From 6ee2f464ac5e0bb05f0418a303bdfad2e7710bb7 Mon Sep 17 00:00:00 2001
From: Ika <ikatyang@gmail.com>
Date: Sun, 18 Nov 2018 16:38:35 +0800
Subject: [PATCH] feat(javascript): enable logical assignment (#5489)

---
 src/language-js/parser-babylon.js                         | 3 ++-
 .../babylon/__snapshots__/jsfmt.spec.js.snap              | 8 ++++++++
 tests/assignment_expression/babylon/jsfmt.spec.js         | 1 +
 tests/assignment_expression/babylon/logical-assignment.js | 1 +
 4 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 tests/assignment_expression/babylon/__snapshots__/jsfmt.spec.js.snap
 create mode 100644 tests/assignment_expression/babylon/jsfmt.spec.js
 create mode 100644 tests/assignment_expression/babylon/logical-assignment.js

diff --git a/src/language-js/parser-babylon.js b/src/language-js/parser-babylon.js
index faa6403ae..00ad22e73 100644
--- a/src/language-js/parser-babylon.js
+++ b/src/language-js/parser-babylon.js
@@ -33,7 +33,8 @@ function babylonOptions(extraOptions, extraPlugins) {
         ["pipelineOperator", { proposal: "minimal" }],
         "nullishCoalescingOperator",
         "bigInt",
-        "throwExpressions"
+        "throwExpressions",
+        "logicalAssignment"
       ].concat(extraPlugins)
     },
     extraOptions
diff --git a/tests/assignment_expression/babylon/__snapshots__/jsfmt.spec.js.snap b/tests/assignment_expression/babylon/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 000000000..2d65aea6f
--- /dev/null
+++ b/tests/assignment_expression/babylon/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,8 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`logical-assignment.js - babylon-verify 1`] = `
+a ||= b;
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+a ||= b;
+
+`;
diff --git a/tests/assignment_expression/babylon/jsfmt.spec.js b/tests/assignment_expression/babylon/jsfmt.spec.js
new file mode 100644
index 000000000..968651cdb
--- /dev/null
+++ b/tests/assignment_expression/babylon/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, ["babylon"]);
diff --git a/tests/assignment_expression/babylon/logical-assignment.js b/tests/assignment_expression/babylon/logical-assignment.js
new file mode 100644
index 000000000..53c87792b
--- /dev/null
+++ b/tests/assignment_expression/babylon/logical-assignment.js
@@ -0,0 +1 @@
+a ||= b;