fn import(
        &mut self,
        span: Span,
        module: &Arc<CompileMod>,
        item: &Item,
        used: Used,
    ) -> Result<Option<Item>, QueryError> {
        let mut visited = HashSet::<Item>::new();
        let mut path = Vec::new();
        let mut module = module.clone();
        let mut item = item.clone();
        let mut any_matched = false;

        'outer: loop {
            let mut cur = Item::new();
            let mut it = item.iter();

            while let Some(c) = it.next() {
                cur.push(c);

                let update = self.import_step(span, &module, &cur, used, &mut path)?;

                let update = match update {
                    Some(update) => update,
                    None => continue,
                };

                path.push(ImportEntryStep {
                    location: update.location,
                    item: update.target.clone(),
                });

                if !visited.insert(item.clone()) {
                    return Err(QueryError::new(span, QueryErrorKind::ImportCycle { path }));
                }

                module = update.module;
                item = update.target.join(it);
                any_matched = true;
                continue 'outer;
            }

            break;
        }

        if any_matched {
            return Ok(Some(item));
        }

        Ok(None)
    }
/// Get the given import by name.
Get the given import by name.
Get the given import by name .
fn import(
        &mut self,
        span: Span,
        module: &Arc<CompileMod>,
        item: &Item,
        used: Used,
    ) -> Result<Option<Item>, QueryError> {
        let mut visited = HashSet::<Item>::new();
        let mut path = Vec::new();
        let mut module = module.clone();
        let mut item = item.clone();
        let mut any_matched = false;
        'outer: loop {
            let mut cur = Item::new();
            let mut it = item.iter();
            while let Some(c) = it.next() {
                cur.push(c);
                let update = self.import_step(span, &module, &cur, used, &mut path)?;
                let update = match update {
                    Some(update) => update,
                    None => continue,
                };
                path.push(ImportEntryStep {
                    location: update.location,
                    item: update.target.clone(),
                });
                if !visited.insert(item.clone()) {
                    return Err(QueryError::new(span, QueryErrorKind::ImportCycle { path }));
                }
                module = update.module;
                item = update.target.join(it);
                any_matched = true;
                continue 'outer;
            }
            break;
        }
        if any_matched {
            return Ok(Some(item));
        }
        Ok(None)
    }
fn import ( & mut self , span : Span , module : & Arc < CompileMod > , item : & Item , used : Used , ) -> Result < Option < Item > , QueryError > { let mut visited = HashSet :: < Item > :: new ( ) ; let mut path = Vec :: new ( ) ; let mut module = module . clone ( ) ; let mut item = item . clone ( ) ; let mut any_matched = false ; ' outer : loop { let mut cur = Item :: new ( ) ; let mut it = item . iter ( ) ; while let Some ( c ) = it . next ( ) { cur . push ( c ) ; let update = self . import_step ( span , & module , & cur , used , & mut path ) ? ; let update = match update { Some ( update ) => update , None => continue , } ; path . push ( ImportEntryStep { location : update . location , item : update . target . clone ( ) , } ) ; if ! visited . insert ( item . clone ( ) ) { return Err ( QueryError :: new ( span , QueryErrorKind :: ImportCycle { path } ) ) ; } module = update . module ; item = update . target . join ( it ) ; any_matched = true ; continue ' outer ; } break ; } if any_matched { return Ok ( Some ( item ) ) ; } Ok ( None ) }
Get the given import by name.
Get the given import by name .
&mut self
span
Span
module
&Arc<CompileMod>
item
&Item
used
Used
&mut self
span
Span
module
&Arc<CompileMod>
item
&Item
used
Used