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Do not throw for Marshal.SizeOf(typeof(delegate*<void>)) #113603

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Merged
merged 1 commit into from
Mar 18, 2025
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Do not throw for Marshal.SizeOf(typeof(delegate*<void>)) #113603

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2 changes: 1 addition & 1 deletion .../nativeaot/System.Private.CoreLib/src/System/Runtime/InteropServices/Marshal.NativeAot.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ internal static int SizeOfHelper(RuntimeType t, bool throwIfNotMarshalable)
{
Debug.Assert(throwIfNotMarshalable);

if (t.IsPointer /* or IsFunctionPointer */)
if (t.IsPointer || t.IsFunctionPointer)
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Copilot AI Mar 17, 2025

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Consider removing the outdated comment fragment 'or IsFunctionPointer' since the condition now explicitly includes it, which would improve clarity.

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return IntPtr.Size;

if (t.IsByRef || t.IsArray || t.ContainsGenericParameters)
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6 changes: 6 additions & 0 deletions ...m.Runtime.InteropServices.UnitTests/System/Runtime/InteropServices/Marshal/SizeOfTests.cs
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Expand Up @@ -31,6 +31,12 @@ public void SizeOf_Object_ReturnsExpected()
Assert.NotEqual(0, Marshal.SizeOf(typeof(SomeTestStruct)));
}

[Fact]
public unsafe void SizeOf_FunctionPointer_ReturnsExpected()
{
Assert.Equal(IntPtr.Size, Marshal.SizeOf(typeof(delegate*<void>)));
}

[Fact]
public void SizeOf_Pointer_ReturnsExpected()
{
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