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utils.go
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/
utils.go
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package errors
import (
"fmt"
)
func WrapCommaError[T any](val T, err error) func(fmtString string, args ...any) (T, error) {
if err != nil {
return func(fmtString string, args ...any) (T, error) {
args = append(args, err)
return val, fmt.Errorf(fmtString+": %w", args...)
}
}
return func(_ string, _ ...any) (T, error) { return val, nil }
}
func MustCommaError[T any](val T, err error) func(fmtString string, args ...any) T {
if err != nil {
return func(fmtString string, args ...any) T {
args = append(args, err)
panic(fmt.Errorf(fmtString+": %w", args...))
}
}
return func(_ string, _ ...any) T { return val }
}
func Wrap[T any](val T, err error, wrapMsgAndArgs ...any) (T, error) {
if err != nil {
if len(wrapMsgAndArgs) > 0 {
wrapMsgAndArgs = append(wrapMsgAndArgs, err)
err = fmt.Errorf(wrapMsgAndArgs[0].(string)+": %w", wrapMsgAndArgs[1:]...)
}
return val, err
}
return val, nil
}
func Must[T any](val T, err error, wrapMsgAndArgs ...any) T {
if err != nil {
if len(wrapMsgAndArgs) > 0 {
wrapMsgAndArgs = append(wrapMsgAndArgs, err)
err = fmt.Errorf(wrapMsgAndArgs[0].(string)+": %w", wrapMsgAndArgs[1:]...)
}
panic(err)
}
return val
}