public EvaluateResponse Evaluate(EvaluateArguments args)
{
if ((engine.State & HALT_OR_FAULT) != 0)
{
return(DebugAdapter.FailedEvaluation);
}
var(typeHint, index, variableName) = Helpers.ParseEvalExpression(args.Expression);
if (variableName.StartsWith("$storage"))
{
return(engine.EvaluateStorageExpression(this, args));
}
Variable?GetVariable(StackItem item, Parameter local)
{
if (index.HasValue)
{
if (item is Neo.VM.Types.Array neoArray &&
index.Value < neoArray.Count)
{
return(neoArray[index.Value].GetVariable(this, local.Name + $"[{index.Value}]", typeHint));
}
}
else
{
return(item.GetVariable(this, local.Name, typeHint ?? local.Type));
}
return(null);
}
for (var stackIndex = 0; stackIndex < engine.InvocationStack.Count; stackIndex++)
{
var context = engine.InvocationStack.Peek(stackIndex);
if (context.AltStack.Count <= 0)
{
continue;
}
var method = Contract.GetMethod(context);
if (method == null)
{
continue;
}
var locals = method.Locals.ToArray();
var variables = (Neo.VM.Types.Array)context.AltStack.Peek(0);
for (int varIndex = 0; varIndex < Math.Min(variables.Count, locals.Length); varIndex++)
{
var local = locals[varIndex];
if (local.Name == variableName)
{
var variable = GetVariable(variables[varIndex], local);
if (variable != null)
{
return(new EvaluateResponse()
{
Result = variable.Value,
VariablesReference = variable.VariablesReference,
Type = variable.Type
});
}
}
}
}
return(DebugAdapter.FailedEvaluation);
}
