Bug 1769569 - Make use-cc-etc auto-fixable. r=Gijs

Differential Revision: https://phabricator.services.mozilla.com/D146450

tools/lint/eslint/eslint-plugin-mozilla/lib/rules/use-cc-etc.js

@@ -22,6 +22,7 @@ module.exports = {
         "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/use-cc-etc.html",
     },
     type: "suggestion",
+    fixable: "code",
   },
 
   create(context) {
@@ -33,12 +34,17 @@ module.exports = {
           node.property.type === "Identifier" &&
           Object.getOwnPropertyNames(componentsMap).includes(node.property.name)
         ) {
-          context.report(
+          context.report({
             node,
-            `Use ${componentsMap[node.property.name]} rather than Components.${
-              node.property.name
-            }`
-          );
+            message: `Use ${
+              componentsMap[node.property.name]
+            } rather than Components.${node.property.name}`,
+            fix: fixer =>
+              fixer.replaceTextRange(
+                [node.range[0], node.range[1]],
+                componentsMap[node.property.name]
+              ),
+          });
         }
       },
     };

tools/lint/eslint/eslint-plugin-mozilla/tests/use-cc-etc.js

@@ -16,9 +16,10 @@ const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 6 } });
 // Tests
 // ------------------------------------------------------------------------------
 
-function invalidCode(code, originalName, newName) {
+function invalidCode(code, originalName, newName, output) {
   return {
     code,
+    output,
     errors: [
       {
         message: `Use ${newName} rather than ${originalName}`,
@@ -34,22 +35,26 @@ ruleTester.run("use-cc-etc", rule, {
     invalidCode(
       "let foo = Components.classes['bar'];",
       "Components.classes",
-      "Cc"
+      "Cc",
+      "let foo = Cc['bar'];"
     ),
     invalidCode(
       "let bar = Components.interfaces.bar;",
       "Components.interfaces",
-      "Ci"
+      "Ci",
+      "let bar = Ci.bar;"
     ),
     invalidCode(
       "Components.results.NS_ERROR_ILLEGAL_INPUT;",
       "Components.results",
-      "Cr"
+      "Cr",
+      "Cr.NS_ERROR_ILLEGAL_INPUT;"
     ),
     invalidCode(
       "Components.utils.reportError('fake');",
       "Components.utils",
-      "Cu"
+      "Cu",
+      "Cu.reportError('fake');"
     ),
   ],
 });