def create_fast_suffix_matcher_from_existing()

in azure-kusto-data/azure/kusto/data/kusto_trusted_endpoints.py [0:0]

• 6 lines of code
• 6 McCabe index (conditional complexity)

def create_fast_suffix_matcher_from_existing(rules: List[MatchRule], existing: FastSuffixMatcher) -> FastSuffixMatcher:
    if existing is None or len(existing.rules) == 0:
        return FastSuffixMatcher(rules)

    if not rules:
        return existing

    return FastSuffixMatcher([*copy.deepcopy(rules), *(v for item in existing.rules.values() for v in item)])