Roman Khimov
782ca64d92
vm: accept uint16 in makeStackItem()
2019-10-15 12:56:25 +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