Implement console.count/countReset (#31635)

* Implement console.count/countReset

* Address review comment

Signed-off-by: syvb <me@iter.ca>

---------

Signed-off-by: syvb <me@iter.ca>

1 files changed, 17 insertions, 0 deletions

diff --git a/components/script/dom/console.rs b/components/script/dom/console.rs
index f8547c449ff..737bb35b926 100644
--- a/components/script/dom/console.rs
+++ b/components/script/dom/console.rs
@@ -296,4 +296,21 @@ impl Console {
     pub fn GroupEnd(global: &GlobalScope) {
         global.pop_console_group();
     }
+
+    /// <https://console.spec.whatwg.org/#count>
+    pub fn Count(global: &GlobalScope, label: DOMString) {
+        let count = global.increment_console_count(&label);
+        let message = DOMString::from(format!("{label}: {count}"));
+        console_message(global, message, LogLevel::Log);
+    }
+
+    /// <https://console.spec.whatwg.org/#countreset>
+    pub fn CountReset(global: &GlobalScope, label: DOMString) {
+        if global.reset_console_count(&label).is_err() {
+            Self::internal_warn(
+                global,
+                DOMString::from(format!("Counter “{label}” doesn’t exist.")),
+            )
+        }
+    }
 }