removed switch statement

lib/index.js

@@ -139,29 +139,11 @@ p.parseMessage =  function() {
     return false;
   }
   var messageID = this.buffer[this.offset];
-  switch(messageID) {
-  case UTF8.R:
-    return this.parseR();
-  case UTF8.S:
-    return this.parseS();
-  case UTF8.K:
-    return this.parseK();
-  case UTF8.Z:
-    return this.parseZ();
-  case UTF8.C:
-    return this.parseC();
-  case UTF8.T:
-    return this.parseT();
-  case UTF8.D:
-    return this.parseD();
-  case UTF8.E:
-    return this.parseE();
-  default:
-    throw new Error("Unsupported message ID: " + Buffer([messageID]).toString('utf8') + " (" + messageID.toString(16) + ")");
-  }
+  return this["parse"+messageID]();
 };
 
-p.parseR = function() {
+//parse 'R' message
+p.parse82 = function() {
   var type = this.buffer[this.offset++];
   var length = this.parseLength();
   if(length == 8) {
@@ -175,21 +157,24 @@ p.parseR = function() {
   throw new Error("Unknown AuthenticatinOk message type");
 };
 
-p.parseS = function(buffer) {
+//parse 'S' message
+p.parse83 = function(buffer) {
   var msg = this.parseStart('ParameterStatus');
   msg.parameterName = this.parseCString();
   msg.parameterValue = this.parseCString();
   return msg;
 };
 
-p.parseK = function() {
+//parse 'K' message
+p.parse75 = function() {
   var msg = this.parseStart('BackendKeyData');
   msg.processID = this.readInt32();
   msg.secretKey = this.readInt32();
   return msg;
 };
 
-p.parseC = function() {
+//parse 'C' message
+p.parse67 = function() {
   var msg = this.parseStart('CommandComplete');
   msg.text = this.parseCString();
   return msg;
@@ -208,13 +193,15 @@ p.readChar = function() {
   return Buffer([this.buffer[this.offset++]]).toString('utf8');
 };
 
-p.parseZ = function() {
+//parse 'Z' message
+p.parse90 = function() {
   var msg = this.parseStart('ReadyForQuery');
   msg.status = this.readChar();
   return msg;
 };
 
-p.parseT = function() {
+//parse 'T' message
+p.parse84 = function() {
   var msg = this.parseStart('RowDescription');
   msg.fieldCount = this.readInt16();
   var fields = [];
@@ -238,7 +225,8 @@ p.parseField = function() {
   return row;
 };
 
-p.parseD = function() {
+//parse 'D' message
+p.parse68 = function() {
   var msg = this.parseStart('DataRow');
   var fieldCount = this.readInt16();
   var fields = [];
@@ -250,7 +238,8 @@ p.parseD = function() {
   return msg;
 };
 
-p.parseE = function() {
+//parse 'E' message
+p.parse69 = function() {
   var msg = this.parseStart('Error');
   var fields = {};
   var fieldType = this.readString(1);