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feat(c-api) wasm_$name_vec_delete for boxed vec now takes an Option<&mut T>.

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This was already the case for regular vec. This patch applies the same
pattern for boxed vec.

See deec77d2df.
This commit is contained in:
Ivan Enderlin
2020-12-18 10:45:57 +01:00
parent 272b9d13ac
commit 51fe219efb
1 changed files with 12 additions and 12 deletions
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24
lib/c-api/src/wasm_c_api/macros.rs
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@@ -341,21 +341,21 @@ int main() {
See the [`wasm_" $name "_vec_t`] type to get an example."] See the [`wasm_" $name "_vec_t`] type to get an example."]
#[no_mangle] #[no_mangle]
pub unsafe extern "C" fn [<wasm_ $name _vec_delete>](ptr: *mut [<wasm_ $name _vec_t>]) { pub unsafe extern "C" fn [<wasm_ $name _vec_delete>](ptr: Option<&mut [<wasm_ $name _vec_t>]>) {
let vec = &mut *ptr; if let Some(vec) = ptr {
if !vec.data.is_null() {
let data: Vec<*mut [<wasm_ $name _t>]> = Vec::from_raw_parts(vec.data, vec.size, vec.size);
if !vec.data.is_null() { // If the vector has been initialized (we check
let data: Vec<*mut [<wasm_ $name _t>]> = Vec::from_raw_parts(vec.data, vec.size, vec.size); // only the first item), we can transmute items to
// `Box`es.
if vec.size > 0 && !data[0].is_null() {
let _data: Vec<Box<[<wasm_ $name _t>]>> = ::std::mem::transmute(data);
}
// If the vector has been initialized (we check vec.data = ::std::ptr::null_mut();
// only the first item), we can transmute items to vec.size = 0;
// `Box`es.
if vec.size > 0 && !data[0].is_null() {
let _data: Vec<Box<[<wasm_ $name _t>]>> = ::std::mem::transmute(data);
} }
vec.data = ::std::ptr::null_mut();
vec.size = 0;
} }
} }
} }