using System; namespace Ryujinx.Horizon.Common { public struct Result : IEquatable<Result> { private const int ModuleBits = 9; private const int DescriptionBits = 13; private const int ModuleMax = 1 << ModuleBits; private const int DescriptionMax = 1 << DescriptionBits; public static Result Success { get; } = new Result(0, 0); public int ErrorCode { get; } public bool IsSuccess => ErrorCode == 0; public bool IsFailure => ErrorCode != 0; public int Module => ErrorCode & (ModuleMax - 1); public int Description => (ErrorCode >> ModuleBits) & (DescriptionMax - 1); public string PrintableResult => $"{2000 + Module:D4}-{Description:D4}"; public Result(int module, int description) { if ((uint)module >= ModuleMax) { throw new ArgumentOutOfRangeException(nameof(module)); } if ((uint)description >= DescriptionMax) { throw new ArgumentOutOfRangeException(nameof(description)); } ErrorCode = module | (description << ModuleBits); } public override bool Equals(object obj) { return obj is Result result && result.Equals(this); } public bool Equals(Result other) { return other.ErrorCode == ErrorCode; } public override int GetHashCode() { return ErrorCode; } public static bool operator ==(Result lhs, Result rhs) { return lhs.Equals(rhs); } public static bool operator !=(Result lhs, Result rhs) { return !lhs.Equals(rhs); } public bool InRange(int minInclusive, int maxInclusive) { return (uint)(Description - minInclusive) <= (uint)(maxInclusive - minInclusive); } public void AbortOnSuccess() { if (IsSuccess) { ThrowInvalidResult(); } } public void AbortOnFailure() { if (this == KernelResult.ThreadTerminating) { throw new ThreadTerminatedException(); } AbortUnless(Success); } public void AbortUnless(Result result) { if (this != result) { ThrowInvalidResult(); } } public void AbortUnless(Result result, Result result2) { if (this != result && this != result2) { ThrowInvalidResult(); } } private void ThrowInvalidResult() { throw new InvalidResultException(this); } public override string ToString() { if (ResultNames.TryGet(ErrorCode, out string name)) { return name; } return PrintableResult; } } }