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error.go
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error.go
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package aerrors
import (
"fmt"
"github.com/filecoin-project/specs-actors/actors/runtime/exitcode"
"golang.org/x/xerrors"
)
func IsFatal(err ActorError) bool {
return err != nil && err.IsFatal()
}
func RetCode(err ActorError) exitcode.ExitCode {
if err == nil {
return 0
}
return err.RetCode()
}
type internalActorError interface {
ActorError
FormatError(p xerrors.Printer) (next error)
Unwrap() error
}
type ActorError interface {
error
IsFatal() bool
RetCode() exitcode.ExitCode
}
type actorError struct {
fatal bool
retCode exitcode.ExitCode
msg string
frame xerrors.Frame
err error
}
func (e *actorError) IsFatal() bool {
return e.fatal
}
func (e *actorError) RetCode() exitcode.ExitCode {
return e.retCode
}
func (e *actorError) Error() string {
return fmt.Sprint(e)
}
func (e *actorError) Format(s fmt.State, v rune) { xerrors.FormatError(e, s, v) }
func (e *actorError) FormatError(p xerrors.Printer) (next error) {
p.Print(e.msg)
if e.fatal {
p.Print(" (FATAL)")
} else {
p.Printf(" (RetCode=%d)", e.retCode)
}
e.frame.Format(p)
return e.err
}
func (e *actorError) Unwrap() error {
return e.err
}
var _ internalActorError = (*actorError)(nil)