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186 commits

Author SHA1 Message Date
Anna Shaleva
e2187c0a96 core: remove Block.GetTransaction interops 
Removed Neo.Block.GetTransaction and System.Block.GetTransaction
interops. These interops were replaced by new
System.Blockchain.GetTransactionFromBlock interop.
 2020-06-09 22:54:21 +03:00
Anna Shaleva
d692de5ea4 core: add System.Blockchain.GetTransactionFromBlock interop 2020-06-09 22:54:16 +03:00
Anna Shaleva
1e63ae4b3f core: update System.Blockchain.GetTransactionHeight interop 
Update System.Blockchain.GetTransactionHeight and removed
Neo.Blockchain.GetTransactionHeight interop as we don't need it.
 2020-06-09 22:04:18 +03:00
Anna Shaleva
53655c5ac2 core: implement new System.Blockchain.GetTransaction interop 
closes #1023

Now we put on stack stackitem.Array instead of Interop, so we don't
need old transaction-related interops anymore. Removed the following
interops:
	System.Transaction.GetHash
	Neo.Transaction.GetAttributes
	Neo.Transaction.GetHash
	Neo.Transaction.GetWitnesses
	Neo.Attribute.GetData
	Neo.Attribute.GetUsage

Also removed the following duplicated NEO interop:
	Neo.Blockchain.GetTransaction
 2020-06-09 22:04:13 +03:00
Evgenii Stratonikov
ed45ff98e3 compiler: process interop together with package 
Closes #913.
Provide package info in the funcScope to check if function is defined
insided an interop package. As a good side-effect bytecode for builtins from `util`
is no longer emitted.

Related #941.
 2020-06-09 12:41:33 +03:00
Anna Shaleva
783f5ecb01 vm: move StackItem to a separate package 
closes #912
 2020-06-08 13:27:08 +03:00
Roman Khimov
a986e2a064 *: drop support for old on-chain assets 
You no longer can transfer them, so creating/renewing/storing doesn't make
much sense.
 2020-06-05 19:21:37 +03:00
Roman Khimov
709146f295 transaction: drop Inputs and Outputs, forget UTXO 2020-06-05 19:20:16 +03:00
Roman Khimov
21efccd300 transaction: remove type field, set Version to 0 
Two changes being done here, because they require a lot of updates to
tests. Now we're back into version 0 and we only have one type of
transaction.

