Evgenii Stratonikov
807338f97e
core: do not store NEP5 transfer log in memory
...
Traversing transfer log instead of accumulating and returning it
is faster and takes less memory.
2020-08-07 18:21:06 +03:00
Roman Khimov
c3c88a57cd
Merge pull request #1281 from nspcc-dev/drop-go-1.12-and-fix-some-things
...
Drop go 1.12 and fix some things
2020-08-07 13:34:54 +03:00
Roman Khimov
791c983304
core: drop GetScriptHashesForVerifying
...
It no longer depends on blockchain state and there can't ever be an error, in
fact we can always iterate over signers, so copying these hashes doesn't make
much sense at all as well as sorting arrays in verifyTxWitnesses (witnesses
order must match signers order).
2020-08-07 12:21:52 +03:00
Roman Khimov
0e2784cd2c
always wrap errors when creating new ones with fmt.Errorf()
...
It doesn't really change anything in most of the cases, but it's a useful
habit anyway.
Fix #350 .
2020-08-07 12:21:52 +03:00
Roman Khimov
205f52c563
core: use error wrapping to provide more details
2020-08-07 12:21:52 +03:00
Roman Khimov
5ef08f60ae
remove github.com/pkg/errors from dependencies
...
It's not needed any more with Go 1.13 as we have wrapping/unwrapping in base
packages. All errors.Wrap calls are replaced with fmt.Errorf, some strings are
improved along the way.
2020-08-07 12:21:52 +03:00
Evgenii Stratonikov
27169d140f
core: implement (*Blockchain).GetStandByCommitee()
2020-08-06 20:39:13 +03:00
Anna Shaleva
6c8accf18c
core, network: request blocks instead of headers
...
Closes #1192
1. We now have CMDGetBlockByIndex, so there's no need to request headers
first when we can just ask for blocks.
2. We don't ask for headers (i.e. we don't send CMDGetHeaders),
consequently, we shouldn't react on CMDHeaders.
3. But we still keep on reacting on CMDGetHeaders command as
there could be a node which needs headers.
2020-08-04 17:52:34 +03:00
Anna Shaleva
f6f3863e0e
network: allow to GetHeaders by index
...
Use GetBlockByIndex payload for GetHeaders command instead of GetBlocks
payload.
2020-08-04 17:52:34 +03:00
Anna Shaleva
7b1c305000
network: fix handleGetBlockByIndexCmd method
...
It returned an error in case if block wasn't found (it might be when our
chain is lower). Fixed. It also should return all requested blocks, not
the first one.
2020-08-04 17:52:34 +03:00
Anna Shaleva
0b0591fc34
network: allow to use -1 to specify GetBlockByIndex.Count
2020-08-04 17:52:34 +03:00
Anna Shaleva
0b856033b0
network: use MaxHeadersAllowed to restrict GetBlockByIndex
2020-08-04 17:52:34 +03:00
Anna Shaleva
737ba700e9
network: rename GetBlockData command
...
GetBlockData -> GetBlockByIndex
2020-08-04 17:52:34 +03:00
Roman Khimov
62f5aa8eb4
Merge pull request #1254 from nspcc-dev/native/policy/maxblocksystemfee
...
core, consensus: add maxBlockSystemFee to native Policy
2020-08-04 13:13:06 +03:00
Anna Shaleva
db65ed04d9
consensus: apply policy during verifyBlock
...
To follow C# implementation we should also check proposed block on
policy matching.
2020-08-04 10:59:09 +03:00
Roman Khimov
1f46f73d12
network: handle length mismatch in decompression routine
...
It's a protocol level error when uncompressed payload size doesn't match the
one specified in the header.
2020-08-03 22:38:55 +03:00
fyrchik
babd84ec10
Merge pull request #1243 from nspcc-dev/protocol/uncompressed_payload_size
...
network: add uncompressed payload size
2020-07-31 10:03:55 +03:00
fyrchik
e4fc655115
Merge pull request #1239 from nspcc-dev/store_nep5_with_id
...
core: store contract IDs instead of hashes for NEP5Balances and Transfers
2020-07-30 12:56:19 +03:00
Anna Shaleva
2574b65b74
network: add uncompressed payload size
...
