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276 commits

Author SHA1 Message Date
Roman Khimov
10766fe813 vm: add tests for hashing instructions 
These were cross-checked with the C# implementation.
 2019-12-17 20:31:16 +03:00
Roman Khimov
21efcb012b vm: fix non-dupped items in PICKITEM 
TestPICKITEMDupMap and TestPICKITEMDupArray were failing.
 2019-12-17 20:26:30 +03:00
Roman Khimov
a6d60e387a vm: fix OVER and PICK to duplicate stack items 
TestPICKDup and TestOVERDup failed without this.
 2019-12-17 20:26:30 +03:00
Roman Khimov
60dfa05b19 vm: duplicate an item in Dup 
TestDupByteArray and TestDupInt were failing before this patch.
 2019-12-17 20:26:30 +03:00
Roman Khimov
c596a6b273 vm: fix INVERT behaviour for converted values 
Tests added were failing before this change.
 2019-12-17 20:26:30 +03:00
Roman Khimov
587cfc7c66 vm: optimize ROLL/ROT, refactor common code 
Add `Roll` method to Stack that doesn't pop and push values and use it for
ROLL and ROT.

1.4M->1.5M 100K block import test before:
real    3m44,292s
user    5m43,494s
sys     0m34,741s

After:
real    3m40,449s
user    5m42,701s
sys     0m35,500s
 2019-12-16 19:53:21 +03:00
Roman Khimov
2627628387 vm: optimize SWAP instruction, refactor common code 
Add `Swap` method to the Stack and use it for both SWAP and XSWAP. Avoid
element popping and pushing (and associated accounting costs).

1.4M->1.5M 100K block import test before:
real    3m51,885s
user    5m54,744s
sys     0m38,444s

After:
real    3m44,292s
user    5m43,494s
sys     0m34,741s
 2019-12-16 19:02:40 +03:00
Roman Khimov
c9257c3de4 vm: optimize Next() in Context 
Creating a new BinReader for every instruction is a bit too much and it adds
about 1% overhead on block import (and actually is quite visible in the VM
profiling statistics). So use a bit more ugly but efficient method.
 2019-12-13 19:57:17 +03:00
Roman Khimov
0abd55c2c2 vm: add cached ScriptHash() to Context 
Avoid recalculating it over and over again in interop.
 2019-12-13 17:05:03 +03:00
Roman Khimov
0afaff2f79 vm: microoptimize RegisterInteropFuncs() 
Avoid useless copying.
 2019-12-13 17:02:28 +03:00
Roman Khimov
8b3080b972 io: rename Read/WriteBytes to Read/WriteB 
go vet is not happy about them:
  pkg/io/binaryReader.go:92:21: method ReadByte() byte should have signature ReadByte() (byte, error)
  pkg/io/binaryWriter.go:75:21: method WriteByte(u8 byte) should have signature WriteByte(byte) error
 2019-12-12 20:19:50 +03:00
Roman Khimov
54d888ba70 io: add type-specific read/write methods 
This seriously improves the serialization/deserialization performance for
several reasons:
 * no time spent in `binary` reflection
 * no memory allocations being made on every read/write
 * uses fast ReadBytes everywhere it's appropriate

It also makes Fixed8 Serializable just for convenience.
 2019-12-12 20:19:50 +03:00
Roman Khimov
d0f9a28196 vm/core: improve block import speed with PublicKey caching 
This change (closely related to the neo-project/neo#1321 proposal) speeds up
1.4M mainnet blocks import by 30%. Basically, we're eliminating key decoding
for block's multisignature that has the same keys most of the time.

Things I don't like about this patch:
 * yet another parameter for verifyHashAgainstScript()
 * vm keys are not copied in/out

But it's rather simple and solves the problem for this particular case, so I
think it's worth it.
 2019-12-10 19:13:29 +03:00
Evgenii Stratonikov
838050f8b5 io: rename ReadBytes() to ReadVarBytes() 2019-12-09 15:00:15 +03:00
Roman Khimov
e4d821f32d
Merge pull request #546 from nspcc-dev/write-optimizations 
Write optimizations
 2019-12-06 19:40:38 +03:00
Roman Khimov
844491d365 *: use more efficient WriteBytes where appropriate 
Before this patch on block import we could easily be spending more than 6
seconds out of 30 in Uint256 encoding for UnspentBalance, now it's completely
off the radar.
 2019-12-06 18:22:21 +03:00
Evgenii Stratonikov
7179e4ba9f util: add LE suffix to Uint256 methods 2019-12-06 12:16:55 +03:00
Evgenii Stratonikov
57efad912c util: add LE suffix to Uint160 methods 2019-12-06 12:16:55 +03:00
Roman Khimov
becd4f2333 vm: force neo-vm tests presence 
We succeeded this test without running anything real which is certainly not
good and I think we should always run this tests.
 2019-12-04 20:30:27 +03:00
Roman Khimov
852e6a335b compiler: move it up from vm 
It really deserves it, I think. Especially given that it doesn't have any
direct usage of `vm` package now.
 2019-12-03 18:23:46 +03:00
Roman Khimov
8d4dd2d2e1 vm: move opcodes into their own package 
This allows easier reuse of opcodes and in some cases allows to eliminate
dependencies on the whole vm package, like in compiler that only needs opcodes
and doesn't care about VM for any other purpose.

