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doc: explain custom panic message for lo.Must helpers

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This commit is contained in:
Samuel Berthe
2022-07-03 20:59:32 +02:00
parent 4d65679b2d
commit c8a13bbf49
2 changed files with 21 additions and 7 deletions
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errors.go
+7 -3
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@@ -7,7 +7,10 @@ import (
func messageFromMsgAndArgs(msgAndArgs ...interface{}) string {
if len(msgAndArgs) == 1 {
return fmt.Sprintf(msgAndArgs[0].(string))
if msgAsStr, ok := msgAndArgs[0].(string); ok {
return msgAsStr
}
return fmt.Sprintf("%+v", msgAndArgs[0])
}
if len(msgAndArgs) > 1 {
return fmt.Sprintf(msgAndArgs[0].(string), msgAndArgs[1:]...)
@@ -21,18 +24,19 @@ func must(err any, messageArgs ...interface{}) {
return
}
message := messageFromMsgAndArgs(messageArgs...)
switch e := err.(type) {
case bool:
if !e {
message := messageFromMsgAndArgs(messageArgs...)
if message == "" {
message = "not ok"
}
panic(message)
}
case error:
message := messageFromMsgAndArgs(messageArgs...)
if message != "" {
panic(message + ": " + e.Error())
} else {