Closes #1212
2020-07-30 12:47:42 +03:00
Evgenii Stratonikov
0e29382035
core: update MPT during block processing
...
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2020-07-30 12:42:15 +03:00
Anna Shaleva
dbd460d883
core: retrieve contract hash by ID
...
We'll need this ability further to retrieve contracts hashes for Nep5Balances.
2020-07-29 15:14:24 +03:00
Roman Khimov
432cef59f4
network: copy peers for Shutdown iteration
...
We can't lock them (or there will be a deadlock), but we need to fix this:
fatal error: concurrent map iteration and map write
goroutine 1 [running]:
runtime.throw(0xdec086, 0x26)
/usr/lib64/go/1.12/src/runtime/panic.go:617 +0x72 fp=0xc02fec2bf8 sp=0xc02fec2bc8 pc=0x42d932
runtime.mapiternext(0xc02fec2d40)
/usr/lib64/go/1.12/src/runtime/map.go:860 +0x597 fp=0xc02fec2c80 sp=0xc02fec2bf8 pc=0x40efe7
github.com/nspcc-dev/neo-go/pkg/network.(*Server).Shutdown(0xc0000fc160)
/home/rik/dev/neo-go2/pkg/network/server.go:194 +0x238 fp=0xc02fec2db0 sp=0xc02fec2c80 pc=0xa89da8
github.com/nspcc-dev/neo-go/cli/server.startServer(0xc0000fcc60, 0x0, 0x0)
/home/rik/dev/neo-go2/cli/server/server.go:399 +0x7a9 fp=0xc02fec3820 sp=0xc02fec2db0 pc=0xae2079
...
2020-07-17 19:03:12 +03:00
Anna Shaleva
db5b42b601
network: update CMDUncknown
...
Closes #1135
2020-07-16 06:58:55 +03:00
Roman Khimov
7eef895061
consensus: use GetNextBlockValidators where appropriate
...
GetValidators without parameter is called upon DBFT initialization and it
should receive validators for the next block (that will create it),
parameterized GetValidators is used for NextConsensus calculation where we
need a list for the current state of the chain.
2020-07-11 19:54:50 +03:00
Anna Shaleva
abe3c94b95
core: use big.Int to store NEP5 balances
...
closes #1133
2020-07-09 13:26:39 +03:00
Roman Khimov
08c516014f
Merge pull request #1132 from nspcc-dev/neo3/rpc/fixed8_marshalling
...
*: switch from Fixed8 to int64
2020-06-29 21:44:40 +03:00
Anna Shaleva
0aaaf7f787
*: switch from fixed8 to int64 in (Blockchain).CalculateClaimable
2020-06-29 21:40:54 +03:00
Anna Shaleva
73b630db9b
*: switch from fixed8 to int64
...
Follow C# implementation, we have to marshall JSON Fixed8 fields without
taking into account decimals.
2020-06-29 21:39:27 +03:00
Roman Khimov
372dd71708
Merge pull request #1108 from nspcc-dev/neo3/compiler/nef
...
compiler: support *.nef and *.manifest.json generation
2020-06-29 20:55:47 +03:00
Anna Shaleva
6b8957243a
*: move wallet config from wallet
to config
package
...
In order to avoid dependency cycle at the next commits:
imports github.com/nspcc-dev/neo-go/pkg/config
imports github.com/nspcc-dev/neo-go/pkg/wallet
imports github.com/nspcc-dev/neo-go/pkg/vm
imports github.com/nspcc-dev/neo-go/pkg/smartcontract/nef
imports github.com/nspcc-dev/neo-go/pkg/config
2020-06-29 09:15:29 +03:00
Evgenii Stratonikov
857ced8230
consensus: add network magic to hash data
...
Consensus payload's hash now depends on the network node is operating
in.
2020-06-26 18:41:04 +03:00
Roman Khimov
21cb7d5701
Merge pull request #1078 from nspcc-dev/feature/mempool
...
network: implement CMDMempool command
2020-06-24 10:49:42 +03:00
Evgenii Stratonikov
57bb2f73de
network: implement CMDMempool command
...
CMDMempool returns hashes of transactions in mempool in chunks.
2020-06-24 10:46:26 +03:00
Roman Khimov
e5f05790d5
core: cache standby validators in the Blockchain
...
