Allow block-less arrow function expression to break (fixes #61)

prettier · Jan 10, 2017 · 321bd6a · 321bd6a
1 parent 4825e56
commit 321bd6a
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Showing 2 changed files with 9 additions and 5 deletions.
diff --git a/src/printer.js b/src/printer.js
@@ -334,9 +334,14 @@ function genericPrintNoParens(path, options, print) {
       ])));
     }
 
-    parts.push(" => ", path.call(print, "body"));
+    parts.push(" => ");
 
-    return concat(parts);
+    return conditionalGroup([
+      concat([ concat(parts), path.call(print, "body") ]),
+      concat([ concat(parts),
+               indent(options.tabWidth,
+                      concat([line, path.call(print, "body")]))])
+    ])
   case "MethodDefinition":
     if (n.static) {
       parts.push("static ");

diff --git a/tests/predicates-parsing/__snapshots__/jsfmt.spec.js.snap b/tests/predicates-parsing/__snapshots__/jsfmt.spec.js.snap
@@ -109,9 +109,8 @@ var a1 = (x: mixed): %checks => x !== null;
 
 (x): %checks => x !== null;
 
-const insert_a_really_big_predicated_arrow_function_name_here = (
-  x
-): %checks => x !== null;
+const insert_a_really_big_predicated_arrow_function_name_here = (x): %checks => 
+  x !== null;
 
 declare var x;
 x;