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errors.go
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/
errors.go
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/**
* @file
* @copyright defined in meycoin/LICENSE.txt
*/
package contract
type ErrSystem interface {
System() bool
}
func isSystemError(err error) bool {
sErr, ok := err.(ErrSystem)
return ok && sErr.System()
}
type vmStartError struct{}
func (e *vmStartError) Error() string {
return "cannot start a VM"
}
func (e *vmStartError) System() bool {
return e != nil
}
var ErrVmStart = &vmStartError{}
type DbSystemError struct {
error
}
func newDbSystemError(e error) error {
return &DbSystemError{e}
}
func (e *DbSystemError) System() bool {
return e != nil
}
type VmSystemError struct {
error
}
func newVmSystemError(e error) error {
return &VmSystemError{e}
}
func (e *VmSystemError) System() bool {
return e != nil
}
type VmTimeoutError struct{}
func (e *VmTimeoutError) Error() string {
return "contract timeout"
}
func (e *VmTimeoutError) System() bool {
return e != nil
}
type ErrRuntime interface {
Runtime() bool
}
func IsRuntimeError(err error) bool {
rErr, ok := err.(ErrRuntime)
return ok && rErr.Runtime()
}
type vmError struct {
error
}
func newVmError(err error) error {
return &vmError{err}
}
func (e *vmError) Runtime() bool {
return e != nil
}
//Governance Errors
type ErrGovEnt interface {
GovEnt() bool
}
type GovEntErr struct {
error
}
func NewGovEntErr(e error) error {
return &GovEntErr{e}
}
func (e *GovEntErr) GovEnt() bool {
return e != nil
}
func (e *GovEntErr) Runtime() bool {
return e != nil
}
func IsGovEntErr(err error) bool {
rErr, ok := err.(ErrGovEnt)
return ok && rErr.GovEnt()
}