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Merged
erikzhang merged 1 commit into from
Jan 12, 2026
Merged

Add GetAssetsOfOwner #4425

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20 changes: 20 additions & 0 deletions src/Neo/SmartContract/Native/TokenManagement.cs
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Expand Up @@ -10,6 +10,7 @@
// modifications are permitted.

using Neo.Persistence;
using Neo.SmartContract.Iterators;
using System.Numerics;

namespace Neo.SmartContract.Native;
Expand Down Expand Up @@ -68,6 +69,25 @@ public BigInteger BalanceOf(IReadOnlyStore snapshot, UInt160 assetId, UInt160 ac
return accountState.Balance;
}

/// <summary>
/// Retrieves an iterator that enumerates all assets owned by the specified account from the provided data store
/// snapshot.
/// </summary>
/// <remarks>The returned iterator provides read-only access to asset data as of the given snapshot.
/// Iteration order is not guaranteed. This method does not modify the store.</remarks>
/// <param name="snapshot">The read-only store snapshot to query for asset ownership data.</param>
/// <param name="account">The account identifier for which to retrieve owned assets. Must be a valid 160-bit address.</param>
/// <returns>An iterator over the assets associated with the specified account. The iterator will be empty if the account
/// owns no assets.</returns>
[ContractMethod(CpuFee = 1 << 22, RequiredCallFlags = CallFlags.ReadStates)]
public IIterator GetAssetsOfOwner(IReadOnlyStore snapshot, UInt160 account)
{
const FindOptions options = FindOptions.RemovePrefix | FindOptions.DeserializeValues;
var prefixKey = CreateStorageKey(Prefix_AccountState, account);
var enumerator = snapshot.Find(prefixKey).GetEnumerator();
return new StorageIterator(enumerator, 21, options);
}

