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Added FromNullable static creator

pull/60/head
David Hall 2019-05-08 09:24:39 -06:00
parent 15f05e2924
commit 51c888f4da
1 changed files with 8 additions and 1 deletions
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9
Core/InteropServices/PinnedObject.cs
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@ -21,6 +21,13 @@ namespace Vanara.InteropServices
SetObject(obj);
}
/// <summary>Creates a pinned object from a nullable structure.</summary>
/// <typeparam name="T">The type of the structure.</typeparam>
/// <param name="obj">The value to pin.</param>
/// <param name="offset">The offset into the pinned bytes used to return a pointer.</param>
/// <returns>A new instance of <see cref="PinnedObject"/>.</returns>
public static PinnedObject FromNullable<T>(T? obj, int offset = 0) where T : struct => obj.HasValue ? new PinnedObject(obj.Value, offset) : new PinnedObject(null, offset);
/// <summary>Initializes a new instance of the <see cref="PinnedObject"/> class.</summary>
[ExcludeFromCodeCoverage]
protected PinnedObject() { }
@ -32,7 +39,7 @@ namespace Vanara.InteropServices
/// <summary>Get a pointer ( <see cref="IntPtr"/>) to the pinned memory of the object with any preset offset.</summary>
/// <param name="ap">The <see cref="PinnedObject"/> instance.</param>
/// <returns>The result of the conversion.</returns>
public static implicit operator IntPtr(PinnedObject ap) => ap.pinnedArray.IsAllocated ? ap.pinnedArray.AddrOfPinnedObject().Offset(ap.mOffset) : IntPtr.Zero;
public static implicit operator IntPtr(PinnedObject ap) => !ap.IsInvalid ? ap.pinnedArray.AddrOfPinnedObject().Offset(ap.mOffset) : IntPtr.Zero;
/// <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
public void Dispose()