mirror of
https://github.com/danog/psalm.git
synced 2024-11-30 04:39:00 +01:00
1871 lines
62 KiB
PHP
1871 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 FunctionTemplateTest 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 iterable<string,array{string,assertions?:array<string,string>,error_levels?:string[]}>
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*/
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public function providerValidCodeParse()
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{
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return [
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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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'validPsalmTemplatedFunctionType' => [
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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> $arr
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* @return list<T>
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*/
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function my_array_keys($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' => 'list<string>',
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],
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],
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'genericNonEmptyArrayKeys' => [
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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 non-empty-array<T, mixed> $arr
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* @return non-empty-list<T>
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*/
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function my_array_keys($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' => 'non-empty-list<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<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<array-key, 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($arr);
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}
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/** @var mixed */
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$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' => [
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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> $arr
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* @return TValue|null
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*/
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function my_array_pop(array &$arr) {
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return array_pop($arr);
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}
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$b = ["a" => 5, "c" => 6];
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$a = my_array_pop($b);',
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'assertions' => [
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'$a' => 'int|null',
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'$b' => 'array<string, int>',
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],
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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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'replaceChildTypeWithGenerator' => [
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'<?php
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/**
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* @template TKey as array-key
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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 */
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function takesArrayOfStdClass(array $p): void {}',
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],
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'splatTemplateParam' => [
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'<?php
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/**
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* @template TKey as array-key
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* @template TValue
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*
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* @param array<TKey, TValue> $arr
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* @param array $arr2
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* @return array<TKey, TValue>
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*/
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function splat_proof(array $arr, array $arr2) {
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return $arr;
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}
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$foo = [
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[1, 2, 3],
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[1, 2],
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];
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$a = splat_proof(...$foo);',
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'assertions' => [
