Struct RequirementSpec 

pub struct RequirementSpec {
    pub capability: &'static str,
    pub provider: &'static str,
}

One capability requirement and the object expected to provide it. 一条能力需求，以及本应提供它的对象。

Fields

capability: &'static str

Capability name that must be resolvable in the registry tree. 必须在注册树中可解析的能力名称。

provider: &'static str

Object expected to provide that capability; any other provider fails the check. 本应提供该能力的对象；由其他对象提供即判定失败。

Trait Implementations

impl Clone for RequirementSpec

fn clone(&self) -> RequirementSpec

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for RequirementSpec

impl Debug for RequirementSpec

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for RequirementSpec

impl PartialEq for RequirementSpec

fn eq(&self, other: &RequirementSpec) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for RequirementSpec