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#pragma once
#include <type_traits>
#include <typeinfo>
#include <typeindex>
#include <string>
#include <Common/Exception.h>
#include <base/demangle.h>
namespace DB
{
namespace ErrorCodes
{
extern const int LOGICAL_ERROR;
}
}
/** Perform static_cast in release build.
* Checks type by comparing typeid and throw an exception in debug build.
* The exact match of the type is checked. That is, cast to the ancestor will be unsuccessful.
*/
template <typename To, typename From>
inline To assert_cast(From && from)
{
#ifndef NDEBUG
try
{
if constexpr (std::is_pointer_v<To>)
{
if (typeid(*from) == typeid(std::remove_pointer_t<To>))
return static_cast<To>(from);
}
else
{
if (typeid(from) == typeid(To))
return static_cast<To>(from);
}
}
catch (const std::exception & e)
{
throw DB::Exception::createDeprecated(e.what(), DB::ErrorCodes::LOGICAL_ERROR);
}
throw DB::Exception(DB::ErrorCodes::LOGICAL_ERROR, "Bad cast from type {} to {}",
demangle(typeid(from).name()), demangle(typeid(To).name()));
#else
return static_cast<To>(from);
#endif
}
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