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'$a' => 'array<int, int>',
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],
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],
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'passArrayByRef' => [
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'<?php
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function acceptsStdClass(stdClass $_p): void {}
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$q = [new stdClass];
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acceptsStdClass(fNoRef($q));
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acceptsStdClass(fRef($q));
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acceptsStdClass(fNoRef($q));
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/**
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* @template TKey as array-key
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* @template TValue
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*
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* @param array<TKey, TValue> $_arr
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* @return null|TValue
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* @psalm-ignore-nullable-return
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*/
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function fRef(array &$_arr) {
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return array_shift($_arr);
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}
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/**
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* @template TKey as array-key
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* @template TValue
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*
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* @param array<TKey, TValue> $_arr
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* @return null|TValue
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* @psalm-ignore-nullable-return
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*/
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function fNoRef(array $_arr) {
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return array_shift($_arr);
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}',
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],
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'classTemplateAsCorrect' => [
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'<?php
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class Foo {}
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class FooChild extends Foo {}
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/**
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* @template T as Foo
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* @param T $x
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* @return T
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*/
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function bar($x) {
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return $x;
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}
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bar(new Foo());
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bar(new FooChild());',
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],
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'classTemplateOfCorrect' => [
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'<?php
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class Foo {}
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class FooChild extends Foo {}
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/**
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* @template T of Foo
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* @param T $x
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* @return T
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*/
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function bar($x) {
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return $x;
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}
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bar(new Foo());
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bar(new FooChild());',
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],
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'classTemplateAsInterface' => [
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'<?php
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interface Foo {}
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interface FooChild extends Foo {}
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class FooImplementer implements Foo {}
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/**
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* @template T as Foo
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* @param T $x
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* @return T
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*/
