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// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
// Contains perverted wrappers to allow crossing over empty interfaces.
package geth
import (
"errors"
"math/big"
"github.com/ethereum/go-ethereum/common"
)
// Interface represents a wrapped version of Go's interface{}, with the capacity
// to store arbitrary data types.
//
// Since it's impossible to get the arbitrary-ness converted between Go and mobile
// platforms, we're using explicit getters and setters for the conversions. There
// is of course no point in enumerating everything, just enough to support the
// contract bindins requiring client side generated code.
type Interface struct {
object interface{}
}
// NewInterface creates a new empty interface that can be used to pass around
// generic types.
func NewInterface() *Interface {
return new(Interface)
}
func (i *Interface) SetBool(b bool) { i.object = &b }
func (i *Interface) SetBools(bs []bool) { i.object = &bs }
func (i *Interface) SetString(str string) { i.object = &str }
func (i *Interface) SetStrings(strs *Strings) { i.object = &strs.strs }
func (i *Interface) SetBinary(binary []byte) { b := common.CopyBytes(binary); i.object = &b }
func (i *Interface) SetBinaries(binaries [][]byte) { i.object = &binaries }
func (i *Interface) SetAddress(address *Address) { i.object = &address.address }
func (i *Interface) SetAddresses(addrs *Addresses) { i.object = &addrs.addresses }
func (i *Interface) SetHash(hash *Hash) { i.object = &hash.hash }
func (i *Interface) SetHashes(hashes *Hashes) { i.object = &hashes.hashes }
func (i *Interface) SetInt8(n int8) { i.object = &n }
func (i *Interface) SetInt16(n int16) { i.object = &n }
func (i *Interface) SetInt32(n int32) { i.object = &n }
func (i *Interface) SetInt64(n int64) { i.object = &n }
func (i *Interface) SetUint8(bigint *BigInt) { n := uint8(bigint.bigint.Uint64()); i.object = &n }
func (i *Interface) SetUint16(bigint *BigInt) { n := uint16(bigint.bigint.Uint64()); i.object = &n }
func (i *Interface) SetUint32(bigint *BigInt) { n := uint32(bigint.bigint.Uint64()); i.object = &n }
func (i *Interface) SetUint64(bigint *BigInt) { n := bigint.bigint.Uint64(); i.object = &n }
func (i *Interface) SetBigInt(bigint *BigInt) { i.object = &bigint.bigint }
func (i *Interface) SetBigInts(bigints *BigInts) { i.object = &bigints.bigints }
func (i *Interface) SetDefaultBool() { i.object = new(bool) }
func (i *Interface) SetDefaultBools() { i.object = new([]bool) }
func (i *Interface) SetDefaultString() { i.object = new(string) }
func (i *Interface) SetDefaultStrings() { i.object = new([]string) }
func (i *Interface) SetDefaultBinary() { i.object = new([]byte) }
func (i *Interface) SetDefaultBinaries() { i.object = new([][]byte) }
func (i *Interface) SetDefaultAddress() { i.object = new(common.Address) }
func (i *Interface) SetDefaultAddresses() { i.object = new([]common.Address) }
func (i *Interface) SetDefaultHash() { i.object = new(common.Hash) }
func (i *Interface) SetDefaultHashes() { i.object = new([]common.Hash) }
func (i *Interface) SetDefaultInt8() { i.object = new(int8) }
func (i *Interface) SetDefaultInt16() { i.object = new(int16) }
func (i *Interface) SetDefaultInt32() { i.object = new(int32) }
func (i *Interface) SetDefaultInt64() { i.object = new(int64) }
func (i *Interface) SetDefaultUint8() { i.object = new(uint8) }
func (i *Interface) SetDefaultUint16() { i.object = new(uint16) }
func (i *Interface) SetDefaultUint32() { i.object = new(uint32) }
func (i *Interface) SetDefaultUint64() { i.object = new(uint64) }
func (i *Interface) SetDefaultBigInt() { i.object = new(*big.Int) }
func (i *Interface) SetDefaultBigInts() { i.object = new([]*big.Int) }
func (i *Interface) GetBool() bool { return *i.object.(*bool) }
func (i *Interface) GetBools() []bool { return *i.object.(*[]bool) }
func (i *Interface) GetString() string { return *i.object.(*string) }
func (i *Interface) GetStrings() *Strings { return &Strings{*i.object.(*[]string)} }
func (i *Interface) GetBinary() []byte { return *i.object.(*[]byte) }
func (i *Interface) GetBinaries() [][]byte { return *i.object.(*[][]byte) }
func (i *Interface) GetAddress() *Address { return &Address{*i.object.(*common.Address)} }
func (i *Interface) GetAddresses() *Addresses { return &Addresses{*i.object.(*[]common.Address)} }
func (i *Interface) GetHash() *Hash { return &Hash{*i.object.(*common.Hash)} }
func (i *Interface) GetHashes() *Hashes { return &Hashes{*i.object.(*[]common.Hash)} }
func (i *Interface) GetInt8() int8 { return *i.object.(*int8) }
func (i *Interface) GetInt16() int16 { return *i.object.(*int16) }
func (i *Interface) GetInt32() int32 { return *i.object.(*int32) }
func (i *Interface) GetInt64() int64 { return *i.object.(*int64) }
func (i *Interface) GetUint8() *BigInt {
return &BigInt{new(big.Int).SetUint64(uint64(*i.object.(*uint8)))}
}
func (i *Interface) GetUint16() *BigInt {
return &BigInt{new(big.Int).SetUint64(uint64(*i.object.(*uint16)))}
}
func (i *Interface) GetUint32() *BigInt {
return &BigInt{new(big.Int).SetUint64(uint64(*i.object.(*uint32)))}
}
func (i *Interface) GetUint64() *BigInt {
return &BigInt{new(big.Int).SetUint64(*i.object.(*uint64))}
}
func (i *Interface) GetBigInt() *BigInt { return &BigInt{*i.object.(**big.Int)} }
func (i *Interface) GetBigInts() *BigInts { return &BigInts{*i.object.(*[]*big.Int)} }
// Interfaces is a slices of wrapped generic objects.
type Interfaces struct {
objects []interface{}
}
// NewInterfaces creates a slice of uninitialized interfaces.
func NewInterfaces(size int) *Interfaces {
return &Interfaces{
objects: make([]interface{}, size),
}
}
// Size returns the number of interfaces in the slice.
func (i *Interfaces) Size() int {
return len(i.objects)
}
// Get returns the bigint at the given index from the slice.
func (i *Interfaces) Get(index int) (iface *Interface, _ error) {
if index < 0 || index >= len(i.objects) {
return nil, errors.New("index out of bounds")
}
return &Interface{i.objects[index]}, nil
}
// Set sets the big int at the given index in the slice.
func (i *Interfaces) Set(index int, object *Interface) error {
if index < 0 || index >= len(i.objects) {
return errors.New("index out of bounds")
}
i.objects[index] = object.object
return nil
}
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