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503 commits

Author SHA1 Message Date
Evgenii Stratonikov
a5f6e0e53d vm: implement NEWBUFFER opcode 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
a3a3a77431 vm: make slice opcodes emit Buffer 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
c3f7832f3b vm: implement Buffer stack item 
Buffer is a stack item type introduced in NEO3
which represents mutable byte-array.
 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
ee9adcdc5c vm: check ByteArray size before converting to Integer 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
8f5f6fba07 vm: copy slice in (*ByteArrayItem).TryBytes() 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
0cb6dc47e4 vm: implement slot-related opcodes 
1. Slot is a new mechanism for storing variables during execution
which is more convenient than alt.stack. This commit implements
support for slot opcodes in both vm and compiler.
2. Remove old alt.stack opcodes.
3. Do not process globals at the start of every function, but instead
load them single time at main.
 2020-05-12 16:23:08 +03:00
Evgenii Stratonikov
a6271f6bf2 vm: reorder splice opcodes 2020-05-12 16:15:35 +03:00
Evgenii Stratonikov
2cec088f08 vm: add reference counter to slots 2020-05-12 16:15:14 +03:00
Evgenii Stratonikov
af2abedd86 vm: implement reference counter 
It is convenient to have all reference-counting logic
in a separate struct.
 2020-05-12 16:15:14 +03:00
Evgenii Stratonikov
81cbf183af vm: implement storage slots 2020-05-12 16:15:14 +03:00
Evgenii Stratonikov
1d3fb3d6f5 vm: implement PUSHA/CALLA opcodes 2020-05-12 12:56:51 +03:00
Evgenii Stratonikov
7fcd537b09 vm: implement Pointer stack item 
Pointer is a generic address type in VM.
It is used for calling lambda-expressions.
 2020-05-12 12:55:31 +03:00
Evgenii Stratonikov
c0147c76ac emit: remove tailCall argument from AppCall 
There is no TAILCALL opcode in NEO3.
 2020-05-07 14:59:01 +03:00
Evgenii Stratonikov
73c82584a3 vm,compiler: replace APPCALL with System.Contract.Call 
Contract calls are performed via syscall System.Contract.Call
in NEO3. This implements this in compiler and removes APPCALL from the
VM.
 2020-05-07 14:52:03 +03:00
Evgenii Stratonikov
f9f3192b48 vm: move RET and SYSCALL opcodes 2020-05-07 13:23:05 +03:00
Evgenii Stratonikov
977c431bf1 vm: implement ASSERT/ABORT opcodes 
Rename THROWIFNOT to ASSERT, add ABORT opcode.
ABORT cannot be caught, but the implementation should be postponed until
exception handling is implemented.
 2020-05-06 15:54:19 +03:00
Evgenii Stratonikov
dd20320615 vm: remove XSWAP/XTUCK opcodes 
Regenerate RPC testchain as these were used in compiler.
 2020-05-06 13:05:22 +03:00
Evgenii Stratonikov
d18199ce42 vm: implement REVERSE* opcodes 
Use new opcodes in the compiler instead of XSWAP/ROLL.
 2020-05-06 13:03:49 +03:00
Evgenii Stratonikov
c8a1188ee1 vm: implement CLEAR opcode 2020-05-06 13:02:57 +03:00
Evgenii Stratonikov
525527f750 vm: reorder stack opcodes 
Leave *ALTSTACK opcodes for now as they are needed in compiler while
slot opcodes are not yet here.
 2020-05-06 13:02:14 +03:00
Evgenii Stratonikov
115919aaf7 vm: process OLDPUSH1 at the context level 
The only usecase for this opcode is single-byte verification scripts.
 2020-05-06 13:00:00 +03:00
Anna Shaleva
5ece9922c1 vm: hide GetContextScriptHash() method 
After adding ScriptHashGetter interface to vm, there's no need in
GetContextScriptHash() to be exported.
 2020-05-04 11:53:31 +03:00
Anna Shaleva
73167999cc core: add cosigners field to transaction 
closes #864
 2020-05-04 11:53:31 +03:00
Anna Shaleva
9ecac14aee vm: fix bug in GetContextScriptHash() 
v.Istack.Peek(n) can return nil pointer, so .Value() on this pointer
leads to panic here. Fixed by adding nil check.
 2020-05-04 11:49:14 +03:00
Evgenii Stratonikov
c8328981ec vm: refactor tests 
Most of the tests follow the same logic:
push items on stack -> execute program -> check single result.
This commit reuses this function in most of the tests.
 2020-04-30 19:29:52 +03:00
Evgenii Stratonikov
9081211f12 vm: implement NOTEQUAL opcode 2020-04-30 18:00:15 +03:00
Evgenii Stratonikov
70f0c656b0 vm: check Integer size on creation 2020-04-30 18:00:15 +03:00
Evgenii Stratonikov
a64a0f2681 vm: reorder arithmetic opcodes 2020-04-30 18:00:15 +03:00
Evgenii Stratonikov
519b31a704 vm: remove crypto-related opcodes 
All cryptography has moved to interops in NEO3.
There is no SHA256 interop RN, but it is to appear later.
Closes #777.
 2020-04-29 19:16:38 +03:00
Evgenii Stratonikov
4b064e18aa emit: converto to Boolean in Bool() 2020-04-28 17:36:58 +03:00
Evgenii Stratonikov
7e98a2ffa0 vm: implements CONVERT opcode 2020-04-28 16:38:52 +03:00
Evgenii Stratonikov
be38798785 vm: move Bool method to the StackItem interface 2020-04-28 15:13:41 +03:00
Evgenii Stratonikov
dca257f584 vm: move ISNULL opcode 
Change it according to NEO3-preview2.
 2020-04-27 16:09:03 +03:00
Evgenii Stratonikov
7c3d7c0261 vm: implement NEWARRAYT opcode 2020-04-27 09:06:48 +03:00
