Merge pull request #3405 from nspcc-dev/dynamic-hash

cli: allow dynamic contract hash for contract bindings
This commit is contained in:
Roman Khimov 2024-04-15 13:16:13 +03:00 committed by GitHub
commit 1786136a23
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GPG key ID: B5690EEEBB952194
5 changed files with 523 additions and 39 deletions

View file

@ -25,6 +25,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neo-go/pkg/vm/vmstate"
@ -145,18 +146,7 @@ func Blocks() []*alias.Block {
cmd = append(cmd, "--in", ctrPath, "--bindings", bindingsPath)
// Replace `pkg/interop` in go.mod to avoid getting an actual module version.
goMod := filepath.Join(ctrPath, "go.mod")
data, err := os.ReadFile(goMod)
require.NoError(t, err)
i := bytes.IndexByte(data, '\n')
data = append([]byte("module myimport.com/testcontract"), data[i:]...)
wd, err := os.Getwd()
require.NoError(t, err)
data = append(data, "\nreplace github.com/nspcc-dev/neo-go/pkg/interop => "...)
data = append(data, filepath.Join(wd, "../../pkg/interop")...)
require.NoError(t, os.WriteFile(goMod, data, os.ModePerm))
require.NoError(t, updateGoMod(ctrPath, "myimport.com/testcontract", "../../pkg/interop"))
cmd = append(cmd, "--config", cfgPath,
"--out", filepath.Join(tmpDir, "out.nef"),
@ -176,7 +166,7 @@ func Blocks() []*alias.Block {
bs, err := os.ReadFile(outPath)
require.NoError(t, err)
require.Equal(t, `// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> --hash <hash> [--config <config>]; DO NOT EDIT.
require.Equal(t, `// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
// Package testcontract contains wrappers for testcontract contract.
package testcontract
@ -213,6 +203,84 @@ func ToMap(a []testcontract.MyPair) map[int]string {
`, string(bs))
}
// updateGoMod updates the go.mod file located in the specified directory.
// It sets the module name and replaces the neo-go interop package path with
// the provided one to avoid getting an actual module version.
func updateGoMod(dir, moduleName, neoGoPath string) error {
goModPath := filepath.Join(dir, "go.mod")
data, err := os.ReadFile(goModPath)
if err != nil {
return fmt.Errorf("failed to read go.mod: %w", err)
}
i := bytes.IndexByte(data, '\n')
if i == -1 {
return fmt.Errorf("unexpected go.mod format")
}
updatedData := append([]byte("module "+moduleName), data[i:]...)
wd, err := os.Getwd()
if err != nil {
return fmt.Errorf("failed to get working directory: %w", err)
}
replacementPath := filepath.Join(wd, neoGoPath)
updatedData = append(updatedData, "\nreplace github.com/nspcc-dev/neo-go/pkg/interop => "+replacementPath+" \n"...)
if err := os.WriteFile(goModPath, updatedData, os.ModePerm); err != nil {
return fmt.Errorf("failed to write updated go.mod: %w", err)
}
return nil
}
func TestDynamicWrapper(t *testing.T) {
// For proper contract init. The actual version as it will be replaced.
smartcontract.ModVersion = "v0.0.0"
tmpDir := t.TempDir()
e := testcli.NewExecutor(t, true)
ctrPath := "../smartcontract/testdata"
verifyHash := testcli.DeployContract(t, e, filepath.Join(ctrPath, "verify.go"), filepath.Join(ctrPath, "verify.yml"), testcli.ValidatorWallet, testcli.ValidatorAddr, testcli.ValidatorPass)
helperContract := `package testcontract
import (
"github.com/nspcc-dev/neo-go/pkg/interop"
verify "myimport.com/testcontract/bindings"
)
func CallVerifyContract(h interop.Hash160) bool{
contractInstance := verify.NewContract(h)
return contractInstance.Verify()
}`
helperDir := filepath.Join(tmpDir, "helper")
e.Run(t, "neo-go", "contract", "init", "--name", helperDir)
require.NoError(t, updateGoMod(helperDir, "myimport.com/testcontract", "../../pkg/interop"))
require.NoError(t, os.WriteFile(filepath.Join(helperDir, "main.go"), []byte(helperContract), os.ModePerm))
require.NoError(t, os.Mkdir(filepath.Join(helperDir, "bindings"), os.ModePerm))
e.Run(t, "neo-go", "contract", "generate-wrapper",
"--config", filepath.Join(ctrPath, "verify.bindings.yml"), "--manifest", filepath.Join(ctrPath, "verify.manifest.json"),
"--out", filepath.Join(helperDir, "bindings", "testdata.go"))
e.Run(t, "neo-go", "contract", "compile", "--in", filepath.Join(helperDir, "main.go"), "--config", filepath.Join(helperDir, "neo-go.yml"))
helperHash := testcli.DeployContract(t, e, filepath.Join(helperDir, "main.go"), filepath.Join(helperDir, "neo-go.yml"), testcli.ValidatorWallet, testcli.ValidatorAddr, testcli.ValidatorPass)
e.In.WriteString("one\r")
e.Run(t, "neo-go", "contract", "invokefunction",
"--rpc-endpoint", "http://"+e.RPC.Addresses()[0],
"--wallet", testcli.ValidatorWallet, "--address", testcli.ValidatorAddr, "--force", "--await", helperHash.StringLE(), "callVerifyContract", verifyHash.StringLE())
tx, _ := e.CheckTxPersisted(t, "Sent invocation transaction ")
aer, err := e.Chain.GetAppExecResults(tx.Hash(), trigger.Application)
require.NoError(t, err)
require.Equal(t, aer[0].Stack[0].Value().(bool), true)
}
func TestContractInitAndCompile(t *testing.T) {
// For proper contract init. The actual version as it will be replaced.
smartcontract.ModVersion = "v0.0.0"
@ -265,15 +333,7 @@ func TestContractInitAndCompile(t *testing.T) {
})
// Replace `pkg/interop` in go.mod to avoid getting an actual module version.
goMod := filepath.Join(ctrPath, "go.mod")
data, err := os.ReadFile(goMod)
require.NoError(t, err)
wd, err := os.Getwd()
require.NoError(t, err)
data = append(data, "\nreplace github.com/nspcc-dev/neo-go/pkg/interop => "...)
data = append(data, filepath.Join(wd, "../../pkg/interop")...)
require.NoError(t, os.WriteFile(goMod, data, os.ModePerm))
require.NoError(t, updateGoMod(ctrPath, "myimport.com/testcontract", "../../pkg/interop"))
cmd = append(cmd, "--config", cfgPath)

