LordKalma (CT7ALW) Posts - Answer Overflow

LordKalma (CT7ALW)

•Created by LordKalma (CT7ALW) on 12/6/2023 in #help

Smart enums, inheritance and "siblings" behaving weirdly and I don't understand why.

So, I'm using Ardalis.SmartEnum to create some smart enums with data members. I found myself having a lot of boilerplate, so I came up with the following code:

using Ardalis.SmartEnum;

namespace AetherLogger.Models;

public interface IModeInterface : ISmartEnum
{
    string ReadableName { get; }
}

public abstract class ModeBase<TEnum> : SmartEnum<TEnum, int>, IModeInterface where TEnum : SmartEnum<TEnum, int>
{
    protected ModeBase(string name, string? readableName = null) : base(name, ++_counter)
    {
        ReadableName = readableName ?? name;
    }

    private static int _counter;
    public string ReadableName { get; }
}

public sealed class Mode : ModeBase<Mode>
{
    public static readonly Mode CHIP = new(nameof(CHIP), ChipSubMode.List);
    public static readonly Mode CW = new(nameof(CW), "Morse (CW)", CwSubMode.List);

    public IEnumerable<IModeInterface>? Submodes { get; }

    private Mode(string name, string? readableName = null, IEnumerable<IModeInterface>? submodes = null) : base(name, readableName)
    {
        Submodes = submodes;
    }

    public Mode(string name, IEnumerable<IModeInterface> submodes) : this(name, name, submodes)
    {
    }
}


public sealed class ChipSubMode(string name, string? readableName = null) : ModeBase<ChipSubMode>(name, readableName)
{
    public static readonly ChipSubMode CHIP64 = new(nameof(CHIP64), "CHIP 64");
    public static readonly ChipSubMode CHIP128 = new(nameof(CHIP128), "CHIP 128");
}

public sealed class CwSubMode(string name, string? readableName = null) : ModeBase<CwSubMode>(name, readableName)
{
    public static readonly CwSubMode PCW = new(nameof(PCW), "Precision CW");
}

using Ardalis.SmartEnum;

namespace AetherLogger.Models;

public interface IModeInterface : ISmartEnum
{
    string ReadableName { get; }
}

public abstract class ModeBase<TEnum> : SmartEnum<TEnum, int>, IModeInterface where TEnum : SmartEnum<TEnum, int>
{
    protected ModeBase(string name, string? readableName = null) : base(name, ++_counter)
    {
        ReadableName = readableName ?? name;
    }

    private static int _counter;
    public string ReadableName { get; }
}

public sealed class Mode : ModeBase<Mode>
{
    public static readonly Mode CHIP = new(nameof(CHIP), ChipSubMode.List);
    public static readonly Mode CW = new(nameof(CW), "Morse (CW)", CwSubMode.List);

    public IEnumerable<IModeInterface>? Submodes { get; }

    private Mode(string name, string? readableName = null, IEnumerable<IModeInterface>? submodes = null) : base(name, readableName)
    {
        Submodes = submodes;
    }

    public Mode(string name, IEnumerable<IModeInterface> submodes) : this(name, name, submodes)
    {
    }
}


public sealed class ChipSubMode(string name, string? readableName = null) : ModeBase<ChipSubMode>(name, readableName)
{
    public static readonly ChipSubMode CHIP64 = new(nameof(CHIP64), "CHIP 64");
    public static readonly ChipSubMode CHIP128 = new(nameof(CHIP128), "CHIP 128");
}

public sealed class CwSubMode(string name, string? readableName = null) : ModeBase<CwSubMode>(name, readableName)
{
    public static readonly CwSubMode PCW = new(nameof(PCW), "Precision CW");
}

This code works. However, note ModeBase<TEnum> : SmartEnum<TEnum, int>. What I found is that this code doesn't work if I don't template ModelBase and I don't know why. [continues in the comments]

19 replies

CC#

•Created by LordKalma (CT7ALW) on 4/29/2023 in #help

❔ Capturing value-types by value (i.e., making a copy) in λs. Or rather, using a Span<T> in a λ.

