-
Notifications
You must be signed in to change notification settings - Fork 7.7k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
RFC: https://wiki.php.net/rfc/nullsafe_operator Closes GH-5619. Co-authored-by: Nikita Popov <nikita.ppv@gmail.com>
- Loading branch information
Showing
56 changed files
with
1,810 additions
and
517 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,106 @@ | ||
--TEST-- | ||
Test basic nullsafe method calls | ||
--FILE-- | ||
<?php | ||
|
||
class Foo { | ||
function null() { | ||
var_dump('Foo::null()'); | ||
return null; | ||
} | ||
|
||
function self() { | ||
var_dump('Foo::self()'); | ||
return $this; | ||
} | ||
} | ||
|
||
var_dump(null?->bar()); | ||
var_dump(null?->bar(var_dump('Not executed'))); | ||
var_dump(null?->bar()->baz()); | ||
var_dump(null?->bar()->baz(var_dump('Not executed'))); | ||
var_dump(null?->bar()->baz); | ||
var_dump(null?->bar()::$baz); | ||
var_dump(null?->bar()::baz()); | ||
|
||
$foo = new Foo(); | ||
var_dump($foo->null()?->bar()); | ||
var_dump($foo->null()?->bar(var_dump('Not executed'))); | ||
var_dump($foo->null()?->bar()->baz()); | ||
var_dump($foo->null()?->bar()->baz(var_dump('Not executed'))); | ||
var_dump($foo->null()?->bar()->baz); | ||
var_dump($foo->null()?->bar()::$baz); | ||
var_dump($foo->null()?->bar()::baz()); | ||
|
||
$foo = new Foo(); | ||
var_dump($foo?->self(var_dump('Executed'))->null()?->bar()); | ||
var_dump($foo?->self(var_dump('Executed'))->null()?->bar(var_dump('Not executed'))); | ||
var_dump($foo?->self(var_dump('Executed'))->null()?->bar()->baz()); | ||
var_dump($foo?->self(var_dump('Executed'))->null()?->bar()->baz(var_dump('Not executed'))); | ||
var_dump($foo?->self(var_dump('Executed'))->null()?->bar()->baz); | ||
var_dump($foo?->self(var_dump('Executed'))->null()?->bar()::$baz); | ||
var_dump($foo?->self(var_dump('Executed'))->null()?->bar()::baz()); | ||
|
||
var_dump($foo->self(null?->bar())->null()); | ||
try { | ||
var_dump($foo?->self()[null?->bar()]); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
?> | ||
--EXPECT-- | ||
NULL | ||
NULL | ||
NULL | ||
NULL | ||
NULL | ||
NULL | ||
NULL | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::null()" | ||
NULL | ||
string(8) "Executed" | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(8) "Executed" | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(8) "Executed" | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(8) "Executed" | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(8) "Executed" | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(8) "Executed" | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(8) "Executed" | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::self()" | ||
string(11) "Foo::null()" | ||
NULL | ||
string(11) "Foo::self()" | ||
string(38) "Cannot use object of type Foo as array" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,42 @@ | ||
--TEST-- | ||
Test nullsafe strict type check | ||
--FILE-- | ||
<?php | ||
|
||
try { | ||
false?->bar(); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
try { | ||
[]?->bar(); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
try { | ||
(0)?->bar(); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
try { | ||
(0.0)?->bar(); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
try { | ||
''?->bar(); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
?> | ||
--EXPECT-- | ||
string(39) "Call to a member function bar() on bool" | ||
string(40) "Call to a member function bar() on array" | ||
string(38) "Call to a member function bar() on int" | ||
string(40) "Call to a member function bar() on float" | ||
string(41) "Call to a member function bar() on string" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,66 @@ | ||
--TEST-- | ||
Test basic nullsafe property fetching | ||
--FILE-- | ||
<?php | ||
|
||
class Foo { | ||
public $bar = 'bar'; | ||
|
||
function qux() { | ||
return 'qux'; | ||
} | ||
} | ||
|
||
$null = null; | ||
$foo = new Foo(); | ||
|
||
var_dump(null?->bar); | ||
var_dump(null?->baz); | ||
var_dump(null?->qux()); | ||
var_dump(null?->quux()); | ||
|
||
var_dump((new Foo)?->bar); | ||
var_dump((new Foo)?->baz); | ||
var_dump((new Foo)?->qux()); | ||
try { | ||
var_dump((new Foo)?->quux()); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