View file

@ -30,17 +30,22 @@ var generatorFlags = []cli.Flag{
},
cli.StringFlag{
Name: "hash",
Usage: "Smart-contract hash",
Usage: "Smart-contract hash. If not passed, the wrapper will be designed for dynamic hash usage",
},
}
var generateWrapperCmd = cli.Command{
Name: "generate-wrapper",
Usage: "generate wrapper to use in other contracts",
UsageText: "neo-go contract generate-wrapper --manifest <file.json> --out <file.go> --hash <hash> [--config <config>]",
Description: ``,
Action: contractGenerateWrapper,
Flags: generatorFlags,
Name: "generate-wrapper",
Usage: "generate wrapper to use in other contracts",
UsageText: "neo-go contract generate-wrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]",
Description: `Generates a Go wrapper to use it in other smart contracts. If the
--hash flag is provided, CALLT instruction is used for the target contract
invocation as an optimization of the wrapper contract code. If omitted, the
generated wrapper will be designed for dynamic hash usage, allowing
the hash to be specified at runtime.
`,
Action: contractGenerateWrapper,
Flags: generatorFlags,
}
var generateRPCWrapperCmd = cli.Command{
@ -52,15 +57,15 @@ var generateRPCWrapperCmd = cli.Command{
}
func contractGenerateWrapper(ctx *cli.Context) error {
return contractGenerateSomething(ctx, binding.Generate, false)
return contractGenerateSomething(ctx, binding.Generate)
}
func contractGenerateRPCWrapper(ctx *cli.Context) error {
return contractGenerateSomething(ctx, rpcbinding.Generate, true)
return contractGenerateSomething(ctx, rpcbinding.Generate)
}
// contractGenerateSomething reads generator parameters and calls the given callback.
func contractGenerateSomething(ctx *cli.Context, cb func(binding.Config) error, allowEmptyHash bool) error {
func contractGenerateSomething(ctx *cli.Context, cb func(binding.Config) error) error {
if err := cmdargs.EnsureNone(ctx); err != nil {
return err
}
@ -73,8 +78,6 @@ func contractGenerateSomething(ctx *cli.Context, cb func(binding.Config) error,
if err != nil {
return cli.NewExitError(fmt.Errorf("invalid contract hash: %w", err), 1)
}
} else if !allowEmptyHash {
return cli.NewExitError("contract hash must be provided via --hash flag", 1)
}
m, _, err := readManifest(ctx.String("manifest"), h)
if err != nil {

