#![stable(feature = "", since = "1.30.0")]
-
#![allow(non_camel_case_types)]
//! Utilities related to FFI bindings.
#[repr(u8)]
#[stable(feature = "core_c_void", since = "1.30.0")]
pub enum c_void {
- #[unstable(feature = "c_void_variant", reason = "temporary implementation detail",
- issue = "0")]
- #[doc(hidden)] __variant1,
- #[unstable(feature = "c_void_variant", reason = "temporary implementation detail",
- issue = "0")]
- #[doc(hidden)] __variant2,
+ #[unstable(
+ feature = "c_void_variant",
+ reason = "temporary implementation detail",
+ issue = "none"
+ )]
+ #[doc(hidden)]
+ __variant1,
+ #[unstable(
+ feature = "c_void_variant",
+ reason = "temporary implementation detail",
+ issue = "none"
+ )]
+ #[doc(hidden)]
+ __variant2,
}
#[stable(feature = "std_debug", since = "1.16.0")]
/// Basic implementation of a `va_list`.
// The name is WIP, using `VaListImpl` for now.
-#[cfg(any(all(not(target_arch = "aarch64"), not(target_arch = "powerpc"),
- not(target_arch = "x86_64")),
- all(target_arch = "aarch64", target_os = "ios"),
- target_arch = "wasm32",
- target_arch = "asmjs",
- windows))]
+#[cfg(any(
+ all(not(target_arch = "aarch64"), not(target_arch = "powerpc"), not(target_arch = "x86_64")),
+ all(target_arch = "aarch64", target_os = "ios"),
+ target_arch = "wasm32",
+ target_arch = "asmjs",
+ windows
+))]
#[repr(transparent)]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
#[lang = "va_list"]
pub struct VaListImpl<'f> {
ptr: *mut c_void,
_marker: PhantomData<&'f mut &'f c_void>,
}
-#[cfg(any(all(not(target_arch = "aarch64"), not(target_arch = "powerpc"),
- not(target_arch = "x86_64")),
- all(target_arch = "aarch64", target_os = "ios"),
- target_arch = "wasm32",
- target_arch = "asmjs",
- windows))]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[cfg(any(
+ all(not(target_arch = "aarch64"), not(target_arch = "powerpc"), not(target_arch = "x86_64")),
+ all(target_arch = "aarch64", target_os = "ios"),
+ target_arch = "wasm32",
+ target_arch = "asmjs",
+ windows
+))]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'f> fmt::Debug for VaListImpl<'f> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "va_list* {:p}", self.ptr)
#[cfg(all(target_arch = "aarch64", not(target_os = "ios"), not(windows)))]
#[repr(C)]
#[derive(Debug)]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
#[lang = "va_list"]
pub struct VaListImpl<'f> {
stack: *mut c_void,
#[cfg(all(target_arch = "powerpc", not(windows)))]
#[repr(C)]
#[derive(Debug)]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
#[lang = "va_list"]
pub struct VaListImpl<'f> {
gpr: u8,
#[cfg(all(target_arch = "x86_64", not(windows)))]
#[repr(C)]
#[derive(Debug)]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
#[lang = "va_list"]
pub struct VaListImpl<'f> {
gp_offset: i32,
/// A wrapper for a `va_list`
#[repr(transparent)]
#[derive(Debug)]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
pub struct VaList<'a, 'f: 'a> {
- #[cfg(any(all(not(target_arch = "aarch64"), not(target_arch = "powerpc"),
- not(target_arch = "x86_64")),
- all(target_arch = "aarch64", target_os = "ios"),
- target_arch = "wasm32",
- target_arch = "asmjs",
- windows))]
+ #[cfg(any(
+ all(
+ not(target_arch = "aarch64"),
+ not(target_arch = "powerpc"),
+ not(target_arch = "x86_64")
+ ),
+ all(target_arch = "aarch64", target_os = "ios"),
+ target_arch = "wasm32",
+ target_arch = "asmjs",
+ windows
+ ))]
inner: VaListImpl<'f>,
- #[cfg(all(any(target_arch = "aarch64", target_arch = "powerpc",
- target_arch = "x86_64"),
- any(not(target_arch = "aarch64"), not(target_os = "ios")),
- not(target_arch = "wasm32"),
- not(target_arch = "asmjs"),
- not(windows)))]
+ #[cfg(all(
+ any(target_arch = "aarch64", target_arch = "powerpc", target_arch = "x86_64"),
+ any(not(target_arch = "aarch64"), not(target_os = "ios")),
+ not(target_arch = "wasm32"),
+ not(target_arch = "asmjs"),
+ not(windows)
+ ))]
inner: &'a mut VaListImpl<'f>,
_marker: PhantomData<&'a mut VaListImpl<'f>>,
}
-#[cfg(any(all(not(target_arch = "aarch64"), not(target_arch = "powerpc"),
- not(target_arch = "x86_64")),
- all(target_arch = "aarch64", target_os = "ios"),
- target_arch = "wasm32",
- target_arch = "asmjs",
- windows))]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[cfg(any(
+ all(not(target_arch = "aarch64"), not(target_arch = "powerpc"), not(target_arch = "x86_64")),
+ all(target_arch = "aarch64", target_os = "ios"),
+ target_arch = "wasm32",
+ target_arch = "asmjs",
+ windows
+))]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'f> VaListImpl<'f> {
/// Convert a `VaListImpl` into a `VaList` that is binary-compatible with C's `va_list`.
