public void VisitNode(JSTryCatchBlock tcb)
{
// Hoisting a label out of the try {} body is safe since it always runs.
MaybeHoist(tcb, tcb.Body.SelfAndChildren.OfType <JSStatement>());
VisitChildren(tcb);
}
public void VisitNode(JSTryCatchBlock tcb)
{
if ((tcb.Finally != null) && (tcb.Catch == null))
{
do
{
if (!tcb.Finally.Children.All((n) => n is JSExpressionStatement))
{
break;
}
var statements = tcb.Finally.Children.OfType <JSExpressionStatement>().ToArray();
if (statements.Any((es) => es.Expression.HasGlobalStateDependency))
{
break;
}
if (!statements.All((es) => IsEffectivelyConstant(es.Expression)))
{
break;
}
ParentNode.ReplaceChild(tcb, tcb.Body);
VisitReplacement(tcb.Body);
return;
} while (false);
}
VisitChildren(tcb);
}
public void VisitNode(JSTryCatchBlock tcb)
{
if (tcb.CatchVariable != null)
{
State.Assignments.Add(
new FunctionAnalysis1stPass.Assignment(
GetParentNodeIndices(), StatementIndex, NodeIndex,
tcb.CatchVariable, new JSNullExpression(), JSOperator.Assignment,
tcb.CatchVariable.IdentifierType, tcb.CatchVariable.IdentifierType
)
);
ModifiedVariable(tcb.CatchVariable);
}
VisitChildren(tcb);
}
public void VisitNode(JSTryCatchBlock tcb)
{
if ((tcb.Catch ?? tcb.Finally) == null)
{
Visit(tcb.Body);
return;
}
Output.WriteRaw("try");
Output.Space();
Output.OpenBrace();
Visit(tcb.Body);
if (tcb.Catch != null)
{
Output.CloseAndReopenBrace((o) => {
if (o != Output)
{
throw new InvalidOperationException("Output mismatch");
}
o.WriteRaw("catch");
o.Space();
o.LPar();
Visit(tcb.CatchVariable);
o.RPar();
});
Visit(tcb.Catch);
}
if (tcb.Finally != null)
{
Output.CloseAndReopenBrace("finally");
Visit(tcb.Finally);
}
Output.CloseBrace();
}