Function traverseHtml

packages/vite/src/node/plugins/html.ts:202–223

(
  html: string,
  filePath: string,
  warn: Logger['warn'],
  visitor: (node: DefaultTreeAdapterMap['node']) => void,
)

type ParseWarnings = Partial<Record<ErrorCodes, string>>

export async function traverseHtml(
  html: string,
  filePath: string,
  warn: Logger['warn'],
  visitor: (node: DefaultTreeAdapterMap['node']) => void,
): Promise<void> {
  // lazy load compiler
  const { parse, ErrorCodes } = await import('parse5')
  const warnings: ParseWarnings = {}
  const ast = parse(html, {
    scriptingEnabled: false, // parse inside <noscript>
    sourceCodeLocationInfo: true,
    onParseError: (e: ParserError) => {
      handleParseError(e, ErrorCodes, html, filePath, warnings)
    },
  })
  traverseNodes(ast, visitor)

  for (const message of Object.values(warnings)) {
    warn(colors.yellow(`\n${message}`))
  }
}

export function getScriptInfo(node: DefaultTreeAdapterMap['element']): {
  src: Token.Attribute | undefined