/// <summary>
/// Ends the given finally block.
/// </summary>
public Emit <DelegateType> EndFinallyBlock(FinallyBlock forFinally)
{
if (forFinally == null)
{
throw new ArgumentNullException("forFinally");
}
if (((IOwned)forFinally).Owner != this)
{
FailOwnership(forFinally);
}
var finallyBlock = FinallyBlocks[forFinally];
if (finallyBlock.Item2 != -1)
{
throw new InvalidOperationException("EndFinallyBlock expects an unclosed finally block, but " + forFinally + " is already closed");
}
if (MustMark)
{
MarkLabel(DefineLabel(AutoNamer.Next(this, "__autolabel")));
}
UpdateState(Wrap(new[] { new StackTransition(0) }, "EndFinallyBlock"));
IL.EndFinallyBlock();
FinallyBlocks[forFinally] = SigilTuple.Create(finallyBlock.Item1, IL.Index);
return(this);
}
/// <summary>
/// Begins a finally block on the given exception block.
///
/// Only one finally block can be defined per exception block, and the block cannot appear within a catch block.
///
/// The given exception block must still be open.
/// </summary>
public FinallyBlock BeginFinallyBlock(ExceptionBlock forTry)
{
if (forTry == null)
{
throw new ArgumentNullException("forTry");
}
if (((IOwned)forTry).Owner != this)
{
FailOwnership(forTry);
}
var tryBlock = TryBlocks[forTry];
if (tryBlock.Item2 != -1)
{
throw new InvalidOperationException("BeginFinallyBlock expects an unclosed exception block, but " + forTry + " is already closed");
}
if (CurrentExceptionBlock.Count > 0 && forTry != CurrentExceptionBlock.Peek())
{
throw new InvalidOperationException("Cannot begin FinallyBlock on " + forTry + " while inner ExceptionBlock " + CurrentExceptionBlock.Peek() + " is still open");
}
if (FinallyBlocks.Any(kv => kv.Key.ExceptionBlock == forTry))
{
throw new InvalidOperationException("There can only be one finally block per ExceptionBlock, and one is already defined for " + forTry);
}
if (MustMark)
{
MarkLabel(DefineLabel(AutoNamer.Next(this, "__autolabel")));
}
UpdateState(Wrap(new[] { new StackTransition(0) }, "BeginFinallyBlock"));
var ret = new FinallyBlock(forTry);
IL.BeginFinallyBlock();
FinallyBlocks[ret] = SigilTuple.Create(IL.Index, -1);
return(ret);
}
/// <summary cref="M:Sigil.Emit`1.EndFinallyBlock(Sigil.FinallyBlock)" />
public EmitShorthand <DelegateType> EndFinallyBlock(FinallyBlock forFinally)
{
InnerEmit.EndFinallyBlock(forFinally);
return(this);
}
/// <summary cref="M:Sigil.Emit`1.BeginFinallyBlock(Sigil.ExceptionBlock)" />
public EmitShorthand <DelegateType> BeginFinallyBlock(ExceptionBlock forTry, out FinallyBlock forFinally)
{
forFinally = BeginFinallyBlock(forTry);
return(this);
}