flow: Enable enums!

Following a Flow doc:
  https://flow.org/en/docs/enums/enabling-enums/#toc-enable-enums

Note that we add the `flow-enums-runtime` dependency as a production
dependency, but we don't import it anywhere. That's as requested by
the doc.

Author: chrisbobbe

.flowconfig

@@ -122,5 +122,7 @@ module.file_ext=.ios.js
 ; we're error-free!
 exact_by_default=true
 
+enums=true
+
 [version]
 ^0.162.0

babel.config.js

@@ -13,5 +13,15 @@ module.exports = {
     // @babel/reset-env, but that doesn't get used as a base plugin; see a
     // comment on that issue explaining why.
     '@babel/plugin-proposal-numeric-separator',
+
+    // Flow enums:
+    //   https://flow.org/en/docs/enums/enabling-enums/#toc-enable-enums
+    [
+      '@babel/plugin-syntax-flow',
+      // Required by 'transform-flow-enums':
+      //   https://www.npmjs.com/package/babel-plugin-transform-flow-enums
+      { enums: true }
+    ],
+    'transform-flow-enums'
   ],
 };

package.json

@@ -43,6 +43,7 @@
     "expo-screen-orientation": "~4.1.1",
     "expo-sqlite": "^10.0.0",
     "expo-web-browser": "~10.1.0",
+    "flow-enums-runtime": "^0.0.6",
     "immutable": "^4.0.0-rc.12",
     "invariant": "^2.2.4",
     "katex": "^0.11.1",
@@ -90,6 +91,7 @@
     "@rollup/plugin-node-resolve": "^13.0.4",
     "@types/react-native": "^0.67.7",
     "@vusion/webfonts-generator": "^0.8.0",
+    "babel-plugin-transform-flow-enums": "^0.0.2",
     "core-js": "^3.1.4",
     "deep-freeze": "^0.0.1",
     "eslint": "^8.15.0",

yarn.lock

@@ -212,10 +212,10 @@
   dependencies:
     "@babel/types" "^7.16.7"
 
-"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.10.4", "@babel/helper-plugin-utils@^7.12.13", "@babel/helper-plugin-utils@^7.13.0", "@babel/helper-plugin-utils@^7.14.5", "@babel/helper-plugin-utils@^7.16.7", "@babel/helper-plugin-utils@^7.17.12", "@babel/helper-plugin-utils@^7.8.0", "@babel/helper-plugin-utils@^7.8.3":
-  version "7.17.12"
-  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.17.12.tgz#86c2347da5acbf5583ba0a10aed4c9bf9da9cf96"
-  integrity sha512-JDkf04mqtN3y4iAbO1hv9U2ARpPyPL1zqyWs/2WG1pgSq9llHFjStX5jdxb84himgJm+8Ng+x0oiWF/nw/XQKA==
+"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.10.4", "@babel/helper-plugin-utils@^7.12.13", "@babel/helper-plugin-utils@^7.13.0", "@babel/helper-plugin-utils@^7.14.5", "@babel/helper-plugin-utils@^7.16.7", "@babel/helper-plugin-utils@^7.17.12", "@babel/helper-plugin-utils@^7.18.6", "@babel/helper-plugin-utils@^7.8.0", "@babel/helper-plugin-utils@^7.8.3":
+  version "7.18.9"
+  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.18.9.tgz#4b8aea3b069d8cb8a72cdfe28ddf5ceca695ef2f"
+  integrity sha512-aBXPT3bmtLryXaoJLyYPXPlSD4p1ld9aYeR+sJNOZjJJGiOpb+fKfh3NkcCu7J54nUJwCERPBExCCpyCOHnu/w==
 
 "@babel/helper-remap-async-to-generator@^7.16.8":
   version "7.16.8"
@@ -526,12 +526,12 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.8.3"
 
-"@babel/plugin-syntax-flow@^7.0.0", "@babel/plugin-syntax-flow@^7.14.5", "@babel/plugin-syntax-flow@^7.17.12", "@babel/plugin-syntax-flow@^7.2.0":
-  version "7.17.12"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-flow/-/plugin-syntax-flow-7.17.12.tgz#23d852902acd19f42923fca9d0f196984d124e73"
-  integrity sha512-B8QIgBvkIG6G2jgsOHQUist7Sm0EBLDCx8sen072IwqNuzMegZNXrYnSv77cYzA8mLDZAfQYqsLIhimiP1s2HQ==
+"@babel/plugin-syntax-flow@^7.0.0", "@babel/plugin-syntax-flow@^7.12.1", "@babel/plugin-syntax-flow@^7.14.5", "@babel/plugin-syntax-flow@^7.17.12", "@babel/plugin-syntax-flow@^7.2.0":
+  version "7.18.6"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-flow/-/plugin-syntax-flow-7.18.6.tgz#774d825256f2379d06139be0c723c4dd444f3ca1"
+  integrity sha512-LUbR+KNTBWCUAqRG9ex5Gnzu2IOkt8jRJbHHXFT9q+L9zm7M/QQbEqXyw1n1pohYvOyWC8CjeyjrSaIwiYjK7A==
   dependencies:
-    "@babel/helper-plugin-utils" "^7.17.12"
+    "@babel/helper-plugin-utils" "^7.18.6"
 
 "@babel/plugin-syntax-import-assertions@^7.17.12":
   version "7.17.12"
@@ -3897,6 +3897,13 @@ babel-plugin-syntax-trailing-function-commas@^7.0.0-beta.0:
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-trailing-function-commas/-/babel-plugin-syntax-trailing-function-commas-7.0.0-beta.0.tgz#aa213c1435e2bffeb6fca842287ef534ad05d5cf"
   integrity sha512-Xj9XuRuz3nTSbaTXWv3itLOcxyF4oPD8douBBmj7U9BBC6nEBYfyOJYQMf/8PJAFotC62UY5dFfIGEPr7WswzQ==
 
+babel-plugin-transform-flow-enums@^0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-transform-flow-enums/-/babel-plugin-transform-flow-enums-0.0.2.tgz#d1d0cc9bdc799c850ca110d0ddc9f21b9ec3ef25"
+  integrity sha512-g4aaCrDDOsWjbm0PUUeVnkcVd6AKJsVc/MbnPhEotEpkeJQP6b8nzewohQi7+QS8UyPehOhGWn0nOwjvWpmMvQ==
+  dependencies:
+    "@babel/plugin-syntax-flow" "^7.12.1"
+
 babel-preset-current-node-syntax@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/babel-preset-current-node-syntax/-/babel-preset-current-node-syntax-1.0.1.tgz#b4399239b89b2a011f9ddbe3e4f401fc40cff73b"
@@ -7421,6 +7428,11 @@ flow-coverage-report@^0.8.0:
     terminal-table "^0.0.12"
     yargs "^16.0.3"
 
+flow-enums-runtime@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/flow-enums-runtime/-/flow-enums-runtime-0.0.6.tgz#5bb0cd1b0a3e471330f4d109039b7eba5cb3e787"
+  integrity sha512-3PYnM29RFXwvAN6Pc/scUfkI7RwhQ/xqyLUyPNlXUp9S40zI8nup9tUSrTLSVnWGBN38FNiGWbwZOB6uR4OGdw==
+
 flow-parser@0.*:
   version "0.180.0"
   resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.180.0.tgz#05d49a88715ceca0457607499a018e2bf5908d72"