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function bar($x) {
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return $x;
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}
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function takesFoo(Foo $f) : void {
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bar($f);
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}
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function takesFooChild(FooChild $f) : void {
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bar($f);
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}
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function takesFooImplementer(FooImplementer $f) : void {
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bar($f);
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}',
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],
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'templateFunctionVar' => [
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'<?php
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namespace A\B;
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class C {
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public function bar() : void {}
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}
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interface D {}
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/**
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* @template T as C
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* @return T
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*/
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function foo($some_t) : C {
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/** @var T */
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$a = $some_t;
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$a->bar();
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/** @var T&D */
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$b = $some_t;
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$b->bar();
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/** @var D&T */
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$b = $some_t;
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$b->bar();
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return $a;
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}',
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'assertions' => [],
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'error_levels' => ['MixedAssignment', 'MissingParamType'],
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],
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'bindFirstTemplatedClosureParameterValid' => [
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'<?php
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/**
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* @template T
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*
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* @param Closure(T):void $t1
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* @param T $t2
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*/
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function apply(Closure $t1, $t2) : void {}
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apply(function(int $_i) : void {}, 5);
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apply(function(string $_i) : void {}, "hello");
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apply(function(stdClass $_i) : void {}, new stdClass);
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class A {}
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class AChild extends A {}
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apply(function(A $_i) : void {}, new AChild());',
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],
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'callableReturnsItself' => [
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'<?php
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$a =
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/**
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* @param callable():string $s
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* @return string
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*/
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function(callable $s) {
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return $s();
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};
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|
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/**
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* @template T1
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* @param callable(callable():T1):T1 $s
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* @return void
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*/
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function takesReturnTCallable(callable $s) {}
