json.js 9.56 KB
/*istanbul ignore start*/'use strict';

exports.__esModule = true;
exports.jsonDiff = undefined;

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };

exports. /*istanbul ignore end*/diffJson = diffJson;
/*istanbul ignore start*/exports. /*istanbul ignore end*/canonicalize = canonicalize;

var /*istanbul ignore start*/_base = require('./base') /*istanbul ignore end*/;

/*istanbul ignore start*/
var _base2 = _interopRequireDefault(_base);

/*istanbul ignore end*/
var /*istanbul ignore start*/_line = require('./line') /*istanbul ignore end*/;

/*istanbul ignore start*/
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/*istanbul ignore end*/

var objectPrototypeToString = Object.prototype.toString;

var jsonDiff = /*istanbul ignore start*/exports. /*istanbul ignore end*/jsonDiff = new /*istanbul ignore start*/_base2.default() /*istanbul ignore end*/;
// Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
// dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
jsonDiff.useLongestToken = true;

jsonDiff.tokenize = /*istanbul ignore start*/_line.lineDiff. /*istanbul ignore end*/tokenize;
jsonDiff.castInput = function (value) {
  return typeof value === 'string' ? value : JSON.stringify(canonicalize(value), undefined, '  ');
};
jsonDiff.equals = function (left, right) {
  return (/*istanbul ignore start*/_base2.default. /*istanbul ignore end*/prototype.equals(left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'))
  );
};

function diffJson(oldObj, newObj, callback) {
  return jsonDiff.diff(oldObj, newObj, callback);
}

// This function handles the presence of circular references by bailing out when encountering an
// object that is already on the "stack" of items being processed.
function canonicalize(obj, stack, replacementStack) {
  stack = stack || [];
  replacementStack = replacementStack || [];

  var i = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;

  for (i = 0; i < stack.length; i += 1) {
    if (stack[i] === obj) {
      return replacementStack[i];
    }
  }

  var canonicalizedObj = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;

  if ('[object Array]' === objectPrototypeToString.call(obj)) {
    stack.push(obj);
    canonicalizedObj = new Array(obj.length);
    replacementStack.push(canonicalizedObj);
    for (i = 0; i < obj.length; i += 1) {
      canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack);
    }
    stack.pop();
    replacementStack.pop();
    return canonicalizedObj;
  }

  if (obj && obj.toJSON) {
    obj = obj.toJSON();
  }

  if ( /*istanbul ignore start*/(typeof /*istanbul ignore end*/obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && obj !== null) {
    stack.push(obj);
    canonicalizedObj = {};
    replacementStack.push(canonicalizedObj);
    var sortedKeys = [],
        key = /*istanbul ignore start*/void 0 /*istanbul ignore end*/;
    for (key in obj) {
      /* istanbul ignore else */
      if (obj.hasOwnProperty(key)) {
        sortedKeys.push(key);
      }
    }
    sortedKeys.sort();
    for (i = 0; i < sortedKeys.length; i += 1) {
      key = sortedKeys[i];
      canonicalizedObj[key] = canonicalize(obj[key], stack, replacementStack);
    }
    stack.pop();
    replacementStack.pop();
  } else {
    canonicalizedObj = obj;
  }
  return canonicalizedObj;
}
//# sourceMappingURL=data:application/json;base64,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