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

2017-04-13 09:10:08 -05:00 · 2017-04-13 09:10:08 -05:00 · 4d9edec4e1
parent 4dfe92a76b
commit 4d9edec4e1
2 changed files with 6 additions and 3 deletions
--- 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" &&
--- 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"]);