Struct scale_info::prelude::mem::Assume

source ·

pub struct Assume {
    pub alignment: bool,
    pub lifetimes: bool,
    pub safety: bool,
    pub validity: bool,
}

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

Expand description

What transmutation safety conditions shall the compiler assume that you are checking?

Fields§

§alignment: bool

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

When true, the compiler assumes that you are ensuring (either dynamically or statically) that destination referents do not have stricter alignment requirements than source referents.

§lifetimes: bool

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

When true, the compiler assume that you are ensuring that lifetimes are not extended in a manner that violates Rust’s memory model.

§safety: bool

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

When true, the compiler assumes that you have ensured that it is safe for you to violate the type and field privacy of the destination type (and sometimes of the source type, too).

§validity: bool

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

When true, the compiler assumes that you are ensuring that the source type is actually a valid instance of the destination type.

Struct scale_info::prelude::mem::Assume

Fields§

Implementations§

impl Assume

pub const NOTHING: Assume = Self{ alignment: false, lifetimes: false, safety: false, validity: false,}

pub const ALIGNMENT: Assume = Self{ alignment: true, ..Self::NOTHING}

pub const LIFETIMES: Assume = Self{ lifetimes: true, ..Self::NOTHING}

pub const SAFETY: Assume = Self{ safety: true, ..Self::NOTHING}

pub const VALIDITY: Assume = Self{ validity: true, ..Self::NOTHING}

pub const fn and(self, other_assumptions: Assume) -> Assume

pub const fn but_not(self, other_assumptions: Assume) -> Assume

Trait Implementations§

impl Add<Assume> for Assume

type Output = Assume

fn add(self, other_assumptions: Assume) -> Assume

impl Clone for Assume

fn clone(&self) -> Assume

fn clone_from(&mut self, source: &Self)

impl Debug for Assume

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

impl PartialEq<Assume> for Assume

fn eq(&self, other: &Assume) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Sub<Assume> for Assume

type Output = Assume

fn sub(self, other_assumptions: Assume) -> Assume

impl ConstParamTy for Assume

impl Copy for Assume

impl Eq for Assume

impl StructuralEq for Assume

impl StructuralPartialEq for Assume

Auto Trait Implementations§

impl RefUnwindSafe for Assume

impl Send for Assume

impl Sync for Assume

impl Unpin for Assume

impl UnwindSafe for Assume

Blanket Implementations§

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> Conv for T

fn conv<T>(self) -> Twhere Self: Into<T>,

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self>where Self: Binary,

fn fmt_display(self) -> FmtDisplay<Self>where Self: Display,

fn fmt_lower_exp(self) -> FmtLowerExp<Self>where Self: LowerExp,

fn fmt_lower_hex(self) -> FmtLowerHex<Self>where Self: LowerHex,

fn fmt_octal(self) -> FmtOctal<Self>where Self: Octal,

fn fmt_pointer(self) -> FmtPointer<Self>where Self: Pointer,

fn fmt_upper_exp(self) -> FmtUpperExp<Self>where Self: UpperExp,

fn fmt_upper_hex(self) -> FmtUpperHex<Self>where Self: UpperHex,

fn fmt_list(self) -> FmtList<Self>where &'a Self: for<'a> IntoIterator,

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pipe for Twhere T: ?Sized,

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere Self: Sized,

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere R: 'a,

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere R: 'a,

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> Rwhere Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R ) -> Rwhere Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> Rwhere Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> Rwhere Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> Rwhere Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R ) -> Rwhere Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

impl<T> Tap for T

fn tap(self, func: impl FnOnce(&Self)) -> Self

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Selfwhere Self: Borrow<B>, B: ?Sized,

fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Selfwhere Self: BorrowMut<B>, B: ?Sized,

fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Selfwhere Self: AsRef<R>, R: ?Sized,

fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Selfwhere Self: AsMut<R>, R: ?Sized,

fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Selfwhere Self: Deref<Target = T>, T: ?Sized,

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Selfwhere Self: DerefMut<Target = T> + Deref, T: ?Sized,

fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self