update

node_modules/flatstr/alt-benchmark.js

@@ -0,0 +1,234 @@
+'use strict'
+var nul = process.platform === 'win32' ? '\\\\.\\NUL' : '/dev/null'
+var bench = require('fastbench')
+var stream = require('fs').createWriteStream(nul)
+var alt0 = require('./')
+var largeStr = JSON.stringify(require('./package.json'))
+largeStr += largeStr
+largeStr += largeStr
+
+var run = bench([
+  function alt0ManySmallConcats (cb) {
+    stream.write(alt0(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt1ManySmallConcats (cb) {
+    stream.write(alt1(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt2ManySmallConcats (cb) {
+    stream.write(alt2(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt3ManySmallConcats (cb) {
+    stream.write(alt3(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt4ManySmallConcats (cb) {
+    stream.write(alt4(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt5ManySmallConcats (cb) {
+    stream.write(alt5(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt6ManySmallConcats (cb) {
+    stream.write(alt6(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt7ManySmallConcats (cb) {
+    stream.write(alt7(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt8ManySmallConcats (cb) {
+    stream.write(alt8(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt9ManySmallConcats (cb) {
+    stream.write(alt9(makeStr('a', 200)))
+    setImmediate(cb)
+  },
+  function alt0SeveralLargeConcats (cb) {
+    stream.write(alt0(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt1SeveralLargeConcats (cb) {
+    stream.write(alt1(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt2SeveralLargeConcats (cb) {
+    stream.write(alt2(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt3SeveralLargeConcats (cb) {
+    stream.write(alt3(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt4SeveralLargeConcats (cb) {
+    stream.write(alt4(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt5SeveralLargeConcats (cb) {
+    stream.write(alt5(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt6SeveralLargeConcats (cb) {
+    stream.write(alt6(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt7SeveralLargeConcats (cb) {
+    stream.write(alt7(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt8SeveralLargeConcats (cb) {
+    stream.write(alt8(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt9SeveralLargeConcats (cb) {
+    stream.write(alt9(makeStr(largeStr, 10)))
+    setImmediate(cb)
+  },
+  function alt0ExponentialSmallConcats (cb) {
+    stream.write(alt0(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt1ExponentialSmallConcats (cb) {
+    stream.write(alt1(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt2ExponentialSmallConcats (cb) {
+    stream.write(alt2(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt3ExponentialSmallConcats (cb) {
+    stream.write(alt3(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt4ExponentialSmallConcats (cb) {
+    stream.write(alt4(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt5ExponentialSmallConcats (cb) {
+    stream.write(alt5(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt6ExponentialSmallConcats (cb) {
+    stream.write(alt6(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt7ExponentialSmallConcats (cb) {
+    stream.write(alt7(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt8ExponentialSmallConcats (cb) {
+    stream.write(alt8(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt9ExponentialSmallConcats (cb) {
+    stream.write(alt9(makeExpoStr('a', 12)))
+    setImmediate(cb)
+  },
+  function alt0ExponentialLargeConcats (cb) {
+    stream.write(alt0(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt1ExponentialLargeConcats (cb) {
+    stream.write(alt1(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt2ExponentialLargeConcats (cb) {
+    stream.write(alt2(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt3ExponentialLargeConcats (cb) {
+    stream.write(alt3(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt4ExponentialLargeConcats (cb) {
+    stream.write(alt4(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt5ExponentialLargeConcats (cb) {
+    stream.write(alt5(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt6ExponentialLargeConcats (cb) {
+    stream.write(alt6(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt7ExponentialLargeConcats (cb) {
+    stream.write(alt7(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt8ExponentialLargeConcats (cb) {
+    stream.write(alt8(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  },
+  function alt9ExponentialLargeConcats (cb) {
+    stream.write(alt9(makeExpoStr(largeStr, 7)))
+    setImmediate(cb)
+  }
+], 10000)
+
+run(run)
+
+var rx = /()/
+function alt1 (s) {
+  rx.test(s)
+  return s
+}
+function alt2 (s) {
+  rx.exec(s)
+  return s
+}
+
+function alt3 (s) {
+  s | 0
+  return s
+}
+
+function alt4 (s) {
+  ~s
+  return s
+}
+
+function alt5 (s) {
+  escape(s)
+  return s
+}
+
+function alt6 (s) {
+  unescape(s)
+  return s
+}
+
+function alt7 (s) {
+  parseInt(s, 10)
+  return s
+}
+
+function alt8 (s) {
+  parseFloat(s)
+  return s
+}
+
+function alt9 (s) {
+  alt9[s] = null
+  return s
+}
+
+function makeStr (str, concats) {
+  var s = ''
+  while (concats--) {
+    s += str
+  }
+  return s
+}
+
+function makeExpoStr (str, concats) {
+  var s = str
+  while (concats--) {
+    s += s
+  }
+  return s
+}