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takesReturnTCallable($a);',
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],
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'nonBindingParamReturn' => [
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'<?php
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/**
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* @template T
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*
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* @param Closure():T $t1
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* @param T $t2
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*/
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function foo(Closure $t1, $t2) : void {}
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foo(
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function () : int {
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return 5;
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},
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"hello"
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);',
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],
|
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'templatedInterfaceMethodInheritReturnType' => [
|
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'<?php
|
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class Foo {}
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class SomeIterator implements IteratorAggregate
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{
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public function getIterator() {
|
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yield new Foo;
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}
|
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}
|
|
|
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$i = (new SomeIterator())->getIterator();',
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[
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'$i' => 'Traversable<mixed, mixed>',
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],
|
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],
|
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'upcastArrayToIterable' => [
|
|
'<?php
|
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/**
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* @template K
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* @template V
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* @param iterable<K,V> $collection
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* @return V
|
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* @psalm-suppress InvalidReturnType
|
|
*/
|
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function first($collection) {}
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$one = first([1,2,3]);',
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[
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'$one' => 'int',
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],
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],
|
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'templateIntersectionLeft' => [
|
|
'<?php
|
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interface I1 {}
|
|
interface I2 {}
|
|
|
|
/**
|
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* @template T as I1&I2
|
|
* @param T $a
|
|
*/
|
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function templatedBar(I1 $a) : void {}',
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|
],
|
|
'templateIntersectionRight' => [
|
|
'<?php
|
|
interface I1 {}
|
|
interface I2 {}
|
|
|
|
/**
|
|
* @template T as I1&I2
|
|
* @param T $b
|
|
*/
|
|
function templatedBar(I2 $b) : void {}',
|
|
],
|
|
'matchMostSpecificTemplate' => [
|
|
'<?php
|
|
/**
|
|
* @template TReturn
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|
* @param callable():(\Generator<mixed, mixed, mixed, TReturn>|TReturn) $gen
|
|
* @return array<int, TReturn>
|
|
*/
|
|
function call(callable $gen) : array {
|
|
$return = $gen();
|
|
if ($return instanceof Generator) {
|
|
return [$return->getReturn()];
|
|
}
|
|
/** @var array<int, TReturn> */
|
|
$wrapped_gen = [$gen];
|
|
return $wrapped_gen;
|
|
}
|
|
|
|
$arr = call(
|
|
function() {
|
|
yield 1;
|
|
return "hello";
|
|
}
|
|
);',
|
|
[
|
|
'$arr' => 'array<int, string>',
|
|
],
|
|
],
|
|
'templateOfWithSpace' => [
|
|
'<?php
|
|
/**
|
|
* @template T of array<int, mixed>
|
|
*/
|
|
class Foo
|
|
{
|
|
}
|
|
|
|
/**
|
|
* @param Foo<array<int, DateTime>> $a
|
|
*/
|
|
function bar(Foo $a) : void {}',
|
|
],
|
|
'allowUnionTypeParam' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param callable(T) $x
|
|
* @param array<T> $y
|
|
*/
|
|
function example($x, $y): void {}
|
|
|
|
example(
|
|
/**
|
|
* @param int|false $x
|
|
*/
|
|
function($x): void {},
|
|
[strpos("str", "str")]
|
|
);',
|
|
],
|
|
'ignoreTooManyArrayArgs' => [
|
|
'<?php
|
|
|
|
function takesArray(array $arr) : void {}
|
|
|
|
/**
|
|
* @psalm-suppress TooManyTemplateParams
|
|
* @var array<int, int, int>
