public void Visit(TryNode node)
{
if (node != null)
{
DoesRequire = false;
}
}
public void Visit(TryNode node)
{
// starts with 'try', so we don't care
}
public void Visit(TryNode node)
{
DebugEx.Fail("shouldn't get here");
}
public override void Visit(TryNode node)
{
if (node != null)
{
// get the field -- it should have been generated when the scope was analyzed
if (node.CatchBlock != null && !string.IsNullOrEmpty(node.CatchVarName))
{
node.SetCatchVariable(node.CatchBlock.BlockScope[node.CatchVarName]);
}
// anaylze the blocks
base.Visit(node);
// if the try block is empty, then set it to null
if (node.TryBlock != null && node.TryBlock.Count == 0)
{
node.ReplaceChild(node.TryBlock, null);
}
// eliminate an empty finally block UNLESS there is no catch block.
if (node.FinallyBlock != null && node.FinallyBlock.Count == 0 && node.CatchBlock != null
&& m_parser.Settings.IsModificationAllowed(TreeModifications.RemoveEmptyFinally))
{
node.ReplaceChild(node.FinallyBlock, null);
}
// check strict-mode restrictions
if (ScopeStack.Peek().UseStrict && !string.IsNullOrEmpty(node.CatchVarName))
{
// catch variable cannot be named "eval" or "arguments"
if (string.CompareOrdinal(node.CatchVarName, "eval") == 0
|| string.CompareOrdinal(node.CatchVarName, "arguments") == 0)
{
node.CatchVarContext.HandleError(JSError.StrictModeVariableName, true);
}
}
}
}
public void Visit(TryNode node)
{
ReportError(node);
}
public void Visit(TryNode node)
{
// invalid! ignore
IsValid = false;
}