39 lines
1.4 KiB
TypeScript
39 lines
1.4 KiB
TypeScript
import {IBls, Implementation} from "./interface.js";
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export {IBls, Implementation, CoordType, PointFormat} from "./interface.js";
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// TODO: Use a Proxy for example to throw an error if it's not initialized yet
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export const bls: IBls = {} as IBls;
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export default bls;
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// Thanks https://github.com/iliakan/detect-node/blob/master/index.esm.js
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const isNode = Object.prototype.toString.call(typeof process !== "undefined" ? process : 0) === "[object process]";
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async function getImplementation(impl: Implementation = "herumi"): Promise<IBls> {
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switch (impl) {
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case "herumi": {
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const blsHerumi = (await import("./herumi/index.js")).bls;
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await blsHerumi.init();
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return blsHerumi;
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}
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case "blst-native":
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// Lazy import native bindings to prevent automatically importing binding.node files
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if (!isNode) {
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throw Error("blst-native is only supported in NodeJS");
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}
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return (await import("./blst-native/index.js")).bls;
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default:
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throw new Error(`Unsupported implementation - ${impl}`);
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}
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}
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export async function init(impl: Implementation): Promise<void> {
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// Using Object.assign instead of just bls = getImplementation()
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// because otherwise the default import breaks. The reference is lost
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// and the imported object is still undefined after calling init()
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const blsImpl = await getImplementation(impl);
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Object.assign(bls, blsImpl);
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}
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