mirror of
https://github.com/danog/psalm.git
synced 2024-12-02 17:52:45 +01:00
1895 lines
62 KiB
PHP
1895 lines
62 KiB
PHP
<?php
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namespace Psalm\Tests\Template;
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use Psalm\Tests\TestCase;
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use Psalm\Tests\Traits;
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class TemplateTest extends TestCase
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{
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use Traits\InvalidCodeAnalysisTestTrait;
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use Traits\ValidCodeAnalysisTestTrait;
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/**
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* @return array
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*/
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public function providerValidCodeParse()
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{
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return [
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'classTemplate' => [
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'<?php
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class A {}
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class B {}
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class C {}
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class D {}
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/**
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* @template T as object
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*/
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class Foo {
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/** @var T::class */
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public $T;
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/**
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* @param class-string $T
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* @template-typeof T $T
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*/
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public function __construct(string $T) {
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$this->T = $T;
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}
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/**
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* @return T
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*/
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public function bar() {
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$t = $this->T;
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return new $t();
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}
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}
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$at = "A";
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/** @var Foo<A> */
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$afoo = new Foo($at);
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$afoo_bar = $afoo->bar();
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$bfoo = new Foo(B::class);
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$bfoo_bar = $bfoo->bar();
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// this shouldn’t cause a problem as it’s a docbblock type
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if (!($bfoo_bar instanceof B)) {}
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$c = C::class;
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$cfoo = new Foo($c);
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$cfoo_bar = $cfoo->bar();',
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'assertions' => [
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'$afoo' => 'Foo<A>',
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'$afoo_bar' => 'A',
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'$bfoo' => 'Foo<B>',
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'$bfoo_bar' => 'B',
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'$cfoo' => 'Foo<C>',
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'$cfoo_bar' => 'C',
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],
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'error_levels' => [
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'MixedReturnStatement',
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'LessSpecificReturnStatement',
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'RedundantConditionGivenDocblockType',
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'TypeCoercion'
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],
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],
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'classTemplateSelfs' => [
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'<?php
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/**
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* @template T as object
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*/
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class Foo {
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/** @var T::class */
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public $T;
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/**
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* @param class-string $T
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* @template-typeof T $T
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*/
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public function __construct(string $T) {
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$this->T = $T;
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}
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/**
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* @return T
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*/
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public function bar() {
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$t = $this->T;
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return new $t();
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}
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}
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class E {
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/**
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* @return Foo<self>
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*/
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public static function getFoo() {
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return new Foo(__CLASS__);
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}
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/**
