node 12

babel · Feb 15, 2024 · e33d216 · e33d216
1 parent 26f3a10
commit e33d216
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Showing 2 changed files with 12 additions and 1 deletion.
diff --git a/packages/babel-preset-flow/src/index.ts b/packages/babel-preset-flow/src/index.ts
@@ -20,6 +20,16 @@ export default declarePreset((api, opts) => {
   ];
 
   if (useHermesParser) {
+    if (Number.parseInt(process.versions.node, 10) < 12) {
+      throw new Error(
+        "The Hermes parser is only supported in Node 12 and later.",
+      );
+    }
+    if (IS_STANDALONE) {
+      throw new Error(
+        "The Hermes parser is not supported in the @babel/standalone.",
+      );
+    }
     plugins.unshift("babel-plugin-syntax-hermes-parser");
   }
 

diff --git a/packages/babel-preset-flow/test/fixtures/flow-parser/hermes/options.json b/packages/babel-preset-flow/test/fixtures/flow-parser/hermes/options.json
@@ -1,3 +1,4 @@
 {
-  "presets": [["flow", { "useHermesParser": true }]]
+  "presets": [["flow", { "useHermesParser": true }]],
+  "minNodeVersion": "12.0.0"
 }