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registry.go
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registry.go
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package ethartifact
import (
"fmt"
"sort"
"github.com/0xsequence/ethkit/ethcontract"
"github.com/0xsequence/ethkit/go-ethereum/accounts/abi"
)
func NewContractRegistry() *ContractRegistry {
return &ContractRegistry{
contracts: map[string]Artifact{},
names: []string{},
}
}
type ContractRegistry struct {
contracts map[string]Artifact
names []string // index of contract names in the map
}
func (c *ContractRegistry) Add(artifact Artifact) error {
if c.contracts == nil {
c.contracts = map[string]Artifact{}
}
if artifact.ContractName == "" {
return fmt.Errorf("unable to register contract with empty name")
}
c.contracts[artifact.ContractName] = artifact
c.names = append(c.names, artifact.ContractName)
sort.Sort(sort.StringSlice(c.names))
return nil
}
func (c *ContractRegistry) Register(contractName string, contractABI abi.ABI, contractBin []byte) (Artifact, error) {
r := Artifact{ContractName: contractName, ABI: contractABI, Bin: contractBin}
err := c.Add(r)
if err != nil {
return Artifact{}, err
}
return r, nil
}
func (s *ContractRegistry) RegisterJSON(contractName string, contractABIJSON string, contractBin []byte) (Artifact, error) {
parsedABI, err := ethcontract.ParseABI(contractABIJSON)
if err != nil {
return Artifact{}, err
}
return s.Register(contractName, parsedABI, contractBin)
}
func (c *ContractRegistry) MustAdd(contractABI Artifact) {
err := c.Add(contractABI)
if err != nil {
panic(err)
}
}
func (c *ContractRegistry) MustRegister(contractName string, contractABI abi.ABI, contractBin []byte) Artifact {
r, err := c.Register(contractName, contractABI, contractBin)
if err != nil {
panic(err)
}
return r
}
func (c *ContractRegistry) MustRegisterJSON(contractName string, contractABIJSON string, contractBin []byte) Artifact {
r, err := c.RegisterJSON(contractName, contractABIJSON, contractBin)
if err != nil {
panic(err)
}
return r
}
func (c *ContractRegistry) MustGet(name string) Artifact {
artifact, ok := c.Get(name)
if !ok {
panic(fmt.Sprintf("ethartifact: ContractRegistry#MustGet failed to get '%s'", name))
}
return artifact
}
func (c *ContractRegistry) ContractNames() []string {
return c.names
}
func (c *ContractRegistry) Get(name string) (Artifact, bool) {
artifact, ok := c.contracts[name]
return artifact, ok
}
func (c *ContractRegistry) Encode(contractName, method string, args ...interface{}) ([]byte, error) {
if c.contracts == nil {
return nil, fmt.Errorf("contract registry cannot find contract %s", contractName)
}
artifact, ok := c.contracts[contractName]
if !ok {
return nil, fmt.Errorf("contract registry cannot find contract %s", contractName)
}
return artifact.ABI.Pack(method, args...)
}