public ReturnStatement DecompileReturn()
{
PopByte();
Expression expr = null;
if (CurrentIs(OpCodes.ReturnNullValue))
{
PopByte();
var retVal = ReadObject();
var returnNothingStatement = new ReturnNothingStatement();
StatementLocations.Add(StartPositions.Pop(), returnNothingStatement);
return(returnNothingStatement);
}
else if (CurrentIs(OpCodes.Nothing))
{
PopByte();
}
else
{
expr = DecompileExpression();
if (expr == null && PopByte() != (byte)OpCodes.Nothing)
{
return(null); //ERROR ?
}
}
if (ReturnType is Enumeration enm && expr is IntegerLiteral intLit && intLit.Value >= 0 && intLit.Value < enm.Values.Count)
{
expr = new CompositeSymbolRef(new SymbolReference(enm, enm.Name), new SymbolReference(null, enm.Values[intLit.Value].Name));
}
var statement = new ReturnStatement(expr);
StatementLocations.Add(StartPositions.Pop(), statement);
return(statement);
}
public bool VisitNode(ReturnNothingStatement node)
{
//an implementation detail. no textual representation
return(false);
}
public virtual object Visit(ReturnNothingStatement that, object value)
{
throw new System.NotImplementedException();
}
