3064132821
The standard library macros also use a `$($foo:tt)*` for this, so we should probably too. Since eprinln!() already handles trailing commas we don't need to do any special handling, and this fixes parsing with complex expressions as arguments.
95 lines
3.6 KiB
Rust
95 lines
3.6 KiB
Rust
// nih-plug: plugins, but rewritten in Rust
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// Copyright (C) 2022 Robbert van der Helm
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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/// Write something to the STDERR stream.
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///
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/// XXX: I don't think we need all of the log crate just for some simple logging, but maybe consider
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/// integrating some other crate with this function if we need to log to some other place than
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/// STDERR or if it needs to be done in release builds and we should thus try to avoid
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/// allocations.
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#[macro_export]
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macro_rules! nih_log {
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($format:expr $(, $($args:tt)*)?) => (
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eprintln!(concat!("[", file!(), ":", line!(), "] ", $format), $($($args)*)?)
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);
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}
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/// A `debug_assert!()` analogue that prints the error with line number information instead of
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/// panicking.
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///
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/// TODO: Detect if we're running under a debugger, and trigger a break if we are
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#[macro_export]
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macro_rules! nih_debug_assert {
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($cond:expr $(,)?) => (
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if cfg!(debug_assertions) && !$cond {
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nih_log!(concat!("Debug assertion failed: ", stringify!($cond)));
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}
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);
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($cond:expr, $format:expr $(, $($args:tt)*)?) => (
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if cfg!(debug_assertions) && !$cond {
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nih_log!(concat!("Debug assertion failed: ", stringify!($cond), ", ", $format), $($($args)*)?);
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}
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);
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}
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/// An unconditional debug assertion failure, for if the condition has already been checked
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/// elsewhere.
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#[macro_export]
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macro_rules! nih_debug_assert_failure {
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() => (
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if cfg!(debug_assertions) {
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nih_log!("Debug assertion failed");
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}
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);
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($format:expr $(, $($args:tt)*)?) => (
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if cfg!(debug_assertions) {
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nih_log!(concat!("Debug assertion failed: ", $format), $($($args)*)?);
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}
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);
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}
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/// A `debug_assert_eq!()` analogue that prints the error with line number information instead of
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/// panicking.
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#[macro_export]
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macro_rules! nih_debug_assert_eq {
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($left:expr, $right:expr $(,)?) => (
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if cfg!(debug_assertions) && $left != $right {
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nih_log!(concat!("Debug assertion failed: ", stringify!($left), " != ", stringify!($right)));
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}
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);
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(left:expr, $right:expr, $format:expr $(, $($args:tt)*)?) => (
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if cfg!(debug_assertions) && $left != $right {
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nih_log!(concat!("Debug assertion failed: ", stringify!($left), " != ", stringify!($right), ", ", $format), $($($args)*)?);
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}
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);
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}
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/// A `debug_assert_neq!()` analogue that prints the error with line number information instead of
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/// panicking.
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#[macro_export]
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macro_rules! nih_debug_assert_neq {
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($left:expr, $right:expr $(,)?) => (
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if cfg!(debug_assertions) && $left == $right {
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nih_log!(concat!("Debug assertion failed: ", stringify!($left), " == ", stringify!($right)));
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}
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);
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(left:expr, $right:expr, $format:expr $(, $($args:tt)*)?) => (
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if cfg!(debug_assertions) && $left == $right {
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nih_log!(concat!("Debug assertion failed: ", stringify!($left), " == ", stringify!($right), ", ", $format), $($($args)*)?);
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}
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);
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}
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