taggedjs/js/render/softDestroySupport.function.js

tagged template reactive html

import { getChildTagsToSoftDestroy, unsubscribeFrom } from '../tag/destroyContexts.function.js';
import { getNewGlobal } from '../tag/update/getNewGlobal.function.js';
import { smartRemoveKids } from '../tag/smartRemoveKids.function.js';
/** used when a tag swaps content returned */
export function softDestroySupport(lastSupport) {
    const context = lastSupport.context;
    const global = context.global;
    const contexts = context.contexts;
    if (contexts) {
        const { subs, tags } = getChildTagsToSoftDestroy(contexts);
        for (const child of tags) {
            const cGlobal = child.context.global;
            if (cGlobal.deleted === true) {
                return;
            }
            softDestroyOne(child.context);
        }
        const mySubs = global.subscriptions;
        if (mySubs) {
            subs.forEach(unsubscribeFrom);
        }
    }
    softDestroyOne(context);
    getNewGlobal(context);
}
function softDestroyOne(context) {
    context.global.deleted = true; // the children are truly destroyed but the main support will be swapped
    smartRemoveKids(context, []);
    delete context.contexts;
}
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