inlinable-runtime/lib/sentinel.js

JavaScript code inlining runtime utilities

/** Sentinel module, only meant to be imported directly from `inlinable` */
/** Returns true if code is currently being inlined. */
export function isInlining() {
    // TODO: We could add more granularity, for example exposing the path of the
    // file currently being inlined as optional argument to `isInlining`.
    return globalThis.__isInlining != null;
}
export async function inlining(lp, fn) {
    let state = globalThis.__isInlining;
    if (!state) {
        state = new Set();
        globalThis.__isInlining = state;
    }
    if (state.has(lp)) {
        throw new Error(`Already inlining ${lp}`);
    }
    state.add(lp);
    try {
        await fn();
    }
    finally {
        state.delete(lp);
        if (!state.size) {
            delete globalThis.__isInlining;
        }
    }
}