TrueCloudLab/neo-go
8
0
Fork 0
mirror of https://github.com/nspcc-dev/neo-go.git synced 2024-12-11 15:30:07 +00:00
Code Issues Projects Releases Packages Wiki Activity
7983 commits 42 branches 138 tags 45 MiB
Commit graph

820 commits

Author SHA1 Message Date
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
Evgenii Stratonikov
057e1c6e3c compiler: provide filename to Compile() 2020-08-11 11:10:45 +03:00
Evgenii Stratonikov
bf01599430 vm: check return value on context unload 
When calling external contracts we expect exactly 1 value to be on
stack. For methods returning nothing, `Null` value is pushed, otherwise
it is an error.`
 2020-08-10 11:52:33 +03:00
Evgenii Stratonikov
b65369e111 emit: remove unused functions 2020-08-10 11:14:48 +03:00
Roman Khimov
f5131491b7
Merge pull request #1271 from nspcc-dev/core/call_from_native 
core: contractCall from native contracts
 2020-08-07 21:24:50 +03:00
Anna Shaleva
c87e2262c3 core: remove ScriptHashGetter from interop context 
We have VM inside the context, so don't need ScriptHashGetter anymore.
 2020-08-07 20:31:20 +03:00
Roman Khimov
c3c88a57cd
Merge pull request #1281 from nspcc-dev/drop-go-1.12-and-fix-some-things 
Drop go 1.12 and fix some things
 2020-08-07 13:34:54 +03:00
Roman Khimov
0e2784cd2c always wrap errors when creating new ones with fmt.Errorf() 
It doesn't really change anything in most of the cases, but it's a useful
habit anyway.

Fix #350.
 2020-08-07 12:21:52 +03:00
Roman Khimov
5ef08f60ae remove github.com/pkg/errors from dependencies 
It's not needed any more with Go 1.13 as we have wrapping/unwrapping in base
packages. All errors.Wrap calls are replaced with fmt.Errorf, some strings are
improved along the way.
 2020-08-07 12:21:52 +03:00
Evgenii Stratonikov
a3f419f8df emit: allow to emit Null 2020-08-06 20:39:13 +03:00
Roman Khimov
f5fbef165a
Merge pull request #1259 from nspcc-dev/fix/notifications 
Disallow changing notifications
 2020-08-05 19:50:45 +03:00
Evgenii Stratonikov
b8cc33d0b2 stackitem: implement DeepCopy 2020-08-05 11:19:41 +03:00
Evgenii Stratonikov
7e3813a88f cli: use TAB as delimiter in vm parse 
Make it simpler to use result in pipes:

neo-go vm parse 123 | rg "Integer to Hex" | cut -f1- | sed -r 's/\t//g'
 2020-08-05 09:40:50 +03:00
Evgenii Stratonikov
227c6a2caa cli: allow to use vm parse directly 2020-08-05 09:40:50 +03:00
Roman Khimov
fa5ff8dd95
Merge pull request #1242 from nspcc-dev/fix/json 
Implement lossless stackitem to json conversion
 2020-08-04 12:59:47 +03:00
Evgenii Stratonikov
54590062e6 vm: use raw stack items when printing stack 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-31 16:07:16 +03:00
Evgenii Stratonikov
7b4acd5a7f vm: allow to convert stack to a slice 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-31 16:07:16 +03:00
Evgenii Stratonikov
9d6ce4bdcc stackitem: implement unmarshaling from JSON with types 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-31 16:07:16 +03:00
Evgenii Stratonikov
ee5ff40b17 stackitem: allow to convert type from string 
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-31 16:07:16 +03:00
Evgenii Stratonikov
c16bb466a0 stackitem: implement marshaling to JSON with types 
There are 2 kinds of JSON marshaling:
1. Lossy raw marshaling, when type information is lost and
    map keys are expected to be valid utf-8 strings.
2. Almost lossless marshaling, which can handle any non-recursive item.
    Interop value preserves only type.

