querystring: improve parse() performance

PR-URL: https://github.com/nodejs/node/pull/10874
Reviewed-By: James M Snell <jasnell@gmail.com>

benchmark/querystring/querystring-parse.js

@@ -3,35 +3,26 @@ var common = require('../common.js');
 var querystring = require('querystring');
 var v8 = require('v8');
 
-var types = [
-  'noencode',
-  'multicharsep',
-  'encodemany',
-  'encodelast',
-  'multivalue',
-  'multivaluemany',
-  'manypairs'
-];
+var inputs = {
+  noencode: 'foo=bar&baz=quux&xyzzy=thud',
+  multicharsep: 'foo=bar&&&&&&&&&&baz=quux&&&&&&&&&&xyzzy=thud',
+  encodefake: 'foo=%©ar&baz=%A©uux&xyzzy=%©ud',
+  encodemany: '%66%6F%6F=bar&%62%61%7A=quux&xyzzy=%74h%75d',
+  encodelast: 'foo=bar&baz=quux&xyzzy=thu%64',
+  multivalue: 'foo=bar&foo=baz&foo=quux&quuy=quuz',
+  multivaluemany: 'foo=bar&foo=baz&foo=quux&quuy=quuz&foo=abc&foo=def&' +
+                  'foo=ghi&foo=jkl&foo=mno&foo=pqr&foo=stu&foo=vwxyz',
+  manypairs: 'a&b&c&d&e&f&g&h&i&j&k&l&m&n&o&p&q&r&s&t&u&v&w&x&y&z'
+};
 
 var bench = common.createBenchmark(main, {
-  type: types,
+  type: Object.keys(inputs),
   n: [1e6],
 });
 
 function main(conf) {
   var type = conf.type;
   var n = conf.n | 0;
-
-  var inputs = {
-    noencode: 'foo=bar&baz=quux&xyzzy=thud',
-    multicharsep: 'foo=bar&&&&&&&&&&baz=quux&&&&&&&&&&xyzzy=thud',
-    encodemany: '%66%6F%6F=bar&%62%61%7A=quux&xyzzy=%74h%75d',
-    encodelast: 'foo=bar&baz=quux&xyzzy=thu%64',
-    multivalue: 'foo=bar&foo=baz&foo=quux&quuy=quuz',
-    multivaluemany: 'foo=bar&foo=baz&foo=quux&quuy=quuz&foo=abc&foo=def&' +
-                    'foo=ghi&foo=jkl&foo=mno&foo=pqr&foo=stu&foo=vwxyz',
-    manypairs: 'a&b&c&d&e&f&g&h&i&j&k&l&m&n&o&p&q&r&s&t&u&v&w&x&y&z'
-  };
   var input = inputs[type];
 
   // Force-optimize querystring.parse() so that the benchmark doesn't get