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* @return Foo<self>
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*/
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public static function getFoo2() {
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return new Foo(self::class);
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}
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/**
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* @return Foo<static>
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*/
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public static function getFoo3() {
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return new Foo(static::class);
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}
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}
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class G extends E {}
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$efoo = E::getFoo();
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$efoo2 = E::getFoo2();
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$efoo3 = E::getFoo3();
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$gfoo = G::getFoo();
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$gfoo2 = G::getFoo2();
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$gfoo3 = G::getFoo3();',
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'assertions' => [
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'$efoo' => 'Foo<E>',
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'$efoo2' => 'Foo<E>',
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'$efoo3' => 'Foo<E>',
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'$gfoo' => 'Foo<E>',
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'$gfoo2' => 'Foo<E>',
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'$gfoo3' => 'Foo<G>',
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],
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'error_levels' => [
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'LessSpecificReturnStatement',
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'RedundantConditionGivenDocblockType',
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],
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],
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'classTemplateExternalClasses' => [
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'<?php
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/**
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* @template T as object
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*/
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class Foo {
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/** @var T::class */
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public $T;
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/**
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* @param class-string $T
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* @template-typeof T $T
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*/
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public function __construct(string $T) {
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$this->T = $T;
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}
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/**
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* @return T
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*/
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public function bar() {
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$t = $this->T;
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return new $t();
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}
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}
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$efoo = new Foo(\Exception::class);
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$efoo_bar = $efoo->bar();
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$ffoo = new Foo(\LogicException::class);
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$ffoo_bar = $ffoo->bar();',
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'assertions' => [
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'$efoo' => 'Foo<Exception>',
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'$efoo_bar' => 'Exception',
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'$ffoo' => 'Foo<LogicException>',
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'$ffoo_bar' => 'LogicException',
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],
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'error_levels' => ['LessSpecificReturnStatement'],
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],
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'classTemplateContainer' => [
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'<?php
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class A {}
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/**
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* @template T
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*/
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class Foo {
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/** @var T */
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public $obj;
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/**
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* @param T $obj
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*/
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public function __construct($obj) {
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$this->obj = $obj;
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}
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/**
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* @return T
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*/
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public function bar() {
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return $this->obj;
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}
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/**
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* @return T
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*/
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public function bat() {
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return $this->bar();
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}
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public function __toString(): string {
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return "hello " . $this->obj;
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}
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}
