void SaveStateAndPos(ref Context ctx) {
ctx.bPos = buffer.Pos;
ctx.rPos = readPos;
ctx.cCol = cCol;
ctx.lNum = lNum;
ctx.state = state;
ctx.cChr = code;
}
void RestoreStateAndPos(ref Context ctx) {
buffer.Pos = ctx.bPos;
readPos = ctx.rPos;
cCol = ctx.cCol;
lNum = ctx.lNum;
state = ctx.state;
code = ctx.cChr;
}
public ParseTreeEvaluator(Context context)
: base()
{
Context = context;
}