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[RFC] Implement dereferencable for new exprs with constructor args
https://wiki.php.net/rfc/new_without_parentheses Closes GH-13029
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lines changed

‎UPGRADING

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@@ -192,6 +192,10 @@ PHP 8.4 UPGRADE NOTES
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it references, or null if the reference is no longer valid.
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. The output of Closure::__debugInfo() now includes the name, file, and line
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of the Closure.
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. new expressions with constructor arguments are now dereferencable, meaning
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they allow chaining method calls, property accesses, etc. without enclosing
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the expression in parentheses.
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RFC: https://wiki.php.net/rfc/new_without_parentheses
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- Curl:
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. curl_version() returns an additional feature_list value, which is an

‎Zend/tests/new_without_parentheses/anonymous_class_access.phpt

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--TEST--
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Immediate access on new anonymous class
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--FILE--
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<?php
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echo new class {
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const C = 'constant' . PHP_EOL;
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}::C;
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echo new class {
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const C = 'constant' . PHP_EOL;
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}::{'C'};
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echo new class {
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public $property = 'property' . PHP_EOL;
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}->property;
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echo new class {
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public static $property = 'static property' . PHP_EOL;
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}::$property;
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new class {
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public function method() { echo 'method' . PHP_EOL; }
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}->method();
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new class {
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public static function method() { echo 'static method' . PHP_EOL; }
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}::method();
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new class {
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public function __invoke() { echo '__invoke' . PHP_EOL; }
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}();
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new class () implements ArrayAccess {
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public function offsetExists(mixed $offset): bool { return true; }
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public function offsetGet(mixed $offset): mixed { echo 'offsetGet' . PHP_EOL; return null; }
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public function offsetSet(mixed $offset, mixed $value): void {}
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public function offsetUnset(mixed $offset): void {}
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}['key'];
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isset(new class () implements ArrayAccess {
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public function offsetExists(mixed $offset): bool { echo 'offsetExists' . PHP_EOL; return true; }
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public function offsetGet(mixed $offset): mixed { return null; }
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public function offsetSet(mixed $offset, mixed $value): void {}
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public function offsetUnset(mixed $offset): void {}
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}['key']);
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?>
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--EXPECT--
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constant
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constant
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property
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static property
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method
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static method
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__invoke
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offsetGet
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offsetExists

‎Zend/tests/new_without_parentheses/assign_to_new.phpt

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--TEST--
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Cannot assign to new expression
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--FILE--
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<?php
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new ArrayObject() = 1;
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?>
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--EXPECTF--
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Parse error: syntax error, unexpected token "=" in %s on line %d

‎Zend/tests/new_without_parentheses/garbage_collection.phpt

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--TEST--
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Object instantiated without parentheses is collected
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--FILE--
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<?php
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class A
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{
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public function test(): void
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{
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echo 'called' . PHP_EOL;
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}
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public function __destruct()
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{
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echo 'collected' . PHP_EOL;
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}
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}
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new A()->test();
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echo 'code after' . PHP_EOL;
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?>
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--EXPECT--
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called
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collected
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code after

‎Zend/tests/new_without_parentheses/new_class_vs_function_with_same_name.phpt

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--TEST--
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A function and a class with the same name work as expected
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--FILE--
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<?php
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function Something(): string
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{
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return 'Another';
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}
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class Something {}
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class Another {}
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echo Something() . PHP_EOL;
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var_dump(new Something());
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var_dump(new (Something()));
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?>
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--EXPECT--
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Another
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object(Something)#1 (0) {
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}
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object(Another)#1 (0) {
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}