View file

@ -151,7 +151,7 @@ callflags:
"--hash", h.StringLE(),
}))
const expected = `// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> --hash <hash> [--config <config>]; DO NOT EDIT.
const expected = `// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
// Package wrapper contains wrappers for MyContract contract.
package wrapper
@ -233,6 +233,99 @@ func MyFunc(in map[int]mycontract.Input) []mycontract.Output {
data, err := os.ReadFile(outFile)
require.NoError(t, err)
require.Equal(t, expected, string(data))
require.NoError(t, app.Run([]string{"", "generate-wrapper",
"--manifest", manifestFile,
"--config", cfgPath,
"--out", outFile,
}))
expectedWithDynamicHash := `// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
// Package wrapper contains wrappers for MyContract contract.
package wrapper
import (
"github.com/heyitsme/mycontract"
"github.com/nspcc-dev/neo-go/pkg/interop"
"github.com/nspcc-dev/neo-go/pkg/interop/contract"
"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
"github.com/nspcc-dev/neo-go/pkg/interop/storage"
)
// Contract represents the MyContract smart contract.
type Contract struct {
Hash interop.Hash160
}
// NewContract returns a new Contract instance with the specified hash.
func NewContract(hash interop.Hash160) Contract {
return Contract{Hash: hash}
}
// Sum invokes ` + "`sum`" + ` method of contract.
func (c Contract) Sum(first int, second int) int {
return contract.Call(c.Hash, "sum", contract.All, first, second).(int)
}
// Sum2 invokes ` + "`sum`" + ` method of contract.
func (c Contract) Sum2(first int, second int, third int) int {
return contract.Call(c.Hash, "sum", contract.All, first, second, third).(int)
}
// Sum3 invokes ` + "`sum3`" + ` method of contract.
func (c Contract) Sum3() int {
return contract.Call(c.Hash, "sum3", contract.ReadOnly).(int)
}
// Zum invokes ` + "`zum`" + ` method of contract.
func (c Contract) Zum(typev int, typev_ int, funcv int) int {
return contract.Call(c.Hash, "zum", contract.All, typev, typev_, funcv).(int)
}
// JustExecute invokes ` + "`justExecute`" + ` method of contract.
func (c Contract) JustExecute(arr []any) {
contract.Call(c.Hash, "justExecute", contract.All, arr)
}
// GetPublicKey invokes ` + "`getPublicKey`" + ` method of contract.
func (c Contract) GetPublicKey() interop.PublicKey {
return contract.Call(c.Hash, "getPublicKey", contract.All).(interop.PublicKey)
}
// OtherTypes invokes ` + "`otherTypes`" + ` method of contract.
func (c Contract) OtherTypes(ctr interop.Hash160, tx interop.Hash256, sig interop.Signature, data any) bool {
return contract.Call(c.Hash, "otherTypes", contract.All, ctr, tx, sig, data).(bool)
}
// SearchStorage invokes ` + "`searchStorage`" + ` method of contract.
func (c Contract) SearchStorage(ctx storage.Context) iterator.Iterator {
return contract.Call(c.Hash, "searchStorage", contract.All, ctx).(iterator.Iterator)
}
// GetFromMap invokes ` + "`getFromMap`" + ` method of contract.
func (c Contract) GetFromMap(intMap map[string]int, indices []string) []int {
return contract.Call(c.Hash, "getFromMap", contract.All, intMap, indices).([]int)
}
// DoSomething invokes ` + "`doSomething`" + ` method of contract.
func (c Contract) DoSomething(bytes []byte, str string) any {
return contract.Call(c.Hash, "doSomething", contract.ReadStates, bytes, str).(any)
}
// GetBlockWrapper invokes ` + "`getBlockWrapper`" + ` method of contract.
func (c Contract) GetBlockWrapper() ledger.Block {
return contract.Call(c.Hash, "getBlockWrapper", contract.All).(ledger.Block)
}
// MyFunc invokes ` + "`myFunc`" + ` method of contract.
func (c Contract) MyFunc(in map[int]mycontract.Input) []mycontract.Output {
return contract.Call(c.Hash, "myFunc", contract.All, in).([]mycontract.Output)
}
`
data, err = os.ReadFile(outFile)
require.NoError(t, err)
require.Equal(t, expectedWithDynamicHash, string(data))
}
func TestGenerateValidPackageName(t *testing.T) {
@ -267,7 +360,7 @@ func TestGenerateValidPackageName(t *testing.T) {
data, err := os.ReadFile(outFile)
require.NoError(t, err)
require.Equal(t, `// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> --hash <hash> [--config <config>]; DO NOT EDIT.
require.Equal(t, `// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
// Package myspacecontract contains wrappers for My space contract contract.
package myspacecontract

