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-rw-r--r--vendor/tracing-subscriber-0.3.3/src/macros.rs28
1 files changed, 28 insertions, 0 deletions
diff --git a/vendor/tracing-subscriber-0.3.3/src/macros.rs b/vendor/tracing-subscriber-0.3.3/src/macros.rs
new file mode 100644
index 000000000..81351132f
--- /dev/null
+++ b/vendor/tracing-subscriber-0.3.3/src/macros.rs
@@ -0,0 +1,28 @@
+#[cfg(feature = "std")]
+macro_rules! try_lock {
+ ($lock:expr) => {
+ try_lock!($lock, else return)
+ };
+ ($lock:expr, else $els:expr) => {
+ if let Ok(l) = $lock {
+ l
+ } else if std::thread::panicking() {
+ $els
+ } else {
+ panic!("lock poisoned")
+ }
+ };
+}
+
+macro_rules! feature {
+ (
+ #![$meta:meta]
+ $($item:item)*
+ ) => {
+ $(
+ #[cfg($meta)]
+ #[cfg_attr(docsrs, doc(cfg($meta)))]
+ $item
+ )*
+ }
+}