public virtual EcmaValue Next()
{
if (this.IteratedObject == null)
{
return(EcmaValueUtility.CreateIterResultObject(EcmaValue.Undefined, true));
}
if (iterator.MoveNext())
{
KeyValuePair <EcmaValue, EcmaValue> entry = iterator.Current;
switch (this.ResultKind)
{
case EcmaIteratorResultKind.Key:
return(EcmaValueUtility.CreateIterResultObject(entry.Key, false));
case EcmaIteratorResultKind.Value:
return(EcmaValueUtility.CreateIterResultObject(entry.Value, false));
case EcmaIteratorResultKind.Entry:
return(EcmaValueUtility.CreateIterResultObject(new EcmaArray(new[] { entry.Key, entry.Value }), false));
}
throw new InvalidOperationException("Unknown kind value");
}
Close();
return(EcmaValueUtility.CreateIterResultObject(EcmaValue.Undefined, true));
}
public override DynamicMetaObject BindSetMember(SetMemberBinder binder, DynamicMetaObject value)
{
Expression expr = Expression.Assign(Expression.Property(Expression.Convert(Expression, typeof(EcmaValue)), "Item", Expression.Constant(new EcmaPropertyKey(binder.Name))),
EcmaValueUtility.ConvertToEcmaValueExpression(value.Expression));
return(ReturnDynamicMetaObject(binder, expr));
}
public EcmaValue(object value)
{
EcmaValue resolved = EcmaValueUtility.ConvertFromObject(value);
this.handle = resolved.handle;
this.binder_ = resolved.binder;
}
private EcmaValue TransformValue(RuntimeObject holder, EcmaPropertyKey property, EcmaValue value)
{
if (value.Type == EcmaValueType.Object)
{
EcmaValue toJson = value[WellKnownProperty.ToJSON];
if (toJson.IsCallable)
{
value = toJson.Call(value, property.ToValue());
}
}
if (replacer != EcmaValue.Undefined)
{
value = replacer.Call(holder, property.ToValue(), value);
}
if (value.Type == EcmaValueType.Object)
{
EcmaValue primitive = EcmaValueUtility.UnboxPrimitiveObject(value);
switch (primitive.Type)
{
case EcmaValueType.Number:
case EcmaValueType.String:
case EcmaValueType.Boolean:
return(primitive);
}
}
return(value);
}
private void ExecuteCallback(PromiseExecutor executor)
{
try {
executor(ResolveSelf, RejectSelf);
} catch (Exception ex) {
RejectSelf(EcmaValueUtility.GetValueFromException(ex));
}
}
private void HandleCompletedPromise(Promise previous)
{
try {
HandleResult(previous.State, previous.Value);
} catch (Exception ex) {
RejectCallback.Call(EcmaValue.Undefined, EcmaValueUtility.GetValueFromException(ex));
}
}
public EcmaValue(SerializationInfo info, StreamingContext context)
{
Type type = (Type)info.GetValue("ut", typeof(Type));
object value = info.GetValue("uo", type);
EcmaValue resolved = EcmaValueUtility.ConvertFromObject(value);
this.handle = resolved.handle;
this.binder_ = resolved.binder;
}
private void RejectFromFaultedTask(Task task)
{
AggregateException ex = task.Exception.Flatten();
Exception reason = ex;
if (ex.InnerExceptions.Count == 1)
{
reason = ex.InnerExceptions[0];
}
SetState(PromiseState.Rejected, EcmaValueUtility.GetValueFromException(reason), false);
}
EcmaValue IGeneratorEnumerable.Resume(GeneratorResumeState state, EcmaValue value)
{
switch (state)
{
case GeneratorResumeState.Return:
throw new GeneratorClosedException(value);
case GeneratorResumeState.Throw:
throw EcmaException.FromValue(value);
}
if (MoveNext())
{
return(EcmaValueUtility.CreateIterResultObject(this.Current, false));
}
return(EcmaValueUtility.CreateIterResultObject(EcmaValue.Undefined, true));
}
public override EcmaValue Resume(GeneratorResumeState state, EcmaValue value)
{
if (this.State == GeneratorState.Running)
{
throw new EcmaTypeErrorException(InternalString.Error.GeneratorRunning);
}
nextState = state;
if (this.State != GeneratorState.SuspendedYield)
{
switch (state)
{
case GeneratorResumeState.Throw:
Close();
throw EcmaException.FromValue(value);
case GeneratorResumeState.Return:
Close();
return(EcmaValueUtility.CreateIterResultObject(value, true));
}
}
else
{
resumeValue = value;
}
if (this.State != GeneratorState.Closed)
{
try {
this.State = GeneratorState.Running;
if (TryYieldNext(out EcmaValue result))
{
return(EcmaValueUtility.CreateIterResultObject(result, false));
}
} catch {
if (nextState != GeneratorResumeState.Return)
{
Close();
throw;
}
} finally {
if (this.State != GeneratorState.Closed)
{
this.State = GeneratorState.SuspendedYield;
}
}
Close();
}
return(EcmaValueUtility.CreateIterResultObject(nextState == GeneratorResumeState.Return ? resumeValue : default, true));
public override EcmaPropertyDescriptor GetOwnProperty(EcmaPropertyKey propertyKey)
{
EcmaPropertyDescriptor current = base.GetOwnProperty(propertyKey);
if (EcmaValueUtility.TryIndexByPropertyKey(arguments, propertyKey, out EcmaValue value))
{
if (taintedLevel == null)
{
return(new EcmaPropertyDescriptor(value, EcmaPropertyAttributes.DefaultDataProperty));
}
if (taintedLevel[propertyKey.ToArrayIndex()] == TaintLevel.AttributeTainted)
{
current.Value = value;
