_createElement() — vue Function Reference

Architecture documentation for the _createElement() function in create-element.ts from the vue codebase.

Function typescript VueCore VDom calls 4 called by 1

Entity Profile

VueCore→ VDom→ _createElement() — vue Function Reference

Dependency Diagram

graph TD
  97662195_00aa_821a_3a03_9901c7f344e9["_createElement()"]
  4b23edff_adcb_6cfb_ca7d_b6d38b4a1921["create-element.ts"]
  97662195_00aa_821a_3a03_9901c7f344e9 -->|defined in| 4b23edff_adcb_6cfb_ca7d_b6d38b4a1921
  02c4c5f0_14bc_07b8_fddc_e3511462f997["createElement()"]
  02c4c5f0_14bc_07b8_fddc_e3511462f997 -->|calls| 97662195_00aa_821a_3a03_9901c7f344e9
  00b70ac3_a73a_7bf1_5a47_3d25ad81af5d["createEmptyVNode()"]
  97662195_00aa_821a_3a03_9901c7f344e9 -->|calls| 00b70ac3_a73a_7bf1_5a47_3d25ad81af5d
  18846da1_d4a3_5b6b_af05_795ee5beebed["createComponent()"]
  97662195_00aa_821a_3a03_9901c7f344e9 -->|calls| 18846da1_d4a3_5b6b_af05_795ee5beebed
  3079331b_0ac5_7834_22de_aa0fa32d51c5["applyNS()"]
  97662195_00aa_821a_3a03_9901c7f344e9 -->|calls| 3079331b_0ac5_7834_22de_aa0fa32d51c5
  2117e9b1_9581_28b9_1c09_0a71bae9a8c1["registerDeepBindings()"]
  97662195_00aa_821a_3a03_9901c7f344e9 -->|calls| 2117e9b1_9581_28b9_1c09_0a71bae9a8c1
  style 97662195_00aa_821a_3a03_9901c7f344e9 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/core/vdom/create-element.ts lines 46–140

export function _createElement(
  context: Component,
  tag?: string | Component | Function | Object,
  data?: VNodeData,
  children?: any,
  normalizationType?: number
): VNode | Array<VNode> {
  if (isDef(data) && isDef((data as any).__ob__)) {
    __DEV__ &&
      warn(
        `Avoid using observed data object as vnode data: ${JSON.stringify(
          data
        )}\n` + 'Always create fresh vnode data objects in each render!',
        context
      )
    return createEmptyVNode()
  }
  // object syntax in v-bind
  if (isDef(data) && isDef(data.is)) {
    tag = data.is
  }
  if (!tag) {
    // in case of component :is set to falsy value
    return createEmptyVNode()
  }
  // warn against non-primitive key
  if (__DEV__ && isDef(data) && isDef(data.key) && !isPrimitive(data.key)) {
    warn(
      'Avoid using non-primitive value as key, ' +
        'use string/number value instead.',
      context
    )
  }
  // support single function children as default scoped slot
  if (isArray(children) && isFunction(children[0])) {
    data = data || {}
    data.scopedSlots = { default: children[0] }
    children.length = 0
  }
  if (normalizationType === ALWAYS_NORMALIZE) {
    children = normalizeChildren(children)
  } else if (normalizationType === SIMPLE_NORMALIZE) {
    children = simpleNormalizeChildren(children)
  }
  let vnode, ns
  if (typeof tag === 'string') {
    let Ctor
    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag)
    if (config.isReservedTag(tag)) {
      // platform built-in elements
      if (
        __DEV__ &&
        isDef(data) &&
        isDef(data.nativeOn) &&
        data.tag !== 'component'
      ) {
        warn(
          `The .native modifier for v-on is only valid on components but it was used on <${tag}>.`,
          context
        )
      }
      vnode = new VNode(
        config.parsePlatformTagName(tag),
        data,
        children,
        undefined,
        undefined,
        context
      )
    } else if (
      (!data || !data.pre) &&
      isDef((Ctor = resolveAsset(context.$options, 'components', tag)))
    ) {
      // component
      vnode = createComponent(Ctor, data, context, children, tag)
    } else {
      // unknown or unlisted namespaced elements
      // check at runtime because it may get assigned a namespace when its
      // parent normalizes children
      vnode = new VNode(tag, data, children, undefined, undefined, context)
    }