And yes, they're opcodes because an instruction is a whole thing with
operands, that's what context.Next() returns.
 2019-12-03 18:22:14 +03:00
Vsevolod Brekelov
b08387efdb vm: use BinWriter instead of Buffered version 
In the future we could reuse emit interface without buf better
 2019-12-03 13:50:23 +03:00
Vsevolod Brekelov
f5e2401984 vm: removed logging to fix #457 2019-12-03 13:49:49 +03:00
Vsevolod Brekelov
03ff2976ed io: refactoring for using WriteVarBytes instead of WriteLE 
goal is to be consistent with C# implementation.
For writing []byte WriteBytes used and for byte - WriteVarByte.
 2019-12-03 13:49:33 +03:00
Vsevolod Brekelov
d02673c112 vm: add bufBinWriter to emit functions in order to catch errors 2019-12-02 13:04:33 +03:00
Roman Khimov
05f3329ec0 vm: add IterBack to the Stack to iterate bottom-to-top 
And use it to build user-facing stack representation because that's the order
that C# VM uses.
 2019-11-27 13:00:11 +03:00
Roman Khimov
f3ed91a1f7 vm: properly convert arrays to stackItems 
They should be arrays of stackItems, not arrays of values.
 2019-11-27 13:00:11 +03:00
Roman Khimov
64e20508e0 vm: use hex for ByteArray JSON marshallization 
It's way more convenient for different purposes.
 2019-11-15 18:04:59 +03:00
Roman Khimov
5ce269c035 core: change notify implementation to save notifications 
Fixes #453 and makes it possible to refer to these notifications later.
 2019-11-15 18:04:59 +03:00
Evgenii Stratonikov
7080b78a6b vm: fix a bug in collection serialize 
When encountering already seen stack item we should fail
only if it is a collection. Duplicate Integers or ByteArrays are ok
because they can't lead to recursion.
 2019-11-15 12:48:00 +03:00
Evgenii Stratonikov
816d78b5ee vm: redefine SHL/SHR limits based on integer size 2019-11-07 12:50:11 +03:00
Evgenii Stratonikov
439cd72294 vm: restrict BigInteger item size 2019-11-07 12:34:27 +03:00
Evgenii Stratonikov
6c002297cd vm: implement json tests from neoVM 
Add neo-vm submodule @master2.x .
Closes #196.
 2019-11-06 16:22:56 +03:00
Evgenii Stratonikov
7d40d2f71e vm: make StepOut/StepOver match original VM behavior 2019-11-06 12:25:04 +03:00
Evgenii Stratonikov
9ebb793009 vm: revert SUBSTR offset behavior to NEO 2.x 2019-11-06 12:15:55 +03:00
Evgenii Stratonikov
4c688355bc vm: revert bool -> []byte conversion to NEO 2.x 2019-11-06 12:15:48 +03:00
Evgenii Stratonikov
067d9655bf vm: restrict total stack item count 2019-11-06 11:03:43 +03:00
Evgenii Stratonikov
ed758458d5 vm: implement serialization interops in core package 2019-11-05 17:10:52 +03:00
Evgenii Stratonikov
412582dc78 vm: add more serialization tests 2019-11-05 17:04:14 +03:00
Evgenii Stratonikov
59f9c2bddc vm: implement Array and Struct item serialization 2019-11-05 16:58:09 +03:00
Evgenii Stratonikov
e1d019e087 vm: implement Map item serialization 2019-11-05 16:57:48 +03:00
Evgenii Stratonikov
cd690803cf vm: implement BigInteger item serialization 2019-11-05 15:15:43 +03:00
Evgenii Stratonikov
25f77257ce vm: implement Boolean and ByteArray item serialization 2019-11-05 15:15:39 +03:00
Roman Khimov
2f6e678a19
Merge pull request #463 from nspcc-dev/smartcontract-fixes 
Smartcontract RPC fixes
 2019-10-29 20:54:46 +03:00
Roman Khimov
94776b8a1f vm: add MarshalJSON to the Stack 
To easily dump it in a known format.
 2019-10-29 18:26:59 +03:00
Roman Khimov
47f66dfbf3 vm: add State() method to get a state description 2019-10-29 18:26:04 +03:00
Evgenii Stratonikov
c7f0b7bd68 vm: restrict max invocation stack size 2019-10-29 15:09:17 +03:00
Roman Khimov
579aa31ddd compiler: drop useless options parameter to Compile() 
It's not used in any way there.
 2019-10-29 13:02:54 +03:00
Roman Khimov
e319c6c638 cli: move avm inspect from vm to contract command 
Make inspect work with avms by default and with go files if told so. In the
end this makes our CLI interface more consistent and usable. Drop useless
CompileAndInspect() compiler method along the way.
 2019-10-29 12:56:44 +03:00
Roman Khimov
ae7687422c vm: clear state in Load() 
Make VM usable after the first run.
 2019-10-29 12:53:09 +03:00
Roman Khimov
f0cffe0d3f vm: implement stack isolation opcodes, fix #192 
No tests yet.
 2019-10-25 18:25:12 +03:00
Roman Khimov
1250bf9579
Merge pull request #443 from nspcc-dev/spellcheck 
spellcheck and comments fix
 2019-10-22 18:01:40 +03:00
Vsevolod Brekelov
8ee421db14 fix spelling and godoc comments 2019-10-22 17:56:03 +03:00
Roman Khimov
a9a2a3c711 vm: fix tests failing, follow-up to #426 
Deal with input and transitional VM states properly.
 2019-10-22 15:20:44 +03:00
Roman Khimov
3cbb699eb7
Merge pull request #426 from nspcc-dev/logger_247 
Change fmt.Println to log, close #247.
 2019-10-22 14:41:30 +03:00
Roman Khimov
558a25cbd2
Merge pull request #438 from nspcc-dev/fix/437 
vm: copy slice in NEWARRAY/NEWSTRUCT

