snapshot of https://github.com/nats-io/nats-server.git (main, 2026-09-15; blobs > 131072B omitted)

server/stree/node.go

@@ -0,0 +1,47 @@
+// Copyright 2023-2026 The NATS Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package stree
+
+// Internal node interface.
+type node interface {
+	isLeaf() bool
+	base() *meta
+	setPrefix(pre []byte)
+	addChild(c byte, n node)
+	findChild(c byte) *node
+	deleteChild(c byte)
+	isFull() bool
+	grow() node
+	shrink() node
+	kind() string
+	iter(f func(node) bool)
+	children() []node
+	numChildren() uint16
+	path() string
+}
+
+type meta struct {
+	prefix string
+	size   uint16
+}
+
+func (n *meta) isLeaf() bool { return false }
+func (n *meta) base() *meta  { return n }
+
+func (n *meta) setPrefix(pre []byte) {
+	n.prefix = string(pre)
+}
+
+func (n *meta) numChildren() uint16 { return n.size }
+func (n *meta) path() string        { return n.prefix }