support array destructuring

aladdin-add · Jun 9, 2019 · 69beb3e · 69beb3e
1 parent 262016a
commit 69beb3e
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Showing 2 changed files with 21 additions and 1 deletion.
diff --git a/lib/rules/no-unused-vars.js b/lib/rules/no-unused-vars.js
@@ -104,6 +104,8 @@ module.exports = ruleComposer.mapReports(
                         fixer.remove(parent),
                         fixer.remove(sourceCode.getTokenAfter(parent, commaFilter))
                     ];
+                case "ArrayPattern":
+                    return fixer.remove(node);
                 default:
                     return null;
             }

diff --git a/tests/lib/rules/no-unused-vars.js b/tests/lib/rules/no-unused-vars.js
@@ -141,12 +141,30 @@ ruleTester.run("no-unused-vars", rule, {
             output: null,
             errors: [{ type: "Identifier" }]
         },
+        {
+            code: "var [a] = c",
+            output: "var [] = c",
+            parserOptions: { ecmaVersion: 6 },
+            errors: [{ type: "Identifier" }]
+        },
         {
             code: "var [a, b] = c",
-            output: null,
+            output: "var [, ] = c",
             parserOptions: { ecmaVersion: 6 },
             errors: [{ type: "Identifier" }, { type: "Identifier" }]
         },
+        {
+            code: "var [a, b] = c; a;",
+            output: "var [a, ] = c; a;",
+            parserOptions: { ecmaVersion: 6 },
+            errors: [{ type: "Identifier" }]
+        },
+        {
+            code: "var [a, b] = c; b;",
+            output: "var [, b] = c; b;",
+            parserOptions: { ecmaVersion: 6 },
+            errors: [{ type: "Identifier" }]
+        },
         {
             code: "var a = b, c = d; c;",
             output: "var  c = d; c;",