Use Babel to build

Author: gajus

.babelrc

@@ -0,0 +1,24 @@
+{
+    "presets": [
+        "es2015",
+        "stage-0"
+    ],
+    "plugins": [
+        "add-module-exports"
+    ],
+    "env": {
+        "development": {
+            "plugins": [
+                "typecheck",
+                "syntax-flow",
+                "transform-flow-strip-types"
+            ]
+        },
+        "production": {
+            "plugins": [
+                "syntax-flow",
+                "transform-flow-strip-types"
+            ]
+        }
+    }
+}

package.json

@@ -26,6 +26,13 @@
     "object-unfreeze": "^1.0.2"
   },
   "devDependencies": {
+    "babel-cli": "^6.10.1",
+    "babel-plugin-add-module-exports": "^0.2.1",
+    "babel-plugin-syntax-flow": "^6.8.0",
+    "babel-plugin-transform-flow-strip-types": "^6.8.0",
+    "babel-plugin-typecheck": "^3.9.0",
+    "babel-preset-es2015": "^6.9.0",
+    "babel-preset-stage-0": "^6.5.0",
     "chai": "^3.5.0",
     "jsdom": "^8.1.0",
     "pragmatist": "^3.0.21",
@@ -38,10 +45,9 @@
     "pragmatist": "node ./node_modules/.bin/pragmatist --es5",
     "lint": "npm run pragmatist lint",
     "test": "npm run pragmatist test --type-annotations",
-    "build": "npm run pragmatist build",
+    "build": "babel ./src --out-dir ./dist",
     "watch": "npm run pragmatist watch",
     "watch-lint": "npm run pragmatist watch-lint",
-    "watch-test": "npm run pragmatist watch-test --type-annotations",
-    "watch-build": "npm run pragmatist watch-build"
+    "watch-test": "npm run pragmatist watch-test --type-annotations"
   }
 }