1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167
/// Prints to the log port #0, if the debug probe is connected. /// /// Equivalent to the [`println!`] macro except that a newline is not printed at /// the end of the message. /// /// Note that log port is buffered so it may be necessary to use /// [`log::flush`](crate::log::flush) to ensure the output is emitted /// immediately. /// /// Use `print!` only for the primary output of your program. Use [`eprint!`] /// instead to print error and progress messages. /// /// # Examples /// /// ``` /// use drone_core::{log, print}; /// /// print!("this "); /// print!("will "); /// print!("be "); /// print!("on "); /// print!("the "); /// print!("same "); /// print!("line "); /// /// log::flush(); /// /// print!("this string has a newline, why not choose println! instead?\n"); /// /// log::flush(); /// ``` #[macro_export] macro_rules! print { ($str:expr) => { if $crate::log::stdout().is_enabled() { $crate::log::write_str($crate::log::STDOUT_PORT, $str); } }; ($($arg:tt)*) => { if $crate::log::stdout().is_enabled() { $crate::log::write_fmt($crate::log::STDOUT_PORT, format_args!($($arg)*)); } }; } /// Prints to the log port #0, with a newline, if a debug probe is connected. /// /// Use the `format!` syntax to write data to the standard output. See /// [`core::fmt`] for more information. /// /// Use `println!` only for the primary output of your program. Use /// [`eprintln!`] instead to print error and progress messages. /// /// # Examples /// /// ``` /// use drone_core::println; /// /// println!(); // prints just a newline /// println!("hello there!"); /// println!("format {} arguments", "some"); /// ``` #[macro_export] macro_rules! println { () => { $crate::print!("\n"); }; ($fmt:expr) => { $crate::print!(concat!($fmt, "\n")); }; ($fmt:expr, $($arg:tt)*) => { $crate::print!(concat!($fmt, "\n"), $($arg)*); }; } /// Prints to the log port #1, if a debug probe is connected. /// /// Equivalent to the [`print!`] macro, except that output goes to the port #1 /// instead of #0. See [`print!`] for example usage. /// /// Use `eprint!` only for error and progress messages. Use `print!` instead for /// the primary output of your program. /// /// # Examples /// /// ``` /// eprint!("Error: Could not complete task"); /// ``` #[macro_export] macro_rules! eprint { ($str:expr) => { if $crate::log::stderr().is_enabled() { $crate::log::write_str($crate::log::STDERR_PORT, $str); } }; ($($arg:tt)*) => { if $crate::log::stderr().is_enabled() { $crate::log::write_fmt($crate::log::STDERR_PORT, format_args!($($arg)*)); } }; } /// Prints to the log port #1, with a newline, if a debug probe is connected. /// /// Equivalent to the [`println!`] macro, except that output goes to the port #1 /// instead of #0. See [`println!`] for example usage. /// /// Use `eprintln!` only for error and progress messages. Use `println!` instead /// for the primary output of your program. /// /// # Examples /// /// ``` /// eprintln!("Error: Could not complete task"); /// ``` #[macro_export] macro_rules! eprintln { () => { $crate::eprint!("\n"); }; ($fmt:expr) => { $crate::eprint!(concat!($fmt, "\n")); }; ($fmt:expr, $($arg:tt)*) => { $crate::eprint!(concat!($fmt, "\n"), $($arg)*); }; } /// Prints and returns the value of a given expression for quick and dirty /// debugging. /// /// The macro works by using the `Debug` implementation of the type of the given /// expression to print the value to the log port #1 along with the source /// location of the macro invocation as well as the source code of the /// expression. /// /// Invoking the macro on an expression moves and takes ownership of it before /// returning the evaluated expression unchanged. If the type of the expression /// does not implement `Copy` and you don't want to give up ownership, you can /// instead borrow with `dbg!(&expr)` for some expression `expr`. /// /// # Examples /// /// ``` /// let a = 2; /// let b = dbg!(a * 2) + 1; /// // ^-- prints: [src/main.rs:2] a * 2 = 4 /// assert_eq!(b, 5); /// ``` #[macro_export] macro_rules! dbg { () => { $crate::eprintln!("[{}:{}]", file!(), line!()); }; ($val:expr) => { match $val { tmp => { $crate::eprintln!("[{}:{}] {} = {:#?}", file!(), line!(), stringify!($val), &tmp); tmp } } }; ($val:expr,) => { $crate::dbg!($val) }; ($($val:expr),+ $(,)?) => { ($($crate::dbg!($val)),+,) }; }