Prep to fix the other side of the link list

avoidwork · Dec 6, 2018 · c790d38 · c790d38
1 parent 8f18b83
commit c790d38
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Showing 5 changed files with 18 additions and 14 deletions.
diff --git a/lib/tiny-lru.js b/lib/tiny-lru.js
@@ -13,11 +13,13 @@
 	const next = typeof process !== "undefined" ? process.nextTick : arg => setTimeout(arg, 1),
 		empty = null;
 
-	function link (item, key) {
-		item.next = key;
+	function link (item, key, dir) {
+		const other = dir === "next" ? "previous" : "next";
 
-		if (item.previous === key) {
-			item.previous = empty;
+		item[dir] = key;
+
+		if (item[other] === key) {
+			item[other] = empty;
 		}
 	}
 
@@ -143,7 +145,7 @@
 
 				if (this.first !== key) {
 					item.previous = this.first;
-					link(this.cache[this.first], key);
+					link(this.cache[this.first], key, "next");
 				}
 
 				if (this.last === key && item.previous !== empty) {
@@ -167,7 +169,7 @@
 				}
 
 				if (this.first !== empty && this.first !== key) {
-					link(this.cache[this.first], key);
+					link(this.cache[this.first], key, "next");
 				}
 			}
 

diff --git a/lib/tiny-lru.min.js b/lib/tiny-lru.min.js