They never change, so it makes no sense parsing the keys over and over
again. It also simplifies the interface a little.
2020-06-24 10:22:17 +03:00
Anna Shaleva
08cc04c3d5
core: add native policy contract
...
part of #904
2020-06-24 07:35:07 +03:00
Roman Khimov
892812d539
message: fix Verack processsing
...
Recent 9f42108ef
completely broke handshaking.
2020-06-20 00:28:51 +03:00
Roman Khimov
36a65e3847
Merge pull request #1077 from nspcc-dev/neo3/smartcontract/id
...
core: store smartcontract items by id
2020-06-20 00:12:07 +03:00
Anna Shaleva
f1cdcbc99c
core: store smartcontract items by id
...
closes #1037
2020-06-19 20:48:45 +03:00
Evgenii Stratonikov
505029152f
payload: always dereference NullPayload
...
There is no need in extra indirection level.
2020-06-19 15:02:21 +03:00
Evgenii Stratonikov
9f42108ef2
network: allow NullPayload only for specific commands
...
CMDFilterClear, CMDGetAddr, CMDMempool all have empty payloads.
2020-06-19 15:01:30 +03:00
Roman Khimov
93b0011988
Merge pull request #1069 from nspcc-dev/addr-locking-and-other-fixes
...
Addr, locking and other fixes
2020-06-18 23:29:19 +03:00
Evgenii Stratonikov
5354352d63
core: remove transaction priority
...
There is no such thing as high/low priority transactions, as there are
no free transactions anymore and they are ordered by fees contained
in transaction itself.
Closes #1063 .
2020-06-18 22:44:10 +03:00
Roman Khimov
bbe174ee4a
network: fix inverted logic of address addition to the pool
...
Fix #1066 .
2020-06-18 21:34:45 +03:00
Roman Khimov
b483c38593
block/transaction: add network magic into the hash
...
We make it explicit in the appropriate Block/Transaction structures, not via a
singleton as C# node does. I think this approach has a bit more potential and
allows better packages reuse for different purposes.
2020-06-18 12:39:50 +03:00
Roman Khimov
dde0763840
network: fix compression handling functions
...
Turns out, Neo uses block compression and not a streaming lz4 format. And it
doesn't contain uncompressed payload size which makes guessing it somewhat
suboptimal.
2020-06-18 12:12:43 +03:00
Roman Khimov
8388e509df
network: don't allocate memory for messages larger than PayloadMaxSize
2020-06-18 12:12:31 +03:00
Roman Khimov
39fd799992
network: fix Compress flag, it's the first bit (index 0)
2020-06-18 12:12:17 +03:00
Roman Khimov
26f11a52d9
config: move NetMode into its own micropackage
...
It's going to be used a bit more and pulling whole config just for one type is
a bit wrong.
2020-06-18 12:09:57 +03:00
Anna Shaleva
d5355acfa9
rpc: update RPC server invoke* calls
...
part of #1036
2020-06-11 19:34:13 +03:00
Anna Shaleva
3418e4f7f4
rpc: update getversion
RPC-call
...
closes #1035
2020-06-10 10:47:11 +03:00
Roman Khimov
63f4f34659
mempool: drop TxWithFee type
...
All the fees are in transaction, this makes no sense.
2020-06-05 19:21:40 +03:00
Roman Khimov
a986e2a064
*: drop support for old on-chain assets
...
You no longer can transfer them, so creating/renewing/storing doesn't make
much sense.
2020-06-05 19:21:37 +03:00
Roman Khimov
709146f295
transaction: drop Inputs and Outputs, forget UTXO
2020-06-05 19:20:16 +03:00
Roman Khimov
3d18f09def
core: fix CalculateClaimable for NEP5 NEO
...
It's not stored as Fixed8, so calculations need to be adjusted for that.
2020-06-05 19:20:16 +03:00
Roman Khimov
39dfebccc4
core: no longer treat sysfee as claimable
...
As it's not on Neo 3, it just gets burned and that's it. Only network fee is
being redistributed to CNs.
2020-06-05 19:20:16 +03:00
Roman Khimov
50ed4c5967
core: don't return an error from CalculateClaimable
...
As it never returns one.
