define(['exports', 'module', '../exception'], function (exports, module, _exception) {
  'use strict';

  // istanbul ignore next

  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

  var _Exception = _interopRequireDefault(_exception);

  module.exports = function (instance) {
    instance.registerHelper('helperMissing', function () /* [args, ]options */{
      if (arguments.length === 1) {
        // A missing field in a {{foo}} construct.
        return undefined;
      } else {
        // Someone is actually trying to call something, blow up.
        throw new _Exception['default']('Missing helper: "' + arguments[arguments.length - 1].name + '"');
      }
    });
  };
});
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