protected virtual object EvalParam(ParseTree tree, params object[] paramlist)
{
throw new NotImplementedException();
}
protected virtual object EvalVariablesDefinitions(ParseTree tree, params object[] paramlist)
{
throw new NotImplementedException();
}
protected virtual object EvalConstructorPrefix(ParseTree tree, params object[] paramlist)
{
throw new NotImplementedException();
}
protected virtual object EvalStart(ParseTree tree, params object[] paramlist)
{
return("Could not interpret input; no semantics implemented.");
}
/// <summary>
/// this implements the evaluation functionality, cannot be used directly
/// </summary>
/// <param name="tree">the parsetree itself</param>
/// <param name="paramlist">optional input parameters</param>
/// <returns>a partial result of the evaluation</returns>
internal object Eval(ParseTree tree, params object[] paramlist)
{
object Value = null;
switch (Token.Type)
{
case TokenType.Start:
Value = EvalStart(tree, paramlist);
break;
case TokenType.UseDirective:
Value = EvalUseDirective(tree, paramlist);
break;
case TokenType.ClassDirective:
Value = EvalClassDirective(tree, paramlist);
break;
case TokenType.BaseDirective:
Value = EvalBaseDirective(tree, paramlist);
break;
case TokenType.OptionsDirective:
Value = EvalOptionsDirective(tree, paramlist);
break;
case TokenType.Variable:
Value = EvalVariable(tree, paramlist);
break;
case TokenType.FieldName:
Value = EvalFieldName(tree, paramlist);
break;
case TokenType.Literal:
Value = EvalLiteral(tree, paramlist);
break;
case TokenType.FunctionDefinition:
Value = EvalFunctionDefinition(tree, paramlist);
break;
case TokenType.FunctionName:
Value = EvalFunctionName(tree, paramlist);
break;
case TokenType.LocalVariables:
Value = EvalLocalVariables(tree, paramlist);
break;
case TokenType.Body:
Value = EvalBody(tree, paramlist);
break;
case TokenType.Call:
Value = EvalCall(tree, paramlist);
break;
case TokenType.Function:
Value = EvalFunction(tree, paramlist);
break;
case TokenType.FullFunctionName:
Value = EvalFullFunctionName(tree, paramlist);
break;
case TokenType.StaticPrefix:
Value = EvalStaticPrefix(tree, paramlist);
break;
case TokenType.InstancePrefix:
Value = EvalInstancePrefix(tree, paramlist);
break;
case TokenType.ConstructorPrefix:
Value = EvalConstructorPrefix(tree, paramlist);
break;
case TokenType.EvalConstruct:
Value = EvalEvalConstruct(tree, paramlist);
break;
case TokenType.EvalBody:
Value = EvalEvalBody(tree, paramlist);
break;
case TokenType.FormatString:
Value = EvalFormatString(tree, paramlist);
break;
case TokenType.WhileCycle:
Value = EvalWhileCycle(tree, paramlist);
break;
case TokenType.WhileCondition:
Value = EvalWhileCondition(tree, paramlist);
break;
case TokenType.WhileBody:
Value = EvalWhileBody(tree, paramlist);
break;
case TokenType.CycleSeparator:
Value = EvalCycleSeparator(tree, paramlist);
break;
case TokenType.BoolCondition:
Value = EvalBoolCondition(tree, paramlist);
break;
case TokenType.ForCycle:
Value = EvalForCycle(tree, paramlist);
break;
case TokenType.ForCounter:
Value = EvalForCounter(tree, paramlist);
break;
case TokenType.ForFrom:
Value = EvalForFrom(tree, paramlist);
break;
case TokenType.ForTo:
Value = EvalForTo(tree, paramlist);
break;
case TokenType.ForBody:
Value = EvalForBody(tree, paramlist);
break;
case TokenType.IfCondition:
Value = EvalIfCondition(tree, paramlist);
break;
case TokenType.IfTrueBranch:
Value = EvalIfTrueBranch(tree, paramlist);
break;
case TokenType.IfFalseBranch:
Value = EvalIfFalseBranch(tree, paramlist);
break;
case TokenType.Assignment:
Value = EvalAssignment(tree, paramlist);
break;
case TokenType.AssignmentBody:
Value = EvalAssignmentBody(tree, paramlist);
break;
case TokenType.MathOp:
Value = EvalMathOp(tree, paramlist);
break;
case TokenType.HashAssignment:
Value = EvalHashAssignment(tree, paramlist);
break;
case TokenType.Key:
Value = EvalKey(tree, paramlist);
break;
case TokenType.VariablesDefinitions:
Value = EvalVariablesDefinitions(tree, paramlist);
break;
case TokenType.ParamsDefinitions:
Value = EvalParamsDefinitions(tree, paramlist);
break;
case TokenType.Params:
Value = EvalParams(tree, paramlist);
break;
case TokenType.Param:
Value = EvalParam(tree, paramlist);
break;
default:
Value = Token.Text;
break;
}
return(Value);
}
protected object GetValue(ParseTree tree, TokenType type, int index)
{
return(GetValue(tree, type, ref index));
}
