mirror of
https://github.com/danog/psalm.git
synced 2024-11-30 04:39:00 +01:00
861 lines
28 KiB
PHP
861 lines
28 KiB
PHP
<?php
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namespace Psalm\Tests;
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class TemplateTest extends TestCase
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{
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use Traits\FileCheckerInvalidCodeParseTestTrait;
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use Traits\FileCheckerValidCodeParseTestTrait;
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/**
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* @return array
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*/
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public function providerFileCheckerValidCodeParse()
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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 string */
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public $T;
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/**
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* @param 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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$cfoo = new Foo("C");
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$cfoo_bar = $cfoo->bar();
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$dt = "D";
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$dfoo = new Foo($dt);',
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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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'$dfoo' => 'Foo<mixed>',
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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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],
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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 string */
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public $T;
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/**
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* @param 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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'MixedReturnStatement',
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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 string */
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public $T;
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/**
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* @param 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");
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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' => ['MixedReturnStatement', '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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'phanTuple' => [
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'<?php
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namespace Phan\Library;
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/**
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* An abstract tuple.
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*/
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abstract class Tuple
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{
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const ARITY = 0;
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/**
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* @return int
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* The arity of this tuple
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*/
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public function arity(): int
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{
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return (int)static::ARITY;
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}
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/**
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* @return array
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* An array of all elements in this tuple.
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*/
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abstract public function toArray(): array;
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}
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/**
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* A tuple of 1 element.
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*
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* @template T0
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* The type of element zero
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*/
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class Tuple1 extends Tuple
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{
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/** @var int */
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const ARITY = 1;
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/** @var T0 */
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public $_0;
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/**
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* @param T0 $_0
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* The 0th element
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*/
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public function __construct($_0) {
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$this->_0 = $_0;
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}
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/**
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* @return int
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* The arity of this tuple
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*/
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public function arity(): int
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{
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return (int)static::ARITY;
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}
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/**
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* @return array
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* An array of all elements in this tuple.
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*/
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public function toArray(): array
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{
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return [
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$this->_0,
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];
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}
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}
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/**
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* A tuple of 2 elements.
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*
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* @template T0
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* The type of element zero
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*
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* @template T1
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* The type of element one
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*
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* @inherits Tuple1<T0>
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*/
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class Tuple2 extends Tuple1
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{
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/** @var int */
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const ARITY = 2;
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/** @var T1 */
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public $_1;
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/**
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* @param T0 $_0
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* The 0th element
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*
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* @param T1 $_1
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* The 1st element
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*/
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public function __construct($_0, $_1) {
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parent::__construct($_0);
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$this->_1 = $_1;
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}
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/**
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* @return array
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* An array of all elements in this tuple.
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*/
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public function toArray(): array
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{
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return [
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$this->_0,
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$this->_1,
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];
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}
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}
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$a = new Tuple2("cool", 5);
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/** @return void */
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function takes_int(int $i) {}
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/** @return void */
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function takes_string(string $s) {}
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takes_string($a->_0);
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takes_int($a->_1);',
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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
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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
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* @template TValue
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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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'genericArrayPop' => [
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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> $arr
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* @return TValue|null
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*/
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function my_array_pop(array &$arr) {
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return array_pop($arr);
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}
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/** @var mixed */
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$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<mixed, mixed>',
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],
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'error_levels' => ['MixedAssignment', 'MixedArgument'],
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],
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'intersectionTemplatedTypes' => [
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'<?php
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namespace NS;
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use Countable;
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/** @template T */
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class Collection
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{
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/** @psalm-var iterable<T> */
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private $data;
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/** @psalm-param iterable<T> $data */
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public function __construct(iterable $data) {
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$this->data = $data;
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}
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}
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class Item {}
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/** @psalm-param Collection<Item> $c */
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function takesCollectionOfItems(Collection $c): void {}
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/** @psalm-var iterable<Item> $data2 */
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$data2 = [];
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takesCollectionOfItems(new Collection($data2));
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/** @psalm-var iterable<Item>&Countable $data */
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$data = [];
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takesCollectionOfItems(new Collection($data));',
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],
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'templateCallableReturnType' => [
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'<?php
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namespace NS;
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/**
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* @template T
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* @psalm-param callable():T $action
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* @psalm-return T
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*/
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function retry(int $maxRetries, callable $action) {
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return $action();
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}
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function takesInt(int $p): void{};
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takesInt(retry(1, function(): int { return 1; }));',
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],
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'templateClosureReturnType' => [
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'<?php
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namespace NS;
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/**
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* @template T
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* @psalm-param \Closure():T $action
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* @psalm-return T
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*/
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function retry(int $maxRetries, callable $action) {
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return $action();
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}
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function takesInt(int $p): void{};
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takesInt(retry(1, function(): int { return 1; }));',
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],
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'repeatedCall' => [
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'<?php
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namespace NS;
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use Closure;
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/**
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* @template TKey
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* @template TValue
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*/
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class ArrayCollection {
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/** @var array<TKey,TValue> */
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private $data;
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/** @param array<TKey,TValue> $data */
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public function __construct(array $data) {
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$this->data = $data;
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}
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/**
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* @template T
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* @param Closure(TValue):T $func
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* @return ArrayCollection<TKey,T>
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*/
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public function map(Closure $func) {
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return new static(array_map($func, $this->data));
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}
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}
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class Item {}
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/**
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* @param ArrayCollection<mixed,Item> $i
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*/
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function takesCollectionOfItems(ArrayCollection $i): void {}
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$c = new ArrayCollection([ new Item ]);
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takesCollectionOfItems($c);
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takesCollectionOfItems($c->map(function(Item $i): Item { return $i;}));
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takesCollectionOfItems($c->map(function(Item $i): Item { return $i;}));'
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],
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'replaceChildType' => [
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'<?php
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/**
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* @template TKey
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* @template TValue
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* @param Traversable<TKey, TValue> $t
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* @return array<TKey, TValue>
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*/
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function f(Traversable $t): array {
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$ret = [];
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foreach ($t as $k => $v) $ret[$k] = $v;
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return $ret;
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}
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/** @return Generator<int, stdClass> */
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function g():Generator { yield new stdClass; }
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takesArrayOfStdClass(f(g()));
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/** @param array<stdClass> $p */
|
||
function takesArrayOfStdClass(array $p): void {}',
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],
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'noRepeatedTypeException' => [
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||
'<?php
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/** @template T */
|
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class Foo
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{
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/**
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* @psalm-var class-string
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||
*/
|
||
private $type;
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||
|
||
/** @var array<T> */
|
||
private $items;
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||
|
||
/**
|
||
* @param class-string $type
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||
* @template-typeof T $type
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||
*/
|
||
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
|
||
{
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$this->items[] = $item;
|
||
}
|
||
}
|
||
|
||
class FooFacade
|
||
{
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||
/**
|
||
* @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): EntitySeries
|
||
{
|
||
$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>
|
||
*/
|
||
public function filter(Closure $p);
|
||
}
|
||
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
|
||
* @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>',
|
||
],
|
||
],
|
||
];
|
||
}
|
||
|
||
/**
|
||
* @return array
|
||
*/
|
||
public function providerFileCheckerInvalidCodeParse()
|
||
{
|
||
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
|
||
* @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',
|
||
],
|
||
'restrictTemplateInput' => [
|
||
'<?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 A {}
|
||
class B {}
|
||
|
||
|
||
$foo = new Foo(A::class);
|
||
$foo->add(new B);',
|
||
'error_message' => 'InvalidArgument',
|
||
],
|
||
];
|
||
}
|
||
}
|