From f048ad309405959e276cca898a282e55f3b433ba Mon Sep 17 00:00:00 2001
From: Joseph Frazier <1212jtraceur@gmail.com>
Date: Sun, 14 May 2017 17:45:33 -0400
Subject: [PATCH] (Babylon) Allow `return` outside function (#1608)

This makes it easier to format code snippets including a `return`
statement, without having to format the entire function. For example,
given the following code:

```js
function f() {
    return someVeryLongStringA && someVeryLongStringB && someVeryLongStringC && someVeryLongStringD
}
```

a developer could select the line containing `return`, then use
prettier to format the code to:

```js
function f() {
return (
  someVeryLongStringA &&
  someVeryLongStringB &&
  someVeryLongStringC &&
  someVeryLongStringD
);
}
```

which can then be reindented by the editor.

---

Related to https://github.com/prettier/prettier/issues/593
---
 src/parser.js                                       |  2 +-
 .../__snapshots__/jsfmt.spec.js.snap                | 13 +++++++++++++
 tests/return-outside-function/jsfmt.spec.js         |  1 +
 .../return-outside-function.js                      |  1 +
 4 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 tests/return-outside-function/__snapshots__/jsfmt.spec.js.snap
 create mode 100644 tests/return-outside-function/jsfmt.spec.js
 create mode 100644 tests/return-outside-function/return-outside-function.js

diff --git a/src/parser.js b/src/parser.js
index 889093dc1..9de488dd1 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -63,7 +63,7 @@ function parseWithBabylon(text) {
   const babylonOptions = {
     sourceType: "module",
     allowImportExportEverywhere: false,
-    allowReturnOutsideFunction: false,
+    allowReturnOutsideFunction: true,
     plugins: [
       "jsx",
       "flow",
diff --git a/tests/return-outside-function/__snapshots__/jsfmt.spec.js.snap b/tests/return-outside-function/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 000000000..ae4e8beb1
--- /dev/null
+++ b/tests/return-outside-function/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,13 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`return-outside-function.js 1`] = `
+return someVeryLongStringA && someVeryLongStringB && someVeryLongStringC && someVeryLongStringD
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+return (
+  someVeryLongStringA &&
+  someVeryLongStringB &&
+  someVeryLongStringC &&
+  someVeryLongStringD
+);
+
+`;
diff --git a/tests/return-outside-function/jsfmt.spec.js b/tests/return-outside-function/jsfmt.spec.js
new file mode 100644
index 000000000..6a6711aef
--- /dev/null
+++ b/tests/return-outside-function/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, { parser: "babylon" }, ["typescript"]);
diff --git a/tests/return-outside-function/return-outside-function.js b/tests/return-outside-function/return-outside-function.js
new file mode 100644
index 000000000..29e96c8a5
--- /dev/null
+++ b/tests/return-outside-function/return-outside-function.js
@@ -0,0 +1 @@
+return someVeryLongStringA && someVeryLongStringB && someVeryLongStringC && someVeryLongStringD