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6c8b023298
The wrapper code is adapted from the swarm/services/chequebook package
with the following mostly cosmetic changes:
* The code now uses the new Go API interfaces to query balances. Some
minor functional changes were required to make this work.
* The package no longer depends on swarm/services/swap/swap. References
to swap.Promise are replaced by interface{}, the base type of Promise.
This is temporary.
* The contract wrapper has been regenerated with latest abigen
and solc v0.3.6.
* There is a new generator that creates the 'deployed code' variable.
* Documentation comments now follow the recommended godoc style.
* [CHEQUEBOOK] log prefixes are gone.
* LGPL license headers have been added to all files.
69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package chequebook
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import (
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"errors"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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)
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const Version = "1.0"
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var errNoChequebook = errors.New("no chequebook")
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type Api struct {
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chequebookf func() *Chequebook
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}
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func NewApi(ch func() *Chequebook) *Api {
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return &Api{ch}
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}
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func (self *Api) Balance() (string, error) {
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ch := self.chequebookf()
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if ch == nil {
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return "", errNoChequebook
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}
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return ch.Balance().String(), nil
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}
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func (self *Api) Issue(beneficiary common.Address, amount *big.Int) (cheque *Cheque, err error) {
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ch := self.chequebookf()
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if ch == nil {
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return nil, errNoChequebook
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}
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return ch.Issue(beneficiary, amount)
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}
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func (self *Api) Cash(cheque *Cheque) (txhash string, err error) {
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ch := self.chequebookf()
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if ch == nil {
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return "", errNoChequebook
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}
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return ch.Cash(cheque)
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}
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func (self *Api) Deposit(amount *big.Int) (txhash string, err error) {
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ch := self.chequebookf()
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if ch == nil {
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return "", errNoChequebook
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}
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return ch.Deposit(amount)
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}
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