mirror of
https://github.com/pezkuwichain/pezkuwi-api.git
synced 2026-04-22 02:08:01 +00:00
pezkuwichain
31467f90d4
- @pezkuwi/papi-utils (rebrand of @polkadot-api/utils) - @pezkuwi/bizinikiwi-bindings (rebrand of @polkadot-api/substrate-bindings) - @pezkuwi/metadata-builders (rebrand of @polkadot-api/metadata-builders) - @pezkuwi/merkleize-metadata (rebrand of @polkadot-api/merkleize-metadata) All @polkadot-api references replaced with @pezkuwi equivalents.
67 lines
2.3 KiB
JavaScript
67 lines
2.3 KiB
JavaScript
import { u8, createDecoder, u16 } from 'scale-ts';
|
|
import '../utils/ss58-util.mjs';
|
|
import '../codecs/scale/Binary.mjs';
|
|
import '../codecs/scale/bitSequence.mjs';
|
|
import '../codecs/scale/char.mjs';
|
|
import '../codecs/scale/compact.mjs';
|
|
import { Hex } from '../codecs/scale/Hex.mjs';
|
|
import '../codecs/scale/fixed-str.mjs';
|
|
import '../codecs/scale/Variant.mjs';
|
|
import '../codecs/scale/ethAccount.mjs';
|
|
import '../codecs/scale/shaped.mjs';
|
|
import '../codecs/scale/BitSeq.mjs';
|
|
import '../codecs/blockHeader.mjs';
|
|
import '../codecs/metadata/metadata.mjs';
|
|
import '../codecs/metadata/v14.mjs';
|
|
import '../codecs/metadata/v15.mjs';
|
|
import '../codecs/metadata/v16.mjs';
|
|
import '../codecs/metadata/lookup.mjs';
|
|
import { TrieNodeHeaders } from './types.mjs';
|
|
|
|
const varHex = Hex().dec;
|
|
const allHex = Hex(Infinity).dec;
|
|
const hex32 = Hex(32).dec;
|
|
const byte = u8.dec;
|
|
const getHeader = (bytes) => {
|
|
const firstByte = byte(bytes);
|
|
let bitsLeft = 6;
|
|
const typeId = firstByte >> bitsLeft;
|
|
const type = typeId ? typeId === 1 ? TrieNodeHeaders.Leaf : typeId === 2 ? TrieNodeHeaders.Branch : TrieNodeHeaders.BranchWithVal : firstByte >> --bitsLeft ? TrieNodeHeaders.LeafWithHash : firstByte >> --bitsLeft ? TrieNodeHeaders.BranchWithHash : firstByte ? TrieNodeHeaders.Reserved : TrieNodeHeaders.Empty;
|
|
let nNibles = firstByte & 255 >> 8 - bitsLeft;
|
|
if (nNibles === 2 ** bitsLeft - 1) {
|
|
let current;
|
|
do
|
|
nNibles += current = byte(bytes);
|
|
while (current === 255);
|
|
}
|
|
return {
|
|
type,
|
|
partialKey: Hex(Math.ceil(nNibles / 2)).dec(bytes).slice(nNibles % 2 ? 3 : 2)
|
|
};
|
|
};
|
|
const trieNodeDec = createDecoder((bytes) => {
|
|
const header = getHeader(bytes);
|
|
const { type } = header;
|
|
if (type === "Empty" || type === "Reserved") return header;
|
|
if (type === "Leaf" || type === "LeafWithHash")
|
|
return {
|
|
...header,
|
|
value: allHex(bytes)
|
|
};
|
|
const bitmap = u16.dec(bytes);
|
|
const keys = [];
|
|
for (let i = 0; i < 16; i++) if (bitmap >> i & 1) keys.push(i.toString(16));
|
|
let value = null;
|
|
if (type === "BranchWithVal") value = varHex(bytes);
|
|
if (type === "BranchWithHash") value = hex32(bytes);
|
|
const result = {
|
|
...header,
|
|
children: Object.fromEntries(keys.map((key) => [key, varHex(bytes)]))
|
|
};
|
|
if (value !== null) result.value = value;
|
|
return result;
|
|
});
|
|
|
|
export { trieNodeDec };
|
|
//# sourceMappingURL=node-decoder.mjs.map
|