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#pragma once
#include "clickhouse_config.h"
#if USE_CAPNP
#include <Formats/FormatSchemaInfo.h>
#include <Formats/FormatSettings.h>
#include <Core/Block.h>
#error #include <capnp/schema-parser.h>
#error #include <capnp/dynamic.h>
namespace DB
{
// Wrapper for classes that could throw in destructor
// https://github.com/capnproto/capnproto/issues/553
template <typename T>
struct DestructorCatcher
{
T impl;
template <typename ... Arg>
explicit DestructorCatcher(Arg && ... args) : impl(kj::fwd<Arg>(args)...) {}
~DestructorCatcher() noexcept try { } catch (...) { return; }
};
class CapnProtoSchemaParser : public DestructorCatcher<capnp::SchemaParser>
{
public:
CapnProtoSchemaParser() = default;
capnp::StructSchema getMessageSchema(const FormatSchemaInfo & schema_info);
};
bool checkIfStructContainsUnnamedUnion(const capnp::StructSchema & struct_schema);
bool checkIfStructIsNamedUnion(const capnp::StructSchema & struct_schema);
/// Get full name of type for better exception messages.
String getCapnProtoFullTypeName(const capnp::Type & type);
NamesAndTypesList capnProtoSchemaToCHSchema(const capnp::StructSchema & schema, bool skip_unsupported_fields);
}
#endif
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