Storm\Drivers\Fluent\Object\Functional\Implementation\PHPParser\Visitors\ConstantValueNodeReplacerVisitor::GetConstantValue PHP Method

    private function GetConstantValue(\PHPParser_Node $Node, &$IsConstant)
    {
        switch (true) {
            case $Node instanceof PHPParserConstantValueNode:
                return $Node->Value;
            case $Node instanceof \PHPParser_Node_Scalar_DNumber:
            case $Node instanceof \PHPParser_Node_Scalar_LNumber:
            case $Node instanceof \PHPParser_Node_Scalar_String:
                $Value = $Node->value;
                break;
            case $Node instanceof \PHPParser_Node_Expr_ConstFetch:
                $Value = constant($Node->name);
                break;
            case $Node instanceof \PHPParser_Node_Expr_ClassConstFetch:
                $Value = constant($Node->class . '::' . $Node->name);
                break;
            case $Node instanceof \PHPParser_Node_Expr_StaticPropertyFetch:
                $Name = AST::VerifyNameNode($Node->class);
                $ClassName = (string) $Node->class;
                $Value = $ClassName::${$Node->name};
                break;
            case $Node instanceof \PHPParser_Node_Expr_Array:
                $Value = [];
                foreach ($Node->items as $Key => $Item) {
                    $IsKeyConstant = true;
                    $IsValueConstant = true;
                    $Key = $Item->key === null ? null : $this->GetConstantValue($Item->key, $IsKeyConstant);
                    $ItemValue = $this->GetConstantValue($Item->value, $IsValueConstant);
                    if (!$IsKeyConstant || !$IsValueConstant) {
                        $IsConstant = false;
                        return;
                    }
                    $Key !== null ? $Value[$Key] = $ItemValue : ($Value[] = $ItemValue);
                }
                break;
            default:
                $IsConstant = false;
                return;
        }
        $IsConstant = true;
        return $Value;
    }