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Author SHA1 Message Date
Roman Khimov
1b83dc2476 *: improve for loop syntax 
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>
 2024-08-30 21:45:18 +03:00
Roman Khimov
a30792dbb6 *: use slices.Index/slices.Contains where appropriate 
This doesn't touch performance-sensitive parts, but simplifies a lot of code.

Signed-off-by: Roman Khimov <roman@nspcc.ru>
 2024-08-27 08:24:52 +03:00
Roman Khimov
93ecd61079 stackitem: microoptimize memory management of Make() 
Preallocate as much as needed.

Signed-off-by: Roman Khimov <roman@nspcc.ru>
 2024-08-27 08:24:52 +03:00
Roman Khimov
9e112fc024 *: use slices.Clone instead of make/copy 
It's much easier this way.

Signed-off-by: Roman Khimov <roman@nspcc.ru>
 2024-08-24 22:41:48 +03:00
Roman Khimov
d9ee31fb52 *: use clear() to clear maps 
Supposedly more efficient since we can avoid some memory management dances.

Memory pool agrees:

goos: linux
goarch: amd64
pkg: github.com/nspcc-dev/neo-go/pkg/core/mempool
cpu: AMD Ryzen 7 PRO 7840U w/ Radeon 780M Graphics
                       │  pool.old   │              pool.new               │
                       │   sec/op    │   sec/op     vs base                │
Pool/one,_incr_fee-16    12.44m ± 1%   12.51m ± 1%   +0.55% (p=0.029 n=10)
Pool/many,_same_fee-16   4.960m ± 2%   3.100m ± 1%  -37.50% (p=0.000 n=10)
Pool/many,_incr_fee-16   16.03m ± 2%   14.11m ± 1%  -12.00% (p=0.000 n=10)
Pool/one,_same_fee-16                  1.742m ± 1%
geomean                  9.964m        5.556m       -17.92%

                       │    pool.old     │                pool.new                │
                       │      B/op       │      B/op       vs base                │
Pool/one,_incr_fee-16     8.117Ki ± 120%   7.101Ki ± 128%  -12.52% (p=0.022 n=10)
Pool/many,_same_fee-16   3941.2Ki ±   0%   805.4Ki ±   0%  -79.56% (p=0.000 n=10)
Pool/many,_incr_fee-16   3936.2Ki ±   0%   829.8Ki ±   0%  -78.92% (p=0.000 n=10)
Pool/one,_same_fee-16                      12.98Ki ±  10%
geomean                   501.2Ki          88.59Ki         -66.47%

                       │   pool.old   │               pool.new               │
                       │  allocs/op   │  allocs/op    vs base                │
Pool/one,_incr_fee-16     28.00 ± 21%    24.00 ± 21%  -14.29% (p=0.002 n=10)
Pool/many,_same_fee-16   40.38k ±  0%   40.03k ±  0%   -0.86% (p=0.000 n=10)
Pool/many,_incr_fee-16   40.38k ±  0%   40.04k ±  0%   -0.85% (p=0.000 n=10)
Pool/one,_same_fee-16                    23.00 ±  4%
geomean                  3.574k          969.8         -5.55%

Signed-off-by: Roman Khimov <roman@nspcc.ru>
 2024-08-24 22:41:48 +03:00
Roman Khimov
1c1d77c9b8 *: make use of min/max where appropriate 
Signed-off-by: Roman Khimov <roman@nspcc.ru>
 2024-08-23 22:11:29 +03:00
Anna Shaleva
55fa12355e stackitem: extend Make() with []string 
Allow []string to be converted to stackitem.Item.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2024-06-11 17:50:53 +03:00
Anna Shaleva
8162e9033d *: replace slice.Copy with bytes.Clone 
And refactor some code a bit, don't use bytes.Clone where type-specific
helpers may be used instead.

Close #2907.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2024-03-05 13:54:10 +03:00
Anna Shaleva
0c6627f13d *: use multierror wrapping where possible 
Revert 5f6c01336c, remove all multierror
related nolint comments and use multierror wrapping instead.

Close #2906.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2024-03-05 13:54:10 +03:00
Anna Shaleva
387c411da0 vm: add default limit to SI serialization context 
Follow the notion of https://github.com/neo-project/neo/pull/2948.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-11-22 19:39:01 +03:00
Anna Shaleva
b0cdae4666 vm: reduce maximum stckitem size 
To prevent possible DoS. Port the https://github.com/neo-project/neo-vm/pull/514,
close #3170.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-11-13 20:40:30 +03:00
Anna Shaleva
39ce3a9d1d vm: fix linter warning 
Fix the following linter warning:
```
indent-error-flow: if block ends with a return statement, so drop this else and outdent its block (move short variable declaration to its own line if necessary) (revive)
```

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-10-20 17:22:21 +03:00
Anna Shaleva
624f193f94 vm: move JNumbers parsing precision under HFBasilisk 
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-08-10 13:14:16 +03:00
Anna Shaleva
d90608ddbf vm: increase BigInt parsing precision 
Follow the https://github.com/neo-project/neo/pull/2883.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-08-10 13:14:16 +03:00
Anna Shaleva
4be692193e vm: allow parsing scientific JSON numbers 
52-bit precision is not enough for our 256-bit VM, but this value
matches the reference implementation, see the
https://github.com/neo-project/neo/issues/2879.

