Geodata: Reduce memory usage again (#5975)

https://github.com/XTLS/Xray-core/pull/5975#issuecomment-4274779560

common/geodata/strmatcher/anymatcher_linear.go

@@ -0,0 +1,53 @@
+package strmatcher
+
+// LinearAnyMatcher is an implementation of AnyMatcher.
+type LinearAnyMatcher struct {
+	full   *FullMatcherSet
+	domain *DomainMatcherSet
+	substr *SubstrMatcherSet
+	regex  *SimpleMatcherSet
+}
+
+func NewLinearAnyMatcher() *LinearAnyMatcher {
+	return new(LinearAnyMatcher)
+}
+
+// Add implements AnyMatcher.Add.
+func (s *LinearAnyMatcher) Add(matcher Matcher) {
+	switch matcher := matcher.(type) {
+	case FullMatcher:
+		if s.full == nil {
+			s.full = NewFullMatcherSet()
+		}
+		s.full.AddFullMatcher(matcher)
+	case DomainMatcher:
+		if s.domain == nil {
+			s.domain = NewDomainMatcherSet()
+		}
+		s.domain.AddDomainMatcher(matcher)
+	case SubstrMatcher:
+		if s.substr == nil {
+			s.substr = new(SubstrMatcherSet)
+		}
+		s.substr.AddSubstrMatcher(matcher)
+	default:
+		if s.regex == nil {
+			s.regex = new(SimpleMatcherSet)
+		}
+		s.regex.AddMatcher(matcher)
+	}
+}
+
+// MatchAny implements AnyMatcher.MatchAny.
+func (s *LinearAnyMatcher) MatchAny(input string) bool {
+	if s.full != nil && s.full.MatchAny(input) {
+		return true
+	}
+	if s.domain != nil && s.domain.MatchAny(input) {
+		return true
+	}
+	if s.substr != nil && s.substr.MatchAny(input) {
+		return true
+	}
+	return s.regex != nil && s.regex.MatchAny(input)
+}