Struct VaList

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pub struct VaList<'a, 'f>where
    'f: 'a,
{ /* private fields */ }

🔬This is a nightly-only experimental API. (c_variadic)

Expand description

A wrapper for a va_list

Methods from Deref<Target = VaListImpl<'f>>§

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pub fn as_va_list<'a>(&'a mut self) -> VaList<'a, 'f>

🔬This is a nightly-only experimental API. (c_variadic)

Converts a VaListImpl into a VaList that is binary-compatible with C’s va_list.

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pub unsafe fn arg<T>(&mut self) -> T
where T: VaArgSafe,

🔬This is a nightly-only experimental API. (c_variadic)

Advance to the next arg.

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pub unsafe fn with_copy<F, R>(&self, f: F) -> R
where F: for<'copy> FnOnce(VaList<'copy, 'f>) -> R,

🔬This is a nightly-only experimental API. (c_variadic)

Copies the va_list at the current location.

Trait Implementations§

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impl<'a, 'f> Debug for VaList<'a, 'f>
where 'f: 'a,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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impl<'a, 'f> Deref for VaList<'a, 'f>
where 'f: 'a,

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type Target = VaListImpl<'f>

The resulting type after dereferencing.

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fn deref(&self) -> &VaListImpl<'f>

Dereferences the value.

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impl<'a, 'f> DerefMut for VaList<'a, 'f>
where 'f: 'a,

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fn deref_mut(&mut self) -> &mut VaListImpl<'f>

Mutably dereferences the value.

Auto Trait Implementations§

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impl<'a, 'f> !UnwindSafe for VaList<'a, 'f>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Any for T
where T: Any,

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fn get_type_id(&self) -> TypeId

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impl<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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