home

home/ags/node_modules/eslint-plugin-es-x/lib/rules/no-bigint.js

@@ -0,0 +1,50 @@
+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ * See LICENSE file in root directory for full license.
+ */
+"use strict"
+
+const { ReferenceTracker } = require("@eslint-community/eslint-utils")
+const { getSourceCode } = require("eslint-compat-utils")
+
+module.exports = {
+    meta: {
+        docs: {
+            description: "disallow `bigint` syntax and built-ins",
+            category: "ES2020",
+            recommended: false,
+            url: "http://eslint-community.github.io/eslint-plugin-es-x/rules/no-bigint.html",
+        },
+        fixable: null,
+        messages: {
+            forbidden: "ES2020 BigInt is forbidden.",
+        },
+        schema: [],
+        type: "problem",
+    },
+    create(context) {
+        return {
+            Literal(node) {
+                if (node.bigint != null) {
+                    context.report({ messageId: "forbidden", node })
+                }
+            },
+
+            "Program:exit"(program) {
+                const sourceCode = getSourceCode(context)
+                const tracker = new ReferenceTracker(
+                    sourceCode.getScope(program),
+                )
+                const references = tracker.iterateGlobalReferences({
+                    BigInt: { [ReferenceTracker.READ]: true },
+                    BigInt64Array: { [ReferenceTracker.READ]: true },
+                    BigUint64Array: { [ReferenceTracker.READ]: true },
+                })
+
+                for (const { node } of references) {
+                    context.report({ messageId: "forbidden", node })
+                }
+            },
+        }
+    },
+}