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$afoo = new Foo(new A());
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$afoo_bar = $afoo->bar();',
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'assertions' => [
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'$afoo' => 'Foo<A>',
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'$afoo_bar' => 'A',
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],
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'error_levels' => ['MixedOperand'],
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],
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'validTemplatedType' => [
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'<?php
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namespace FooFoo;
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/**
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* @template T
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* @param T $x
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* @return T
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*/
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function foo($x) {
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return $x;
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}
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function bar(string $a): void { }
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bar(foo("string"));',
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],
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'validPsalmTemplatedType' => [
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'<?php
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namespace FooFoo;
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/**
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* @psalm-template T
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* @psalm-param T $x
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* @psalm-return T
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*/
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function foo($x) {
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return $x;
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}
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function bar(string $a): void { }
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bar(foo("string"));',
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],
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'validTemplatedStaticMethodType' => [
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'<?php
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namespace FooFoo;
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class A {
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/**
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* @template T
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* @param T $x
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* @return T
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*/
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public static function foo($x) {
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return $x;
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}
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}
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function bar(string $a): void { }
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bar(A::foo("string"));',
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],
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'validTemplatedInstanceMethodType' => [
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'<?php
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namespace FooFoo;
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class A {
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/**
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* @template T
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* @param T $x
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* @return T
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*/
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public function foo($x) {
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return $x;
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}
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}
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function bar(string $a): void { }
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bar((new A())->foo("string"));',
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],
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'genericArrayKeys' => [
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'<?php
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/**
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* @template T as array-key
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*
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* @param array<T, mixed> $arr
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* @return array<int, T>
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*/
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function my_array_keys($arr) {
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return array_keys($arr);
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}
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$a = my_array_keys(["hello" => 5, "goodbye" => new \Exception()]);',
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'assertions' => [
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'$a' => 'array<int, string>',
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],
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],
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'genericArrayFlip' => [
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'<?php
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/**
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* @template TKey as array-key
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* @template TValue as array-key
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*
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* @param array<TKey, TValue> $arr
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* @return array<TValue, TKey>
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*/
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function my_array_flip($arr) {
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return array_flip($arr);
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}
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$b = my_array_flip(["hello" => 5, "goodbye" => 6]);',
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'assertions' => [
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'$b' => 'array<int, string>',
