Xray-core: Refactor geodata (#5814)

https://github.com/XTLS/Xray-core/issues/4422#issuecomment-3533007890

Breaking changes https://github.com/XTLS/Xray-core/pull/5569

Reverts https://github.com/XTLS/Xray-core/pull/5505

Closes https://github.com/XTLS/Xray-core/pull/643

common/geodata/strmatcher/valuematcher_linear.go

@@ -0,0 +1,85 @@
+package strmatcher
+
+// LinearValueMatcher is an implementation of ValueMatcher.
+type LinearValueMatcher struct {
+	full   *FullMatcherGroup
+	domain *DomainMatcherGroup
+	substr *SubstrMatcherGroup
+	regex  *SimpleMatcherGroup
+}
+
+func NewLinearValueMatcher() *LinearValueMatcher {
+	return new(LinearValueMatcher)
+}
+
+// Add implements ValueMatcher.Add.
+func (g *LinearValueMatcher) Add(matcher Matcher, value uint32) {
+	switch matcher := matcher.(type) {
+	case FullMatcher:
+		if g.full == nil {
+			g.full = NewFullMatcherGroup()
+		}
+		g.full.AddFullMatcher(matcher, value)
+	case DomainMatcher:
+		if g.domain == nil {
+			g.domain = NewDomainMatcherGroup()
+		}
+		g.domain.AddDomainMatcher(matcher, value)
+	case SubstrMatcher:
+		if g.substr == nil {
+			g.substr = new(SubstrMatcherGroup)
+		}
+		g.substr.AddSubstrMatcher(matcher, value)
+	default:
+		if g.regex == nil {
+			g.regex = new(SimpleMatcherGroup)
+		}
+		g.regex.AddMatcher(matcher, value)
+	}
+}
+
+// Build implements ValueMatcher.Build.
+func (*LinearValueMatcher) Build() error {
+	return nil
+}
+
+// Match implements ValueMatcher.Match.
+func (g *LinearValueMatcher) Match(input string) []uint32 {
+	// Allocate capacity to prevent matches escaping to heap
+	result := make([][]uint32, 0, 5)
+	if g.full != nil {
+		if matches := g.full.Match(input); len(matches) > 0 {
+			result = append(result, matches)
+		}
+	}
+	if g.domain != nil {
+		if matches := g.domain.Match(input); len(matches) > 0 {
+			result = append(result, matches)
+		}
+	}
+	if g.substr != nil {
+		if matches := g.substr.Match(input); len(matches) > 0 {
+			result = append(result, matches)
+		}
+	}
+	if g.regex != nil {
+		if matches := g.regex.Match(input); len(matches) > 0 {
+			result = append(result, matches)
+		}
+	}
+	return CompositeMatches(result)
+}
+
+// MatchAny implements ValueMatcher.MatchAny.
+func (g *LinearValueMatcher) MatchAny(input string) bool {
+	if g.full != nil && g.full.MatchAny(input) {
+		return true
+	}
+	if g.domain != nil && g.domain.MatchAny(input) {
+		return true
+	}
+	if g.substr != nil && g.substr.MatchAny(input) {
+		return true
+	}
+	return g.regex != nil && g.regex.MatchAny(input)
+}