go build

[sejuaju]

./verkle.go:77:20: child.ComputeCommitment undefined (type verkle.VerkleNode has no field or method ComputeCommitment) ./verkle.go:89:64: child.ComputeCommitment undefined (type verkle.VerkleNode has no field or method ComputeCommitment)

var ( zero [32]byte

verkleCommand = &cli.Command{
    Name:        "verkle",
    Usage:       "A set of experimental verkle tree management commands",
    Description: "",
    Subcommands: []*cli.Command{
        {
            Name:      "verify",
            Usage:     "verify the conversion of a MPT into a verkle tree",
            ArgsUsage: "<root>",
            Action:    verifyVerkle,
            Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
            Description: `

geth verkle verify This command takes a root commitment and attempts to rebuild the tree. , }, { Name: "dump", Usage: "Dump a verkle tree to a DOT file", ArgsUsage: "<root> <key1> [<key 2> ...]", Action: expandVerkle, Flags: flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags), Description: geth verkle dump <key 1> [<key 2> ...] This command will produce a dot file representing the tree, rooted at . in which key1, key2, ... are expanded. `, }, }, } )

// recurse into each child to ensure they can be loaded from the db. The tree isn't rebuilt // (only its nodes are loaded) so there is no need to flush them, the garbage collector should // take care of that for us. func checkChildren(root verkle.VerkleNode, resolver verkle.NodeResolverFn) error { switch node := root.(type) { case *verkle.InternalNode: for i, child := range node.Children() { childC := child.ComputeCommitment().Bytes()

        childS, err := resolver(childC[:])
        if bytes.Equal(childC[:], zero[:]) {
            continue
        }
        if err != nil {
            return fmt.Errorf("could not find child %x in db: %w", childC, err)
        }
        // depth is set to 0, the tree isn't rebuilt so it's not a problem
        childN, err := verkle.ParseNode(childS, 0, childC[:])
        if err != nil {
            return fmt.Errorf("decode error child %x in db: %w", child.ComputeCommitment().Bytes(), err)
        }
        if err := checkChildren(childN, resolver); err != nil {
            return fmt.Errorf("%x%w", i, err) // write the path to the erroring node
        }
    }
case *verkle.LeafNode:
    // sanity check: ensure at least one value is non-zero

    for i := 0; i < verkle.NodeWidth; i++ {
        if len(node.Value(i)) != 0 {
            return nil
        }
    }
    return errors.New("Both balance and nonce are 0")
case verkle.Empty:
    // nothing to do
default:
    return fmt.Errorf("unsupported type encountered %v", root)
}

return nil

}

func verifyVerkle(ctx *cli.Context) error { stack, _ := makeConfigNode(ctx) defer stack.Close()

chaindb := utils.MakeChainDatabase(ctx, stack, true)
headBlock := rawdb.ReadHeadBlock(chaindb)
if headBlock == nil {
    log.Error("Failed to load head block")
    return errors.New("no head block")
}
if ctx.NArg() > 1 {
    log.Error("Too many arguments given")
    return errors.New("too many arguments")
}
var (
    rootC common.Hash
    err   error
)
if ctx.NArg() == 1 {
    rootC, err = parseRoot(ctx.Args().First())
    if err != nil {
        log.Error("Failed to resolve state root", "error", err)
        return err
    }
    log.Info("Rebuilding the tree", "root", rootC)
} else {
    rootC = headBlock.Root()
    log.Info("Rebuilding the tree", "root", rootC, "number", headBlock.NumberU64())
}

serializedRoot, err := chaindb.Get(rootC[:])
if err != nil {
    return err
}
root, err := verkle.ParseNode(serializedRoot, 0, rootC[:])
if err != nil {
    return err
}

if err := checkChildren(root, chaindb.Get); err != nil {
    log.Error("Could not rebuild the tree from the database", "err", err)
    return err
}

log.Info("Tree was rebuilt from the database")
return nil

}

func expandVerkle(ctx *cli.Context) error { stack, _ := makeConfigNode(ctx) defer stack.Close()