I have some code using a Span<T>. I wanted to use some LINQ with it (e.g. the Enumerable.Range.Select method), but whenever I try to use the Span<T> object inside a lambda, I get the error CS8175:

Error CS8175 Cannot use ref local <mySpanVariable> inside an anonymous method, lambda expression, or query expression.

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/compiler-messages/cs8175 How can I work around this?

11 replies

CC#

•Created by LordKalma (CT7ALW) on 4/17/2023 in #help

❔ Specializing a Generic?

If I make a MyClass<T>, can I make a, for example, couple specializations like MyClass<int> and MyClass<double> implementing some specific behaviour?

56 replies

CC#

•Created by LordKalma (CT7ALW) on 3/7/2023 in #help

❔ App.config: "special one" for testing/debugging

Hello, I'm making a small console application that needs some configuration (an API key, and a list of "filters"). I thought of saving that kind of configuration in an App.config file. Question is: how can I just have a "template" file for VCS storage, and have a "local" one filled with my secrets for testing/debugging?

18 replies

CC#

•Created by LordKalma (CT7ALW) on 12/29/2022 in #help

❔ Deserialize serial data to struct (port from C)

Hello, I'm not sure how you do this in C#: I have this code I'm porting to C#. It's basically a stream from a serial port that needs to be de-serialized into a struct. This is the C code for the struct:

#define AETHER_X6100CTRL_BB_FRAME_IQ_SAMPLES_COUNT 512
#define AETHER_X6100CTRL_BB_FRAME_MAGIC 0xAA5555AA

typedef struct
{
    bool resync : 1;
    bool tx : 1;
    bool chg : 1;
    bool vext : 1;
    uint32_t reserved : 28;
} aether_x6100ctrl_bb_frame_flags_t;

typedef struct AETHER_X6100CTRL_PACKED
{
    uint32_t magic; /*!< Every frame starts with AETHER_X6100CTRL_BB_FRAME_MAGIC */
    aether_x6100ctrl_fcomplex_t bb_iq_samples[AETHER_X6100CTRL_BB_FRAME_IQ_SAMPLES_COUNT];
    aether_x6100ctrl_bb_frame_flags_t flags;
    uint8_t reserved_1;
    uint8_t tx_power;
    uint8_t vswr;
    uint8_t alc_level;
    uint8_t vext;
    uint8_t vbat;
    uint8_t batcap;
    uint8_t reserved_2;
    uint32_t atu_params;
    uint32_t reserved_3;
    uint32_t reserved_4;
    uint32_t reserved_5;
    uint32_t reserved_6;
    uint32_t crc;
} aether_x6100ctrl_bb_frame_t;

#define AETHER_X6100CTRL_BB_FRAME_IQ_SAMPLES_COUNT 512
#define AETHER_X6100CTRL_BB_FRAME_MAGIC 0xAA5555AA

typedef struct
{
    bool resync : 1;
    bool tx : 1;
    bool chg : 1;
    bool vext : 1;
    uint32_t reserved : 28;
} aether_x6100ctrl_bb_frame_flags_t;

typedef struct AETHER_X6100CTRL_PACKED
{
    uint32_t magic; /*!< Every frame starts with AETHER_X6100CTRL_BB_FRAME_MAGIC */
    aether_x6100ctrl_fcomplex_t bb_iq_samples[AETHER_X6100CTRL_BB_FRAME_IQ_SAMPLES_COUNT];
    aether_x6100ctrl_bb_frame_flags_t flags;
    uint8_t reserved_1;
    uint8_t tx_power;
    uint8_t vswr;
    uint8_t alc_level;
    uint8_t vext;
    uint8_t vbat;
    uint8_t batcap;
    uint8_t reserved_2;
    uint32_t atu_params;
    uint32_t reserved_3;
    uint32_t reserved_4;
    uint32_t reserved_5;
    uint32_t reserved_6;
    uint32_t crc;
} aether_x6100ctrl_bb_frame_t;

You can explore the code better if you want on this header file and this C file. This is a bit of an on-going work that's a bit rough. Since I want to move to C# and all the code is doing is writing and reading to serial, I thought I could just do away with the base C(++) library. What tools in C# do you use to define and de-serialize a struct like this? Thanks

7 replies

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