This commit implements the second.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-31 16:07:16 +03:00
Evgenii Stratonikov
b53f0257f5 stackitem: change ByteArray type to ByteString 
Adjust only string representation.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-31 16:07:16 +03:00
Evgenii Stratonikov
5500195d58 stackitem: ensure map keys are a valid UTF-8 2020-07-30 12:37:32 +03:00
Evgenii Stratonikov
f40aba4cd0 vm: convert items to UTF-8 strings 
Add `stackitem.ToString` for seamless string conversion.
 2020-07-30 12:37:31 +03:00
Evgenii Stratonikov
51ae12e4fd *: move syscall handling out of VM 
Remove interop-related structures from the `vm` package.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
 2020-07-29 13:41:08 +03:00
fyrchik
b187dfe3ce
Merge pull request #1236 from nspcc-dev/rpc/getrawmempool 
rpc: update `getrawmempool` and `getrawtransaction` RPC-calls
 2020-07-29 10:18:51 +03:00
Anna Shaleva
70ef733ce7 core, vm: store VMState as byte instead of string 
Part of #1183
 2020-07-29 10:14:08 +03:00
fyrchik
5cf4481331
Merge pull request #1228 from nspcc-dev/fix/contractcall 
Adjust `System.Contract.Call.*` interops
 2020-07-28 13:18:24 +03:00
Evgenii Stratonikov
5fe8095cee vmcli: implement parse command 
Implement parse command for converting arbitrary values to other
formats. It supports Integer, String, Hex, Base64 and
Address representations.
 2020-07-27 13:05:37 +03:00
Evgenii Stratonikov
b3e166aeff vmcli: remove unused method 2020-07-27 13:04:52 +03:00
Evgenii Stratonikov
466af55dea vm: isolate stack in LoadScript 
When calling contract it must be provided with a new stack containing
only it's arguments. The result is then copied back on RET.

Fix #1220.
 2020-07-27 13:00:35 +03:00
Evgenii Stratonikov
13b9eda08d vm: allow to call VM methods from outside 
Abstract out (*VM).Call method and use in in CALL* opcodes.
 2020-07-27 13:00:35 +03:00
Evgenii Stratonikov
6ecd1ae437 vm: allow to initialize static slot in method 2020-07-27 13:00:35 +03:00
Evgenii Stratonikov
d2ddf7b7cb *: support invoking methods by offset 
Allow to invoke methods by offset:
1. Every invoked contract must have manifest.
2. Check arguments count on invocation.
3. Change AppCall to a regular syscall.
4. Add test suite for `System.Contract.Call`.
 2020-07-27 13:00:35 +03:00
Evgenii Stratonikov
299491080a vm: simplify interop id in json tests 2020-07-24 10:44:02 +03:00
Evgenii Stratonikov
68ad620af0 vm: update json tests to master 2020-07-24 10:44:02 +03:00
Evgenii Stratonikov
797324cb04 vm: support exceptions 
Implement 3 new instructions: TRY,ENDTRY,ENDFINALLY.
1. TRY marks the start of the block where exceptions are catched.
    It has 2 arguments which are relative offsets of exception handler
    and the end of the whole try/catch construction.
2. ENDTRY denotes either end of try or catch block.
3. ENDFINALLY denotes end of finally block which is executed
    irregardless of whether an exception has occured.
 2020-07-24 10:41:41 +03:00
Evgenii Stratonikov
c0d7b9d234 vm: clear references on context unload 
Remove argument and local references from the reference counter when
returning from function.
 2020-07-24 10:41:40 +03:00
Evgenii Stratonikov
aec9111961 vm: replace jumpIf with jump 
`jumpIf` is used only once with non-constant condition.
 2020-07-24 10:36:51 +03:00
Roman Khimov
a45c160f10
Merge pull request #1225 from nspcc-dev/fix/equal 
vm: make EQUAL type strict
 2020-07-23 23:42:22 +03:00
Roman Khimov
2800179ce0
Merge pull request #1226 from nspcc-dev/fix/pusha 
vm: make offset in PUSHA relative
 2020-07-23 23:40:21 +03:00
Anna Shaleva
8fde41001e core, vm: remove allowed triggers from syscalls 
Closes #1205.
 2020-07-23 20:44:39 +03:00
Evgenii Stratonikov
b8843a2dfa vm: make offset in PUSHA relative 
Follow neo-project/neo-vm#317 .
 2020-07-23 13:07:30 +03:00
Evgenii Stratonikov
9252ef65bb vm: make EQUAL type strict 
Do not perform type conversions when comparing elements.
 2020-07-23 13:01:43 +03:00
Roman Khimov
18dcc16553
Merge pull request #1222 from nspcc-dev/fix/rvcount 
Remove return value count
 2020-07-23 10:34:34 +03:00
Evgenii Stratonikov
58a594e3d4 vm: remove rvcount 
It isn't used anymore.
 2020-07-23 10:29:05 +03:00
Anna Shaleva
c9ef7425ac core: adjust System.Iterator.Create interop 
Closes #1201.

