Enum rustc_middle::middle::stability::EvalResult[−][src]

pub enum EvalResult {
    Allow,
    Deny {
        feature: Symbol,
        reason: Option<Symbol>,
        issue: Option<NonZeroU32>,
        is_soft: bool,
    },
    Unmarked,
}
Expand description

Result of TyCtxt::eval_stability.

Variants

Allow

We can use the item because it is stable or we provided the corresponding feature gate.

Deny

We cannot use the item because it is unstable and we did not provide the corresponding feature gate.

Fields of Deny

feature: Symbolreason: Option<Symbol>issue: Option<NonZeroU32>is_soft: bool
Unmarked

The item does not have the #[stable] or #[unstable] marker assigned.

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

Performs the conversion.

Performs the conversion.

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.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes

Size for each variant: