eslint-plugin-no-jp/lib/rules/noJpComment.ts

Make sure nothing is written in Japanese

import { TSESLint } from '@typescript-eslint/utils'
import { TSESTree } from '@typescript-eslint/utils'
import { RuleContext } from '@typescript-eslint/utils/dist/ts-eslint'
import { includeJa } from '../utils'
import type { MessageIds, Options } from '../../types'

export const noJpComment: TSESLint.RuleModule<'noJpComment', []> = {
  meta: {
    type: 'suggestion',
    docs: {
      description: 'Check if there is no JP in comments.',
      recommended: 'warn',
      url: '',
    },
    messages: {
      'noJpComment': 'Please refrain from using the Japanese language for comments(日本語のご使用はお控えください)'
    },
    schema: []
  },
  create: (context: RuleContext<MessageIds, Options>) => {
    const sourceCode = context.getSourceCode()
    const comments: TSESTree.Comment[] = sourceCode.ast.comments

    return {
      'Program': () => {
        comments.forEach((commentNode: TSESTree.Comment) => {
          const val = commentNode.value.trim()
          if (includeJa(val)) {
            context.report({ node: commentNode, messageId: 'noJpComment' })
          }
        })
      }
    }
  }
}