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711 commits

Author SHA1 Message Date
Roman Khimov
ff7d594bef vm: store refcounter directly in VM 
VM always has it, so allocating yet another object makes no sense.
 2021-08-11 13:25:58 +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
Roman Khimov
85936de254 vm: don't create reference counter when it's not needed 
* invocation stack doesn't need refcounting
 * exception stack doesn't need refcounting
 * evaluation stack always has VM-level refcounter
 2021-08-02 22:38:41 +03:00
Roman Khimov
2c2ccdca74 opcode: optimize IsValid 
Map access costs much more than array access.

name       old time/op  new time/op  delta
IsValid-8  17.6ns ± 2%   1.1ns ± 2%  -93.68%  (p=0.008 n=5+5)
 2021-08-02 21:46:19 +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
Roman Khimov
ad35db66b5
Merge pull request #2091 from nspcc-dev/tune-error-messages 
*: simplify some error messages
 2021-07-23 10:40:26 +03:00
Roman Khimov
1d8ad5b84a *: simplify some error messages 
Log:
2021-07-23T09:59:18.948+0300    WARN    contract invocation failed      {"tx": "de3e3c1f1d37e4528990f894dea5583fd320485ad3862a95eb0e8823eecf4a5f", "block": 9643, "error": "error encountered at instruction 1 (SYSCALL): error during call from native: error encountered at instruction 745 (CAT): invalid conversion: Map/ByteString"}

The word "error" appears 4 times here.
 2021-07-23 10:08:09 +03:00
Roman Khimov
6b852fc7b6
Merge pull request #2089 from nspcc-dev/fix-emit 
vm/emit: improve error message
 2021-07-22 15:17:59 +03:00
Evgeniy Stratonikov
808c30e7d7 vm/emit: improve error message 
Show unsupported type instead of value.

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-22 14:23:32 +03:00
Roman Khimov
ede410a4a7 go.mod: update ishell package 
It only adds go.mod and changes import path, that's it.
 2021-07-21 23:28:26 +03:00
Roman Khimov
0583f252ab *: create real temporary dirs and files in tests 
Improve reliability.
 2021-07-20 12:51:11 +03:00
Roman Khimov
19717dd9a8 slice: introduce common Copy helper 
It's a bit more convenient to use.
 2021-07-19 22:57:55 +03:00
Roman Khimov
a54e3516d1 slice: add Reverse function, deduplicate code a bit 2021-07-19 22:57:55 +03:00
Roman Khimov
100e97d772 util: move ArrayReverse into package of its own 
Leave just uint160 and uint256 types in util.
 2021-07-19 22:57:55 +03:00
Roman Khimov
1568ebc513 stackitem: rework struct cloning protection 
Count everything, fail early, make it more compatible with
neo-project/neo-vm#423.
 2021-07-19 15:42:42 +03:00
Roman Khimov
5f13de3a76 *: simplify some integer checks with IsUint64() 
If we need a positive number we can do `IsUint64()` instead of checking that
`Int64()` is `> 0`.
 2021-07-19 15:42:42 +03:00
Roman Khimov
233307aca5 stackitem: completely drop MaxArraySize 
Turns out C# VM doesn't have it since preview2, so our limiting of
MaxArraySize in incompatible with it. Removing this limit shouldn't be a
problem with the reference counter we have, both APPEND and SETITEM add things
to reference counter and we can't exceed MaxStackSize. PACK on the other hand
can't get more than MaxStackSize-1 of input elements.

Unify NEWSTRUCT with NEWARRAY* and use better integer checks at the same time.

Multisig limit is still 1024.
 2021-07-19 15:42:42 +03:00
Roman Khimov
ee4a647934 stackitem: limit EQUAL for deeply nested structs 
See neo-project/neo-vm#428.
 2021-07-19 15:42:42 +03:00
Roman Khimov
f89f0300f6 stackitem: improve test coverage a bit 2021-07-19 15:42:42 +03:00
Roman Khimov
df2430d5e4 stackitem: limit deserialization to MaxDeserialized items 
Follow neo-project/neo#2531. Even though it's not strictly required (our node
handles problematic script just fine) we better be compliant wrt
deserialization behavior. MaxDeserialized is introduced to avoid moving
MaxStackSize which is a VM parameter.
 2021-07-19 15:42:42 +03:00
Roman Khimov
aab18c3083 stackitem: introduce Convertible interface 
We have a lot of native contract types that are converted to stack items
before serialization, then deserialized as stack items and converted back to
regular structures. stackitem.Convertible allows to remove a lot of repetitive
io.Serializable code.

