mirror of
https://github.com/danog/psalm.git
synced 2024-12-11 08:49:52 +01:00
911 lines
32 KiB
PHP
911 lines
32 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 FunctionTemplateAssertTest 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(): iterable
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{
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return [
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'assertTemplatedType' => [
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'<?php
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namespace Bar;
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interface Foo {}
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class Bar implements Foo {
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public function sayHello(): void {
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echo "Hello";
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}
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}
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/**
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* @param mixed $value
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* @param class-string<T> $type
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* @template T
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* @psalm-assert T $value
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*/
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function assertInstanceOf($value, string $type): void {
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// some code
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}
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// Returns concreate implementation of Foo, which in this case is Bar
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function getImplementationOfFoo(): Foo {
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return new Bar();
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}
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$bar = getImplementationOfFoo();
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assertInstanceOf($bar, Bar::class);
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$bar->sayHello();',
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],
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'assertInstanceofTemplatedClassMethodUnknownClass' => [
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'<?php
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namespace Bar;
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class C {
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/**
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* @template T
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* @param class-string<T> $expected
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* @param mixed $actual
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* @psalm-assert T $actual
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*/
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public function assertInstanceOf($expected, $actual) : void {}
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/**
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* @param class-string $c
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*/
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function bar(string $c, object $e) : void {
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$this->assertInstanceOf($c, $e);
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echo $e->getCode();
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}
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}',
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[],
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['MixedArgument', 'MixedMethodCall'],
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],
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'assertInstanceofTemplatedClassMethodUnknownStringClass' => [
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'<?php
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namespace Bar;
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class C {
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/**
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* @template T
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* @param class-string<T> $expected
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* @param mixed $actual
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* @psalm-assert T $actual
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*/
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public function assertInstanceOf($expected, $actual) : void {}
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function bar(string $c, object $e) : void {
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$this->assertInstanceOf($c, $e);
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echo $e->getCode();
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}
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}',
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[],
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['MixedArgument', 'MixedMethodCall', 'ArgumentTypeCoercion'],
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],
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'assertInstanceofTemplatedFunctionUnknownClass' => [
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'<?php
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namespace Bar;
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/**
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* @template T
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* @param class-string<T> $expected
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* @param mixed $actual
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* @psalm-assert T $actual
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*/
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function assertInstanceOf($expected, $actual) : void {}
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/**
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* @param class-string $c
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*/
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function bar(string $c, object $e) : void {
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assertInstanceOf($c, $e);
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echo $e->getCode();
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}',
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[],
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['MixedArgument', 'MixedMethodCall'],
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],
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'assertInstanceofTemplatedFunctionUnknownStringClass' => [
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'<?php
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namespace Bar;
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/**
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* @template T
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* @param class-string<T> $expected
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* @param mixed $actual
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* @psalm-assert T $actual
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*/
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function assertInstanceOf($expected, $actual) : void {}
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function bar(string $c, object $e) : void {
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assertInstanceOf($c, $e);
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echo $e->getCode();
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}',
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[],
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['MixedArgument', 'MixedMethodCall', 'ArgumentTypeCoercion'],
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],
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'assertTypedArray' => [
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'<?php
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namespace Bar;
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class A {
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public function foo() : void {}
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}
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/**
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* @template T
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* @param class-string<T> $expected
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* @param mixed $actual
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* @psalm-assert T[] $actual
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*/
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function assertArrayOf($expected, $actual) : void {}
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function bar(array $arr) : void {
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assertArrayOf(A::class, $arr);
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foreach ($arr as $a) {
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$a->foo();
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}
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}',
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],
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'assertTemplatedTypeString' => [
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'<?php
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interface Foo {
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function bat() : void;
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}
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/**
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* @param mixed $value
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* @param class-string<T> $type
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* @template T
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* @psalm-assert T $value
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*/
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function assertInstanceOf($value, string $type): void {
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// some code
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}
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function getFoo() : Foo {
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return new class implements Foo {
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public function bat(): void {
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echo "Hello";
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}
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};
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}
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$f = getFoo();
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/**
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* @var mixed
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*/
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$class = "hello";
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/** @psalm-suppress MixedArgument */
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assertInstanceOf($f, $class);
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$f->bat();',
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[
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'$f' => 'Foo',
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],
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],
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'suppressRedundantCondition' => [
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'<?php
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namespace Bar;
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class A {}
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/**
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* @param class-string<T> $expected
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* @param mixed $actual
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* @param string $message
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*
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* @template T
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* @psalm-assert T $actual
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*/
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function assertInstanceOf($expected, $actual) : void {
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}
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/**
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* @psalm-suppress RedundantCondition
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*/
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function takesA(A $a) : void {
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assertInstanceOf(A::class, $a);
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}',
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],
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'allowCanBeSameAfterAssertion' => [
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'<?php
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namespace Bar;
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/**
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* Asserts that two variables are the same.