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],
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],
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'byRefKeyValueArray' => [
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'<?php
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/**
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* @template TValue
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* @template TKey as array-key
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*
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* @param array<TKey, TValue> $arr
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*/
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function byRef(array &$arr) : void {}
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$b = ["a" => 5, "c" => 6];
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byRef($b);',
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'assertions' => [
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'$b' => 'array<string, int>',
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],
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],
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'byRefMixedKeyArray' => [
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'<?php
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/**
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* @template TValue
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*
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* @param array<mixed, TValue> $arr
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*/
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function byRef(array &$arr) : void {}
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$b = ["a" => 5, "c" => 6];
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byRef($b);',
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'assertions' => [
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'$b' => 'array<mixed, int>',
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],
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],
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'mixedArrayPop' => [
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'<?php
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/**
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* @template TValue
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*
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* @param array<array-key, TValue> $arr
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* @return TValue|null
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*/
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function my_array_pop(array &$arr) {
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return array_pop($arr);
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}
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|
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/** @var mixed */
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$b = ["a" => 5, "c" => 6];
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$a = my_array_pop($b);',
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'assertions' => [
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'$a' => 'mixed',
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'$b' => 'array<array-key, mixed>',
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],
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'error_levels' => ['MixedAssignment', 'MixedArgument'],
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||
],
|
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'genericArrayPop' => [
|
||
'<?php
|
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/**
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||
* @template TValue
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* @template TKey as array-key
|
||
*
|
||
* @param array<TKey, TValue> $arr
|
||
* @return TValue|null
|
||
*/
|
||
function my_array_pop(array &$arr) {
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||
return array_pop($arr);
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||
}
|
||
|
||
$b = ["a" => 5, "c" => 6];
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$a = my_array_pop($b);',
|
||
'assertions' => [
|
||
'$a' => 'null|int',
|
||
'$b' => 'array<string, int>',
|
||
],
|
||
],
|
||
'intersectionTemplatedTypes' => [
|
||
'<?php
|
||
namespace NS;
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||
use Countable;
|
||
|
||
/** @template T */
|
||
class Collection
|
||
{
|
||
/** @psalm-var iterable<T> */
|
||
private $data;
|
||
|
||
/** @psalm-param iterable<T> $data */
|
||
public function __construct(iterable $data) {
|
||
$this->data = $data;
|
||
}
|
||
}
|
||
|
||
class Item {}
|
||
/** @psalm-param Collection<Item> $c */
|
||
function takesCollectionOfItems(Collection $c): void {}
|
||
|
||
/** @psalm-var iterable<Item> $data2 */
|
||
$data2 = [];
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||
takesCollectionOfItems(new Collection($data2));
|
||
|
||
/** @psalm-var iterable<Item>&Countable $data */
|
||
$data = [];
|
||
takesCollectionOfItems(new Collection($data));',
|
||
],
|
||
'templateCallableReturnType' => [
|
||
'<?php
|
||
namespace NS;
|
||
|
||
/**
|
||
* @template T
|
||
* @psalm-param callable():T $action
|
||
* @psalm-return T
|
||
*/
|
||
function retry(int $maxRetries, callable $action) {
|
||
return $action();
|
||
}
|
||
|
||
function takesInt(int $p): void{};
|
||
|
||
takesInt(retry(1, function(): int { return 1; }));',
|
||
],
|
||
'templateClosureReturnType' => [
|
||
'<?php
|
||
namespace NS;
|
||
|
||
/**
|
||
* @template T
|
||
* @psalm-param \Closure():T $action
|
||
* @psalm-return T
|
||
*/
|
||
function retry(int $maxRetries, callable $action) {
|
||
return $action();
|
||
}
|
||
|
||
function takesInt(int $p): void{};
|
||
|
||
takesInt(retry(1, function(): int { return 1; }));',
|
||
],
|
||
'repeatedCall' => [
|
||
'<?php
|
||
namespace NS;
|
||
|
||
use Closure;
|
||
|
||
/**
|
||
* @template TKey as array-key
|
||
* @template TValue
|
||
*/
|
||
class ArrayCollection {
|
||
/** @var array<TKey,TValue> */
|
||
private $data;
|
||
|
||
/** @param array<TKey,TValue> $data */
|
||
public function __construct(array $data) {
|
||
$this->data = $data;
|
||
}
|
||
|
||
/**
|
||
* @template T
|
||
* @param Closure(TValue):T $func
|
||
* @return ArrayCollection<TKey,T>
|
||
*/
|
||
public function map(Closure $func) {
|
||
return new static(array_map($func, $this->data));
|
||
}
|
||
}
|
||
|
||
class Item {}
|
||
/**
|
||
* @param ArrayCollection<array-key,Item> $i
|
||
*/
|
||
function takesCollectionOfItems(ArrayCollection $i): void {}
|
||
|
||
$c = new ArrayCollection([ new Item ]);
|
||
takesCollectionOfItems($c);
