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script: Mark as unsafe multiple array_buffer_view_to_xxx functions that take a raw JSObject pointer.

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Emilio Cobos Álvarez 2016-09-17 13:59:42 -07:00
parent ea8f115b8c
commit 602246a14c
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2 changed files with 44 additions and 28 deletions
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40
components/script/dom/bindings/conversions.rs
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@ -532,9 +532,11 @@ unsafe impl ArrayBufferViewContents for f64 {
}
}
/// Returns a mutable slice of the Array Buffer View data, viewed as T, without checking the real
/// type of it.
pub unsafe fn array_buffer_view_data<'a, T: ArrayBufferViewContents>(abv: *mut JSObject) -> Option<&'a mut [T]> {
/// Returns a mutable slice of the Array Buffer View data, viewed as T, without
/// checking the real type of it.
pub unsafe fn array_buffer_view_data<'a, T>(abv: *mut JSObject) -> Option<&'a mut [T]>
where T: ArrayBufferViewContents
{
assert!(!abv.is_null());
let mut byte_length = 0;
@ -548,17 +550,19 @@ pub unsafe fn array_buffer_view_data<'a, T: ArrayBufferViewContents>(abv: *mut J
Some(slice::from_raw_parts_mut(ptr as *mut T, byte_length as usize / mem::size_of::<T>()))
}
/// Returns a copy of the ArrayBufferView data, viewed as T, without checking the real type of it.
pub fn array_buffer_view_to_vec<T: ArrayBufferViewContents>(abv: *mut JSObject) -> Option<Vec<T>> {
unsafe {
array_buffer_view_data(abv).map(|data| data.to_vec())
}
/// Returns a copy of the ArrayBufferView data, viewed as T, without checking
/// the real type of it.
pub unsafe fn array_buffer_view_to_vec<T>(abv: *mut JSObject) -> Option<Vec<T>>
where T: ArrayBufferViewContents
{
array_buffer_view_data(abv).map(|data| data.to_vec())
}
/// Returns a mutable slice of the Array Buffer View data, viewed as T, checking that the real type
/// of it is ty.
pub unsafe fn array_buffer_view_data_checked<'a, T: ArrayBufferViewContents>(abv: *mut JSObject)
-> Option<&'a mut [T]> {
/// Returns a mutable slice of the Array Buffer View data, viewed as T, checking
/// that the real type of it is ty.
pub unsafe fn array_buffer_view_data_checked<'a, T>(abv: *mut JSObject) -> Option<&'a mut [T]>
where T: ArrayBufferViewContents
{
array_buffer_view_data::<T>(abv).and_then(|data| {
if T::is_type_compatible(JS_GetArrayBufferViewType(abv)) {
Some(data)
@ -568,12 +572,12 @@ pub unsafe fn array_buffer_view_data_checked<'a, T: ArrayBufferViewContents>(abv
})
}
/// Returns a copy of the ArrayBufferView data, viewed as T, checking that the real type
/// of it is ty.
pub fn array_buffer_view_to_vec_checked<T: ArrayBufferViewContents>(abv: *mut JSObject) -> Option<Vec<T>> {
unsafe {
array_buffer_view_data_checked(abv).map(|data| data.to_vec())
}
/// Returns a copy of the ArrayBufferView data, viewed as T, checking that the
/// real type of it is ty.
pub unsafe fn array_buffer_view_to_vec_checked<T>(abv: *mut JSObject) -> Option<Vec<T>>
where T: ArrayBufferViewContents
{
array_buffer_view_data_checked(abv).map(|data| data.to_vec())
}
/// Returns whether `value` is an array-like object.