[增添]添加了datasource的setting数据库以及默认值

vendor/phpstan/phpdoc-parser/src/Ast/ConstExpr/ConstExprArrayItemNode.php

@@ -0,0 +1,36 @@
+<?php declare(strict_types = 1);
+
+namespace PHPStan\PhpDocParser\Ast\ConstExpr;
+
+use PHPStan\PhpDocParser\Ast\NodeAttributes;
+use function sprintf;
+
+class ConstExprArrayItemNode implements ConstExprNode
+{
+
+	use NodeAttributes;
+
+	/** @var ConstExprNode|null */
+	public $key;
+
+	/** @var ConstExprNode */
+	public $value;
+
+	public function __construct(?ConstExprNode $key, ConstExprNode $value)
+	{
+		$this->key = $key;
+		$this->value = $value;
+	}
+
+
+	public function __toString(): string
+	{
+		if ($this->key !== null) {
+			return sprintf('%s => %s', $this->key, $this->value);
+
+		}
+
+		return (string) $this->value;
+	}
+
+}