|
|
*/
|
|
$b = [1, 2, 3];
|
|
takesArray($b);',
|
|
],
|
|
'functionTemplateUnionType' => [
|
|
'<?php
|
|
/**
|
|
* @template T0 as int|string
|
|
* @param T0 $t
|
|
* @return T0
|
|
*/
|
|
function foo($t) {
|
|
return $t;
|
|
}
|
|
|
|
$s = foo("hello");
|
|
$i = foo(5);',
|
|
'assertions' => [
|
|
'$s' => 'string',
|
|
'$i' => 'int',
|
|
],
|
|
],
|
|
'reconcileTraversableTemplatedAndNormal' => [
|
|
'<?php
|
|
function foo(Traversable $t): void {
|
|
if ($t instanceof IteratorAggregate) {
|
|
$a = $t->getIterator();
|
|
$t = $a;
|
|
}
|
|
|
|
if (!$t instanceof Iterator) {
|
|
return;
|
|
}
|
|
|
|
if (rand(0, 1) && rand(0, 1)) {
|
|
$t->next();
|
|
}
|
|
}',
|
|
],
|
|
'keyOfTemplate' => [
|
|
'<?php
|
|
/**
|
|
* @template T as array
|
|
* @template K as key-of<T>
|
|
*
|
|
* @param T $o
|
|
* @param K $name
|
|
*
|
|
* @return T[K]
|
|
*/
|
|
function getOffset(array $o, $name) {
|
|
return $o[$name];
|
|
}
|
|
|
|
$a = ["foo" => "hello", "bar" => 2];
|
|
|
|
$b = getOffset($a, "foo");
|
|
$c = getOffset($a, "bar");',
|
|
[
|
|
'$b' => 'string',
|
|
'$c' => 'int',
|
|
],
|
|
],
|
|
'dontGeneraliseBoundParamWithWiderCallable' => [
|
|
'<?php
|
|
class C {
|
|
public function foo() : void {}
|
|
}
|
|
|
|
/**
|
|
* @psalm-template T
|
|
* @psalm-param T $t
|
|
* @psalm-param callable(?T):void $callable
|
|
* @return T
|
|
*/
|
|
function makeConcrete($t, callable $callable) {
|
|
$callable(rand(0, 1) ? $t : null);
|
|
return $t;
|
|
}
|
|
|
|
$c = makeConcrete(new C(), function (?C $c) : void {});',
|
|
[
|
|
'$c' => 'C',
|
|
],
|
|
],
|
|
'allowTemplateTypeBeingUsedInsideFunction' => [
|
|
'<?php
|
|
/**
|
|
* @template T of DateTime
|
|
* @param callable(T) $callable
|
|
* @param T $value
|
|
*/
|
|
function foo(callable $callable, DateTime $value) : void {
|
|
$callable($value);
|
|
}',
|
|
],
|
|
'callFindAnother' => [
|
|
'<?php
|
|
/**
|
|
* @template T as Foo
|
|
* @param T $foo
|
|
* @return T
|
|
*/
|
|
function loader($foo) {
|
|
return $foo::getAnother();
|
|
}
|
|
|
|
class Foo {
|
|
/** @return static */
|
|
public static function getAnother() {
|
|
return new static();
|
|
}
|
|
}',
|
|
],
|
|
'templatedVarOnReturn' => [
|
|
'<?php
|
|
namespace Ns;
|
|
|
|
class A {}
|
|
class B {}
|
|
|
|
/**
|
|
* @template T
|
|
* @param T $t
|
|
* @return T
|
|
*/
|
|
function getAOrB($t) {
|
|
if ($t instanceof A) {
|
|
/** @var T */
|
|
return new A();
|
|
}
|
|
|
|
/** @var T */
|
|
return new B();
|
|
}',
|
|
],
|
|
'assertOnTemplatedValue' => [
|
|
'<?php
|
|
/**
|
|
* @template I
|
|
* @param I $foo
|
|
*/
|
|
function bar($foo): void {
|
|
if (is_string($foo)) {}
|
|
if (!is_string($foo)) {}
|
|
if (is_int($foo)) {}
|
|
if (!is_int($foo)) {}
|
|
if (is_numeric($foo)) {}
|
|
if (!is_numeric($foo)) {}
|
|
if (is_scalar($foo)) {}
|
|
if (!is_scalar($foo)) {}
|
|
if (is_bool($foo)) {}
|
|
if (!is_bool($foo)) {}
|
|
if (is_object($foo)) {}
|
|
if (!is_object($foo)) {}
|
|
if (is_callable($foo)) {}
|
|
if (!is_callable($foo)) {}
|
|
}'
|
|
],
|
|
'interpretFunctionCallableReturnValue' => [
|
|
'<?php
|
|
final class Id
|
|
{
|
|
/**
|
|
* @var string
|
|
*/
|
|
private $id;
|
|
|
|
private function __construct(string $id)
|
|
{
|
|
$this->id = $id;
|
|
}
|
|
|
|
public static function fromString(string $id): self
|
|
{
|
|
return new self($id);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @template T
|
|
* @psalm-param callable(string): T $generator
|
|
* @psalm-return callable(): T
|
|
*/
|
|
function idGenerator(callable $generator)
|
|
{
|
|
return static function () use ($generator) {
|
|
return $generator("random id");
|
|
};
|
|
}
|
|
|
|
function client(Id $id): void
|
|
{
|
|
}
|
|
|
|
$staticIdGenerator = idGenerator([Id::class, "fromString"]);
|
|
client($staticIdGenerator());'
|
|
],
|
|
'noCrashWhenTemplatedClassIsStatic' => [
|
|
'<?php
|
|
abstract class Model {
|
|
/** @return static */
|
|
public function newInstance() {
|
|
return new static();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @template T of Model
|
|
* @param T $m
|
|
* @return T
|
|
*/
|
|
function foo(Model $m) : Model {
|
|
return $m->newInstance();
|
|
}'
|
|
],
|
|
'unboundVariableIsEmpty' => [
|
|
'<?php
|
|
/**
|
|
* @template TE
|
|
* @template TR
|
|
*
|
|
* @param TE $elt
|
|
* @param TR ...$elts
|
|
*
|
|
* @return TE|TR
|
|
*/
|
|
function collect($elt, ...$elts) {
|
|
$ret = $elt;
|
|
foreach ($elts as $item) {
|
|
if (rand(0, 1)) {
|
|
$ret = $item;
|
|
}
|
|
}
|
|
return $ret;
|
|
}
|
|
|
|
echo collect("a");'
|
|
],
|
|
'paramOutDontLeak' => [
|
|
'<?php
|
|
/**
|
|
* @template TKey as array-key
|
|
* @template TValue
|
|
*
|
|
* @param array<TKey, TValue> $arr
|
|
* @param-out list<TValue> $arr
|
|
*/
|
|
function example_sort_by_ref(array &$arr): bool {
|
|
$arr = array_values($arr);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* @param array<int, array{0: int, 1: string}> $array
|
|
* @return list<array{0: int, 1: string}>
|
|
*/
|
|
function example(array $array): array {
|
|
example_sort_by_ref($array);
|
|
return $array;
|
|
}',
|
|
],
|
|
'narrowTemplateTypeWithIsObject' => [
|