/// <summary>
/// Computes a unique asset id from the token owner's script hash and the token name.
/// </summary>
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2 changes: 1 addition & 1 deletion tests/Neo.UnitTests/SmartContract/Native/UT_NativeContract.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,7 @@ public void TestSetup()
{"OracleContract", """{"id":-9,"updatecounter":0,"hash":"0xfe924b7cfe89ddd271abaf7210a80a7e11178758","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":2663858513},"manifest":{"name":"OracleContract","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"finish","parameters":[],"returntype":"Void","offset":0,"safe":false},{"name":"getPrice","parameters":[],"returntype":"Integer","offset":7,"safe":true},{"name":"request","parameters":[{"name":"url","type":"String"},{"name":"filter","type":"String"},{"name":"callback","type":"String"},{"name":"userData","type":"Any"},{"name":"gasForResponse","type":"Integer"}],"returntype":"Void","offset":14,"safe":false},{"name":"setPrice","parameters":[{"name":"price","type":"Integer"}],"returntype":"Void","offset":21,"safe":false},{"name":"verify","parameters":[],"returntype":"Boolean","offset":28,"safe":true}],"events":[{"name":"OracleRequest","parameters":[{"name":"Id","type":"Integer"},{"name":"RequestContract","type":"Hash160"},{"name":"Url","type":"String"},{"name":"Filter","type":"String"}]},{"name":"OracleResponse","parameters":[{"name":"Id","type":"Integer"},{"name":"OriginalTx","type":"Hash256"}]}]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
{"Notary", """{"id":-10,"updatecounter":0,"hash":"0xc1e14f19c3e60d0b9244d06dd7ba9b113135ec3b","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":1110259869},"manifest":{"name":"Notary","groups":[],"features":{},"supportedstandards":["NEP-27"],"abi":{"methods":[{"name":"_onPayment","parameters":[{"name":"assetId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Void","offset":0,"safe":false},{"name":"balanceOf","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":7,"safe":true},{"name":"expirationOf","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":14,"safe":true},{"name":"getMaxNotValidBeforeDelta","parameters":[],"returntype":"Integer","offset":21,"safe":true},{"name":"lockDepositUntil","parameters":[{"name":"account","type":"Hash160"},{"name":"till","type":"Integer"}],"returntype":"Boolean","offset":28,"safe":false},{"name":"setMaxNotValidBeforeDelta","parameters":[{"name":"value","type":"Integer"}],"returntype":"Void","offset":35,"safe":false},{"name":"verify","parameters":[{"name":"signature","type":"ByteArray"}],"returntype":"Boolean","offset":42,"safe":true},{"name":"withdraw","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"}],"returntype":"Boolean","offset":49,"safe":false}],"events":[]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
{"Treasury", """{"id":-11,"updatecounter":0,"hash":"0x156326f25b1b5d839a4d326aeaa75383c9563ac1","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dA","checksum":1592866325},"manifest":{"name":"Treasury","groups":[],"features":{},"supportedstandards":["NEP-26","NEP-27"],"abi":{"methods":[{"name":"onNEP11Payment","parameters":[{"name":"from","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"tokenId","type":"ByteArray"},{"name":"data","type":"Any"}],"returntype":"Void","offset":0,"safe":true},{"name":"onNEP17Payment","parameters":[{"name":"from","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Void","offset":7,"safe":true},{"name":"verify","parameters":[],"returntype":"Boolean","offset":14,"safe":true}],"events":[]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""},
{"TokenManagement", """{"id":-12,"updatecounter":0,"hash":"0xae00c57daeb20f9b6545f65a018f44a8a40e049f","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQA==","checksum":1841570703},"manifest":{"name":"TokenManagement","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"balanceOf","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":0,"safe":true},{"name":"burn","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"},{"name":"amount","type":"Integer"}],"returntype":"Void","offset":7,"safe":false},{"name":"burnNFT","parameters":[{"name":"uniqueId","type":"Hash160"}],"returntype":"Void","offset":14,"safe":false},{"name":"create","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"},{"name":"decimals","type":"Integer"}],"returntype":"Hash160","offset":21,"safe":false},{"name":"create","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"},{"name":"decimals","type":"Integer"},{"name":"maxSupply","type":"Integer"}],"returntype":"Hash160","offset":28,"safe":false},{"name":"createNonFungible","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"}],"returntype":"Hash160","offset":35,"safe":false},{"name":"createNonFungible","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"},{"name":"maxSupply","type":"Integer"}],"returntype":"Hash160","offset":42,"safe":false},{"name":"getNFTInfo","parameters":[{"name":"uniqueId","type":"Hash160"}],"returntype":"Array","offset":49,"safe":true},{"name":"getNFTs","parameters":[{"name":"assetId","type":"Hash160"}],"returntype":"InteropInterface","offset":56,"safe":true},{"name":"getNFTsOfOwner","parameters":[{"name":"account","type":"Hash160"}],"returntype":"InteropInterface","offset":63,"safe":true},{"name":"getTokenInfo","parameters":[{"name":"assetId","type":"Hash160"}],"returntype":"Array","offset":70,"safe":true},{"name":"mint","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"},{"name":"amount","type":"Integer"}],"returntype":"Void","offset":77,"safe":false},{"name":"mintNFT","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"}],"returntype":"Hash160","offset":84,"safe":false},{"name":"mintNFT","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"},{"name":"properties","type":"Map"}],"returntype":"Hash160","offset":91,"safe":false},{"name":"transfer","parameters":[{"name":"assetId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":98,"safe":false},{"name":"transferNFT","parameters":[{"name":"uniqueId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":105,"safe":false}],"events":[{"name":"Created","parameters":[{"name":"assetId","type":"Hash160"},{"name":"type","type":"Integer"}]},{"name":"Transfer","parameters":[{"name":"assetId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"}]},{"name":"NFTTransfer","parameters":[{"name":"uniqueId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"}]}]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}""" },
