Struct GraphNode 

pub struct GraphNode {
    pub name: &'static str,
    pub dependencies: &'static [&'static str],
    pub scope: &'static str,
}

A node in the dependency graph representing an injectable type.

Each node corresponds to a type annotated with #[derive(Injectable)] and records its direct dependencies and scope.

Construction

Nodes are created by the proc macro from constructor parameter analysis:

// From:
#[injectable(ctor)]
pub async fn new(db: Inject<Database>, cache: Inject<Cache>) -> Self

// The macro generates:
GraphNode {
    name: "UserService",
    dependencies: &["Database", "Cache"],
    scope: "singleton",
}

Fields

name: &'static str

The fully qualified type name of this injectable.

dependencies: &'static [&'static str]

The type names of direct dependencies.

scope: &'static str

The scope of this injectable (“singleton” or “transient”).

Implementations

impl GraphNode

pub const fn new( name: &'static str, dependencies: &'static [&'static str], ) -> GraphNode

Create a new graph node with default singleton scope.

pub const fn leaf(name: &'static str) -> GraphNode

Create a graph node with no dependencies (singleton scope by default).

pub const fn with_scope( name: &'static str, dependencies: &'static [&'static str], scope: &'static str, ) -> GraphNode

Create a graph node with an explicit scope.

pub const fn leaf_with_scope( name: &'static str, scope: &'static str, ) -> GraphNode

Create a leaf graph node with an explicit scope.

pub fn is_leaf(&self) -> bool

Returns true if this node has no dependencies.

pub fn dependency_count(&self) -> usize

Returns the number of direct dependencies.

pub fn is_singleton(&self) -> bool

Returns true if this node is in singleton scope.

pub fn is_transient(&self) -> bool

Returns true if this node is in transient scope.

Trait Implementations

impl Clone for GraphNode

fn clone(&self) -> GraphNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Collect for GraphNode

impl Debug for GraphNode

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

Formats the value using the given formatter.

impl Eq for GraphNode

impl Hash for GraphNode

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for GraphNode

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GraphNode