var_dump("{$null?->foo}"); | ||
var_dump("{$null?->bar}"); | ||
var_dump("{$null?->qux()}"); | ||
var_dump("{$null?->quux()}"); | ||
|
||
var_dump("{$foo?->bar}"); | ||
var_dump("{$foo?->baz}"); | ||
var_dump("{$foo?->qux()}"); | ||
try { | ||
var_dump("{$foo?->quux()}"); | ||
} catch (Throwable $e) { | ||
var_dump($e->getMessage()); | ||
} | ||
|
||
?> | ||
--EXPECTF-- | ||
NULL | ||
NULL | ||
NULL | ||
NULL | ||
string(3) "bar" | ||
|
||
Warning: Undefined property: Foo::$baz in %s.php on line 20 | ||
NULL | ||
string(3) "qux" | ||
string(36) "Call to undefined method Foo::quux()" | ||
string(0) "" | ||
string(0) "" | ||
string(0) "" | ||
string(0) "" | ||
string(3) "bar" | ||
|
||
Warning: Undefined property: Foo::$baz in %s.php on line 34 | ||
string(0) "" | ||
string(3) "qux" | ||
string(36) "Call to undefined method Foo::quux()" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Test nullsafe property assignment | ||
--FILE-- | ||
<?php | ||
|
||
$foo = null; | ||
var_dump($foo?->bar = 'bar'); | ||
|
||
?> | ||
--EXPECTF-- | ||
Fatal error: Can't use nullsafe operator in write context in %s.php on line 4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Test nullsafe property assignment op | ||
--FILE-- | ||
<?php | ||
|
||
$foo = null; | ||
$foo?->bar += 1; | ||
|
||
?> | ||
--EXPECTF-- | ||
Fatal error: Can't use nullsafe operator in write context in %s.php on line 4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Test nullsafe property post increment | ||
--FILE-- | ||
<?php | ||
|
||
$foo = null; | ||
++$foo?->bar; | ||
|
||
?> | ||
--EXPECTF-- | ||
Fatal error: Can't use nullsafe operator in write context in %s.php on line 4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Test nullsafe property pre increment | ||
--FILE-- | ||
<?php | ||
|
||
$foo = null; | ||
var_dump($foo?->bar++); | ||
|
||
?> | ||
--EXPECTF-- | ||
Fatal error: Can't use nullsafe operator in write context in %s.php on line 4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Test nullsafe property coalesce assignment | ||
--FILE-- | ||
<?php | ||
|
||
$foo = null; | ||
var_dump($foo?->bar ??= 'bar'); | ||
|
||
?> | ||
--EXPECTF-- | ||
Fatal error: Can't use nullsafe operator in write context in %s.php on line 4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Test fetch nullsafe property by ref | ||
--FILE-- | ||
<?php | ||
|
||
$foo = null; | ||
$ref = &$foo?->bar | ||
|
||
?> | ||
--EXPECTF-- | ||
Fatal error: Cannot take reference of a nullsafe chain in %s.php on line 4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,11 @@ | ||
--TEST-- | ||
Test fetch nested nullsafe property by ref | ||
--FILE-- | ||
<?php | ||
|
||
$foo = null; | ||
$ref = &$foo?->bar->baz; | ||
|
||
?> | ||
--EXPECTF-- | ||
Fatal error: Cannot take reference of a nullsafe chain in %s.php on line 4 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,54 @@ | ||
--TEST-- | ||
Test isset and empty on nullsafe property | ||
--FILE-- | ||
<?php | ||
|
||
class Foo { | ||
public $bar; | ||
} | ||
|
||
class Bar { | ||
public $baz; | ||
} | ||
$bar = new Bar(); | ||
$bar->baz = 'baz'; | ||
|
||
var_dump(isset($foo?->bar)); | ||
var_dump(empty($foo?->bar)); | ||
|
||
var_dump(isset($foo?->bar->baz)); | ||
var_dump(empty($foo?->bar->baz)); | ||
echo "\n"; | ||
|
||
$foo = null; | ||
var_dump(isset($foo?->bar)); | ||
var_dump(empty($foo?->bar)); | ||
|
||
var_dump(isset($foo?->bar->baz)); | ||
var_dump(empty($foo?->bar->baz)); | ||
echo "\n"; | ||
|
||
$foo = new Foo(); | ||
var_dump(isset($foo?->bar->baz)); | ||
var_dump(empty($foo?->bar->baz)); | ||
|
||
$foo->bar = $bar; | ||
var_dump(isset($foo?->bar->baz)); | ||
var_dump(empty($foo?->bar->baz)); | ||
|
||
?> | ||
--EXPECT-- | ||
bool(false) | ||
bool(true) | ||
bool(false) | ||
bool(true) | ||
|
||
bool(false) | ||
bool(true) | ||
bool(false) | ||
bool(true) | ||
|
||
bool(false) | ||
bool(true) | ||
bool(true) | ||
bool(false) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,18 @@ | ||
--TEST-- | ||
Test nullsafe property on reference | ||
--FILE-- | ||
<?php | ||
|
||
class Foo { | ||
public $bar; | ||
} | ||
|
||
$foo = new Foo(); | ||
$foo->bar = 'bar'; | ||
|
||
$fooRef = &$foo; | ||
var_dump($fooRef?->bar); | ||
|
||
?> | ||
--EXPECT-- | ||
string(3) "bar" |
Oops, something went wrong.