From db5e5eb40d7f8652383099a2154f00158aa476c2 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Wed, 24 Jun 2026 14:52:28 +0000
Subject: ref/store{,/memory}: Add

---
 ref/store/memory/memory.go | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 ref/store/memory/memory.go

(limited to 'ref/store/memory/memory.go')

diff --git a/ref/store/memory/memory.go b/ref/store/memory/memory.go
new file mode 100644
index 00000000..3c8f4968
--- /dev/null
+++ b/ref/store/memory/memory.go
@@ -0,0 +1,43 @@
+package memory
+
+import (
+	"sync"
+
+	"lindenii.org/go/furgit/object/id"
+	"lindenii.org/go/furgit/ref/store"
+)
+
+// Memory reads and writes one in-memory Git reference namespace.
+//
+// Labels: Close-Caller.
+type Memory struct {
+	mu           sync.RWMutex //exhaustruct:optional
+	objectFormat id.ObjectFormat
+	refs         map[string]storedRef
+}
+
+var (
+	_ store.Reader        = (*Memory)(nil)
+	_ store.Transactioner = (*Memory)(nil)
+	_ store.Batcher       = (*Memory)(nil)
+)
+
+// New builds one empty in-memory reference store for one object format.
+func New(objectFormat id.ObjectFormat) *Memory {
+	return &Memory{
+		objectFormat: objectFormat,
+		refs:         make(map[string]storedRef),
+	}
+}
+
+// ObjectFormat returns the object format used by the store.
+func (memory *Memory) ObjectFormat() id.ObjectFormat {
+	return memory.objectFormat
+}
+
+// Close closes the in-memory reference store.
+//
+// Labels: MT-Unsafe.
+func (memory *Memory) Close() error {
+	return nil
+}
-- 
cgit v1.3.1-10-gc9f91