35 lines
802 B
TypeScript
35 lines
802 B
TypeScript
/* eslint-disable require-atomic-updates */
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import bls from "bls-eth-wasm";
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import {NotInitializedError} from "../errors";
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type Bls = typeof bls;
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let blsGlobal: Bls | null = null;
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let blsGlobalPromise: Promise<void> | null = null;
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export async function setupBls(): Promise<void> {
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if (!blsGlobal) {
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await bls.init(bls.BLS12_381);
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blsGlobal = bls;
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}
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}
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// Cache a promise for Bls instead of Bls to make sure it is initialized only once
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export async function init(): Promise<void> {
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if (!blsGlobalPromise) {
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blsGlobalPromise = setupBls();
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}
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return blsGlobalPromise;
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}
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export function destroy(): void {
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blsGlobal = null;
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blsGlobalPromise = null;
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}
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export function getContext(): Bls {
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if (!blsGlobal) {
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throw new NotInitializedError("herumi");
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}
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return blsGlobal;
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}
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