Mostly it's about Go 1.22+ syntax with ranging over integers, but it also
prefers ranging over slices where possible (it makes code a little better to
read).
Notice that we have a number of dangerous loops where slices are mutated
during loop execution, many of these can't be converted since we need proper
length evalutation at every iteration.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
It's slightly less efficient (all comparisons are always made), but for
strings/ints it's negligible performance difference, while the code looks a
tiny bit better.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
"Compare" is almost a standard one now, although math/big uses Cmp for historic
reasons (keys.PublicKey does so too). This also fixes Fixed8 since int64 to int
conversion is lossy.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
* use slices.BinarySearchFunc with its boolean status
* use slices.Insert/slices.Delete, tnis can be a little less efficient, but it
frees the memory faster and this code is more I/O (networking) bound to care
about 1-3%
Signed-off-by: Roman Khimov <roman@nspcc.ru>
Looks like it was wrong since 9592f3e052 because
sort.Search can return an index that is not equal to the target.
slices.BinarySearchFunc can do that too, but it also return a very convenient
boolean status that can be used.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
This also removes bigint.FromBytesUnsigned(), it's not used very often and
it's somewhat misleading in the bigint package (which is supposed to use a
very specific enconding).
Signed-off-by: Roman Khimov <roman@nspcc.ru>
Linter is updated up to v1.60.1, the following issue is fixed:
```
predeclared variable max has same name as predeclared identifier
```
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
1. Bind NewDeployTxBy to Executor to be able to use
(*Executor).AddSystemFee.
2. Replace pre-defined constant deployment fee by calculated one.
This change is needed to be able to properly collect coverage for
_deploy method of a contract via neotest coverage. Ref.
https://github.com/nspcc-dev/neo-go/pull/3462#pullrequestreview-2229601870.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Metrics should be updated once per action, currently removeInternal is
used by Add and Remove, the first one updates them in the end anyway and
remove should do the same.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
This is a bad one.
$ ./bin/neo-go contract testinvokefunction -r https://rpc10.n3.nspcc.ru:10331 0xda65b600f7124ce6c79950c1772a36403104f2be getBlock 5762000
{
"state": "HALT",
"gasconsumed": "202812",
"script": "AtDrVwARwB8MCGdldEJsb2NrDBS+8gQxQDYqd8FQmcfmTBL3ALZl2kFifVtS",
"stack": [
{
"type": "Array",
"value": [
{
"type": "ByteString",
"value": "vq5IPTPEDRhz0JA4cQKIa6/o97pnJt/HfVkDRknd1rg="
},
{
"type": "Integer",
"value": "0"
},
{
"type": "ByteString",
"value": "zFYF3LGaTKdbqVX99shaBUzTq9YjXb0jaPMjk2jdSP4="
},
{
"type": "ByteString",
"value": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
},
{
"type": "Integer",
"value": "1722060076994"
},
{
"type": "Integer",
"value": "5293295626238767595"
},
{
"type": "Integer",
"value": "5762000"
},
{
"type": "ByteString",
"value": "LIt05Fpxhl/kXMX3EAGIASyOSQs="
},
{
"type": "Integer",
"value": "0"
}
]
}
],
"exception": null,
"notifications": []
}
$ ./bin/neo-go contract testinvokefunction -r http://seed3.neo.org:10332 0xda65b600f7124ce6c79950c1772a36403104f2be getBlock 5762000
{
"state": "HALT",
"gasconsumed": "202812",
"script": "AtDrVwARwB8MCGdldEJsb2NrDBS+8gQxQDYqd8FQmcfmTBL3ALZl2kFifVtS",
"stack": [
{
"type": "Array",
"value": [
{
"type": "ByteString",
"value": "vq5IPTPEDRhz0JA4cQKIa6/o97pnJt/HfVkDRknd1rg="
},
{
"type": "Integer",
"value": "0"
},
{
"type": "ByteString",
"value": "zFYF3LGaTKdbqVX99shaBUzTq9YjXb0jaPMjk2jdSP4="
},
{
"type": "ByteString",
"value": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
},
{
"type": "Integer",
"value": "1722060076994"
},
{
"type": "Integer",
"value": "5293295626238767595"
},
{
"type": "Integer",
"value": "5762000"
},
{
"type": "Integer",
"value": "6"
},
{
"type": "ByteString",
"value": "LIt05Fpxhl/kXMX3EAGIASyOSQs="
},
{
"type": "Integer",
"value": "0"
}
]
}
],
"exception": null,
"notifications": []
}
9 fields vs 10, notice the primary index right after the block number.