2020-06-05 19:20:16 +03:00
Roman Khimov
657bb7575e
rpc: change getunclaimed to getunclaimedgas
...
getunclaimed doesn't exist on Neo 3 and getunclaimedgas works for NEP5 GAS.
2020-06-05 19:20:16 +03:00
Roman Khimov
eec462b00c
network: fix Inv types for Neo 3
...
They actually use the same types as for messages. Fixes
2020-05-29T00:06:17.593+0300 WARN peer disconnected {"addr": "168.62.167.190:20333", "reason": "handling CMDInv message: invalid inventory type", "peerCount": 3}
2020-05-29 15:02:20 +03:00
Roman Khimov
56b24bf83e
capability: prevent panic on wrong capabilities receival
...
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0xad7b95]
goroutine 134 [running]:
github.com/nspcc-dev/neo-go/pkg/network/capability.(*Capability).DecodeBinary(0xc00024a300, 0xc00015c900)
/home/rik/dev/neo-go/pkg/network/capability/capability.go:69 +0x85
github.com/nspcc-dev/neo-go/pkg/io.(*BinReader).ReadArray(0xc00015c900, 0xd54880, 0xc00018ecd8, 0xc00071fbe0, 0x1, 0x1)
/home/rik/dev/neo-go/pkg/io/binaryReader.go:141 +0x22f
github.com/nspcc-dev/neo-go/pkg/network/capability.(*Capabilities).DecodeBinary(0xc00018ecd8, 0xc00015c900)
/home/rik/dev/neo-go/pkg/network/capability/capability.go:17 +0x6d
github.com/nspcc-dev/neo-go/pkg/network/payload.(*AddressAndTime).DecodeBinary(0xc00018ecc0, 0xc00015c900)
/home/rik/dev/neo-go/pkg/network/payload/address.go:34 +0x59
github.com/nspcc-dev/neo-go/pkg/io.(*BinReader).ReadArray(0xc00015c900, 0xcb9e00, 0xc00024a2a0, 0x0, 0x0, 0x0)
/home/rik/dev/neo-go/pkg/io/binaryReader.go:141 +0x22f
github.com/nspcc-dev/neo-go/pkg/network/payload.(*AddressList).DecodeBinary(0xc00024a2a0, 0xc00015c900)
/home/rik/dev/neo-go/pkg/network/payload/address.go:78 +0x54
github.com/nspcc-dev/neo-go/pkg/network.(*Message).decodePayload(0xc000277890, 0xc000292020, 0xc0003da000)
/home/rik/dev/neo-go/pkg/network/message.go:158 +0x31a
github.com/nspcc-dev/neo-go/pkg/network.(*Message).Decode(0xc000277890, 0xc00071ff48, 0xc00036e090, 0xc000276e40)
/home/rik/dev/neo-go/pkg/network/message.go:114 +0x19b
github.com/nspcc-dev/neo-go/pkg/network.(*TCPPeer).handleConn(0xc00036e090)
/home/rik/dev/neo-go/pkg/network/tcp_peer.go:154 +0x244
created by github.com/nspcc-dev/neo-go/pkg/network.(*TCPTransport).Dial
/home/rik/dev/neo-go/pkg/network/tcp_transport.go:40 +0x1ad
2020-05-29 00:11:54 +03:00
Anna Shaleva
1dffe0bea9
network: remove outdated fields
...
After #980 there were outdated fields present in message test.
2020-05-27 19:32:50 +03:00
Roman Khimov
a446821753
Merge pull request #980 from nspcc-dev/neo3/protocol/version_payload_optimisation
...
protocol: add node capabilities
2020-05-27 19:13:00 +03:00
Anna Shaleva
7547a3efe1
network: minor code refactoring
...
We need to handle IPv6 addresses correctly and net.JoinHostPort takes it
into account.
2020-05-27 19:04:09 +03:00
Anna Shaleva
8c5c248e79
protocol: add capabilities to address payload
...
Part of #871
2020-05-27 19:02:25 +03:00
Anna Shaleva
c590cc02f4
protocol: add capabilities to version payload
...
closes #871
2020-05-27 19:01:14 +03:00
Roman Khimov
5733573d2e
Merge pull request #987 from nspcc-dev/neo3/protocol/compression
...
protocol: add payload compression
2020-05-26 23:31:17 +03:00
Anna Shaleva
0cbd7823ab
protocol: add payload compression
...
closes #872
2020-05-26 22:19:10 +03:00
Roman Khimov
b7d2b659b4
network: get blocks directly from the chain for rebroadcasting
...
