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176 commits

Author SHA1 Message Date
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
Roman Khimov
eb224aeebe vm: add some checks for OVER and PICK, add OVER tests 
These actually behaved correctly because of deferred sigsegv recover, but I
think it would be nice to print something more meaningful for users.
 2019-09-05 17:35:30 +03:00
Roman Khimov
85831e3e92 vm: fix XTUCK implementation, add tests 
The code that we have actually implements XTUCK and not TUCK. And it's a bit
broken, so fix it and add some tests. The most interesting one (that required
to touch stack code) is the one when we have 1 element on the stack and are
trying to tell XTUCK to push 2 elements deep.
 2019-09-05 17:34:25 +03:00
Roman Khimov
5f0f9e1638 vm: implement PICK instruction 2019-09-05 15:18:04 +03:00
Roman Khimov
b34a1b6c25 vm: harden tests against VM failures 
Add a check for failed VM state, some of tests using logic values (like NZ
test) can succeed even with VM in FAULT state otherwise.
 2019-09-05 15:09:08 +03:00
Roman Khimov
fcf9c1213b vm: implement the NZ opcode 2019-09-05 15:05:44 +03:00
Roman Khimov
a9b9c9226d *: add/fix godoc comments to satisfy golint 
Fixes things like:
 * exported type/method/function X should have comment or be unexported
 * comment on exported type/method/function X should be of the form "X ..."
   (with optional leading article)

Refs. #213.
 2019-09-03 17:57:51 +03:00
Roman Khimov
42dfca47cf vm: fix double VM run from CLI 
Fixes one more instruction being ran when VM FAULTs:

NEO-GO-VM > run
NEO-GO-VM > error encountered at instruction 6 (ROLL)
NEO-GO-VM > runtime error: invalid memory address or nil pointer dereference
FAULT
NEO-GO-VM > error encountered at instruction 7 (SETITEM)
NEO-GO-VM > interface conversion: interface {} is []vm.StackItem, not []uint8

Refs. #96.
 2019-08-31 09:06:56 +03:00
Roman Khimov
428e789ddc vm: produce better error for ROLL with wrong index 
Current VM implementation doesn't return errors for many operations, so the
only way to handle it here is to check for NULL. Refs. #96.
 2019-08-31 09:04:59 +03:00
Roman Khimov
ec7e17ffa6 pkg: make use of the new crypto/hash package 
Simplifies a lot of code and removes some duplication. Unfortunately I had to
move test_util random functions in same commit to avoid cycle
dependencies. One of these random functions was also used in core/transaction
testing, to simplify things I've just dropped it there and used a static
string (which is nice to have for a test anyway).