|
||
takesCollectionOfItems($c->map(function(Item $i): Item { return $i;}));
|
||
takesCollectionOfItems($c->map(function(Item $i): Item { return $i;}));'
|
||
],
|
||
'replaceChildTypeWithGenerator' => [
|
||
'<?php
|
||
/**
|
||
* @template TKey as array-key
|
||
* @template TValue
|
||
* @param Traversable<TKey, TValue> $t
|
||
* @return array<TKey, TValue>
|
||
*/
|
||
function f(Traversable $t): array {
|
||
$ret = [];
|
||
foreach ($t as $k => $v) $ret[$k] = $v;
|
||
return $ret;
|
||
}
|
||
|
||
/** @return Generator<int, stdClass> */
|
||
function g():Generator { yield new stdClass; }
|
||
|
||
takesArrayOfStdClass(f(g()));
|
||
|
||
/** @param array<stdClass> $p */
|
||
function takesArrayOfStdClass(array $p): void {}',
|
||
],
|
||
'noRepeatedTypeException' => [
|
||
'<?php
|
||
/** @template T */
|
||
class Foo
|
||
{
|
||
/**
|
||
* @psalm-var class-string
|
||
*/
|
||
private $type;
|
||
|
||
/** @var array<T> */
|
||
private $items;
|
||
|
||
/**
|
||
* @param class-string $type
|
||
* @template-typeof T $type
|
||
*/
|
||
public function __construct(string $type)
|
||
{
|
||
if (!in_array($type, [A::class, B::class], true)) {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
$this->type = $type;
|
||
$this->items = [];
|
||
}
|
||
|
||
/** @param T $item */
|
||
public function add($item): void
|
||
{
|
||
$this->items[] = $item;
|
||
}
|
||
}
|
||
|
||
class FooFacade
|
||
{
|
||
/**
|
||
* @template T
|
||
* @param T $item
|
||
*/
|
||
public function add($item): void
|
||
{
|
||
$foo = $this->ensureFoo([$item]);
|
||
$foo->add($item);
|
||
}
|
||
|
||
/**
|
||
* @template T
|
||
* @param array<mixed,T> $items
|
||
* @return Foo<T>
|
||
*/
|
||
private function ensureFoo(array $items): Foo
|
||
{
|
||
$type = $items[0] instanceof A ? A::class : B::class;
|
||
return new Foo($type);
|
||
}
|
||
}
|
||
|
||
class A {}
|
||
class B {}'
|
||
],
|
||
'collectionOfClosure' => [
|
||
'<?php
|
||
/**
|
||
* @template TKey
|
||
* @template TValue
|
||
*/
|
||
class Collection {
|
||
/**
|
||
* @param Closure(TValue):bool $p
|
||
* @return Collection<TKey,TValue>
|
||
* @psalm-suppress MixedTypeCoercion
|
||
*/
|
||
public function filter(Closure $p) {
|
||
return $this;
|
||
}
|
||
}
|
||
class I {}
|
||
|
||
/** @var Collection<mixed,Collection<mixed,I>> $c */
|
||
$c = new Collection;
|
||
|
||
$c->filter(
|
||
/** @param Collection<mixed,I> $elt */
|
||
function(Collection $elt): bool { return (bool) rand(0,1); }
|
||
);
|
||
|
||
$c->filter(
|
||
/** @param Collection<mixed,I> $elt */
|
||
function(Collection $elt): bool { return true; }
|
||
);',
|
||
],
|
||
'splatTemplateParam' => [
|
||
'<?php
|
||
/**
|
||
* @template TKey as array-key
|
||
* @template TValue
|
||
*
|
||
* @param array<TKey, TValue> $arr
|
||
* @param array $arr2
|
||
* @return array<TKey, TValue>
|
||
*/
|
||
function splat_proof(array $arr, array $arr2) {
|
||
return $arr;
|
||
}
|
||
|
||
$foo = [
|
||
[1, 2, 3],
|
||
[1, 2],
|
||
];
|
||
|
||
$a = splat_proof(... $foo);',
|
||
'assertions' => [
|
||
'$a' => 'array<int, int>',
|
||
],
|
||
],
|
||
'passArrayByRef' => [
|
||
'<?php
|
||
function acceptsStdClass(stdClass $_p): void {}
|
||
|
||
$q = [new stdClass];
|
||
acceptsStdClass(fNoRef($q));
|
||
acceptsStdClass(fRef($q));
|
||
acceptsStdClass(fNoRef($q));
|
||
|
||
/**
|
||
* @template TKey as array-key
|
||
* @template TValue
|
||
*
|
||
* @param array<TKey, TValue> $_arr
|
||
* @return null|TValue
|
||
* @psalm-ignore-nullable-return
|
||
*/
|
||
function fRef(array &$_arr) {
|
||
return array_shift($_arr);
|
||
}
|
||
|
||
/**
|
||
* @template TKey as array-key
|
||
* @template TValue
|
||
*
|
||
* @param array<TKey, TValue> $_arr
|
||
* @return null|TValue
|
||
* @psalm-ignore-nullable-return
|
||
*/
|
||
function fNoRef(array $_arr) {
|
||
return array_shift($_arr);
|
||
}',
|
||
],
|
||
'templatedInterfaceIteration' => [
|
||
'<?php
|
||
namespace NS;
|
||
|
||
/**
|
||
* @template TKey
|
||
* @template TValue
|
||
*/
|
||
interface ICollection extends \IteratorAggregate {
|
||
/** @return \Traversable<TKey,TValue> */
|
||
public function getIterator();
|
||
}
|
||
|
||
class Collection implements ICollection {
|
||
/** @var array */
|
||
private $data;
|
||
public function __construct(array $data) {
|
||
$this->data = $data;
|
||
}
|
||
/** @psalm-suppress LessSpecificImplementedReturnType */
|
||
public function getIterator(): \Traversable {
|
||
return new \ArrayIterator($this->data);
|
||
}
|
||
}
|
||
|
||
/** @var ICollection<string, int> */
|
||
$c = new Collection(["a" => 1]);
|
||
|
||
foreach ($c as $k => $v) { atan($v); strlen($k); }'
|
||
],
|
||
'templatedInterfaceGetIteratorIteration' => [
|
||
'<?php
|
||
namespace NS;
|
||
|
||
/**
|
||
* @template TKey
|
||
* @template TValue
|
||
*/
|
||
interface ICollection extends \IteratorAggregate {
|
||
/** @return \Traversable<TKey,TValue> */
|
||
public function getIterator();
|
||
}
|
||
|
||
class Collection implements ICollection {
|
||
/** @var array */
|
||
private $data;
|
||
public function __construct(array $data) {
|
||
$this->data = $data;
|
||
}
|
||
/** @psalm-suppress LessSpecificImplementedReturnType */
|
||
public function getIterator(): \Traversable {
|
||
return new \ArrayIterator($this->data);
|
||
}
|
||
}
|
||
|
||
/** @var ICollection<string, int> */
|
||
$c = new Collection(["a" => 1]);
|
||
|
||
foreach ($c->getIterator() as $k => $v) { atan($v); strlen($k); }'
|
||
],
|
||
'implictIteratorTemplating' => [
|
||
'<?php
|
||
/**
|
||
* @template-implements IteratorAggregate<int, int>
|
||
*/
|
||
class SomeIterator implements IteratorAggregate
|
||
{
|
||
function getIterator()
|
||
{
|
||
yield 1;
|
||
}
|
||
}
|
||
|
||
/** @param \IteratorAggregate<mixed, int> $i */
|
||
function takesIteratorOfInts(\IteratorAggregate $i) : void {
|
||
foreach ($i as $j) {
|
||
echo $j;
|
||
}
|
||
}
|
||
|
||
takesIteratorOfInts(new SomeIterator());'
|
||
],
|
||
'allowTemplatedIntersectionToExtend' => [
|
||
'<?php
|
||
interface Foo {}
|
||
|
||
interface AlmostFoo {
|
||
/**
|
||
* @return Foo
|
||
*/
|
||
public function makeFoo();
|
||
}
|
||
|
||
/**
|
||
* @template T
|
||
*/
|
||
final class AlmostFooMap implements AlmostFoo {
|
||
/** @var T&Foo */
|
||
private $bar;
|
||
|
||
/**
|
||
* @param T&Foo $closure
|
||
*/
|
||
public function __construct(Foo $bar)
|
||
{
|
||
$this->bar = $bar;
|
||
}
|
||
|
||
/**
|
||
* @return T&Foo
|
||
*/
|
||
public function makeFoo()
|
||
{
|
||
return $this->bar;
|
||
}
|
||
}'
|
||
],
|
||
'restrictTemplateInputWithTClassGoodInput' => [
|
||
'<?php
|
||
namespace Bar;
|
||
|
||
/** @template T */
|
||
class Foo
|
||
{
|
||
/**
|
||
* @psalm-var T::class
|
||
*/
|
||
private $type;
|
||
|
||
/** @var array<T> */
|
||
private $items;
|
||
|
||
/**
|
||
* @param T::class $type
|
||
*/
|
||
