Can we catch Error Exception in JINT debugger Step Mode

[RanjeetShinde]

Hi @Jither @sebastienros @lahma,

In the JINT debugger, can we get line number and column information in exceptions? if script is having any issue.

Is it possible to catch an exception in debugstep like in below code

private StepMode EngineStep(object sender, DebugInformation debugInfo)
{
try
{
Assert.NotNull(sender);
Assert.IsType(typeof(Engine), sender);
Assert.NotNull(debugInfo);
var currentstatment = debugInfo.CurrentNode;
var globalScope = debugInfo.CurrentScopeChain.Single(s => s.ScopeType == DebugScopeType.Global);
var dsdsdsdsd = debugInfo.CurrentNode;
for (int i = 63; i < globalScope.BindingNames.Count; i++)
{
var names = globalScope.BindingNames[i];
JsValue value = globalScope.GetBindingValue(names);
var ddsdssdsd = value;
}
return stepMode;
}
catch(JavaScriptException ex)
{
var messa = ex;
return stepMode;
}
}

Engine Code :

      try
        { 
        var engine = new Engine(options => options.DebugMode().InitialStepMode(stepMode));

        engine.Debugger.Step += EngineStep;         
        engine.Evaluate(content);

        engine.Debugger.Step -= EngineStep;

        }
        catch (ParserException pEx)
        {
            Console.WriteLine("Parser Exception: " + pEx.Message);
        }
        catch (JavaScriptException rEx)
        {
            Console.WriteLine("Runtime Exception: " + rEx.Message);
        }

Script :

var str5 = 'ranjeet shinde i am programer'
var array = str.split('i')

[Jither]

You can't catch a JS or Parser exception inside a Step event handler, because no JavaScript is being parsed or executed when the engine is paused for a step or break - hence, no such exceptions will be thrown.

The debugger doesn't really have anything to do with exceptions, and it's been a while since I looked deeply into Jint, so don't know if exceptions have been unified yet, and not sure if they include the currently executing node. If they do, the node would include the source location.