From cc9d71d6a21c65f401525d17fd74ab1cbd22da04 Mon Sep 17 00:00:00 2001
From: naruaway <naruaway@naruaway.com>
Date: Fri, 27 Dec 2019 18:30:01 +0900
Subject: [PATCH] Support Nullish coalescing operator ("??") (#67)

It's Stage 3 and already supported in TypeScript 3.7
---
 src/defaults.js                     |  1 +
 tests/fixtures/NullishCoalescing.js | 10 ++++++++++
 tests/tests.js                      |  9 +++++++++
 3 files changed, 20 insertions(+)
 create mode 100644 tests/fixtures/NullishCoalescing.js

diff --git a/src/defaults.js b/src/defaults.js
index cf4da23..a572967 100644
--- a/src/defaults.js
+++ b/src/defaults.js
@@ -43,5 +43,6 @@ export const BABEL_PARSING_OPTS = {
     'functionSent',
     'dynamicImport',
     'optionalChaining',
+    'nullishCoalescingOperator',
   ],
 }
diff --git a/tests/fixtures/NullishCoalescing.js b/tests/fixtures/NullishCoalescing.js
new file mode 100644
index 0000000..26ea776
--- /dev/null
+++ b/tests/fixtures/NullishCoalescing.js
@@ -0,0 +1,10 @@
+import { gettext } from 'gettext-lib'
+
+const someObject = {}
+
+const OptionalChaining = () => {
+  const expressionUsingOptionalChaining = someObject.something ?? 'defaultValue'
+  gettext('Nullish coalescing works')
+}
+
+export default OptionalChaining
diff --git a/tests/tests.js b/tests/tests.js
index 05c1d22..5658e92 100644
--- a/tests/tests.js
+++ b/tests/tests.js
@@ -527,4 +527,13 @@ describe('react-gettext-parser', () => {
       expect(messages[0].msgid).to.equal('Optional chaining works')
     })
   })
+
+  describe('nullish coalescing support', () => {
+    it('should parse javascript that contains nullish coalescing operator', () => {
+      const code = getSource('NullishCoalescing.js')
+      const messages = extractMessages(code)
+      expect(messages).to.have.length(1)
+      expect(messages[0].msgid).to.equal('Nullish coalescing works')
+    })
+  })
 })