Add es/no-class-static-block rule

docs/rules/no-class-static-block.md

@@ -0,0 +1,28 @@
+# es/no-class-static-block
+> disallow class static block
+
+- ✅ The following configurations enable this rule: `plugin:es/no-new-in-esnext`
+
+This rule reports ES2022 class static blocks as errors.
+
+## Examples
+
+⛔ Examples of **incorrect** code for this rule:
+
+<eslint-playground type="bad" code="/*eslint es/no-class-static-block: error */
+class A {
+    static {
+        // ...
+    }
+}
+const B = class {
+    static {
+        // ...
+    }
+}
+" />
+
+## 📚 References
+
+- [Rule source](https://github.com/mysticatea/eslint-plugin-es/blob/v4.1.0/lib/rules/no-class-static-block.js)
+- [Test source](https://github.com/mysticatea/eslint-plugin-es/blob/v4.1.0/tests/lib/rules/no-class-static-block.js)

lib/index.js

@@ -79,6 +79,7 @@ module.exports = {
         "no-binary-numeric-literals": require("./rules/no-binary-numeric-literals"),
         "no-block-scoped-functions": require("./rules/no-block-scoped-functions"),
         "no-block-scoped-variables": require("./rules/no-block-scoped-variables"),
+        "no-class-static-block": require("./rules/no-class-static-block"),
         "no-classes": require("./rules/no-classes"),
         "no-computed-properties": require("./rules/no-computed-properties"),
         "no-date-now": require("./rules/no-date-now"),

lib/rules/no-class-static-block.js

@@ -0,0 +1,30 @@
+/**
+ * @author Yosuke Ota <https://github.com/ota-meshi>
+ * See LICENSE file in root directory for full license.
+ */
+"use strict"
+
+module.exports = {
+    meta: {
+        docs: {
+            description: "disallow class static block.",
+            category: "ES2022",
+            recommended: false,
+            url:
+                "http://mysticatea.github.io/eslint-plugin-es/rules/no-class-static-block.html",
+        },
+        fixable: null,
+        messages: {
+            forbidden: "ES2022 class static block is forbidden.",
+        },
+        schema: [],
+        type: "problem",
+    },
+    create(context) {
+        return {
+            StaticBlock(node) {
+                context.report({ node, messageId: "forbidden" })
+            },
+        }
+    },
+}

package.json

@@ -20,11 +20,11 @@
     "@mysticatea/eslint-plugin": "^13.0.0",
     "@typescript-eslint/parser": "^4.8.2",
     "@vuepress/plugin-pwa": "^1.2.0",
-    "acorn": "^7.1.0",
+    "acorn": "^8.5.0",
     "codecov": "^3.8.1",
-    "eslint": "^7.10.0",
+    "eslint": "^8.0.0-0",
     "eslint4b": "^7.10.0",
-    "espree": "^7.0.0",
+    "espree": "^9.0.0",
     "globals": "^12.0.0",
     "mocha": "^6.2.0",
     "npm-run-all": "^4.1.5",

tests/lib/rules/no-class-static-block.js

@@ -0,0 +1,28 @@
+/**
+ * @author Yosuke Ota <https://github.com/ota-meshi>
+ * See LICENSE file in root directory for full license.
+ */
+"use strict"
+
+const RuleTester = require("../../tester")
+const rule = require("../../../lib/rules/no-class-static-block.js")
+
+if (!RuleTester.isSupported(2022)) {
+    //eslint-disable-next-line no-console
+    console.log("Skip the tests of no-class-static-block.")
+    return
+}
+
+new RuleTester().run("no-class-static-block", rule, {
+    valid: ["class A { static f() {} }", "class A { static get f() {} }"],
+    invalid: [
+        {
+            code: "class A { static {}; }",
+            errors: ["ES2022 class static block is forbidden."],
+        },
+        {
+            code: "(class { static {} })",
+            errors: ["ES2022 class static block is forbidden."],
+        },
+    ],
+})

tests/tester.js

@@ -11,6 +11,7 @@ const semver = require("semver")
 const eslintVersion = new Linter().version
 const ecmaVersion =
     /*eslint-disable @mysticatea/prettier */
+    semver.gte(eslintVersion, "8.0.0-0") ? 2022 :
     semver.gte(eslintVersion, "7.8.0") ? 2021 :
     semver.gte(eslintVersion, "6.2.0") ? 2020 :
     semver.gte(eslintVersion, "5.0.0") ? 2019 :