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*
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* @template T
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* @param T $expected
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* @param mixed $actual
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* @psalm-assert =T $actual
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*/
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function assertSame($expected, $actual) : void {}
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$a = rand(0, 1) ? "goodbye" : "hello";
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$b = rand(0, 1) ? "hello" : "goodbye";
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assertSame($a, $b);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertSame($c, $d);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertSame($d, $c);
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$c = 4;
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$d = rand(0, 1) ? 4 : 5;
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assertSame($d, $c);
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$d = rand(0, 1) ? 4 : null;
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assertSame(null, $d);
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function assertStringsAreSame(string $a, string $b) : void {
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assertSame($a, $b);
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}
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/** @param mixed $a */
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function assertMaybeStringsAreSame($a, string $b) : void {
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assertSame($a, $b);
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}
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/** @param mixed $b */
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function alsoAssertMaybeStringsAreSame(string $a, $b) : void {
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assertSame($a, $b);
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}',
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],
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'allowCanBeSameAfterStaticMethodAssertion' => [
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'<?php
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namespace Bar;
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class Assertion {
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/**
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* Asserts that two variables are the same.
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*
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* @template T
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* @param T $expected
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* @param mixed $actual
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* @psalm-assert =T $actual
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*/
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public static function assertSame($expected, $actual) : void {}
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}
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$a = rand(0, 1) ? "goodbye" : "hello";
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$b = rand(0, 1) ? "hello" : "goodbye";
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Assertion::assertSame($a, $b);',
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],
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'allowCanBeNotSameAfterAssertion' => [
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'<?php
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namespace Bar;
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/**
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* Asserts that two variables are the same.
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*
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* @template T
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* @param T $expected
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* @param mixed $actual
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* @psalm-assert !=T $actual
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*/
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function assertNotSame($expected, $actual) : void {}
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$a = rand(0, 1) ? "goodbye" : "hello";
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$b = rand(0, 1) ? "hello" : "goodbye";
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assertNotSame($a, $b);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertNotSame($c, $d);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertNotSame($d, $c);
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$c = 4;
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$d = rand(0, 1) ? 4 : 5;
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assertNotSame($d, $c);
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function foo(string $a, string $b) : void {
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assertNotSame($a, $b);
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}',
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],
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'allowCanBeEqualAfterAssertion' => [
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'<?php
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/**
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* Asserts that two variables are the same.
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*
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* @template T
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* @param T $expected
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* @param mixed $actual
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* @psalm-assert ~T $actual
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*/
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function assertEqual($expected, $actual) : void {}
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$a = rand(0, 1) ? "goodbye" : "hello";
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$b = rand(0, 1) ? "hello" : "goodbye";
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assertEqual($a, $b);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertEqual($c, $d);
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$c = "hello";
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$d = rand(0, 1) ? "hello" : "goodbye";
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assertEqual($d, $c);
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$c = 4;
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$d = rand(0, 1) ? 3.0 : 4.0;
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assertEqual($d, $c);
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$c = 4.0;
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$d = rand(0, 1) ? 3 : 4;
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assertEqual($d, $c);
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function foo(string $a, string $b) : void {
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assertEqual($a, $b);
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}',
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],
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'assertAllArrayOfClass' => [
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'<?php
