public static bool TryWrite(this IExpression expression, TextWriter writer, Scope scope)
{
var errors = new List <FluentError>();
if (expression is IInlineExpression inlineExpression)
{
inlineExpression.Write(writer, scope);
}
else if (expression is SelectExpression selectExpression)
{
var selector = selectExpression.Selector.Resolve(scope);
if (selector is FluentString or FluentNumber)
{
foreach (var variant in selectExpression.Variants)
{
IFluentType key;
switch (variant.Type)
{
case VariantType.NumberLiteral:
key = FluentNumber.TryNumber(variant.Key.Span);
break;
default:
key = new FluentString(variant.Key.Span);
break;
}
if (key.Matches(selector, scope))
{
variant.Value.Write(writer, scope);
return(scope.Errors.Count == 0);
}
}
}
for (var i = 0; i < selectExpression.Variants.Count; i++)
{
var variant = selectExpression.Variants[i];
if (variant.IsDefault)
{
variant.Value.Write(writer, scope);
return(errors.Count == 0);
}
}
errors.Add(ResolverFluentError.MissingDefault());
}
return(scope.Errors.Count == 0);
}
