Struct RegionBinder

pub struct RegionBinder<T> {
    pub regions: Vector<RegionId, RegionParam>,
    pub skip_binder: T,
}

A value of type T bound by regions. We should use binder instead but this causes name clash issues in the derived ocaml visitors. TODO: merge with binder

Fields

regions: Vector<RegionId, RegionParam>

skip_binder: T

Named this way to highlight accesses to the inner value that might be handling parameters incorrectly. Prefer using helper methods.

Implementations

impl<T> RegionBinder<T>

pub fn empty(x: T) -> Self

where T: TyVisitable,

Wrap the value in an empty region binder, shifting variables appropriately.

pub fn map<U>(self, f: impl FnOnce(T) -> U) -> RegionBinder<U>

pub fn map_ref<U>(&self, f: impl FnOnce(&T) -> U) -> RegionBinder<U>

pub fn apply(self, regions: Vector<RegionId, Region>) -> T

where T: AstVisitable,

Substitute the bound variables with the given lifetimes.

pub fn erase(self) -> T

where T: AstVisitable,

Substitute the bound variables with erased lifetimes.

impl<T> RegionBinder<T>

fn fmt_split<'a, C>(&'a self, ctx: &'a C) -> (String, String)

where C: AstFormatter, T: FmtWithCtx<C::Reborrow<'a>>,

Format the parameters and contents of this binder and returns the resulting strings.

fn fmt_as_for<'a, C>(&'a self, ctx: &'a C) -> String

where C: AstFormatter, T: FmtWithCtx<C::Reborrow<'a>>,

Formats the binder as for<params> value.

Trait Implementations

impl<T: AstVisitable> AstVisitable for RegionBinder<T>

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 name(&self) -> &'static str

The name of the type, used for debug logging.

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

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))

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

impl<T: Clone> Clone for RegionBinder<T>

fn clone(&self) -> RegionBinder<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for RegionBinder<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for RegionBinder<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'s, T, V> Drive<'s, V> for RegionBinder<T>

where V: Visitor + Visit<'s, Vector<RegionId, RegionParam>> + Visit<'s, T>,

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

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

impl<'s, T, V> DriveMut<'s, V> for RegionBinder<T>

where V: Visitor + VisitMut<'s, Vector<RegionId, RegionParam>> + VisitMut<'s, T>,

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

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

impl<C: AstFormatter> FmtWithCtx<C> for RegionBinder<(Vec<Ty>, Ty)>

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

fn with_ctx<'a>(&'a self, ctx: &'a C) -> WithCtx<'a, C, Self>

Returns a struct that implements Display. This allows the following:

fn to_string_with_ctx(&self, ctx: &C) -> String

impl<T: Hash> Hash for RegionBinder<T>

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<T: PartialEq> PartialEq for RegionBinder<T>

fn eq(&self, other: &RegionBinder<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> Serialize for RegionBinder<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Eq> Eq for RegionBinder<T>

impl<T> StructuralPartialEq for RegionBinder<T>