Simplify network<->consensus relations, also broadcast blocks received by
other means like RPC.
2020-05-25 00:27:39 +03:00
Roman Khimov
462022bbdd
consensus: remove OnNewBlock(), use Blockchain subscription
...
Get new blocks directly from the Blockchain. It may lead to some duplications
(as we'll also receive our own blocks), but at the same time it's more
correct, because technically we can also get blocks via other means besides
network server like RPC (submitblock call). And it simplifies network server
at the same time.
2020-05-25 00:27:39 +03:00
Roman Khimov
3ca71d5e8d
core: add Blockchain event subscription mechanism
...
A deep internal part of #895 . Blockchainer interface is also extended for
various uses of these methods.
2020-05-25 00:27:39 +03:00
Roman Khimov
bd98940a54
Merge pull request #982 from nspcc-dev/neo3/protocol/getblockdata
...
protocol: implement getblockdata p2p command
2020-05-22 19:28:42 +03:00
Anna Shaleva
8142caaf8b
protocol: implement getblockdata p2p command
...
closes #891
2020-05-22 19:16:49 +03:00
Anna Shaleva
2f6a3e9af5
protocol: refactor getblocks payload
...
closes #890
2020-05-22 17:33:59 +03:00
Anna Shaleva
64a2fb63e1
protocol: move magic exchange to version payload
...
closes #889
2020-05-21 14:23:41 +03:00
Anna Shaleva
3bcc56bdcf
protocol: switch to binary MessageCommand
...
closes #888
2020-05-21 13:57:49 +03:00
Anna Shaleva
1afd630169
core: add senders' fees monitor to mempool
...
In order to simplify maintainance of overall current senders` fees
in the mempool we are to keep them in a separate map.
2020-05-20 23:34:25 +03:00
Anna Shaleva
7acf5b2841
core: add SystemFee and NetworkFee to transaction
...
closes #831
2020-05-20 23:26:48 +03:00
Anna Shaleva
29d321b5e1
*: drop miner transaction
...
1. Completely remove miner transaction
2. Change validation rule for block: block without transactions is
valid.
2020-04-27 17:57:37 +03:00
Anna Shaleva
aa554f0a9a
core: update block timestamp format
...
Changed block.Timestamp from uint32 to uint64
2020-04-27 17:56:44 +03:00
Roman Khimov
b83e84ca08
core: switch to the new voting system (via native NEO contract)
...
It has all the methods required now, so you can register, vote and get
voting results. Fixes #865 .
2020-04-27 16:06:50 +03:00
Evgenii Stratonikov
c508a36827
core,network: shutdown services in tests properly
2020-04-22 17:53:59 +03:00
Roman Khimov
9a67bfac0b
network: drop checksums from messages
...
Follow neo-project/neo#710 changes.
2020-04-19 23:40:31 +03:00
Evgenii Stratonikov
8a2130f5b6
core: extend Blockchainer with GetStandByValidators()
...
A list of standby validators can be needed in native contracts.
2020-04-16 15:54:58 +03:00
Evgenii Stratonikov
a7c19d445b
core: move Blockchainer interface to a separate package
2020-04-11 10:56:36 +03:00
Roman Khimov
5f09381cf4
core: wrap cached dao properly, don't miss cached data
...
Fixes #817 where invoked contract missed updated account information because
it got it one layer below cachedDao used to process the block.
2020-04-03 10:15:11 +03:00
Roman Khimov
9b5dab57e8
Merge pull request #810 from nspcc-dev/refactor/config
...
config: move config.go out of config
2020-04-01 10:29:57 +03:00
Anna Shaleva
5a984fdf88
config: move config.go out of config/
...
closes #423
2020-03-31 17:55:59 +03:00
Evgenii Stratonikov
9abda40171
testserdes: implement helpers for encode/decode routines
...
Frequently one needs to check if struct serializes/deserializes
properly. This commit implements helpers for such cases including:
1. JSON
2. io.Serializable interface
2020-03-27 10:27:46 +03:00
Evgenii Stratonikov
df2598c8dc
core: store NEP5 balances separately
...
