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380 commits

Author SHA1 Message Date
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