diff options
Diffstat (limited to 'ffi/src/lib.rs')
| -rw-r--r-- | ffi/src/lib.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/ffi/src/lib.rs b/ffi/src/lib.rs index 3dd0a252..5c813a37 100644 --- a/ffi/src/lib.rs +++ b/ffi/src/lib.rs @@ -143,6 +143,22 @@ macro_rules! ffi_free { /* Parameter handling. */ +/// Transfers ownership from C to Rust. +/// +/// # Panics +/// +/// Panics if called with NULL. +macro_rules! ffi_param_move { + ($name:expr) => {{ + if $name.is_null() { + panic!("Parameter {} is NULL", stringify!($name)); + } + unsafe { + Box::from_raw($name) + } + }}; +} + /// Transfers a reference from C to Rust. /// /// # Panics |