Fixes #437.
 2019-10-22 14:36:32 +03:00
Vsevolod Brekelov
e2bfff8666 vm: removed mute mode and pushed logging to upper lvl 
VM should be responsible for code execution and in case anyone interested in additional logging or errors they could handle them like we do it iin cli.
 2019-10-22 13:44:14 +03:00
Evgenii Stratonikov
b2609786e9 vm: copy slice in NEWARRAY/NEWSTRUCT 
When performing NEWARRAY on a Struct or NEWSTRUCT on a Array,
underlying slice needs to be copied, because when it's capacity
doesn't matches it's length, underlying storage will be used
for appends even if it is already pointed at by another slice.
 2019-10-22 13:34:35 +03:00
Vsevolod Brekelov
f2805541cb vm: fix style and comments 2019-10-21 14:22:17 +03:00
Vsevolod Brekelov
fe39c565b9 codestyle: redundant type conversion 2019-10-18 18:39:31 +03:00
Vsevolod Brekelov
1afdb895a1 codestyle: declare empty slice 
https://github.com/golang/go/wiki/CodeReviewComments#declaring-empty-slices
 2019-10-18 18:38:33 +03:00
Vsevolod Brekelov
3560ada669 codestyle: use camel case 2019-10-18 18:36:54 +03:00
Vsevolod Brekelov
59e3bd2fa9 codestyle: fix error string should not be capitalized 2019-10-18 18:34:58 +03:00
Vsevolod Brekelov
0daef50b9d cli: fix for error wrapping 2019-10-17 18:23:49 +03:00
Vsevolod Brekelov
5b81110d16 cli: print logo via shell 2019-10-17 18:23:49 +03:00
Evgenii Stratonikov
487570153b vm: restrict max item size in PUSHDATA4 2019-10-17 17:10:00 +03:00
Evgenii Stratonikov
cae431b844 vm: restrict max item size in CAT 2019-10-17 17:09:42 +03:00
Evgenii Stratonikov
6d7016c3b9 vm: restrict max size in SETITEM 2019-10-17 12:17:06 +03:00
Evgenii Stratonikov
6f1f9e56bb vm: restrict max size in PACK 2019-10-17 12:17:06 +03:00
Evgenii Stratonikov
2d56c66bde vm: restrict max size in APPEND 2019-10-17 12:17:01 +03:00
Evgenii Stratonikov
8abcaeee6f vm: restrict max size in NEWARRAY/NEWSTRUCT 2019-10-17 11:48:48 +03:00
Roman Khimov
4822c736bb
Merge pull request #418 from nspcc-dev/various-verification-fixes2 
Transaction verification fixes, interops and block verification. Fixes #12.
 2019-10-15 19:11:00 +03:00
Roman Khimov
d007cc00cc vm: add script check functions 
These are required for future interops.
 2019-10-15 12:56:25 +03:00
Roman Khimov
acb7ef7fbd vm: support uint8 and uint64 in makeStackItem() 
Convenience to avoid casts, uint64 is also a bit special in that it can't be
converted to int64 without data loss.
 2019-10-15 12:56:25 +03:00
Roman Khimov
782ca64d92 vm: accept uint16 in makeStackItem() 2019-10-15 12:56:25 +03:00
Vsevolod Brekelov
5109b2e3e7 vm: fix cli comment 2019-10-14 18:38:05 +03:00
Vsevolod Brekelov
591d5eafbe vm: add stepInto,stepOver,stepOut 
Original C# vm debugger behavior
 2019-10-14 18:37:11 +03:00
Roman Khimov
dca332f333 vm: use new Context.Next() to properly dump programs 
Fix #295, deduplicate code and add `inspect` parameter to the vm command to
dump AVMs (`contract inspect` works with Go code).
 2019-10-04 16:13:39 +03:00
Roman Khimov
53a3b18652 vm: completely separate instruction read and execution phases 
Make Context.Next() return both opcode and instruction parameter if any. This
simplifies some code and needed to deal with #295.
 2019-10-04 16:13:39 +03:00
Roman Khimov
1bf232ad50 vm: introduce TryBool() for Element and use it in VerifyWitnesses 
