vueHelper.ts
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import {
watch,
computed,
WatchSource,
getCurrentInstance,
onMounted,
onUnmounted,
nextTick,
reactive,
ComponentInternalInstance,
} from 'vue';
import { error } from '../log';
export function explicitComputed<T, S>(source: WatchSource<S>, fn: () => T) {
const v = reactive<any>({ value: fn() });
watch(source, () => (v.value = fn()));
return computed<T>(() => v.value);
}
export function tryOnMounted(fn: () => void, sync = true) {
if (getCurrentInstance()) {
onMounted(fn);
} else if (sync) {
fn();
} else {
nextTick(fn);
}
}
export function tryOnUnmounted(fn: () => Promise<void> | void) {
getCurrentInstance() && onUnmounted(fn);
}
export function tryTsxEmit<T extends any = ComponentInternalInstance>(
fn: (_instance: T) => Promise<void> | void
) {
const instance = getCurrentInstance() as any;
instance && fn.call(null, instance);
}
export function isInSetup() {
if (!getCurrentInstance()) {
error('Please put useForm function in the setup function!');
}
}