#[repr(C)]
pub struct TypeLayout { /* private fields */ }
Expand description

The layout of a type, also includes metadata about where the type was defined.

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impl TypeLayout

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pub const fn shared_vars(&self) -> &'static SharedVars

Gets the SharedVars of the type, containing the slices that many types inside TypeLayout contain ranges into.

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pub fn package_and_version(&self) -> (RStr<'static>, VersionStrings)

Gets the package and package version where the type was declared.

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pub fn package(&self) -> RStr<'static>

Gets the package where the type was declared.

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pub fn package_version(&self) -> VersionStrings

Gets the package version for the package where the type was declared.

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pub const fn line(&self) -> u32

Gets which line the type was defined in.

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pub const fn mod_path(&self) -> ModPath

Gets the full path to the module where the type was defined.

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pub fn extra_checks(&self) -> Option<ExtraChecksStaticRef>

Gets a trait object used to check extra properties about the type.

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pub const fn get_fields(&self) -> Option<TLFields>

Gets the fields of the type.

Return value

If this a:

  • primitive or opaque type: It returns None.

  • enum: It returns Some() with all the fields in the order that they were declared, ignoring variants.

  • structs/unions/prefix types: It returns Some() with all the fields in the order that they were declared.

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pub const fn is_prefix_kind(&self) -> bool

Whether this is a prefix-type(module or vtable).

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pub fn name(&self) -> &'static str

Gets the name of the type.

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pub const fn is_nonzero(&self) -> bool

Gets whether the type is a NonZero type, which can be put in an Option while being ffi-safe.

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pub fn get_utypeid(&self) -> UTypeId

Gets the UTypeId for the type, which is an ffi safe equivalent of TypeId.

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pub const fn item_info(&self) -> &ItemInfo

Gets information about where a type was declared.

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pub const fn alignment(&self) -> usize

Gets the alignment of the type.

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pub const fn size(&self) -> usize

Gets the size of the type.

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pub const fn tag(&self) -> &'static Tag

Gets the Tag associated with a type, a JSON-like datastructure which is another way to check extra properties about a type.

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pub const fn repr_attr(&self) -> ReprAttr

Gets the representation attribute of the type.

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pub const fn mod_refl_mode(&self) -> ModReflMode

Gets the ModReflMode for the type, whether this is a module whose definition can be reflected on at runtime.

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pub fn data(&self) -> TLData

The interior of the type definition, describing whether the type is a primitive/enum/struct/union and its contents.

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pub const fn data_discriminant(&self) -> TLDataDiscriminant

Describes whether the type is a primitive/enum/struct/union, every variant corresponds to a TLData variant of the same name.

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pub fn phantom_fields(&self) -> TLFields

Gets the virtual fields that aren’t part of th type definition, but are checked as part of the type

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pub fn generics(&self) -> GenericParams

Gets the generic parameters of the type.

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pub const fn mono_type_layout(&self) -> &MonoTypeLayout

Gets the parts of the type layout that don’t change with generic parameters.

Trait Implementations§

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impl Clone for TypeLayout

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fn clone(&self) -> TypeLayout

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TypeLayout

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

Formats the value using the given formatter. Read more
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impl Display for TypeLayout

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

Formats the value using the given formatter. Read more
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impl GetStaticEquivalent_ for TypeLayout

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type StaticEquivalent = _static_TypeLayout

The 'static equivalent of Self
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impl PartialEq for TypeLayout

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StableAbi for TypeLayout

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type IsNonZeroType = False

Whether this type has a single invalid bit-pattern. Read more
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const LAYOUT: &'static TypeLayout = _

The layout of the type provided by implementors.
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const ABI_CONSTS: AbiConsts = _

const-equivalents of the associated types.
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impl Copy for TypeLayout

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impl Eq for TypeLayout

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impl Send for TypeLayout

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impl Sync for TypeLayout

Auto Trait Implementations§

Blanket Implementations§

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impl<T> AlignerFor<1> for T

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type Aligner = AlignTo1<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<1024> for T

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type Aligner = AlignTo1024<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<128> for T

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type Aligner = AlignTo128<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<16> for T

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type Aligner = AlignTo16<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<16384> for T

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type Aligner = AlignTo16384<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<2> for T

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type Aligner = AlignTo2<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<2048> for T

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type Aligner = AlignTo2048<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<256> for T

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type Aligner = AlignTo256<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<32> for T

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type Aligner = AlignTo32<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<32768> for T

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type Aligner = AlignTo32768<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<4> for T

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type Aligner = AlignTo4<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<4096> for T

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type Aligner = AlignTo4096<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<512> for T

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type Aligner = AlignTo512<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<64> for T

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type Aligner = AlignTo64<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<8> for T

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type Aligner = AlignTo8<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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impl<T> AlignerFor<8192> for T

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type Aligner = AlignTo8192<T>

The AlignTo* type which aligns Self to ALIGNMENT.
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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> 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, U> Into<U> 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<'a, T> RCowCompatibleRef<'a> for T
where T: Clone + 'a,

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type RefC = &'a T

The (preferably) ffi-safe equivalent of &Self.
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type ROwned = T

The owned version of Self::RefC.
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fn as_c_ref(from: &'a T) -> <T as RCowCompatibleRef<'a>>::RefC

Converts a reference to an FFI-safe type
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fn as_rust_ref(from: <T as RCowCompatibleRef<'a>>::RefC) -> &'a T

Converts an FFI-safe type to a reference
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impl<S> ROExtAcc for S

