func (this *Eval) evalDate(stmt *ast.Stmt) (*ast.Stmt, error) {
format := stmt.Value.(string)
t := stdtime.Now()
stmt.Value = time.Format(t, format)
stmt.Prop["time"] = t
stmt.Prop["format"] = format
return stmt, nil
}
func (this *Eval) evalDuration(stmt *ast.Stmt) (*ast.Stmt, error) {
format := stmt.Value.(string)
d, err := stdtime.ParseDuration(format)
if err != nil {
return nil, fmt.Errorf("invalid duration: %s", format)
}
stmt.Value = d
stmt.Prop["format"] = format
return stmt, nil
}