|
public AddHandler ( |
||
| handler | a handler to be added to the try block | |
| return | void | |
/// <summary>
/// Mark this position as the end of the last started block and
/// make it a finally block. This finally block is associated with the
/// specified try block.
/// </summary>
/// <param name="tryBlock">the try block associated with this finally block</param>
public void EndFinallyBlock(TryBlock tryBlock)
{
Finally finBlock= new Finally((CILLabel)blockStack.Pop(),NewCodedLabel());
tryBlock.AddHandler(finBlock);
}
/// <summary>
/// Mark this position as the end of the last started block and
/// make it a filter block. This filter block is associated with the
/// specified try block. The format is:
/// filterLab: ...
/// ...
/// filterHandler : ...
/// ...
/// </summary>
/// <param name="filterLab">the label where the filter code is</param>
/// <param name="tryBlock">the try block associated with this filter block</param>
public void EndFilterBlock(CILLabel filterLab, TryBlock tryBlock)
{
Filter filBlock = new Filter(filterLab,(CILLabel)blockStack.Pop(),NewCodedLabel());
tryBlock.AddHandler(filBlock);
}
/// <summary>
/// Mark this position as the end of the last started block and
/// make it a catch block. This catch block is associated with the
/// specified try block.
/// </summary>
/// <param name="exceptType">the exception type to be caught</param>
/// <param name="tryBlock">the try block associated with this catch block</param>
public void EndCatchBlock(Class exceptType, TryBlock tryBlock)
{
Catch catchBlock = new Catch(exceptType,(CILLabel)blockStack.Pop(), NewCodedLabel());
tryBlock.AddHandler(catchBlock);
}
/// <summary>
/// Mark this position as the end of the last started block and
/// make it a fault block. This fault block is associated with the
/// specified try block.
/// </summary>
/// <param name="tryBlock">the try block associated with this fault block</param>
public void EndFaultBlock(TryBlock tryBlock)
{
Fault fBlock= new Fault((CILLabel)blockStack.Pop(),NewCodedLabel());
tryBlock.AddHandler(fBlock);
}
internal TryBlock MakeTryBlock(ArrayList labels)
{
TryBlock tBlock = new TryBlock(CILInstructions.GetLabel(labels,tryOffset),
CILInstructions.GetLabel(labels,tryOffset + tryLength));
CILLabel hStart = CILInstructions.GetLabel(labels,handlerOffset);
CILLabel hEnd = CILInstructions.GetLabel(labels,handlerOffset+handlerLength);
HandlerBlock handler = null;
switch (clauseType) {
case (EHClauseType.Exception) :
handler = new Catch((Class)classToken,hStart,hEnd);
break;
case (EHClauseType.Filter) :
handler = new Filter(CILInstructions.GetLabel(labels,filterOffset),hStart,hEnd);
break;
case (EHClauseType.Finally) :
handler = new Finally(hStart,hEnd);
break;
case (EHClauseType.Fault) :
handler = new Fault(hStart,hEnd);
break;
}
tBlock.AddHandler(handler);
return tBlock;
}