|
'<?php
|
|
function takesObject(object $object): void {}
|
|
|
|
/**
|
|
* @template T as mixed
|
|
* @param T $value
|
|
*/
|
|
function example($value): void {
|
|
if (is_object($value)) {
|
|
takesObject($value);
|
|
}
|
|
}'
|
|
],
|
|
'falseDefault' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param T $v
|
|
* @return T
|
|
*/
|
|
function exampleWithNullDefault($v = false) {
|
|
return $v;
|
|
}'
|
|
],
|
|
'nullDefault' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param T $v
|
|
* @return T
|
|
*/
|
|
function exampleWithNullDefault($v = null) {
|
|
return $v;
|
|
}'
|
|
],
|
|
'uasortCallable' => [
|
|
'<?php
|
|
/**
|
|
* @template T of object
|
|
* @psalm-param array<T> $collection
|
|
* @psalm-param callable(T, T): int $sorter
|
|
* @psalm-return array<T>
|
|
*/
|
|
function order(array $collection, callable $sorter): array {
|
|
usort($collection, $sorter);
|
|
|
|
return $collection;
|
|
}'
|
|
],
|
|
'callableInference' => [
|
|
'<?php
|
|
class Foo {}
|
|
class FooChild extends Foo {}
|
|
class Bar {}
|
|
|
|
/**
|
|
* @psalm-template ThingType of Foo
|
|
* @psalm-param ThingType $t
|
|
* @return ThingType|Bar
|
|
*/
|
|
function from_other(Foo $t) {
|
|
if (rand(0, 1)) {
|
|
return new Bar();
|
|
}
|
|
return $t;
|
|
}
|
|
|
|
/**
|
|
* @param list<FooChild> $a
|
|
* @return list<Bar|FooChild>
|
|
*/
|
|
function baz(array $a) {
|
|
return array_map("from_other", $a);
|
|
}'
|
|
],
|
|
'templateFlipIntersection' => [
|
|
'<?php
|
|
/**
|
|
* @template T as object
|
|
* @template S as object
|
|
* @param S&T $item
|
|
* @return T&S
|
|
*/
|
|
function filter(object $item) {
|
|
return $item;
|
|
}',
|
|
],
|
|
'splatIntoTemplatedArray' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param array<T> ...$iterators
|
|
* @return Generator<T>
|
|
*/
|
|
function joinBySplat(array ...$iterators): iterable {
|
|
foreach ($iterators as $iter) {
|
|
foreach ($iter as $value) {
|
|
yield $value;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return Generator<array<int>>
|
|
*/
|
|
function genIters(): Generator {
|
|
yield [1,2,3];
|
|
yield [4,5,6];
|
|
}
|
|
|
|
$values = joinBySplat(...genIters());
|
|
|
|
foreach ($values as $value) {
|
|
echo $value;
|
|
}'
|
|
],
|
|
'allowTemplatedCast' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-template Tk of array-key
|
|
* @psalm-param Tk $key
|
|
*/
|
|
function at($key) : void {
|
|
echo (string) $key;
|
|
}'
|
|
],
|
|
'uksortNoNamespace' => [
|
|
'<?php
|
|
/**
|
|
* @template Tk of array-key
|
|
* @template Tv
|
|
*
|
|
* @param array<Tk, Tv> $result
|
|
* @param (callable(Tk, Tk): int) $comparator
|
|
*
|
|
* @preturn array<Tk, Tv>
|
|
*/
|
|
function sort_by_key(array $result, callable $comparator): array
|
|
{
|
|
\uksort($result, $comparator);
|
|
return $result;
|
|
}'
|
|
],
|
|
'uksortNamespaced' => [
|
|
'<?php
|
|
namespace Psl\Arr;
|
|
|
|
/**
|
|
* @template Tk of array-key
|
|
* @template Tv
|
|
*
|
|
* @param array<Tk, Tv> $result
|
|
* @param (callable(Tk, Tk): int) $comparator
|
|
*
|
|
* @preturn array<Tk, Tv>
|
|
*/
|
|
function sort_by_key(array $result, callable $comparator): array
|
|
{
|
|
\uksort($result, $comparator);
|
|
return $result;
|
|
}'
|
|
],
|
|
'mockObject' => [
|
|
'<?php
|
|
class MockObject {}
|
|
|
|
/**
|
|
* @psalm-template T1 of object
|
|
* @psalm-param class-string<T1> $originalClassName
|
|
* @psalm-return MockObject&T1
|
|
*/
|
|
function foo(string $originalClassName): MockObject {
|
|
return createMock($originalClassName);
|
|
}
|
|
|
|
/**
|
|
* @psalm-suppress InvalidReturnType
|
|
* @psalm-suppress InvalidReturnStatement
|
|
*
|
|
* @psalm-template T2 of object
|
|
* @psalm-param class-string<T2> $originalClassName
|
|
* @psalm-return MockObject&T2
|
|
*/
|
|
function createMock(string $originalClassName): MockObject {
|
|
return new MockObject;
|
|
}'
|
|
],
|
|
'testStringCallableInference' => [
|
|
'<?php
|
|
class A {
|
|
public static function dup(string $a): string {
|
|
return $a . $a;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @template T
|
|
* @param iterable<T> $iter
|
|
* @return list<T>
|
|
*/
|
|
function toArray(iterable $iter): array {
|
|
$data = [];
|
|
foreach ($iter as $key => $val) {
|
|
$data[] = $val;
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* @template T
|
|
* @template U
|
|
* @param callable(T): U $predicate
|
|
* @return callable(iterable<T>): iterable<U>
|
|
*/
|
|
function map(callable $predicate): callable {
|
|
return
|
|
/** @param iterable<T> $iter */
|
|
function(iterable $iter) use ($predicate): iterable {
|
|
foreach ($iter as $key => $value) {
|
|
yield $key => $predicate($value);
|
|
}
|
|
};
|
|
}
|
|
|
|
/** @param list<string> $strings */
|
|
function _test(array $strings): void {}
|
|
$a = map([A::class, "dup"])(["a", "b", "c"]);',
|
|
[
|
|
'$a' => 'iterable<mixed, string>'
|
|
]
|
|
],
|
|
'testClosureCallableInference' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param iterable<T> $iter
|
|
* @return list<T>
|
|
*/
|
|
function toArray(iterable $iter): array {
|
|
$data = [];
|
|
foreach ($iter as $key => $val) {