chaindb := utils.MakeChainDatabase(ctx, stack, true)
var (
    rootC   common.Hash
    keylist [][]byte
    err     error
)
if ctx.NArg() >= 2 {
    rootC, err = parseRoot(ctx.Args().First())
    if err != nil {
        log.Error("Failed to resolve state root", "error", err)
        return err
    }
    keylist = make([][]byte, 0, ctx.Args().Len()-1)
    args := ctx.Args().Slice()
    for i := range args[1:] {
        key, err := hex.DecodeString(args[i+1])
        log.Info("decoded key", "arg", args[i+1], "key", key)
        if err != nil {
            return fmt.Errorf("error decoding key #%d: %w", i+1, err)
        }
        keylist = append(keylist, key)
    }
    log.Info("Rebuilding the tree", "root", rootC)
} else {
    return fmt.Errorf("usage: %s root key1 [key 2...]", ctx.App.Name)
}

serializedRoot, err := chaindb.Get(rootC[:])
if err != nil {
    return err
}
root, err := verkle.ParseNode(serializedRoot, 0, rootC[:])
if err != nil {
    return err
}

for i, key := range keylist {
    log.Info("Reading key", "index", i, "key", keylist[0])
    root.Get(key, chaindb.Get)
}

if err := os.WriteFile("dump.dot", []byte(verkle.ToDot(root)), 0600); err != nil {
    log.Error("Failed to dump file", "err", err)
} else {
    log.Info("Tree was dumped to file", "file", "dump.dot")
}
return nil

}

[jsign]

@sejuaju, was creating an issue a mistake? It feels like you're a bot (sorry if that isn't the case).

[sejuaju]

/verkle.go:77:20: child.ComputeCommitment undefined (type verkle.VerkleNode has no field or method ComputeCommitment) ./verkle.go:89:64: child.ComputeCommitment undefined (type verkle.VerkleNode has no field or method ComputeCommitment)

sorry bro i got this error while running it

[jsign]

/verkle.go:77:20: child.ComputeCommitment undefined (type verkle.VerkleNode has no field or method ComputeCommitment) ./verkle.go:89:64: child.ComputeCommitment undefined (type verkle.VerkleNode has no field or method ComputeCommitment)

sorry bro i got this error while running it

Can you explain how you are running it? This repository is a library, not really an executable. From what I see, you're running some version of geth.

If possible, give some instructions on how I can reproduce your build error from a clean directory.

[sejuaju]

I cloned the go-ethereum repository and changed some parts of the code to integrate the go-verkle library. I run the project using the following commands: go build and go run in the go-go-ethereum/cmd/geth directory I'm having trouble trying to call theComputeCommitmentmethod onverkle.VerkleNode` // Copyright 2022 The go-ethereum Authors // This file is part of go-ethereum. // // go-ethereum is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // go-ethereum is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with go-ethereum. If not, see http://www.gnu.org/licenses/.

package main

import ( "bytes" "encoding/hex" "errors" "fmt" "os"

"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/internal/flags"
"github.com/ethereum/go-ethereum/log"
"github.com/gballet/go-verkle"
cli "github.com/urfave/cli/v2"

)

var ( zero [32]byte

verkleCommand = &cli.Command{
    Name:        "verkle",
    Usage:       "A set of experimental verkle tree management commands",
    Description: "",
    Subcommands: []*cli.Command{
        {
            Name:      "verify",
            Usage:     "verify the conversion of a MPT into a verkle tree",
            ArgsUsage: "<root>",
            Action:    verifyVerkle,
            Flags:     flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags),
            Description: `

geth verkle verify This command takes a root commitment and attempts to rebuild the tree. , }, { Name: "dump", Usage: "Dump a verkle tree to a DOT file", ArgsUsage: "<root> <key1> [<key 2> ...]", Action: expandVerkle, Flags: flags.Merge(utils.NetworkFlags, utils.DatabasePathFlags), Description: geth verkle dump <key 1> [<key 2> ...] This command will produce a dot file representing the tree, rooted at . in which key1, key2, ... are expanded. `, }, }, } )