This also introduces to/from converter in testserdes which unfortunately
required to change util tests to avoid circular references.
 2021-07-19 15:42:42 +03:00
Roman Khimov
fbe8bd2d9c stackitem: limit deserialized arrays/maps 
See neo-project/neo#2531, even though they use MaxStackSize there resulting
element is not valid unless it has <=MaxArraySize elements.
 2021-07-19 15:42:42 +03:00
Roman Khimov
654c4a6589 stackitem: properly pass allowInvalid on binary deserialization 
Otherwise DecodeBinaryProtected() is broken for arrays/maps.
 2021-07-19 15:42:41 +03:00
Roman Khimov
15be763bb3 vm: limit POW, fix #2060 
Calculating pow(pow(2, 255), 0xffffffff) takes unknown amount of time. See
also neo-project/neo-vm#422.
 2021-07-19 15:42:41 +03:00
Roman Khimov
d638aee7a1
Merge pull request #2053 from nspcc-dev/stackitem-json 
Speedup stackitem json serialization
 2021-07-13 11:27:33 +03:00
Evgeniy Stratonikov
0611031fd4 stackitem/test: improve coverage for serialization 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-13 11:06:19 +03:00
Evgeniy Stratonikov
8fdc7e32f5 stackitem: cache serialized results in EncodeBinary 
```
name            old time/op    new time/op    delta
EncodeBinary-8    8.39ms ± 1%    0.05ms ±21%  -99.44%  (p=0.000 n=10+9)

name            old alloc/op   new alloc/op   delta
EncodeBinary-8    2.24MB ± 0%    0.33MB ± 0%  -85.29%  (p=0.000 n=9+10)

name            old allocs/op  new allocs/op  delta
EncodeBinary-8     65.6k ± 0%      0.0k ± 0%  -99.95%  (p=0.000 n=10+10)
```

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-13 11:06:19 +03:00
Evgeniy Stratonikov
17a3f17c74 stackitem: use byte-slice directly during encoding 
```
name            old time/op    new time/op    delta
EncodeBinary-8    10.6ms ± 1%     8.4ms ± 1%  -20.94%  (p=0.000 n=9+10)

name            old alloc/op   new alloc/op   delta
EncodeBinary-8    1.64MB ± 0%    2.24MB ± 0%  +36.18%  (p=0.000 n=8+9)

name            old allocs/op  new allocs/op  delta
EncodeBinary-8      131k ± 0%       66k ± 0%  -49.98%  (p=0.000 n=10+10)
```

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-13 11:06:18 +03:00
Evgeniy Stratonikov
c4eb7db8a5 stackitem: access value of Array/Struct directly 
```
name      old time/op    new time/op    delta
ToJSON-8    50.3µs ±34%    47.8µs ± 9%     ~     (p=0.971 n=10+10)

name      old alloc/op   new alloc/op   delta
ToJSON-8     396kB ± 0%     396kB ± 0%   -0.10%  (p=0.000 n=6+10)

name      old allocs/op  new allocs/op  delta
ToJSON-8      34.0 ± 0%      18.0 ± 0%  -47.06%  (p=0.000 n=10+10)
```

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-12 14:40:21 +03:00
Evgeniy Stratonikov
dc0a17dd0e stackitem: cache visited items while marshaling json 
```
name      old time/op    new time/op    delta
ToJSON-8    4.52ms ± 4%    0.05ms ±34%  -98.89%  (p=0.000 n=8+10)

name      old alloc/op   new alloc/op   delta
ToJSON-8    2.13MB ± 0%    0.40MB ± 0%  -81.44%  (p=0.000 n=9+6)

name      old allocs/op  new allocs/op  delta
ToJSON-8     65.6k ± 0%      0.0k ± 0%  -99.95%  (p=0.000 n=10+10)
```

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-12 14:40:21 +03:00
Evgeniy Stratonikov
69cdd5252a stackitem: add benchmark for serialization routines 
Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-12 14:40:17 +03:00
Roman Khimov
fe3c68b92d vm: panic in cloneIfStruct 
It's internal, so we can deduplicate code a bit.
 2021-07-12 11:52:24 +03:00
Roman Khimov
4000dd692c vm: make cloning limits a bit more effective 
Take actual reference counter value into account.
 2021-07-11 19:37:06 +03:00
Roman Khimov
cfe41abd35 vm: fix OOM during nested structure cloning 
Resulting item can't have more than MaxStackSize elements. Technically this
limits to MaxStackSize cloned elements but it's considered to be enough to
mitigate the issue (the next size check is going to happen during push to the
stack). See neo-project/neo#2534, thanks @vang1ong7ang.
 2021-07-11 18:47:50 +03:00
Evgeniy Stratonikov
1863023e27 vm: copy argument in unary opcodes, fix #2051 
We already do this in binary opcodes, let's be consistent.

