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293 commits

Author SHA1 Message Date
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
Evgenii Stratonikov
1fc64d515f compiler: abstract out emitReverse 
Extract logic of reversing top n items of the stack
in a separate function.
 2020-02-10 10:43:31 +03:00
Evgenii Stratonikov
dbc41b3044 compiler: replace emit* instructions with those from emit/ package 2020-02-06 18:45:37 +03:00
Evgenii Stratonikov
c3094123a1 compiler: do not store constants as variables 
Because the constants are loaded directly via `emitLoadConst`, there is no need to store
them in an array of locals. It can have a big overhead, because it
is done at the beginning of every function.
 2020-02-03 13:29:28 +03:00
Evgenii Stratonikov
8b922c057c compiler: fix a bug with assignment to underscore 
When using underscore it does not appear in the list
of local variables, so it can't be assigned.
In this commit the value is dropped.
 2020-01-29 17:07:55 +03:00
Evgenii Stratonikov
7053b3b2c0 compiler: optimize append argument processing 
Append should leave it's result on top of the stack.
Thus we need to transform top of the stack:
(top) a . b --> (top) a . b . b
It can be done with just OVER + SWAP.
 2020-01-29 12:28:38 +03:00
Evgenii Stratonikov
b6629fb6bd compiler: refactor argument handling for builtins 
It is more convenient to have all unusual logic in one place.
 2020-01-29 12:28:38 +03:00
Evgenii Stratonikov
d2326a8b96 compiler: support panic in source 
In situations where VM's FAULT state needs to be reached,
panic function can be used. It compiles to THROW instruction.
 2020-01-29 12:28:38 +03:00
Evgenii Stratonikov
e0f47decc7 compiler: replace ROLL(2) with equivalent ROT 2020-01-29 09:56:16 +03:00
Evgenii Stratonikov
28571bd3dc compiler: implement switch statement support 2020-01-29 09:56:16 +03:00
Evgenii Stratonikov
d190b3a2e0 compiler: emit integers correctly 
A while ago VM serialization format for Integer items was changed
but compiler continued to emit Integers in old format.
This commit changes compiler behaviour to be compatible with VM.
 2020-01-28 16:39:19 +03:00
Evgenii Stratonikov
77f9a2ee26 compiler: convert AppCall parameter from string properly 2020-01-27 15:34:03 +03:00
Evgenii Stratonikov
d65d6ab08d compiler: allow to convert string constants to []byte 
Also load constant directly into stack, not by name.
 2020-01-27 15:29:52 +03:00
Evgenii Stratonikov
097d35b9d5 compiler: fix a bug with FromAddress handling 
Conversion of string to address with FromAddress is performed
at compile time so there is no need to push parameters on stack.
 2020-01-27 13:14:40 +03:00
Evgenii Stratonikov
330db36168 compiler: implement engine.AppCall interop 2020-01-27 13:14:36 +03:00
Evgenii Stratonikov
4fd766fe09 compiler: allow usage of string literals in index expressions 2020-01-23 17:28:35 +03:00
Evgenii Stratonikov
058958729d compiler: support map literals 2020-01-23 17:06:15 +03:00
Evgenii Stratonikov
def73db8e9 compiler: support variables in slice literals 2020-01-23 15:51:16 +03:00
Roman Khimov
67fe99b0ba
Merge pull request #618 from nspcc-dev/feature/for 
compiler: support for loops with no init/post condition
 2020-01-23 13:19:55 +03:00
Evgenii Stratonikov
328267ca6f compiler: support for loops with no init/post condition 
Make it possible to use `for` loop with a single condition.
 2020-01-23 11:48:43 +03:00
Evgenii Stratonikov
bd37359393 compiler: implement ECDSA signature verification 
Add VerifySignature interop for signature verification.
It is converted to VERIFY opcode.
 2020-01-23 10:56:15 +03:00
Roman Khimov
9eb880a095
Merge pull request #568 from nspcc-dev/feature/compiler_clean_and_tests 
compiler: clean and tests
 2020-01-14 18:44:07 +03:00
Vsevolod Brekelov
7084925e4b compiler: add test for compile and save 2020-01-14 17:33:04 +03:00
Roman Khimov
9145855d2c
Merge pull request #579 from nspcc-dev/refactor-crypto 
This moves some functionality into micro-packages, improves testing,
unexports some code and fixes bugs along the way.
 2019-12-25 18:12:50 +03:00
Roman Khimov
b246653f62 address: rename functions as per #579 comments 
Make them more clear to understand.
 2019-12-25 17:34:18 +03:00
Roman Khimov
e685e9bf9a address: move into its own package 
Doesn't really belong to the crypto.
 2019-12-25 15:22:02 +03:00
Evgenii Stratonikov
f4571ba8cf compiler: implement multiple return support 2019-12-24 16:46:43 +03:00
Roman Khimov
094c8474b7 compiler: move tests from vm/tests 
These don't belong to VM as they compile some Go code and run it in a VM. One
may call them integration tests, but I prefer to attribute them to
compiler. Moving these tests into pkg/compiler also allows to properly count
the compiler coverage they add:

-ok     github.com/CityOfZion/neo-go/pkg/compiler       (cached)        coverage: 69.7% of statements
+ok     github.com/CityOfZion/neo-go/pkg/compiler       (cached)        coverage: 84.2% of statements

This change also fixes `contant` typo and removes fake packages exposed to the
public by moving foo/bar/foobar into the testdata directory.
 2019-12-23 17:05:34 +03:00
Vsevolod Brekelov
d576aa2753 compiler: remove not used functions 2019-12-20 13:05:47 +03:00
Roman Khimov
79323cc10b
Merge pull request #567 from nspcc-dev/feature/codegen_add_mod 
compiler: Add Mod token, closes #563
 2019-12-19 15:32:18 +03:00
Vsevolod Brekelov
b68e9591aa compiler: add test for codegen 2019-12-19 15:23:14 +03:00
Vsevolod Brekelov
3c7ac7eb95 compiler: add mod 2019-12-19 15:23:14 +03:00
Evgenii Stratonikov
891a878af1 compiler: implement assignment to a variable index 
Fixes #564.
 2019-12-19 13:14:17 +03:00
Roman Khimov
e4d821f32d
Merge pull request #546 from nspcc-dev/write-optimizations 
Write optimizations
 2019-12-06 19:40:38 +03:00
Roman Khimov
844491d365 *: use more efficient WriteBytes where appropriate 
Before this patch on block import we could easily be spending more than 6
seconds out of 30 in Uint256 encoding for UnspentBalance, now it's completely
off the radar.
 2019-12-06 18:22:21 +03:00
Evgenii Stratonikov
57efad912c util: add LE suffix to Uint160 methods 2019-12-06 12:16:55 +03:00
Roman Khimov
852e6a335b compiler: move it up from vm 
It really deserves it, I think. Especially given that it doesn't have any
direct usage of `vm` package now.
 2019-12-03 18:23:46 +03:00