// recurse into each child to ensure they can be loaded from the db. The tree isn't rebuilt // (only its nodes are loaded) so there is no need to flush them, the garbage collector should // take care of that for us. func checkChildren(root verkle.VerkleNode, resolver verkle.NodeResolverFn) error { switch node := root.(type) { case *verkle.InternalNode: for i, child := range node.Children() { childC := child.ComputeCommitment().Bytes()

        childS, err := resolver(childC[:])
        if bytes.Equal(childC[:], zero[:]) {
            continue
        }
        if err != nil {
            return fmt.Errorf("could not find child %x in db: %w", childC, err)
        }
        // depth is set to 0, the tree isn't rebuilt so it's not a problem
        childN, err := verkle.ParseNode(childS, 0, childC[:])
        if err != nil {
            return fmt.Errorf("decode error child %x in db: %w", child.ComputeCommitment().Bytes(), err)
        }
        if err := checkChildren(childN, resolver); err != nil {
            return fmt.Errorf("%x%w", i, err) // write the path to the erroring node
        }
    }
case *verkle.LeafNode:
    // sanity check: ensure at least one value is non-zero

    for i := 0; i < verkle.NodeWidth; i++ {
        if len(node.Value(i)) != 0 {
            return nil
        }
    }
    return errors.New("Both balance and nonce are 0")
case verkle.Empty:
    // nothing to do
default:
    return fmt.Errorf("unsupported type encountered %v", root)
}

return nil

}

func verifyVerkle(ctx *cli.Context) error { stack, _ := makeConfigNode(ctx) defer stack.Close()

chaindb := utils.MakeChainDatabase(ctx, stack, true)
headBlock := rawdb.ReadHeadBlock(chaindb)
if headBlock == nil {
    log.Error("Failed to load head block")
    return errors.New("no head block")
}
if ctx.NArg() > 1 {
    log.Error("Too many arguments given")
    return errors.New("too many arguments")
}
var (
    rootC common.Hash
    err   error
)
if ctx.NArg() == 1 {
    rootC, err = parseRoot(ctx.Args().First())
    if err != nil {
        log.Error("Failed to resolve state root", "error", err)
        return err
    }
    log.Info("Rebuilding the tree", "root", rootC)
} else {
    rootC = headBlock.Root()
    log.Info("Rebuilding the tree", "root", rootC, "number", headBlock.NumberU64())
}

serializedRoot, err := chaindb.Get(rootC[:])
if err != nil {
    return err
}
root, err := verkle.ParseNode(serializedRoot, 0, rootC[:])
if err != nil {
    return err
}

if err := checkChildren(root, chaindb.Get); err != nil {
    log.Error("Could not rebuild the tree from the database", "err", err)
    return err
}

log.Info("Tree was rebuilt from the database")
return nil

}

func expandVerkle(ctx *cli.Context) error { stack, _ := makeConfigNode(ctx) defer stack.Close()

chaindb := utils.MakeChainDatabase(ctx, stack, true)
var (
    rootC   common.Hash
    keylist [][]byte
    err     error
)
if ctx.NArg() >= 2 {
    rootC, err = parseRoot(ctx.Args().First())
    if err != nil {
        log.Error("Failed to resolve state root", "error", err)
        return err
    }
    keylist = make([][]byte, 0, ctx.Args().Len()-1)
    args := ctx.Args().Slice()
    for i := range args[1:] {
        key, err := hex.DecodeString(args[i+1])
        log.Info("decoded key", "arg", args[i+1], "key", key)
        if err != nil {
            return fmt.Errorf("error decoding key #%d: %w", i+1, err)
        }
        keylist = append(keylist, key)
    }
    log.Info("Rebuilding the tree", "root", rootC)
} else {
    return fmt.Errorf("usage: %s root key1 [key 2...]", ctx.App.Name)
}

serializedRoot, err := chaindb.Get(rootC[:])
if err != nil {
    return err
}
root, err := verkle.ParseNode(serializedRoot, 0, rootC[:])
if err != nil {
    return err
}

for i, key := range keylist {
    log.Info("Reading key", "index", i, "key", keylist[0])
    root.Get(key, chaindb.Get)
}

if err := os.WriteFile("dump.dot", []byte(verkle.ToDot(root)), 0600); err != nil {
    log.Error("Failed to dump file", "err", err)
} else {
    log.Info("Tree was dumped to file", "file", "dump.dot")
}
return nil

}

[jsign]

I cloned the go-ethereum repository and changed some parts of the code...

Trying to use this repo master with Geth can be quite tricky since things change rapidly.

We're usually trying latest versions in @gballet fork https://github.com/gballet/go-ethereum, but it's pretty hard to point a specific stable branch for now.

[gballet]

No answer from the user in a while. Please use the branch beverly-hills-head. If the issue persists, reopen an issue with the exact command/calling code that you use, so that we can reproduce the build error.