This fixes state difference at height 275663
for tx 3c498317684d63849b03e4c58ad57ce4b19bb206b7b01bcc64233de3b3e207f4

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-07-08 17:09:04 +03:00
Roman Khimov
e62a766058 state: move nil check down to stackitem JSON processing 
We want to return real errors, not some generic thing for any kind of thing
happening.
 2021-07-07 00:38:19 +03:00
Roman Khimov
5a9efcc654 stackitem: rework error handling 
Return good named errors everywhere, export appropriate constants, make
errors.Is() work.
 2021-07-07 00:18:00 +03:00
Roman Khimov
0de949b575 stackitem: remove Item/StackItem from function names 
They're useless in a package named 'stackitem', make this package a bit more
user-friendly.
 2021-07-06 19:56:23 +03:00
Roman Khimov
b9ff07f32c stackitem: add limit to serialized items 
Standard binary serialization/deserialization is mostly used in VM to put/get
elements into/from storage, so they never should exceed MaxSize (otherwise one
won't be able to deserialize these items).

This patch leaves EncodeBinaryStackItem unprotected, but that's a streaming
interface, so it's up to the user of it to ensure its appropriate use (and our
uses are mostly for native contract's data, so they're fine).
 2021-07-06 19:34:02 +03:00
Roman Khimov
8472064bbc stackitem: refactor serialization code, add explicit context 2021-07-06 19:32:52 +03:00
Roman Khimov
1b7b7e4bec stackitem: don't overwrite error when serializing Item 
We must get out as quickly as possible.
 2021-07-06 17:51:46 +03:00
Roman Khimov
e34fa2e915 stackitem: limit JSONization nesting level 
We can have very deep reference types and attempt to JSONize them can easily
lead to OOM (even though there are no recursive references inside). Therefore
we have to limit them. While regular ToJSON() is buffer size limited to
MaxSize, ToJSONWithTypes is not and limiting it to MaxSize output will require
substantial rewriting effort while not really providing fair result, MaxSize
is more about stack item size while its JSON representation can be much bigger
because of various overheads.

Initial thought was to limit it by element count based on
MaxIteratorResultItems, but the problem here is that we don't always have this
limit in contexts using ToJSONWithTypes (like notification event
marshaling). Thus we need some generic limit which would be fine for all
users.

We at the same time have maxJSONDepth used when deserializing from JSON, so
it can be used for marshaling as well, it's not often that we have deeper
structures in real results.

Inspired by neo-project/neo#2521.
 2021-07-06 17:33:16 +03:00
Roman Khimov
6879cbcdcc stackitem: properly detect recursive references during serialization 
If we're done with element it no longer can lead to recursion error, so fix
cases like `[arr, arr]` where we have two copies of `arr` trigger this error
for no good reason (there is no recursion there).
 2021-07-06 17:10:31 +03:00
Evgeniy Stratonikov
8d67a03aec stackitem: fix Buffer deserialization 
Fix incorrect application log for transaction in N3 testnet
8eb4076f1f1c07e693eda7e810779488a2d2b50aba9b727fd237cbc3adbec9e9

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>
 2021-06-29 11:39:55 +03:00
Anna Shaleva
f95bdd9cb5 vm: serialize + rune as \u002B for byte-contained stackitems 
This commit fixes the following Go vs C# state diff:

block 74613: value mismatch for key EwAAAHN0cmVhbXMvDg==: eyJpZCI6MTQsInN0YXJ0IjoxNjIyNTAwMjAwMDAwLCJzdG9wIjoxNjIyNTAyMDAwMDAwLCJkZXBvc2l0IjoxMDAwMDAwMDAsInJlbWFpbmluZyI6MTAwMDAwMDAwLCJzZW5kZXIiOiJmeEY4RDl2ZFU3K0gwcDV3NTlyWllMNytNSlE9IiwicmVjaXBpZW50IjoiSVV6c3pveFV0S1NGVnlZRGczSmdTQTFlbTFNPSJ9 vs eyJpZCI6MTQsInN0YXJ0IjoxNjIyNTAwMjAwMDAwLCJzdG9wIjoxNjIyNTAyMDAwMDAwLCJkZXBvc2l0IjoxMDAwMDAwMDAsInJlbWFpbmluZyI6MTAwMDAwMDAwLCJzZW5kZXIiOiJmeEY4RDl2ZFU3XHUwMDJCSDBwNXc1OXJaWUw3XHUwMDJCTUpRPSIsInJlY2lwaWVudCI6IklVenN6b3hVdEtTRlZ5WURnM0pnU0ExZW0xTT0ifQ==

