Struct rustc::ty::TraitRef [] [src]

pub struct TraitRef<'tcx> {
    pub def_id: DefId,
    pub substs: &'tcx Substs<'tcx>,
}
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A complete reference to a trait. These take numerous guises in syntax, but perhaps the most recognizable form is in a where clause:

T : Foo<U>

This would be represented by a trait-reference where the def-id is the def-id for the trait Foo and the substs define T as parameter 0, and U as parameter 1.

Trait references also appear in object types like Foo<U>, but in that case the Self parameter is absent from the substitutions.

Note that a TraitRef introduces a level of region binding, to account for higher-ranked trait bounds like T : for<'a> Foo<&'a U> or higher-ranked object types.

Fields

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

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Methods

impl<'a, 'gcx, 'tcx> TraitRef<'tcx>
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impl<'tcx> TraitRef<'tcx>
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🔬 This is a nightly-only experimental API. (rustc_private)

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[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

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Trait Implementations

impl<'tcx> HashStable<StableHashingContext<'tcx>> for TraitRef<'tcx>
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impl<'tcx> ToTrace<'tcx> for TraitRef<'tcx>
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impl<'tcx> Relate<'tcx> for TraitRef<'tcx>
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impl<'a, 'tcx> Lift<'tcx> for TraitRef<'a>
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🔬 This is a nightly-only experimental API. (rustc_private)

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impl<'tcx> TypeFoldable<'tcx> for TraitRef<'tcx>
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[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Indicates whether this value references only 'global' types/lifetimes that are the same regardless of what fn we are in. This is used for caching. Errs on the side of returning false. Read more

impl<'tcx> Copy for TraitRef<'tcx>
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impl<'tcx> Clone for TraitRef<'tcx>
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Returns a copy of the value. Read more

1.0.0
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Performs copy-assignment from source. Read more

impl<'tcx> PartialEq for TraitRef<'tcx>
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This method tests for self and other values to be equal, and is used by ==. Read more

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This method tests for !=.

impl<'tcx> Eq for TraitRef<'tcx>
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impl<'tcx> Hash for TraitRef<'tcx>
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Feeds this value into the given [Hasher]. Read more

1.3.0
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Feeds a slice of this type into the given [Hasher]. Read more

impl<'tcx> Encodable for TraitRef<'tcx>
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impl<'tcx> Decodable for TraitRef<'tcx>
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impl<'tcx> ToPolyTraitRef<'tcx> for TraitRef<'tcx>
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🔬 This is a nightly-only experimental API. (rustc_private)

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impl<'tcx> ToPredicate<'tcx> for TraitRef<'tcx>
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🔬 This is a nightly-only experimental API. (rustc_private)

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impl<'tcx> Print for TraitRef<'tcx>
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🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

[src]

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

impl<'tcx> Display for TraitRef<'tcx>
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Formats the value using the given formatter. Read more

impl<'tcx> Debug for TraitRef<'tcx>
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Formats the value using the given formatter.