It should be able to iterate over primitive byte-array-like types also.
 2020-07-23 07:51:55 +03:00
Anna Shaleva
459ac34839 core: adjust System.Enumerator.Create interop 
Part of #1201.

It should be able to create enumerator from primitive byte-array-like
stack items too.
 2020-07-23 07:51:24 +03:00
Evgenii Stratonikov
261ff3c655 vm: remove alt.stack 
It is no longer present in NEO3.
 2020-07-22 13:20:31 +03:00
Evgenii Stratonikov
3d7fa9de93 *: make Notify interop accept event name 2020-07-20 13:33:32 +03:00
Anna Shaleva
a3e306ff78 core: implement Secp256k1 Verify and CheckMultisig interops 
Closes #918.
 2020-07-14 16:21:34 +03:00
Anna Shaleva
5326fc587a core: rename Neo.Crypto.CheckMultisig to Neo.Crypto.CheckMultisigWithECDsaSecp256r1 
Part of #918
 2020-07-14 16:19:12 +03:00
Anna Shaleva
17233e1d8e core: rename Neo.Crypto.Verify to Neo.Crypto.VerifyWithECDsaSecp256r1 
Part of #918
 2020-07-14 16:19:12 +03:00
Roman Khimov
db027ad9c5 vm: zero GAS means no GAS, use fee data to properly limit execution 
We were accepting transactions with zero system fee, but we shouldn't do
that. Also, transaction's verification execution has to be limited by network
fee.
 2020-07-14 08:37:29 +03:00
Roman Khimov
15c6cc932d vm: drop checkedhash, it's an unused NeoVM 2 remnant 2020-07-09 15:05:14 +03:00
Roman Khimov
1bb26dcdc1 vm: fix INITSSLOT, it's context-wide, not VM-wide 
It's tied to the current contract, not to VM.
 2020-07-09 15:00:49 +03:00
Anna Shaleva
29f1e646ed vm: fix stackitem serialisation 
We're able to serialise Buffer stackitem, but can not deserealise it
which leads to errors. Fixed.
 2020-07-06 15:04:19 +03:00
Roman Khimov
08c516014f
Merge pull request #1132 from nspcc-dev/neo3/rpc/fixed8_marshalling 
*: switch from Fixed8 to int64
 2020-06-29 21:44:40 +03:00
Anna Shaleva
73b630db9b *: switch from fixed8 to int64 
Follow C# implementation, we have to marshall JSON Fixed8 fields without
taking into account decimals.
 2020-06-29 21:39:27 +03:00
Roman Khimov
372dd71708
Merge pull request #1108 from nspcc-dev/neo3/compiler/nef 
compiler: support *.nef and *.manifest.json generation
 2020-06-29 20:55:47 +03:00
Anna Shaleva
1c1818d97e vm: fix typoes in cli package 2020-06-29 09:15:29 +03:00
Anna Shaleva
b387deaa05 vm: switch from .avm to .nef 2020-06-29 09:15:29 +03:00
Evgenii Stratonikov
bdaffe75cb vm: extend PrintOps() with INITSSLOT & INITSLOT 2020-06-26 19:35:03 +03:00
Evgenii Stratonikov
82417499d7 vm: beautify PrintOps() output for JMP* instructions 2020-06-26 19:34:58 +03:00
Evgenii Stratonikov
709f656bcf vm: remove unused parameter from getJumpOffset 2020-06-26 19:17:17 +03:00
Roman Khimov
32b0936499 vm/cli: improve loadhex example 
It was using Neo 2 opcodes.
 2020-06-25 18:33:46 +03:00
Roman Khimov
003daf37cf vm/cli: add parameter checks for load* commands 
Prevent failing like this:

NEO-GO-VM > loadhex
panic: runtime error: index out of range

...
 2020-06-25 18:33:46 +03:00
Roman Khimov
5d63ff100e vm/cli: add support for loadbase64 command 
Neo3 outputs scripts in base64 for transactions and contracts, to quickly
parse them add a special `loadbase64` command.
 2020-06-25 18:33:46 +03:00
Roman Khimov
a77357227a vm: fix caller's script hash returned from VM 
Regular CALLs don't update it, only Contract.Call does. Fixes the following
mismatch on preview2 testnet:

file BlockStorage_100000/dump-block-49000.json: block 48644, changes number mismatch: 6 vs 4
 2020-06-24 10:22:21 +03:00
Evgenii Stratonikov
47f53e612e vm: fix Log and Notify default interop prices 2020-06-19 12:58:33 +03:00
Evgenii Stratonikov
a980cac0b3 stackitem: support Null item (de-)serialization 
It's binary representation contains just type (AnyT).
 2020-06-19 11:38:56 +03:00
Evgenii Stratonikov
a7d4fff897 vm: make (*VM).GasLimit public 
VM is inherently single-threaded and replacing setter/getter methods
with public field simplifies code a bit.
 2020-06-16 15:13:20 +03:00
Evgenii Stratonikov
d836233352 stackitem: allow to (de-)serialize items to JSON 
This commit implements behavior identical to that of C# `System.Json.*` interops.
 2020-06-16 11:34:01 +03:00
Evgenii Stratonikov
f2f01a08c9 vm: move MaxArraySize and MaxItemSize to stackitem package 2020-06-16 11:32:16 +03:00
Evgenii Stratonikov
aae312d408 core,vm: adjust prices for iterator/enumerator syscalls 
Closes #1027.
 2020-06-16 11:05:26 +03:00
Evgenii Stratonikov
18066143bd core,vm: adjust binary (de-)serialization syscalls 
Related #1027.

