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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Runtime.CompilerServices;
namespace System.Runtime.InteropServices.JavaScript
{
public partial struct JSMarshalerArgument
{
/// <summary>
/// Implementation of the argument marshaling.
/// It's used by JSImport code generator and should not be used by developers in source code.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public unsafe void ToManaged(out JSObject? value)
{
if (slot.Type == MarshalerType.None)
{
value = null;
return;
}
value = JSHostImplementation.CreateCSOwnedProxy(slot.JSHandle);
}
/// <summary>
/// Implementation of the argument marshaling.
/// It's used by JSImport code generator and should not be used by developers in source code.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void ToJS(JSObject? value)
{
if (value == null)
{
slot.Type = MarshalerType.None;
}
else
{
if (value.IsDisposed)
{
throw new ObjectDisposedException(nameof(value));
}
slot.Type = MarshalerType.JSObject;
slot.JSHandle = value.JSHandle;
if (slot.JSHandle == IntPtr.Zero) throw new ObjectDisposedException(nameof(value));
}
}
/// <summary>
/// Implementation of the argument marshaling.
/// It's used by JSImport code generator and should not be used by developers in source code.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public unsafe void ToManaged(out JSObject?[]? value)
{
if (slot.Type == MarshalerType.None)
{
value = null;
return;
}
value = new JSObject?[slot.Length];
JSMarshalerArgument* payload = (JSMarshalerArgument*)slot.IntPtrValue;
for (int i = 0; i < slot.Length; i++)
{
ref JSMarshalerArgument arg = ref payload[i];
JSObject? val;
arg.ToManaged(out val);
value[i] = val;
}
Marshal.FreeHGlobal(slot.IntPtrValue);
}
/// <summary>
/// Implementation of the argument marshaling.
/// It's used by JSImport code generator and should not be used by developers in source code.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public unsafe void ToJS(JSObject?[] value)
{
if (value == null)
{
slot.Type = MarshalerType.None;
return;
}
slot.Length = value.Length;
int bytes = value.Length * Marshal.SizeOf(typeof(JSMarshalerArgument));
slot.Type = MarshalerType.Array;
slot.ElementType = MarshalerType.JSObject;
JSMarshalerArgument* payload = (JSMarshalerArgument*)Marshal.AllocHGlobal(bytes);
Unsafe.InitBlock(payload, 0, (uint)bytes);
for (int i = 0; i < slot.Length; i++)
{
ref JSMarshalerArgument arg = ref payload[i];
JSObject? val = value[i];
arg.ToJS(val);
value[i] = val;
}
slot.IntPtrValue = (IntPtr)payload;
}
}
}
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