private void GuardNotSet()
{
if (_node != null)
{
throw ExpressionParseException.NestedNodeAlreadySet().Decorate(Token);
}
}
private void GuardPartOfPropertyAccess(ExpressionParserHelper helper)
{
if (helper.Top as Property == null)
{
throw ExpressionParseException.SquareBracketsAreNotUsedInPropertyAccess().Decorate(helper.Current);
}
}
private void GuardNotPartOfFunction(string method)
{
if (_arguments == 0)
{
throw ExpressionParseException.BracketsAreUsedInFunction(method).Decorate(Token);;
}
}
public Expression Yield()
{
Reduce(-1);
Expression result = Pop();
if (Count > 0)
{
throw ExpressionParseException.ExpressionStackNotEmptyOnYield(Top).Decorate(_current);
}
return(result);
}
internal void FillNext(Expression exp)
{
if (!PartOfFunction && _nodes.Count > 1)
{
throw ExpressionParseException.BracketsAreNotUsedInFunction("Adding second parameter").Decorate(Token);
}
if (!_paramsArgument && AllFilled)
{
throw ExpressionParseException.UnExpectedParameter(exp).Decorate(Token);
}
_nodes.Add(exp);
}
public override object Evaluate(IModel model)
{
if (_first == null)
{
throw ExpressionParseException.MissingExpression("first").Decorate(Token);
}
if (_second == null)
{
throw ExpressionParseException.MissingExpression("second").Decorate(Token);
}
return(InternalEvaluate(model));
}
public override object Evaluate(IModel model)
{
if (_lhs == null)
{
throw ExpressionParseException.MissingExpression("lhs").Decorate(Token);
}
if (_rhs == null)
{
throw ExpressionParseException.MissingExpression("rhs").Decorate(Token);
}
return(InternalEvaluate(model));
}
public static void FillArguments(ExpressionParserHelper parseHelper)
{
var brackets = (Brackets)parseHelper.Pop();
var function = (Function)parseHelper.Top;
if (brackets.Nodes.Count < function.Arguments.Where(a => !a.Params).Count())
{
throw ExpressionParseException.ExpectedMoreParameter(function, brackets.Nodes.Count,
function.Arguments.Length).Decorate(
parseHelper.Lookahead ?? parseHelper.Current);
}
function.FillNested(brackets);
}
public decimal RhsTyped(IModel model)
{
if (Rhs == null)
{
throw ExpressionParseException.MissingExpression("rhs").Decorate(Token);
}
var raw = Rhs.Evaluate(model);
if (raw == null)
{
throw ExpressionParseException.UnexpectedNullValue("rhs").Decorate(Token);
}
return((decimal)TypeConverter.To(raw, ParameterType));
}