1. Move System.Runtime.(De)serialize to System.Binary.*
2. Rename compiler stubs.
3. Adjust opcode prices.
 2020-06-16 11:00:38 +03:00
Evgenii Stratonikov
4dfce07d11 vm: provide trigger upon VM creation 2020-06-11 13:16:07 +03:00
Evgenii Stratonikov
0dd00a49f5 core: specify require call flags in interop description 
Related #1026, #1027, #1028, #1031.
 2020-06-11 13:16:07 +03:00
Evgenii Stratonikov
bda94c74c3 vm: check calling flags on syscall invocation 2020-06-11 13:16:07 +03:00
Evgenii Stratonikov
55ab7535be core: optimize contractCallEx 
Provide script hash upon script load.
 2020-06-11 13:06:10 +03:00
Evgenii Stratonikov
5514b3f52f smartcontract,vm: remove DynamicInvoke feature 
It doesn't exist in NEO3.
 2020-06-11 10:45:25 +03:00
Evgenii Stratonikov
7256efd1ed vm: implement (*VM).AddGas 
Calculating interop prices can be tricky. It is more convenitent to burn
gas inside interops where necessary parameters are popped.
 2020-06-11 10:45:25 +03:00
Evgenii Stratonikov
0472a0b0b1 core: move Neo.Runtime/Enumerator/Iterator.* interops to System.* 2020-06-10 12:13:35 +03:00
Anna Shaleva
d0ccf456c4 vm: replace hardcoded Bool type constant with BooleanT type 
There's no import cycle problem anymore, so we can do this. Part of #912
 2020-06-08 13:27:13 +03:00
Anna Shaleva
7ca2807875 vm/encoding: move bigint from vm to encoding package 2020-06-08 13:27:13 +03:00
Anna Shaleva
783f5ecb01 vm: move StackItem to a separate package 
closes #912
 2020-06-08 13:27:08 +03:00
Roman Khimov
35b30ccfdf core: drop OLDPUSH1, it's no longer needed 
Fixes #927.
 2020-06-05 19:20:16 +03:00
Evgenii Stratonikov
d26758dd31 vm/tests: restore NEO3 JSON tests 
The only skipped RN are ROT.json (see #927) and MEMCPY.json (not a valid
JSON).
 2020-05-22 14:17:15 +03:00
Evgenii Stratonikov
673e6c84d1 vm/tests: preserve order when decoding Map item. 
When using Go's `map` for decoding, order can change from time to time,
while we may want to check it too. Use custom decoder for saving items
in order.
 2020-05-22 14:17:15 +03:00
Evgenii Stratonikov
9dca2288ba vm: make LEFT fail if count is too big 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
22791272bf vm/tests: compare static slot contents in JSON tests 
Make use of "staticFields" test field to compare vm static slots.
Also remove altStack because it is doesn't exist.
 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
16bf72f9cc vm/tests: do not load empty script 
In case we load a zero-length script, VM should end in HALT state.
https://github.com/neo-project/neo-vm/blob/master/tests/neo-vm.Tests/Tests/Others/OtherCases.json#L22
 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
86c4f1abc5 vm: do not use State as a mask 
In NEO2 state could be used as a mask, but now it contains only a single
value.
 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
063c29636b vm: fail if NEWSTRUCT/NEWARRAY argument is not an integer 
NEO3 VM does not support creating new Array from a Struct.
For this purpose CONVERT opcode is used.
 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
1a0290edc6 vm: copy slice when converting between Array<->Struct 
Related #437. Becase in NEO3 NEWSTRUCT/NEWARRAY accept only an integer
change tests too.
 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
781def735d vm: use Null item as a default value for Array/Struct elements 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
f4fa712440 vm: make PUSH0 emit Integer 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
820b050b18 vm/tests: make test interop push non-nil InteropItem 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
a44acd25bb vm/tests: restore JSON tests parsing 
Make sure we support new test format. Tests itself will be restored
later.
 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
61b1722745 opcode: swap ROT and OLDPUSH1 
Because of how stringer generates String() method, the first of them
will be used as the result.
 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
646c247b31 vm/tests: unmarshal Map keys properly in JSON tests 2020-05-22 14:16:31 +03:00
Evgenii Stratonikov
128a99dec2 vm/tests: unmarshal action in JSON tests properly 2020-05-22 13:36:11 +03:00
Evgenii Stratonikov
7ddb23abe3 vm/tests: unmarshal stack items in JSON tests properly 
New item types were added in NEO3 and they can be capitalized or not.
 2020-05-22 13:36:11 +03:00
Evgenii Stratonikov
e71cc04c70 vm/tests: unmarshal VM state in JSON tests properly 2020-05-22 13:36:11 +03:00
Evgenii Stratonikov
0c7b163280 vm/tests: unmarshal script in JSON tests properly 
Script is no specified via stringified opcodes and their arguments.
 2020-05-22 13:36:11 +03:00
Evgenii Stratonikov
1100f629df opcode: implement FromString() 2020-05-22 13:36:11 +03:00
Evgenii Stratonikov
e53055a560 opcode: use underscored names in String() 2020-05-22 13:36:11 +03:00
Evgenii Stratonikov
3917b4b4e4 vm: update stack size in SETITEM properly 2020-05-21 18:00:51 +03:00
Anna Shaleva
7acf5b2841 core: add SystemFee and NetworkFee to transaction 
closes #831
 2020-05-20 23:26:48 +03:00
Evgenii Stratonikov
98c508d361 vm: implement MEMCPY opcode 
MEMCPY copies byte-slice to a destination buffer.
 2020-05-20 17:45:56 +03:00
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
Roman Khimov
acb7ef7fbd vm: support uint8 and uint64 in makeStackItem() 
Convenience to avoid casts, uint64 is also a bit special in that it can't be
converted to int64 without data loss.
 2019-10-15 12:56:25 +03:00
Roman Khimov
782ca64d92 vm: accept uint16 in makeStackItem() 2019-10-15 12:56:25 +03:00
Vsevolod Brekelov
5109b2e3e7 vm: fix cli comment 2019-10-14 18:38:05 +03:00
Vsevolod Brekelov
591d5eafbe vm: add stepInto,stepOver,stepOut 
Original C# vm debugger behavior
 2019-10-14 18:37:11 +03:00
Roman Khimov
dca332f333 vm: use new Context.Next() to properly dump programs 
Fix #295, deduplicate code and add `inspect` parameter to the vm command to
dump AVMs (`contract inspect` works with Go code).
 2019-10-04 16:13:39 +03:00
Roman Khimov
53a3b18652 vm: completely separate instruction read and execution phases 
Make Context.Next() return both opcode and instruction parameter if any. This
simplifies some code and needed to deal with #295.
 2019-10-04 16:13:39 +03:00
Roman Khimov
1bf232ad50 vm: introduce TryBool() for Element and use it in VerifyWitnesses 
Script can return non-bool results that can still be converted to bool
according to the usual VM rules. Unfortunately Bool() panics if this
conversion fails which is OK for things done in vm.execute(), but certainly
not for VerifyWitnesses(), thus there is a need for TryBool() that will just
return an error in this case.
 2019-10-04 16:13:39 +03:00
Roman Khimov
8441b31b4b vm: accept uint32 in makeStackItem() 
