Struct ModuleRegistry 

pub struct ModuleRegistry { /* private fields */ }

Ordered collection of registered modules.

Implementations

impl ModuleRegistry

pub fn new() -> Self

pub fn register(&mut self, module: impl Module) -> &mut Self

Registers a module. Registration order breaks ties in the ordering, so foundational modules register first.

pub fn register_boxed(&mut self, module: Box<dyn Module>) -> &mut Self

Registers an already-boxed module, for callers assembling a Vec<Box<dyn Module>> (the built-in set, an app’s plugins).

pub fn has(&self, id: ModuleId) -> bool

Whether a module with this id is registered.

pub fn get(&self, id: ModuleId) -> Option<&dyn Module>

The registered module with this id, if any.

pub fn iter(&self) -> impl Iterator<Item = &dyn Module> + '_

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn ordered(&self) -> CoreResult<Vec<&dyn Module>>

The registered modules in dependency order (a module after every module it requires); registration order breaks ties. Errors on a duplicate id, a required module that is not registered, or a cycle. This is the canonical order for both migrations and registration.

pub fn ordered_migration_sets(&self) -> CoreResult<Vec<MigrationSet>>

Every module’s MigrationSet in dependency order. Feed the result to migration::run.

Trait Implementations

impl Default for ModuleRegistry

fn default() -> Self

Returns the “default value” for a type.