I.e.:
```
{"id":14,"start":1622500200000,"stop":1622502000000,"deposit":100000000,"remaining":100000000,"sender":"fxF8D9vdU7+H0p5w59rZYL7+MJQ=","recipient":"IUzszoxUtKSFVyYDg3JgSA1em1M="}
```
vs
```
{"id":14,"start":1622500200000,"stop":1622502000000,"deposit":100000000,"remaining":100000000,"sender":"fxF8D9vdU7\u002BH0p5w59rZYL7\u002BMJQ=","recipient":"IUzszoxUtKSFVyYDg3JgSA1em1M="}
```
 2021-06-08 16:40:38 +03:00
Anna Shaleva
b14fc5da7c vm: increase waiting time for vm cli program 2021-06-01 16:29:08 +03:00
Anna Shaleva
e3611bfa4c vm, cli: allow to specify flags while loading VM 2021-05-28 12:07:41 +03:00
Roman Khimov
9d2712573f *: enable godot linter and fix all its warnings 
It's important for NeoGo to have clean documentation. No functional changes.
 2021-05-12 23:17:03 +03:00
Roman Khimov
c4e084b0d8 *: fix whitespace errors 
leading/trailing newlines
 2021-05-12 22:51:41 +03:00
Roman Khimov
de5e61588d vm: simplify some test code 
gosimple: S1017: should replace this `if` statement with an unconditional `strings.TrimPrefix`
 2021-05-12 18:44:35 +03:00
Roman Khimov
7af67d2a3c vm/cli: simplify buffer-related code 
gosimple: S1030: should use buf.String() instead of string(buf.Bytes())
 2021-05-12 18:42:50 +03:00
Roman Khimov
07cdbb815c *: drop unnecessary fmt.Sprintf uses 
gosimple: S1039: unnecessary use of fmt.Sprintf
 2021-05-12 18:29:39 +03:00
Anna Shaleva
6d59689d9c core: rename Neo.Crypto.CheckMultisig interop 2021-05-11 18:38:14 +03:00
Anna Shaleva
366e79b9b8 core: rename Neo.Crypto.CheckSig interop 2021-05-11 18:37:55 +03:00
Evgeniy Stratonikov
23a4e25436 interop: remove System.Iterator.Create, fix #1935 
There are now only storage iterators. Related #1933.
 2021-05-11 12:13:30 +03:00
Anna Shaleva
9eeebf481c rpc: allow to marshal Iterators for invoke* results 2021-04-30 16:23:06 +03:00
Evgeniy Stratonikov
8fa4a576f4 vm: allow Null arguments for LT,LE,GT,GE opcodes 2021-04-29 16:10:51 +03:00
Evgeniy Stratonikov
dc393642a2 opcode: fix GTE, LTE string representations 2021-04-29 16:08:48 +03:00
Anna Shaleva
f7dcb7ae29 vm: allow emit.Array handle uint256 2021-04-16 16:20:30 +03:00
Anna Shaleva
f57187e611 vm: throw unhandled exception with message instead of panic 
The result is the same HALT state, but the exception message is the real
one got from user. Changes ported from C#:

1. Throw exception: 59b8ac73d2/src/neo-vm/ExecutionEngine.cs (L1448)
2. Prettify message: https://github.com/neo-project/neo-vm/blob/master/src/neo-vm/VMUnhandledException.cs#L28

The result is that instead of
```
2021-03-31T17:02:54.508+0300	WARN	contract invocation failed	{"tx": "2aefeb705f3a609df8767d9b45e036b9dd1eb77407e5732375981915668889b8", "block": 30640, "error": "error encountered at instruction 970 (THROW): runtime error: invalid memory address or nil pointer dereference"}
```

