private Lexeme Take(LexemeKind lexemeKind, string expected = null, bool ignoreWhitespace = true)
{
if (ignoreWhitespace)
{
SkipWhitespaces();
}
if (Current.Kind != lexemeKind)
{
var lexemeChar = lexemeKind.GetCharacter();
Error($"expected {expected ?? lexemeKind.ToString()}{(lexemeChar != null ? $" '{lexemeChar}'" : "")}, found '{Current.Content}' ({Current.Kind})");
}
return(TakeAny());
}
public static string GetCharacter(this LexemeKind kind)
{
return(CharCache.TryGetValue(kind, out var c)
? c
: CharCache[kind] = typeof(LexemeKind).GetField(kind.ToString()).GetCustomAttribute <DescriptionAttribute>()?.Description);
}
