/// <summary>
/// Gets the current code for a <c>try</c> block.
/// </summary>
/// <param name="block">The <c>try</c> block.</param>
/// <returns>An <see cref="Instruction"/> value.</returns>
private Instruction GetTryPosition(TryBlock block)
{
var before = Insert == CodeInsertion.Before;
var position = Position ?? (before ? GetFirst() : GetLast());
if (block == null || block.TryEnd == null)
{
return(before ? (position.Previous ?? position) : (position.Next ?? position));
}
return(before ? position : (position.Previous ?? position));
}
/// <summary>
/// Starts a <c>try</c> block.
/// </summary>
/// <returns>A <see cref="TryBlock"/> value.</returns>
public TryBlock Try()
{
var position = Codes.Nop;
Emit(position);
var block = new TryBlock {
State = 0, TryStart = position
};
tryBlocks.Enqueue(block);
return(block);
}