Fix trailing comma for rest element in Babylon (#1230)

prettier · Apr 13, 2017 · 4d9edec · 4d9edec
1 parent 4dfe92a
commit 4d9edec
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Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/src/printer.js b/src/printer.js
@@ -706,8 +706,11 @@ function genericPrintNoParens(path, options, print, args) {
       });
 
       const lastElem = util.getLast(n[propertiesField]);
-      const canHaveTrailingComma = !(lastElem &&
-        lastElem.type === "RestProperty");
+
+      const canHaveTrailingComma = !(
+        lastElem &&
+        (lastElem.type === "RestProperty" || lastElem.type === "RestElement")
+      );
 
       const shouldBreak =
         n.type !== "ObjectPattern" &&

diff --git a/tests/rest/jsfmt.spec.js b/tests/rest/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, { trailingComma: "all" });
+run_spec(__dirname, { trailingComma: "all" }, ["babylon"]);