vue3-yuanma/packages/shared/src/slotFlags.ts
2020-11-30 15:19:32 -05:00

31 lines
980 B
TypeScript

export const enum SlotFlags {
/**
* Stable slots that only reference slot props or context state. The slot
* can fully capture its own dependencies so when passed down the parent won't
* need to force the child to update.
*/
STABLE = 1,
/**
* Slots that reference scope variables (v-for or an outer slot prop), or
* has conditional structure (v-if, v-for). The parent will need to force
* the child to update because the slot does not fully capture its dependencies.
*/
DYNAMIC = 2,
/**
* `<slot/>` being forwarded into a child component. Whether the parent needs
* to update the child is dependent on what kind of slots the parent itself
* received. This has to be refined at runtime, when the child's vnode
* is being created (in `normalizeChildren`)
*/
FORWARDED = 3
}
/**
* Dev only
*/
export const slotFlagsText = {
[SlotFlags.STABLE]: 'STABLE',
[SlotFlags.DYNAMIC]: 'DYNAMIC',
[SlotFlags.FORWARDED]: 'FORWARDED'
}