Evgenii Stratonikov
d3b9aef8e2 vm: implement ISTYPE opcode 
Also make StackItemType public and reorder it according to NEO3.
 2020-04-27 09:01:26 +03:00
Evgenii Stratonikov
48a41bd737 vm: implement CLEARITEMS opcode 2020-04-27 09:01:26 +03:00
Evgenii Stratonikov
9fd04aefa5 vm: implement NEWARRAY0 and NEWSTRUCT0 opcodes 2020-04-24 13:49:10 +03:00
Evgenii Stratonikov
03761421f8 vm: reorder Array/Map opcodes 
Also SIZE can be used for both Arrays/Maps and ByteArrays.
 2020-04-24 13:48:44 +03:00
Evgenii Stratonikov
d6624a92ca vm: implement new JMP* and CALL* opcodes 
In compiler JMP*_L opcodes are always used, as this requires less effort.
 2020-04-24 10:16:41 +03:00
Evgenii Stratonikov
fba185cd99 vm: remove stack isolation opcodes 
They are not present in NEO3 and will be creating additional difficulties
during future flow-control opcodes implementation.
 2020-04-24 10:15:14 +03:00
Evgenii Stratonikov
008e6eb233 vm: implement new PUSH opcodes 2020-04-23 10:52:28 +03:00
Evgenii Stratonikov
1a54be279e vm: simplify SimpleCall test 
It was taken from the compiler output, but there is
no need in using a lot of complex instructions.
 2020-04-23 10:36:44 +03:00
Evgenii Stratonikov
cde4ccf01c vm: remove CHECKSIG/VERIFY/CHECKMULTISIG opcodes 2020-04-20 11:55:24 +03:00
Evgenii Stratonikov
4740d937aa vm: dont use SetCheckedHash outside of vm package 2020-04-20 11:55:24 +03:00
Evgenii Stratonikov
941410a840 core: change verification scripts to new format 
Verification scripts now invoke Neo.Crypto.* interops instead of
CHECKSIG/VERIFY opcodes.
 2020-04-20 11:55:24 +03:00
Roman Khimov
91f8626c42 vm: disallow negative shifts for SHL/SHR 
Follow neo-project/neo-vm#257 change for Neo 3.
 2020-04-19 19:15:00 +03:00
Evgenii Stratonikov
ceff8736f2 vm: use ID-based syscalls 
In NEO3 SYSCALL opcode has 4-byte ID parameter.
This commit removes support for string-based syscalls and
changes SYSCALL's parameter to be fixed 4-byte value.
 2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
bfbbef952a vm: move InteropNameToID to emit package 2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
93d2a3e031 vm: serialize zero Integer to an empty ByteArray 2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
5dba30a49d vm: update bool -> []byte conversion to NEO 3 
This reverts commit 4c688355bc.
 2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
2fd26287c5 vm: update SUBSTR to NEO3 version 
This reverts commit 9ebb793009.
 2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
f5933c83c6 vm: update json tests to neo3 branch 
Skip them until all opcodes will be implemented.
 2020-04-17 11:46:31 +03:00
Evgenii Stratonikov
3831aec53f vm: make NewBigInteger accept *big.Int 
It creates big.Int internally anyway, so this is the most flexible way.
 2020-04-16 15:54:58 +03:00
Evgenii Stratonikov
b446753c57 core,vm: move get/putContextScriptHash to vm package 2020-04-16 15:54:52 +03:00
Evgenii Stratonikov
be407332b9 vm: add TryInteger() to StackItem interface 
Conversion should be done in a StackItem, not in an Element.
 2020-04-16 14:05:32 +03:00
Evgenii Stratonikov
948729137f vm: remove HASH160/HASH256 opcodes 2020-04-13 13:47:39 +03:00
Evgenii Stratonikov
c23af595c9 core: implement Neo.Crypto.ECDsaCheckMultisig interop 2020-04-13 13:47:39 +03:00
Evgenii Stratonikov
1611ede58c crypto/keys: implement NewPublicKeyFromBytes() 
It is convenient to have a single function instead of
allocating new `PublicKey` and using `DecodeBytes()` on it.
 2020-04-13 13:13:15 +03:00
Roman Khimov
5a22651e36
Merge pull request #784 from nspcc-dev/neo3/null 
vm: support NULL stack item
 2020-04-10 10:38:17 +03:00
Anna Shaleva
9f0bc2aaf5 vm: add tests to CALL* instructions 
closes #452
 2020-04-09 11:20:39 +03:00
Anna Shaleva
495c1b0565 vm: add tests for missing bit and numeric operations 
Added tests for:
  - bit operatoins: AND, OR, XOR
  - numeric operations: BOOLOR, MIN, MAX, WITHIN, NEGATE
 2020-04-07 18:10:31 +03:00
Evgenii Stratonikov
96806262bf vm: handle negative arguments in SHL/SHR 
Do it as in reference implementation: a >> -b == a << b.
 2020-04-06 10:46:35 +03:00
Evgenii Stratonikov
0023c4f1f6 vm: use truncated division in MOD 
Mimic C#'s `%` behavior.
Related 4b44190 (#773).
 2020-04-06 09:30:48 +03:00
Evgenii Stratonikov
f7f48d0048 vm: implement ISNULL opcode 2020-04-02 14:15:17 +03:00
Evgenii Stratonikov
3db030bbb6 vm: implement PUSHNULL opcode 2020-04-02 14:15:17 +03:00
Evgenii Stratonikov
e50b529631 vm: implement Null item 2020-04-02 14:15:17 +03:00
Roman Khimov
2d0ad30fcf vm: rework Map with internal slice representation 
Which makes iterating over map stable which is important for serialization and
and even fixes occasional test failures. We use the same ordering here as
NEO 3.0 uses, but it should also be fine for NEO 2.0 because it has no
defined order.
 2020-04-01 19:33:53 +03:00
Roman Khimov
3dbe549a61 smartcontract: store MapType Parameter as a slice of KV pairs 
Fixes #809.

