Trait ModuleLoader

Source

pub trait ModuleLoader: Default {
    // Required methods
    fn load(
        &mut self,
        name: &Identifier,
        from: Option<FileId>,
        store: &mut impl ModuleStore,
        recursive: bool,
    ) -> Result<Identifier, Error>;
    fn resolver(&self) -> &impl ModuleResolver;
    fn get_file_id(&self, name: &Identifier) -> Option<FileId>;
    fn get_source(&self, file_id: FileId) -> Option<Source>;
    fn report(&self, diagnostic: &Diagnostic) -> Result<(), Error>;
    fn reporter_done(
        &self,
        top_module_name: Option<String>,
    ) -> Result<ReportCounters, Error>;
    fn set_severity_filter(&mut self, filter: SeverityFilter);

    // Provided methods
    fn get_source_by_name(&self, name: &Identifier) -> Option<Source> { ... }
    fn has_source(&self, file_id: FileId) -> bool { ... }
}

Expand description

A loader instance is responsible for resolving a module into a resource URL and parsing it into memory. Note that the loader does not return the module instance itself but rather the module’s name parsed from the resource, the module itself is inserted into the cache.

Required Methods§

Source

fn load( &mut self, name: &Identifier, from: Option<FileId>, store: &mut impl ModuleStore, recursive: bool, ) -> Result<Identifier, Error>

Resolve name into a resource identifier (URL) and parse into memory. The loader will check the store first to see if the module is already loaded, and will add the module into the store after parsing. The value of recursive tells the loader whether to also load the module’s dependencies as well.

Source