public function __construct(string $type)
|
||
{
|
||
if (!in_array($type, [A::class, B::class], true)) {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
$this->type = $type;
|
||
$this->items = [];
|
||
}
|
||
|
||
/** @param T $item */
|
||
public function add($item): void
|
||
{
|
||
$this->items[] = $item;
|
||
}
|
||
}
|
||
|
||
class A {}
|
||
class B {}
|
||
|
||
$foo = new Foo(A::class);
|
||
$foo->add(new A);',
|
||
],
|
||
'classTemplateAsCorrect' => [
|
||
'<?php
|
||
class Foo {}
|
||
class FooChild extends Foo {}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
function bar($x) {
|
||
return $x;
|
||
}
|
||
|
||
bar(new Foo());
|
||
bar(new FooChild());',
|
||
],
|
||
'classTemplateOfCorrect' => [
|
||
'<?php
|
||
class Foo {}
|
||
class FooChild extends Foo {}
|
||
|
||
/**
|
||
* @template T of Foo
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
function bar($x) {
|
||
return $x;
|
||
}
|
||
|
||
bar(new Foo());
|
||
bar(new FooChild());',
|
||
],
|
||
'classTemplateAsInterface' => [
|
||
'<?php
|
||
interface Foo {}
|
||
interface FooChild extends Foo {}
|
||
class FooImplementer implements Foo {}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
function bar($x) {
|
||
return $x;
|
||
}
|
||
|
||
function takesFoo(Foo $f) : void {
|
||
bar($f);
|
||
}
|
||
|
||
function takesFooChild(FooChild $f) : void {
|
||
bar($f);
|
||
}
|
||
|
||
function takesFooImplementer(FooImplementer $f) : void {
|
||
bar($f);
|
||
}',
|
||
],
|
||
'classTemplateFunctionImplementsInterface' => [
|
||
'<?php
|
||
namespace A\B;
|
||
|
||
interface Foo {}
|
||
|
||
interface IFooGetter {
|
||
/**
|
||
* @return Foo
|
||
*/
|
||
public function getFoo();
|
||
}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
*/
|
||
class FooGetter implements IFooGetter {
|
||
/** @var T */
|
||
private $t;
|
||
|
||
/**
|
||
* @param T $t
|
||
*/
|
||
public function __construct(Foo $t)
|
||
{
|
||
$this->t = $t;
|
||
}
|
||
|
||
/**
|
||
* @return T
|
||
*/
|
||
public function getFoo()
|
||
{
|
||
return $this->t;
|
||
}
|
||
}
|
||
|
||
function passFoo(Foo $f) : Foo {
|
||
return (new FooGetter($f))->getFoo();
|
||
}',
|
||
],
|
||
'templateFunctionVar' => [
|
||
'<?php
|
||
namespace A\B;
|
||
|
||
class C {
|
||
public function bar() : void {}
|
||
}
|
||
|
||
interface D {}
|
||
|
||
/**
|
||
* @template T as C
|
||
* @return T
|
||
*/
|
||
function foo($some_t) : C {
|
||
/** @var T */
|
||
$a = $some_t;
|
||
$a->bar();
|
||
|
||
/** @var T&D */
|
||
$b = $some_t;
|
||
$b->bar();
|
||
|
||
/** @var D&T */
|
||
$b = $some_t;
|
||
$b->bar();
|
||
|
||
return $a;
|
||
}',
|
||
'assertions' => [],
|
||
'error_levels' => ['MixedAssignment', 'MissingParamType'],
|
||
],
|
||
'returnClassString' => [
|
||
'<?php
|
||
/**
|
||
* @template T
|
||
* @param T::class $s
|
||
* @return T::class
|
||
*/
|
||
function foo(string $s) : string {
|
||
return $s;
|
||
}
|
||
|
||
/**
|
||
* @param A::class $s
|
||
*/
|
||
function bar(string $s) : void {
|
||
}
|
||
|
||
class A {}
|
||
|
||
bar(foo(A::class));'
|
||
],
|
||
'callStaticMethodOnTemplatedClassName' => [
|
||
'<?php
|
||
/**
|
||
* @template T
|
||
* @param class-string $class
|
||
* @template-typeof T $class
|
||
*/
|
||
function foo(string $class, array $args) : void {
|
||
$class::bar($args);
|
||
}',
|
||
'assertions' => [],
|
||
'error_levels' => ['MixedMethodCall'],
|
||
],
|
||
'returnTemplatedClassClassName' => [
|
||
'<?php
|
||
class I {
|
||
/**
|
||
* @template T as Foo
|
||
* @param class-string $class
|
||
* @template-typeof T $class
|
||
* @return T|null
|
||
*/
|
||
public function loader(string $class) {
|
||
return $class::load();
|
||
}
|
||
}
|
||
|
||
class Foo {
|
||
/** @return static */
|
||
public static function load() {
|
||
return new static();
|
||
}
|
||
}
|
||
|
||
class FooChild extends Foo{}
|
||
|
||
$a = (new I)->loader(FooChild::class);',
|
||
'assertions' => [
|
||
'$a' => 'null|FooChild',
|
||
],
|
||
],
|
||
'upcastIterableToTraversable' => [
|
||
'<?php
|
||
/**
|
||
* @template T as iterable
|
||
* @param T::class $class
|
||
*/
|
||
function foo(string $class) : void {
|
||
$a = new $class();
|
||
|
||
foreach ($a as $b) {}
|
||
}',
|
||
'assertions' => [],
|
||
'error_levels' => ['MixedAssignment'],
|
||
],
|
||
'upcastGenericIterableToGenericTraversable' => [
|
||
'<?php
|
||
/**
|
||
* @template T as iterable<int>
|
||
* @param T::class $class
|
||
*/
|
||
function foo(string $class) : void {
|
||
$a = new $class();
|
||
|
||
foreach ($a as $b) {}
|
||
}',
|
||
'assertions' => [],
|
||
'error_levels' => [],
|
||
],
|
||
'bindFirstTemplatedClosureParameter' => [
|
||
'<?php
|
||
/**
|
||
* @template T
|
||
*
|
||
* @param Closure(T):void $t1
|
||
* @param T $t2
|
||
*/
|
||
function apply(Closure $t1, $t2) : void
|
||
{
|
||
$t1($t2);
|
||
}
|
||
|
||
apply(function(int $_i) : void {}, 5);
|
||
apply(function(string $_i) : void {}, "hello");
|
||
apply(function(stdClass $_i) : void {}, new stdClass);
|
||
|
||
class A {}
|
||
class AChild extends A {}
|
||
|
||
apply(function(A $_i) : void {}, new AChild());',
|
||
],
|
||
'getPropertyOnClass' => [
|
||
'<?php
|
||
class Foo {
|
||
/** @var int */
|
||
public $id = 0;
|
||
}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
*/
|
||
class Collection {
|
||
/**
|
||
* @var class-string<T>
|
||
*/
|
||
private $type;
|
||
|
||
/**
|
||
* @param class-string<T> $type
|
||
*/
|
||
public function __construct(string $type) {
|
||
$this->type = $type;
|
||
}
|
||
|
||
/**
|
||
* @return class-string<T>
|
||
*/
|
||
public function getType()
|
||
{
|
||
return $this->type;
|
||
}
|
||
|
||
/**
|
||
* @param T $object
|
||
*/
|
||
public function bar(Foo $object) : void
|
||
{
|
||
if ($this->getType() !== get_class($object)) {
|
||
return;
|
||
}
|
||
|
||
echo $object->id;
|
||
}
|
||
}
|
||
|
||
class FooChild extends Foo {}
|
||
|
||
/** @param Collection<Foo> $c */
|
||
function handleCollectionOfFoo(Collection $c) : void {
|
||
if ($c->getType() === FooChild::class) {}
|
||
}',
|
||
],
|
||
'getEquateClass' => [
|
||
'<?php
|
||
class Foo {
|
||
/** @var int */
|
||
public $id = 0;
|
||
}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
*/
|
||
class Container {
|
||
/**
|
||
* @var T
|
||
*/
|
||
private $obj;
|
||
|
||
/**
|
||
* @param T $obj
|
||
*/
|
||
public function __construct(Foo $obj) {
|
||
$this->obj = $obj;
|
||
}
|
||
|
||
/**
|
||
* @param T $object
|
||
*/
|
||
public function bar(Foo $object) : void
|
||
{
|
||
if ($this->obj === $object) {}
|
||
}
|
||
}',
|
||
],
|
||
'allowComparisonGetTypeResult' => [
|
||
'<?php
|
||
class Foo {}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
*/
|
||
class Collection {
|
||
/**
|
||
* @var class-string<T>
|
||
*/
|
||
private $type;
|
||
|
||
/**
|
||
* @param class-string<T> $type
|
||
*/
|
||
public function __construct(string $type) {
