forked from TrueCloudLab/neoneo-go
49 lines
2.1 KiB
Go
49 lines
2.1 KiB
Go
package trigger
|
|
|
|
import "fmt"
|
|
|
|
//go:generate stringer -type=Type -output=trigger_type_string.go
|
|
|
|
// Type represents trigger type used in C# reference node: https://github.com/neo-project/neo/blob/c64748ecbac3baeb8045b16af0d518398a6ced24/neo/SmartContract/TriggerType.cs#L3
|
|
type Type byte
|
|
|
|
// Viable list of supported trigger type constants.
|
|
const (
|
|
// OnPersist is a trigger type that indicates that script is being invoked
|
|
// internally by the system during block persistence (before transaction
|
|
// processing).
|
|
OnPersist Type = 0x01
|
|
|
|
// PostPersist is a trigger type that indicates that script is being invoked
|
|
// by the system after block persistence (transcation processing) has
|
|
// finished.
|
|
PostPersist Type = 0x02
|
|
|
|
// The verification trigger indicates that the contract is being invoked as a verification function.
|
|
// The verification function can accept multiple parameters, and should return a boolean value that indicates the validity of the transaction or block.
|
|
// The entry point of the contract will be invoked if the contract is triggered by Verification:
|
|
// main(...);
|
|
// The entry point of the contract must be able to handle this type of invocation.
|
|
Verification Type = 0x20
|
|
|
|
// The application trigger indicates that the contract is being invoked as an application function.
|
|
// The application function can accept multiple parameters, change the states of the blockchain, and return any type of value.
|
|
// The contract can have any form of entry point, but we recommend that all contracts should have the following entry point:
|
|
// public byte[] main(string operation, params object[] args)
|
|
// The functions can be invoked by creating an InvocationTransaction.
|
|
Application Type = 0x40
|
|
|
|
// All represents any trigger type.
|
|
All Type = OnPersist | PostPersist | Verification | Application
|
|
)
|
|
|
|
// FromString converts string to trigger Type
|
|
func FromString(str string) (Type, error) {
|
|
triggers := []Type{OnPersist, PostPersist, Verification, Application, All}
|
|
for _, t := range triggers {
|
|
if t.String() == str {
|
|
return t, nil
|
|
}
|
|
}
|
|
return 0, fmt.Errorf("unknown trigger type: %s", str)
|
|
}
|