Method createCustomDisk

src/Disks/DiskFromAST.cpp:162–174

std::string DiskFromAST::createCustomDisk(const ASTPtr & disk_function_ast, ContextPtr context, bool attach)
{
    if (!isDiskFunction(disk_function_ast))
        throw Exception(ErrorCodes::BAD_ARGUMENTS, "Expected a disk function");

    auto ast = disk_function_ast->clone();

    using FlattenDiskConfigurationVisitor = InDepthNodeVisitor<DiskConfigurationFlattener, false>;
    FlattenDiskConfigurationVisitor::Data data{context, attach};
    FlattenDiskConfigurationVisitor{data}.visit(ast);

    return assert_cast<const ASTLiteral &>(*ast).value.safeGet<String>();
}

void DiskFromAST::ensureDiskIsNotCustom(const std::string & disk_name, ContextPtr context)
{