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--TEST--
'??=' operator in PHP 7.4
--SKIPIF--
<?php if (PHP_VERSION_ID < 70400) die('skip PHP >= 7.4 only'); ?>
--FILE--
<?php
require __DIR__ . '/../util.php';
$code = <<<'PHP'
<?php
$x ??= 2;
Foo::$prop['offset'] ??= $other ??= 'value';
PHP;
$node = ast\parse_code($code, $version=70);
echo ast_dump($node), "\n";
?>
--EXPECTF--
AST_STMT_LIST
0: AST_ASSIGN_OP
flags: BINARY_COALESCE (%d)
var: AST_VAR
name: "x"
expr: 2
1: AST_ASSIGN_OP
flags: BINARY_COALESCE (%d)
var: AST_DIM
expr: AST_STATIC_PROP
class: AST_NAME
flags: NAME_NOT_FQ (%d)
name: "Foo"
prop: "prop"
dim: "offset"
expr: AST_ASSIGN_OP
flags: BINARY_COALESCE (%d)
var: AST_VAR
name: "other"
expr: "value"
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