Struct chalk_solve::rust_ir::FnDefDatumBound

pub struct FnDefDatumBound<I: Interner> {
    pub inputs_and_output: Binders<FnDefInputsAndOutputDatum<I>>,
    pub where_clauses: Vec<QuantifiedWhereClause<I>>,
}

Represents the bounds on a FnDefDatum, including the function definition's type signature and where clauses.

Fields

inputs_and_output: Binders<FnDefInputsAndOutputDatum<I>>

Inputs and outputs defined on a function These are needed for late-bound regions in rustc. For example the lifetime 'a in

fn foo<'a, T>(&'a T);
       ^^

Rustc doesn't pass in late-bound the regions in substs, but the inputs and outputs may use them. where_clauses don't need an extra set of Binders, since any lifetimes found in where clauses are not late-bound.

For more information, see this rustc-dev-guide chapter.

where_clauses: Vec<QuantifiedWhereClause<I>>

Where clauses defined on the function

fn foo<T>() where T: Eq;
            ^^^^^^^^^^^

Trait Implementations

impl<I: Clone + Interner> Clone for FnDefDatumBound<I>

fn clone(&self) -> FnDefDatumBound<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I: Debug + Interner> Debug for FnDefDatumBound<I>

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

Formats the value using the given formatter.

impl<I: Eq + Interner> Eq for FnDefDatumBound<I>

impl<I: Interner, _TI> Fold<I, _TI> for FnDefDatumBound<I> where
    _TI: TargetInterner<I>, 

type Result = FnDefDatumBound<_TI>

The type of value that will be produced once folding is done. Typically this is Self, unless Self contains borrowed values, in which case owned values are produced (for example, one can fold over a &T value where T: Fold, in which case you get back a T, not a &T).

fn fold_with<'i>(
    &self,
    folder: &mut dyn Folder<'i, I, _TI>,
    outer_binder: DebruijnIndex
) -> Fallible<Self::Result> where
    I: 'i,
    _TI: 'i, 

Apply the given folder folder to self; binders is the number of binders that are in scope when beginning the folder. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.

impl<I: Interner> HasInterner for FnDefDatumBound<I>

type Interner = I

The interner associated with the type.

impl<I: Hash + Interner> Hash for FnDefDatumBound<I>

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, 

Feeds a slice of this type into the given Hasher.

impl<I: PartialEq + Interner> PartialEq<FnDefDatumBound<I>> for FnDefDatumBound<I>

fn eq(&self, other: &FnDefDatumBound<I>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &FnDefDatumBound<I>) -> bool

This method tests for !=.

impl<I: Interner> StructuralEq for FnDefDatumBound<I>

impl<I: Interner> StructuralPartialEq for FnDefDatumBound<I>

impl<I: Interner> Visit<I> for FnDefDatumBound<I>

fn visit_with<'i, R: VisitResult>(
    &self,
    visitor: &mut dyn Visitor<'i, I, Result = R>,
    outer_binder: DebruijnIndex
) -> R where
    I: 'i, 

Apply the given visitor visitor to self; binders is the number of binders that are in scope when beginning the visitor. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.