|
||
$this->type = $type;
|
||
}
|
||
|
||
/**
|
||
* @return class-string<T>|null
|
||
*/
|
||
public function getType()
|
||
{
|
||
return $this->type;
|
||
}
|
||
}
|
||
|
||
function foo(Collection $c) : void {
|
||
$val = $c->getType();
|
||
if (!$val) {}
|
||
if ($val) {}
|
||
}',
|
||
],
|
||
'mixedTemplatedParamOutWithNoExtendedTemplate' => [
|
||
'<?php
|
||
/**
|
||
* @template TValue
|
||
*/
|
||
class ValueContainer
|
||
{
|
||
/**
|
||
* @var TValue
|
||
*/
|
||
private $v;
|
||
/**
|
||
* @param TValue $v
|
||
*/
|
||
public function __construct($v)
|
||
{
|
||
$this->v = $v;
|
||
}
|
||
/**
|
||
* @return TValue
|
||
*/
|
||
public function getValue()
|
||
{
|
||
return $this->v;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* @template TKey
|
||
* @template TValue
|
||
*/
|
||
class KeyValueContainer extends ValueContainer
|
||
{
|
||
/**
|
||
* @var TKey
|
||
*/
|
||
private $k;
|
||
/**
|
||
* @param TKey $k
|
||
* @param TValue $v
|
||
*/
|
||
public function __construct($k, $v)
|
||
{
|
||
$this->k = $k;
|
||
parent::__construct($v);
|
||
}
|
||
/**
|
||
* @return TKey
|
||
*/
|
||
public function getKey()
|
||
{
|
||
return $this->k;
|
||
}
|
||
}
|
||
$a = new KeyValueContainer("hello", 15);
|
||
$b = $a->getValue();',
|
||
[
|
||
'$a' => 'KeyValueContainer<string, int>',
|
||
'$b' => 'mixed'
|
||
],
|
||
'error_levels' => ['MixedAssignment'],
|
||
],
|
||
'mixedTemplatedParamOutDifferentParamName' => [
|
||
'<?php
|
||
/**
|
||
* @template TValue
|
||
*/
|
||
class ValueContainer
|
||
{
|
||
/**
|
||
* @var TValue
|
||
*/
|
||
private $v;
|
||
/**
|
||
* @param TValue $v
|
||
*/
|
||
public function __construct($v)
|
||
{
|
||
$this->v = $v;
|
||
}
|
||
/**
|
||
* @return TValue
|
||
*/
|
||
public function getValue()
|
||
{
|
||
return $this->v;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* @template TKey
|
||
* @template Tv
|
||
*/
|
||
class KeyValueContainer extends ValueContainer
|
||
{
|
||
/**
|
||
* @var TKey
|
||
*/
|
||
private $k;
|
||
/**
|
||
* @param TKey $k
|
||
* @param Tv $v
|
||
*/
|
||
public function __construct($k, $v)
|
||
{
|
||
$this->k = $k;
|
||
parent::__construct($v);
|
||
}
|
||
/**
|
||
* @return TKey
|
||
*/
|
||
public function getKey()
|
||
{
|
||
return $this->k;
|
||
}
|
||
}
|
||
$a = new KeyValueContainer("hello", 15);
|
||
$b = $a->getValue();',
|
||
[
|
||
'$a' => 'KeyValueContainer<string, int>',
|
||
'$b' => 'mixed'
|
||
],
|
||
'error_levels' => ['MixedAssignment'],
|
||
],
|
||
|
||
'doesntExtendTemplateAndDoesNotOverride' => [
|
||
'<?php
|
||
/**
|
||
* @template T as array-key
|
||
*/
|
||
abstract class User
|
||
{
|
||
/**
|
||
* @var T
|
||
*/
|
||
private $id;
|
||
/**
|
||
* @param T $id
|
||
*/
|
||
public function __construct($id)
|
||
{
|
||
$this->id = $id;
|
||
}
|
||
/**
|
||
* @return T
|
||
*/
|
||
public function getID()
|
||
{
|
||
return $this->id;
|
||
}
|
||
}
|
||
|
||
class AppUser extends User {}
|
||
|
||
$au = new AppUser(-1);
|
||
$id = $au->getId();',
|
||
[
|
||
'$au' => 'AppUser',
|
||
'$id' => 'array-key',
|
||
]
|
||
],
|
||
|
||
'callableReturnsItself' => [
|
||
'<?php
|
||
$a =
|
||
/**
|
||
* @param callable():string $s
|
||
* @return string
|
||
*/
|
||
function(callable $s) {
|
||
return $s();
|
||
};
|
||
|
||
/**
|
||
* @template T1
|
||
* @param callable(callable():T1):T1 $s
|
||
* @return void
|
||
*/
|
||
function takesReturnTCallable(callable $s) {}
|
||
|
||
takesReturnTCallable($a);'
|
||
],
|
||
'nonBindingParamReturn' => [
|
||
'<?php
|
||
/**
|
||
* @template T
|
||
*
|
||
* @param Closure():T $t1
|
||
* @param T $t2
|
||
*/
|
||
function foo(Closure $t1, $t2) : void {}
|
||
foo(
|
||
function () : int {
|
||
return 5;
|
||
},
|
||
"hello"
|
||
);'
|
||
],
|
||
'templatedInterfaceMethodInheritReturnType' => [
|
||
'<?php
|
||
class Foo {}
|
||
|
||
class SomeIterator implements IteratorAggregate
|
||
{
|
||
public function getIterator() {
|
||
yield new Foo;
|
||
}
|
||
}
|
||
|
||
$i = (new SomeIterator())->getIterator();',
|
||
[
|
||
'$i' => 'Traversable<mixed, mixed>',
|
||
]
|
||
],
|
||
'upcastArrayToIterable' => [
|
||
'<?php
|
||
/**
|
||
* @template K
|
||
* @template V
|
||
* @param iterable<K,V> $collection
|
||
* @return V
|
||
* @psalm-suppress InvalidReturnType
|
||
*/
|
||
function first($collection) {}
|
||
|
||
$one = first([1,2,3]);',
|
||
[
|
||
'$one' => 'int',
|
||
]
|
||
],
|
||
];
|
||
}
|
||
|
||
/**
|
||
* @return array
|
||
*/
|
||
public function providerInvalidCodeParse()
|
||
{
|
||
return [
|
||
'invalidTemplatedType' => [
|
||
'<?php
|
||
namespace FooFoo;
|
||
|
||
/**
|
||
* @template T
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
function foo($x) {
|
||
return $x;
|
||
}
|
||
|
||
function bar(string $a): void { }
|
||
|
||
bar(foo(4));',
|
||
'error_message' => 'InvalidScalarArgument',
|
||
],
|
||
'invalidTemplatedStaticMethodType' => [
|
||
'<?php
|
||
namespace FooFoo;
|
||
|
||
class A {
|
||
/**
|
||
* @template T
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
public static function foo($x) {
|
||
return $x;
|
||
}
|
||
}
|
||
|
||
function bar(string $a): void { }
|
||
|
||
bar(A::foo(4));',
|
||
'error_message' => 'InvalidScalarArgument',
|
||
],
|
||
'invalidTemplatedInstanceMethodType' => [
|
||
'<?php
|
||
namespace FooFoo;
|
||
|
||
class A {
|
||
/**
|
||
* @template T
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
public function foo($x) {
|
||
return $x;
|
||
}
|
||
}
|
||
|
||
function bar(string $a): void { }
|
||
|
||
bar((new A())->foo(4));',
|
||
'error_message' => 'InvalidScalarArgument',
|
||
],
|
||
'replaceChildTypeNoHint' => [
|
||
'<?php
|
||
/**
|
||
* @template TKey as array-key
|
||
* @template TValue
|
||
* @param Traversable<TKey, TValue> $t
|
||
* @return array<TKey, TValue>
|
||
*/
|
||
function f(Traversable $t): array {
|
||
$ret = [];
|
||
foreach ($t as $k => $v) $ret[$k] = $v;
|
||
return $ret;
|
||
}
|
||
|
||
function g():Generator { yield new stdClass; }
|
||
|
||
takesArrayOfStdClass(f(g()));
|
||
|
||
/** @param array<stdClass> $p */
|
||
function takesArrayOfStdClass(array $p): void {}',
|
||
'error_message' => 'MixedTypeCoercion',
|
||
],
|
||
'restrictTemplateInputWithClassString' => [
|
||
'<?php
|
||
/** @template T as object */
|
||
class Foo
|
||
{
|
||
/**
|
||
* @psalm-var class-string
|
||
*/
|
||
private $type;
|
||
|
||
/** @var array<T> */
|
||
private $items;
|
||
|
||
/**
|
||
* @param T::class $type
|
||
*/
|
||
public function __construct(string $type)
|
||
{
|
||
if (!in_array($type, [A::class, B::class], true)) {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
$this->type = $type;
|
||
$this->items = [];
|
||
}
|
||
|
||
/** @param T $item */
|
||
public function add($item): void
|
||
{
|
||
$this->items[] = $item;
|
||
}
|
||
}
|
||
|
||
class A {}
|
||
class B {}