we'll get
```
2021-03-31T17:33:56.299+0300	WARN	contract invocation failed	{"tx": "2aefeb705f3a609df8767d9b45e036b9dd1eb77407e5732375981915668889b8", "block": 30640, "error": "error encountered at instruction 970 (THROW): unhandled exception: No authorization."}
```
in the node logs.
 2021-03-31 19:37:52 +03:00
Anna Shaleva
793f27084b vm: specify syscall ID when panicing on syscall invocation 
It's convinient to know the failing syscall without dumping
smartcontract instructions.
 2021-03-31 19:00:59 +03:00
Anna Shaleva
2bb3ff2aff vm: return more detailed error from emit.Array 2021-03-26 20:44:32 +03:00
Evgeniy Stratonikov
b780a64b4d emit: allow to emit big.Int 2021-03-11 10:12:30 +03:00
Anna Shaleva
9015e50847 core: refactor Neo.Crypto.CheckMultisigWithECDsaSecpr1 
Rename it to Neo.Crypto.CheckMultisig and remove `message` parameter.
 2021-03-10 21:46:05 +03:00
Anna Shaleva
cdaca7be3e core: use Neo.Crypto.CheckSig for standard signature verification 2021-03-10 21:45:58 +03:00
Anna Shaleva
14ade42101 core: remove System.Binary.[Serialize, Deserialize] syscalls 
And move their tests to native StdLib.
 2021-03-10 19:24:19 +03:00
Evgeniy Stratonikov
ded6a70335 vm: add ParseSignatureContract() 2021-03-09 15:43:57 +03:00
Evgeniy Stratonikov
55009153a9 vm/emit: emit Boolean values correctly 
We should convert both `true` and `false` values.
 2021-03-09 13:34:22 +03:00
Roman Khimov
0c04b403b4
Merge pull request #1794 from nspcc-dev/fix/json 
stackitem: escape control characters in `ToJSON()`
 2021-03-02 13:37:27 +03:00
Evgeniy Stratonikov
e5fbf04529 stackitem: escape control characters in ToJSON() 
Decoding uses `json.Decoder` which handles everything for us.
 2021-03-02 10:47:02 +03:00
Roman Khimov
10cc19b33c
Merge pull request #1791 from nspcc-dev/drop-go-1-13 
*: drop go 1.13
 2021-03-01 17:20:26 +03:00
Anna Shaleva
2c81fc8b8e *: upgrade tests to use T.Cleanup() 2021-03-01 17:08:00 +03:00
Evgeniy Stratonikov
53327bf475 vm/testdata: update C# json tests 2021-03-01 16:58:53 +03:00
Evgeniy Stratonikov
d255c4a517 vm: implement SQRT opcode 2021-03-01 16:58:53 +03:00
Evgeniy Stratonikov
6496782736 vm: implement POW opcode 2021-03-01 16:58:53 +03:00
Roman Khimov
158f0d9d9c native/vm: add script check for deployed contracts 
Refs. #1699.
 2021-02-09 22:31:26 +03:00
Roman Khimov
b892db9976 vm: add instruction correctness check 
See neo-project/neo-vm#392.
 2021-02-09 22:31:26 +03:00
Anna Shaleva
6a4e312eac core: move GetPrice from core to interop 
We have additional logic for getting BaseExecFee policy value. This
logic should be moved to interop context instead of being in Policer,
because Policer is just an interface over Policy contract.

