// Location returns zero values if e has no stacktrace
func Location(e error) (file string, line int) {
s := Stack(e)
if len(s) > 0 {
sf := goerr.NewStackFrame(s[0])
return sf.File, sf.LineNumber
}
return "", 0
}
func convertStack(stack []uintptr) []errors.StackFrame {
frames := make([]errors.StackFrame, len(stack))
for i, pc := range stack {
// TODO: Handle panics correctly, as described in the
// docs for runtime.Callers().
frames[i] = errors.NewStackFrame(pc)
}
return frames
}
// StackFrames returns an array of errors.StackFrames containing information
// about the stack.
func (err *StackTraceError) StackFrames() []errors.StackFrame {
if err.frames == nil {
err.frames = make([]errors.StackFrame, len(err.stack))
for i, pc := range err.stack {
err.frames[i] = errors.NewStackFrame(pc)
}
}
return err.frames
}
// Stacktrace returns the error's stacktrace as a string formatted
// the same way as golangs runtime package.
// If e has no stacktrace, returns an empty string.
func Stacktrace(e error) string {
s := Stack(e)
if len(s) > 0 {
buf := bytes.Buffer{}
for _, fp := range s {
sf := goerr.NewStackFrame(fp)
buf.WriteString(sf.String())
}
return buf.String()
}
return ""
}