Regression tests

Closes phpstan/phpstan#10580
Closes phpstan/phpstan#11939
Closes phpstan/phpstan#10338
Closes phpstan/phpstan#12048
Closes phpstan/phpstan#3107

Author: ondrejmirtes

tests/PHPStan/Analyser/nsrt/bug-10338.php

@@ -0,0 +1,12 @@
+<?php declare(strict_types = 1);
+
+use function PHPStan\Testing\assertType;
+
+function (): void {
+	$content = file_get_contents('');
+	if ($content == '') {
+		die;
+	}
+
+	assertType('string', $content);
+};

tests/PHPStan/Rules/Functions/CallToFunctionParametersRuleTest.php

@@ -1968,4 +1968,9 @@ public function testBug11418(): void
 		$this->analyse([__DIR__ . '/data/bug-11418.php'], []);
 	}
 
+	public function testBug3107(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-3107.php'], []);
+	}
+
 }

tests/PHPStan/Rules/Functions/data/bug-3107.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Bug3107;
+
+class Holder
+{
+	/** @var string */
+	public $val;
+}
+
+/** @param mixed $mixed */
+function test($mixed): void
+{
+	$holder = new Holder();
+	$holder->val = $mixed;
+
+	$a = [];
+	$a[$holder->val] = 1;
+	take($a);
+}
+
+/** @param array<string, int> $a */
+function take($a): void {}

tests/PHPStan/Rules/Methods/ReturnTypeRuleTest.php

@@ -1171,4 +1171,50 @@ public function testShortGetPropertyHook(): void
 		]);
 	}
 
+	public function testBug1O580(): void
+	{
+		if (PHP_VERSION_ID < 80000) {
+			$this->markTestSkipped('Test requires PHP 8.0.');
+		}
+
+		$this->analyse([__DIR__ . '/data/bug-10580.php'], [
+			[
+				'Method Bug10580\FooA::fooThisInterface() should return $this(Bug10580\FooA) but returns Bug10580\FooA.',
+				18,
+			],
+			[
+				'Method Bug10580\FooA::fooThisClass() should return $this(Bug10580\FooA) but returns Bug10580\FooA.',
+				19,
+			],
+			[
+				'Method Bug10580\FooA::fooThisSelf() should return $this(Bug10580\FooA) but returns Bug10580\FooA.',
+				20,
+			],
+			[
+				'Method Bug10580\FooA::fooThisStatic() should return $this(Bug10580\FooA) but returns Bug10580\FooA.',
+				21,
+			],
+			[
+				'Method Bug10580\FooB::fooThisInterface() should return $this(Bug10580\FooB) but returns Bug10580\FooB.',
+				27,
+			],
+			[
+				'Method Bug10580\FooB::fooThisClass() should return $this(Bug10580\FooB) but returns Bug10580\FooB.',
+				29,
+			],
+			[
+				'Method Bug10580\FooB::fooThisSelf() should return $this(Bug10580\FooB) but returns Bug10580\FooB.',
+				31,
+			],
+			[
+				'Method Bug10580\FooB::fooThisStatic() should return $this(Bug10580\FooB) but returns Bug10580\FooB.',
+				33,
+			],
+			[
+				'Method Bug10580\FooB::fooThis() should return $this(Bug10580\FooB) but returns Bug10580\FooB.',
+				35,
+			],
+		]);
+	}
+
 }

tests/PHPStan/Rules/Methods/data/bug-10580.php

@@ -0,0 +1,36 @@
+<?php // lint >= 8.0
+
+namespace Bug10580;
+
+interface FooI {
+	/** @return $this */
+	public function fooThisInterface(): FooI;
+	/** @return $this */
+	public function fooThisClass(): FooI;
+	/** @return $this */
+	public function fooThisSelf(): self;
+	/** @return $this */
+	public function fooThisStatic(): static;
+}
+
+final class FooA implements FooI
+{
+	public function fooThisInterface(): FooI { return new FooA(); }
+	public function fooThisClass(): FooA { return new FooA(); }
+	public function fooThisSelf(): self { return new FooA(); }
+	public function fooThisStatic(): static { return new FooA(); }
+}
+
+final class FooB implements FooI
+{
+	/** @return $this */
+	public function fooThisInterface(): FooI { return new FooB(); }
+	/** @return $this */
+	public function fooThisClass(): FooB { return new FooB(); }
+	/** @return $this */
+	public function fooThisSelf(): self { return new FooB(); }
+	/** @return $this */
+	public function fooThisStatic(): static { return new FooB(); }
+	/** @return $this */
+	public function fooThis(): static { return new FooB(); }
+}

tests/PHPStan/Rules/PhpDoc/MethodConditionalReturnTypeRuleTest.php

@@ -95,4 +95,9 @@ public function testBug7310(): void
 		$this->analyse([__DIR__ . '/data/bug-7310.php'], []);
 	}
 
+	public function testBug11939(): void
+	{
+		$this->analyse([__DIR__ . '/data/bug-11939.php'], []);
+	}
+
 }

tests/PHPStan/Rules/PhpDoc/data/bug-11939.php

@@ -0,0 +1,36 @@
+<?php // lint >= 8.1
+
+declare(strict_types=1);
+
+namespace Bug11939;
+
+enum What
+{
+	case This;
+	case That;
+
+	/**
+	 * @return ($this is self::This ? 'here' : 'there')
+	 */
+	public function where(): string
+	{
+		return match ($this) {
+			self::This => 'here',
+			self::That => 'there'
+		};
+	}
+}
+
+class Where
+{
+	/**
+	 * @return ($what is What::This ? 'here' : 'there')
+	 */
+	public function __invoke(What $what): string
+	{
+		return match ($what) {
+			What::This => 'here',
+			What::That => 'there'
+		};
+	}
+}

tests/PHPStan/Rules/Pure/PureMethodRuleTest.php

@@ -194,4 +194,10 @@ public function dataBug11207(): array
 		];
 	}
 
+	public function testBug12048(): void
+	{
+		$this->treatPhpDocTypesAsCertain = true;
+		$this->analyse([__DIR__ . '/data/bug-12048.php'], []);
+	}
+
 }

tests/PHPStan/Rules/Pure/data/bug-12048.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Bug12048;
+
+class HelloWorld
+{
+	/** @phpstan-pure */
+	public function sayHello(string $s): string
+	{
+		$a = md5( $s );
+		$a .= hash( 'md5', $s );
+		$a .= hash_hmac( 'sha1', $s, 'b' );
+
+		$a .= hash( 'sha256', $s );
+		$a .= hash_hmac( 'sha256', $s, 'b' );
+
+		return $a;
+	}
+}