package template

// Data is some data to inject into the template
type Data map[string]interface{}

// DataExtFunc is some extensions to a template's data
type DataExtFunc func(data Data) (Data, error)

// Extend returns a template's data with the given extensions
func Extend(data Data, extensions ...DataExtFunc) (Data, error) {
	var err error
	for _, ext := range extensions {
		data, err = ext(data)
		if err != nil {
			return nil, err
		}
	}
	return data, nil
}