Enum GenericArg 

pub enum GenericArg<'tcx> {
    Lifetime(Region),
    Type(Ty<'tcx>),
    Const(ConstantExpr<'tcx>),
}

Reflects both [ty::GenericArg] and [ty::GenericArgKind]

Variants

Lifetime(Region)

Type(Ty<'tcx>)

Const(ConstantExpr<'tcx>)

Implementations

impl<'tcx> GenericArg<'tcx>

pub fn is_lifetime(&self) -> bool

Returns true if this is a GenericArg::Lifetime, otherwise false

pub fn as_lifetime_mut(&mut self) -> Option<&mut Region>

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

pub fn as_lifetime(&self) -> Option<&Region>

Optionally returns references to the inner fields if this is a GenericArg::Lifetime, otherwise None

pub fn into_lifetime(self) -> Result<Region, Self>

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

pub unsafe fn into_lifetime_unchecked(self) -> Region

Unchecked return of the inner fields of GenericArg::Lifetime.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_lifetime_unchecked(&self) -> &Region

Unchecked reference of the inner fields of GenericArg::Lifetime.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_lifetime_mut_unchecked(&mut self) -> &mut Region

Unchecked mutable reference of the inner fields of GenericArg::Lifetime.

Safety

Results in undefined behavior when it is the incorrect variant.

pub fn is_type(&self) -> bool

Returns true if this is a GenericArg::Type, otherwise false

pub fn as_type_mut(&mut self) -> Option<&mut Ty<'tcx>>

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

pub fn as_type(&self) -> Option<&Ty<'tcx>>

Optionally returns references to the inner fields if this is a GenericArg::Type, otherwise None

pub fn into_type(self) -> Result<Ty<'tcx>, Self>

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

pub unsafe fn into_type_unchecked(self) -> Ty<'tcx>

Unchecked return of the inner fields of GenericArg::Type.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_type_unchecked(&self) -> &Ty<'tcx>

Unchecked reference of the inner fields of GenericArg::Type.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_type_mut_unchecked(&mut self) -> &mut Ty<'tcx>

Unchecked mutable reference of the inner fields of GenericArg::Type.

Safety

Results in undefined behavior when it is the incorrect variant.

pub fn is_const(&self) -> bool

Returns true if this is a GenericArg::Const, otherwise false

pub fn as_const_mut(&mut self) -> Option<&mut ConstantExpr<'tcx>>

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

pub fn as_const(&self) -> Option<&ConstantExpr<'tcx>>

Optionally returns references to the inner fields if this is a GenericArg::Const, otherwise None

pub fn into_const(self) -> Result<ConstantExpr<'tcx>, Self>

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

pub unsafe fn into_const_unchecked(self) -> ConstantExpr<'tcx>

Unchecked return of the inner fields of GenericArg::Const.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_const_unchecked(&self) -> &ConstantExpr<'tcx>

Unchecked reference of the inner fields of GenericArg::Const.

Safety

Results in undefined behavior when it is the incorrect variant.

pub unsafe fn as_const_mut_unchecked(&mut self) -> &mut ConstantExpr<'tcx>

Unchecked mutable reference of the inner fields of GenericArg::Const.

Safety

Results in undefined behavior when it is the incorrect variant.

Trait Implementations

impl<'tcx> Clone for GenericArg<'tcx>

fn clone(&self) -> GenericArg<'tcx>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for GenericArg<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> Eq for GenericArg<'tcx>

impl<'tcx> Hash for GenericArg<'tcx>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'tcx> PartialEq for GenericArg<'tcx>

fn eq(&self, other: &GenericArg<'tcx>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<'tcx, S: UnderOwnerState<'tcx>> SInto<S, GenericArg<'tcx>> for GenericArgKind<'tcx>

fn sinto(&self, s: &S) -> GenericArg<'tcx>

impl<'tcx, S: UnderOwnerState<'tcx>> SInto<S, GenericArg<'tcx>> for GenericArg<'tcx>

fn sinto(&self, s: &S) -> GenericArg<'tcx>

impl<'tcx> StructuralPartialEq for GenericArg<'tcx>