refactor: optimize

lib/saxes.js

@@ -1015,13 +1015,14 @@ ${XML_NAMESPACE}.`);
       return;
     }
 
+    const { tags } = this;
     // first make sure that the closing tag actually exists.
     // <a><b></c></b></a> will close everything, otherwise.
-    let t = this.tags.length;
+    let t = tags.length;
     const { tagName } = this;
     const closeTo = tagName;
     while (t--) {
-      const close = this.tags[t];
+      const close = tags[t];
       if (close.name !== closeTo) {
         this.fail("Unexpected close tag");
       }
@@ -1031,19 +1032,17 @@ ${XML_NAMESPACE}.`);
     }
 
     if (t < 0) {
-      this.fail(`Unmatched closing tag: ${this.tagName}`);
-      this.textNode += `</${this.tagName}>`;
+      this.fail(`Unmatched closing tag: ${tagName}`);
+      this.textNode += `</${tagName}>`;
       this.state = S_TEXT;
       return;
     }
-    this.tagName = tagName;
     let s = this.tags.length;
     while (s-- > t) {
-      const tag = this.tag = this.tags.pop();
-      this.tagName = this.tag.name;
-      this.emitNode("onclosetag", this.tagName);
+      const tag = this.tag = tags.pop();
+      this.emitNode("onclosetag", tag.name);
 
-      const parent = this.tags[this.tags.length - 1] || this;
+      const parent = tags[tags.length - 1] || this;
       if (this.opt.xmlns && tag.ns !== parent.ns) {
         // remove namespace bindings introduced by tag
         for (const p of Object.keys(tag.ns)) {