3 files changed, 13 insertions, 0 deletions
diff --git a/crates/shirabe/src/io/buffer_io.rs b/crates/shirabe/src/io/buffer_io.rs
index af7ae61..72c452b 100644
--- a/crates/shirabe/src/io/buffer_io.rs
+++ b/crates/shirabe/src/io/buffer_io.rs
@@ -273,6 +273,10 @@ impl crate::io::IOInterface for BufferIO {
     fn as_base_io_mut(&mut self) -> Option<&mut dyn crate::io::BaseIO> {
         Some(self)
     }
+
+    fn enable_debugging(&mut self, start_time: f64) {
+        self.inner.enable_debugging(start_time)
+    }
 }
 
 impl crate::io::BaseIO for BufferIO {
diff --git a/crates/shirabe/src/io/console_io.rs b/crates/shirabe/src/io/console_io.rs
index 210dbdc..eb7ab31 100644
--- a/crates/shirabe/src/io/console_io.rs
+++ b/crates/shirabe/src/io/console_io.rs
@@ -678,6 +678,10 @@ impl IOInterface for ConsoleIO {
     fn as_base_io_mut(&mut self) -> Option<&mut dyn BaseIO> {
         Some(self)
     }
+
+    fn enable_debugging(&mut self, start_time: f64) {
+        self.enable_debugging(start_time)
+    }
 }
 
 impl BaseIO for ConsoleIO {
diff --git a/crates/shirabe/src/io/io_interface.rs b/crates/shirabe/src/io/io_interface.rs
index 1ae8d28..af3f688 100644
--- a/crates/shirabe/src/io/io_interface.rs
+++ b/crates/shirabe/src/io/io_interface.rs
@@ -155,6 +155,11 @@ pub trait IOInterface: IOInterfaceImmutable + IOInterfaceMutable {
     fn as_base_io_mut(&mut self) -> Option<&mut dyn crate::io::BaseIO> {
         None
     }
+
+    // PHP: only `ConsoleIO::enableDebugging` exists; the interface itself does not declare it.
+    fn enable_debugging(&mut self, _start_time: f64) {
+        panic!("enable_debugging is only supported by ConsoleIO/BufferIO");
+    }
 }
 
 // Shared-ownership handle for a PHP IO instance (reference semantics). It