feat: add size level aggregation

internal/build/resolver.go

@@ -0,0 +1,109 @@
+package build
+
+import "strings"
+
+// nameResolver maps symbol names to aggregation buckets based on the requested level.
+type nameResolver struct {
+	level      string
+	pkgs       []Package
+	moduleMap  map[string]string
+	packageMap map[string]string
+}
+
+func newNameResolver(level string, pkgs []Package) *nameResolver {
+	lvl := strings.ToLower(strings.TrimSpace(level))
+	if lvl == "" {
+		lvl = "module"
+	}
+	return &nameResolver{
+		level:      lvl,
+		pkgs:       pkgs,
+		moduleMap:  make(map[string]string),
+		packageMap: make(map[string]string),
+	}
+}
+
+func (r *nameResolver) resolve(sym string) string {
+	base := moduleNameFromSymbol(sym)
+	symbol := trimSymbolForMatch(sym)
+	switch r.level {
+	case "full":
+		return base
+	case "package":
+		if pkg := r.matchPackage(symbol); pkg != "" {
+			return pkg
+		}
+	case "module":
+		if mod := r.matchModule(symbol); mod != "" {
+			return mod
+		}
+	}
+	if strings.Contains(symbol, "llgo") {
+		return "llgo-stubs"
+	}
+	return base
+}
+
+func (r *nameResolver) matchPackage(symbol string) string {
+	if symbol == "" {
+		return ""
+	}
+	if cached := r.packageMap[symbol]; cached != "" {
+		return cached
+	}
+	for _, pkg := range r.pkgs {
+		if pkg == nil || pkg.Package == nil {
+			continue
+		}
+		id := pkg.PkgPath
+		if id == "" {
+			continue
+		}
+		if strings.HasPrefix(symbol, id+".") {
+			r.packageMap[symbol] = id
+			return id
+		}
+	}
+	return ""
+}
+
+func (r *nameResolver) matchModule(symbol string) string {
+	if symbol == "" {
+		return ""
+	}
+	if cached := r.moduleMap[symbol]; cached != "" {
+		return cached
+	}
+	for _, pkg := range r.pkgs {
+		if pkg == nil || pkg.Package == nil {
+			continue
+		}
+		path := pkg.PkgPath
+		if path == "" {
+			continue
+		}
+		if strings.HasPrefix(symbol, path+".") {
+			mod := path
+			if pkg.Module != nil && pkg.Module.Path != "" {
+				mod = pkg.Module.Path
+			}
+			r.moduleMap[symbol] = mod
+			return mod
+		}
+	}
+	return ""
+}
+
+func trimSymbolForMatch(sym string) string {
+	name := strings.TrimSpace(sym)
+	for len(name) > 0 && (name[0] == '_' || name[0] == '.') {
+		name = name[1:]
+	}
+	if idx := strings.Index(name, " "); idx >= 0 {
+		name = name[:idx]
+	}
+	if idx := strings.Index(name, "@"); idx >= 0 {
+		name = name[:idx]
+	}
+	return name
+}