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/**
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* @template T
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*
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* @psalm-assert iterable<mixed,T> $i
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*
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* @param iterable<mixed,mixed> $i
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* @param class-string<T> $type
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*/
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function assertAllInstanceOf(iterable $i, string $type): void {
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/** @psalm-suppress MixedAssignment */
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foreach ($i as $elt) {
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if (!$elt instanceof $type) {
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throw new \UnexpectedValueException("");
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}
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}
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}
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class A {}
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function getArray(): array {
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return [];
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}
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$array = getArray();
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assertAllInstanceOf($array, A::class);',
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[
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'$array' => 'array<array-key, A>',
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],
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],
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'assertAllIterableOfClass' => [
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'<?php
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/**
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* @template T
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*
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* @psalm-assert iterable<mixed,T> $i
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*
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* @param iterable<mixed,mixed> $i
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* @param class-string<T> $type
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*/
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function assertAllInstanceOf(iterable $i, string $type): void {
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/** @psalm-suppress MixedAssignment */
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foreach ($i as $elt) {
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if (!$elt instanceof $type) {
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throw new \UnexpectedValueException("");
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}
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}
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}
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class A {}
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function getIterable(): iterable {
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return [];
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}
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$iterable = getIterable();
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assertAllInstanceOf($iterable, A::class);',
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[
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'$iterable' => 'iterable<mixed, A>',
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],
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],
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'complicatedAssertAllInstanceOf' => [
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'<?php
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/**
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* @template T
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*
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* @psalm-assert-if-true iterable<mixed,T> $i
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*
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* @param iterable<mixed,mixed> $i
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* @param class-string<T> $type
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*/
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function allInstanceOf(iterable $i, string $type): bool {
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/** @psalm-suppress MixedAssignment */
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foreach ($i as $elt) {
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if (!$elt instanceof $type) {
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return false;
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}
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}
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return true;
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}
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interface IBlogPost { public function getId(): int; }
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function getData(): iterable {
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return [];
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}
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$data = getData();
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assert(allInstanceOf($data, IBlogPost::class));
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foreach ($data as $post) {
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echo $post->getId();
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}',
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],
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'assertUnionInNamespace' => [
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'<?php
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namespace Foo\Bar\Baz;
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/**
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* @psalm-template ExpectedType of object
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* @param mixed $value
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* @psalm-param class-string<ExpectedType> $interface
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* @psalm-assert ExpectedType|class-string<ExpectedType> $value
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*/
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function implementsInterface($value, $interface, string $message = ""): void {}
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/**
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* @psalm-template ExpectedType of object
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* @param mixed $value
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* @psalm-param class-string<ExpectedType> $interface
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* @psalm-assert null|ExpectedType|class-string<ExpectedType> $value
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*/
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function nullOrImplementsInterface(?object $value, $interface, string $message = ""): void {}
