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#include <Storages/checkAndGetLiteralArgument.h>
#include <Core/Field.h>
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
}
template <typename T>
T checkAndGetLiteralArgument(const ASTPtr & arg, const String & arg_name)
{
if (arg && arg->as<ASTLiteral>())
return checkAndGetLiteralArgument<T>(*arg->as<ASTLiteral>(), arg_name);
throw Exception(
ErrorCodes::BAD_ARGUMENTS,
"Argument '{}' must be a literal, get {} (value: {})",
arg_name,
arg ? arg->getID() : "NULL",
arg ? arg->formatForErrorMessage() : "NULL");
}
template <typename T>
T checkAndGetLiteralArgument(const ASTLiteral & arg, const String & arg_name)
{
auto requested_type = Field::TypeToEnum<NearestFieldType<std::decay_t<T>>>::value;
auto provided_type = arg.value.getType();
if (requested_type != provided_type)
throw Exception(
ErrorCodes::BAD_ARGUMENTS,
"Argument '{}' must be a literal with type {}, got {}",
arg_name,
fieldTypeToString(requested_type),
fieldTypeToString(provided_type));
return arg.value.safeGet<T>();
}
template String checkAndGetLiteralArgument(const ASTPtr &, const String &);
template UInt64 checkAndGetLiteralArgument(const ASTPtr &, const String &);
template UInt8 checkAndGetLiteralArgument(const ASTPtr &, const String &);
template bool checkAndGetLiteralArgument(const ASTPtr &, const String &);
template String checkAndGetLiteralArgument(const ASTLiteral &, const String &);
template UInt64 checkAndGetLiteralArgument(const ASTLiteral &, const String &);
}
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