public override CSResult BuildToCS(BuildEnvironment Env)
{
if (ToSay is VariableParseNode)
{
VariableParseNode vpn = ToSay as VariableParseNode;
if (Env.CurrentContext.VariableExists(vpn.Name))
{
BuildVariable variable = Env.CurrentContext.GetVariable(vpn.Name);
return(new CSResult()
{
GeneratedCS = new CSLineList()
{
new CSLine("Console.Write(" + variable.Name + ");", T.LineNumber)
}
});
}
return(new CSResult()
{
GeneratedCS = new CSLineList()
{
new CSLine("Console.Write(\"mysterious\");", T.LineNumber)
}
});
}
else
{
throw new NotImplementedException();
}
}
public override InterpreterResult Interpret(InterpreterEnvironment Env)
{
object value = null;
if (ToSay is VariableParseNode)
{
VariableParseNode variableNode = ToSay as VariableParseNode;
InterpreterVariable variable = null;
if (variableNode.IsLast)
{
if (Env.CurrentContext.LastVariable != null)
{
variable = Env.CurrentContext.LastVariable;
}
else
{
throw new InterpreterException("Invalid use of " + variableNode.T.Value, variableNode.T);
}
}
else if (Env.CurrentContext.VariableExists(variableNode.Name))
{
variable = Env.CurrentContext.GetVariable(variableNode.Name);
}
else
{
Console.WriteLine("mysterious");
return(new InterpreterResult());
}
if (variable.Type == InterpreterVariableType.Null)
{
Console.WriteLine("null");
return(new InterpreterResult());
}
if (variable.Type == InterpreterVariableType.Undefined)
{
Console.WriteLine("mysterious");
return(new InterpreterResult());
}
value = variable.Value;
}
else
{
InterpreterResult result = ToSay.Interpret(Env);
if (result.Type == InterpreterVariableType.Null)
{
Console.WriteLine("null");
}
else if (result.Type == InterpreterVariableType.Undefined)
{
Console.WriteLine("mysterious");
}
else
{
value = result.Value;
}
}
Console.WriteLine(value);
return(new InterpreterResult());
}
public InputParseNode(Token T, VariableParseNode Variable) : base(T)
{
this.Variable = Variable;
}
public IncDecParseNode(Token T, VariableParseNode Variable, bool Up) : base(T)
{
this.Variable = Variable;
this.Up = Up;
}
public StringLiteralAssignmentParseNode(Token T, VariableParseNode Variable, ParseNodeList Words) : base(T)
{
this.Variable = Variable;
this.Words = Words;
}
public PutIntoParseNode(Token T, VariableParseNode Variable, ParseNode Value) : base(T)
{
this.Value = Value;
this.Variable = Variable;
}
public AssignmentParseNode(Token T, ParseNode Value, VariableParseNode Variable) : base(T)
{
this.Value = Value;
this.Variable = Variable;
}