}
}
return(current);
}
public static EcmaValue Stringify(EcmaValue value, EcmaValue replacer, EcmaValue space)
{
string indentString;
space = EcmaValueUtility.UnboxPrimitiveObject(space);
if (space.Type == EcmaValueType.Number)
{
indentString = new String(' ', Math.Max(0, Math.Min(10, space.ToInt32())));
}
else if (space.Type == EcmaValueType.String)
{
indentString = space.ToStringOrThrow();
}
else
{
indentString = String.Empty;
}
string result;
if (replacer.IsCallable)
{
result = new EcmaJsonWriter(indentString, replacer).Serialize(value);
}
else if (EcmaArray.IsArray(replacer))
{
HashSet <string> propertyList = new HashSet <string>();
for (long i = 0, length = replacer[WellKnownProperty.Length].ToLength(); i < length; i++)
{
EcmaValue item = EcmaValueUtility.UnboxPrimitiveObject(replacer[i]);
if (item.Type == EcmaValueType.String || item.Type == EcmaValueType.Number)
{
propertyList.Add(item.ToStringOrThrow());
}
}
result = new EcmaJsonWriter(indentString, propertyList).Serialize(value);
}
else
{
result = new EcmaJsonWriter(indentString).Serialize(value);
}
return(result ?? EcmaValue.Undefined);
}
public override EcmaValue Resume(GeneratorResumeState state, EcmaValue value)
{
if (this.State != GeneratorState.Closed)
{
this.State = GeneratorState.Running;
}
try {
EcmaValue result = default;
bool done = true;
switch (state)
{
case GeneratorResumeState.Resume:
done = !iterator.MoveNext(value);
result = iterator.Current;
break;
case GeneratorResumeState.Return:
if (!TryGetResult(WellKnownProperty.Return, value, out done, out result))
{
this.State = GeneratorState.Closed;
return(Promise.Resolve(EcmaValueUtility.CreateIterResultObject(value, true)));
}
break;
case GeneratorResumeState.Throw:
if (!TryGetResult(WellKnownProperty.Throw, value, out done, out result))
{
this.State = GeneratorState.Closed;
return(Promise.Reject(value));
}
break;
}
if (done)
{
this.State = GeneratorState.Closed;
}
return(Promise.Resolve(result, new ResultHandler(done).CreateIterResultObject, null));
} catch (Exception ex) {
return(Promise.Reject(ex));
}
}
private void SetState(PromiseState state, EcmaValue value, bool finalize)
{
PromiseCallback callback = state == PromiseState.Fulfilled ? fulfilledCallback : rejectedCallback;
fulfilledCallback = null;
rejectedCallback = null;
if (finalize || callback == null)
{
SetStateFinalize(state, value);
}
else
{
RuntimeExecution.Enqueue(() => {
try {
value = callback(value);
ResolveSelf(value, true);
} catch (Exception ex) {
SetStateFinalize(PromiseState.Rejected, EcmaValueUtility.GetValueFromException(ex));
}
});
}
}
private void YieldNext()
{
if (this.State != GeneratorState.Closed)
{
try {
this.State = GeneratorState.Running;
if (TryYieldNext(out EcmaValue result))
{
Promise.Resolve(result, ResolveFromYield, RejectFromYield);
return;
}
} catch (GeneratorClosedException ex) {
Resolve(ex.ReturnValue, true);
} catch (Exception ex) {
Reject(EcmaValueUtility.GetValueFromException(ex));
}
if (this.State != GeneratorState.AwaitingReturn)
{
Close();
}
}
}
private void ResolveSelf(EcmaValue value, bool finalize)
{
if (value.Type == EcmaValueType.Object)
{
RuntimeObject obj = value.ToObject();
if (obj == this)
{
SetStateFinalize(PromiseState.Rejected, new EcmaTypeErrorException(InternalString.Error.PromiseSelfResolution).ToValue());
return;
}
try {
RuntimeObject then = obj.GetMethod(WellKnownProperty.Then);
if (then != null)
{
then.Call(value, (PromiseResolver)ResolveSelf, (PromiseResolver)RejectSelf);
return;
}
} catch (Exception ex) {
SetStateFinalize(PromiseState.Rejected, EcmaValueUtility.GetValueFromException(ex));
return;
}
}
SetState(PromiseState.Fulfilled, value, finalize);
}
public static EcmaValue ParseInt(EcmaValue str, EcmaValue radix)
{
string inputString = str.ToStringOrThrow();
return(EcmaValueUtility.ParseIntInternal(inputString, radix.ToInt32(), true));
}
private void Resolve(EcmaValue value, bool done)
{
queue.Dequeue().Capability.Resolve(EcmaValueUtility.CreateIterResultObject(value, done));
}
private Expression GetConvertToEcmaValueExpression(DynamicMetaObject arg)
{
return(arg.HasValue ? Expression.Constant(new EcmaValue(arg.Value)) : EcmaValueUtility.ConvertToEcmaValueExpression(arg.Expression));
}
public override DynamicMetaObject BindConvert(ConvertBinder binder)
{
return(ReturnDynamicMetaObject(binder, EcmaValueUtility.ConvertFromEcmaValueExpression(Expression, binder.ReturnType)));
}
public static EcmaValue ParseFloat(EcmaValue str)
{
string inputString = str.ToStringOrThrow();
return(EcmaValueUtility.ParseFloatInternal(inputString, true));
}
public EcmaValue CreateIterResultObject(EcmaValue value)
{
return(EcmaValueUtility.CreateIterResultObject(value, done));
}
public static Promise Reject(Exception ex)
{
return(Reject(EcmaValueUtility.GetValueFromException(ex)));
}