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280 commits

Author SHA1 Message Date
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