public override JSValue Evaluate(Context context)
{
SuspendData suspendData = null;
if (context._executionMode >= ExecutionMode.Resume)
{
suspendData = context.SuspendData[this] as SuspendData;
}
JSValue source = null;
if (suspendData == null || suspendData.source == null)
{
if (context._debugging && !(_source is CodeBlock))
{
context.raiseDebugger(_source);
}
source = _source.Evaluate(context);
if (context._executionMode == ExecutionMode.Suspend)
{
context.SuspendData[this] = null;
return(null);
}
}
else
{
source = suspendData.source;
}
JSValue variable = null;
if (suspendData == null || suspendData.variable == null)
{
if (context._debugging && !(_variable is CodeBlock))
{
context.raiseDebugger(_variable);
}
var varialeDefStat = _variable as VariableDefinition;
if (varialeDefStat != null)
{
_variable.Evaluate(context);
variable = (varialeDefStat._initializers[0]._left ?? varialeDefStat._initializers[0]).EvaluateForWrite(context);
}
else if (_variable is Assignment)
{
_variable.Evaluate(context);
variable = (_variable as Assignment)._left.Evaluate(context);
}
else
{
variable = _variable.EvaluateForWrite(context);
}
if (context._executionMode == ExecutionMode.Suspend)
{
if (suspendData == null)
{
suspendData = new SuspendData();
}
context.SuspendData[this] = suspendData;
suspendData.source = source;
return(null);
}
}
else
{
variable = suspendData.variable;
}
if (!source.Defined || source.IsNull || _body == null)
{
return(null);
}
var iterator = (suspendData != null ? suspendData.iterator : null) ?? source.AsIterable().iterator();
if (iterator == null)
{
return(null);
}
IIteratorResult iteratorResult = context._executionMode != ExecutionMode.Resume ? iterator.next() : null;
while (context._executionMode >= ExecutionMode.Resume || !iteratorResult.done)
{
if (context._executionMode != ExecutionMode.Resume)
{
variable.Assign(iteratorResult.value);
}
_body.Evaluate(context);
if (context._executionMode != ExecutionMode.None)
{
if (context._executionMode < ExecutionMode.Return)
{
var me = context._executionInfo == null || System.Array.IndexOf(_labels, context._executionInfo._oValue as string) != -1;
var _break = (context._executionMode > ExecutionMode.Continue) || !me;
if (me)
{
context._executionMode = ExecutionMode.None;
context._executionInfo = JSValue.notExists;
}
if (_break)
{
return(null);
}
}
else if (context._executionMode == ExecutionMode.Suspend)
{
if (suspendData == null)
{
suspendData = new SuspendData();
}
context.SuspendData[this] = suspendData;
suspendData.source = source;
suspendData.variable = variable;
suspendData.iterator = iterator;
return(null);
}
else
{
return(null);
}
}
iteratorResult = iterator.next();
}
return(null);
}
public override JSValue Evaluate(Context context)
{
SuspendData suspendData = null;
if (context._executionMode >= ExecutionMode.Resume)
{
suspendData = context.SuspendData[this] as SuspendData;
}
JSValue source = null;
if (suspendData == null || suspendData.source == null)
{
if (context._debugging && !(_source is CodeBlock))
{
context.raiseDebugger(_source);
}
source = _source.Evaluate(context);
if (context._executionMode == ExecutionMode.Suspend)
{
context.SuspendData[this] = null;
return(null);
}
}
else
{
source = suspendData.source;
}
JSValue variable = null;
if (suspendData == null || suspendData.variable == null)
{
if (context._debugging && !(_variable is CodeBlock))
{
context.raiseDebugger(_variable);
}
var varialeDefStat = _variable as VariableDefinition;
if (varialeDefStat != null)
{
_variable.Evaluate(context);
variable = (varialeDefStat._initializers[0]._left ?? varialeDefStat._initializers[0]).EvaluateForWrite(context);
}
else if (_variable is Assignment)
{
_variable.Evaluate(context);
variable = (_variable as Assignment)._left.Evaluate(context);
}
else
{
variable = _variable.EvaluateForWrite(context);
}
if (context._executionMode == ExecutionMode.Suspend)
{
if (suspendData == null)
{
suspendData = new SuspendData();
}
context.SuspendData[this] = suspendData;
suspendData.source = source;
return(null);
}
}
else
{
variable = suspendData.variable;
}
if (!source.Defined ||
(source._valueType >= JSValueType.Object && source._oValue == null) ||
_body == null)
{
return(JSValue.undefined);
}
var index = 0;
var processedKeys = (suspendData != null ? suspendData.processedKeys : null) ?? new HashSet <string>(StringComparer.Ordinal);
while (source != null)
{
var keys = (suspendData != null ? suspendData.keys : null) ?? source.GetEnumerator(false, EnumerationMode.RequireValues);
while (context._executionMode >= ExecutionMode.Resume || keys.MoveNext())
{
if (context._executionMode != ExecutionMode.Resume)
{
var key = keys.Current.Key;
variable._valueType = JSValueType.String;
variable._oValue = key;
if (processedKeys.Contains(key))
{
continue;
}
processedKeys.Add(key);
if ((keys.Current.Value._attributes & JSValueAttributesInternal.DoNotEnumerate) != 0)
{
continue;
}
if (context._debugging && !(_body is CodeBlock))
{
context.raiseDebugger(_body);
}
}
context._lastResult = _body.Evaluate(context) ?? context._lastResult;
if (context._executionMode != ExecutionMode.None)
{
if (context._executionMode < ExecutionMode.Return)
{
var me = context._executionInfo == null || System.Array.IndexOf(_labels, context._executionInfo._oValue as string) != -1;
var _break = (context._executionMode > ExecutionMode.Continue) || !me;
if (me)
{
context._executionMode = ExecutionMode.None;
context._executionInfo = JSValue.notExists;
}
if (_break)
{
return(null);
}
}
else if (context._executionMode == ExecutionMode.Suspend)
{
if (suspendData == null)
{
suspendData = new SuspendData();
}
context.SuspendData[this] = suspendData;
suspendData.source = source;
suspendData.variable = variable;
suspendData.processedKeys = processedKeys;
suspendData.keys = keys;
return(null);
}
else
{
return(null);
}
}
index++;
}
source = source.__proto__;
if (source == JSValue.@null || !source.Defined || (source._valueType >= JSValueType.Object && source._oValue == null))
{
break;
}
}
return(null);
}