Struct Router 

pub struct Router { /* private fields */ }

A resolver that can dispatch imports to several sub-resolvers based on the import path prefix.

Add sub-resolvers with Self::mount_resolver.

This resolver is not thread-safe (not Send or Sync).

Implementations

impl Router

Dispatches resolution of a module path to sub-resolvers.

See documentation in Self::mount_resolver

pub fn new() -> Self

Create a new resolver.

pub fn mount_resolver( &mut self, prefix: ModulePath, resolver: impl Resolver + 'static, )

Mount a resolver at a given path prefix.

All import paths starting with prefix will be dispatched to the resolver with the suffix of the path. The prefix path must have an Absolute or Package origin and the suffix path will be given an Absolute origin.

If none of the prefixes match, the fallback resolver will be used.

pub fn mount_fallback_resolver(&mut self, resolver: impl Resolver + 'static)

Mount a fallback resolver that is used when no other prefix match.

Trait Implementations

impl Default for Router

fn default() -> Self

Returns the “default value” for a type.

impl Resolver for Router

fn resolve_source<'a>( &'a self, path: &ModulePath, ) -> Result<Cow<'a, str>, ResolveError>

Try to resolve a source file identified by a module path.

fn display_name(&self, path: &ModulePath) -> Option<String>

Get the display name of the module path. Implementing this is optional.

fn fs_path(&self, path: &ModulePath) -> Result<PathBuf, ResolveError>

Get the filesystem path of the module path. Implementing this is optional.

fn canonical_path(&self, path: &ModulePath) -> ModulePath

Get the canonical form of a module path.

fn module_path(&self, _fs_path: &Path) -> Result<ModulePath, ResolveError>

Get the module path of the filesystem path. Implementing this is optional.