Struct ExtraBounds 

struct ExtraBounds {
    impl_bounds: Vec<TokenStream>,
    where_predicates: Vec<TokenStream>,
}

Extra trait bounds inferred from method signatures.

For generic traits and methods that reference Self or associated types, the generated shim and vtable builder functions need additional bounds beyond __ImplT: TraitName. This struct collects those bounds.

Fields

impl_bounds: Vec<TokenStream>

Bounds added directly to __ImplT (e.g., IntoR when methods return Self, or TypedExternal + Send + 'static when methods take &Self parameters).

where_predicates: Vec<TokenStream>

Where clause predicates for complex types (e.g., <__ImplT as Trait>::Item: IntoR or Vec<T>: TryFromSexp).

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: 48 bytes