public Schema AddField(Field field)
{
Guard.NotNull(field, nameof(field));
if (FieldsByName.ContainsKey(field.Name) || FieldsById.ContainsKey(field.Id))
{
throw new ArgumentException($"A field with name '{field.Name}' and id {field.Id} already exists.", nameof(field));
}
return(Clone(clone =>
{
clone.fieldsOrdered = clone.fieldsOrdered.Add(field);
}));
}
internal IField?GetFieldOrNull(ReadOnlySpan <char> fieldName) => FieldsByName.GetValueOrDefault(fieldName.ToString());
