fix: disallow line break between async and property (#11947)

babel · Aug 10, 2020 · 3bff1ce · 3bff1ce
1 parent 008fe25
commit 3bff1ce
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Showing 4 changed files with 13 additions and 0 deletions.
diff --git a/packages/babel-generator/src/generators/methods.js b/packages/babel-generator/src/generators/methods.js
@@ -37,6 +37,8 @@ export function _methodHead(node: Object) {
   }
 
   if (node.async) {
+    // ensure `async` is in the same line with property name
+    this._catchUp("start", key.loc);
     this.word("async");
     this.space();
   }

diff --git a/packages/babel-generator/test/fixtures/regression/11870/input.js b/packages/babel-generator/test/fixtures/regression/11870/input.js
@@ -0,0 +1,4 @@
+class Test {
+  @TestDecorator
+  async decorateMe() {}
+}
diff --git a/packages/babel-generator/test/fixtures/regression/11870/options.json b/packages/babel-generator/test/fixtures/regression/11870/options.json
@@ -0,0 +1,4 @@
+{
+  "retainLines": true,
+  "plugins": [["decorators", { "decoratorsBeforeExport": true }]]
+}
diff --git a/packages/babel-generator/test/fixtures/regression/11870/output.js b/packages/babel-generator/test/fixtures/regression/11870/output.js
@@ -0,0 +1,3 @@
+class Test {
+  @TestDecorator
+  async decorateMe() {}}