It also removes GetType and GetScript interops, both are obsolete in Neo 3.
 2020-06-05 19:20:16 +03:00
Evgenii Stratonikov
f39b51deee compiler: restore support for GetUnspentCoins 
Revert a587274.
 2020-05-27 12:01:50 +03:00
Roman Khimov
7e96f82a5b compiler/interop: add support for working with witnesses 2020-05-27 12:01:50 +03:00
Roman Khimov
e32d0e01af compiler|transaction: remove transaction.GetUnspentCoins support 
It's useless. Even though there is Neo.Transaction.GetUnspentCoins syscall
that can be used, its return type is an interop structure that's not accepted
by any other syscall, so you can't really do anything with it. And there is no
such interface for the .net Framework.
 2020-05-27 12:01:50 +03:00
Roman Khimov
1cbd75ab9e compiler|transaction: fix transaction.GetScript build, add to interop 
There is no such syscall as Neo.Transaction.GetScript and GetScript should be
available for contract's use.
 2020-05-27 12:01:50 +03:00
Roman Khimov
559e8a16da compiler/storage: add read-only related interops 2020-05-27 12:01:50 +03:00
Roman Khimov
6d2b2d7263 compiler/iterator: add missing iterator.Concat function 
We have a syscall for it, so it should be exposed.
 2020-05-27 12:01:50 +03:00
Roman Khimov
4e21e43e72 compiler: add support for enumerator interop package 2020-05-26 20:07:19 +03:00
Roman Khimov
14409addd9 compiler/interop: expose GetTransactionHeight 
And sort syscall names as they change the indentation anyway.
 2020-05-26 19:55:21 +03:00
Roman Khimov
9718891d79 compiler: add support for attribute syscalls 2020-05-26 19:53:28 +03:00
Roman Khimov
6fac273d5d compiler: add missing asset syscalls, sort them 2020-05-26 19:52:46 +03:00
Roman Khimov
41337732be compiler: add support for account syscalls 
Turns out, they never functioned correctly.
 2020-05-26 19:52:24 +03:00
Evgenii Stratonikov
f4fa712440 vm: make PUSH0 emit Integer 2020-05-22 14:16:32 +03:00
Evgenii Stratonikov
8cf7871c26 compiler: support nested slice element assignment 2020-05-21 08:30:32 +03:00
Evgenii Stratonikov
5b0e73ddf0 compiler: initialize struct fields explicitly 
By default VM initializes every field of a new struct to a Boolean.
If field contains another struct, we need to initialize it to default
value explicitly. This commit sets default values for uninitialized
field.
 2020-05-21 08:30:32 +03:00
Evgenii Stratonikov
051e3608ff compiler: support nested struct fielid assignment 2020-05-21 08:30:32 +03:00
Evgenii Stratonikov
1e40f9dac0 compiler: support nested struct reading 2020-05-21 08:30:31 +03:00
Evgenii Stratonikov
1a4a0c154b compiler: support var-declaration of byte slices 
Related #801.
 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
3a4ed7dfe8 compiler: emit Buffer for byte slices 
All byte slices are mutable so buffer is a right stack item.
 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
b4f1142149 compiler: emit byte constants properly 2020-05-20 17:45:56 +03:00
Evgenii Stratonikov
1b105a9f1d compiler: allow using OP= with struct fields and slice elements 
Do it in a generic way, there is no need in restricting to only
variables.
Port of #954.
 2020-05-20 14:14:29 +03:00
Evgenii Stratonikov
fdb217ec81 compiler: process _ as a special variable 
It is more convenient to drop values inside `emitStoreVar` because this
makes other code has less special cases.
 2020-05-20 14:14:29 +03:00
Evgenii Stratonikov
3926456d86 compiler: add test for iterating over map with range 2020-05-20 14:14:29 +03:00
Evgenii Stratonikov
d0735257ce compiler: support range loops with value variables 
Closes #958.
 2020-05-20 14:14:29 +03:00
Evgenii Stratonikov
b126056f04 compiler: use iterators in range loops 
It is simpler than having some counters on stack and will help us to
support maps in future.
 2020-05-20 14:14:29 +03:00
Evgenii Stratonikov
34a4c15932 compiler: support byte slice declaration 2020-05-20 11:10:02 +03:00
Evgenii Stratonikov
582469028b compiler: emit default values in a generic way 2020-05-20 11:10:01 +03:00
Evgenii Stratonikov
2cc58c3c9e compiler: allow to declare multiple compound types in a var decl 2020-05-19 16:57:02 +03:00
Evgenii Stratonikov
b4bad11699 compiler: count the number of variables correctly 2020-05-19 16:47:43 +03:00
Evgenii Stratonikov
0629479560 compiler: support non-struct methods 
There is no need to restrict ourselves just to structs.
 2020-05-19 16:40:26 +03:00
Evgenii Stratonikov
87f6ba34db compiler: process index expresstions in a generic way 
All type errors such as string index in slice will be catched during parse phase.
 2020-05-19 16:40:26 +03:00
Evgenii Stratonikov
aeaa4a8210 compiler: process bool literals in a generic way 2020-05-19 16:40:26 +03:00
Evgenii Stratonikov
70d0ff869d compiler: refactor typeinfo functions 2020-05-19 16:40:26 +03:00
Evgenii Stratonikov
89b5e92b83 compiler: add tests for function literal 
Add test forgotten in #934.
 2020-05-12 16:23:09 +03:00
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
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
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
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
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
d18199ce42 vm: implement REVERSE* opcodes 
Use new opcodes in the compiler instead of XSWAP/ROLL.
 2020-05-06 13:03:49 +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
Evgenii Stratonikov
9081211f12 vm: implement NOTEQUAL opcode 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
2fd63387c0 compiler: support CONVERT interops 
When result is needed to have certain type, we should have ability
to convert it, with the help of CONVERT opcode.
 2020-04-28 16:44:06 +03:00
Evgenii Stratonikov
bfcb1a409f compiler: extend possible returned values 
All integer values (int32, uint64...) should be able to be returned.
 2020-04-28 16:44:06 +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
bfbbef952a vm: move InteropNameToID to emit package 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
4ad29d0867 compiler: emit Neo.Crypto.ECDsaVerify syscall instead of CHECKSIG 
Also change the name of `VerifySignature` interop, to match
syscall's name. It also accepts arguments in different order.
 2020-04-13 13:47:39 +03:00
Evgenii Stratonikov
948729137f vm: remove HASH160/HASH256 opcodes 2020-04-13 13:47:39 +03:00
Evgenii Stratonikov
c71ad6a5db cli: output contract after compiling only with --verbose flag 
Also remove Debug from compiler option as it is used only in CLI.
 2020-04-08 13:09:51 +03:00
Evgenii Stratonikov
da826522f8 compiler: set variable index on first declaration 
This way variables will have indices corresponding to their
order of appearance in a source file.
 2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
457e7e006a compiler: support exporting method variables in debug info 2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
5bdee683e6 cli,compiler: support emitting debug info in a file 2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
5d3da26e1e compiler: support sequence points in debug info 
Sequence points is a way to map a specific instruction offset
from a compiled contract to a text span in a source file.