297
cli/smartcontract/testdata/verify.bindings.yml vendored Executable file
View file

@ -0,0 +1,297 @@
package: testdata
hash: "0x0000000000000000000000000000000000000000"
overrides:
burnGas.gas: int
call: any
call.args: '[]any'
call.f: any
call.method: string
call.scriptHash: github.com/nspcc-dev/neo-go/pkg/interop.Hash160
callWithToken: any
callWithToken.args: '[]any'
callWithToken.flags: int
callWithToken.method: string
callWithToken.scriptHash: string
callWithTokenNoRet.args: '[]any'
callWithTokenNoRet.flags: int
callWithTokenNoRet.method: string
callWithTokenNoRet.scriptHash: string
checkWitness: bool
checkWitness.hashOrKey: '[]byte'
createMultisigAccount: '[]byte'
createMultisigAccount.m: int
createMultisigAccount.pubs: '[]github.com/nspcc-dev/neo-go/pkg/interop.PublicKey'
createStandardAccount: '[]byte'
createStandardAccount.pub: github.com/nspcc-dev/neo-go/pkg/interop.PublicKey
currentHash: github.com/nspcc-dev/neo-go/pkg/interop.Hash256
currentIndex: int
currentSigners: '[]github.com/nspcc-dev/neo-go/pkg/interop/native/ledger.TransactionSigner'
equals: bool
equals.b: any
gasLeft: int
getAddressVersion: int
getBlock: '*github.com/nspcc-dev/neo-go/pkg/interop/native/ledger.Block'
getBlock.indexOrHash: any
getCallFlags: any
getCallingScriptHash: github.com/nspcc-dev/neo-go/pkg/interop.Hash160
getEntryScriptHash: github.com/nspcc-dev/neo-go/pkg/interop.Hash160
getExecutingScriptHash: github.com/nspcc-dev/neo-go/pkg/interop.Hash160
getInvocationCounter: int
getNetwork: int
getNotifications: '[][]any'
getNotifications.h: github.com/nspcc-dev/neo-go/pkg/interop.Hash160
getRandom: int
getScriptContainer: '*github.com/nspcc-dev/neo-go/pkg/interop/native/ledger.Transaction'
getTime: int
getTransaction: '*github.com/nspcc-dev/neo-go/pkg/interop/native/ledger.Transaction'
getTransaction.hash: github.com/nspcc-dev/neo-go/pkg/interop.Hash256
getTransactionFromBlock: '*github.com/nspcc-dev/neo-go/pkg/interop/native/ledger.Transaction'
getTransactionFromBlock.indexOrHash: any
getTransactionFromBlock.txIndex: int
getTransactionHeight: int
getTransactionHeight.hash: github.com/nspcc-dev/neo-go/pkg/interop.Hash256
getTransactionSigners: '[]github.com/nspcc-dev/neo-go/pkg/interop/native/ledger.TransactionSigner'
getTransactionSigners.hash: github.com/nspcc-dev/neo-go/pkg/interop.Hash256
getTransactionVMState: int
getTransactionVMState.hash: github.com/nspcc-dev/neo-go/pkg/interop.Hash256
getTrigger: int
loadScript: any
loadScript.args: '[]any'
loadScript.f: any
loadScript.script: '[]byte'
log.message: string
notify.args: '[]any'
notify.name: string
onNEP11Payment.amount: int
onNEP11Payment.data: any
onNEP11Payment.from: github.com/nspcc-dev/neo-go/pkg/interop.Hash160
onNEP11Payment.token: '[]byte'
onNEP17Payment.amount: int
onNEP17Payment.data: any
onNEP17Payment.from: github.com/nspcc-dev/neo-go/pkg/interop.Hash160
opcode0NoReturn.op: string
opcode1: any
opcode1NoReturn.arg: any
opcode1NoReturn.op: string
opcode1.arg: any
opcode1.op: string
opcode2: any
opcode2NoReturn.arg1: any
opcode2NoReturn.arg2: any
opcode2NoReturn.op: string
opcode2.arg1: any
opcode2.arg2: any
opcode2.op: string
opcode3: any
opcode3.arg1: any
opcode3.arg2: any
opcode3.arg3: any
opcode3.op: string
platform: '[]byte'
syscall0: any
syscall0NoReturn.name: string
syscall0.name: string
syscall1: any
syscall1NoReturn.arg: any
syscall1NoReturn.name: string
