flow like the river

BACK_BACK/node_modules/parcel-bundler/lib/assets/ReasonAsset.js

@@ -0,0 +1,43 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+
+var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
+
+const Asset = require('../Asset');
+
+const fs = require('@parcel/fs');
+
+const localRequire = require('../utils/localRequire');
+
+class ReasonAsset extends Asset {
+  constructor(name, options) {
+    super(name, options);
+    this.type = 'js';
+  }
+
+  generate() {
+    var _this = this;
+
+    return (0, _asyncToGenerator2.default)(function* () {
+      const bsb = yield localRequire('bsb-js', _this.name); // This runs BuckleScript - the Reason to JS compiler.
+      // Other Asset types use `localRequire` but the `bsb-js` package already
+      // does that internally. This should also take care of error handling in
+      // the Reason compilation process.
+
+      if (process.env.NODE_ENV !== 'test') {
+        yield bsb.runBuild();
+      } // This is a simplified use-case for Reason - it only loads the recommended
+      // BuckleScript configuration to simplify the file processing.
+
+
+      const outputFile = _this.name.replace(/\.(re|ml)$/, '.bs.js');
+
+      const outputContent = yield fs.readFile(outputFile);
+      return outputContent.toString();
+    })();
+  }
+
+}
+
+module.exports = ReasonAsset;