MaxIntegerPrec will be increased (or even removed) as soon as the
ref. issue is resolved.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-07-31 17:19:05 +03:00
Anna Shaleva
71bcb8bade native: allow to use EQUAL opcode for BLS12-381 points comparison 
That's the way how C# node handles equality checks for stackitem.Interop types
for these points. Ref. https://github.com/nspcc-dev/neo-go/issues/3002#issuecomment-1591220501.

Along the way, add GT case for CryptoLib's bls12381Equal method. It should be there since #2940.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-06-15 15:00:27 +03:00
Anna Shaleva
8e085d3ca3 vm: allow to make stackitem from *Uint160 and *Uint256 
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
 2023-05-17 11:16:32 +03:00
Roman Khimov
433275265f *: use require.ErrorIs instead of require.True(t, error.Is()) 
This is just a much better way to do the same thing. Inspired by
nspcc-dev/neofs-sdk-go#407.

Signed-off-by: Roman Khimov <roman@nspcc.ru>
 2023-05-04 17:03:47 +03:00
Anna Shaleva
6b21ad9922 *: replace interface{} with any keyword 
Everywhere including examples, external interop APIs, bindings generators
code and in other valuable places. A couple of `interface{}` usages are
intentionally left in the CHANGELOG.md, documentation and tests.
 2023-04-04 13:22:42 +03:00
Anna Shaleva
5f6c01336c *: add nolint comments to multiple errors wrapping 
To be enabled after go 1.20 support is added.
 2023-03-15 16:38:01 +03:00
Anna Shaleva
25ed5fcd60 vm: allow custom limit duing Map\Array\Struct deserialization 2023-02-08 10:58:55 +03:00
Anna Shaleva
15fa65d30f vm: export stackitem's deserContext 2023-02-08 10:58:54 +03:00
Roman Khimov
9ba18b5dfa stackitem: serialize/deserialize pointers, fix #2815 
They of course can't be serialized, but in protected mode we still need to
handle them somehow.
 2022-11-20 16:02:50 +03:00
Anna Shaleva
7eb87afab8 cli: unify parameters parsing 
Share parameters parsing code between 'contract invokefunction' and
'vm run' commands. It allows VM CLI to parse more complicated parameter
types including arrays and file-backed bytestrings.
 2022-10-13 08:20:27 +03:00
Roman Khimov
4f3ffe7290 golangci: enable errorlint and fix everything it found 2022-09-02 18:36:23 +03:00
Anna Shaleva
916f2293b8 *: apply go 1.19 formatter heuristics 
And make manual corrections where needed. See the "Common mistakes
and pitfalls" section of https://tip.golang.org/doc/comment.
 2022-08-09 15:37:52 +03:00
Roman Khimov
edb6ca8926
Merge pull request #2531 from nspcc-dev/perf 
Minor performance improvements
 2022-06-03 10:40:56 +03:00
Roman Khimov
c3d989ebda stackitem: reusable serialization context 
We serialize items a lot and this allows to avoid a number of allocations.
 2022-06-02 15:38:39 +03:00
Roman Khimov
e1607e23c2
Merge pull request #2525 from nspcc-dev/immutable-items 
vm: implement immutable stackitems
 2022-05-31 10:36:56 +03:00
Anna Shaleva
42a051e55a core: DeepCopy notifiction event args inside System.Runtime.Notify 2022-05-31 08:07:53 +03:00
Anna Shaleva
7296f0c913 vm: support immutable compound types 2022-05-31 08:07:50 +03:00
Anna Shaleva
a3285eae04 vm: stringify InteropInterface stackitem type as InteropInterface 2022-05-25 13:20:21 +03:00
Roman Khimov
c6f8c33e66
Merge pull request #2478 from nspcc-dev/mainnet-fixes 
Mainnet fixes
 2022-05-12 10:04:53 +03:00
Roman Khimov
621db8c832 stackitem: allow to unJSONize big numbers (>int64), fix #2477 
100000000000000000000 overflows int64 and NeoGo returns some garbage to
contracts instead of a proper number.
 2022-05-11 21:03:10 +03:00
Anna Shaleva
8af043520d vm: adjust MaxByteArrayComparableSize value 
https://github.com/neo-project/neo-vm/pull/454#discussion_r857533800.
 2022-05-07 12:56:09 +03:00
Anna Shaleva
23b78b0be2 vm: limit ByteArray comparable length 
Close #2460.
 2022-05-07 12:56:04 +03:00
Elizaveta Chichindaeva
28908aa3cf [#2442] English Check 
Signed-off-by: Elizaveta Chichindaeva <elizaveta@nspcc.ru>
 2022-05-04 19:48:27 +03:00
Evgeniy Stratonikov
a8d2df874f stackitem: limit JSON size in ToJSONWithTypes 
Also do not limit depth. It was introduced in e34fa2e915 as a simple
solution to OOM problem. In this commit we do exactly the refactoring
described there. Maximum size is the same as stack item size and
can be changed if needed withouth significat refactoring.
`1 MiB` seems sufficient, though.

