Change common interface to use Keys() in Len() method

Eero Norri · Eero Norri · commit 9c6b76ae1fd6 · 2023-06-12T19:46:13.000+03:00
diff --git a/cache.go b/cache.go
@@ -257,9 +257,7 @@ func (c *Cache[K, V]) Delete(key K) {
 
 // Len returns the number of items in the cache.
 func (c *Cache[K, V]) Len() int {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	return c.cache.Len()
+	return len(c.Keys())
 }
 
 // Contains reports whether key is within cache.

Original file line number	Diff line number	Diff line change
`@@ -257,9 +257,7 @@ func (c *Cache[K, V]) Delete(key K) {`
`257`	`257`
`258`	`258`	`// Len returns the number of items in the cache.`
`259`	`259`	`func (c *Cache[K, V]) Len() int {`
`260`		`- c.mu.Lock()`
`261`		`- defer c.mu.Unlock()`
`262`		`- return c.cache.Len()`
	`260`	`+ return len(c.Keys())`
`263`	`261`	`}`
`264`	`262`
`265`	`263`	`// Contains reports whether key is within cache.`