internal override PhpTypeCode Emit(CodeGenerator /*!*/ codeGenerator)
{
// emit tuple value
foreach (OrderingClause clause in OrderingItems)
{
clause.Expression.Emit(codeGenerator);
}
LastItem.Emit(codeGenerator);
// emit tuple creation
ILEmitter il = codeGenerator.IL;
for (int indirection = 0; indirection < OrderingItems.Count; indirection++)
{
il.Emit(OpCodes.Newobj, LinqExterns.GetTupleInfo(indirection).Constructor);
}
return(PhpTypeCode.Object);
}
internal override PhpTypeCode Emit(CodeGenerator /*!*/ codeGenerator)
{
ILEmitter il = codeGenerator.IL;
int indir = this.count - 2;
// cast object to correct tuple type:
// Tuple<Tuple<...Tuple<object, object>, .. >, object>, object>
il.Emit(OpCodes.Ldarg_1);
il.Emit(OpCodes.Castclass, LinqExterns.GetTupleInfo(indir).Type);
// Find value at specified index (tup.First.First....First/Second);
int timesFirst = index - ((index == count - 1) ? 1 : 0);
for (int i = 0; i < timesFirst; i++)
{
il.Emit(OpCodes.Call, LinqExterns.GetTupleInfo(indir - i).SecondGetter);
}
// The last value is stored in Second, other values are stored in First
il.Emit(OpCodes.Call, (index == count - 1)?
LinqExterns.GetTupleInfo(indir - timesFirst).SecondGetter:
LinqExterns.GetTupleInfo(indir - timesFirst).FirstGetter);
return(PhpTypeCode.Object);
}