Basically, there are three alternative approaches to fixing it:
 * allowing both []byte and string for ByteArrayType value
   minimal invasion into existing code, but ugly as hell and will probably
   backfire at some point
 * storing string values in ByteArrayType
   incurs quite a number of type conversions (and associated data copying),
   though note that these values are not changed usually, so dynamic
   properties of []byte are almost irrelevant here
 * storing only []byte values in ByteArrayType
   makes it impossible to use them as map keys which can be solved in several
   ways:
   - via an interface (Marshalable)
     which is good, but makes testing and comparing values in general harder,
     because of keys mismatch
   - using serialized Parameter as a key (in a string)
     which will need some additional marshaling/unmarshaling
   - converting MapType from map to a slice of key-value pairs
     not a bad idea as we don't use this map as a map really, the type
     itself is all about input/output for real VM types and this approach is
     also a bit closer to JSON representation of the Map
 2020-04-01 19:21:00 +03:00
Anna Shaleva
a8fa9c9244 vm: add tests to stack_item.go 
closes #199
 2020-03-31 17:18:13 +03:00
Roman Khimov
0d482ceb7f
Merge pull request #808 from nspcc-dev/fix-map-serialization 
vm: make map serialization more compatible with C#
 2020-03-29 13:40:52 +03:00
Roman Khimov
665bf78d11 vm: make map serialization more compatible with C# 
C# pushes value and key to the stack of non-serialized items, so key gets
serialized first followed by value. Fixes #806.