After moving this logic to interop context, we need to use it to define
BaseExecFee instead of (Policer).BaseExecFee. Thus, moving
(*Blockchain).GetPrice to (*Context).GetPrice is necessary.
 2021-02-05 11:36:32 +03:00
Roman Khimov
f7cb00b82d
Merge pull request #1678 from nspcc-dev/nameservice 
Implement NameService
 2021-02-01 22:52:59 +03:00
Evgeniy Stratonikov
e4ff8326b5 native: add NameService 2021-02-01 21:40:21 +03:00
Roman Khimov
d822e8dc21 vm: add test for neo-project/neo-vm#393 2021-02-01 16:39:54 +03:00
Evgeniy Stratonikov
73f888f02e core: allow to overload contract methods 
Multiple methods with different parameter count can co-exist.
 2021-01-27 12:51:07 +03:00
Evgeniy Stratonikov
49de8161ef core: implement LoadToken handler 2021-01-22 09:04:37 +03:00
Evgenii Stratonikov
bb706aa55b vm: implement CALLT opcode 2021-01-21 19:30:04 +03:00
Evgeniy Stratonikov
324107b31e vm: implement POPITEM opcode 2021-01-19 09:46:01 +03:00
Roman Khimov
f39ede9869 opcode: add CALLT opcode, move ABORT/ASSERT 
Refs. #1644. Hash compatibility test temporarily disabled, to be enabled when
it's up to date with current C# master.
 2021-01-18 00:14:52 +03:00
Evgeniy Stratonikov
2130e17f0c core,vm: remove System.Enumerator.* interops 
Map iterator now returns key-value pair, while array/byte-array
iterators work like old enumerators.
Follow neo-project/neo#2190.
 2021-01-15 21:11:32 +03:00
Evgeniy Stratonikov
d04b000748 vm: remove iterator/enumerator Concat API 
Follow neo-project/neo#2170.
 2021-01-15 21:08:59 +03:00
Evgenii Stratonikov
1c0c331e25 core: update System.Contract.Call syscall 
1. Remove `System.Contract.CallEx`.
2. Extend number of parameters.
3. Add return value count to `VM.Context`.
 2021-01-14 18:23:36 +03:00
Evgenii Stratonikov
dbe81f9b80 smartcontract: move flags to a separate package 2021-01-14 17:52:09 +03:00
Evgenii Stratonikov
1d4d93b3eb vmcli: use manifest for method execution 2021-01-11 10:45:42 +03:00
Anna Shaleva
be3692136e vm: adjust default VM interops prices 
It might be not so important, because we use them only for VM-CLI, but
let's keep them equal to the standard interops prices.
 2020-12-29 11:11:56 +03:00
Evgenii Stratonikov
8c22d27acc state: allow to encode AppExecResult with recursive items 
1. Encode them to a special type, decode to `nil`.
2. `Interop` can be encoded in JSON, this info should also be preserved.
 2020-12-18 13:04:31 +03:00
Evgenii Stratonikov
18b331d765 stackitem: fix JSON encoding 
Encode both `Buffer` and `ByteString` to UTF-8 bytes.
Follow https://github.com/neo-project/neo/pull/1715 .
 2020-12-11 13:30:47 +03:00
Evgenii Stratonikov
e63191d31f core: hangle CallingScriptHash correctly 
When using native contracts, script hash of second-to-top context
on invocation stack does not always correspond to a real calling
contract.
 2020-12-10 16:52:36 +03:00
Evgenii Stratonikov
e903e40085 core: call from native contracts synchronously 
Follow neo-project/neo#2130.
 2020-12-10 16:43:46 +03:00
Evgenii Stratonikov
76a6ddc3a4 vmcli/test: run shell after providing input 
In some cases, `Run()` can read from input before we have written
anything to it.
 2020-12-10 13:35:52 +03:00
Evgenii Stratonikov
e4ee7cd407 vm: improve coverage for default interops 2020-12-02 15:54:03 +03:00
Evgenii Stratonikov
33f13ab1c0 vmcli: add tests 2020-12-02 10:49:37 +03:00
Evgenii Stratonikov
f8728e4f44 vmcli: unify error messages 2020-12-02 10:49:37 +03:00
Evgenii Stratonikov
bea5125d42 vmcli: return after error in break 2020-12-02 10:49:37 +03:00
Evgenii Stratonikov
d7ffa89811 vmcli: set breakpoint before the instruction 
Breakpoint should occur before actual instruction execution.
 2020-12-02 10:49:37 +03:00
Evgenii Stratonikov
2f39701d76 vm: provide writer in PrintOps() 
Make it more flexible and testable. Fallback to using
stdout if no writer is provided.
 2020-12-02 10:49:37 +03:00
Roman Khimov
d93aa745bb contract: avoid going to the DB for entry scripts 
This optimizes out DB access for non-deployed contracts under the assumption
that deployed ones are always loaded via `LoadScriptWithHash` (and if they're
not --- it's a bug anyway with the new hashing model) which actually is a very
popular case (every entry script does that).
 2020-11-27 21:47:08 +03:00
Anna Shaleva
0f68528095 core: add callback to VM context 2020-11-25 18:37:29 +03:00
Evgenii Stratonikov
7d91a3a89e pkg: move internal/ package to the root directory 
This way we can use it in scripts and cli.
 2020-11-24 16:39:56 +03:00
Evgenii Stratonikov
42ae226f9e native: use proper stack for result 
When native method calls other contract result should be put
on the stack of current context. With oracles this problem wasn't
noticed because of void return type.
 2020-11-24 12:17:28 +03:00
Evgenii Stratonikov
4de233b339 emit: allow to emit nested arrays 2020-11-24 11:23:44 +03:00
Roman Khimov
bf9ecc2bd3 vm: improve REVERSEITEMS for 1M Buffer 
Before:
BenchmarkOpcodes/REVERSEITEMS/buffer/1M-8                   1680            758747 ns/op

After:
BenchmarkOpcodes/REVERSEITEMS/buffer/1M-8                   2649            442720 ns/op
 2020-11-06 23:31:26 +03:00
Roman Khimov
2522271161 vm: use Application trigger by default 
Don't mess with System, it's too powerful to be the default.
 2020-10-29 19:17:07 +03:00
Roman Khimov
6849499f56
Merge pull request #1493 from nspcc-dev/vm-opcode-bench 
vm: add opcode benchmark
 2020-10-16 11:02:04 +03:00
Roman Khimov
0709e20fbb vm: add opcode benchmark 
For future optimizations and price adjustments.
 2020-10-15 16:27:36 +03:00
Roman Khimov
27a01c7759 vm: optimize stack traversal on exception handling 
Before:
BenchmarkOpcodes/THROW/0/1-8       10000               506 ns/op
BenchmarkOpcodes/THROW/0/16-8      10000               524 ns/op
BenchmarkOpcodes/THROW/255/0-8     10000             49363 ns/op
BenchmarkOpcodes/THROW/1023/0-8                    10000           1628480 ns/op

