TypeSpecificationHandle.cs

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namespace System.Reflection.Metadata;
 
public readonly struct TypeSpecificationHandle : IEquatable<TypeSpecificationHandle>
{
    private readonly int _rowId;
 
    public bool IsNil => RowId == 0;
 
    internal int RowId => _rowId;
 
    private TypeSpecificationHandle(int rowId)
    {
        _rowId = rowId;
    }
 
    internal static TypeSpecificationHandle FromRowId(int rowId)
    {
        return new TypeSpecificationHandle(rowId);
    }
 
    public static implicit operator Handle(TypeSpecificationHandle handle)
    {
        return new Handle(27, handle._rowId);
    }
 
    public static implicit operator EntityHandle(TypeSpecificationHandle handle)
    {
        return new EntityHandle((uint)(0x1B000000uL | (ulong)handle._rowId));
    }
 
    public static explicit operator TypeSpecificationHandle(Handle handle)
    {
        if (handle.VType != 27)
        {
            Throw.InvalidCast();
        }
        return new TypeSpecificationHandle(handle.RowId);
    }
 
    public static explicit operator TypeSpecificationHandle(EntityHandle handle)
    {
        if (handle.VType != 452984832)
        {
            Throw.InvalidCast();
        }
        return new TypeSpecificationHandle(handle.RowId);
    }
 
    public static bool operator ==(TypeSpecificationHandle left, TypeSpecificationHandle right)
    {
        return left._rowId == right._rowId;
    }
 
    public override bool Equals(object? obj)
    {
        if (obj is TypeSpecificationHandle)
        {
            return ((TypeSpecificationHandle)obj)._rowId == _rowId;
        }
        return false;
    }
 
    public bool Equals(TypeSpecificationHandle other)
    {
        return _rowId == other._rowId;
    }
 
    public override int GetHashCode()
    {
        return _rowId.GetHashCode();
    }
 
    public static bool operator !=(TypeSpecificationHandle left, TypeSpecificationHandle right)
    {
        return left._rowId != right._rowId;
    }
}