Fix parentheses removal in nullish-coalescing operation (babel#11014)

* Added precedence for nullish-coalescing-operator * Made precedence equal to logical OR * Renamed the folders made for testing * Fixed the output test file of nullish-coalescing op
Berkmann18 · Jan 15, 2020 · 6ad7e19 · 6ad7e19
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commit 6ad7e19
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diff --git a/packages/babel-generator/src/node/parentheses.js b/packages/babel-generator/src/node/parentheses.js
@@ -2,6 +2,7 @@ import * as t from "@babel/types";
 
 const PRECEDENCE = {
   "||": 0,
+  "??": 0,
   "&&": 1,
   "|": 2,
   "^": 3,

diff --git a/packages/babel-generator/test/fixtures/parentheses/nullish-coalescing/input.js b/packages/babel-generator/test/fixtures/parentheses/nullish-coalescing/input.js
@@ -0,0 +1,2 @@
+const foo = 'test'
+console.log((foo ?? '') == '')
diff --git a/packages/babel-generator/test/fixtures/parentheses/nullish-coalescing/output.js b/packages/babel-generator/test/fixtures/parentheses/nullish-coalescing/output.js
@@ -0,0 +1,2 @@
+const foo = 'test';
+console.log((foo ?? '') == '');