public override Func <IReadOnlyList <IGrammarTerm>, decimal> VisitFxRateFunc(MyGrammarParser.FxRateFuncContext context)
{
var termId = context.GetText();
var currencyPair = context.currencyPair().GetText();
var term = new FxRateTerm(termId, CurrencyPairIdentifier.ParseExact(currencyPair));
_terms.Add(term);
return(x => x.First(t => t.TermId == term.TermId).Value);
}
public override Func <IReadOnlyList <ExpressionTerm>, decimal> VisitFxRateFunc(MyGrammarParser.FxRateFuncContext context)
{
var currencyPair = context.currencyPair().GetText();
_terms.Add(new ExpressionTerm(currencyPair));
return(x => x.First(y => y.TermId == currencyPair).Value);
}