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Allow to obtain the current tx #1432

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Allow to obtain the current tx #1432

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8985184
Allow to get the current tx
shargon Jan 30, 2020
36b3221
Change to a new syscall
shargon Feb 2, 2020
fe3848d
Clean code
shargon Feb 2, 2020
610619e
Add UT
shargon Feb 3, 2020
3610541
Merge branch 'master' into get-current-tx
vncoelho Feb 19, 2020
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21 changes: 19 additions & 2 deletions src/neo/SmartContract/InteropService.Blockchain.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -45,8 +45,25 @@ private static bool Blockchain_GetBlock(ApplicationEngine engine)

private static bool Blockchain_GetTransaction(ApplicationEngine engine)
{
ReadOnlySpan<byte> hash = engine.CurrentContext.EvaluationStack.Pop().GetSpan();
Transaction tx = engine.Snapshot.GetTransaction(new UInt256(hash));
Transaction tx;
StackItem item = engine.CurrentContext.EvaluationStack.Pop();

if (item.IsNull)
{
if (engine.ScriptContainer is Transaction senderTx)
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{
tx = senderTx;
}
else
{
return false;
}
}
else
{
tx = engine.Snapshot.GetTransaction(new UInt256(item.GetSpan()));
}

if (tx == null)
engine.CurrentContext.EvaluationStack.Push(StackItem.Null);
else
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