Interop services routinely push such things (block index, blockchain height)
onto the stack.
 2019-10-04 16:13:39 +03:00
Roman Khimov
d62a367900 vm: add Value() method to Element 
It gives access to the internal value's Value() which is essential for interop
functions that need to get something from InteropItems. And it also simplifies
some already existing code along the way.
 2019-10-04 16:13:39 +03:00
Roman Khimov
0c963875af vm: check for fault flag first in Run() 
Switch cases are evaluated sequentially and the fault case is top-priority to
handle.
 2019-10-04 16:13:39 +03:00
Roman Khimov
705c7f106f vm: don't panic if there is no result in PopResult() 
This function is intended to be ran outside of the execute's panic recovery
mechanism, so it shouldn't panic if there is no result.
 2019-10-04 16:13:39 +03:00
Roman Khimov
a357d99624 vm: introduce MaxArraySize constant 
This is both for #373 and for interop functions that have to check some
inputs.
 2019-10-04 16:13:39 +03:00
Roman Khimov
cfa0c13322 vm: add InteropItem type for interop data 
This is an opaque data item that is to be used by the interop functions.
 2019-10-04 16:13:39 +03:00
Roman Khimov
da2156f955 vm: add batched RegisterInteropFuncs 2019-10-04 16:13:39 +03:00
Roman Khimov
26e3b6abbe vm: extend interops to contain price 
The same way C# node does.
 2019-10-04 16:13:39 +03:00
Roman Khimov
ceca9cdb67 core/vm: implement contract storage and script retrieval 
Fixes script invocations via the APPCALL instruction. Adjust contract state
field types accordingly.
 2019-10-04 16:13:39 +03:00
Roman Khimov
c3591d8897 vm: fix CHECKMULTISIG to comply with NEO VM implementation 
Testing with testnet quickly revealed that our code has an issue when the key
count doesn't equal signature count, fix it and add some comments.
 2019-10-01 13:41:26 +03:00
Evgenii Stratonikov
c7c4291774 vm: simplify APPEND implementation a bit 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
13d7770c68 vm: support Map in ARRAYSIZE 
Also make logic the same as in reference implementation
and add tests.
 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
c66f493017 vm: compare Map by reference in EQUAL 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
c0be2b2a99 vm: support Map in REMOVE 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
8b6bddca3c vm: support Map in PICKITEM and SETITEM 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
d7bb50c609 vm: implement VALUES opcode 2019-09-25 17:53:36 +03:00
Evgenii Stratonikov
2da64267b0 vm: implement KEYS opcode 2019-09-25 17:53:34 +03:00
Evgenii Stratonikov
0fb4bb05cf vm: implement HASKEY opcode 2019-09-25 12:08:41 +03:00
Evgenii Stratonikov
df18da0ac9 vm: implement NEWMAP opcode 2019-09-24 17:06:17 +03:00
Roman Khimov
ca9c9be71f vm: add CHECKSIG/VERIFY/CHECKMULTISIG implementations 
Fix #269.
 2019-09-24 13:01:54 +03:00
Roman Khimov
3bbeb2476e vm: introduce HasFailed() method and use it where appropriate 
It's gonna be used by external modules.
 2019-09-23 20:19:07 +03:00
Evgenii Stratonikov
3c53beca82 vm: restrict SHL/SHR arguments to -256..256 
Also unify SHL/SHR implementation.
 2019-09-23 15:13:10 +03:00
Evgenii Stratonikov
4a8be486f0 vm: do not pop items in OVER 2019-09-23 14:54:59 +03:00
Evgenii Stratonikov
7cd69ea8e2 vm: truncate length in SUBSTR 
Also fail on first error, without changing the stack.
 2019-09-23 14:54:59 +03:00
Evgenii Stratonikov
a88a8e13fc vm: compare Array by reference in EQUAL 2019-09-23 13:25:59 +03:00
Evgenii Stratonikov
99f1d761ca vm: clone Struct on APPEND 2019-09-23 13:25:59 +03:00
Roman Khimov
42df4c2f39 vm: update and move README, refs. #339 2019-09-18 12:10:12 +03:00
Roman Khimov
778d29f543 compiler: update and move README to the docs folder 
Refs. #339.
 2019-09-17 19:09:02 +03:00
Evgenii Stratonikov
d2ccc3b017 vm: make REVERSE consume an item from stack 2019-09-16 15:50:51 +03:00
Evgenii Stratonikov
fd264cb06f vm: make REVERSE work with structs 
Also add more tests.
Extend `Array` method of `Element` to work with `StructItem`.
 2019-09-16 15:50:51 +03:00
Evgenii Stratonikov
f0426ac2d5 vm: do nothing if SHL/SHR by 0 2019-09-16 15:50:51 +03:00
Evgenii Stratonikov
9eca5ee317 vm: convert SIZE argument to bytearray 2019-09-16 15:50:51 +03:00
Evgenii Stratonikov
9780889239 vm: make NEWARRAY/NEWSTRUCT accept bytearray 2019-09-16 15:50:51 +03:00
Evgenii Stratonikov
09e197eaf3 vm: make PUSH0 create empty bytearray 
Also make tests expect []byte{} instead of 0.
 2019-09-16 15:50:51 +03:00
Evgenii Stratonikov
66501f9ef9 vm: make REMOVE consume array from stack 2019-09-16 15:50:14 +03:00
Evgenii Stratonikov
71cfd14b92 vm: create an array of false items in NEWARRAY/NEWSTRUCT 2019-09-16 15:24:58 +03:00
Evgenii Stratonikov
bafdb916a0 vm: make PICKITEM accept bytearrays 2019-09-16 15:24:58 +03:00
Evgenii Stratonikov
1881adabb9 vm: fail if NIP has not enough arguments 2019-09-16 15:24:58 +03:00
Evgenii Stratonikov
6e4014547d vm: fail if DROP has no argument 2019-09-16 15:24:58 +03:00
Evgenii Stratonikov
729b7a0b24 vm: fail if ROT has not enough arguments 2019-09-16 15:24:58 +03:00
Evgenii Stratonikov
cf7fbb80ba vm: fail if EQUAL has not enough arguments 2019-09-16 15:24:58 +03:00
Evgenii Stratonikov
d257044298 vm: fail if XTUCK argument is 0 2019-09-16 15:24:58 +03:00
Evgenii Stratonikov
56ec097d76 vm: fix codegen for APPEND 2019-09-13 11:24:21 +03:00
Evgenii Stratonikov
68c6c93980 vm: do not allow APPEND to operate on bytearray 2019-09-11 17:17:37 +03:00
Evgenii Stratonikov
723dcc6e25 vm: make APPEND push no value on stack 2019-09-11 17:17:34 +03:00
Roman Khimov
8311bda355 vm: harden LEFT and RIGHT implementations against negative indexes 2019-09-11 14:51:04 +03:00
Roman Khimov
17f3a21e27 vm: harden SUBSTR implementation against bad index/offset values 
The upper index bound for slices is capacity, not length. Check for negative
values also. Fixes #387.
 2019-09-11 14:37:41 +03:00
Roman Khimov
fc1075bf75 vm: protect PUSHDATA from short reads 
Same thing done in a2a8981979 for PUSHBYTES,
failing to read the amount of bytes specified should lead to FAULT. Also
makes readUint16() and readUint32() panic as this is the behavior we want in
these cases. Add some tests along the way.
 2019-09-11 12:35:37 +03:00
Roman Khimov
392a4c4f39 vm/cli: add some convenience heuristic to ease 'run' use 2019-09-10 23:31:06 +03:00
Roman Khimov
c5911c2f10 vm/cli: add support for bool type as 'run' parameter 2019-09-10 23:31:06 +03:00
Roman Khimov
982bdcd704 vm/cli: make operation mandatory if anything added to run 
Matches neo-cli behavior.
 2019-09-10 23:31:06 +03:00
Roman Khimov
5bd666b786 vm: return NOP as current instruction for just loaded VM 
Before:
NEO-GO-VM > loadgo h.go
READY: loaded 16 instructions
NEO-GO-VM > ip
instruction pointer at -1 (PUSH0)