Notice though that neither IDictionary in C#, nor map in Go have elements
ordered, so we can easily get a difference in KV pairs order and it would be
impossible to fix.
 2020-03-28 17:25:42 +03:00
Evgenii Stratonikov
db2dccf7cb emit: implement AppCallWithOperationAndArgs 
It is nice to have a typical task of calling contract method
with specific arguments incapsulated inside some function.
 2020-03-27 11:05:36 +03:00
Evgenii Stratonikov
4522eed1bb vm: fix offset for CALLI opcode 
It is different from other JMP* and +2 should be added to the parameter.
 2020-03-26 13:09:55 +03:00
Evgenii Stratonikov
dc8fb13021 vm: make NewBigInteger accept int64 
It is more correct upconvert to int64 if needed,
so precision is never lost.
 2020-03-24 11:10:56 +03:00
Roman Khimov
5148b98f43
Merge pull request #773 from nspcc-dev/fix/bigint 
vm: use truncated division for Integers
 2020-03-23 18:01:21 +03:00
Evgenii Stratonikov
954e8cdcf1 vm: allow to push integer-like items to stack 
Perform automatic conversion of non-standard integer types to
int64 if possible.

Closes #776.
 2020-03-18 12:58:31 +03:00
Evgenii Stratonikov
4b44190485 vm: use truncated division for Integers 
When divisor is negative, the result is truncated towards
zero.
 2020-03-17 15:45:56 +03:00
Roman Khimov
1b5dd53e07
Merge pull request #746 from nspcc-dev/fix/equal 
vm: implement EQUAL opcode properly

Fixes #745, #749.
 2020-03-12 11:46:51 +03:00
Evgenii Stratonikov
dfc59129c7 vm: implement EQUAL opcode properly 
When comparing elements of different types, conversions
should be performed. This commit implement custom equality
predicate for each stack item type.
 2020-03-11 17:19:10 +03:00
Evgenii Stratonikov
5da82e8cf0 vm: add TryBytes() to StackItem interface 
Conversion should be done in a StackItem, not in an Element.
 2020-03-11 16:33:46 +03:00
Roman Khimov
8318adac56 vm: add support for dynamic invocations in APPCALL 
Fixes #740.
 2020-03-10 17:17:36 +03:00
Evgenii Stratonikov
8819d4f970 vm: implement ParseMultisigContract() 
When creating witness for a multisig contract, it is
needed to extract the order of public keys from it.
 2020-03-05 09:43:14 +03:00
Roman Khimov
e41d434a49 *: move all packages from CityOfZion to nspcc-dev 2020-03-03 17:21:42 +03:00
Roman Khimov
56e37ad6ba vm: drop duplicating stackItem structure, build JSON from Parameters 
smartcontract.Parameter has everything needed now.
 2020-03-03 15:38:03 +03:00
Roman Khimov
9b4fd99fbc vm: break circular references when recursing into ToContractParameters 
Reference types can have circular pointers to each other, thus we need to
control recursion.
 2020-03-03 15:38:03 +03:00
Evgenii Stratonikov
6541bd4d42 vm: use Boolean in (*BoolItem).String() 2020-03-02 18:01:49 +03:00
Roman Khimov
252a9f2f31
Merge pull request #690 from nspcc-dev/feature/getapplicationlog 
rpc: implement getapplicationlog RPC
 2020-03-02 17:41:32 +03:00
Anna Shaleva
ff4384d7ff rpc: implement getapplicationlog RPC 
Closes #500
 2020-03-02 17:25:27 +03:00
Evgenii Stratonikov
a3dacd3b74 tests: replace t.Fatal with require where possible 
This makes tests less verbose and unifies the style
they are written in.
 2020-03-02 17:22:27 +03:00
Evgenii Stratonikov
5e229d84d4 compiler: use uint16 for label numbers 
As noted in #687 this will make compiler a bit more predictable.
 2020-02-21 17:45:45 +03:00
Evgenii Stratonikov
3e84f2bdf8 compiler: rewrite jump targets properly 
Old implementation could view 0x62 byte in
a script as a JMP instruction irregardless of whether it is
a real opcode or a part of a parameter of another instruction.
In this commit instructions are decoded together with parameters
during jump label rewriting.
 2020-02-12 10:58:53 +03:00
Roman Khimov
268cad5c06
Merge pull request #548 from nspcc-dev/feature/multisig 
vm: implement parallel algorithm for CHECKMULTISIG
 2020-02-08 16:10:34 +03:00
Roman Khimov
9b9adb28c1
Merge pull request #642 from nspcc-dev/feature/emit 
vm, compiler: move Emit* functions to a separate package