Script can return non-bool results that can still be converted to bool
according to the usual VM rules. Unfortunately Bool() panics if this
conversion fails which is OK for things done in vm.execute(), but certainly
not for VerifyWitnesses(), thus there is a need for TryBool() that will just
return an error in this case.
 2019-10-04 16:13:39 +03:00
Roman Khimov
8441b31b4b vm: accept uint32 in makeStackItem() 
Interop services routinely push such things (block index, blockchain height)
onto the stack.
 2019-10-04 16:13:39 +03:00
Roman Khimov
d62a367900 vm: add Value() method to Element 
It gives access to the internal value's Value() which is essential for interop
functions that need to get something from InteropItems. And it also simplifies
some already existing code along the way.
 2019-10-04 16:13:39 +03:00
Roman Khimov
0c963875af vm: check for fault flag first in Run() 
Switch cases are evaluated sequentially and the fault case is top-priority to
handle.
 2019-10-04 16:13:39 +03:00
Roman Khimov
705c7f106f vm: don't panic if there is no result in PopResult() 
This function is intended to be ran outside of the execute's panic recovery
mechanism, so it shouldn't panic if there is no result.
 2019-10-04 16:13:39 +03:00
Roman Khimov
a357d99624 vm: introduce MaxArraySize constant 
This is both for #373 and for interop functions that have to check some
inputs.
 2019-10-04 16:13:39 +03:00
Roman Khimov
cfa0c13322 vm: add InteropItem type for interop data 
This is an opaque data item that is to be used by the interop functions.
 2019-10-04 16:13:39 +03:00
Roman Khimov
da2156f955 vm: add batched RegisterInteropFuncs 2019-10-04 16:13:39 +03:00
Roman Khimov
26e3b6abbe vm: extend interops to contain price 
The same way C# node does.
 2019-10-04 16:13:39 +03:00
Roman Khimov
ceca9cdb67 core/vm: implement contract storage and script retrieval 
Fixes script invocations via the APPCALL instruction. Adjust contract state
field types accordingly.
 2019-10-04 16:13:39 +03:00
Roman Khimov
c3591d8897 vm: fix CHECKMULTISIG to comply with NEO VM implementation 
Testing with testnet quickly revealed that our code has an issue when the key
count doesn't equal signature count, fix it and add some comments.
 2019-10-01 13:41:26 +03:00
Evgenii Stratonikov
c7c4291774 vm: simplify APPEND implementation a bit 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
13d7770c68 vm: support Map in ARRAYSIZE 
Also make logic the same as in reference implementation
and add tests.
 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
c66f493017 vm: compare Map by reference in EQUAL 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
c0be2b2a99 vm: support Map in REMOVE 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
8b6bddca3c vm: support Map in PICKITEM and SETITEM 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
d7bb50c609 vm: implement VALUES opcode 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
2da64267b0 vm: implement KEYS opcode 2019-09-25 17:53:34 +03:00
Evgenii Stratonikov
0fb4bb05cf vm: implement HASKEY opcode 2019-09-25 12:08:41 +03:00
Evgenii Stratonikov
df18da0ac9 vm: implement NEWMAP opcode 2019-09-24 17:06:17 +03:00
Roman Khimov
ca9c9be71f vm: add CHECKSIG/VERIFY/CHECKMULTISIG implementations 
Fix #269.
 2019-09-24 13:01:54 +03:00