@dash0/sdk-web/dist/modules/utils/wrap.js

Dash0's Web SDK to collect telemetry from end-users' web browsers

import { debug } from "./debug";
const INSTRUMENTED_BY_DASH0_SYMBOL = Symbol.for("INSTRUMENTED_BY_DASH0");
function isAlreadyInstrumented(objOrFunction) {
    // @ts-expect-error -- typescript does not know about this hidden marker and we're not going to tell it 🤫
    return objOrFunction[INSTRUMENTED_BY_DASH0_SYMBOL] === true;
}
function markAsInstrumented(objOrFunction) {
    // @ts-expect-error -- typescript does not know about this hidden marker and we're not going to tell it 🤫
    objOrFunction[INSTRUMENTED_BY_DASH0_SYMBOL] = true;
}
export function wrap(module, target, wrapper) {
    const original = module[target];
    if (!original) {
        debug(`${String(target)} is not defined, unable to instrument`);
        return;
    }
    if (isAlreadyInstrumented(original)) {
        debug(`${String(target)} has already been instrumented, skipping`);
    }
    markAsInstrumented(original);
    module[target] = wrapper(original);
}