// and value.String() for the flag's value.
func CountFlagValue(prefix string, flagSet flag.FlagSet, flagName string) {
	// TODO(matloob): Maybe pass in a list of flagNames if we end up counting
	// values for more than one?
	// TODO(matloob): Add this to x/telemetry?
	flagSet.Visit(func(f *flag.Flag) {
		if f.Name == flagName {
			counter.New(prefix + f.Name + ":" + f.Value.String()).Inc()
		}
	})
}

//go:noescape
func Storeuintptr(ptr *uintptr, new uintptr)

//go:noescape
func Loaduintptr(ptr *uintptr) uintptr

//go:noescape
func Loaduint(ptr *uint) uint

// TODO(matloob): Should these functions have the go:noescape annotation?

//go:noescape
func Loadint32(ptr *int32) int32

//go:noescape
func Loadint64(ptr *int64) int64

//go:noescape

// A label overwrites a prior label with the same key.
func WithLabels(ctx context.Context, labels LabelSet) context.Context {
	parentLabels := labelValue(ctx)
	childLabels := make(labelMap, len(parentLabels))
	// TODO(matloob): replace the map implementation with something
	// more efficient so creating a child context WithLabels doesn't need
	// to clone the map.
	for k, v := range parentLabels {
		childLabels[k] = v
	}

			// return an error to make the module hash invalid.
			// Symlink directories in modules are tricky, so we won't index
			// modules that contain them.
			// TODO(matloob): perhaps don't return this error if the symlink leads to
			// a directory with a go.mod file.
			return ErrNotIndexed
		}
	}
	return nil
}