diff options
Diffstat (limited to 'crates/shirabe/src/io/io_interface.rs')
| -rw-r--r-- | crates/shirabe/src/io/io_interface.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/crates/shirabe/src/io/io_interface.rs b/crates/shirabe/src/io/io_interface.rs index e33cea2..1ae8d28 100644 --- a/crates/shirabe/src/io/io_interface.rs +++ b/crates/shirabe/src/io/io_interface.rs @@ -151,6 +151,10 @@ pub trait IOInterfaceMutable { // `dyn IOInterface`; its vtable carries both the immutable and mutable methods. pub trait IOInterface: IOInterfaceImmutable + IOInterfaceMutable { fn as_any(&self) -> &dyn std::any::Any; + + fn as_base_io_mut(&mut self) -> Option<&mut dyn crate::io::BaseIO> { + None + } } // Shared-ownership handle for a PHP IO instance (reference semantics). It |