fix: upgrade to babel 7; dump uglify for terser; upgrade to jest 24

web3.js/.babelrc

@@ -1,24 +1,27 @@
 {
   "presets": [
-    [ "env", { "modules": false } ],
+    [ "@babel/preset-env", { "modules": false } ],
-    "stage-0",
+    "@babel/preset-flow",
-    "flow"
+  ],
+
+  "plugins": [
+    ["module-resolver", {
+      "root": ["./src"],
+    }],
+    "@babel/transform-runtime",
+    "@babel/plugin-proposal-class-properties",
+    "@babel/plugin-proposal-function-bind",
   ],
 
   "env": {
     "test": {
+      "plugins": [
+        "@babel/transform-runtime",
+      ],
       "presets": [
-        "env",
+        "@babel/preset-env",
-        "stage-0",
+        "@babel/preset-flow",
-        "flow"
+      ],
-      ]
+    },
-    }
   },
-
-  "plugins": [
-    ["module-resolver", {
-      "root": ["./src"]
-    }],
-    "transform-runtime"
-  ]
 }

web3.js/package.json

@@ -47,7 +47,7 @@
     "doc": "set -ex; esdoc; node -p '\"\\nDocumentation coverage: \" + require(\"./doc/coverage.json\").coverage'",
     "doc:watch": "watch 'npm run doc' . --wait=1 --ignoreDirectoryPattern=/doc/",
     "examples": "set -ex; for example in examples/*.js; do node $example; done",
-    "flow": "set -ex; flow stop; flow-typed install jest@22; flow",
+    "flow": "set -ex; flow stop; flow-typed install jest@24; flow",
     "flow:stop": "flow stop",
     "flow:watch": "flow stop; watch 'flow' . --wait=1 --ignoreDirectoryPattern=/doc/",
     "install": "npm run bpf-sdk:install",
@@ -68,7 +68,7 @@
     "test:watch": "cross-env NODE_ENV=test jest --watch --useStderr"
   },
   "dependencies": {
-    "babel-runtime": "^6.26.0",
+    "@babel/runtime": "^7.3.1",
     "bn.js": "^4.11.8",
     "bs58": "^4.0.1",
     "buffer-layout": "^1.2.0",
@@ -82,13 +82,14 @@
     "ws": "^6.1.0"
   },
   "devDependencies": {
-    "babel-core": "6.26.3",
+    "@babel/core": "^7.3.3",
+    "@babel/plugin-proposal-class-properties": "^7.3.3",
+    "@babel/plugin-proposal-function-bind": "^7.2.0",
+    "@babel/plugin-transform-runtime": "^7.2.0",
+    "@babel/preset-env": "^7.3.1",
+    "@babel/preset-flow": "^7.0.0",
     "babel-eslint": "10.0.1",
     "babel-plugin-module-resolver": "3.2.0",
-    "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "1.7.0",
-    "babel-preset-flow": "6.23.0",
-    "babel-preset-stage-0": "6.24.1",
     "codecov": "^3.0.4",
     "cross-env": "5.2.0",
     "elfy": "^0.1.0",
@@ -106,19 +107,19 @@
     "flow-bin": "0.93.0",
     "flow-typed": "2.5.1",
     "fs-file-tree": "1.0.7",
-    "jest": "23.6.0",
+    "jest": "24.1.0",
     "marked": "^0.6.0",
     "prettier": "^1.14.3",
     "rimraf": "2.6.3",
     "rollup": "1.2.1",
-    "rollup-plugin-babel": "3.0.7",
+    "rollup-plugin-babel": "^4.3.2",
     "rollup-plugin-commonjs": "9.2.0",
     "rollup-plugin-json": "^3.0.0",
     "rollup-plugin-node-builtins": "^2.1.2",
     "rollup-plugin-node-globals": "^1.2.1",
     "rollup-plugin-node-resolve": "4.0.0",
     "rollup-plugin-replace": "2.1.0",
-    "rollup-plugin-uglify": "3.0.0",
+    "rollup-plugin-terser": "^4.0.4",
     "semantic-release": "^15.9.16",
     "watch": "^1.0.2"
   }

web3.js/rollup.config.js

@@ -5,7 +5,7 @@ import globals from 'rollup-plugin-node-globals';
 import json from 'rollup-plugin-json';
 import nodeResolve from 'rollup-plugin-node-resolve';
 import replace from 'rollup-plugin-replace';
-import uglify from 'rollup-plugin-uglify';
+import {terser} from 'rollup-plugin-terser';
 
 const env = process.env.NODE_ENV;
 
@@ -25,15 +25,6 @@ function generateConfig(configType) {
     ],
   };
 
-  if (env === 'production') {
-    config.plugins.push(
-      uglify({
-        mangle: false,
-        compress: false,
-      }),
-    );
-  }
-
   switch (configType) {
     case 'browser':
       config.output = [
@@ -51,6 +42,17 @@ function generateConfig(configType) {
           browser: true,
         }),
       );
+
+      if (env === 'production') {
+        config.plugins.push(
+          terser({
+            mangle: false,
+            compress: false,
+            sourcemap: true,
+          }),
+        );
+      }
+
       break;
     case 'node':
       config.output = [
@@ -71,21 +73,23 @@ function generateConfig(configType) {
       // maintained.
       config.external = [
         'assert',
-        'babel-runtime/core-js/get-iterator',
+        '@babel/runtime/core-js/get-iterator',
-        'babel-runtime/core-js/json/stringify',
+        '@babel/runtime/core-js/json/stringify',
-        'babel-runtime/core-js/object/assign',
+        '@babel/runtime/core-js/object/assign',
-        'babel-runtime/core-js/object/get-prototype-of',
+        '@babel/runtime/core-js/object/get-prototype-of',
-        'babel-runtime/core-js/object/keys',
+        '@babel/runtime/core-js/object/keys',
-        'babel-runtime/core-js/promise',
+        '@babel/runtime/core-js/promise',
-        'babel-runtime/helpers/asyncToGenerator',
+        '@babel/runtime/helpers/asyncToGenerator',
-        'babel-runtime/helpers/classCallCheck',
+        '@babel/runtime/helpers/classCallCheck',
-        'babel-runtime/helpers/createClass',
+        '@babel/runtime/helpers/createClass',
-        'babel-runtime/helpers/get',
+        '@babel/runtime/helpers/defineProperty',
-        'babel-runtime/helpers/inherits',
+        '@babel/runtime/helpers/get',
-        'babel-runtime/helpers/possibleConstructorReturn',
+        '@babel/runtime/helpers/getPrototypeOf',
-        'babel-runtime/helpers/toConsumableArray',
+        '@babel/runtime/helpers/inherits',
-        'babel-runtime/helpers/typeof',
+        '@babel/runtime/helpers/possibleConstructorReturn',
-        'babel-runtime/regenerator',
+        '@babel/runtime/helpers/toConsumableArray',
+        '@babel/runtime/helpers/typeof',
+        '@babel/runtime/regenerator',
         'bn.js',
         'bs58',
         'buffer-layout',