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contracts/*: golint updates for this or self warning

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(cherry picked from commit 53b823afc8)
This commit is contained in:
Kiel barry
2018-04-30 16:05:24 -07:00
committed by Rafael Matias
parent 996230174c
commit fd34bf594c
6 changed files with 194 additions and 209 deletions
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69
contracts/ens/ens.go
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@ -35,7 +35,7 @@ var (
TestNetAddress = common.HexToAddress("0x112234455c3a32fd11230c42e7bccd4a84e02010")
)
// swarm domain name registry and resolver
// ENS is the swarm domain name registry and resolver
type ENS struct {
*contract.ENSSession
contractBackend bind.ContractBackend
@ -48,7 +48,6 @@ func NewENS(transactOpts *bind.TransactOpts, contractAddr common.Address, contra
if err != nil {
return nil, err
}
return &ENS{
&contract.ENSSession{
Contract: ens,
@ -60,27 +59,24 @@ func NewENS(transactOpts *bind.TransactOpts, contractAddr common.Address, contra
// DeployENS deploys an instance of the ENS nameservice, with a 'first-in, first-served' root registrar.
func DeployENS(transactOpts *bind.TransactOpts, contractBackend bind.ContractBackend) (common.Address, *ENS, error) {
// Deploy the ENS registry.
// Deploy the ENS registry
ensAddr, _, _, err := contract.DeployENS(transactOpts, contractBackend)
if err != nil {
return ensAddr, nil, err
}
ens, err := NewENS(transactOpts, ensAddr, contractBackend)
if err != nil {
return ensAddr, nil, err
}
// Deploy the registrar.
// Deploy the registrar
regAddr, _, _, err := contract.DeployFIFSRegistrar(transactOpts, contractBackend, ensAddr, [32]byte{})
if err != nil {
return ensAddr, nil, err
}
// Set the registrar as owner of the ENS root.
// Set the registrar as owner of the ENS root
if _, err = ens.SetOwner([32]byte{}, regAddr); err != nil {
return ensAddr, nil, err
}
return ensAddr, ens, nil
}
@ -89,10 +85,9 @@ func ensParentNode(name string) (common.Hash, common.Hash) {
label := crypto.Keccak256Hash([]byte(parts[0]))
if len(parts) == 1 {
return [32]byte{}, label
} else {
parentNode, parentLabel := ensParentNode(parts[1])
return crypto.Keccak256Hash(parentNode[:], parentLabel[:]), label
}
parentNode, parentLabel := ensParentNode(parts[1])
return crypto.Keccak256Hash(parentNode[:], parentLabel[:]), label
}
func EnsNode(name string) common.Hash {
@ -100,111 +95,101 @@ func EnsNode(name string) common.Hash {
return crypto.Keccak256Hash(parentNode[:], parentLabel[:])
}
func (self *ENS) getResolver(node [32]byte) (*contract.PublicResolverSession, error) {
resolverAddr, err := self.Resolver(node)
func (ens *ENS) getResolver(node [32]byte) (*contract.PublicResolverSession, error) {
resolverAddr, err := ens.Resolver(node)
if err != nil {
return nil, err
}
resolver, err := contract.NewPublicResolver(resolverAddr, self.contractBackend)
resolver, err := contract.NewPublicResolver(resolverAddr, ens.contractBackend)
if err != nil {
return nil, err
}
return &contract.PublicResolverSession{
Contract: resolver,
TransactOpts: self.TransactOpts,
TransactOpts: ens.TransactOpts,
}, nil
}
func (self *ENS) getRegistrar(node [32]byte) (*contract.FIFSRegistrarSession, error) {
registrarAddr, err := self.Owner(node)
func (ens *ENS) getRegistrar(node [32]byte) (*contract.FIFSRegistrarSession, error) {
registrarAddr, err := ens.Owner(node)
if err != nil {
return nil, err
}
registrar, err := contract.NewFIFSRegistrar(registrarAddr, self.contractBackend)
registrar, err := contract.NewFIFSRegistrar(registrarAddr, ens.contractBackend)
if err != nil {
return nil, err
}
return &contract.FIFSRegistrarSession{
Contract: registrar,
TransactOpts: self.TransactOpts,
TransactOpts: ens.TransactOpts,
}, nil
}
// Resolve is a non-transactional call that returns the content hash associated with a name.
func (self *ENS) Resolve(name string) (common.Hash, error) {
func (ens *ENS) Resolve(name string) (common.Hash, error) {
node := EnsNode(name)
resolver, err := self.getResolver(node)
resolver, err := ens.getResolver(node)
if err != nil {
return common.Hash{}, err
}
ret, err := resolver.Content(node)
if err != nil {
return common.Hash{}, err
}
return common.BytesToHash(ret[:]), nil
}
// Addr is a non-transactional call that returns the address associated with a name.
func (self *ENS) Addr(name string) (common.Address, error) {
func (ens *ENS) Addr(name string) (common.Address, error) {
node := EnsNode(name)
resolver, err := self.getResolver(node)
resolver, err := ens.getResolver(node)
if err != nil {
return common.Address{}, err
}
ret, err := resolver.Addr(node)
if err != nil {
return common.Address{}, err
}
return common.BytesToAddress(ret[:]), nil
}
// SetAddress sets the address associated with a name. Only works if the caller
// owns the name, and the associated resolver implements a `setAddress` function.
func (self *ENS) SetAddr(name string, addr common.Address) (*types.Transaction, error) {
func (ens *ENS) SetAddr(name string, addr common.Address) (*types.Transaction, error) {
node := EnsNode(name)
resolver, err := self.getResolver(node)
resolver, err := ens.getResolver(node)
if err != nil {
return nil, err
}
opts := self.TransactOpts
opts := ens.TransactOpts
opts.GasLimit = 200000
return resolver.Contract.SetAddr(&opts, node, addr)
}
// Register registers a new domain name for the caller, making them the owner of the new name.
// Only works if the registrar for the parent domain implements the FIFS registrar protocol.
func (self *ENS) Register(name string) (*types.Transaction, error) {
func (ens *ENS) Register(name string) (*types.Transaction, error) {
parentNode, label := ensParentNode(name)
registrar, err := self.getRegistrar(parentNode)
registrar, err := ens.getRegistrar(parentNode)
if err != nil {
return nil, err
}
return registrar.Contract.Register(&self.TransactOpts, label, self.TransactOpts.From)
return registrar.Contract.Register(&ens.TransactOpts, label, ens.TransactOpts.From)
}
// SetContentHash sets the content hash associated with a name. Only works if the caller
// owns the name, and the associated resolver implements a `setContent` function.
func (self *ENS) SetContentHash(name string, hash common.Hash) (*types.Transaction, error) {
func (ens *ENS) SetContentHash(name string, hash common.Hash) (*types.Transaction, error) {
node := EnsNode(name)
resolver, err := self.getResolver(node)
resolver, err := ens.getResolver(node)
if err != nil {
return nil, err
}
opts := self.TransactOpts
opts := ens.TransactOpts
opts.GasLimit = 200000
return resolver.Contract.SetContent(&opts, node, hash)
}