Function createComponentInstance

web/main.js:6340–6428

(vnode, parent, suspense)

const emptyAppContext = createAppContext();
let uid = 0;
function createComponentInstance(vnode, parent, suspense) {
  const type = vnode.type;
  const appContext = (parent ? parent.appContext : vnode.appContext) || emptyAppContext;
  const instance = {
    uid: uid++,
    vnode,
    type,
    parent,
    appContext,
    root: null,
    // to be immediately set
    next: null,
    subTree: null,
    // will be set synchronously right after creation
    effect: null,
    update: null,
    // will be set synchronously right after creation
    job: null,
    scope: new EffectScope(
      true
      /* detached */
    ),
    render: null,
    proxy: null,
    exposed: null,
    exposeProxy: null,
    withProxy: null,
    provides: parent ? parent.provides : Object.create(appContext.provides),
    ids: parent ? parent.ids : ["", 0, 0],
    accessCache: null,
    renderCache: [],
    // local resolved assets
    components: null,
    directives: null,
    // resolved props and emits options
    propsOptions: normalizePropsOptions(type, appContext),
    emitsOptions: normalizeEmitsOptions(type, appContext),
    // emit
    emit: null,
    // to be set immediately
    emitted: null,
    // props default value
    propsDefaults: EMPTY_OBJ,
    // inheritAttrs
    inheritAttrs: type.inheritAttrs,
    // state
    ctx: EMPTY_OBJ,
    data: EMPTY_OBJ,
    props: EMPTY_OBJ,
    attrs: EMPTY_OBJ,
    slots: EMPTY_OBJ,
    refs: EMPTY_OBJ,
    setupState: EMPTY_OBJ,
    setupContext: null,
    // suspense related
    suspense,
    suspenseId: suspense ? suspense.pendingId : 0,
    asyncDep: null,