artyoms-gendiff/dist/renderers/renderPlain.js

my own gendiff app for study project

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _lodash = _interopRequireDefault(require("lodash"));

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

const stringify = value => {
  if (_lodash.default.isObject(value)) {
    return '[complex value]';
  }

  if (typeof value === 'string') {
    return `'${value}'`;
  }

  return value;
};

const getName = properties => properties.join('.');

const methods = {
  unchanged: (ancestors, {
    property
  }) => `Property '${getName([...ancestors, property])}' wasn't changed`,
  added: (ancestors, {
    property,
    currentValue: value
  }) => `Property '${getName([...ancestors, property])}' was added with value: ${stringify(value)}`,
  deleted: (ancestors, {
    property
  }) => `Property '${getName([...ancestors, property])}' was removed`,
  updated: (ancestors, {
    property,
    currentValue,
    previousValue
  }) => `Property '${getName([...ancestors, property])}' was updated. From ${stringify(previousValue)} to ${stringify(currentValue)}`,
  nested: (ancestors, {
    property,
    children
  }, proccess) => `${proccess(children, [...ancestors, property])}`
};

const toString = (proccess, ancestors, node) => methods[node.type](ancestors, node, proccess);

var _default = diff => {
  const genOutput = (arr, ancestors) => {
    const lines = arr.map(node => toString(genOutput, ancestors, node));
    return `${lines.join('\n')}`;
  };

  return genOutput(diff, []);
};

exports.default = _default;
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