|
||
|
||
$foo = new Foo(A::class);
|
||
$foo->add(new B);',
|
||
'error_message' => 'InvalidArgument',
|
||
],
|
||
'restrictTemplateInputWithTClassBadInput' => [
|
||
'<?php
|
||
/** @template T */
|
||
class Foo
|
||
{
|
||
/**
|
||
* @psalm-var class-string
|
||
*/
|
||
private $type;
|
||
|
||
/** @var array<T> */
|
||
private $items;
|
||
|
||
/**
|
||
* @param T::class $type
|
||
*/
|
||
public function __construct(string $type)
|
||
{
|
||
if (!in_array($type, [A::class, B::class], true)) {
|
||
throw new \InvalidArgumentException;
|
||
}
|
||
$this->type = $type;
|
||
$this->items = [];
|
||
}
|
||
|
||
/** @param T $item */
|
||
public function add($item): void
|
||
{
|
||
$this->items[] = $item;
|
||
}
|
||
}
|
||
|
||
class A {}
|
||
class B {}
|
||
|
||
$foo = new Foo(A::class);
|
||
$foo->add(new B);',
|
||
'error_message' => 'InvalidArgument',
|
||
],
|
||
'templatedClosureProperty' => [
|
||
'<?php
|
||
final class State
|
||
{}
|
||
|
||
interface Foo
|
||
{}
|
||
|
||
function type(string ...$_p): void {}
|
||
|
||
/**
|
||
* @template T
|
||
*/
|
||
final class AlmostFooMap
|
||
{
|
||
/**
|
||
* @param callable(State):(T&Foo) $closure
|
||
*/
|
||
public function __construct(callable $closure)
|
||
{
|
||
type($closure);
|
||
}
|
||
}',
|
||
'error_message' => 'InvalidArgument - src/somefile.php:20 - Argument 1 of type expects string, callable(State):(T as mixed)&Foo provided',
|
||
],
|
||
'classTemplateAsIncorrectClass' => [
|
||
'<?php
|
||
class Foo {}
|
||
class NotFoo {}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
function bar($x) {
|
||
return $x;
|
||
}
|
||
|
||
bar(new NotFoo());',
|
||
'error_message' => 'InvalidArgument',
|
||
],
|
||
'classTemplateAsIncorrectInterface' => [
|
||
'<?php
|
||
interface Foo {}
|
||
interface NotFoo {}
|
||
|
||
/**
|
||
* @template T as Foo
|
||
* @param T $x
|
||
* @return T
|
||
*/
|
||
function bar($x) {
|
||
return $x;
|
||
}
|
||
|
||
function takesNotFoo(NotFoo $f) : void {
|
||
bar($f);
|
||
}',
|
||
'error_message' => 'InvalidArgument',
|
||
],
|
||
'templateFunctionMethodCallWithoutMethod' => [
|
||
'<?php
|
||
namespace A\B;
|
||
|
||
class C {}
|
||
|
||
/**
|
||
* @template T as C
|
||
* @param T $some_t
|
||
*/
|
||
function foo($some_t) : void {
|
||
$some_t->bar();
|
||
}',
|
||
'error_message' => 'PossiblyUndefinedMethod',
|
||
],
|
||
'templateFunctionMethodCallWithoutAsType' => [
|
||
'<?php
|
||
namespace A\B;
|
||
|
||
/**
|
||
* @template T
|
||
* @param T $some_t
|
||
*/
|
||
function foo($some_t) : void {
|
||
$some_t->bar();
|
||
}',
|
||
'error_message' => 'MixedMethodCall',
|
||
],
|
||
'forbidLossOfInformationWhenCoercing' => [
|
||
'<?php
|
||
/**
|
||
* @template T as iterable<int>
|
||
* @param T::class $class
|
||
*/
|
||
function foo(string $class) : void {}
|
||
|
||
function bar(Traversable $t) : void {
|
||
foo(get_class($t));
|
||
}',
|
||
'error_message' => 'MixedTypeCoercion',
|
||
],
|
||
'bindFirstTemplatedClosureParameter' => [
|
||
'<?php
|
||
/**
|
||
* @template T
|
||
*
|
||
* @param Closure(T):void $t1
|
||
* @param T $t2
|
||
*/
|
||
function apply(Closure $t1, $t2) : void
|
||
{
|
||
$t1($t2);
|
||
}
|
||
|
||
apply(function(int $_i) : void {}, "hello");',
|
||
'error_message' => 'InvalidScalarArgument',
|
||
],
|
||
'bindFirstTemplatedClosureParameterTypeCoercion' => [
|
||
'<?php
|
||
/**
|
||
* @template T
|
||
*
|
||
* @param Closure(T):void $t1
|
||
* @param T $t2
|
||
*/
|
||
function apply(Closure $t1, $t2) : void
|
||
{
|
||
$t1($t2);
|
||
}
|
||
|
||
class A {}
|
||
class AChild extends A {}
|
||
|
||
apply(function(AChild $_i) : void {}, new A());',
|
||
'error_message' => 'TypeCoercion',
|
||
],
|
||
|
||
'callableDoesNotReturnItself' => [
|
||
'<?php
|
||
$b =
|
||
/**
|
||
* @param callable():int $s
|
||
* @return string
|
||
*/
|
||
function(callable $s) {
|
||
return "#" . $s();
|
||
};
|
||
|
||
/**
|
||
* @template T1
|
||
* @param callable(callable():T1):T1 $s
|
||
* @return void
|
||
*/
|
||
function takesReturnTCallable(callable $s) {}
|
||
|
||
takesReturnTCallable($b);',
|
||
'error_message' => 'InvalidScalarArgument',
|
||
],
|
||
'multipleArgConstraintWithMoreRestrictiveFirstArg' => [
|
||
'<?php
|
||
class A {}
|
||
class AChild extends A {}
|
||
|
||
/**
|
||
* @template T
|
||
* @param callable(T):void $c1
|
||
* @param callable(T):void $c2
|
||
* @param T $a
|
||
*/
|
||
function foo(callable $c1, callable $c2, $a): void {
|
||
$c1($a);
|
||
$c2($a);
|
||
}
|
||
|
||
foo(
|
||
function(AChild $_a) : void {},
|
||
function(A $_a) : void {},
|
||
new A()
|
||
);',
|
||
'error_message' => 'TypeCoercion',
|
||
],
|
||
'multipleArgConstraintWithMoreRestrictiveSecondArg' => [
|
||
'<?php
|
||
class A {}
|
||
class AChild extends A {}
|
||
|
||
/**
|
||
* @template T
|
||
* @param callable(T):void $c1
|
||
* @param callable(T):void $c2
|
||
* @param T $a
|
||
*/
|
||
function foo(callable $c1, callable $c2, $a): void {
|
||
$c1($a);
|
||
$c2($a);
|
||
}
|
||
|
||
foo(
|
||
function(A $_a) : void {},
|
||
function(AChild $_a) : void {},
|
||
new A()
|
||
);',
|
||
'error_message' => 'TypeCoercion',
|
||
],
|
||
'multipleArgConstraintWithLessRestrictiveThirdArg' => [
|
||
'<?php
|
||
class A {}
|
||
class AChild extends A {}
|
||
|
||
/**
|
||
* @template T
|
||
* @param callable(T):void $c1
|
||
* @param callable(T):void $c2
|
||
* @param T $a
|
||
*/
|
||
function foo(callable $c1, callable $c2, $a): void {
|
||
$c1($a);
|
||
$c2($a);
|
||
}
|
||
|
||
foo(
|
||
function(AChild $_a) : void {},
|
||
function(AChild $_a) : void {},
|
||
new A()
|
||
);',
|
||
'error_message' => 'TypeCoercion',
|
||
],
|
||
'possiblyInvalidArgumentWithUnionFirstArg' => [
|
||
'<?php
|
||
|
||
/**
|
||
* @template T
|
||
* @param T $a
|
||
* @param T $b
|
||
* @return T
|
||
*/
|
||
function foo($a, $b) {
|
||
return rand(0, 1) ? $a : $b;
|
||
}
|
||
|
||
echo foo([], "hello");',
|
||
'error_message' => 'PossiblyInvalidArgument',
|
||
],
|
||
'possiblyInvalidArgumentWithUnionSecondArg' => [
|
||
'<?php
|
||
|
||
/**
|
||
* @template T
|
||
* @param T $a
|
||
* @param T $b
|
||
* @return T
|
||
*/
|
||
function foo($a, $b) {
|
||
return rand(0, 1) ? $a : $b;
|
||
}
|
||
|
||
echo foo("hello", []);',
|
||
'error_message' => 'PossiblyInvalidArgument',
|
||
],
|
||
'templateWithNoReturn' => [
|
||
'<?php
|
||
/**
|
||
* @template T
|
||
*/
|
||
class A {
|
||
/** @return T */
|
||
public function foo() {}
|
||
}',
|
||
'error_message' => 'InvalidReturnType',
|
||
],
|
||
'templateInvalidDocblockArgument' => [
|
||
'<?php
|
||
/** @template T as object */
|
||
class Generic {}
|
||
|
||
/**
|
||
* @template T
|
||
* @param T $p
|
||
* @return Generic<T>
|
||
* @psalm-suppress InvalidReturnType
|
||
*/
|
||
function violate($p) {}',
|
||
'error_message' => 'InvalidTemplateParam',
|
||
],
|
||
];
|
||
}
|
||
}
|