src/nodes/statements.js in prettier-0.21.0 vs src/nodes/statements.js in prettier-0.22.0

@@ -1,6 +1,7 @@
 const {
+  breakParent,
   concat,
   dedent,
   group,
   hardline,
   indent,
@@ -38,11 +39,10 @@
       parts.push(dedent(concat([hardline, path.call(print, "body", 3)])));
     }
 
     return group(concat(parts));
   },
-  embdoc: (path, _opts, _print) => concat([trim, path.getValue().body]),
   paren: (path, opts, print) => {
     if (!path.getValue().body[0]) {
       return "()";
     }
 
@@ -66,9 +66,31 @@
   },
   program: (path, opts, print) =>
     concat([join(hardline, path.map(print, "body")), hardline]),
   stmts: (path, opts, print) => {
     const stmts = path.getValue().body;
+
+    // This is a special case where we have only comments inside a statement
+    // list. In this case we want to avoid doing any kind of line number
+    // tracking and just print out the comments.
+    if (
+      stmts.length === 1 &&
+      stmts[0].type === "void_stmt" &&
+      stmts[0].comments
+    ) {
+      const comments = path.map(
+        (commentPath, index) => {
+          stmts[0].comments[index].printed = true;
+          return opts.printer.printComment(commentPath);
+        },
+        "body",
+        0,
+        "comments"
+      );
+
+      return concat([breakParent, join(hardline, comments)]);
+    }
+
     const parts = [];
     let lineNo = null;
 
     stmts.forEach((stmt, index) => {
       if (stmt.type === "void_stmt") {