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fn f_get<F>(&self, offset: FieldOffset<S, F, Aligned>) -> &F

Gets a reference to a field, determined by offset. Read more
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fn f_get_mut<F>(&mut self, offset: FieldOffset<S, F, Aligned>) -> &mut F

Gets a muatble reference to a field, determined by offset. Read more
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fn f_get_ptr<F, A>(&self, offset: FieldOffset<S, F, A>) -> *const F

Gets a const pointer to a field, the field is determined by offset. Read more
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fn f_get_mut_ptr<F, A>(&mut self, offset: FieldOffset<S, F, A>) -> *mut F

Gets a mutable pointer to a field, determined by offset. Read more
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impl<S> ROExtOps<Aligned> for S

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fn f_replace<F>(&mut self, offset: FieldOffset<S, F, Aligned>, value: F) -> F

Replaces a field (determined by offset) with value, returning the previous value of the field. Read more
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fn f_swap<F>(&mut self, offset: FieldOffset<S, F, Aligned>, right: &mut S)

Swaps a field (determined by offset) with the same field in right. Read more
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fn f_get_copy<F>(&self, offset: FieldOffset<S, F, Aligned>) -> F
where F: Copy,

Gets a copy of a field (determined by offset). The field is determined by offset. Read more
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impl<S> ROExtOps<Unaligned> for S

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fn f_replace<F>(&mut self, offset: FieldOffset<S, F, Unaligned>, value: F) -> F

Replaces a field (determined by offset) with value, returning the previous value of the field. Read more
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fn f_swap<F>(&mut self, offset: FieldOffset<S, F, Unaligned>, right: &mut S)

Swaps a field (determined by offset) with the same field in right. Read more
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fn f_get_copy<F>(&self, offset: FieldOffset<S, F, Unaligned>) -> F
where F: Copy,

Gets a copy of a field (determined by offset). The field is determined by offset. Read more
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impl<T> SelfOps for T
where T: ?Sized,

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fn eq_id(&self, other: &Self) -> bool

Compares the address of self with the address of other. Read more
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fn piped<F, U>(self, f: F) -> U
where F: FnOnce(Self) -> U, Self: Sized,

Emulates the pipeline operator, allowing method syntax in more places. Read more
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fn piped_ref<'a, F, U>(&'a self, f: F) -> U
where F: FnOnce(&'a Self) -> U,

The same as piped except that the function takes &Self Useful for functions that take &Self instead of Self. Read more
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fn piped_mut<'a, F, U>(&'a mut self, f: F) -> U
where F: FnOnce(&'a mut Self) -> U,

The same as piped, except that the function takes &mut Self. Useful for functions that take &mut Self instead of Self.
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fn mutated<F>(self, f: F) -> Self
where F: FnOnce(&mut Self), Self: Sized,

Mutates self using a closure taking self by mutable reference, passing it along the method chain. Read more
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fn observe<F>(self, f: F) -> Self
where F: FnOnce(&Self), Self: Sized,

Observes the value of self, passing it along unmodified. Useful in long method chains. Read more
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fn into_<T>(self) -> T
where Self: Into<T>,

Performs a conversion with Into. using the turbofish .into_::<_>() syntax. Read more
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fn as_ref_<T>(&self) -> &T
where Self: AsRef<T>, T: ?Sized,

Performs a reference to reference conversion with AsRef, using the turbofish .as_ref_::<_>() syntax. Read more
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fn as_mut_<T>(&mut self) -> &mut T
where Self: AsMut<T>, T: ?Sized,

Performs a mutable reference to mutable reference conversion with AsMut, using the turbofish .as_mut_::<_>() syntax. Read more
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fn drop_(self)
where Self: Sized,

Drops self using method notation. Alternative to std::mem::drop. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<This> TransmuteElement for This
where This: ?Sized,

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unsafe fn transmute_element<T>( self ) -> <Self as CanTransmuteElement<T>>::TransmutedPtr
where Self: CanTransmuteElement<T>,

Transmutes the element type of this pointer.. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TypeIdentity for T
where T: ?Sized,

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type Type = T

This is always Self.
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fn into_type(self) -> Self::Type
where Self: Sized, Self::Type: Sized,

Converts a value back to the original type.
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fn as_type(&self) -> &Self::Type

Converts a reference back to the original type.
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fn as_type_mut(&mut self) -> &mut Self::Type

Converts a mutable reference back to the original type.
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fn into_type_box(self: Box<Self>) -> Box<Self::Type>

Converts a box back to the original type.
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fn into_type_arc(this: Arc<Self>) -> Arc<Self::Type>

Converts an Arc back to the original type. Read more
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fn into_type_rc(this: Rc<Self>) -> Rc<Self::Type>

Converts an Rc back to the original type. Read more
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fn from_type(this: Self::Type) -> Self
where Self: Sized, Self::Type: Sized,

Converts a value back to the original type.
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fn from_type_ref(this: &Self::Type) -> &Self

Converts a reference back to the original type.
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fn from_type_mut(this: &mut Self::Type) -> &mut Self

Converts a mutable reference back to the original type.
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fn from_type_box(this: Box<Self::Type>) -> Box<Self>

Converts a box back to the original type.
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fn from_type_arc(this: Arc<Self::Type>) -> Arc<Self>

Converts an Arc back to the original type.
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fn from_type_rc(this: Rc<Self::Type>) -> Rc<Self>

Converts an Rc back to the original type.
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impl<This> ValidTag_Bounds for This
where This: Debug + Clone + PartialEq,