Function mapCompatDirectiveHook

packages/runtime-core/src/compat/customDirective.ts:26–60

(
  name: keyof ObjectDirective,
  dir: ObjectDirective & LegacyDirective,
  instance: ComponentInternalInstance | null,
)

}

export function mapCompatDirectiveHook(
  name: keyof ObjectDirective,
  dir: ObjectDirective & LegacyDirective,
  instance: ComponentInternalInstance | null,
): DirectiveHook | DirectiveHook[] | undefined {
  const mappedName = legacyDirectiveHookMap[name]
  if (mappedName) {
    if (isArray(mappedName)) {
      const hook: DirectiveHook[] = []
      mappedName.forEach(mapped => {
        const mappedHook = dir[mapped]
        if (mappedHook) {
          softAssertCompatEnabled(
            DeprecationTypes.CUSTOM_DIR,
            instance,
            mapped,
            name,
          )
          hook.push(mappedHook)
        }
      })
      return hook.length ? hook : undefined
    } else {
      if (dir[mappedName]) {
        softAssertCompatEnabled(
          DeprecationTypes.CUSTOM_DIR,
          instance,
          mappedName,
          name,
        )
      }
      return dir[mappedName]
    }
  }
}