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1458 commits

Author SHA1 Message Date
Evgenii Stratonikov
e21015233b compiler: implement shadowing of global variables 
Before introducing slots it was hard to change global variables
preserving changes across multiple function calls.
This commit implements such possibility.
Closes #638.
 2020-05-12 16:23:09 +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
75fb3af48f compiler: add basic support for function literals 
Implement basic support for function literals.
Nested function literals and variables from closure are not supported for now.
 2020-05-12 12:56:52 +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
Roman Khimov
b83ee77698
Merge pull request #938 from nspcc-dev/fix/appcall 
vm: remove APPCALL, TAILCALL
 2020-05-08 13:11:02 +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
ec900c7ff7 core: implement System.Contract.Call interop 2020-05-07 14:39:06 +03:00
Evgenii Stratonikov
301c1b7601 native: save native contract state on deploy 2020-05-07 14:03:14 +03:00
Evgenii Stratonikov
f9f3192b48 vm: move RET and SYSCALL opcodes 2020-05-07 13:23:05 +03:00
Evgenii Stratonikov
7ac15a7557 compiler: support implicit type in function arguments 
Go supports declaring multiple arguments of the same type without
duplicating type name. Now we support this too.
 2020-05-07 11:33:09 +03:00
Evgenii Stratonikov
b0a89e8a1a compiler: support named returns 2020-05-06 18:22:52 +03:00
Evgenii Stratonikov
156a2eddc5 compiler: support using return in some branches 
When `return` is used in one codepath, but not the other,
we do not clean altstack properly. This commit fixes it.
 2020-05-06 18:22:52 +03:00
Evgenii Stratonikov
770cff8b91 compiler: allow to use return with no arguments 2020-05-06 18:22:52 +03:00
Evgenii Stratonikov
5ab4b9284b core: remove unused function from tests 2020-05-06 16:00:16 +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
Roman Khimov
963a70d54a
Merge pull request #926 from nspcc-dev/feature/stack 
Implement NEO3 VM stack opcodes
 2020-05-06 14:51:04 +03:00
Roman Khimov
7287c01bd0 rpc/server: rework submitblock empty test 
The original intention here was to check for server reaction in presence of
validation errors (response.ErrValidationFailed) and it was very easy to make
validation fail for block without transactions in Neo 2. But in Neo 3
transactionless blocks are perfectly valid (see
29d321b5e1) which broke this test even though we
didn't see it until websocket addition (which required
8cec6694ae to make this test work initially).

So make a valid block and then spoil its verification script.
 2020-05-06 14:20:35 +03:00
Roman Khimov
fd72f0635e rpc/server: prevent test panicing in checkErrGetResult() 
If we expect some resp.Error, then check for it explicitly.
 2020-05-06 13:11:12 +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
Roman Khimov
b04c8623c5
Merge pull request #925 from nspcc-dev/rpc-over-websocket 
RPC over websocket
 2020-05-06 12:52:58 +03:00
Roman Khimov
ec6ade4c9b
Merge pull request #920 from nspcc-dev/neo3/transaction/cosigners 
core: implement cosigners mechanism
 2020-05-04 17:15:07 +03:00
Roman Khimov
3de48d7d90 rpc/client: add minimalistic websocket client 2020-05-04 16:54:35 +03:00
Roman Khimov
a458a17748 rpc/client: separate out http-related functionality 2020-05-04 16:54:35 +03:00
Roman Khimov
6d202ad4c5 rpc/client: drop Version from Options 
It makes no sense at all, it's a JSON-RPC version.
 2020-05-04 16:54:35 +03:00
Roman Khimov
19397ec4a8 rpc/client: fix some comments 2020-05-04 16:54:35 +03:00
Roman Khimov
20d477cbd8 client: remove Balancer getter/setter, make it an Option 
Keep it internal to the client instance, it makes no sense exposing it to the
outside user.
 2020-05-04 16:54:35 +03:00
Roman Khimov
315aabde56 client: make http.Client internal to the Client 
Exposing it the outside users is strange, so incapsulate it completely.

Fix DialTimeout setting along the way, handle negative timeouts as invalid.
 2020-05-04 16:54:35 +03:00
Roman Khimov
ec62edac68 rpc/server: add websockets support via '/ws' URL 2020-05-04 16:54:35 +03:00
Roman Khimov
8cec6694ae rpc/server: fix test block encoding 
The end result of the previous code wasn't even a valid JSON.
 2020-05-04 16:54:35 +03:00
Roman Khimov
d275652b37 rpc/server: use httptest.Server for testing 
Which allows to reuse it for websockets.
 2020-05-04 16:54:35 +03:00
Roman Khimov
1b523be4b6 rpc: shuffle handleHttpRequest/handleRequest responsibilities 
Make handleRequest reusable in other contexts like websockets.
 2020-05-04 13:57:23 +03:00
Roman Khimov
236f3dabdd rpc: change handlers to always return response.Error for errors 
As it's expected by WriteErrorResponse() actually.
 2020-05-04 13:57:15 +03:00
Roman Khimov
57de98e1a3 rpc/server: refactor handler methods a little 
request.In is a natural request representation, one can always get
request.Params from it.
 2020-05-04 13:57:08 +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
Anna Shaleva
d1ec01c45e util: implement Serializable interface over Uint160 2020-05-04 11:49:14 +03:00
Anna Shaleva
08f5708edb core: remove Script attribute type 2020-05-04 11:49:14 +03:00
Anna Shaleva
2ec1d76320 compiler: add ability to generate .abi.json file 
A part of integration with NEO Blockchain Toolkit (see #902). To be
able to deploy smart-contract compiled with neo-go compiler via NEO
Express, we have to generate additional .abi.json file. This file
contains the following information:
 - hash of the compiled contract
 - smart-contract metadata (title, description, version, author,
email, has-storage, has-dynamic-invoke, is-payable)
 - smart-contract entry point
 - functions
 - events

However, this .abi.json file is slightly different from the one,
described in manifest.go, so we have to add auxilaury stractures for
json marshalling. The .abi.json format used by NEO-Express is described
[here](https://github.com/neo-project/neo-devpack-dotnet/blob/master/src/Neo.Compiler.MSIL/FuncExport.cs#L66).
 2020-05-04 08:37:39 +03:00
Anna Shaleva
ab7f2cb4fb compiler: fix bug with missing methods parameters 
Method `methodInfoFromScope(...)` always returned an empty parameters
set, so we were missing this information in both .abi.json and
.debug.json files. Fixed now.
 2020-05-04 08:37:39 +03:00