
namespace NS;
function ff() : void {}
function run(callable $f) : void {
$f();
}
run("ff");',
'error_message' => 'UndefinedFunction',
],
'badCustomFunction' => [
'code' => '<?php
/**
* @param callable(int):bool $func
*/
function takesFunction(callable $func) : void {}
function myFunction( string $foo ) : bool {
return false;
}
takesFunction("myFunction");',
'error_message' => 'InvalidScalarArgument',
],
'emptyCallable' => [
'code' => '<?php
$a = "";
$a();',
'error_message' => 'InvalidFunctionCall',
],
'callableMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
private static function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
protected function hello(): void {
echo "hello";
}
}
$foo = new Foo();
run(array($foo, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
private static function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
protected function hello(): void {
echo "hello";
}
}
run(array(Foo::class, "hello"));',
'error_message' => 'InvalidArgument',
],
'callableClassStringMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
'error_message' => 'InvalidArgument',
],
'callableClassStringMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
private static function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
'error_message' => 'InvalidArgument',
],
'callableClassStringMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
protected function hello(): void {
echo "hello";
}
}
run("Foo::hello");',
'error_message' => 'InvalidArgument',
],
'callableInClassStringArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(Foo::class, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassLiteralStringArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array("Foo", "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassConstantArrayMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassConstantArrayMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassConstantArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array(__CLASS__, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringMethodOutOfClassContextNonStatic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
public function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringMethodOutOfClassContextNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
private static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInClassStringMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run("Foo::hello");
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodClassContextPhpNativeUnsupportedNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
header_register_callback(array($this, "hello"));
}
private function hello(): void {
header("X-Test: hello");
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodOutOfClassContextNonStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
protected function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodOutOfClassContextStaticNonPublic' => [
'code' => '<?php
/**
* @param callable $callable
* @return void
*/
function run($callable) {
call_user_func($callable);
}
class Foo {
public function __construct() {
run(array($this, "hello"));
}
protected static function hello(): void {
echo "hello";
}
}',
'error_message' => 'InvalidArgument',
],
'callableClassStringArrayMethodOtherClassContextNonStaticPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array(Foo::class, "hello"));
}
public function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
'error_message' => 'InvalidArgument',
],
'callableInstanceArrayMethodOtherClassContextNonStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c(array($this, "hello"));
}
protected function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
'error_message' => 'InvalidArgument',
],
'callableClassLiteralStringMethodOtherClassContextStaticNonPublic' => [
'code' => '<?php
class Foo {
public function __construct() {
$bar = new Bar();
$bar->run_in_c("Foo::hello");
}
protected static function hello(): void {
echo "hello";
}
}
class Bar {
/**
* @param callable $callable
* @return void
*/
public function run_in_c($callable) {
call_user_func($callable);
}
}',
'error_message' => 'InvalidArgument',
],
# @todo invalid
'ImpureFunctionCall' => [
'code' => '<?php
/**
* @psalm-template T
*
* @psalm-param array<int, T> $values
* @psalm-param (callable(T): numeric) $num_func
*
* @psalm-return null|T
*
* @psalm-pure
*/
function max_by(array $values, callable $num_func)
{
$max = null;
$max_num = null;
foreach ($values as $value) {
$value_num = $num_func($value);
if (null === $max_num || $value_num >= $max_num) {
$max = $value;
$max_num = $value_num;
}
}
return $max;
}
$c = max_by([1, 2, 3], static function(int $a): int {
return $a + mt_rand(0, $a);
});
echo $c;
',
