LaconicNetwork/cosmjs-util
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Use existing bigendian parser

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This commit is contained in:
Ethan Frey 2020-08-24 22:43:47 +02:00
parent 23bafbf5b0
commit f3d5bcbeca
1 changed files with 2 additions and 9 deletions
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11
packages/stargate/src/queries/ibc.ts
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@ -1,4 +1,5 @@
import { toAscii } from "@cosmjs/encoding";
import { Uint64 } from "@cosmjs/math";
import Long from "long";
import { ibc } from "../codec";
@ -58,14 +59,6 @@ export interface IbcExtension {
};
}
// TODO: pull this into encoding helpers
function parseUint64BigEndian(bytes: Uint8Array): number {
const d = new DataView(bytes.buffer);
// Note: this will have rounding issues after 2**53, but we never hit these numbers
// when we do, support for bigints (eg. 1234n) will be stabilized
return 2 ** 32 * d.getUint32(0) + d.getUint32(4);
}
export function setupIbcExtension(base: QueryClient): IbcExtension {
// Use this service to get easy typed access to query methods
// This cannot be used to for proof verification
@ -118,7 +111,7 @@ export function setupIbcExtension(base: QueryClient): IbcExtension {
// key: https://github.com/cosmos/cosmos-sdk/blob/ef0a7344af345882729598bc2958a21143930a6b/x/ibc/24-host/keys.go#L133-L136
const key = toAscii(`seqAcks/ports/${portId}/channels/${channelId}/nextSequenceAck`);
const responseData = await base.queryVerified("ibc", key);
return responseData.length ? parseUint64BigEndian(responseData) : null;
return responseData.length ? Uint64.fromBytesBigEndian(responseData).toNumber() : null;
},
unverified: {