Function resolveParserPlugins

packages/compiler-sfc/src/script/context.ts:167–207

(
  lang: string,
  userPlugins?: ParserPlugin[],
  dts = false,
)

}

export function resolveParserPlugins(
  lang: string,
  userPlugins?: ParserPlugin[],
  dts = false,
): ParserPlugin[] {
  const plugins: ParserPlugin[] = []
  if (
    !userPlugins ||
    !userPlugins.some(
      p =>
        p === 'importAssertions' ||
        p === 'importAttributes' ||
        (isArray(p) && p[0] === 'importAttributes'),
    )
  ) {
    plugins.push('importAttributes')
  }
  if (lang === 'jsx' || lang === 'tsx' || lang === 'mtsx') {
    plugins.push('jsx')
  } else if (userPlugins) {
    // If don't match the case of adding jsx
    // should remove the jsx from user options
    userPlugins = userPlugins.filter(p => p !== 'jsx')
  }
  if (
    lang === 'ts' ||
    lang === 'mts' ||
    lang === 'tsx' ||
    lang === 'cts' ||
    lang === 'mtsx'
  ) {
    plugins.push(['typescript', { dts }], 'explicitResourceManagement')
    if (!userPlugins || !userPlugins.includes('decorators')) {
      plugins.push('decorators-legacy')
    }
  }
  if (userPlugins) {
    plugins.push(...userPlugins)
  }
  return plugins
}