Function main

javascript/selenium-webdriver/generate_bidi.mjs:145–189

()

// ============================================================

async function main() {
  const { values: args } = parseArgs({
    options: {
      cddl: { type: 'string', multiple: true },
      'override-cddl': { type: 'string', multiple: true },
      'vendor-cddl': { type: 'string', multiple: true },
      ast: { type: 'string' },
      model: { type: 'string' },
      'dump-ast': { type: 'string' },
      'dump-model': { type: 'string' },
      enhancements: { type: 'string' },
      'output-dir': { type: 'string' },
      'spec-version': { type: 'string', default: '1.0' },
    },
  })

  // One pipeline stage per invocation; the flags select the stage.
  if (args['dump-ast'] && args.cddl?.length) {
    // The base spec is several CDDL files (webdriver-bidi + the adjacent specs); each
    // is parsed independently and their definitions concatenated. Top-level CDDL
    // productions are position-independent (refs resolve by name later), so this equals
    // parsing one merged file — without a separate merge step or tool. Spec-shaped Selenium
    // overrides (e.g. #1140) are applied here; vendor overlays are NOT, so this base AST —
    // which feeds the model and the browser-neutral TypeScript binding — stays vendor-free.
    const baseAst = args.cddl.flatMap(parseCddl)
    writeJson(args['dump-ast'], applyOverrides(baseAst, args['override-cddl'] ?? []), 'ast')
  } else if (args['dump-ast'] && args.ast && args['vendor-cddl']?.length) {
    // The base AST plus vendor overlays, consumed ONLY by the schema projector. Applying vendor
    // on this separate path (rather than into the shared base AST) is what keeps the tagged
    // vendor fields out of cddl2ts and the model — the schema step segregates them into `vendor`.
    writeJson(args['dump-ast'], applyVendor(readJson(args.ast, 'AST'), args['vendor-cddl']), 'ast')
  } else if (args['dump-model'] && args.ast) {
    writeJson(args['dump-model'], buildModel(readJson(args.ast, 'AST')), 'model', true)
  } else if (args['output-dir'] && args.ast && args.model) {
    generateTypeScript(readJson(args.ast, 'AST'), readJson(args.model, 'model'), args)
  } else {
    console.error(
      'Usage (one stage per invocation):\n' +
        '  generate_bidi.mjs --cddl <file> [--cddl <file>...] --dump-ast <file>\n' +
        '  generate_bidi.mjs --ast <file> --dump-model <file>\n' +
        '  generate_bidi.mjs --ast <file> --model <file> --output-dir <dir> [--enhancements <file>] [--spec-version <v>]',
    )
    process.exit(1)
  }
}

function parseCddl(cddlArg) {
  const cddlPath = resolveInputPath(cddlArg)