public static CharValue New(char value, SrcInfo si)
{
var ret = new CharValue();
ret.value = value;
ret.SrcInfo = si;
return ret;
}
public static SrcInfo New(string source, int number, int position)
{
var ret = new SrcInfo();
ret.Source = source;
ret.Number = number;
ret.Position = position;
return ret;
}
public Exception AbortInfo(SrcInfo si, string format, params object[] args)
{
var s1 = "";
var s2 = "";
if (si != null)
{
s1 = si.Source + ": ";
s2 = string.Format("[{0}:{1}] ", si.Number, si.Position);
}
return new Exception(s1 + s2 + string.Format(format, args));
}
private NodeBase ReservedInternal(SrcInfo si, string t)
{
string t2;
NodeBase arg;
switch (t)
{
case "null":
return Null.New(parent);
case "true":
return Cast.New(parent, "bool", IntValue.One);
case "false":
return Cast.New(parent, "bool", IntValue.Zero);
case "base":
return Base.New(parent);
case "new":
return ReadNew();
case "function":
return AutoDelegate(ReadFunction(t, false));
case "delegate":
return ReadDelegate();
case "\\":
return AutoDelegate(Lambda());
case "sizeof":
t2 = Read();
if (t2 != "(" && t2 != null) Rewind();
arg = ReadExpression();
if (arg == null)
throw parent.AbortInfo(si, "sizeof: 引数が必要です。");
if (t2 == "(") Check("sizeof", ")");
return SizeOf.New(parent, arg);
case "addrof":
return AddrOf.New(parent, ReadExpression());
case "typeof":
t2 = Read();
if (t2 != "(" && t2 != null) Rewind();
arg = ReadExpression();
if (arg == null)
throw parent.AbortInfo(si, "typeof: 引数が必要です。");
if (t2 == "(") Check("typeof", ")");
if (arg is TypeOf) return arg;
return TypeOf.New(parent, arg);
case "__FUNCTION__":
return StringValue.New(parent.FullName);
case "__FILE__":
return StringValue.New(si.Source);
case "__LINE__":
return IntValue.New(si.Number);
case "__VERSION__":
return StringValue.New("LLPML ver." + Root.VERSION);
default:
return null;
}
}
public static TokenData New(int pos, SrcInfo si)
{
var ret = new TokenData();
ret.Pos = pos;
ret.SrcInfo = si;
return ret;
}