|
|
$data[] = $val;
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* @template T
|
|
* @template U
|
|
* @param callable(T): U $predicate
|
|
* @return callable(iterable<T>): iterable<U>
|
|
*/
|
|
function map(callable $predicate): callable {
|
|
return
|
|
/** @param iterable<T> $iter */
|
|
function(iterable $iter) use ($predicate): iterable {
|
|
foreach ($iter as $key => $value) {
|
|
yield $key => $predicate($value);
|
|
}
|
|
};
|
|
}
|
|
|
|
/** @param list<string> $strings */
|
|
function _test(array $strings): void {}
|
|
|
|
$a = map(
|
|
function (string $a) {
|
|
return $a . $a;
|
|
}
|
|
)(["a", "b", "c"]);',
|
|
[
|
|
'$a' => 'iterable<mixed, string>'
|
|
]
|
|
],
|
|
'possiblyNullMatchesTemplateType' => [
|
|
'<?php
|
|
/**
|
|
* @template T as object
|
|
* @param T $o
|
|
* @return T
|
|
*/
|
|
function takesObject(object $o) : object {
|
|
return $o;
|
|
}
|
|
|
|
class A {}
|
|
|
|
/** @psalm-suppress PossiblyNullArgument */
|
|
$a = takesObject(rand(0, 1) ? new A() : null);',
|
|
[
|
|
'$a' => 'A',
|
|
]
|
|
],
|
|
'possiblyNullMatchesAnotherTemplateType' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-template RealObjectType of object
|
|
*
|
|
* @psalm-param class-string<RealObjectType> $className
|
|
* @psalm-param Closure(
|
|
* RealObjectType|null
|
|
* ) : void $initializer
|
|
*/
|
|
function createProxy(
|
|
string $className,
|
|
Closure $initializer
|
|
) : void {}
|
|
|
|
class Foo {}
|
|
|
|
createProxy(Foo::class, function (?Foo $f) : void {});'
|
|
],
|
|
'assertIntersectionsOnTemplatedTypes' => [
|
|
'<?php
|
|
interface Input {}
|
|
interface HasFoo {}
|
|
interface HasBar {}
|
|
|
|
/**
|
|
* @psalm-template InputType of Input
|
|
* @psalm-param InputType $input
|
|
* @psalm-return InputType&HasFoo
|
|
*/
|
|
function decorateWithFoo(Input $input): Input
|
|
{
|
|
assert($input instanceof HasFoo);
|
|
return $input;
|
|
}
|
|
|
|
/**
|
|
* @psalm-template InputType of Input
|
|
* @psalm-param InputType $input
|
|
* @psalm-return InputType&HasBar
|
|
*/
|
|
function decorateWithBar(Input $input): Input
|
|
{
|
|
assert($input instanceof HasBar);
|
|
return $input;
|
|
}
|
|
|
|
/** @param HasFoo&HasBar $input */
|
|
function useFooAndBar(object $input): void {}
|
|
|
|
function consume(Input $input): void {
|
|
useFooAndBar(decorateWithFoo(decorateWithBar($input)));
|
|
}'
|
|
],
|
|
'bottomTypeInClosureShouldNotBind' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param class-string<T> $className
|
|
* @param Closure(T):void $outmaker
|
|
* @return T
|
|
*/
|
|
function createProxy(
|
|
string $className,
|
|
Closure $outmaker
|
|
) : object {
|
|
$t = new $className();
|
|
$outmaker($t);
|
|
return $t;
|
|
}
|
|
|
|
class A {
|
|
public function bar() : void {}
|
|
}
|
|
|
|
createProxy(A::class, function(object $o):void {})->bar();'
|
|
],
|
|
'bottomTypeInNamespacedCallableShouldMatch' => [
|
|
'<?php
|
|
namespace Ns;
|
|
|
|
/**
|
|
* @template T
|
|
* @param class-string<T> $className
|
|
* @param callable(T):void $outmaker
|
|
* @return T
|
|
*/
|
|
function createProxy(
|
|
string $className,
|
|
callable $outmaker
|
|
) : object {
|
|
$t = new $className();
|
|
$outmaker($t);
|
|
return $t;
|
|
}
|
|
|
|
class A {
|
|
public function bar() : void {}
|
|
}
|
|
|
|
function foo(A $o):void {}
|
|
|
|
createProxy(A::class, \'Ns\foo\')->bar();',
|
|
],
|
|
'compareToEmptyArray' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
*
|
|
* @param T $a
|
|
* @return T
|
|
*/
|
|
function ex($a) {
|
|
if($a === []) {}
|
|
return $a;
|
|
}'
|
|
],
|
|
'compareToFalse' => [
|
|
'<?php
|
|
/**
|
|
* @template T as int|false
|
|
* @param T $value
|
|
* @return int
|
|
*/
|
|
function foo($value) {
|
|
if ($value === false) {
|
|
return -1;
|
|
}
|
|
return $value;
|
|
}'
|
|
],
|
|
'refineTemplateTypeNotEmpty' => [
|
|
'<?php
|
|
/**
|
|
* @template T of Iterator|null
|
|
* @param T $iterator
|
|
*/
|
|
function toArray($iterator): array
|
|
{
|
|
if ($iterator) {
|
|
return iterator_to_array($iterator);
|
|
}
|
|
|
|
return [];
|
|
}'
|
|
],
|
|
'manyGenericParams' => [
|
|
'<?php
|
|
/**
|
|
* @template TArg1
|
|
* @template TArg2
|
|
* @template TRes
|
|
*
|
|
* @psalm-param Closure(TArg1, TArg2): TRes $func
|
|
* @psalm-param TArg1 $arg1
|
|
*
|
|
* @psalm-return Closure(TArg2): TRes
|
|
*/
|
|
function partial(Closure $func, $arg1): Closure {
|
|
return fn($arg2) => $func($arg1, $arg2);
|
|
}
|
|
|
|
/**
|
|
* @template TArg1
|
|
* @template TArg2
|
|
* @template TRes
|
|
*
|
|
* @template T as (Closure(): TRes | Closure(TArg1): TRes | Closure(TArg1, TArg2): TRes)
|
|
*
|
|
* @psalm-param T $fn
|
|
* @psalm-param TArg1 $arg
|
|
*/
|
|
function foo(Closure $fn, $arg): void {
|
|
$a = partial($fn, $arg);
|
|
}'
|
|
],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @return iterable<string,array{string,error_message:string,2?:string[],3?:bool,4?:string}>
|
|
*/
|
|
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' => 'MixedArgumentTypeCoercion',
|
|
],
|
|
'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',
|
|
],
|
|