After:
NEO-GO-VM > loadgo h.go
READY: loaded 16 instructions
NEO-GO-VM > ip
instruction pointer at -1 (NOP)

I think NOP is a little less scary.
 2019-09-10 23:31:06 +03:00
Roman Khimov
e872b6b421 vm/cli: redo the whole thing using abiosoft/ishell 
Adds history support, better editing and way better help system. Expand on
some helps while at it.
 2019-09-10 23:31:06 +03:00
Evgenii Stratonikov
31f4c7486b vm: add tests for CAT 2019-09-10 17:33:42 +03:00
Evgenii Stratonikov
1289d0f7e9 vm: add tests for NOT 2019-09-10 17:29:10 +03:00
Evgenii Stratonikov
f2393e5efc vm: implement * -> Boolean conversion 2019-09-10 17:29:10 +03:00
Evgenii Stratonikov
7e14c5a274 vm: implement * -> ByteArray conversion 2019-09-10 17:29:07 +03:00
Evgenii Stratonikov
9b10b4c4d8 vm: add tests for SIGN 2019-09-10 15:08:42 +03:00
Evgenii Stratonikov
52b0d661e0 vm: implement BigInt -> Boolean conversion 2019-09-10 14:19:36 +03:00
Evgenii
0b58ed4a22 vm: do not fault on LEFT with big index 
Fixes #378.
 2019-09-09 17:29:31 +03:00
Roman Khimov
a039ae6cdb
Merge pull request #374 from nspcc-dev/makefile-and-gofmt 
Makefile convenience targets and gofmt
 2019-09-09 15:05:12 +03:00
Roman Khimov
a2a8981979 vm: fix not failing PUSHBYTES* on short read 
Add some tests also. Fixes #361.
 2019-09-09 12:09:05 +03:00
Roman Khimov
fabd11699a *: gofmt -s 
Appy gofmt for all the source tree.
 2019-09-09 12:02:24 +03:00
Roman Khimov
450063de7d
Merge pull request #362 from nspcc-dev/add-missing-opcodes-into-the-list 
Add missing opcodes into the list
 2019-09-09 11:24:39 +03:00
Roman Khimov
7b0c2781d2 vm: expand instruction list with commands from current VM spec 
Current NEO documentation lists them:
https://docs.neo.org/docs/en-us/tooldev/advanced/neo_vm.html

