private bool Until<T1>(PatternMatcher matcher, Func<T1, bool> callback, bool breakCondition) where T1 : class, IInDictElement {
bool result = !breakCondition;
var en = _Elements.GetEnumerator();
while (en.MoveNext()) {
if (en.Current.Value is T1) {
bool matched = (matcher == null) ||matcher.IsMatched(en.Current.Key);
if (matched) {
if (callback(en.Current.Value as T1) == breakCondition) {
result = breakCondition;
break;
}
}
}
}
return result;
}
public List<T> Matched(PatternMatcher matcher) {
return Matched<T>(matcher);
}
public bool UntilFalse(PatternMatcher matcher, Func<T, bool> callback) {
return Until<T>(matcher, callback, false);
}
public bool UntilTrue(PatternMatcher matcher, Func<T, bool> callback) {
return Until<T>(matcher, callback, true);
}
public void ForEach(PatternMatcher matcher, Action<T> callback) {
ForEach<T>(matcher, callback);
}
public bool UntilFalse<T1>(PatternMatcher matcher, Func<T1, bool> callback) where T1 : class, IInDictElement {
return Until(matcher, callback, false);
}
public void ForEach<T1>(PatternMatcher matcher, Action<T1> callback) where T1 : class, IInDictElement {
UntilTrue<T1>(matcher, (T1 element) => {
callback(element);
return false;
});
}