feat: rewrite from scratch

- `provideState + injectState` have been replaced by `withStore`
- `withStore` creates a new component from a store definition and a render function
- no inheritance, use [React's context](https://reactjs.org/docs/context.html) if necessary
- effects can no longer return a reducer, mutate `this.state` instead
- all objects (`store`, `state`, `effects`) are sealed to prevent incorrect mutations

Author: julien-f

.babelrc.js

@@ -8,23 +8,29 @@ const __PROD__ = NODE_ENV === "production";
 const __TEST__ = NODE_ENV === "test";
 
 const configs = {
-  "@babel/plugin-proposal-decorators": {
-    legacy: true,
+  "@babel/plugin-proposal-pipeline-operator": {
+    proposal: "minimal",
   },
   "@babel/preset-env"(pkg) {
     return {
       debug: !__TEST__,
       loose: true,
       shippedProposals: true,
       targets: (() => {
+        const targets = {};
+        const browers = pkg.browserslist;
+        if (browers !== undefined) {
+          targets.browsers = browers;
+        }
         let node = (pkg.engines || {}).node;
         if (node !== undefined) {
           const trimChars = "^=>~";
           while (trimChars.includes(node[0])) {
             node = node.slice(1);
           }
-          return { node: node };
+          targets.node = node;
         }
+        return { browsers: pkg.browserslist, node };
       })(),
       useBuiltIns: "@babel/polyfill" in (pkg.dependencies || {}) && "usage",
     };

.eslintrc.js

@@ -3,6 +3,8 @@ module.exports = {
     // standard configuration
     "standard",
 
+    "plugin:compat/recommended",
+
     // https://github.com/mysticatea/eslint-plugin-node#-rules
     "plugin:node/recommended",
 
@@ -11,8 +13,6 @@ module.exports = {
     "prettier/standard",
   ],
 
-  parser: "babel-eslint",
-
   rules: {
     // prefer let/const over var
     "no-var": "error",
@@ -29,4 +29,8 @@ module.exports = {
     // uncomment if you are using a builder like Babel
     "node/no-unsupported-features/es-syntax": "off",
   },
+
+  settings: {
+    polyfills: ["promises"],
+  },
 };