'bindFirstTemplatedClosureParameterInvalidScalar' => [
|
|
'<?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' => 'ArgumentTypeCoercion',
|
|
],
|
|
|
|
'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' => 'ArgumentTypeCoercion',
|
|
],
|
|
'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' => 'ArgumentTypeCoercion',
|
|
],
|
|
'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' => 'ArgumentTypeCoercion',
|
|
],
|
|
'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',
|
|
],
|
|
'preventTemplateTypeAsBeingUsedInsideFunction' => [
|
|
'<?php
|
|
/**
|
|
* @template T of DateTime
|
|
* @param callable(T) $callable
|
|
*/
|
|
function foo(callable $callable) : void {
|
|
$callable(new \DateTime());
|
|
}',
|
|
'error_message' => 'InvalidArgument',
|
|
],
|
|
'preventWrongTemplateBeingPassed' => [
|
|
'<?php
|
|
/**
|
|
* @template T of DateTime
|
|
* @template T2 of DateTime
|
|
* @param callable(T): T $parameter
|
|
* @param T2 $value
|
|
* @return T
|
|
*/
|
|
function foo(callable $parameter, $value)
|
|
{
|
|
return $parameter($value);
|
|
}',
|
|
'error_message' => 'InvalidArgument',
|
|
],
|
|
'preventTemplateTypeReturnMoreGeneral' => [
|
|
'<?php
|
|
/**
|
|
* @template T of DateTimeInterface
|
|
* @param T $x
|
|
* @return T
|
|
*/
|
|
function foo($x)
|
|
{
|
|
return new \DateTime();
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'preventReturningString' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @psalm-param T $t
|
|
* @return T
|
|
*/
|
|
function mirror($t) {
|
|
return "string";
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'unTemplatedVarOnReturn' => [
|
|
'<?php
|
|
namespace Ns;
|
|
|
|
class A {}
|
|
class B {}
|
|
|
|
/**
|
|
* @template T
|
|
* @param T $t
|
|
* @return T
|
|
*/
|
|
function getAOrB($t) {
|
|
if ($t instanceof A) {
|
|
return new A();
|
|
}
|
|
|
|
return new B();
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'templateReturnTypeOfCallableWithIncompatibleType' => [
|
|
'<?php
|
|
class A {}
|
|
|
|
class B {
|
|
public static function returnsObjectOrNull() : ?A {
|
|
return random_int(0, 1) ? new A() : null;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @psalm-template T as object
|
|
* @psalm-param callable() : T $callback
|
|
* @psalm-return T
|
|
*/
|
|
function makeResultSet(callable $callback)
|
|
{
|
|
return $callback();
|
|
}
|
|
|
|
makeResultSet([B::class, "returnsObjectOrNull"]);',
|
|
'error_message' => 'InvalidArgument',
|
|
],
|
|
'templateInvokeArg' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param callable(T):void $c
|
|
* @param T $param
|
|
*/
|
|
function apply(callable $c, $param):void{
|
|
call_user_func($c, $param);
|
|
}
|
|
|
|
class A {
|
|
public function __toString(){
|
|
return "a";
|
|
}
|
|
}
|
|
|
|
class B {}
|
|
|
|
class Printer{
|
|
public function __invoke(A $a) : void {
|
|
echo $a;
|
|
}
|
|
}
|
|
|
|
apply(new Printer(), new B());',
|
|
'error_message' => 'InvalidArgument'
|
|
],
|
|
'invalidTemplateDocblock' => [
|
|
'<?php
|
|
/** @template */
|
|
function f():void {}',
|
|
'error_message' => 'MissingDocblockType'
|
|
],
|
|
'returnNamedObjectWhereTemplateIsExpected' => [
|
|
'<?php
|
|
class Bar {}
|
|
|
|
/**
|
|
* @template T as object
|
|
* @param T $t
|
|
* @return T
|
|
*/
|
|
function shouldComplain(object $t) {
|
|
return new Bar();
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'returnIntersectionWhenTemplateIsExpectedForward' => [
|
|
'<?php
|
|
interface Baz {}
|
|
|
|
/**
|
|
* @template T as object
|
|
* @param T $t
|
|
* @return T&Baz
|
|
*/
|
|
function returnsTemplatedIntersection(object $t) {
|
|
return $t;
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'returnIntersectionWhenTemplateIsExpectedBackward' => [
|
|
'<?php
|
|
interface Baz {}
|
|
|
|
/**
|
|
* @template T as object
|
|
* @param T $t
|
|
* @return Baz&T
|
|
*/
|
|
function returnsTemplatedIntersection(object $t) {
|
|
return $t;
|
|
}',
|
|
'error_message' => 'InvalidReturnStatement',
|
|
],
|
|
'bottomTypeInClosureShouldClash' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param class-string<T> $className
|
|
* @param Closure(T):void $outmaker
|
|
* @return T
|
|
*/
|
|
function createProxy(
|
|
string $className,
|
|
Closure $outmaker
|
|
) : object {
|
|
$t = new $className();
|
|
$outmaker($t);
|
|
return $t;
|
|
}
|
|
|
|
class A {
|
|
public function bar() : void {}
|
|
}
|
|
|
|
class B {}
|
|
|
|
createProxy(A::class, function(B $o):void {})->bar();',
|
|
'error_message' => 'InvalidArgument'
|
|
],
|
|
'bottomTypeInNamespacedCallableShouldClash' => [
|
|
'<?php
|
|
namespace Ns;
|
|
|
|
/**
|
|
* @template T
|
|
* @param class-string<T> $className
|
|
* @param callable(T):void $outmaker
|
|
* @return T
|
|
*/
|
|
function createProxy(
|
|
string $className,
|
|
callable $outmaker
|
|
) : object {
|
|
$t = new $className();
|
|
$outmaker($t);
|
|
return $t;
|
|
}
|
|
|
|
class A {
|
|
public function bar() : void {}
|
|
}
|
|
|
|
class B {}
|
|
|
|
function foo(B $o):void {}
|
|
|
|
createProxy(A::class, \'Ns\foo\')->bar();',
|
|
'error_message' => 'InvalidArgument'
|
|
],
|
|
];
|
|
}
|
|
}
|