pub struct TraitRef<I: Interner> {
    pub trait_id: TraitId<I>,
    pub substitution: Substitution<I>,
}
Expand description

A trait reference describes the relationship between a type and a trait. This can be used in two forms:

  • P0: Trait<P1..Pn> (e.g. i32: Copy), which mentions that the type implements the trait.
  • <P0 as Trait<P1..Pn>> (e.g. i32 as Copy), which casts the type to that specific trait.

Fields

trait_id: TraitId<I>

The trait id.

substitution: Substitution<I>

The substitution, containing both the Self type and the parameters.

Implementations

Returns a “Debuggable” type that prints like P0 as Trait<P1..>.

Returns a “Debuggable” type that prints like P0: Trait<P1..>.

Gets all type parameters in this trait ref, including Self.

Gets the type parameters of the Self type in this trait ref.

Construct a FromEnv using this trait ref.

Construct a WellFormed using this trait ref.

Trait Implementations

Cast a value to type T.

Cast a value to type T.

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

The interner associated with the type.

Feeds this value into the given Hasher. Read more

Feeds a slice of this type into the given Hasher. Read more

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

This method tests for !=.

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. Read more

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. Read more

Uses the zipper to walk through two values, ensuring that they match.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Cast a value to type U using CastTo.

Cast a value to type T.

Cast a value to type T.

Cast a value to type T.

Checks whether self and other could possibly match.

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Shifts this term in one level of binders.

Shifts a term valid at outer_binder so that it is valid at the innermost binder. See DebruijnIndex::shifted_in_from for a detailed explanation. Read more

Shifts a term valid at the innermost binder so that it is valid at outer_binder. See DebruijnIndex::shifted_out_to for a detailed explanation. Read more

Shifts this term out one level of binders.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Check whether there are free (non-bound) variables.