fix(javascript): add parens for unary in bind (#4950)

* test: add tests * fix(javascript): add parens for unary in bind
prettier · Aug 8, 2018 · 4d2f224 · 4d2f224
1 parent e72cb53
commit 4d2f224
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Showing 3 changed files with 26 additions and 0 deletions.
diff --git a/src/language-js/needs-parens.js b/src/language-js/needs-parens.js
@@ -168,6 +168,7 @@ function needsParens(path, options) {
             (node.operator === "+" || node.operator === "-")
           );
 
+        case "BindExpression":
         case "MemberExpression":
           return name === "object" && parent.object === node;
 

diff --git a/tests/bind_expressions/__snapshots__/jsfmt.spec.js.snap b/tests/bind_expressions/__snapshots__/jsfmt.spec.js.snap
@@ -215,3 +215,25 @@ class X {
 }
 
 `;
+
+exports[`unary.js - babylon-verify 1`] = `
+(void 0)::func();
+
+(+0)::is(-0);
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+(void 0)::func();
+
+(+0)::is(-0);
+
+`;
+
+exports[`unary.js - babylon-verify 2`] = `
+(void 0)::func();
+
+(+0)::is(-0);
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+;(void 0)::func()
+
+;(+0)::is(-0)
+
+`;
diff --git a/tests/bind_expressions/unary.js b/tests/bind_expressions/unary.js
@@ -0,0 +1,3 @@
+(void 0)::func();
+
+(+0)::is(-0);