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Author SHA1 Message Date
Anna Shaleva
c7a040ff81 core: fix bug with native contracts methods initialisation 
`NewNEO()` and `NewGAS()` methods are trying to initialise
both `onPersist` and `incBalance` methods of NEO and GAS AFTER
nep5TokenNative is set to the VALUE of created nep5 token.
In this situation an attemmpt to call the corresponding native contracts
methods (e.g. transfer native GAS) leads to contract invocation failure,
as far as `nep5TokenNative.incBalance` method is nil.

Fixed this by initializing both `onPersist` and `incBalance` methods
before getting the value of nep5 contract.
 2020-05-20 23:16:04 +03:00
Anna Shaleva
4ebac5a069 core: fix bug in nep5 notifications handling 
Native contracts deployment creates `Transfer` notifications and adds
them into interop context. However, these notifications were not stored
for two reasons:
1. typo in `Transfer` (so these notifications were not recognised during
processing of the invocation tx in (*Blockchain).storeBlock(...) method)
2. these notifications have `from` adress setted to null, so conversion
to []byte fails. Same thing could happen with `to`.

Related C# issue: https://github.com/neo-project/neo/issues/1646

For now, made both `transfer` and `Transfer` valid.
 2020-05-20 23:16:04 +03:00
Anna Shaleva
45b8bdb51c core: fix bug in consensus 
We should set MerkleRoot in approving block irrespective to
transactions presented in the block.
 2020-05-20 23:16:04 +03:00
Roman Khimov
e8ad09f30d
Merge pull request #948 from nspcc-dev/feature/buffer 
Implement NEO3 Buffer type and string functions
 2020-05-20 19:02:05 +03:00
Evgenii Stratonikov
22067d400d rpc: update testchain 2020-05-20 17:45:56 +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
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
Roman Khimov
d6e4c506b6
Merge pull request #959 from nspcc-dev/feature/compiler_types 
compiler: refactor typeinfo functions
 2020-05-20 16:28:48 +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
Roman Khimov
b9b1066435
Merge pull request #942 from nspcc-dev/feature/slots 
Implement NEO3 VM slots mechanism
 2020-05-12 18:04:18 +03:00
Roman Khimov
9eaec2adcd
Merge pull request #946 from nspcc-dev/examples/nep5-transfer-bug 
examples: Use "or" operator in transfer check of NEP5 token
 2020-05-12 16:58:26 +03:00
alexvanin
7f3392680d examples: Use "or" operator in transfer check of NEP5 token 
CanTransfer function checks if "to" and "from" values are
correct script hashes. If one of these values is correct and one
incorrect, then function returns false positive result. It uses "and"
operator which requires both "to" and "from" script hashes to be
incorrect to fail transaction.

Instead transaction must fail if at least one argument is incorrect,
so it should be "or" operator.
 2020-05-12 16:49:04 +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
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
Roman Khimov
8e916f5ab8
Merge pull request #934 from nspcc-dev/feature/pointer 
Implement function pointers in the VM
 2020-05-12 15:47:01 +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
Roman Khimov
326264abb2
Merge pull request #937 from nspcc-dev/fix/slice 
compiler: support implicit type in function arguments
 2020-05-07 11:36:47 +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