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import _objectAssign from './_objectAssign';import _identity from './_identity';import _isArrayLike from './_isArrayLike';import _isTransformer from './_isTransformer';import objOf from '../objOf';

var _stepCatArray = {  '@@transducer/init': Array,  '@@transducer/step': function(xs, x) {    xs.push(x);    return xs;  },  '@@transducer/result': _identity};var _stepCatString = {  '@@transducer/init': String,  '@@transducer/step': function(a, b) { return a + b; },  '@@transducer/result': _identity};var _stepCatObject = {  '@@transducer/init': Object,  '@@transducer/step': function(result, input) {    return _objectAssign(      result,      _isArrayLike(input) ? objOf(input[0], input[1]) : input    );  },  '@@transducer/result': _identity};
export default function _stepCat(obj) {  if (_isTransformer(obj)) {    return obj;  }  if (_isArrayLike(obj)) {    return _stepCatArray;  }  if (typeof obj === 'string') {    return _stepCatString;  }  if (typeof obj === 'object') {    return _stepCatObject;  }  throw new Error('Cannot create transformer for ' + obj);}