github.com/ethereumproject/go-ethereum@v5.5.2+incompatible/accounts/abi/bind/backends/nil.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package backends
    18  
    19  import (
    20  	"math/big"
    21  
    22  	"github.com/ethereumproject/go-ethereum/accounts/abi/bind"
    23  	"github.com/ethereumproject/go-ethereum/common"
    24  	"github.com/ethereumproject/go-ethereum/core/types"
    25  )
    26  
    27  // This nil assignment ensures compile time that nilBackend implements bind.ContractBackend.
    28  var _ bind.ContractBackend = (*nilBackend)(nil)
    29  
    30  // nilBackend implements bind.ContractBackend, but panics on any method call.
    31  // Its sole purpose is to support the binding tests to construct the generated
    32  // wrappers without calling any methods on them.
    33  type nilBackend struct{}
    34  
    35  func (*nilBackend) ContractCall(common.Address, []byte, bool) ([]byte, error) {
    36  	panic("not implemented")
    37  }
    38  func (*nilBackend) EstimateGasLimit(common.Address, *common.Address, *big.Int, []byte) (*big.Int, error) {
    39  	panic("not implemented")
    40  }
    41  func (*nilBackend) HasCode(common.Address, bool) (bool, error)         { panic("not implemented") }
    42  func (*nilBackend) SuggestGasPrice() (*big.Int, error)                 { panic("not implemented") }
    43  func (*nilBackend) PendingAccountNonce(common.Address) (uint64, error) { panic("not implemented") }
    44  func (*nilBackend) SendTransaction(*types.Transaction) error           { panic("not implemented") }
    45  
    46  // NewNilBackend creates a new binding backend that can be used for instantiation
    47  // but will panic on any invocation. Its sole purpose is to help testing.
    48  func NewNilBackend() bind.ContractBackend {
    49  	return new(nilBackend)
    50  }