@markuplint/ml-spec/lib/dom-traverse/get-content-model.js

Types and schema that specs of the Markup languages for markuplint

import { getSpec } from './get-spec.js';
const cachesBySpecs = new Map();
export function getContentModel(
// eslint-disable-next-line @typescript-eslint/prefer-readonly-parameter-types
el, specs) {
    const cacheByEl = cachesBySpecs.get(specs) ?? new Map();
    const cached = cacheByEl.get(el);
    if (cached !== undefined) {
        return cached;
    }
    const spec = getSpec(el, specs);
    if (!spec) {
        cacheByEl.set(el, null);
        return null;
    }
    const conditions = spec.contentModel.conditional ?? [];
    for (const cond of conditions) {
        if (el.matches(cond.condition)) {
            cacheByEl.set(el, cond.contents);
            return cond.contents;
        }
    }
    cacheByEl.set(el, spec.contentModel.contents);
    return spec.contentModel.contents;
}