Simplify implementation

Author: ondrejmirtes

src/Parser/TypeParser.php

@@ -521,17 +521,7 @@ private function parseCallableReturnType(TokenIterator $tokens): Ast\Type\TypeNo
 		$startLine = $tokens->currentTokenLine();
 		$startIndex = $tokens->currentTokenIndex();
 		if ($tokens->isCurrentTokenType(Lexer::TOKEN_NULLABLE)) {
-			$type = $this->parseNullable($tokens);
-			if ($tokens->isCurrentTokenType(Lexer::TOKEN_OPEN_SQUARE_BRACKET)) {
-				$type = $this->tryParseArrayOrOffsetAccess($tokens, $this->enrichWithAttributes(
-					$tokens,
-					$type,
-					$startLine,
-					$startIndex
-				));
-			}
-
-			return $type;
+			return $this->parseNullable($tokens);
 
 		} elseif ($tokens->tryConsumeTokenType(Lexer::TOKEN_OPEN_PARENTHESES)) {
 			$type = $this->parse($tokens);

tests/PHPStan/Parser/TypeParserTest.php

@@ -2014,6 +2014,18 @@ public function provideParseData(): array
 				'callable(): Foo::*',
 				new CallableTypeNode(new IdentifierTypeNode('callable'), [], new ConstTypeNode(new ConstFetchNode('Foo', '*'))),
 			],
+			[
+				'?Foo[]',
+				new NullableTypeNode(new ArrayTypeNode(new IdentifierTypeNode('Foo'))),
+			],
+			[
+				'callable(): ?Foo',
+				new CallableTypeNode(new IdentifierTypeNode('callable'), [], new NullableTypeNode(new IdentifierTypeNode('Foo'))),
+			],
+			[
+				'callable(): ?Foo[]',
+				new CallableTypeNode(new IdentifierTypeNode('callable'), [], new NullableTypeNode(new ArrayTypeNode(new IdentifierTypeNode('Foo')))),
+			],
 		];
 	}