Function bootstrap

src/amp.js:49–91

* Execute the bootstrap * @param {!./service/ampdoc-impl.AmpDoc} ampdoc * @param {!./service/performance-impl.Performance} perf

(ampdoc, perf)

 * @param {!./service/performance-impl.Performance} perf
 */
function bootstrap(ampdoc, perf) {
  startupChunk(self.document, function services() {
    // Core services.
    installRuntimeServices(self);
    installAmpdocServices(ampdoc);
    // We need the core services (viewer/resources) to start instrumenting
    perf.coreServicesAvailable();
    maybeTrackImpression(self);
  });
  startupChunk(self.document, function adoptWindow() {
    adoptWithMultidocDeps(self);
  });
  startupChunk(self.document, function builtins() {
    // Builtins.
    installBuiltinElements(self);
  });
  startupChunk(self.document, function stub() {
    // Pre-stub already known elements.
    stubElementsForDoc(ampdoc);
    whenDocumentComplete(self.document).then(() => markUnresolvedElements());
  });
  startupChunk(
    self.document,
    function final() {
      if (!IS_SXG) {
        installPullToRefreshBlocker(self);
      }
      installAutoLightboxExtension(ampdoc);
      installStandaloneExtension(ampdoc);
      maybeValidate(self);
      makeBodyVisible(self.document);
      preconnectToOrigin(self.document);
    },
    /* makes the body visible */ true
  );
  startupChunk(self.document, function finalTick() {
    perf.tick(TickLabel_Enum.END_INSTALL_STYLES);
    Services.resourcesForDoc(ampdoc).ampInitComplete();
    // TODO(erwinm): move invocation of the `flush` method when we have the
    // new ticks in place to batch the ticks properly.
    perf.flush();
  });
}

// Store the originalHash as early as possible. Trying to debug:
// https://github.com/ampproject/amphtml/issues/6070