‎Zend/tests/new_without_parentheses/new_with_ctor_arguments_parentheses.phpt

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--TEST--
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Immediate access on new object with constructor arguments' parentheses
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--FILE--
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<?php
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class A implements ArrayAccess
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{
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const C = 'constant' . PHP_EOL;
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public $property = 'property' . PHP_EOL;
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public static $staticProperty = 'static property' . PHP_EOL;
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public function __invoke(): void
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{
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echo '__invoke' . PHP_EOL;
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}
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public function method(): void
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{
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echo 'method' . PHP_EOL;
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}
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public static function staticMethod(): void
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{
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echo 'static method' . PHP_EOL;
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}
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public function offsetExists(mixed $offset): bool
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{
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echo 'offsetExists' . PHP_EOL;
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return true;
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}
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public function offsetGet(mixed $offset): mixed
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{
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echo 'offsetGet' . PHP_EOL;
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return null;
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}
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public function offsetSet(mixed $offset, mixed $value): void {}
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public function offsetUnset(mixed $offset): void {}
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}
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$class = A::class;
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echo new A()::C;
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echo new A()::{'C'};
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echo new $class()::C;
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echo new $class()::{'C'};
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echo new (trim(' A '))()::C;
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echo new (trim(' A '))()::{'C'};
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echo new A()->property;
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echo new $class()->property;
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echo new (trim(' A '))()->property;
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echo new A()::$staticProperty;
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echo new $class()::$staticProperty;
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echo new (trim(' A '))()::$staticProperty;
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new A()();
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new $class()();
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new (trim(' A '))()();
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new A()->method();
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new $class()->method();
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new (trim(' A '))()->method();
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new A()::staticMethod();
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new $class()::staticMethod();
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new (trim(' A '))()::staticMethod();
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new A()['key'];
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new $class()['key'];
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new (trim(' A '))()['key'];
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isset(new A()['key']);
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isset(new $class()['key']);
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isset(new (trim(' A '))()['key']);
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?>
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--EXPECT--
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constant
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constant
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constant
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constant
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constant
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constant
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property
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property
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property
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static property
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static property
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static property
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__invoke
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__invoke
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__invoke
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method
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method
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method
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static method
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static method
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static method
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offsetGet
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offsetGet
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offsetGet
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offsetExists
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offsetExists
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offsetExists

‎Zend/tests/new_without_parentheses/new_without_ctor_arguments_parentheses_array_access.phpt

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--TEST--
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Immediate array access on new object without constructor parentheses
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--FILE--
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<?php
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class A extends ArrayObject
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{
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}
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echo new A['test'];
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?>
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--EXPECTF--
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Parse error: syntax error, unexpected token "[", expecting "," or ";" in %s on line %d

‎Zend/tests/new_without_parentheses/new_without_ctor_arguments_parentheses_constant.phpt

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--TEST--
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Immediate constant access on new object without constructor parentheses
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--FILE--
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<?php
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class A
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{
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const C = 'constant';
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}
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echo new A::C;
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?>
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--EXPECTF--
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Parse error: syntax error, unexpected identifier "C", expecting variable or "$" in %s on line %d

‎Zend/tests/new_without_parentheses/new_without_ctor_arguments_parentheses_method.phpt

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--TEST--
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Immediate method call on new object without constructor parentheses
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--FILE--
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<?php
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class A
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{
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public function test(): void
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{
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echo 'called';
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}
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}
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new A->test();
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?>
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--EXPECTF--
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Parse error: syntax error, unexpected token "->" in %s on line %d

‎Zend/tests/new_without_parentheses/new_without_ctor_arguments_parentheses_property.phpt

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--TEST--
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Immediate property access on new object without constructor parentheses
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--FILE--
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<?php
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class A
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{
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public $prop = 'property';
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}
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echo new A->prop;
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?>
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--EXPECTF--
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Parse error: syntax error, unexpected token "->", expecting "," or ";" in %s on line %d

‎Zend/tests/new_without_parentheses/new_without_ctor_arguments_parentheses_static_method.phpt

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--TEST--
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Immediate static method call on new object without constructor parentheses
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--FILE--
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<?php
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class A
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{
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public static function test(): void
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{
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echo 'called';
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}
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}
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new A::test();
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?>
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--EXPECTF--
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Parse error: syntax error, unexpected identifier "test", expecting variable or "$" in %s on line %d

‎Zend/tests/new_without_parentheses/new_without_ctor_arguments_parentheses_static_property.phpt

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--TEST--
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Immediate static property access on new object without constructor parentheses
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--FILE--
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<?php
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class B
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{
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}
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class A
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{
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public static $prop = B::class;
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}
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var_dump(new A::$prop);
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?>
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--EXPECT--
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object(B)#1 (0) {
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}

‎Zend/tests/new_without_parentheses/unset_new.phpt

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--TEST--
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Cannot unset new expression
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--FILE--
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<?php
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unset(new ArrayObject());
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?>
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--EXPECTF--
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Parse error: syntax error, unexpected token ")", expecting "->" or "?->" or "{" or "[" in %s on line %d

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