public override void Execute(ref mdr.DValue result, ref mdr.CallFrame callFrame, Interpreter interpreter)
{
///We try to do as much here as possible to avoid reaching the InternalCall and InternalNew
///See NodeFactory.MakeForEachInStatement to understand the logic
interpreter.PushLocation(this);
Expression.Execute(ref result, ref callFrame, interpreter);
var iterator = new JSPropertyNameEnumerator(result.AsDObject());
Debug.Assert(
ExtendedBody.Statements.Count == 2
&& ExtendedBody.Statements[0] is ExpressionStatement
, "Invalid situation! We must have a ExpressionStatement here!");
var assignToLeft = (ExtendedBody.Statements[0] as ExpressionStatement).Expression;
interpreter.PushTarget(this);
var tempCount = interpreter.GetTemporaryCount();
//int backedgeCount = 0;
while (iterator.MoveNext())
{
var writeId = assignToLeft as WriteIdentifierExpression;
if (writeId != null)
{
result.Set(iterator.GetCurrent());
interpreter.WriteSymbol(writeId.Symbol, ref result, ref callFrame);
}
else
{
//This is an unlikely case anyways!
var writeIndex = assignToLeft as WriteIndexerExpression;
Debug.Assert(writeIndex != null, "Invalid situation! We must have a WriteIndexerExpression here!");
writeIndex.Container.Execute(ref result, ref callFrame, interpreter);
var obj = result.AsDObject();
writeIndex.Index.Execute(ref result, ref callFrame, interpreter);
obj.SetField(ref result, iterator.GetCurrent());
}
//backedgeCount++;
OriginalBody.Execute(ref result, ref callFrame, interpreter);
if (interpreter.CompletionType == Interpreter.CompletionTypes.Continue && interpreter.CompletionTargetStatement == this)
interpreter.SetCompletion(Interpreter.CompletionTypes.Normal, null);
else if (interpreter.CompletionType != Interpreter.CompletionTypes.Normal)
break;
interpreter.ReleaseTemporariesAfter(tempCount);
}
interpreter.PopTarget(this);
//interpreter.IncrementBackedgeCount(backedgeCount);
interpreter.PopLocation(this, ref result);
}
public override void Execute(ref mdr.DValue result, ref mdr.CallFrame callFrame, Interpreter interpreter)
{
interpreter.PushLocation(this);
Value.Execute(ref result, ref callFrame, interpreter);
interpreter.WriteSymbol(Symbol, ref result, ref callFrame);
interpreter.PopLocation(this, ref result);
}
