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Refuel #2444

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Merged
merged 4 commits into from
Apr 24, 2021
Merged

Refuel #2444

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ed91c7a
Refuel
erikzhang Apr 21, 2021
ca74541
Shargon's suggestion
erikzhang Apr 21, 2021
6e64809
Add UT
shargon Apr 21, 2021
5368760
Remove comments
shargon Apr 21, 2021
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10 changes: 9 additions & 1 deletion src/neo/SmartContract/ApplicationEngine.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ public partial class ApplicationEngine : ExecutionEngine

private static IApplicationEngineProvider applicationEngineProvider;
private static Dictionary<uint, InteropDescriptor> services;
private readonly long gas_amount;
private long gas_amount;
private List<NotifyEventArgs> notifications;
private List<IDisposable> disposables;
private readonly Dictionary<UInt160, int> invocationCounter = new();
Expand Down Expand Up @@ -147,6 +147,14 @@ protected internal void AddGas(long gas)
throw new InvalidOperationException("Insufficient GAS.");
}

internal void Refuel(long gas)
{
checked
{
gas_amount += gas;
}
}

protected override void OnFault(Exception ex)
{
FaultException = ex;
Expand Down
12 changes: 12 additions & 0 deletions src/neo/SmartContract/Native/GasToken.cs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,8 @@
#pragma warning disable IDE0051

using Neo.Cryptography.ECC;
using Neo.Network.P2P.Payloads;
using System;

namespace Neo.SmartContract.Native
{
Expand Down Expand Up @@ -33,5 +36,14 @@ internal override async ContractTask OnPersist(ApplicationEngine engine)
UInt160 primary = Contract.CreateSignatureRedeemScript(validators[engine.PersistingBlock.PrimaryIndex]).ToScriptHash();
await Mint(engine, primary, totalNetworkFee, false);
}

[ContractMethod(RequiredCallFlags = CallFlags.States | CallFlags.AllowNotify)]
private async ContractTask Refuel(ApplicationEngine engine, UInt160 account, long amount)
{
if (amount < 0_01000000) throw new ArgumentOutOfRangeException(nameof(amount));
if (!engine.CheckWitnessInternal(account)) throw new InvalidOperationException();
await Burn(engine, account, amount);
engine.Refuel(amount);
}
}
}