Function inputBindingUpdate

packages/core/src/render3/dynamic_bindings.ts:80–112

(targetDirectiveIdx: number, publicName: string, value: unknown)

// - move more logic to the first creation pass
// - move this function to under the instructions folder
function inputBindingUpdate(targetDirectiveIdx: number, publicName: string, value: unknown) {
  const lView = getLView();
  const bindingIndex = nextBindingIndex();
  if (bindingUpdated(lView, bindingIndex, value)) {
    const tView = lView[TVIEW];
    const tNode = getSelectedTNode();

    const componentLView = getComponentLViewByIndex(tNode.index, lView);
    markViewDirty(componentLView, NotificationSource.SetInput);

    // TODO(pk): don't check on each and every binding, just assert in dev mode
    const targetDef = tView.directiveRegistry![targetDirectiveIdx];
    if (ngDevMode && !targetDef) {
      throw new RuntimeError(
        RuntimeErrorCode.NO_BINDING_TARGET,
        `Input binding to property "${publicName}" does not have a target.`,
      );
    }

    // TODO(pk): the hasSet check should be replaced by one-off check in the first creation pass
    const hasSet = setDirectiveInput(tNode, tView, lView, targetDef, publicName, value);

    if (ngDevMode) {
      if (!hasSet) {
        throw new RuntimeError(
          RuntimeErrorCode.NO_BINDING_TARGET,
          `${stringifyForError(targetDef.type)} does not have an input with a public name of "${publicName}".`,
        );
      }
      storePropertyBindingMetadata(tView.data, tNode, publicName, bindingIndex);
    }
  }
}

/**
 * Creates an input binding.