Struct ProviderDescriptor 

pub struct ProviderDescriptor {
    pub name: &'static str,
    pub type_id_fn: fn() -> TypeId,
    pub deps_fn: fn() -> Vec<TypeId>,
    pub build: fn(&Resolver<'_>) -> AnyProvider,
}

One row in the dependency graph.

deps_fn returns the declared dependency TypeIds. (We use a function pointer rather than a &'static [TypeId] because TypeId::of is not const on stable.)

Fields

name: &'static str

type_id_fn: fn() -> TypeId

deps_fn: fn() -> Vec<TypeId>

build: fn(&Resolver<'_>) -> AnyProvider