Function buildDefaultSlotProperty

packages/compiler-core/src/transforms/vSlot.ts:313–322

(
      props: ExpressionNode | undefined,
      children: TemplateChildNode[],
    )

  if (!onComponentSlot) {
    const buildDefaultSlotProperty = (
      props: ExpressionNode | undefined,
      children: TemplateChildNode[],
    ) => {
      const fn = buildSlotFn(props, undefined, children, loc)
      if (__COMPAT__ && context.compatConfig) {
        fn.isNonScopedSlot = true
      }
      return createObjectProperty(`default`, fn)
    }

    if (!hasTemplateSlots) {
      // implicit default slot (on component)