Prevent internal error in case of unknown constant

ondrejmirtes · ondrejmirtes · commit e964816ea590 · 2020-08-05T09:39:14.000+02:00
diff --git a/src/Analyser/FileAnalyser.php b/src/Analyser/FileAnalyser.php
@@ -15,6 +15,7 @@
 use PHPStan\Rules\NonIgnorableRuleError;
 use PHPStan\Rules\Registry;
 use PHPStan\Rules\TipRuleError;
+use Roave\BetterReflection\NodeCompiler\Exception\UnableToCompileNode;
 use Roave\BetterReflection\Reflector\Exception\IdentifierNotFound;
 use function array_fill_keys;
 use function array_key_exists;
@@ -93,6 +94,9 @@ public function analyseFile(
 						} catch (IdentifierNotFound $e) {
 							$fileErrors[] = new Error(sprintf('Reflection error: %s not found.', $e->getIdentifier()->getName()), $file, $node->getLine(), $e, null, null, 'Learn more at https://phpstan.org/user-guide/discovering-symbols');
 							continue;
+						} catch (UnableToCompileNode $e) {
+							$fileErrors[] = new Error(sprintf('Reflection error: %s', $e->getMessage()), $file, $node->getLine(), $e, null, null, 'Learn more at https://phpstan.org/user-guide/discovering-symbols');
+							continue;
 						}
 
 						foreach ($ruleErrors as $ruleError) {
@@ -174,6 +178,8 @@ public function analyseFile(
 						// pass
 					} catch (IdentifierNotFound $e) {
 						// pass
+					} catch (UnableToCompileNode $e) {
+						// pass
 					}
 				};
 
@@ -233,6 +239,8 @@ public function analyseFile(
 				$fileErrors[] = new Error($e->getMessage(), $file, null, $e, null, null, $e->getTip());
 			} catch (IdentifierNotFound $e) {
 				$fileErrors[] = new Error(sprintf('Reflection error: %s not found.', $e->getIdentifier()->getName()), $file, null, $e, null, null, 'Learn more at https://phpstan.org/user-guide/discovering-symbols');
+			} catch (UnableToCompileNode $e) {
+				$fileErrors[] = new Error(sprintf('Reflection error: %s', $e->getMessage()), $file, null, $e, null, null, 'Learn more at https://phpstan.org/user-guide/discovering-symbols');
 			}
 		} elseif (is_dir($file)) {
 			$fileErrors[] = new Error(sprintf('File %s is a directory.', $file), $file, null, false);
diff --git a/tests/PHPStan/Analyser/AnalyserIntegrationTest.php b/tests/PHPStan/Analyser/AnalyserIntegrationTest.php
@@ -262,6 +262,17 @@ public function testBug3686(): void
 		$this->assertCount(0, $errors);
 	}
 
+	public function testBug3379(): void
+	{
+		if (!self::$useStaticReflectionProvider) {
+			$this->markTestSkipped('Test requires static reflection');
+		}
+		$errors = $this->runAnalyse(__DIR__ . '/data/bug-3379.php');
+		$this->assertCount(2, $errors);
+		$this->assertSame('Constant SOME_UNKNOWN_CONST not found.', $errors[0]->getMessage());
+		$this->assertSame('Reflection error: Could not locate constant "SOME_UNKNOWN_CONST" while evaluating expression in Bug3379\Foo at line 8', $errors[1]->getMessage());
+	}
+
 	/**
 	 * @param string $file
 	 * @return \PHPStan\Analyser\Error[]
diff --git a/tests/PHPStan/Analyser/data/bug-3379.php b/tests/PHPStan/Analyser/data/bug-3379.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Bug3379;
+
+class Foo
+{
+
+	const URL = SOME_UNKNOWN_CONST . '/test';
+
+}
+
+function () {
+	echo Foo::URL;
+};
