type aliases: detect unsupported targets of type alias imports on parsing level

Author: jiripudil

src/Parser/PhpDocParser.php

@@ -403,16 +403,16 @@ private function parseTypeAliasImportTagValue(TokenIterator $tokens): Ast\PhpDoc
 			);
 		}
 
-		$importedFrom = $this->typeParser->parse($tokens);
-		assert($importedFrom instanceof IdentifierTypeNode);
+		$importedFrom = $tokens->currentTokenValue();
+		$tokens->consumeTokenType(Lexer::TOKEN_IDENTIFIER);
 
 		$importedAs = null;
 		if ($tokens->tryConsumeTokenValue('as')) {
 			$importedAs = $tokens->currentTokenValue();
 			$tokens->consumeTokenType(Lexer::TOKEN_IDENTIFIER);
 		}
 
-		return new Ast\PhpDoc\TypeAliasImportTagValueNode($importedAlias, $importedFrom, $importedAs);
+		return new Ast\PhpDoc\TypeAliasImportTagValueNode($importedAlias, new IdentifierTypeNode($importedFrom), $importedAs);
 	}
 
 	private function parseOptionalVariableName(TokenIterator $tokens): string

tests/PHPStan/Parser/PhpDocParserTest.php

@@ -2988,6 +2988,44 @@ public function provideTypeAliasImportTagsData(): \Iterator
 			]),
 		];
 
+		yield [
+			'invalid non-identifier from',
+			'/** @phpstan-import-type TypeAlias from 42 */',
+			new PhpDocNode([
+				new PhpDocTagNode(
+					'@phpstan-import-type',
+					new InvalidTagValueNode(
+						'TypeAlias from 42',
+						new \PHPStan\PhpDocParser\Parser\ParserException(
+							'42',
+							Lexer::TOKEN_INTEGER,
+							40,
+							Lexer::TOKEN_IDENTIFIER
+						)
+					)
+				),
+			]),
+		];
+
+		yield [
+			'invalid non-simple-identifier from',
+			'/** @phpstan-import-type TypeAlias from AnotherClass[] */',
+			new PhpDocNode([
+				new PhpDocTagNode(
+					'@phpstan-import-type',
+					new InvalidTagValueNode(
+						'Unexpected token "[", expected \'*/\' at offset 52',
+						new \PHPStan\PhpDocParser\Parser\ParserException(
+							'[',
+							Lexer::TOKEN_OPEN_SQUARE_BRACKET,
+							52,
+							Lexer::TOKEN_CLOSE_PHPDOC
+						)
+					)
+				),
+			]),
+		];
+
 		yield [
 			'invalid missing from',
 			'/** @phpstan-import-type TypeAlias */',