add gomap for search

1 files changed, 36 insertions, 0 deletions

diff --git a/search/gomap.go b/search/gomap.go
new file mode 100644
index 0000000..6749b0d
--- /dev/null
+++ b/search/gomap.go
@@ -0,0 +1,36 @@
+package search
+
+type GoMap map[int]int
+
+func NewGoMap() GoMap {
+	return make(GoMap)
+}
+
+func (m GoMap) Empty() bool {
+	return m.Size() == 0
+}
+
+func (m GoMap) Size() int {
+	return len(m)
+}
+
+func (m GoMap) Put(key, val int) {
+	m[key] = val
+}
+
+func (m GoMap) Get(key int) (int, error) {
+	val, ok := m[key]
+	if !ok {
+		return -1, NotFound
+	}
+	return val, nil
+}
+
+func (m GoMap) Del(key int) (int, error) {
+	val, ok := m[key]
+	if !ok {
+		return -1, NotFound
+	}
+	delete(m, key)
+	return val, nil
+}