internal MDOperand(MDNode owningNode, LLVMMDOperandRef handle)
{
handle.ValidateNotDefault(nameof(handle));
OperandHandle = handle;
OwningNode = owningNode;
}
internal MDOperand(MDNode owningNode, LLVMMDOperandRef handle)
{
if (handle.Pointer == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(handle));
}
OperandHandle = handle;
OwningNode = owningNode;
}
public IEnumerator <MDOperand> GetEnumerator( )
{
for (uint i = 0; i < Count; ++i)
{
LLVMMDOperandRef handle = NativeMethods.MDNodeGetOperand(OwningNode.MetadataHandle, i);
if (handle.Pointer == IntPtr.Zero)
{
yield break;
}
yield return(MDOperand.FromHandle(OwningNode, handle));
}
}
internal MDOperand GetOperandFor(MDNode owningNode, LLVMMDOperandRef handle)
{
if (owningNode.Context != this)
{
throw new ArgumentException("Cannot get operand for a node from a different context", nameof(owningNode));
}
if (handle.Pointer == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(handle));
}
if (MDOperandCache.TryGetValue(handle, out MDOperand retVal))
{
return(retVal);
}
retVal = new MDOperand(owningNode, handle);
MDOperandCache.Add(handle, retVal);
return(retVal);
}
internal static MDOperand FromHandle(MDNode owningNode, LLVMMDOperandRef handle)
{
return(owningNode.Context.GetOperandFor(owningNode, handle));
}