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interface A
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{
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}
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/**
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* @param mixed $value
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*
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* @psalm-return A|class-string<A>
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*/
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function consume($value) {
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implementsInterface($value, A::class);
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return $value;
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}
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/**
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* @param mixed $value
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*
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* @psalm-return A|class-string<A>|null
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*/
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function consume2($value)
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{
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nullOrImplementsInterface($value, A::class);
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return $value;
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}'
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],
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'assertTemplatedTemplateSimple' => [
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'<?php
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/**
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* @template T1
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*/
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class Clazz
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{
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/**
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* @param mixed $x
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*
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* @psalm-assert T1 $x
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*/
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public function is($x) : void {}
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}
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/**
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* @template T2
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*
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* @param Clazz<T2> $c
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*
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* @return T2
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*/
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function example(Clazz $c) {
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/** @var mixed */
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$x = 0;
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$c->is($x);
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return $x;
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}'
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],
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'assertTemplatedTemplateIfTrue' => [
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'<?php
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/**
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* @template T1
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*/
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class Clazz
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{
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/**
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* @param mixed $x
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*
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* @return bool
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*
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* @psalm-assert-if-true T1 $x
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*/
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public function is($x) : bool {
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return true;
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}
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}
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|
|
/**
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* @template T2
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*
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* @param Clazz<T2> $c
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*
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* @return T2|false
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*/
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function example(Clazz $c) {
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/** @var mixed */
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$x = 0;
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return $c->is($x) ? $x : false;
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}'
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],
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'assertOnClass' => [
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'<?php
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/**
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* @template T
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*/
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abstract class Type
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{
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/**
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* @param mixed $value
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* @return bool
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* @psalm-assert-if-true T $value
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*/
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abstract public function matches($value): bool;
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/**
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* @param mixed $value
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* @return mixed
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* @psalm-return T
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* @psalm-assert T $value
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*/
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public function assert($value)
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{
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assert($this->matches($value));
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return $value;
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}
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}'
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],
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|
'noCrashWhenAsserting' => [
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|
'<?php
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|
/**
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* @psalm-template ExpectedClassType of object
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|
* @psalm-param class-string<ExpectedClassType> $expectedType
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* @psalm-assert class-string<ExpectedClassType> $actualType
