It's to be updated to the final release eventually, but it's a good contract
to showcase the coverage feature, quite a lot of code with good overall
percentage.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
Mostly it's about Go 1.22+ syntax with ranging over integers, but it also
prefers ranging over slices where possible (it makes code a little better to
read).
Notice that we have a number of dangerous loops where slices are mutated
during loop execution, many of these can't be converted since we need proper
length evalutation at every iteration.
Signed-off-by: Roman Khimov <roman@nspcc.ru>
This reverts commit 874ed1ac2e.
We can't allow this gnark update since minimum required Go version for
NeoGo and all examples is 1.20. It will be done as a part of #3089.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Turns out that Zcash swiched to BLS12-381 since https://github.com/zcash/zcash/issues/2502,
thanks to @EdgeDLT for pointing that out. I've checked that our
TestCubicCircuit_EndToEnd_Prod test passes with response file downloaded
from the attestations page of Zcash ceremony, thus I propose to put theirs
attestations link before the link to PPoT, because PPoT attestations contain
outdated links and not all responses can be downloaded.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
The example shows that the proover knows the solution of the cubic
equation: y = x^3 + x + 5. The example is constructed for BLS12-381
curve points using Groth-16 prooving algorithm. The example includes
everything that developer needs to start using ZKP on the NEO platform
with Go SDK:
1. The described cubic circuit implementation.
2. The off-chain proof generation with the help of gnark-crypto library.
3. Go verification contract generation and deployment with the help of
NeoGo libraries.
4. The on-chain proof verification for various sets of input data.
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
Unfortunately, without pre-set user extended types configuration for events
and without --guess-eventtypes flag set we are allowed to rely only on manifest
information about types. Manifest can't give us a lot of information, but we
still need to be able to generate RPC binding. Arrays and structs are correctly
handled by the current code, but maps always rely on the fact that map's value
type is set. It's not true in the described case, so make the maps type convertor
handle this situation in a similar way how arrays are handled.
Without this commit the following panic occurs on attempt to generate RPC binding:
```
--- FAIL: TestAssistedRPCBindings/testdata/notifications (0.01s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x7f7c0e]
goroutine 190 [running]:
testing.tRunner.func1.2({0x109cb40, 0x1d58760})
/usr/local/go/src/testing/testing.go:1396 +0x24e
testing.tRunner.func1()
/usr/local/go/src/testing/testing.go:1399 +0x39f
panic({0x109cb40, 0x1d58760})
/usr/local/go/src/runtime/panic.go:884 +0x212
github.com/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding.extendedTypeToGo({0x22, {0x0, 0x0}, {0x0, 0x0}, 0x0, 0x0, {0x0, 0x0, 0x0}}, ...)
/home/anna/Documents/GitProjects/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding/binding.go:515 +0x36e
github.com/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding.scTypeToGo({0xc000206d92?, 0xc000206d80?}, 0x22, 0xc0005d70e0)
/home/anna/Documents/GitProjects/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding/binding.go:643 +0x138
github.com/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding.scTemplateToRPC({{0xc00049bb07, 0x7}, 0xc0004c89c0, {0x33, 0x22, 0x11, 0x0, 0xff, 0xee, 0xdd, ...}, ...}, ...)
/home/anna/Documents/GitProjects/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding/binding.go:686 +0xbc4
github.com/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding.Generate({{0xc00049bb07, 0x7}, 0xc0004c89c0, {0x33, 0x22, 0x11, 0x0, 0xff, 0xee, 0xdd, ...}, ...})
/home/anna/Documents/GitProjects/nspcc-dev/neo-go/pkg/smartcontract/rpcbinding/binding.go:421 +0x387
github.com/nspcc-dev/neo-go/cli/smartcontract.contractGenerateSomething(0xc00043e2c0, 0x137cd00)
/home/anna/Documents/GitProjects/nspcc-dev/neo-go/cli/smartcontract/generate.go:99 +0x855
github.com/nspcc-dev/neo-go/cli/smartcontract.contractGenerateRPCWrapper(0xc00043e2c0?)
/home/anna/Documents/GitProjects/nspcc-dev/neo-go/cli/smartcontract/generate.go:60 +0x25
github.com/urfave/cli.HandleAction({0x1048380?, 0x137c660?}, 0x13?)
/home/anna/go/pkg/mod/github.com/urfave/cli@v1.22.5/app.go:524 +0x50
github.com/urfave/cli.Command.Run({{0x123539d, 0x13}, {0x0, 0x0}, {0x0, 0x0, 0x0}, {0x12577ad, 0x2a}, {0x127ad35, ...}, ...}, ...)
/home/anna/go/pkg/mod/github.com/urfave/cli@v1.22.5/command.go:173 +0x65b
github.com/urfave/cli.(*App).RunAsSubcommand(0xc0001f4000, 0xc00043e000)
/home/anna/go/pkg/mod/github.com/urfave/cli@v1.22.5/app.go:405 +0x91b
github.com/urfave/cli.Command.startApp({{0x12281e1, 0x8}, {0x0, 0x0}, {0x0, 0x0, 0x0}, {0x1254d8a, 0x28}, {0x0, ...}, ...}, ...)
/home/anna/go/pkg/mod/github.com/urfave/cli@v1.22.5/command.go:372 +0x6e7
github.com/urfave/cli.Command.Run({{0x12281e1, 0x8}, {0x0, 0x0}, {0x0, 0x0, 0x0}, {0x1254d8a, 0x28}, {0x0, ...}, ...}, ...)
/home/anna/go/pkg/mod/github.com/urfave/cli@v1.22.5/command.go:102 +0x825
github.com/urfave/cli.(*App).Run(0xc00024e000, {0xc0004f6420, 0xb, 0xb})
/home/anna/go/pkg/mod/github.com/urfave/cli@v1.22.5/app.go:277 +0x8a7
github.com/nspcc-dev/neo-go/cli/smartcontract.TestAssistedRPCBindings.func1.1(0x9f8829?)
/home/anna/Documents/GitProjects/nspcc-dev/neo-go/cli/smartcontract/generate_test.go:395 +0x5fc
testing.tRunner(0xc0006824e0, 0xc0004a3680)
/usr/local/go/src/testing/testing.go:1446 +0x10b
created by testing.(*T).Run
/usr/local/go/src/testing/testing.go:1493 +0x35f
```
Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
