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accounts/abi/bind: update v2 template

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Two changes:

New function doesn't return error anymore. It's annoying having to handle
an error there, especially since we know the ABI must be valid (we parsed it in
order to generate the contract).

The new Instance method returns the ContractInstance for use with v2 library functions.
This commit is contained in:
Felix Lange 2025-01-22 13:44:33 +01:00
parent 1bdc820c98
commit d330916f57
1 changed files with 10 additions and 5 deletions
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15
accounts/abi/bind/source2.go.tpl
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@ -8,7 +8,7 @@ import (
"errors"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/accounts/abi/bind/v2"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
)
@ -17,7 +17,6 @@ import (
var (
_ = errors.New
_ = big.NewInt
_ = bind.Bind
_ = common.Big1
_ = types.BloomLookup
_ = abi.ConvertType
@ -55,14 +54,20 @@ var (
}
// New{{.Type}} creates a new instance of {{.Type}}.
func New{{.Type}}() (*{{.Type}}, error) {
func New{{.Type}}() *{{.Type}} {
parsed, err := {{.Type}}MetaData.GetAbi()
if err != nil {
return nil, err
panic(errors.New("invalid ABI: " + err.Error()))
}
return &{{.Type}}{abi: *parsed}, nil
return &{{.Type}}{abi: *parsed}
}
// Instance creates a wrapper for a deployed contract instance at the given address.
// Use this to create the instance object passed to abigen v2 library functions Call, Transact, etc.
func (c *{{.Type}}) Instance(backend bind.ContractBackend, addr common.Address) bind.ContractInstance {
return bind.NewContractInstance(backend, addr, c.abi)
}
{{ if .Constructor.Inputs }}
func ({{ decapitalise $contract.Type}} *{{$contract.Type}}) PackConstructor({{range .Constructor.Inputs}} {{.Name}} {{bindtype .Type $structs}}, {{end}}) []byte {
res, _ := {{ decapitalise $contract.Type}}.abi.Pack("" {{range .Constructor.Inputs}}, {{.Name}}{{end}})