Struct ResolverHelper

pub struct ResolverHelper<F1, F2>(pub F1, pub F2)
where
    F1: FnMut(Path, PathBuf) -> Result<Option<File>, Error>,
    F2: FnMut(Meta) -> Result<bool, UserError>;

Helper struct to define Resolver implementations using closures.

Tuple Fields

0: F1

1: F2

Trait Implementations

impl<F1, F2> Resolver for ResolverHelper<F1, F2>

where F1: FnMut(Path, PathBuf) -> Result<Option<File>, Error>, F2: FnMut(Meta) -> Result<bool, UserError>,

fn resolve( &mut self, module_name: Path, path_relative_to_crate_root: PathBuf, ) -> Result<Option<File>, Error>

Called each time a non-inline module is encountered that needs to be expanded. module_name is full path from the specified file root to the module being expanded, to use for error messages.

fn check_cfg(&mut self, cfg: Meta) -> Result<bool, UserError>

When #[cfg(mymeta)] mod ...; or #[cfg_attr(mymeta,path=...)] is encountered, this function is called and you should provide answer whether this cfg should be considered true or false.

fn allow_duplicate_modules_and_convert_cfg(&mut self) -> bool

Include all the modules, possibly duplicating them. #[cfg_attr(...,path)] mod ...; are converted to #[cfg(...)] mod .. {}