fix(linter): accept bools as valid values for fixable

apps/oxlint/src-js/plugins/load.ts

@@ -181,10 +181,17 @@ export function registerPlugin(
 
       const { fixable } = ruleMeta;
       if (fixable != null) {
-        if (fixable !== "code" && fixable !== "whitespace") {
+        // `true` and `false` aren't valid values for `meta.fixable`, but we accept them for
+        // backward compatibility with some ESLint plugins
+        if (
+          fixable !== "code" &&
+          fixable !== "whitespace" &&
+          fixable !== true &&
+          fixable !== false
+        ) {
           throw new TypeError("Invalid `rule.meta.fixable`");
         }
-        isFixable = true;
+        isFixable = (fixable as "code" | "whitespace" | true | false) !== false;
       }
 
       // If `schema` provided, compile schema to validator for applying schema defaults to options

apps/oxlint/test/fixtures/fixable_boolean/.oxlintrc.json

@@ -0,0 +1,10 @@
+{
+  "jsPlugins": ["./plugin.ts"],
+  "categories": {
+    "correctness": "off"
+  },
+  "rules": {
+    "fixable-boolean-plugin/no-debugger-true": "error",
+    "fixable-boolean-plugin/no-console-false": "error"
+  }
+}

apps/oxlint/test/fixtures/fixable_boolean/files/index.js

@@ -0,0 +1,2 @@
+debugger;
+console.log("test");

apps/oxlint/test/fixtures/fixable_boolean/fix.snap.md

@@ -0,0 +1,28 @@
+# Exit code
+1
+
+# stdout
+```
+  x fixable-boolean-plugin(no-console-false): Console with fixable: false
+   ,-[files/index.js:2:1]
+ 1 | debugger;
+ 2 | console.log("test");
+   : ^^^^^^^^^^^^^^^^^^^
+   `----
+
+Found 0 warnings and 1 error.
+Finished in Xms on 1 file with 2 rules using X threads.
+```
+
+# stderr
+```
+WARNING: JS plugins are experimental and not subject to semver.
+Breaking changes are possible while JS plugins support is under development.
+```
+
+# File altered: files/index.js
+```
+
+console.log("test");
+
+```

apps/oxlint/test/fixtures/fixable_boolean/options.json

@@ -0,0 +1,3 @@
+{
+  "fix": true
+}

apps/oxlint/test/fixtures/fixable_boolean/output.snap.md

@@ -0,0 +1,28 @@
+# Exit code
+1
+
+# stdout
+```
+  x fixable-boolean-plugin(no-debugger-true): Debugger with fixable: true
+   ,-[files/index.js:1:1]
+ 1 | debugger;
+   : ^^^^^^^^^
+ 2 | console.log("test");
+   `----
+
+  x fixable-boolean-plugin(no-console-false): Console with fixable: false
+   ,-[files/index.js:2:1]
+ 1 | debugger;
+ 2 | console.log("test");
+   : ^^^^^^^^^^^^^^^^^^^
+   `----
+
+Found 0 warnings and 2 errors.
+Finished in Xms on 1 file with 2 rules using X threads.
+```
+
+# stderr
+```
+WARNING: JS plugins are experimental and not subject to semver.
+Breaking changes are possible while JS plugins support is under development.
+```

apps/oxlint/test/fixtures/fixable_boolean/plugin.ts

@@ -0,0 +1,54 @@
+import type { Plugin } from "#oxlint/plugin";
+
+// Test backward compatibility for `meta.fixable: true` and `meta.fixable: false`
+// which some ESLint plugins use instead of "code" or "whitespace"
+const plugin: Plugin = {
+  meta: {
+    name: "fixable-boolean-plugin",
+  },
+  rules: {
+    // Rule with fixable: true (backward compatibility)
+    "no-debugger-true": {
+      meta: {
+        fixable: true as any,
+      },
+      create(context) {
+        return {
+          DebuggerStatement(node) {
+            context.report({
+              message: "Debugger with fixable: true",
+              node,
+              fix(fixer) {
+                return fixer.remove(node);
+              },
+            });
+          },
+        };
+      },
+    },
+    // Rule with fixable: false (backward compatibility)
+    "no-console-false": {
+      meta: {
+        fixable: false as any,
+      },
+      create(context) {
+        return {
+          CallExpression(node) {
+            if (
+              node.callee.type === "MemberExpression" &&
+              node.callee.object.type === "Identifier" &&
+              node.callee.object.name === "console"
+            ) {
+              context.report({
+                message: "Console with fixable: false",
+                node,
+              });
+            }
+          },
+        };
+      },
+    },
+  },
+};
+
+export default plugin;