syscall1.arg: any
syscall1.name: string
syscall2: any
syscall2NoReturn.arg1: any
syscall2NoReturn.arg2: any
syscall2NoReturn.name: string
syscall2.arg1: any
syscall2.arg2: any
syscall2.name: string
syscall3: any
syscall3NoReturn.arg1: any
syscall3NoReturn.arg2: any
syscall3NoReturn.arg3: any
syscall3NoReturn.name: string
syscall3.arg1: any
syscall3.arg2: any
syscall3.arg3: any
syscall3.name: string
syscall4: any
syscall4NoReturn.arg1: any
syscall4NoReturn.arg2: any
syscall4NoReturn.arg3: any
syscall4NoReturn.arg4: any
syscall4NoReturn.name: string
syscall4.arg1: any
syscall4.arg2: any
syscall4.arg3: any
syscall4.arg4: any
syscall4.name: string
toBlockSR: '*github.com/nspcc-dev/neo-go/pkg/interop/native/ledger.BlockSR'
verify: bool
namedtypes:
ledger.Block:
base: Array
name: ledger.Block
fields:
- field: Hash
base: Hash256
- field: Version
base: Integer
- field: PrevHash
base: Hash256
- field: MerkleRoot
base: Hash256
- field: Timestamp
base: Integer
- field: Nonce
base: Integer
- field: Index
base: Integer
- field: NextConsensus
base: Hash160
- field: TransactionsLength
base: Integer
ledger.BlockSR:
base: Array
name: ledger.BlockSR
fields:
- field: Hash
base: Hash256
- field: Version
base: Integer
- field: PrevHash
base: Hash256
- field: MerkleRoot
base: Hash256
- field: Timestamp
base: Integer
- field: Nonce
base: Integer
- field: Index
base: Integer
- field: NextConsensus
base: Hash160
- field: TransactionsLength
base: Integer
- field: PrevStateRoot
base: Hash256
ledger.Transaction:
base: Array
name: ledger.Transaction
fields:
- field: Hash
base: Hash256
- field: Version
base: Integer
- field: Nonce
base: Integer
- field: Sender
base: Hash160
- field: SysFee
base: Integer
- field: NetFee
base: Integer
- field: ValidUntilBlock
base: Integer
- field: Script
base: ByteArray
ledger.TransactionSigner:
base: Array
name: ledger.TransactionSigner
fields:
- field: Account
base: Hash160
- field: Scopes
base: Integer
- field: AllowedContracts
base: Array
value:
base: Hash160
- field: AllowedGroups
base: Array
value:
base: PublicKey
- field: Rules
base: Array
value:
base: Array
name: ledger.WitnessRule
ledger.WitnessCondition:
base: Array
name: ledger.WitnessCondition
fields:
- field: Type
base: Integer
- field: Value
base: Any
ledger.WitnessRule:
base: Array
name: ledger.WitnessRule
fields:
- field: Action
base: Integer
- field: Condition
base: Array
name: ledger.WitnessCondition
types:
call.args:
base: Array
value:
base: Any
call.f:
base: InteropInterface
interface: iterator
callWithToken.args:
base: Array
value:
base: Any
callWithTokenNoRet.args:
base: Array
value:
base: Any
createMultisigAccount.pubs:
base: Array
value:
base: PublicKey
currentSigners:
base: Array
value:
base: Array
name: ledger.TransactionSigner
getBlock:
base: Array
name: ledger.Block
getCallFlags:
base: InteropInterface
interface: iterator
getNotifications:
base: Array
value:
base: Array
value:
base: Any
getScriptContainer:
base: Array
name: ledger.Transaction
getTransaction:
base: Array
name: ledger.Transaction
getTransactionFromBlock:
base: Array
name: ledger.Transaction
getTransactionSigners:
base: Array
value:
base: Array
name: ledger.TransactionSigner
loadScript.args:
base: Array
value:
base: Any
loadScript.f:
base: InteropInterface
interface: iterator
notify.args:
base: Array
value:
base: Any
toBlockSR:
base: Array
name: ledger.BlockSR

