sean-m
/
Vanara
mirror of https://github.com/dahall/Vanara.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Added Null field to SafeCoTaskMemStruct<T> and SafeCoTaskMemStruct<T>

pull/211/head
dahall 2020-12-30 20:47:14 -07:00
parent 9212f849c9
commit bf89a972a2
1 changed files with 16 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
Core/InteropServices/SafeMemStruct.cs
View File

@ -87,21 +87,20 @@ namespace Vanara.InteropServices
/// <summary>Determines whether the specified <see cref="System.Object"/>, is equal to this instance.</summary>
/// <param name="obj">The <see cref="System.Object"/> to compare with this instance.</param>
/// <returns><c>true</c> if the specified <see cref="System.Object"/> is equal to this instance; otherwise, <c>false</c>.</returns>
public override bool Equals(object obj) => ReferenceEquals(this, obj)
? true
: (obj switch
{
null => false,
SafeMemStruct<TStruct, TMem> ms => Equals((TStruct?)this, (TStruct?)ms),
TStruct s => Equals(s),
SafeAllocatedMemoryHandle m => m.DangerousGetHandle() == handle,
_ => false,
});
public override bool Equals(object obj) => ReferenceEquals(this, obj) ||
(obj switch
{
null => false,
SafeMemStruct<TStruct, TMem> ms => Equals((TStruct?)this, (TStruct?)ms),
TStruct s => Equals(s),
SafeAllocatedMemoryHandle m => m.DangerousGetHandle() == handle,
_ => false,
});
/// <summary>Indicates whether the current object is equal to another object of the same type.</summary>
/// <param name="other">An object to compare with this object.</param>
/// <returns>true if the current object is equal to the <paramref name="other"/> parameter; otherwise, false.</returns>
public bool Equals(TStruct other) => !HasValue ? false : EqualityComparer<TStruct>.Default.Equals(handle.ToStructure<TStruct>(Size), other);
public bool Equals(TStruct other) => HasValue && EqualityComparer<TStruct>.Default.Equals(handle.ToStructure<TStruct>(Size), other);
/// <summary>Returns a hash code for this instance.</summary>
/// <returns>A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.</returns>
@ -158,6 +157,9 @@ namespace Vanara.InteropServices
[ExcludeFromCodeCoverage]
public SafeCoTaskMemStruct(IntPtr ptr, bool ownsHandle = true, SizeT allocatedBytes = default) : base(ptr, ownsHandle, allocatedBytes) { }
/// <summary>Represents the <see langword="null"/> equivalent of this class instances.</summary>
public static readonly SafeCoTaskMemStruct<TStruct> Null = new SafeCoTaskMemStruct<TStruct>(IntPtr.Zero, false);
/// <summary>Performs an implicit conversion from <see cref="System.Nullable{TStruct}"/> to <see cref="SafeCoTaskMemStruct{TStruct}"/>.</summary>
/// <param name="s">The value of the <typeparamref name="TStruct"/> instance or <see langword="null"/>.</param>
/// <returns>The resulting <see cref="SafeCoTaskMemStruct{TStruct}"/> instance from the conversion.</returns>
@ -187,6 +189,9 @@ namespace Vanara.InteropServices
[ExcludeFromCodeCoverage]
public SafeHGlobalStruct(IntPtr ptr, bool ownsHandle = true, SizeT allocatedBytes = default) : base(ptr, ownsHandle, allocatedBytes) { }
/// <summary>Represents the <see langword="null"/> equivalent of this class instances.</summary>
public static readonly SafeHGlobalStruct<TStruct> Null = new SafeHGlobalStruct<TStruct>(IntPtr.Zero, false);
/// <summary>Performs an implicit conversion from <see cref="System.Nullable{TStruct}"/> to <see cref="SafeHGlobalStruct{TStruct}"/>.</summary>
/// <param name="s">The value of the <typeparamref name="TStruct"/> instance or <see langword="null"/>.</param>
/// <returns>The resulting <see cref="SafeHGlobalStruct{TStruct}"/> instance from the conversion.</returns>