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Implement parser (#1)
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‎.eslintignore

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/.nyc_output
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/coverage
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/lib
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/node_modules
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/tests/fixtures/**/*.json

‎.eslintrc.js

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"use strict"
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// const version = require("./package.json").version
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module.exports = {
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parserOptions: {
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sourceType: "script",
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ecmaVersion: 2020,
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},
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extends: [
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"plugin:@ota-meshi/recommended",
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"plugin:@ota-meshi/+node",
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"plugin:@ota-meshi/+typescript",
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"plugin:@ota-meshi/+prettier",
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"plugin:@ota-meshi/+json",
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],
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rules: {
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"require-jsdoc": "error",
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"no-warning-comments": "warn",
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"no-lonely-if": "off",
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},
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overrides: [
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{
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files: ["*.ts"],
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parser: "@typescript-eslint/parser",
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parserOptions: {
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sourceType: "module",
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project: "./tsconfig.json",
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},
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rules: {
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"@typescript-eslint/naming-convention": [
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"error",
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{
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selector: "default",
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format: ["camelCase"],
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leadingUnderscore: "allow",
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trailingUnderscore: "allow",
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},
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{
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selector: "variable",
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format: ["camelCase", "UPPER_CASE"],
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leadingUnderscore: "allow",
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trailingUnderscore: "allow",
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},
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{
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selector: "typeLike",
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format: ["PascalCase"],
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},
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{
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selector: "property",
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format: null,
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},
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{
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selector: "method",
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format: null,
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},
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],
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"no-implicit-globals": "off",
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"@typescript-eslint/no-non-null-assertion": "off",
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"@typescript-eslint/no-use-before-define": "off",
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"@typescript-eslint/no-explicit-any": "off",
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},
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},
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{
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files: ["scripts/**/*.ts", "tests/**/*.ts"],
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rules: {
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"require-jsdoc": "off",
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"no-console": "off",
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},
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},
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],
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}

‎.github/workflows/GHPages.yml

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name: GHPages
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on:
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push:
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branches: [main]
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jobs:
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deploy-docs:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: actions/setup-node@v2
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- name: Install And Build
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run: |+
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npm install
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npm run build
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cd explorer
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npm install
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npm run build
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- name: Deploy
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uses: peaceiris/actions-gh-pages@v3
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with:
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github_token: ${{ secrets.GITHUB_TOKEN }}
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publish_dir: ./explorer/dist
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force_orphan: true

‎.github/workflows/NodeCI.yml

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name: CI
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on:
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push:
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branches: [main]
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pull_request:
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branches: [main]
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jobs:
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lint:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: actions/setup-node@v2
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with:
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node-version: 14
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- name: Install Packages
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run: npm install
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- name: Lint
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run: npm run lint
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test:
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runs-on: ubuntu-latest
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strategy:
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matrix:
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node-version: [12.x, 13.x, 14.x]
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steps:
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- uses: actions/checkout@v2
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- name: Use Node.js ${{ matrix.node-version }}
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uses: actions/setup-node@v2
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with:
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node-version: ${{ matrix.node-version }}
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- name: Install Packages
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run: npm install
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- name: Test
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run: npm test
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test-and-coverage:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v2
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- uses: actions/setup-node@v2
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- name: Install Packages
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run: npm install
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- name: Test
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run: npm run cover
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- name: Coveralls GitHub Action
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uses: coverallsapp/github-action@v1.1.2
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with:
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github-token: ${{ secrets.GITHUB_TOKEN }}

‎.github/workflows/NpmPublish.yml

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name: publish
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on:
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push:
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tags:
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- "*"
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jobs:
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release:
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name: check version, and release
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runs-on: ubuntu-latest
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steps:
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- name: checkout
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uses: actions/checkout@v2
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- name: setup Node
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uses: actions/setup-node@v2
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with:
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registry-url: 'https://registry.npmjs.org'
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- name: Install Packages
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run: npm install
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- name: test and build
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run: |
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npm run build
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npm run test
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- name: check can npm-publish
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run: npx can-npm-publish
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- name: release
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run: npm publish
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env:
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NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

‎.gitignore

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# TernJS port file
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.tern-port
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# repo
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/lib
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/.nyc_output
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/coverage

‎.npmrc

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package-lock=false

‎.vscode/settings.json

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{
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"eslint.validate": [
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"javascript",
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"javascriptreact",
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"vue",
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"typescript",
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"json",
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"jsonc"
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],
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"typescript.validate.enable": true,
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"javascript.validate.enable": false,
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"typescript.tsdk": "node_modules/typescript/lib",
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"editor.codeActionsOnSave": {
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"source.fixAll.eslint": true,
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},
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"vetur.validation.template": false
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}