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2022-03-09 10:29:23 +03:00
Evgeniy Stratonikov
c72b3f2176 vm/emit: check big integer size 
Fix a bug where big integer could be emitted as 0 without reporting an
error. Also, add tests.

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2022-02-11 12:48:55 +03:00
Roman Khimov
decff2bfb9 stackitem: simplify extracting value from map 
Going through interfaces doesn't make it faster.
 2021-12-01 21:36:35 +03:00
Roman Khimov
af8a4da6d9 stackitem: use type switch more effectively 
Reduce the number of allocations, save some time.

name               old time/op    new time/op    delta
EncodeBinary-8       51.2µs ± 8%    44.6µs ± 7%  -12.79%  (p=0.008 n=5+5)
SerializeSimple-8     523ns ± 5%     449ns ± 4%  -14.27%  (p=0.008 n=5+5)

name               old alloc/op   new alloc/op   delta
EncodeBinary-8        329kB ± 0%     329kB ± 0%   -0.12%  (p=0.008 n=5+5)
SerializeSimple-8      432B ± 0%      408B ± 0%   -5.56%  (p=0.008 n=5+5)

name               old allocs/op  new allocs/op  delta
EncodeBinary-8         36.0 ± 0%      20.0 ± 0%  -44.44%  (p=0.008 n=5+5)
SerializeSimple-8      7.00 ± 0%      6.00 ± 0%  -14.29%  (p=0.008 n=5+5)
 2021-12-01 21:36:35 +03:00
Roman Khimov
3eed9d06f8 stackitem: add some hint to 'seen' maps 
It's empirical, we usually have one container, but four is likely to fit most
of regular cases.
 2021-12-01 21:36:25 +03:00
Roman Khimov
d3198c3082 stackitem: avoid going through Value() in serialization 
Doesn't change much, but still simpler.

name               old time/op    new time/op    delta
SerializeSimple-8     452ns ±10%     435ns ± 4%   ~     (p=0.356 n=10+9)

name               old alloc/op   new alloc/op   delta
SerializeSimple-8      432B ± 0%      432B ± 0%   ~     (all equal)

name               old allocs/op  new allocs/op  delta
SerializeSimple-8      7.00 ± 0%      7.00 ± 0%   ~     (all equal)
 2021-08-23 18:29:07 +03:00
Evgeniy Stratonikov
6879f76a13 stackitem: make Buffer an alias to []byte 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-08-13 14:41:26 +03:00
Evgeniy Stratonikov
1dfef4ba26 stackitem: make ByteArray an alias to []byte 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-08-13 14:41:26 +03:00
Evgeniy Stratonikov
4f98ec2f53 vm: embed reference counter in compound items 
```
name              old time/op  new time/op  delta
RefCounter_Add-8  44.8ns ± 4%  11.7ns ± 3%  -73.94%  (p=0.000 n=10+10)
```

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-08-13 14:41:26 +03:00
Evgeniy Stratonikov
a5516e8c96 stackitem: make BigInteger alias to big.Int 
Remove one indirection step.
``
name       old time/op    new time/op    delta
MakeInt-8    79.7ns ± 8%    56.2ns ± 8%  -29.44%  (p=0.000 n=10+10)

name       old alloc/op   new alloc/op   delta
MakeInt-8     48.0B ± 0%     40.0B ± 0%  -16.67%  (p=0.000 n=10+10)

name       old allocs/op  new allocs/op  delta
MakeInt-8      3.00 ± 0%      2.00 ± 0%  -33.33%  (p=0.000 n=10+10)
```

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-08-12 17:53:36 +03:00
Evgeniy Stratonikov
cff8b1c24e stackitem: use Bool item directly 
It is always copied.

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-08-12 17:53:36 +03:00
Evgeniy Stratonikov
f02d8b4ec4 stackitem: serialize integers to the pre-allocated slice 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-08-06 11:59:24 +03:00
Evgeniy Stratonikov
bdb9748c1b native/std: restrict amount of items in JSON deserialization 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-08-02 18:57:47 +03:00