Closes #449, #534.
 2020-02-08 15:56:48 +03:00
Roman Khimov
b805b1a71b vm: make SerializeItem/DeserializeItem public APIs 
They're useful as wrappers around EncodeBinaryStackItem/DecodeBinaryStackItem.
 2020-02-07 15:34:59 +03:00
Roman Khimov
7e7ce7f19f vm: rephrase serialization errors 
Seeing some
    blockQueue: failed adding block into the blockchain        {"error": "failed to store notifications: not supported", "blockHeight": 713984, "nextIndex": 713985}
in logs is not very helpful.
 2020-02-07 11:53:53 +03:00
Evgenii Stratonikov
a8dc704197 emit: add tests for Int 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
6fd3f0fa48 emit: add tests for Bytes 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
5e992d8cdd emit: add tests for Syscall, Jmp 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
8243a8b3a7 emit: use io.BinWriter instead of bytes.Buffer 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
698c647f07 emit: refactor tests 
Add structure and call Bytes() method on buffer once.
 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
1400ecfdde emit: fix Int to serialize integers in correct format 
Related #605, #623.
 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
c821e1c4c8 vm: move IntToBytes and BytesToInt to emit package 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
4d8a3a359b vm: move Emit* functions to a separate package 
Also strip 'Emit' prefix because 'emit' is now
in the package name.
 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
2a86149c82 vm: leave single CHECKMULTISIG implementation 
Remove sequential implementation and benchmarks.
They will be still present in commit history.
 2020-02-05 17:17:22 +03:00
Roman Khimov
02a5e036fc vm: deduplicate checkMultisigPar 
Make its logic more clear.
 2020-02-05 17:12:23 +03:00
Evgenii Stratonikov
d93d060010 vm: parallelize CHECKMULTISIG 2020-02-05 17:12:18 +03:00
Evgenii Stratonikov
f15ceff592 vm: make IntToBytes, BytesToInt public 
VM serialization format should be able to be reused.
 2020-01-28 16:39:19 +03:00
Evgenii Stratonikov
7a6d6f43ce vm: get rid of recursive (*VM).execute calls 
Recursive execute() calls can affect gas calculation.
This commit makes execute() be called only for real opcodes
and moves duplicate logic for CALL/JMP into a separate function.
 2020-01-22 14:31:57 +03:00
Evgenii Stratonikov
d72d978a19 vm: abstract out GetInterop() function 2020-01-22 14:04:40 +03:00
Evgenii Stratonikov
c22d09adad vm: set GAS limit 
Make it possible to set maximum amount of GAS which can be spent
during execution.
 2020-01-22 14:04:40 +03:00
Evgenii Stratonikov
0662a7e3c2 vm: calculate GAS spent during execution 
If getPrice callback is provided, accumulate spent GAS.
 2020-01-22 14:04:40 +03:00
Evgenii Stratonikov
f0083b94c5 vm: use new big.Int (de-)serialization routines 
Also fix a test with CAT.
 2020-01-17 17:37:50 +03:00
Evgenii Stratonikov
f26bdae2c5 vm: implement proper big.Int to []byte conversions 
Big.Int Bytes()/SetBytes() methods are not symmetric.
Moreover we need to mimic C# node behavior:
- if a positive number has MSB set, 0x00 byte should be appended
  to distinguish positive number from negatives
- negative numbers should serialize as two's-complement
 2020-01-17 17:37:50 +03:00
Roman Khimov
46b82b4fb5 keys: don't return error from PrivateKey.Sign 
As it can't ever happen.
 2020-01-17 17:00:30 +03:00
Evgenii Stratonikov
7b5c47e7f5 vm: add NewMapIterator() 2019-12-26 14:34:15 +03:00
Evgenii Stratonikov
5bc32b523a vm: implement Neo.Iterator.* interops 2019-12-24 10:21:47 +03:00
Evgenii Stratonikov
3ff7fd5262 vm: implement Neo.Enumerator.* interops 2019-12-24 10:21:46 +03:00
Roman Khimov
cc16dac0b4 vm: optimize script loading a bit 
Preseed the scriptHash value when we already know it. Eliminates this time
waste from the pprof graph, but doesn't really change anything in the 1.4M ->
1.5M 100K mainnet blocks import test.
 2019-12-23 18:02:39 +03:00
Roman Khimov
094c8474b7 compiler: move tests from vm/tests 
These don't belong to VM as they compile some Go code and run it in a VM. One
may call them integration tests, but I prefer to attribute them to
compiler. Moving these tests into pkg/compiler also allows to properly count
the compiler coverage they add:

-ok     github.com/CityOfZion/neo-go/pkg/compiler       (cached)        coverage: 69.7% of statements
+ok     github.com/CityOfZion/neo-go/pkg/compiler       (cached)        coverage: 84.2% of statements

This change also fixes `contant` typo and removes fake packages exposed to the
public by moving foo/bar/foobar into the testdata directory.
 2019-12-23 17:05:34 +03:00
Roman Khimov
33958be45f
Merge pull request #559 from nspcc-dev/feature/stack_limits 
vm: don't refcount simple items

Improves 1.4M to 1.5M 100K mainnet block import test by ~4%.
 2019-12-23 12:44:01 +03:00
Roman Khimov
79323cc10b
Merge pull request #567 from nspcc-dev/feature/codegen_add_mod 
compiler: Add Mod token, closes #563
 2019-12-19 15:32:18 +03:00
Vsevolod Brekelov
1458116567 vm: add tests 2019-12-19 15:23:14 +03:00
Roman Khimov
26ea4799c3
Merge pull request #565 from nspcc-dev/hashed-interop-callback 
vm/core: add ID support for SYSCALL, redo interop registration
 2019-12-19 15:02:53 +03:00
Roman Khimov
5f3a220b48
Merge pull request #566 from nspcc-dev/feature/varindex 
compiler: implement assignment to a variable index
 2019-12-19 13:40:32 +03:00
Roman Khimov
a7457d08a1 vm/core: add ID support for SYSCALL, redo interop registration 
This solves two problems:
 * adds support for shortened SYSCALL form that uses IDs (similar to #434, but
   for NEO 2.0, supporting both forms), which is important for compatibility
   with C# node and mainnet chain that uses it from some height
 * reworks interop plugging to use callbacks rather than appending to the map,
   these map mangling functions are clearly visible in the VM profiling
   statistics and we want spawning a VM to be fast, so it makes sense
   optimizing it. This change moves most of the work to the init() phase
   making VM setup cheaper.

Caveats:
 * InteropNameToID accepts `[]byte` because that's the thing we have in
   SYSCALL processing and that's the most often usecase for it, it leads to
   some conversions in other places but that's acceptable because those are
   either tests or init()
 * three getInterop functions are: `getDefaultVMInterop`, `getSystemInterop`
   and `getNeoInterop`

Our 100K (1.4M->1.5M) block import time improves by ~4% with this change.
 2019-12-19 13:35:42 +03:00
Evgenii Stratonikov
891a878af1 compiler: implement assignment to a variable index 
Fixes #564.
 2019-12-19 13:14:17 +03:00
Evgenii Stratonikov
f957af35d4 vm: do not store items of scalar types in map 
As they do not contain any other items,
they can be only accounted via total size.
 2019-12-18 11:12:19 +03:00
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