There is no need to take and unmarshal an account structure only
to get it's NEP5 balances.
2020-03-12 12:58:28 +03:00
Roman Khimov
5f1868af28
Merge pull request #743 from nspcc-dev/optimize-some-db-accesses
...
Optimize some db accesses
2020-03-11 17:33:36 +03:00
Roman Khimov
377fb382aa
core: move (un)SpentCoin structs into the state package
...
As they're all about the state.
2020-03-11 12:22:52 +03:00
Evgenii Stratonikov
b7dee156e2
network: fix a deadlock in DefaultDiscovery
...
Why a deadlock can occur:
1. (*DefaultDiscovery).run() has a for loop over requestCh channel.
2. (*DefaultDiscovery).RequestRemote() send to this channel while
holding a mutex.
3. (*DefaultDiscovery).RegisterBadAddr() tries to take mutex for write.
4. Second select-case can't take mutex for read because of (3).
2020-03-10 15:40:23 +03:00
Anna Shaleva
456a2d55fd
rpc: implement getvalidators
...
closes #714
2020-03-07 18:05:40 +03:00
Roman Khimov
fbdc60b731
Merge pull request #723 from nspcc-dev/feature/nep5
...
core,rpc: implement NEP5-related logic
2020-03-05 18:33:58 +03:00
Evgenii Stratonikov
95a8fa234f
rpc: implement getnep5transfers RPC
2020-03-05 18:22:40 +03:00
Roman Khimov
31948ee4a7
network: add a nil check in (*TCPTransport).Close, prevent panic
...
You have to try to trigger that, but in the event of server shutdown before it
actually started listening Close will easily panic like this:
2020-03-05T11:48:08.660+0300 INFO node started {"blockHeight": 6458, "headerHeight": 15605}
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0x9d5f0a]
goroutine 1 [running]:
github.com/nspcc-dev/neo-go/pkg/network.(*TCPTransport).Close(0xc000fd7050)
/home/rik/dev/neo-go/pkg/network/tcp_transport.go:78 +0x2a
github.com/nspcc-dev/neo-go/pkg/network.(*Server).Shutdown(0xc000182280)
/home/rik/dev/neo-go/pkg/network/server.go:190 +0x189
github.com/nspcc-dev/neo-go/cli/server.startServer(0xc000200160, 0x0, 0x0)
/home/rik/dev/neo-go/cli/server/server.go:367 +0x79e
github.com/urfave/cli.HandleAction(0xb84860, 0xccf240, 0xc000200160, 0xc0001c4500, 0x0)
/home/rik/dev/neo-go/vendor/github.com/urfave/cli/app.go:490 +0xc8
github.com/urfave/cli.Command.Run(0xc9a160, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0xca407f, 0x10, 0x0, ...)
/home/rik/dev/neo-go/vendor/github.com/urfave/cli/command.go:210 +0x996
github.com/urfave/cli.(*App).Run(0xc0001d64e0, 0xc0000ca000, 0x3, 0x3, 0x0, 0x0)
/home/rik/dev/neo-go/vendor/github.com/urfave/cli/app.go:255 +0x6af
main.main()
/home/rik/dev/neo-go/cli/main.go:25 +0x505
2020-03-05 11:53:26 +03:00
Roman Khimov
e41d434a49
*: move all packages from CityOfZion to nspcc-dev
2020-03-03 17:21:42 +03:00
Evgenii Stratonikov
7095ec6c51
core: implement (*Blockchain).CalculateClaimable
...
Calculating amount of GAS that can be claimed is required
for getclaimable RPC.
2020-03-02 18:00:00 +03:00
Roman Khimov
252a9f2f31
Merge pull request #690 from nspcc-dev/feature/getapplicationlog
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rpc: implement getapplicationlog RPC
2020-03-02 17:41:32 +03:00
Anna Shaleva
ff4384d7ff
rpc: implement getapplicationlog RPC
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Closes #500
2020-03-02 17:25:27 +03:00
Evgenii Stratonikov
a3dacd3b74
tests: replace t.Fatal with require where possible
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This makes tests less verbose and unifies the style
they are written in.
2020-03-02 17:22:27 +03:00