After:
BenchmarkOpcodes/THROW/0/1-8       10000               575 ns/op
BenchmarkOpcodes/THROW/0/16-8      10000               516 ns/op
BenchmarkOpcodes/THROW/255/0-8     10000              8290 ns/op
BenchmarkOpcodes/THROW/1023/0-8                    10000             34605 ns/op
 2020-10-15 16:20:34 +03:00
Roman Khimov
3d8434a50c vm: fix invocation stack checks 
It should be done on every new context push.
 2020-10-15 16:20:34 +03:00
Roman Khimov
fe0ec91636 vm: optimize reversing items on the stack 
Before:
BenchmarkOpcodes/REVERSE3/null-8                   10000               335 ns/op
BenchmarkOpcodes/REVERSE3/integer-8                10000               355 ns/op
BenchmarkOpcodes/REVERSE3/big_bytes-8              10000               344 ns/op
BenchmarkOpcodes/REVERSE4/null-8                   10000               353 ns/op
BenchmarkOpcodes/REVERSE4/integer-8                10000               336 ns/op
BenchmarkOpcodes/REVERSE4/big_bytes-8              10000               324 ns/op
BenchmarkOpcodes/REVERSEN/5/null-8                 10000               350 ns/op
BenchmarkOpcodes/REVERSEN/5/integer-8              10000               358 ns/op
BenchmarkOpcodes/REVERSEN/5/big_bytes-8            10000               351 ns/op
BenchmarkOpcodes/REVERSEN/1024/null-8              10000            982413 ns/op
BenchmarkOpcodes/REVERSEN/1024/integer-8                   10000            994926 ns/op
BenchmarkOpcodes/REVERSEN/1024/big_bytes-8                 10000            992951 ns/op

After:
BenchmarkOpcodes/REVERSE3/null-8                   10000               241 ns/op
BenchmarkOpcodes/REVERSE3/integer-8                10000               255 ns/op
BenchmarkOpcodes/REVERSE3/big_bytes-8              10000               249 ns/op
BenchmarkOpcodes/REVERSE4/null-8                   10000               249 ns/op
BenchmarkOpcodes/REVERSE4/integer-8                10000               267 ns/op
BenchmarkOpcodes/REVERSE4/big_bytes-8              10000               292 ns/op
BenchmarkOpcodes/REVERSEN/5/null-8                 10000               337 ns/op
BenchmarkOpcodes/REVERSEN/5/integer-8              10000               327 ns/op
BenchmarkOpcodes/REVERSEN/5/big_bytes-8            10000               293 ns/op
BenchmarkOpcodes/REVERSEN/1024/null-8              10000              5414 ns/op
BenchmarkOpcodes/REVERSEN/1024/integer-8                   10000              5487 ns/op
BenchmarkOpcodes/REVERSEN/1024/big_bytes-8                 10000              5609 ns/op
 2020-10-15 16:19:59 +03:00
Anna Shaleva
fe1f0a7245 core: introduce CheckReturnState constants 
At the moment we should have 3 possible options to check return state
during vm context unloading:
	* no check
	* ensure the stack is empty
	* ensure the stack is not empty

It is necessary to distinguish them because new _deploy method shouldn't
left anything on stack. Example: if we use _deploy method before some
ordinary contract method which returns one value. Without these changes
the contract invocation will fail due to 2 elements on stack left after
invocation (the first `null` element is from _deploy, the second element
is return-value from the ordinary contract method).
 2020-10-13 19:14:44 +03:00
Roman Khimov
124ce9d247
Merge pull request #1455 from nspcc-dev/get_invocation_counter 
core: remove error from runtime.GetInvocationCounter
 2020-10-08 16:34:40 +03:00
Anna Shaleva
cbf89fbb19 vm: add Call method which increments invocation counter 2020-10-08 16:25:45 +03:00
Anna Shaleva
6ce00fde82 vm, core: move invocation counter from InteropContext to VM 2020-10-08 11:33:26 +03:00
Roman Khimov
0120a8f239 stackitem: limit buffer/bytearray reads upon deserialization 
This is not the way it's done in C#, but that's the most sensible approach to
me.
 2020-10-07 23:08:20 +03:00
Roman Khimov
64e9775707 vm/stackitem: limit reads for bigint values 
They can't exceed 33 bytes.
 2020-10-07 23:07:10 +03:00
Evgenii Stratonikov
96bca91e4b vm: handle very big int creation properly 
Determine size as in reference implementation instead of
`big.Int.BitLen()`

Close #1437.
 2020-10-07 11:50:42 +03:00
Roman Khimov
d6a1a22afa
Merge pull request #1452 from nspcc-dev/contract/deploy 
Support `_deploy` method
 2020-10-06 19:54:14 +03:00
Evgenii Stratonikov
b2a3a0851e emit: accept multiple opcodes in Opcode() 2020-10-06 18:03:25 +03:00
Evgenii Stratonikov
0b76f875c7 core: allow Null in System.Contract.Update 
Null means absense of script or manifest, empty
byte-slice is an error.

