Remove dead code from js parser

lib/parser/javascript.js

@@ -55,19 +55,13 @@ ReplyParser.prototype._parseResult = function (type) {
         }
 
         if (type === 45) {
-            var result = this._buffer.toString(this._encoding, start, end);
-            return new Error(result);
-        }
-
-        if (this.options.return_buffers) {
+            return new Error(this._buffer.toString(this._encoding, start, end));
+        } else if (this.options.return_buffers) {
             return this._buffer.slice(start, end);
-        } else {
-            if (end - start < 65536) { // completely arbitrary
-                return small_toString(this._buffer, start, end);
-            } else {
-                return this._buffer.toString(this._encoding, start, end);
-            }
+        } else if (end - start < 65536) { // completely arbitrary
+            return small_toString(this._buffer, start, end);
         }
+        return this._buffer.toString(this._encoding, start, end);
     } else if (type === 58) { // :
         // up to the delimiter
         end = this._packetEndOffset() - 1;
@@ -92,7 +86,7 @@ ReplyParser.prototype._parseResult = function (type) {
 
         // packets with a size of -1 are considered null
         if (packetHeader.size === -1) {
-            return undefined;
+            return null;
         }
 
         end = this._offset + packetHeader.size;
@@ -108,10 +102,9 @@ ReplyParser.prototype._parseResult = function (type) {
 
         if (this.options.return_buffers) {
             return this._buffer.slice(start, end);
-        } else {
-            return this._buffer.toString(this._encoding, start, end);
         }
-    } else if (type === 42) { // *
+        return this._buffer.toString(this._encoding, start, end);
+    } else { // *
         offset = this._offset;
         packetHeader = new Packet(type, this.parseHeader());
 
@@ -136,9 +129,6 @@ ReplyParser.prototype._parseResult = function (type) {
                 throw new IncompleteReadBuffer("Wait for more data.");
             }
             res = this._parseResult(ntype);
-            if (res === undefined) {
-                res = null;
-            }
             reply.push(res);
         }
 
@@ -176,18 +166,8 @@ ReplyParser.prototype.execute = function (buffer) {
             } else if (type === 36) { // $
                 ret = this._parseResult(type);
 
-                if (ret === null) {
-                    break;
-                }
-
-                // check the state for what is the result of
-                // a -1, set it back up for a null reply
-                if (ret === undefined) {
-                    ret = null;
-                }
-
                 this.send_reply(ret);
-            } else if (type === 42) { // *
+            } else if (type === 42) { // 42 *
                 // set a rewind point. if a failure occurs,
                 // wait for the next execute()/append() and try again
                 offset = this._offset - 1;
@@ -199,9 +179,6 @@ ReplyParser.prototype.execute = function (buffer) {
         } catch (err) {
             // catch the error (not enough data), rewind, and wait
             // for the next packet to appear
-            if (! (err instanceof IncompleteReadBuffer)) {
-              throw err;
-            }
             this._offset = offset;
             break;
         }