Some small parser changes

The small_to_string was actually quite slow

Author: Ruben Bridgewater

index.js

@@ -271,9 +271,7 @@ RedisClient.prototype.init_parser = function () {
 
     // return_buffers sends back Buffers from parser to callback. detect_buffers sends back Buffers from parser, but
     // converts to Strings if the input arguments are not Buffers.
-    this.reply_parser = new this.parser_module.Parser({
-        return_buffers: self.options.return_buffers || self.options.detect_buffers || false
-    });
+    this.reply_parser = new this.parser_module.Parser(self.options.return_buffers || self.options.detect_buffers || false);
     // Important: Only send results / errors async.
     // That way the result / error won't stay in a try catch block and catch user things
     this.reply_parser.send_error = function (data) {

lib/parser/hiredis.js

@@ -2,19 +2,15 @@
 
 var hiredis = require("hiredis");
 
-exports.name = "hiredis";
-
-function HiredisReplyParser(options) {
+function HiredisReplyParser(return_buffers) {
     this.name = exports.name;
-    this.options = options;
+    this.return_buffers = return_buffers;
     this.reset();
 }
 
-exports.Parser = HiredisReplyParser;
-
 HiredisReplyParser.prototype.reset = function () {
     this.reader = new hiredis.Reader({
-        return_buffers: this.options.return_buffers || false
+        return_buffers: this.return_buffers || false
     });
 };
 
@@ -35,3 +31,6 @@ HiredisReplyParser.prototype.execute = function (data) {
         }
     }
 };
+
+exports.Parser = HiredisReplyParser;
+exports.name = "hiredis";

lib/parser/javascript.js

@@ -7,37 +7,21 @@ function Packet(type, size) {
     this.size = +size;
 }
 
-exports.name = "javascript";
-
-function ReplyParser(options) {
+function ReplyParser(return_buffers) {
     this.name = exports.name;
-    this.options = options;
+    this.return_buffers = return_buffers;
 
     this._buffer            = null;
     this._offset            = 0;
     this._encoding          = "utf-8";
-    this._reply_type        = null;
 }
 
-exports.Parser = ReplyParser;
-
 function IncompleteReadBuffer(message) {
     this.name = "IncompleteReadBuffer";
     this.message = message;
 }
 util.inherits(IncompleteReadBuffer, Error);
 
-// Buffer.toString() is quite slow for small strings
-function small_toString(buf, start, end) {
-    var tmp = "", i;
-
-    for (i = start; i < end; i++) {
-        tmp += String.fromCharCode(buf[i]);
-    }
-
-    return tmp;
-}
-
 ReplyParser.prototype._parseResult = function (type) {
     var start, end, offset, packetHeader;
 
@@ -56,10 +40,8 @@ ReplyParser.prototype._parseResult = function (type) {
 
         if (type === 45) {
             return new Error(this._buffer.toString(this._encoding, start, end));
-        } else if (this.options.return_buffers) {
+        } else if (this.return_buffers) {
             return this._buffer.slice(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) { // :
@@ -100,7 +82,7 @@ ReplyParser.prototype._parseResult = function (type) {
             throw new IncompleteReadBuffer("Wait for more data.");
         }
 
-        if (this.options.return_buffers) {
+        if (this.return_buffers) {
             return this._buffer.slice(start, end);
         }
         return this._buffer.toString(this._encoding, start, end);
@@ -234,3 +216,6 @@ ReplyParser.prototype._packetEndOffset = function () {
 ReplyParser.prototype._bytesRemaining = function () {
     return (this._buffer.length - this._offset) < 0 ? 0 : (this._buffer.length - this._offset);
 };
+
+exports.Parser = ReplyParser;
+exports.name = "javascript";