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*/
|
|
function assertIsA(string $expectedType, string $actualType): void {
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\assert(\is_a($actualType, $expectedType, true));
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}
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|
|
class Foo {
|
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/**
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* @psalm-template OriginalClass of object
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|
* @psalm-param class-string<OriginalClass> $originalClass
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|
* @psalm-return class-string<OriginalClass>|null
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|
*/
|
|
private function generateProxy(string $originalClass) : ?string {
|
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$generatedClassName = self::class . \'\\\\\' . $originalClass;
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|
|
if (class_exists($generatedClassName)) {
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assertIsA($originalClass, $generatedClassName);
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return $generatedClassName;
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}
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return null;
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}
|
|
}',
|
|
],
|
|
'castClassStringWithIsA' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-template RequestedClass of object
|
|
* @psalm-param class-string<RequestedClass> $expectedType
|
|
* @psalm-return class-string<RequestedClass>
|
|
*/
|
|
function castStringToClassString(string $expectedType, string $anyString): string {
|
|
\assert(\is_a($anyString, $expectedType, true));
|
|
return $anyString;
|
|
}'
|
|
],
|
|
'classTemplateAssert' => [
|
|
'<?php
|
|
/**
|
|
* @template ActualFieldType
|
|
*/
|
|
final class FieldValue
|
|
{
|
|
/** @var ActualFieldType */
|
|
public $value;
|
|
|
|
/** @param ActualFieldType $value */
|
|
public function __construct($value) {
|
|
$this->value = $value;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @template FieldDefinitionType
|
|
*
|
|
* @param string|bool|int|null $value
|
|
* @param FieldDefinition<FieldDefinitionType> $definition
|
|
*
|
|
* @return FieldValue<FieldDefinitionType>
|
|
*/
|
|
function fromScalarAndDefinition($value, FieldDefinition $definition) : FieldValue
|
|
{
|
|
$definition->assertAppliesToValue($value);
|
|
|
|
return new FieldValue($value);
|
|
}
|
|
|
|
/**
|
|
* @template ExpectedFieldType
|
|
*/
|
|
final class FieldDefinition
|
|
{
|
|
/**
|
|
* @param mixed $value
|
|
* @psalm-assert ExpectedFieldType $value
|
|
*/
|
|
public function assertAppliesToValue($value): void
|
|
{
|
|
throw new \Exception("bad");
|
|
}
|
|
}'
|
|
],
|
|
'assertThrowsInstanceOfFunction' => [
|
|
'<?php
|
|
namespace Foo;
|
|
|
|
/**
|
|
* @template T of \Throwable
|
|
* @psalm-param class-string<T> $exceptionType
|
|
* @psalm-assert T $outerEx
|
|
*/
|
|
function assertThrowsInstanceOf(\Throwable $outerEx, string $exceptionType) : void {
|
|
if (!($outerEx instanceof $exceptionType)) {
|
|
throw new \Exception("thrown instance of wrong type");
|
|
}
|
|
}'
|
|
],
|
|
'dontBleedTemplateTypeInArray' => [
|
|
'<?php
|
|
/**
|
|
* @psalm-template ExpectedType of object
|
|
* @psalm-param class-string<ExpectedType> $class
|
|
* @psalm-assert array<class-string<ExpectedType>> $value
|
|
*
|
|
* @param array<string> $value
|
|
* @param string $class
|
|
*/
|
|
function allIsAOf($value, $class): void {}
|
|
|
|
/**
|
|
* @psalm-template T of object
|
|
*
|
|
* @param array<string> $value
|
|
* @param class-string<T> $class
|
|
*
|
|
* @return array<class-string<T>>
|
|
*/
|
|
function f($value, $class) {
|
|
allIsAOf($value, $class);
|
|
|
|
return $value;
|
|
}'
|
|
],
|
|
];
|
|
}
|
|
|
|
/**
|
|
* @return iterable<string,array{string,error_message:string,2?:string[],3?:bool,4?:string}>
|
|
*/
|
|
public function providerInvalidCodeParse(): iterable
|
|
{
|
|
return [
|
|
'detectRedundantCondition' => [
|
|
'<?php
|
|
class A {}
|
|
|
|
/**
|
|
* @param class-string<T> $expected
|
|
* @param mixed $actual
|
|
* @param string $message
|
|
*
|
|
* @template T
|
|
* @psalm-assert T $actual
|
|
*/
|
|
function assertInstanceOf($expected, $actual) : void {
|
|
}
|
|
|
|
function takesA(A $a) : void {
|
|
assertInstanceOf(A::class, $a);
|
|
}',
|
|
'error_message' => 'RedundantCondition',
|
|
],
|
|
'detectAssertSameTypeDoesNotContainType' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert =T $actual
|
|
*/
|
|
function assertSame($expected, $actual) : void {}
|
|
|
|
$a = 5;
|
|
$b = "hello";
|
|
assertSame($a, $b);',
|
|
'error_message' => 'TypeDoesNotContainType',
|
|
],
|
|
'detectAssertAlwaysSame' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert =T $actual
|
|
*/
|
|
function assertSame($expected, $actual) : void {}
|
|
|
|
$a = 5;
|
|
$b = 5;
|
|
assertSame($a, $b);',
|
|
'error_message' => 'RedundantCondition',
|
|
],
|
|
'detectNeverCanBeSameAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert =T $actual
|
|
*/
|
|
function assertSame($expected, $actual) : void {}
|
|
|
|
$c = "helloa";
|
|
$d = rand(0, 1) ? "hello" : "goodbye";
|
|
assertSame($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType',
|
|
],
|
|
'detectNeverCanBeNotSameAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert !=T $actual
|
|
*/
|
|
function assertNotSame($expected, $actual) : void {}
|
|
|
|
$c = "helloa";
|
|
$d = rand(0, 1) ? "hello" : "goodbye";
|
|
assertNotSame($c, $d);',
|
|
'error_message' => 'RedundantCondition',
|
|
],
|
|
'detectNeverCanBeEqualAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert ~T $actual
|
|
*/
|
|
function assertEqual($expected, $actual) : void {}
|
|
|
|
$c = "helloa";
|
|
$d = rand(0, 1) ? "hello" : "goodbye";
|
|
assertEqual($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType',
|
|
],
|
|
'detectIntFloatNeverCanBeEqualAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert ~T $actual
|
|
*/
|
|
function assertEqual($expected, $actual) : void {}
|
|
|
|
$c = 4;
|
|
$d = rand(0, 1) ? 5.0 : 6.0;
|
|
assertEqual($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType',
|
|
],
|
|
'detectFloatIntNeverCanBeEqualAfterAssertion' => [
|
|
'<?php
|
|
|
|
/**
|
|
* Asserts that two variables are the same.
|
|
*
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @psalm-assert ~T $actual
|
|
*/
|
|
function assertEqual($expected, $actual) : void {}
|
|
|
|
$c = 4.0;
|
|
$d = rand(0, 1) ? 5 : 6;
|
|
assertEqual($c, $d);',
|
|
'error_message' => 'TypeDoesNotContainType',
|
|
],
|
|
'assertNotSameDifferentTypes' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @param string $message
|
|
* @psalm-assert !=T $actual
|
|
* @return void
|
|
*/
|
|
function assertNotSame($expected, $actual, $message = "") {}
|
|
|
|
function bar(string $i, array $j) : void {
|
|
assertNotSame($i, $j);
|
|
}',
|
|
'error_message' => 'RedundantCondition',
|
|
],
|
|
'assertNotSameDifferentTypesExplicitString' => [
|
|
'<?php
|
|
/**
|
|
* @template T
|
|
* @param T $expected
|
|
* @param mixed $actual
|
|
* @param string $message
|
|
* @psalm-assert !=T $actual
|
|
* @return void
|
|
*/
|
|
function assertNotSame($expected, $actual, $message = "") {}
|
|
|
|
function bar(array $j) : void {
|
|
assertNotSame("hello", $j);
|
|
}',
|
|
'error_message' => 'RedundantCondition',
|
|
],
|
|
|
|
];
|
|
}
|
|
}
|