{"TokenManagement", """{"id":-12,"updatecounter":0,"hash":"0xae00c57daeb20f9b6545f65a018f44a8a40e049f","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0A=","checksum":588003825},"manifest":{"name":"TokenManagement","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"balanceOf","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":0,"safe":true},{"name":"burn","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"},{"name":"amount","type":"Integer"}],"returntype":"Void","offset":7,"safe":false},{"name":"burnNFT","parameters":[{"name":"uniqueId","type":"Hash160"}],"returntype":"Void","offset":14,"safe":false},{"name":"create","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"},{"name":"decimals","type":"Integer"}],"returntype":"Hash160","offset":21,"safe":false},{"name":"create","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"},{"name":"decimals","type":"Integer"},{"name":"maxSupply","type":"Integer"}],"returntype":"Hash160","offset":28,"safe":false},{"name":"createNonFungible","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"}],"returntype":"Hash160","offset":35,"safe":false},{"name":"createNonFungible","parameters":[{"name":"name","type":"String"},{"name":"symbol","type":"String"},{"name":"maxSupply","type":"Integer"}],"returntype":"Hash160","offset":42,"safe":false},{"name":"getAssetsOfOwner","parameters":[{"name":"account","type":"Hash160"}],"returntype":"InteropInterface","offset":49,"safe":true},{"name":"getNFTInfo","parameters":[{"name":"uniqueId","type":"Hash160"}],"returntype":"Array","offset":56,"safe":true},{"name":"getNFTs","parameters":[{"name":"assetId","type":"Hash160"}],"returntype":"InteropInterface","offset":63,"safe":true},{"name":"getNFTsOfOwner","parameters":[{"name":"account","type":"Hash160"}],"returntype":"InteropInterface","offset":70,"safe":true},{"name":"getTokenInfo","parameters":[{"name":"assetId","type":"Hash160"}],"returntype":"Array","offset":77,"safe":true},{"name":"mint","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"},{"name":"amount","type":"Integer"}],"returntype":"Void","offset":84,"safe":false},{"name":"mintNFT","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"}],"returntype":"Hash160","offset":91,"safe":false},{"name":"mintNFT","parameters":[{"name":"assetId","type":"Hash160"},{"name":"account","type":"Hash160"},{"name":"properties","type":"Map"}],"returntype":"Hash160","offset":98,"safe":false},{"name":"transfer","parameters":[{"name":"assetId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":105,"safe":false},{"name":"transferNFT","parameters":[{"name":"uniqueId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":112,"safe":false}],"events":[{"name":"Created","parameters":[{"name":"assetId","type":"Hash160"},{"name":"type","type":"Integer"}]},{"name":"Transfer","parameters":[{"name":"assetId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"}]},{"name":"NFTTransfer","parameters":[{"name":"uniqueId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"}]}]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}""" },
{"Governance","""{"id":-13,"updatecounter":0,"hash":"0x4ce7159d05c667940413a58c25bf63063570ca67","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQA==","checksum":3261162603},"manifest":{"name":"Governance","groups":[],"features":{},"supportedstandards":[],"abi":{"methods":[{"name":"_onTransfer","parameters":[{"name":"assetId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Void","offset":0,"safe":true}],"events":[]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}""" },
{"NeoToken", """{"id":-14,"updatecounter":0,"hash":"0xef4073a0f2b305a38ec4050e4d3d28bc40ea63f5","nef":{"magic":860243278,"compiler":"neo-core-v3.0","source":"","tokens":[],"script":"EEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dAEEEa93tnQBBBGvd7Z0AQQRr3e2dA","checksum":1991619121},"manifest":{"name":"NeoToken","groups":[],"features":{},"supportedstandards":["NEP-17","NEP-27"],"abi":{"methods":[{"name":"_onPayment","parameters":[{"name":"assetId","type":"Hash160"},{"name":"from","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Void","offset":0,"safe":false},{"name":"balanceOf","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Integer","offset":7,"safe":true},{"name":"decimals","parameters":[],"returntype":"Integer","offset":14,"safe":true},{"name":"getAccountState","parameters":[{"name":"account","type":"Hash160"}],"returntype":"Array","offset":21,"safe":true},{"name":"getAllCandidates","parameters":[],"returntype":"InteropInterface","offset":28,"safe":true},{"name":"getCandidateVote","parameters":[{"name":"pubKey","type":"PublicKey"}],"returntype":"Integer","offset":35,"safe":true},{"name":"getCandidates","parameters":[],"returntype":"Array","offset":42,"safe":true},{"name":"getCommittee","parameters":[],"returntype":"Array","offset":49,"safe":true},{"name":"getCommitteeAddress","parameters":[],"returntype":"Hash160","offset":56,"safe":true},{"name":"getGasPerBlock","parameters":[],"returntype":"Integer","offset":63,"safe":true},{"name":"getNextBlockValidators","parameters":[],"returntype":"Array","offset":70,"safe":true},{"name":"getRegisterPrice","parameters":[],"returntype":"Integer","offset":77,"safe":true},{"name":"registerCandidate","parameters":[{"name":"pubkey","type":"PublicKey"}],"returntype":"Boolean","offset":84,"safe":false},{"name":"setGasPerBlock","parameters":[{"name":"gasPerBlock","type":"Integer"}],"returntype":"Void","offset":91,"safe":false},{"name":"setRegisterPrice","parameters":[{"name":"registerPrice","type":"Integer"}],"returntype":"Void","offset":98,"safe":false},{"name":"symbol","parameters":[],"returntype":"String","offset":105,"safe":true},{"name":"totalSupply","parameters":[],"returntype":"Integer","offset":112,"safe":true},{"name":"transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"},{"name":"data","type":"Any"}],"returntype":"Boolean","offset":119,"safe":false},{"name":"unclaimedGas","parameters":[{"name":"account","type":"Hash160"},{"name":"end","type":"Integer"}],"returntype":"Integer","offset":126,"safe":true},{"name":"unregisterCandidate","parameters":[{"name":"pubkey","type":"PublicKey"}],"returntype":"Boolean","offset":133,"safe":false},{"name":"vote","parameters":[{"name":"account","type":"Hash160"},{"name":"voteTo","type":"PublicKey"}],"returntype":"Boolean","offset":140,"safe":false}],"events":[{"name":"Transfer","parameters":[{"name":"from","type":"Hash160"},{"name":"to","type":"Hash160"},{"name":"amount","type":"Integer"}]},{"name":"CandidateStateChanged","parameters":[{"name":"pubkey","type":"PublicKey"},{"name":"registered","type":"Boolean"},{"name":"votes","type":"Integer"}]},{"name":"Vote","parameters":[{"name":"account","type":"Hash160"},{"name":"from","type":"PublicKey"},{"name":"to","type":"PublicKey"},{"name":"amount","type":"Integer"}]},{"name":"CommitteeChanged","parameters":[{"name":"old","type":"Array"},{"name":"new","type":"Array"}]}]},"permissions":[{"contract":"*","methods":"*"}],"trusts":[],"extra":null}}"""}
};
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