CALL_* instructions were left out because of conflict with golint (but they're
removed in NEO 3.0 anyway, so wasting time on them makes no sense).

Update autogenerated instruction_string.go accordingly.
 2019-09-08 20:46:35 +03:00
Evgenii
bcc8234155 vm: implement Array <-> Struct conversion 
Reference VM implementation supports convertation from
Struct to Array via NEWARRAY and vice versa.
https://github.com/neo-project/neo-vm/pull/91
 2019-09-08 13:40:21 +03:00
Roman Khimov
7e8dc9ad66 vm: uncomment TestForLoopBigIter 
It works just fine.
 2019-09-07 10:10:11 +03:00
Roman Khimov
1c7d203993 compiler: drop TODO comment, #294 was fixed a while ago 2019-09-07 10:09:42 +03:00
Roman Khimov
8169edf04c vm: expand PUSHBYTES instructions 
Allows to reliably use String() on any of those. Update autogenerated
instruction_string.go accordingly.
 2019-09-06 19:14:47 +03:00
Roman Khimov
aefe572df3 vm: implement UNPACK, REVERSE, REMOVE opcodes 
Also expand makeStackItem() to accept slices of int for testing
convenience. Fixes #195.
 2019-09-06 19:00:34 +03:00
Roman Khimov
5bd50c7bcd vm: add some tests for PACK instruction 2019-09-06 13:15:30 +03:00
Roman Khimov
b3ed3d24ee vm: implement CAT, SUBSTR, LEFT and RIGHT 
String instruction set.
 2019-09-06 12:41:27 +03:00
Roman Khimov
3f40334979 vm: add generic stub for all unimplemented instructions 2019-09-05 17:35:30 +03:00
Roman Khimov
59de72f446 vm: implement INVERT instruction 2019-09-05 17:35:30 +03:00
Roman Khimov
b494e094c0 vm: add XDROP implementation 2019-09-05 17:35:30 +03:00
Roman Khimov
974f5db6bc vm: add a TUCK implementation with tests 
Also fix stack's InsertAt for the edge case of inserting into a position that
currently is empty (the first good TUCK test illustrates this).
 2019-09-05 17:35:30 +03:00