Add regression tests for #11545, #10245, #5919, #5477

Closes phpstan/phpstan#11545
Closes phpstan/phpstan#10245
Closes phpstan/phpstan#5919
Closes phpstan/phpstan#5477

Author: phpstan-bot

tests/PHPStan/Rules/Variables/DefinedVariableRuleTest.php

@@ -1277,4 +1277,53 @@ public function testBug11984(): void
 		$this->analyse([__DIR__ . '/data/bug-11984.php'], []);
 	}
 
+	public function testBug11545(): void
+	{
+		$this->cliArgumentsVariablesRegistered = true;
+		$this->polluteScopeWithLoopInitialAssignments = false;
+		$this->checkMaybeUndefinedVariables = true;
+		$this->polluteScopeWithAlwaysIterableForeach = true;
+
+		$this->analyse([__DIR__ . '/data/bug-11545.php'], [
+			[
+				'Variable $result might not be defined.',
+				24,
+			],
+			[
+				'Variable $result might not be defined.',
+				36,
+			],
+		]);
+	}
+
+	public function testBug10245(): void
+	{
+		$this->cliArgumentsVariablesRegistered = true;
+		$this->polluteScopeWithLoopInitialAssignments = false;
+		$this->checkMaybeUndefinedVariables = true;
+		$this->polluteScopeWithAlwaysIterableForeach = true;
+
+		$this->analyse([__DIR__ . '/data/bug-10245.php'], []);
+	}
+
+	public function testBug5919(): void
+	{
+		$this->cliArgumentsVariablesRegistered = true;
+		$this->polluteScopeWithLoopInitialAssignments = false;
+		$this->checkMaybeUndefinedVariables = true;
+		$this->polluteScopeWithAlwaysIterableForeach = true;
+
+		$this->analyse([__DIR__ . '/data/bug-5919.php'], []);
+	}
+
+	public function testBug5477(): void
+	{
+		$this->cliArgumentsVariablesRegistered = true;
+		$this->polluteScopeWithLoopInitialAssignments = false;
+		$this->checkMaybeUndefinedVariables = true;
+		$this->polluteScopeWithAlwaysIterableForeach = true;
+
+		$this->analyse([__DIR__ . '/data/bug-5477.php'], []);
+	}
+
 }

tests/PHPStan/Rules/Variables/data/bug-10245.php

@@ -0,0 +1,36 @@
+<?php declare(strict_types = 1); // lint >= 8.0
+
+namespace Bug10245;
+
+/**
+ * @throws \Exception
+ */
+function produceInt(): int
+{
+	return 1;
+}
+
+function testTryCatchInWhileTrue(): void
+{
+	while (true) {
+		try {
+			$a = produceInt();
+			break;
+		} catch (\Throwable) {}
+	}
+
+	echo $a;
+}
+
+function testIfBreakInWhileTrue(int $max): void
+{
+	$i = 0;
+	while (true) {
+		if ($i > $max) {
+			$result = 'done';
+			break;
+		}
+		++$i;
+	}
+	print $result;
+}

tests/PHPStan/Rules/Variables/data/bug-11545.php

@@ -0,0 +1,45 @@
+<?php declare(strict_types = 1);
+
+namespace Bug11545;
+
+function foo(int $max): void {
+	$i = 0;
+	while (true) {
+		if ($i > $max) {
+			$result = 'done';
+			break;
+		}
+		++$i;
+	}
+	print $result;
+}
+
+function foo_for(int $max): void {
+	for ($i = 0;; ++$i) {
+		if ($i > $max) {
+			$result = 'done';
+			break;
+		}
+	}
+	print $result;
+}
+
+function foo_do_while(int $max): void {
+	$i = 0;
+	do {
+		if ($i > $max) {
+			$result = 'done';
+			break;
+		}
+		++$i;
+	} while (true);
+	print $result;
+}
+
+function bar(int $max): void {
+	while (true) {
+		$result = 'done';
+		break;
+	}
+	print $result;
+}

tests/PHPStan/Rules/Variables/data/bug-5477.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types = 1);
+
+namespace Bug5477;
+
+function foo(): int {
+	while (true) {
+		try {
+			$transaction = 1;
+			break;
+		} catch (\Throwable $e) {
+			continue;
+		}
+	}
+
+	return $transaction;
+}

tests/PHPStan/Rules/Variables/data/bug-5919.php

@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Bug5919;
+
+/**
+ * @return mixed[]
+ */
+function queryApi(): array
+{
+	return [5];
+}
+
+function isTimeout(): bool
+{
+	return true;
+}
+
+function testSimple(): void
+{
+	while (true) {
+		try {
+			$s = queryApi();
+			break;
+		} catch (\Exception $e) {
+			if (false) {
+				throw $e;
+			}
+		}
+	}
+
+	var_dump(count($s));
+}
+
+function testWithIsTimeout(): void
+{
+	while (true) {
+		try {
+			$s = queryApi();
+			break;
+		} catch (\Exception $e) {
+			if (isTimeout()) {
+				throw $e;
+			}
+		}
+	}
+
+	var_dump(count($s));
+}