public override Completion Evaluate(Interpreter interpreter)
{
var @ref = memberExpression.Evaluate(interpreter);
var funcComp = @ref.GetValue();
if (funcComp.IsAbrupt())
{
return(funcComp);
}
var func = funcComp.value !;
if (func == UndefinedValue.Instance && @ref.value is ReferenceValue r)
{
return(Completion.ThrowReferenceError($"Cannot call undefined method {r.referencedName } on a {r.baseValue.GetType().Name}"));
}
if (@ref.value is ReferenceValue referenceValue && !referenceValue.baseValue.IsPrimitive() && referenceValue.referencedName == "eval")
{
if (func == interpreter.CurrentRealm().Intrinsics.Eval)
{
var argList = arguments.ArgumentListEvaluation();
if (argList.IsAbrupt())
{
return(argList);
}
if (!argList.Other.Any())
{
return(Completion.NormalCompletion(UndefinedValue.Instance));
}
var evalText = argList.Other ![0];
private BooleanCompletion EvaluateDelete(Interpreter interpreter)
{
var refComp = unaryExpression.Evaluate(interpreter);
if (refComp.IsAbrupt())
{
return(refComp.WithEmptyBool());
}
var @ref = refComp.value;
if (!(@ref is ReferenceValue reference))
{
return(true);
}
if (reference.IsUnresolvableReference())
{
if (reference.strict)
{
throw new InvalidOperationException("OperatorUnaryExpression.EvaluateDelete: cannot delete an unresolved member in strict mode");
}
return(true);
}
if (reference.IsPropertyReference())
{
if (reference is SuperReferenceValue)
{
return(Completion.ThrowReferenceError("OperatorUnaryExpression.EvaluateDelete: cannot delete from super").WithEmptyBool());
}
var baseObj = ((IValue)reference.baseValue).ToObject().value as Object;
var deleteStatus = baseObj !.InternalDelete(reference.referencedName);
if (deleteStatus.IsAbrupt())
{
return(deleteStatus);
}
var success = deleteStatus.Other;
if (success == false && reference.strict)
{
return(Completion.ThrowTypeError("OperatorUnaryExpression.EvaluateDelete: delete failed in strict mode").WithEmptyBool());
}
return(success);
}
if (!(reference.baseValue is EnvironmentRecord envRec))
{
throw new InvalidOperationException("OperatorUnaryExpression.EvaluateDelete: unrecognized IReferenceable");
}
return(envRec.DeleteBinding(reference.referencedName));
}
