Function ReactFiberStack

code/composition/public/app.js:12693–12775

()

};

var ReactFiberStack = function () {
  var valueStack = [];

  var fiberStack = void 0;

  {
    fiberStack = [];
  }

  var index = -1;

  function createCursor(defaultValue) {
    return {
      current: defaultValue
    };
  }

  function isEmpty() {
    return index === -1;
  }

  function pop(cursor, fiber) {
    if (index < 0) {
      {
        warning(false, 'Unexpected pop.');
      }
      return;
    }

    {
      if (fiber !== fiberStack[index]) {
        warning(false, 'Unexpected Fiber popped.');
      }
    }

    cursor.current = valueStack[index];

    valueStack[index] = null;

    {
      fiberStack[index] = null;
    }

    index--;
  }

  function push(cursor, value, fiber) {
    index++;

    valueStack[index] = cursor.current;

    {
      fiberStack[index] = fiber;
    }

    cursor.current = value;
  }