| 1 | package stacktrace |
| 2 | |
| 3 | import "fmt" |
| 4 | |
| 5 | // String returns a compact representation of the frame: Function (File:Line). |
| 6 | func (f Frame) String() string { |
| 7 | return fmt.Sprintf("%s (%s:%d)", f.Function, f.File, f.Line) |
| 8 | } |
| 9 | |
| 10 | // Format implements [fmt.Formatter] for Trace. |
| 11 | // |
| 12 | // - %v / %s — compact: one line per frame, e.g. "funcName (file.go:42)" |
| 13 | // - %+v — verbose: two lines per frame (function, then indented location) |
| 14 | func (t Trace) Format(s fmt.State, verb rune) { |
| 15 | switch verb { |
| 16 | case 'v': |
| 17 | if s.Flag('+') { |
| 18 | for i, f := range t { |
| 19 | if i > 0 { |
| 20 | fmt.Fprint(s, "\n") |
| 21 | } |
| 22 | fmt.Fprintf(s, "%s\n\t%s:%d", f.Function, f.File, f.Line) |
| 23 | } |
| 24 | return |
| 25 | } |
| 26 | fallthrough |
| 27 | case 's': |
| 28 | for i, f := range t { |
| 29 | if i > 0 { |
| 30 | fmt.Fprint(s, "\n") |
| 31 | } |
| 32 | fmt.Fprintf(s, "%s (%s:%d)", f.Function, f.File, f.Line) |
| 33 | } |
| 34 | } |
| 35 | } |
| 36 | |