‎README.md

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# svelte-eslint-parser
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Svelte parser for ESLint
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[Svelte] parser for [ESLint]
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***Works In Progress***
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***This parser is still in an EXPERIMENTAL STATE***
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## ❓ Why?
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[Svelte] has the official ESLint plugin [eslint-plugin-svelte3]. [eslint-plugin-svelte3] works well enough to check scripts. However, it does not handle the AST of the template, which makes it very difficult for third parties to create their own [ESLint] rules for [Svelte].
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The `svelte-eslint-parser` aims to make it easy to create your own rules for [Svelte] by allowing the template AST to be used in the rules.
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## 💿 Installation
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```bash
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npm install --save-dev eslint svelte-eslint-parser
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```
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## 📖 Usage
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1. Write `overrides.parser` option into your `.eslintrc.*` file.
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2. Use glob patterns or `--ext .vue` CLI option.
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```json
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{
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"extends": "eslint:recommended",
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"overrides": [
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{
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"files": ["*.svelte"],
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"parser": "svelte-eslint-parser"
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}
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]
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}
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```
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```console
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$ eslint "src/**/*.{js,svelte}"
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# or
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$ eslint src --ext .svelte
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```
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## 🔧 Options
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`parserOptions` has the same properties as what [espree](https://github.com/eslint/espree#usage), the default parser of ESLint, is supporting.
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For example:
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```json
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{
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"parser": "svelte-eslint-parser",
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"parserOptions": {
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"sourceType": "module",
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"ecmaVersion": 2021,
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"ecmaFeatures": {
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"globalReturn": false,
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"impliedStrict": false,
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"jsx": false
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}
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}
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}
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```
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### parserOptions.parser
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You can use `parserOptions.parser` property to specify a custom parser to parse `<script>` tags.
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Other properties than parser would be given to the specified parser.
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For example:
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```json
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{
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"parser": "svelte-eslint-parser",
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"parserOptions": {
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"parser": "@typescript-eslint/parser"
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}
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}
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```
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## :computer: Editor Integrations
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### Visual Studio Code
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Use the [dbaeumer.vscode-eslint](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint) extension that Microsoft provides officially.
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You have to configure the `eslint.validate` option of the extension to check `.svelte` files, because the extension targets only `*.js` or `*.jsx` files by default.
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Example **.vscode/settings.json**:
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```json
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{
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"eslint.validate": [
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"javascript",
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"javascriptreact",
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"svelte"
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]
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}
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```
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## :beers: Contributing
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Welcome contributing!
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Please use GitHub's Issues/PRs.
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## :lock: License
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See the [LICENSE](LICENSE) file for license rights and limitations (MIT).
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[Svelte]: https://svelte.dev/
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[ESLint]: https://eslint.org/
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[eslint-plugin-svelte3]: https://github.com/sveltejs/eslint-plugin-svelte3

‎docs/AST.md

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# AST for Svelte
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See details: [../src/ast.ts](../src/ast.ts)
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### Program
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```js
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extend interface Program {
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body: TODO[]
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}
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```
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[ESLint - The AST specification]: https://eslint.org/docs/developer-guide/working-with-custom-parsers#the-ast-specification

‎explorer/.eslintrc.js

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module.exports = {
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parserOptions: {
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sourceType: "module",
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ecmaVersion: 2020,
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},
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extends: [
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"plugin:@ota-meshi/+vue3",
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"plugin:@ota-meshi/+prettier",
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"plugin:@ota-meshi/+json",
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],
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rules: {
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"node/no-unsupported-features/es-syntax": "off",
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"node/no-missing-import": "off",
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},
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}

‎explorer/.npmrc

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package-lock=false

‎explorer/babel.config.js

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module.exports = {
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presets: ["@vue/cli-plugin-babel/preset"],
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}

‎explorer/package.json

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{
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"name": "svelte-eslint-parser-ast-explorer",
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"version": "0.1.0",
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"private": true,
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"scripts": {
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"serve": "vue-cli-service serve",
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"build": "vue-cli-service build"
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},
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"dependencies": {
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"core-js": "^3.6.5",
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"vue": "^3.0.0"
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},
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"devDependencies": {
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"@vue/cli-plugin-babel": "~4.5.0",
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"@vue/cli-service": "~4.5.0",
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"@vue/compiler-sfc": "^3.0.0"
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},
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"browserslist": [
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"> 1%",
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"last 2 versions",
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"not dead"
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]
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}

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