1 files changed, 76 insertions, 0 deletions
diff --git a/src/verbose.rs b/src/verbose.rs
new file mode 100644
index 0000000..8f23c03
--- /dev/null
+++ b/src/verbose.rs
@@ -0,0 +1,76 @@
+#[cfg(feature = "verbose")]
+use std;
+
+#[cfg(feature = "verbose")]
+pub static mut STACK: Option<Vec<(String, std::time::Instant, std::time::Instant)>> = None;
+
+#[cfg(feature = "verbose")]
+macro_rules! start_talking_about_time {
+    ($category:expr) => (
+        use std;
+        use verbose;
+        unsafe {
+            let stack = verbose::STACK.get_or_insert_with(|| Vec::new());
+            let len = stack.len();
+            let now = std::time::Instant::now();
+            let category = $category;
+            stack.push((String::from(category), now.clone(), now.clone()));
+            eprintln!("{}starting {}", " ".repeat(len), category);
+        }
+    )
+}
+
+#[cfg(feature = "verbose")]
+macro_rules! talk_about_time {
+    ($what:expr) => (
+        unsafe {
+            let stack = verbose::STACK.get_or_insert_with(|| Vec::new());
+            let len = stack.len();
+            let last = stack.last_mut().unwrap();
+            let elapsed = last.1.elapsed();
+            eprintln!(
+                "{}{}: {} took {}.{:09}s",
+                " ".repeat(len),
+                last.0,
+                $what,
+                elapsed.as_secs(),
+                elapsed.subsec_nanos()
+            );
+            last.1 = std::time::Instant::now();
+        }
+    )
+}
+
+#[cfg(feature = "verbose")]
+macro_rules! stop_talking_about_time {
+    () => (
+        unsafe {
+            let stack = verbose::STACK.get_or_insert_with(|| Vec::new());
+            let last = stack.pop().unwrap();
+            let elapsed = last.2.elapsed();
+            let len = stack.len();
+            eprintln!(
+                "{}ending {} (total {}.{:09}s)",
+                " ".repeat(len),
+                last.0,
+                elapsed.as_secs(),
+                elapsed.subsec_nanos()
+            );
+        }
+    )
+}
+
+#[cfg(not(feature = "verbose"))]
+macro_rules! start_talking_about_time {
+    ($e:expr) => ()
+}
+
+#[cfg(not(feature = "verbose"))]
+macro_rules! talk_about_time {
+    ($e:expr) => ()
+}
+
+#[cfg(not(feature = "verbose"))]
+macro_rules! stop_talking_about_time {
+    () => ()
+}