Back when ac527650eb initially added Ledger I've
used https://github.com/neo-project/neo/pull/2215 as a reference and it was
correct (no primary index). But then https://github.com/neo-project/neo/pull/2296
came into the C# codebase and while it looked like a pure refactoring it
actually did add the primary index as well and this wasn't noticed. It wasn't
noticed even when 3a4e0caeb8 had touched some
nearby code. In short, we had a completely wrong implementation of this call
for more than three years. But looks like it's not a very popular one.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
Refs. #3522. The core problem is the same as for groups/features: we can't
allow empty trusts when they're unmarshalled from JSON. But unlike others we
can't easily differentiate missing any value with other cases because the
default value for WildPermissionDescs is a valid thing. Adding an additional
field makes it invalid and we can build around it. Other options are
implementing custom UnmarshalJSON for Manifest (too much for this) or making
Trusts a pointer (an option, but can fail in too many ways).
Signed-off-by: Roman Khimov <roman@nspcc.ru>
It's needed to give user a hint about what's wrong with the witness
during `calculatenetworkfee` RPC request processing.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
It should be sufficient to retrieve next block validators once per
updateExtensibleWhitelist call and then reuse this value. `nextVals`
copy intentionally omitted since the only change that
smartcontract.CreateDefaultMultiSigRedeemScript performs over the
`nextVals` list is sorting.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
It's not correct to use an updated contract state got from Management to
check for the allowed method call. We need to use manifest from the
currently executing context for that. It may be critical for cases when
executing contract is being updated firstly, and after that calls
another contract. So we need an old (executing) contract manifest for
this check.
This change likely does not affect the mainnet's state since it's hard
to meet the trigger criteria, but I'd put it under the hardfork anyway.
Ref. https://github.com/neo-project/neo/pull/3290.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
This test ensures that NeoGo node doesn't have the DeepCopy problem
described in https://github.com/neo-project/neo/issues/3300 and fixed in
https://github.com/neo-project/neo/pull/3301. This problem leads to the
fact that Notifications items are not being properly refcounted by C#
node which leads to possibility to build an enormously large object on
stack. Go node doesn't have this problem.
The reason (at least, as I understand it) is in the fact that C# node
performs objects refcounting inside the DeepCopy even if the object
itself is not yet on stack. I.e. System.Runtime.Notify handler
immediately adds references to the notification argumetns inside
DeepCopy:
b1d27f0189/src/Neo.VM/Types/Array.cs (L108)b1d27f0189/src/Neo.VM/Types/Array.cs (L75)
Whereas Go node just performs the honest DeepCopy without references counting:
b66cea5ccc/pkg/vm/stackitem/item.go (L1223)
Going further, C# node clears refs for notification arguments (for array
and underlying array items). System.Runtime.GetNotifications pushes the
notificaiton args array back on stack and increments counter only for
the external array, not for its arguments. Which results in negative
refcounter once notificaiton is removed from the stack. The fix itself
(f471c0542d/src/Neo/SmartContract/NotifyEventArgs.cs (L84))
doesn't need to be ported to NeoGo because Go node adds object to the
refcounter only at the moment when it's being pushed to stack by
System.Runtime.GetNotifications handler. This object is treated as new
object since it was deepcopied earlier by System.Runtime.Notify handler:
b66cea5ccc/pkg/vm/stack.go (L178).
Thus, no functoinal changes from the NeoGo side. And we won't
intentionally break our node to follow C# pre-Domovoi invalid behaviour.
Close#3484, close#3482.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Do not use the updated contract state from native Management to perform
permissions checks. We need to use the currently executing state
instead got from the currently executing VM context until context is
unloaded.
Close#3471.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
