Fix phpstan/phpstan#12246: crash on first class callable as conditional do while

src/Node/Printer/Printer.php

@@ -23,7 +23,11 @@
 use PHPStan\Node\Expr\SetOffsetValueTypeExpr;
 use PHPStan\Node\Expr\TypeExpr;
 use PHPStan\Node\Expr\UnsetOffsetExpr;
+use PHPStan\Node\FunctionCallableNode;
+use PHPStan\Node\InstantiationCallableNode;
 use PHPStan\Node\IssetExpr;
+use PHPStan\Node\MethodCallableNode;
+use PHPStan\Node\StaticMethodCallableNode;
 use PHPStan\Type\VerbosityLevel;
 use function sprintf;
 
@@ -134,4 +138,24 @@ protected function pPHPStan_Node_BooleanAndNode(BooleanAndNode $expr): string //
 		return sprintf('__phpstanBooleanAnd(%s, %s)', $this->p($expr->getOriginalNode()->left), $this->p($expr->getOriginalNode()->right));
 	}
 
+	protected function pPHPStan_Node_FunctionCallableNode(FunctionCallableNode $expr): string // phpcs:ignore
+	{
+		return sprintf('__phpstanFunctionCallable(%s)', $this->p($expr->getOriginalNode()));
+	}
+
+	protected function pPHPStan_Node_MethodCallableNode(MethodCallableNode $expr): string // phpcs:ignore
+	{
+		return sprintf('__phpstanMethodCallable(%s)', $this->p($expr->getOriginalNode()));
+	}
+
+	protected function pPHPStan_Node_StaticMethodCallableNode(StaticMethodCallableNode $expr): string // phpcs:ignore
+	{
+		return sprintf('__phpstanStaticMethodCallable(%s)', $this->p($expr->getOriginalNode()));
+	}
+
+	protected function pPHPStan_Node_InstantiationCallableNode(InstantiationCallableNode $expr): string // phpcs:ignore
+	{
+		return sprintf('__phpstanInstantiationCallable(%s)', $this->p($expr->getOriginalNode()));
+	}
+
 }

tests/PHPStan/Analyser/AnalyserIntegrationTest.php

@@ -1656,6 +1656,16 @@ public function testBug13945Two(): void
 		$this->assertNoErrors($errors);
 	}
 
+	public function testBug12246(): void
+	{
+		$errors = $this->runAnalyse(__DIR__ . '/data/bug-12246.php');
+		$this->assertCount(4, $errors);
+		$this->assertSame('Do-while loop condition is always true.', $errors[0]->getMessage());
+		$this->assertSame('Do-while loop condition is always true.', $errors[1]->getMessage());
+		$this->assertSame('Do-while loop condition is always true.', $errors[2]->getMessage());
+		$this->assertSame('Cannot create callable from the new operator.', $errors[3]->getMessage());
+	}
+
 	public function testBigPhpdocArrayShape(): void
 	{
 		$errors = $this->runAnalyse(__DIR__ . '/nsrt/bug-14012b.php');

tests/PHPStan/Analyser/data/bug-12246.php

@@ -0,0 +1,59 @@
+<?php declare(strict_types = 1);
+
+namespace Bug12246;
+
+final class FirstClassCallableInDo
+{
+	public function getSubscribedEvents(): void
+	{
+		do {
+
+		} while ($this->textElement(...));
+	}
+
+	public function textElement(): int
+	{
+		return 1;
+	}
+}
+
+final class StaticFirstClassCallableInDo
+{
+	public function getSubscribedEvents(): void
+	{
+		do {
+
+		} while (self::textElement(...));
+	}
+
+	static public function textElement(): int
+	{
+		return 1;
+	}
+}
+
+final class FunctionFirstClassCallableInDo
+{
+	public function getSubscribedEvents(): void
+	{
+		do {
+
+		} while (doFoo(...));
+	}
+}
+
+function doFoo():int {
+	return 1;
+}
+
+final class InstationFirstClassCallableInDo
+{
+	public function getSubscribedEvents(): void
+	{
+		do {
+
+		} while (new Foo(...));
+	}
+}
+
+class Foo {}