View file

@ -19,7 +19,7 @@ import (
)
const srcTmpl = `
{{- define "METHOD" -}}
{{- define "FUNCTION" -}}
// {{.Name}} {{.Comment}}
func {{.Name}}({{range $index, $arg := .Arguments -}}
{{- if ne $index 0}}, {{end}}
@ -33,7 +33,21 @@ func {{.Name}}({{range $index, $arg := .Arguments -}}
{{- end}}
}
{{- end -}}
// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> --hash <hash> [--config <config>]; DO NOT EDIT.
{{- define "METHOD" -}}
// {{.Name}} {{.Comment}}
func (c Contract) {{.Name}}({{range $index, $arg := .Arguments -}}
{{- if ne $index 0}}, {{end}}
{{- .Name}} {{.Type}}
{{- end}}) {{if .ReturnType }}{{ .ReturnType}} {
return contract.Call(c.Hash, "{{ .NameABI }}", contract.{{ .CallFlag }}
{{- range $arg := .Arguments -}}, {{.Name}}{{end}}).({{ .ReturnType }})
{{- else -}} {
contract.Call(c.Hash, "{{ .NameABI }}", contract.{{ .CallFlag }}
{{- range $arg := .Arguments -}}, {{.Name}}{{end}})
{{- end}}
}
{{- end -}}
// Code generated by neo-go contract generate-wrapper --manifest <file.json> --out <file.go> [--hash <hash>] [--config <config>]; DO NOT EDIT.
// Package {{.PackageName}} contains wrappers for {{.ContractName}} contract.
package {{.PackageName}}
@ -42,10 +56,25 @@ import (
{{range $m := .Imports}} "{{ $m }}"
{{end}})
{{if .Hash}}
// Hash contains contract hash in big-endian form.
const Hash = "{{ .Hash }}"
{{range $m := .Methods}}
{{template "FUNCTION" $m }}
{{end}}
{{else}}
// Contract represents the {{.ContractName}} smart contract.
type Contract struct {
Hash interop.Hash160
}
// NewContract returns a new Contract instance with the specified hash.
func NewContract(hash interop.Hash160) Contract {
return Contract{Hash: hash}
}
{{range $m := .Methods}}
{{template "METHOD" $m }}
{{end}}
{{end}}`
type (
@ -127,7 +156,9 @@ func NewConfig() Config {
func Generate(cfg Config) error {
ctr := TemplateFromManifest(cfg, scTypeToGo)
ctr.Imports = append(ctr.Imports, "github.com/nspcc-dev/neo-go/pkg/interop/contract")
ctr.Imports = append(ctr.Imports, "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal")
if ctr.Hash != "" {
ctr.Imports = append(ctr.Imports, "github.com/nspcc-dev/neo-go/pkg/interop/neogointernal")
}
sort.Strings(ctr.Imports)
return FExecute(srcTemplate, cfg.Output, ctr)