#[inline]
pub fn as_va_list<'a>(&'a mut self) -> VaList<'a, 'f> {
- VaList {
- inner: VaListImpl { ..*self },
- _marker: PhantomData,
- }
+ VaList { inner: VaListImpl { ..*self }, _marker: PhantomData }
}
}
-#[cfg(all(any(target_arch = "aarch64", target_arch = "powerpc",
- target_arch = "x86_64"),
- any(not(target_arch = "aarch64"), not(target_os = "ios")),
- not(target_arch = "wasm32"),
- not(target_arch = "asmjs"),
- not(windows)))]
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[cfg(all(
+ any(target_arch = "aarch64", target_arch = "powerpc", target_arch = "x86_64"),
+ any(not(target_arch = "aarch64"), not(target_os = "ios")),
+ not(target_arch = "wasm32"),
+ not(target_arch = "asmjs"),
+ not(windows)
+))]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'f> VaListImpl<'f> {
/// Convert a `VaListImpl` into a `VaList` that is binary-compatible with C's `va_list`.
#[inline]
pub fn as_va_list<'a>(&'a mut self) -> VaList<'a, 'f> {
- VaList {
- inner: self,
- _marker: PhantomData,
- }
+ VaList { inner: self, _marker: PhantomData }
}
}
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'a, 'f: 'a> Deref for VaList<'a, 'f> {
type Target = VaListImpl<'f>;
}
}
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'a, 'f: 'a> DerefMut for VaList<'a, 'f> {
#[inline]
fn deref_mut(&mut self) -> &mut VaListImpl<'f> {
/// Trait which whitelists the allowed types to be used with [VaList::arg]
///
/// [VaList::va_arg]: struct.VaList.html#method.arg
- #[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+ #[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+ )]
pub trait VaArgSafe {}
}
}
}
-impl_va_arg_safe!{i8, i16, i32, i64, usize}
-impl_va_arg_safe!{u8, u16, u32, u64, isize}
-impl_va_arg_safe!{f64}
+impl_va_arg_safe! {i8, i16, i32, i64, usize}
+impl_va_arg_safe! {u8, u16, u32, u64, isize}
+impl_va_arg_safe! {f64}
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<T> sealed_trait::VaArgSafe for *mut T {}
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<T> sealed_trait::VaArgSafe for *const T {}
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'f> VaListImpl<'f> {
/// Advance to the next arg.
#[inline]
/// Copies the `va_list` at the current location.
pub unsafe fn with_copy<F, R>(&self, f: F) -> R
- where F: for<'copy> FnOnce(VaList<'copy, 'f>) -> R {
+ where
+ F: for<'copy> FnOnce(VaList<'copy, 'f>) -> R,
+ {
let mut ap = self.clone();
let ret = f(ap.as_va_list());
va_end(&mut ap);
}
}
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'f> Clone for VaListImpl<'f> {
#[inline]
fn clone(&self) -> Self {
}
}
-#[unstable(feature = "c_variadic",
- reason = "the `c_variadic` feature has not been properly tested on \
- all supported platforms",
- issue = "44930")]
+#[unstable(
+ feature = "c_variadic",
+ reason = "the `c_variadic` feature has not been properly tested on \
+ all supported platforms",
+ issue = "44930"
+)]
impl<'f> Drop for VaListImpl<'f> {
fn drop(&mut self) {
// FIXME: this should call `va_end`, but there's no clean way to