There is still sha256 left in wallet (but it needs to pass Hash structure into
the signing function).
 2019-08-26 13:32:19 +03:00
Roman Khimov
18d971440b vm: expand binary expr tests with cases from #294 
Make a full set of numeric/string comparisons with `==` and `!=` being
evaluated to true and false.
 2019-08-20 20:43:43 +03:00
Roman Khimov
9b421874ae vm: enable assign/binary/numeric/struct tests 
These were not used for some reason.
 2019-08-20 20:37:06 +03:00
Roman Khimov
0309cff5a2 vm: implement EQUAL via reflection 
Fixes failing tests.
 2019-08-20 19:46:52 +03:00
Roman Khimov
4ccda04eea compiler: fix string/numbers equality/inequality gen again 
Unfortunately d58fbe0c88 didn't really fix the
problem because tinfo.Type (the expression resulting type) actually is a bool
and we need to check its parameters. Also, there is need to fix the NEQ
operation.
 2019-08-19 19:18:17 +03:00
Evgenii
d58fbe0c88 compiler: use separate opcodes for string and number equality 2019-08-16 16:56:09 +03:00
Roman Khimov
1e09037902 pkg/vm/compiler: update README 
s/opdump/inspect/ and new sample output.
 2019-08-15 19:53:21 +03:00
Roman Khimov
a1e3655560 interop: move into pkg/interop, replace pkg/vm/api 
neo-storm has developed more wrappers for syscall APIs, so they can and should
be used as a drop-in replacement for pkg/vm/api. Moving it out of vm, as it's
not exactly related to the VM itself.
 2019-08-15 19:41:51 +03:00
Roman Khimov
7cd91610df compiler: quick and dirty inspection fix for JMP instrs 
These were interpreted completely wrong, they actually have two next bytes
indicating an offset. This patch is a quick fix, actually more work is needed
here to properly display various instructions.
 2019-08-15 18:26:52 +03:00
Roman Khimov
1a4055a962 compiler: fix codegen for OR, fixes failing TestLOR 
0880e88fa5 breaks it by introducing a new label
that is not counted here.
 2019-08-15 18:25:22 +03:00
Roman Khimov
810f096811 compiler: change codegen to emit NUMEQUAL instead of EQUAL 
This is wrong, see issue #294, but it makes our VM tests work (as VM is
missing EQUAL implementation), so until #294 is properly resolved we're better
have this kind of wrong code generation.
 2019-08-15 18:22:56 +03:00
Evgenii
2daebdfce2 compiler: convert unary operators properly 
Imported from CityOfZion/neo-storm#62 PR.
 2019-08-14 20:08:17 +03:00
Evgenii
05c07a8567 compiler: fix argument handling for function arity >= 3 
Imported from CityOfZion/neo-storm#61 PR.
 2019-08-14 20:08:14 +03:00
Evgenii
5ba835d25b compiler: process packages in deterministic order 
Imported from CityOfZion/neo-storm#60 PR.
 2019-08-14 20:08:05 +03:00
fyrchik
1883a11f44 swap arguments for functions with more than 3 arguments (CityOfZion/neo-storm#51) 
Imported from CityOfZion/neo-storm (402ebb1d6226e2a30d8fdc19663227361cc72ca0).
 2019-08-14 19:14:08 +03:00
fyrchik
74602b6143 concatenate strings using CAT opcode (CityOfZion/neo-storm#54) 
Imported from CityOfZion/neo-storm (7d759a23e3af792657c7515645b890eadfa7329f).
 2019-08-14 19:14:07 +03:00
Anthony De Meulemeester
36b253872f WIP 
Imported from CityOfZion/neo-storm (cbfc89972e977fa808e9f68c9ad5c6c18bef291d).
 2019-08-14 19:14:07 +03:00
Anthony De Meulemeester
a765561b3a implemented bitwise instructions and fixed loading constants of type uint (CityOfZion/neo-storm#49) 
Imported from CityOfZion/neo-storm (b8a9b14dacc4fd6a62c236b2e89545684435a8fb).
 2019-08-14 19:14:07 +03:00
Anthony De Meulemeester
459d3654a2 fixed missing syscall transaction.GetHash() (CityOfZion/neo-storm#43) 
Several bug fixes and improvements

Imported from CityOfZion/neo-storm (8e8fe5c215bfaed51452482f4f28cc9956a1f69b).
 2019-08-14 19:14:07 +03:00
BlackTrace
69511e053f update right neo api (CityOfZion/neo-storm#40) 
Imported from CityOfZion/neo-storm (eee635918c80a9444dc1b37e537f9ecaf1a83d33).
 2019-08-14 19:14:07 +03:00
Anthony De Meulemeester
0880e88fa5 Fixed bug in else stmts (CityOfZion/neo-storm#42) 
* Fixed bug in else stmts

* Fixed if else bug

* Back to %v for formatting instructions

Imported from CityOfZion/neo-storm (ea8440e1454207753c8d209ce7c2cf724fd4ea16).
 2019-08-14 19:14:07 +03:00
Anthony De Meulemeester
b97e5aafec Fix/bugs (CityOfZion/neo-storm#38) 
* Fixed bug where void functions cleaned up their mess multiple times
* Compiler improvements
* Fixed Neo APIs naming convention
* Added NOP after syscall for matching AVM files with neo-python.

Imported from CityOfZion/neo-storm (f93a28ef87d272a74f821d45ae0c6735a8c610be).
 2019-08-14 19:14:07 +03:00
Anthony De Meulemeester
55966c7e07 Draft of iterator and enumerator (CityOfZion/neo-storm#26) 
* Draft of iterator and enumerator

* Added iterator API to the syscall mapping

* Added draft of the enumerator.go file

* Added enumerator interop API.

