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57 commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
9b10b4c4d8 vm: add tests for SIGN 2019-09-10 15:08:42 +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
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
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
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