69 lines
1.3 KiB
Go
69 lines
1.3 KiB
Go
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package merry
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import (
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"bytes"
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"fmt"
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"runtime"
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)
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// Location returns zero values if e has no stacktrace
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func Location(e error) (file string, line int) {
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s := Stack(e)
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if len(s) > 0 {
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fnc := runtime.FuncForPC(s[0])
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if fnc != nil {
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return fnc.FileLine(s[0])
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}
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}
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return "", 0
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}
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// SourceLine returns the string representation of
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// Location's result or an empty string if there's
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// no stracktrace.
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func SourceLine(e error) string {
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file, line := Location(e)
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if line != 0 {
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return fmt.Sprintf("%s:%d", file, line)
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}
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return ""
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}
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// Stacktrace returns the error's stacktrace as a string formatted
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// the same way as golangs runtime package.
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// If e has no stacktrace, returns an empty string.
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func Stacktrace(e error) string {
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s := Stack(e)
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if len(s) > 0 {
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buf := bytes.Buffer{}
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for _, fp := range s {
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fnc := runtime.FuncForPC(fp)
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if fnc != nil {
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f, l := fnc.FileLine(fp)
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buf.WriteString(fnc.Name())
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buf.WriteString(fmt.Sprintf("\n\t%s:%d\n", f, l))
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}
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}
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return buf.String()
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}
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return ""
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}
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// Details returns e.Error() and e's stacktrace and user message, if set.
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func Details(e error) string {
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if e == nil {
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return ""
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}
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msg := Message(e)
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userMsg := UserMessage(e)
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if userMsg != "" {
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msg = fmt.Sprintf("%s\n\nUser Message: %s", msg, userMsg)
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}
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s := Stacktrace(e)
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if s != "" {
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msg += "\n\n" + s
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}
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return msg
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}
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