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DAP013 - Tuple-type results are not currently supported - despite BindTupleByNameAttribute #137

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@TSlivede

Description

@TSlivede

Describe the bug

I am using [BindTupleByName] and use QuerySingleAsync to retern a tuple type. In the Error List I get the Message DAP013 - "Tuple-type results are not currently supported".

Where are you seeing this?

  • what Dapper/Dapper.StrongName version?
    <PackageReference Include="Dapper" Version="2.1.35" />
  • what Dapper.AOT/Dapper.Advisor version?
    <PackageReference Include="Dapper.AOT" Version="1.0.31" />
  • if relevant: what database backend?
    Microsoft Sql Server, <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.2" />

To Reproduce

[BindTupleByName]
public async Task<(int a, int b)> MyMethod(SqlConnection connection)
{
    return await connection.QuerySingleAsync<(int a, int b)>("select 1 as a, 2 as b");
}

Expected behavior
As BindTupleByNameAttribute is specific to Dapper.AOT, I would have expected, that Dapper.AOT can return tuples...

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grafik

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