From 18fc8d9865406a74dbea47f49ac959a543035ec7 Mon Sep 17 00:00:00 2001
From: Alex Yatskov <alex@foosoft.net>
Date: Sat, 20 Aug 2016 19:15:30 -0700
Subject: [PATCH] Performance improvements

---
 ext/bg/js/deinflector.js | 11 +++++------
 ext/bg/js/yomichan.js    | 20 +++++++++++++-------
 2 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/ext/bg/js/deinflector.js b/ext/bg/js/deinflector.js
index 24289b0c..0eabd0f3 100644
--- a/ext/bg/js/deinflector.js
+++ b/ext/bg/js/deinflector.js
@@ -48,22 +48,21 @@ class Deinflection {
         }
 
         for (const rule in rules) {
-            const variants = rules[rule];
-            for (const v of variants) {
+            for (const variant of rules[rule]) {
                 let allowed = this.tags.length === 0;
                 for (const tag of this.tags) {
-                    if (v.ti.indexOf(tag) !== -1) {
+                    if (variant.ti.indexOf(tag) !== -1) {
                         allowed = true;
                         break;
                     }
                 }
 
-                if (!allowed || !this.term.endsWith(v.ki)) {
+                if (!allowed || !this.term.endsWith(variant.ki)) {
                     continue;
                 }
 
-                const term = this.term.slice(0, -v.ki.length) + v.ko;
-                const child = new Deinflection(term, v.to, rule);
+                const term = this.term.slice(0, -variant.ki.length) + variant.ko;
+                const child = new Deinflection(term, variant.to, rule);
                 if (child.deinflect(validator, rules)) {
                     this.children.push(child);
                 }
diff --git a/ext/bg/js/yomichan.js b/ext/bg/js/yomichan.js
index b8fa9593..fd9b84d3 100644
--- a/ext/bg/js/yomichan.js
+++ b/ext/bg/js/yomichan.js
@@ -35,6 +35,7 @@ class Yomichan {
 
         this.translator = new Translator();
         this.asyncPools = {};
+        this.ankiConnectVer = 0;
         this.setState('disabled');
 
         chrome.runtime.onInstalled.addListener(this.onInstalled.bind(this));
@@ -129,13 +130,18 @@ class Yomichan {
     }
 
     ankiInvokeSafe(action, params, pool, callback) {
-        this.api_getVersion({callback: (version) => {
-            if (version === this.getApiVersion()) {
-                this.ankiInvoke(action, params, pool, callback);
-            } else {
-                callback(null);
-            }
-        }});
+        if (this.ankiConnectVer === this.getApiVersion()) {
+            this.ankiInvoke(action, params, pool, callback);
+        } else {
+            this.api_getVersion({callback: (version) => {
+                if (version === this.getApiVersion()) {
+                    this.ankiConnectVer = version;
+                    this.ankiInvoke(action, params, pool, callback);
+                } else {
+                    callback(null);
+                }
+            }});
+        }
     }
 
     ankiInvoke(action, params, pool, callback) {