Enum VTableDecl 

pub enum VTableDecl {
    NotDynCompatible,
    Lazy,
    VTable(GlobalDeclRef),
    Unknown(String),
}

The virtual table instance for a trait implementation.

Variants

NotDynCompatible

The trait is not dyn-compatible, so no vtable exists.

Lazy

The trait is dyn-compatible, but we have not computed a vtable for it, as it is not used.

VTable(GlobalDeclRef)

The trait is dyn-compatible, and we have computed a vtable for it.

Unknown(String)

We don’t support computing a vtable for this impl; the string explains why.

Implementations

impl VTableDecl

pub fn is_not_dyn_compatible(&self) -> bool

Returns true if this is a VTableDecl::NotDynCompatible, otherwise false

pub fn is_lazy(&self) -> bool

Returns true if this is a VTableDecl::Lazy, otherwise false

pub fn is_v_table(&self) -> bool

Returns true if this is a VTableDecl::VTable, otherwise false

pub fn as_v_table_mut(&mut self) -> Option<&mut GlobalDeclRef>

Optionally returns mutable references to the inner fields if this is a VTableDecl::VTable, otherwise None

pub fn as_v_table(&self) -> Option<&GlobalDeclRef>

Optionally returns references to the inner fields if this is a VTableDecl::VTable, otherwise None

pub fn into_v_table(self) -> Result<GlobalDeclRef, Self>

Returns the inner fields if this is a VTableDecl::VTable, otherwise returns back the enum in the Err case of the result

pub unsafe fn into_v_table_unchecked(self) -> GlobalDeclRef

Unchecked return of the inner fields of VTableDecl::VTable.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_v_table_unchecked(&self) -> &GlobalDeclRef

Unchecked reference of the inner fields of VTableDecl::VTable.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_v_table_mut_unchecked(&mut self) -> &mut GlobalDeclRef

Unchecked mutable reference of the inner fields of VTableDecl::VTable.

Safety

Results in undefined behavior when it is the incorrect variant.

pub fn is_unknown(&self) -> bool

Returns true if this is a VTableDecl::Unknown, otherwise false

pub fn as_unknown_mut(&mut self) -> Option<&mut String>

Optionally returns mutable references to the inner fields if this is a VTableDecl::Unknown, otherwise None

pub fn as_unknown(&self) -> Option<&String>

Optionally returns references to the inner fields if this is a VTableDecl::Unknown, otherwise None

pub fn into_unknown(self) -> Result<String, Self>

Returns the inner fields if this is a VTableDecl::Unknown, otherwise returns back the enum in the Err case of the result

pub unsafe fn into_unknown_unchecked(self) -> String

Unchecked return of the inner fields of VTableDecl::Unknown.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_unknown_unchecked(&self) -> &String

Unchecked reference of the inner fields of VTableDecl::Unknown.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_unknown_mut_unchecked(&mut self) -> &mut String

Unchecked mutable reference of the inner fields of VTableDecl::Unknown.

Safety

Results in undefined behavior when it is the incorrect variant.

Trait Implementations

impl AstVisitable for VTableDecl

fn drive<V: VisitAst>(&self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

fn drive_mut<V: VisitAstMut>(&mut self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

fn drive_two<V: ZipAst>(&self, other: &Self, v: &mut V) -> ControlFlow<V::Break>

Recursively visit this type with the provided visitor. This calls the visitor’s visit_$any method if it exists, otherwise visit_inner.

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

The name of the type, used for debug logging.

fn dyn_visit<T: AstVisitable>(&self, f: impl FnMut(&T))

where Self: Sized,

Visit all occurrences of that type inside self, in pre-order traversal.

fn dyn_visit_mut<T: AstVisitable>(&mut self, f: impl FnMut(&mut T))

where Self: Sized,

Visit all occurrences of that type inside self, in pre-order traversal.

impl Clone for VTableDecl

fn clone(&self) -> VTableDecl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VTableDecl

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

Formats the value using the given formatter.

impl<'de, __State: ?Sized> DeserializeState<'de, __State> for VTableDecl

where GlobalDeclRef: DeserializeState<'de, __State>, String: DeserializeState<'de, __State>,

fn deserialize_state<__D>( __state: &__State, __deserializer: __D, ) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

impl<'s, V> Drive<'s, V> for VTableDecl

where V: Visitor + Visit<'s, GlobalDeclRef> + Visit<'s, String>,

fn drive_inner(&'s self, visitor: &mut V) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self.

impl<'s, V> DriveMut<'s, V> for VTableDecl

where V: Visitor + VisitMut<'s, GlobalDeclRef> + VisitMut<'s, String>,

fn drive_inner_mut(&'s mut self, visitor: &mut V) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self.

impl<'s, V> DriveTwo<'s, V> for VTableDecl

where V: Visitor<Break: Default> + VisitTwo<'s, GlobalDeclRef> + VisitTwo<'s, String>,

fn drive_two_inner( &'s self, other: &'s Self, visitor: &mut V, ) -> ControlFlow<V::Break>

Call v.visit() on the immediate contents of self and other, if they correspond. If the values don’t match up, this returns Break(Default::default()).

impl<__State: ?Sized> SerializeState<__State> for VTableDecl

where GlobalDeclRef: SerializeState<__State>, String: SerializeState<__State>,

fn serialize_state<__S>( &self, __state: &__State, __serializer: __S, ) -> Result<__S::Ok, __S::Error>

where __S: Serializer,