Close #333 PR: Upgrade to Babel 6. Fixes #221, Fixes #148, Fixes #148

.travis.yml

@@ -3,5 +3,7 @@ node_js:
   - 'stable'
   - '0.12'
   - '0.10'
+before_install:
+  - 'npm i -g npm@latest'
 after_success:
   - '[ -z "$COVERALLS_REPO_TOKEN" ] && tap --coverage-report=text-lcov | ./node_modules/.bin/coveralls'

lib/babel.js

@@ -39,7 +39,6 @@ sourceMapSupport.install({
 var createEspowerPlugin = require('babel-plugin-espower/create');
 var requireFromString = require('require-from-string');
 var loudRejection = require('loud-rejection/api')(process);
-var hasGenerator = require('has-generator');
 var serializeError = require('serialize-error');
 var babel = require('babel-core');
 var send = require('./send');
@@ -53,11 +52,9 @@ var powerAssert = createEspowerPlugin(babel, {
 
 // if generators are not supported, use regenerator
 var options = {
-	blacklist: hasGenerator ? ['regenerator'] : [],
-	optional: hasGenerator ? ['asyncToGenerator', 'runtime'] : ['runtime'],
-	plugins: [powerAssert],
-	sourceMaps: true,
-	inputSourceMap: null
+	presets: ['stage-2', 'es2015'],
+	plugins: [powerAssert, 'transform-runtime'],
+	sourceMaps: true
 };
 
 // check if test files required ava and show error, when they didn't

package.json

@@ -81,9 +81,12 @@
     "arr-flatten": "^1.0.1",
     "arrify": "^1.0.0",
     "ava-init": "^0.1.0",
-    "babel-core": "^5.8.23",
-    "babel-plugin-espower": "^1.1.0",
-    "babel-runtime": "^5.8.29",
+    "babel-core": "^6.3.17",
+    "babel-plugin-espower": "^2.0.0",
+    "babel-plugin-transform-runtime": "^6.3.13",
+    "babel-preset-es2015": "^6.3.13",
+    "babel-preset-stage-2": "^6.3.13",
+    "babel-runtime": "^6.3.19",
     "bluebird": "^3.0.0",
     "chalk": "^1.0.0",
     "co-with-promise": "^4.6.0",