eslint-rule-benchmark/dist/core/eslint/load-language-parser.js

Benchmark ESLint rules with detailed performance metrics for CI and plugin development

const LANGUAGE_PARSER_MAP = {
  'typescript-react': '@typescript-eslint/parser',
  typescript: '@typescript-eslint/parser',
  svelte: 'svelte-eslint-parser',
  astro: 'astro-eslint-parser',
  vue: 'vue-eslint-parser',
  'javascript-react': null,
  javascript: null,
}
async function loadLanguageParser(jiti, language) {
  let result = {}
  let parserName = LANGUAGE_PARSER_MAP[language]
  if (!parserName) {
    return { parser: null }
  }
  try {
    let moduleExport = await jiti.import(parserName)
    result.parser = extractParser(moduleExport)
    if (!result.parser) {
      result.error = `Parser not found in module: ${parserName}`
    }
  } catch (error) {
    let errorValue = error
    result.error = errorValue.message
  }
  return result
}
function extractParser(moduleExport) {
  if (
    moduleExport &&
    typeof moduleExport === 'object' &&
    (('parse' in moduleExport && typeof moduleExport.parse === 'function') ||
      ('parseForESLint' in moduleExport &&
        typeof moduleExport.parseForESLint === 'function'))
  ) {
    return moduleExport
  }
  if (
    moduleExport &&
    typeof moduleExport === 'object' &&
    'default' in moduleExport
  ) {
    let defaultExport = moduleExport.default
    if (
      defaultExport &&
      typeof defaultExport === 'object' &&
      (('parse' in defaultExport &&
        typeof defaultExport.parse === 'function') ||
        ('parseForESLint' in defaultExport &&
          typeof defaultExport.parseForESLint === 'function'))
    ) {
      return defaultExport
    }
  }
  return void 0
}
export { loadLanguageParser }