'error_message' => 'ImpureFunctionCall',
'ignored_issues' => [],
],
'constructCallableFromClassStringArray' => [
'code' => '<?php
interface Foo {
public function bar() : int;
}
/**
* @param callable():string $c
*/
function takesCallableReturningString(callable $c) : void {
$c();
}
/**
* @param class-string<Foo> $c
*/
function foo(string $c) : void {
takesCallableReturningString([$c, "bar"]);
}',
'error_message' => 'InvalidArgument',
],
'inexistantCallableinCallableString' => [
'code' => '<?php
/**
* @param callable-string $c
*/
function c(string $c): void {
$c();
}
c("hii");',
'error_message' => 'InvalidArgument',
],
'mismatchParamTypeFromDocblock' => [
'code' => '<?php
/**
* @template A
*/
final class ArrayList
{
/**
* @template B
* @param Closure(A): B $effect
* @return ArrayList<B>
*/
public function map(Closure $effect): ArrayList
{
throw new RuntimeException("???");
}
}
/**
* @template T
* @template B
*
* @param ArrayList<T> $list
* @return ArrayList<array{T}>
*/
function genericContext(ArrayList $list): ArrayList
{
return $list->map(
/** @param B $_a */
function ($_a) {
return [$_a];
}
);
}',
'error_message' => 'InvalidArgument',
],
'callableArrayParentConstantDeprecated' => [
'code' => '<?php
class Z {
public static function hello(): void {
echo "hello";
}
}
class A extends Z {
public function __construct() {
$this->run(["parent", "hello"]);
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableParentConstantDeprecated' => [
'code' => '<?php
class Z {
public static function hello(): void {
echo "hello";
}
}
class A extends Z {
public function __construct() {
$this->run("parent::hello");
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableSelfConstantDeprecated' => [
'code' => '<?php
class A {
public function __construct() {
$this->run("self::hello");
}
public static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableStaticConstantDeprecated' => [
'code' => '<?php
class A {
public function __construct() {
$this->run("static::hello");
}
public static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'callableArrayStaticConstantDeprecated' => [
'code' => '<?php
class A {
public function __construct() {
$this->run(["static", "hello"]);
}
public static function hello(): void {
echo "hello";
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'DeprecatedConstant',
'ignored_issues' => [],
'php_version' => '8.2',
],
'invalidFirstClassCallableCannotBeInferred' => [
'code' => '<?php
/**
* @template T1
*/
final class App
{
/**
* @param T1 $param1
*/
public function __construct(
private readonly mixed $param1,
) {}
/**
* @template T2
* @param callable(T1): T2 $callback
* @return T2
*/
public function run(callable $callback): mixed
{
return $callback($this->param1);
}
}
/**
* @template P1 of int|float
* @param P1 $param1
* @return array{param1: P1}
*/
function appHandler(mixed $param1): array
{
return ["param1" => $param1];
}
$result = (new App(param1: [42]))->run(appHandler(...));
',
'error_message' => 'InvalidArgument',
'ignored_issues' => [],
'php_version' => '8.1',
],
'variadicClosureAssignability' => [
'code' => '<?php
function add(int $a, int $b, int ...$rest): int
{
return 0;
}
/** @param Closure(int, int, string, int, int): int $f */
function int_int_string_int_int(Closure $f): void {}
/** @param Closure(int, int, int, string, int): int $f */
function int_int_int_string_int(Closure $f): void {}
/** @param Closure(int, int, int, int, string): int $f */
function int_int_int_int_string(Closure $f): void {}
int_int_string_int_int(add(...));
int_int_int_string_int(add(...));
int_int_int_int_string(add(...));',
'error_message' => 'InvalidScalarArgument',
'ignored_issues' => [],
'php_version' => '8.0',
],
'callableWithInvalidNamedArguments' => [
'code' => <<<'PHP'
<?php
/** @param callable(int $a) $c */
function f(callable $c): void {
$c(b: 1);
}
PHP,
'error_message' => 'InvalidNamedArgument',
'ignored_issues' => [],
'php_version' => '8.0',
],
'parentCallableArrayWithoutParent' => [
'code' => '<?php
class A {
public function __construct() {
$this->run(["parent", "hello"]);
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'ParentNotFound',
],
'parentCallableWithoutParent' => [
'code' => '<?php
class A {
public function __construct() {
$this->run("parent::hello");
}
/**
* @param callable $callable
* @return void
*/
public function run($callable) {
call_user_func($callable);
}
}',
'error_message' => 'ParentNotFound',
],
'wrongCallableInUnion' => [
'code' => '<?php
/**
* @param int|callable $arg
*/
function foo($arg): void {}
foo([\DateTime::class, "wrongMethod"]);',
'error_message' => 'InvalidArgument',
],
];
}
}
Function Calls
| None |
Stats
| MD5 | d8db9da5ab1471f5e624891b8f131357 |
| Eval Count | 0 |
| Decode Time | 160 ms |