snapshot of https://github.com/ThreeDotsLabs/watermill.git (master, 2026-09-15; blobs > 131072B omitted)

components/cqrs/name.go

@@ -0,0 +1,58 @@
+package cqrs
+
+import (
+	"fmt"
+	"strings"
+)
+
+// FullyQualifiedStructName returns object name in format [package].[type name].
+// For example, for the struct:
+//
+//	package events
+//	type UserCreated struct {}
+//
+// it will return "events.UserCreated".
+//
+// It ignores if the value is a pointer or not.
+func FullyQualifiedStructName(v interface{}) string {
+	s := fmt.Sprintf("%T", v)
+	s = strings.TrimLeft(s, "*")
+
+	return s
+}
+
+// StructName returns struct name in format [type name].
+// For example, for the struct:
+//
+//	package events
+//	type UserCreated struct {}
+//
+// it will return "UserCreated".
+//
+// It ignores if the value is a pointer or not.
+func StructName(v interface{}) string {
+	segments := strings.Split(fmt.Sprintf("%T", v), ".")
+
+	return segments[len(segments)-1]
+}
+
+type namedStruct interface {
+	Name() string
+}
+
+// NamedStruct returns the name from a message implementing the following interface:
+//
+//	type namedStruct interface {
+//		Name() string
+//	}
+//
+// It ignores if the value is a pointer or not.
+func NamedStruct(fallback func(v interface{}) string) func(v interface{}) string {
+	return func(v interface{}) string {
+		if v, ok := v.(namedStruct); ok {
+			return v.Name()
+		}
+
+		return fallback(v)
+	}
+}