forked from DNAProject/DNA
-
Notifications
You must be signed in to change notification settings - Fork 1
/
context.go
53 lines (48 loc) · 1.81 KB
/
context.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
/*
* Copyright (C) 2018 The DNA Authors
* This file is part of The DNA library.
*
* The DNA 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 DNA 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 DNA. If not, see <http://www.gnu.org/licenses/>.
*/
package context
import (
"github.com/dnaproject2/DNA/common"
"github.com/dnaproject2/DNA/smartcontract/event"
)
// ContextRef is a interface of smart context
// when need call a contract, push current context to smart contract contexts
// when execute smart contract finish, pop current context from smart contract contexts
// when need to check authorization, use CheckWitness
// when smart contract execute trigger event, use PushNotifications push it to smart contract notifications
// when need to invoke a smart contract, use AppCall to invoke it
type ContextRef interface {
PushContext(context *Context)
CurrentContext() *Context
CallingContext() *Context
EntryContext() *Context
PopContext()
CheckWitness(address common.Address) bool
PushNotifications(notifications []*event.NotifyEventInfo)
NewExecuteEngine(code []byte) (Engine, error)
CheckUseGas(gas uint64) bool
CheckExecStep() bool
}
type Engine interface {
Invoke() (interface{}, error)
}
// Context describe smart contract execute context struct
type Context struct {
ContractAddress common.Address
Code []byte
}