Struct DependencyContainer 

pub struct DependencyContainer { /* private fields */ }

A container for managing dependencies and their builders.

It support two types of registrations:

Providers:

Providers are pre-created objects that you want to register directly into the container. For example, you might have a database connection or external service client that you need to build beforehand and inject into other Dependencies.

Components

Are types that has no need to be pre-created. Instead, you register the type itself, and the container will use the Component trait to build them when needed, resolving their dependencies automatically.

Implementations

impl DependencyContainer

pub fn new() -> Self

pub fn provider_registry(&self) -> &ProviderRegistry

pub fn component_registry(&self) -> &ComponentRegistry

pub fn build_all(&self, state: &State) -> Result<(), DIError>

Builds all registered components in dependency order.

This internal method performs the following steps:

1. Registers all provider instances in the State
2. Performs topological sorting on the dependency graph
3. Constructs components recursively in the correct order
4. Detects circular dependencies and returns an error if found

This method is called internally during application initialization.

Trait Implementations

impl Default for DependencyContainer

fn default() -> Self

Returns the “default value” for a type.