Migrate Esprima to SWC (#33)

https://swc.rs/docs/usage/core

.github/workflows/lint.yml

@@ -13,5 +13,5 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "lts/*"
       - run: npm run lint

.github/workflows/publish.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: "16"
+          node-version: "lts/*"
           registry-url: "https://registry.npmjs.org"
           cache: npm
       - run: npm ci

.github/workflows/test.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ["12", "14", "16"]
+        node-version: ["12", "14", "16", "18"]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3

index.js

@@ -1,6 +1,6 @@
 import { lintRule } from "unified-lint-rule";
 import { visit } from "unist-util-visit";
-import { default as esprima } from "esprima";
+import { default as swc } from "@swc/core";
 import { default as yaml } from "js-yaml";
 
 const remarkLintCodeBlockSyntax = lintRule("remark-lint:code-block-syntax", codeSyntax);
@@ -43,7 +43,10 @@ function codeSyntax(tree, file) {
 
   function checkJs(code) {
     try {
-      esprima.parseScript(code);
+      swc.parseSync(code, {
+        syntax: "ecmascript",
+        target: "es2022",
+      });
       return null;
     } catch (e) {
       return e.message;

index.test.js

@@ -42,7 +42,7 @@ describe("JavaScript", () => {
       {
         column: 1,
         line: 1,
-        message: "Invalid JavaScript: Line 1: Unexpected end of input",
+        message: expect.stringMatching(/^Invalid JavaScript:/),
         ruleId: "code-block-syntax",
         source: "remark-lint",
       },