// redefine.rs // ************************************************************************* // * Copyright (C) 2019 Daniel Mueller (deso@posteo.net) * // * * // * This program is free software: you can redistribute it and/or modify * // * it under the terms of the GNU General Public License as published by * // * the Free Software Foundation, either version 3 of the License, or * // * (at your option) any later version. * // * * // * This program is distributed in the hope that it will be useful, * // * but WITHOUT ANY WARRANTY; without even the implied warranty of * // * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * // * GNU General Public License for more details. * // * * // * You should have received a copy of the GNU General Public License * // * along with this program. If not, see . * // ************************************************************************* // A replacement of the standard println!() macro that requires an // execution context as the first argument and prints to its stdout. macro_rules! println { ($ctx:expr) => { writeln!($ctx.stdout, "") }; ($ctx:expr, $($arg:tt)*) => { writeln!($ctx.stdout, $($arg)*) }; } macro_rules! eprintln { ($ctx:expr) => { writeln!($ctx.stderr, "") }; ($ctx:expr, $($arg:tt)*) => { writeln!($ctx.stderr, $($arg)*) }; }