* Updated the changelog

Imported from CityOfZion/neo-storm (156093318b8612e810965bb1ea26e1babfb46cdd).
 2019-08-14 19:14:06 +03:00
Jeroen Peeters
df173c295d chore: change CompareBytes to EqualBytes (CityOfZion/neo-storm#22) 
* chore: change CompareBytes to EqualBytes

* chore: remove trailing spaces

* chore: rename EqualBytes to Equals

Imported from CityOfZion/neo-storm (da16e967d9631e132488731a42966bccb5ad7f30).
 2019-08-14 19:14:06 +03:00
Anthony De Meulemeester
f14833893c CityOfZion/neo-storm#17 Implemented util.CompareBytes (CityOfZion/neo-storm#21) 
Imported from CityOfZion/neo-storm (c0ee185a7cfd2c222fb7b4c8ca19885844d53855).
 2019-08-14 19:14:05 +03:00
Anthony De Meulemeester
b997eeb051 fixed token example and fixed compiler test with multiple dirs (CityOfZion/neo-storm#20) 
Imported from CityOfZion/neo-storm (2d0814a04c34f320dee41674066ccd766a7a8ea1).
 2019-08-14 19:14:05 +03:00
Jeroen Peeters
1f8ccdba16 chore: move token example to nep5 as package name (CityOfZion/neo-storm#19) 
* feat: add token example

* feat: code splitted package

* feat: use updated apis

* chore: change token namespace to nep5

* chore: add transfer event and readme updates

Imported from CityOfZion/neo-storm (63ec2d7dc23a60f128a8b383ceda1eaa15d919c1).
 2019-08-14 19:14:05 +03:00
Anthony De Meulemeester
9e15ab04ce Added missing execution interop api (CityOfZion/neo-storm#14) 
Imported from CityOfZion/neo-storm (ab12273da74e0d35df8863f08f1a914723d2bdba).
 2019-08-14 19:14:05 +03:00
Anthony De Meulemeester
0b33cf3193 new mapping for interop api (CityOfZion/neo-storm#10) 
* new mapping for interop api

* Fixed interop API mapping + added missing apis

* added engine apis

Imported from CityOfZion/neo-storm (ec5e6c8e2b587704a1e071e83b633d2d3a235300).
 2019-08-14 19:14:05 +03:00
Anthony De Meulemeester
2fbb269c0d added compiler to test all example files. (CityOfZion/neo-storm#9) 
Imported from CityOfZion/neo-storm (e756a91b292f525f2cd7e6d6c05b46df582c8ece).
 2019-08-14 19:14:05 +03:00
Anthony De Meulemeester
1927bc54d5 added partial syscall mapping 
Imported from CityOfZion/neo-storm (26d10c72f6e3d298135ec3995eb2d821640c3b7c).
 2019-08-14 18:55:29 +03:00
Roman Khimov
33c512032f vm: switch from Opcode to Instruction 
Which matches the changes done in neo-storm and also make this codebase closer
to the `dev` branch (that also uses Instruction).
 2019-08-14 15:40:31 +03:00
Evgeniy Kulikov
cdba88b9f2 Code refactoring (#143) 
- simplify code
- prealoc slices
- check errors in tests
- regexp Compile replaced with MustCompile
- uint* cannot be negative
 2019-02-19 14:22:33 +01:00
fyrchik
57cb289bcd make State a set as in reference C# implementation (#123) 
* make State a set as in reference C# implementation

* fix issues
 2019-02-19 12:47:25 +01:00
Evgeniy Kulikov
67cbcac643 Fix typos (#133) 
* Fix typos

* revert chains/unit_testnet

* revert chains

* fix review comments (thx @AlexVanin)
 2019-02-13 18:01:10 +00:00
Evgeniy Kulikov
630919bf7d Fix typos and warnings for GoReport / GolangCiLinter (#132) 
- typos
- gofmt -s
- govet warnings
- golangci-lint run
 2019-02-09 16:53:58 +01:00