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import WeakMap from './_WeakMap.js';

var metaMap = WeakMap && new WeakMap;

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import getNative from './_getNative.js';

import root from './_root.js';

var WeakMap = getNative(root, 'WeakMap');

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function noop() {}

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import metaMap from './_metaMap.js';

import noop from './noop.js';

var getData = !metaMap ? noop : function(func) {

  return metaMap.get(func);

};

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import identity from './identity.js';

import metaMap from './_metaMap.js';

var baseSetData = !metaMap ? identity : function(func, data) {

  metaMap.set(func, data);

  return func;

};

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var HOT_COUNT = 800,

    HOT_SPAN = 16;

function shortOut(func) {

  var count = 0,

      lastCalled = 0;

  return function() {

    var stamp = nativeNow(),

        remaining = HOT_SPAN - (stamp - lastCalled);

    lastCalled = stamp;

    if (remaining > 0) {

      if (++count >= HOT_COUNT) {

        return arguments[0];

      }

    } else {

      count = 0;

    }

    return func.apply(undefined, arguments);

  };

}

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import baseSetData from './_baseSetData.js';

import shortOut from './_shortOut.js';

var setData = shortOut(baseSetData);