Function dedupeDefs

javascript/selenium-webdriver/normalize_bidi_ast.mjs:460–471

(ast)

 * @returns {object[]} A new AST array with duplicate-named defs removed (first wins).
 */
export function dedupeDefs(ast) {
  const seen = new Set()
  const out = []
  for (const def of ast) {
    if (def && typeof def === 'object' && typeof def.Name === 'string') {
      if (seen.has(def.Name)) continue
      seen.add(def.Name)
    }
    out.push(def)
  }
  return out
}

/**
 * Apply all normalizations to a raw BiDi AST. Pure — does not mutate `ast`.