This commit implements mapping only for `return` statements.
Further improvements are straight-forward.
 2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
24fef35ead compiler: split Compile info sub-functions 
Also add tests for basic debug info.
 2020-04-06 15:30:07 +03:00
Evgenii Stratonikov
00c40b58aa compiler: record basic debug info 
Save info about method's byte-code sections.
 2020-04-06 15:30:06 +03:00
Evgenii Stratonikov
efad66aee1 compiler: make Notify accept varargs 2020-04-06 09:31:09 +03:00
Evgenii Stratonikov
a43c9b9246 compiler: calculate stack size more precisely 
When calculating number of local variables, only
defining assignments (i.e. via `:=`) must be taken into account.
 2020-04-01 17:36:19 +03:00
Evgenii Stratonikov
3cbd138b67 compiler: allow to declare variables of struct type 
Previously, struct variables were initialize with VM's nil value
which is of primitive type. Thus SETITEM used for struct's field
updating wasn't working.
 2020-03-27 13:50:09 +03:00
Evgenii Stratonikov
6baed7a010 compiler: allow to declare slices of compound types 
Previously this declarations were ignored which resulted
in runtime errors, because VM's nil is an element of primitive type
and can't be converted to an array.
 2020-03-27 13:50:09 +03:00
Anna Shaleva
37cb60a0b5 compiler/interop: add missing methods to interop.Iterator 
Add Next() and Value() to interop.Iterator and corresponding syscalls to
compiler
 2020-03-26 16:39:10 +03:00
Evgenii Stratonikov
f0b6f783aa compiler: allow for loops with empty condition 2020-03-26 15:00:14 +03:00
Roman Khimov
abd7855890
Merge pull request #742 from nspcc-dev/add-dynamic-appcall 
vm: add support for dynamic invocations in APPCALL
 2020-03-11 17:27:05 +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
2a1402f25d compiler: clean up stack on branch statements 
When `return` or `break` statement is encountered inside
a for/range/switch statement, top stack items can be auxilliary.
They need to be cleaned up before returning from the function.
 2020-03-10 15:26:00 +03:00
Evgenii Stratonikov
91301df161 compiler: implement fallthrough in switch 
Closes #628.
 2020-03-10 12:34:07 +03:00
Roman Khimov
e41d434a49 *: move all packages from CityOfZion to nspcc-dev 2020-03-03 17:21:42 +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
b461a6ab63 compiler: do not short-circuit in complex conditions 
Current implementation of short-circuting is just plain wrong
as it uses `last` or `before-last` labels which meaning depend
on context. It doesn't even handle simple assignements like
`a := x == 1 && y == 2`.

This commit makes all jumps in such conditions local
and adds tests.

Closes #699, #700.
 2020-02-28 17:44:46 +03:00
Evgenii Stratonikov
177b725dc1 compiler: make writeJumps return error for bad jumps 
The script is invalid anyway so it is better to notify user.
 2020-02-21 17:45:45 +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
da89f18999 compiler: support break and continue in range loops 2020-02-21 12:03:37 +03:00
Evgenii Stratonikov
ccb53414f2 compiler: support break in switch statements 2020-02-21 12:03:37 +03:00
Evgenii Stratonikov
03dc6f7cbb compiler: support continue statement in for loops 2020-02-21 12:03:36 +03:00
Evgenii Stratonikov
fa2edc46e0 compiler: support break statement in for loops 2020-02-21 11:38:23 +03:00
Roman Khimov
d16121c10a
Merge pull request #654 from nspcc-dev/feat/subslice 
compiler: support sub-slicing
 2020-02-16 23:49:53 +03:00
Roman Khimov
4a4cd6416c
Merge pull request #658 from nspcc-dev/feature/range 
compiler: support for-range loops
 2020-02-16 23:49:30 +03:00
Evgenii Stratonikov
8ea3ef0b62 compiler: process empty []byte{} literals as ByteArrays 
It is wrong to count an empty byte slice as an Array.
 2020-02-12 12:16:15 +03:00
Evgenii Stratonikov
32bce30777 compiler: support sub-slicing 2020-02-12 12:16:15 +03:00
Evgenii Stratonikov
310f7449d7 compiler: support for-range loops 2020-02-12 12:16:04 +03:00
Evgenii Stratonikov
ae03560589 compiler: support initializing struct fields from a variable 
While initializing a struct, it is a top item on ALTSTACK.
This means that if we need to load a local variable,
DUPFROMALTSTACK won't longer push an array of locals on stack
but rather a currently initializing struct.

Closes #656.
 2020-02-12 12:15:54 +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
Evgenii Stratonikov
895a8d9ebc compiler: reverse args in AppCall 
Invoked contract is expecting first argument to be on top of the stack.
Change test to use non-commutative operation to catch this behaviour.
 2020-02-10 10:53:58 +03:00
Evgenii Stratonikov
52d8d58593 compiler,interop: make AppCall accept varargs 2020-02-10 10:51:29 +03:00