[Refactor] reduce usage of lodash

dist/acorn-umd/acorn-umd.js

@@ -3,6 +3,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
+var object_assign_1 = __importDefault(require("object.assign"));
 var lodash_1 = require("lodash");
 var estraverse_1 = __importDefault(require("estraverse"));
 var Node_1 = __importDefault(require("./Node"));
@@ -164,7 +165,7 @@ function findAMD(ast) {
     });
 }
 function default_1(ast, options) {
-    options = lodash_1.assign({
+    options = object_assign_1.default({
         cjs: true,
         // TODO
         amd: false,

dist/promise-ripple.js

@@ -1,13 +1,14 @@
-var _ = require('lodash');
 var Promise = require('bluebird');
+var values = require('object.values');
+var entries = require('object.entries');
 function promiseRipple(start, props) {
-    props = (props) ? props : start;
-    start = (props) ? start : {};
-    props = _.mapValues(props, function (prop, key) {
+    props = props || start;
+    start = props ? start : {};
+    entries(props).forEach(function (_a) {
+        var key = _a[0], prop = _a[1];
         prop.key = key;
-        return prop;
     });
-    return Promise.reduce(_.values(props), function (result, action) {
+    return Promise.reduce(values(props), function (result, action) {
         if (typeof action !== 'function')
             throw new Error('property values must be functions');
         return Promise.resolve(action(start)).then(function (value) {

package.json

@@ -29,6 +29,9 @@
     "fs-extra": "reggi/node-fs-extra#enhanced",
     "lodash": "^4.17.15",
     "markdown-it": "^5.1.0",
+    "object.assign": "^4.1.0",
+    "object.entries": "^1.1.1",
+    "object.values": "^1.1.1",
     "os-tmpdir": "^1.0.2",
     "yargs": "^3.32.0"
   },

src/acorn-umd/acorn-umd.ts

@@ -1,4 +1,5 @@
-import {assign, clone, find, filter, matches, map, reject, result, sortBy, take, zip} from 'lodash';
+import assign from 'object.assign';
+import {clone, find, filter, matches, map, reject, result, sortBy, take, zip} from 'lodash';
 import estraverse from 'estraverse';
 import Node from './Node';
 import ImportNode from './ImportNode';