Related #1459.
 2020-10-06 10:34:45 +03:00
Anna Shaleva
6761c297b5 vm: add test to check reference counter after PACK-UNPACK 
Related issue: https://github.com/neo-project/neo-vm/pull/370
 2020-09-29 18:46:20 +03:00
Anna Shaleva
66ca654b07 vm: refactor ISNULL opcode handling 2020-09-29 18:46:20 +03:00
Anna Shaleva
543fd58e93 vm: restrict map key size 2020-09-29 18:46:15 +03:00
Anna Shaleva
1f9b92c295 vm: restrict comparable ByteArray length 
MaxByteArrayComparableSize should equals to 65535.
 2020-09-29 10:42:01 +03:00
Roman Khimov
26339c75dc vm/core: drop old key caching system 
Obsoleted by f5f58a7e91.
 2020-09-10 14:43:24 +03:00
Evgenii Stratonikov
04f5fdefa0 vm: properly unload context on exception 
Do not copy exception context on CALL*.
 2020-08-27 10:28:50 +03:00
Evgenii Stratonikov
fa1d1a8b00 compiler: support defer statement 
Compile `defer` statement to a TRY/ENDFINALLY opcode pair.
 2020-08-27 10:28:50 +03:00
Evgenii Stratonikov
ab4cd8a990 vm: fix typo in MEMCPY handling 2020-08-25 08:53:29 +03:00
Roman Khimov
681ae4d5d6 vm: fix TRY offsets check 
TRY can have an offset != 0 and still it can't have both parameters set to
zero.
 2020-08-24 16:20:57 +03:00
Roman Khimov
32112249d5 vm: limit maximum nesting of exception contexts 
Follow neo-project/neo#365. neo-vm submodule is updated just to show the
relevant latest commit, nothing really changed there.
 2020-08-24 15:37:39 +03:00
Roman Khimov
324f4c265b stackitem: don't copy existing slices for TryBytes 
Most often we only need to read them and it doesn't require copying. Make an
explicit copy (and copy only things we need!) where needed.

After the recent neo-vm tests update our vm package testing time jumped to
~12s, with this change it's now more like ~8s.
 2020-08-22 23:36:38 +03:00
Roman Khimov
77ea3d361b vm: update neo-vm tests, simplify parsing 
We no longer have "*N" notation, see neo-project/neo-vm#326.
 2020-08-22 23:35:29 +03:00
Roman Khimov
74097ae8b0 stackitem: add NewPointerWithHash() to save on hash calculations 
Inspired by neo-project/neo-vm#352. We can't directly compare slices, so we're
better optimize things we already have. At the same time this code would
behave a bit different if A is to call B and then B is call A and then some
pointer from the first A invocation is to be compared with a pointer from the
second A invocation. Not sure it really matters.
 2020-08-22 22:19:44 +03:00
Roman Khimov
93f51f922a stackitem: return error in TryBytes() for big byte strings 
Follow neo-project/neo-vm#349.
 2020-08-21 21:05:47 +03:00
Roman Khimov
a7670303e8 stackitem: change Bool() to TryBool(), prepare for its failures 2020-08-21 20:55:20 +03:00
Evgenii Stratonikov
681e81420a vm: make (*Context).IP() return instruction pointer 
It is misleading to return +1 in code, and user representation
can always be altered.
 2020-08-21 08:44:32 +03:00
Evgenii Stratonikov
a080d24cf5 vm: fix debugger and add tests 
1. `Run()` must be able to continue execution after a breakpoint.
2. VM must stop right before the breakpoint, not after.
3. Initial vm state is NONE, not HALT.
 2020-08-18 11:26:27 +03:00
Evgenii Stratonikov
8659fd79e5 vm: add tests for ByteString enumerator/iterator 2020-08-18 11:24:48 +03:00
Evgenii Stratonikov
b2e53fedac vm: pretty-print SYSCALL opcode 2020-08-14 14:22:46 +03:00
Evgenii Stratonikov
7854dcfd8f core: replace interop names with named constants 2020-08-14 14:21:54 +03:00
Evgenii Stratonikov
f3650e20b0 vm: move InteropNameToID to a separate package 2020-08-14 13:54:11 +03:00
Evgenii Stratonikov
9cc6e22365 vm: pretty-print ST*/LD* opcodes 2020-08-13 10:38:13 +03:00
Evgenii Stratonikov
7d08d38cd2 vm: pretty-print PUSHINT* opcodes 2020-08-13 10:38:13 +03:00
Evgenii Stratonikov
92ddc474d8 vm: pretty-print CONVERT and ISTYPE opcodes 2020-08-13 10:38:13 +03:00
Evgenii Stratonikov
a34ba92d46 compiler: allow to split main package across multiple files 2020-08-11 11:12:55 +03:00