chore: Update eslint to v6

Author: danez

.babelrc

@@ -11,7 +11,5 @@
     ],
     "@babel/preset-flow"
   ],
-  "plugins": [
-    "@babel/plugin-transform-runtime"
-  ]
+  "plugins": ["@babel/plugin-transform-runtime"]
 }

.eslintrc.js

@@ -2,6 +2,10 @@ module.exports = {
   parser: 'babel-eslint',
   extends: ['eslint:recommended', 'prettier'],
   plugins: ['prettier'],
+  parserOptions: {
+    ecmaVersion: 2020,
+    sourceType: "module"
+  },
   rules: {
     strict: ['error', 'never'],
     'no-shadow': 'error',

benchmark/index.js

@@ -1,4 +1,3 @@
-/* eslint-disable */
 const fs = require('fs');
 const path = require('path');
 const Table = require('cli-table');

package.json

@@ -60,8 +60,8 @@
     "benchmark": "^2.1.4",
     "cli-table": "^0.3.1",
     "cross-spawn": "^6.0.4",
-    "eslint": "^5.7.0",
-    "eslint-config-prettier": "^4.0.0",
+    "eslint": "^6.8.0",
+    "eslint-config-prettier": "^6.9.0",
     "eslint-plugin-prettier": "^3.1.1",
     "flow-bin": "^0.98.0",
     "jest": "^24.9.0",

src/utils/getPropType.js

@@ -186,15 +186,15 @@ const simplePropTypes = [
   'elementType',
 ];
 
-const propTypes = {
-  oneOf: getPropTypeOneOf,
-  oneOfType: getPropTypeOneOfType,
-  instanceOf: getPropTypeInstanceOf,
-  arrayOf: getPropTypeArrayOf,
-  objectOf: getPropTypeObjectOf,
-  shape: getPropTypeShapish.bind(null, 'shape'),
-  exact: getPropTypeShapish.bind(null, 'exact'),
-};
+const propTypes = new Map([
+  ['oneOf', getPropTypeOneOf],
+  ['oneOfType', getPropTypeOneOfType],
+  ['instanceOf', getPropTypeInstanceOf],
+  ['arrayOf', getPropTypeArrayOf],
+  ['objectOf', getPropTypeObjectOf],
+  ['shape', getPropTypeShapish.bind(null, 'shape')],
+  ['exact', getPropTypeShapish.bind(null, 'exact')],
+]);
 
 /**
  * Tries to identify the prop type by inspecting the path for known
@@ -218,8 +218,8 @@ export default function getPropType(path: NodePath): PropTypeDescriptor {
       if (simplePropTypes.includes(name)) {
         descriptor = { name };
         return true;
-      } else if (propTypes.hasOwnProperty(name) && member.argumentsPath) {
-        descriptor = propTypes[name](member.argumentsPath.get(0));
+      } else if (propTypes.has(name) && member.argumentsPath) {
+        descriptor = propTypes.get(name)(member.argumentsPath.get(0));
         return true;
       }
     }
@@ -231,9 +231,9 @@ export default function getPropType(path: NodePath): PropTypeDescriptor {
     } else if (
       t.CallExpression.check(node) &&
       t.Identifier.check(node.callee) &&
-      propTypes.hasOwnProperty(node.callee.name)
+      propTypes.has(node.callee.name)
     ) {
-      descriptor = propTypes[node.callee.name](path.get('arguments', 0));
+      descriptor = propTypes.get(node.callee.name)(path.get('arguments', 0));
     } else {
       descriptor = { name: 'custom', raw: printValue(path) };
     }