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use ra_syntax::{ast, SyntaxNode, TreeArc};
use crate::{
Module, ModuleSource, Problem,
Name,
module_tree::ModuleId,
nameres::lower::ImportId,
HirDatabase, PersistentHirDatabase,
HirFileId
};
impl Module {
fn with_module_id(&self, module_id: ModuleId) -> Module {
Module { module_id, krate: self.krate }
}
pub(crate) fn name_impl(&self, db: &impl HirDatabase) -> Option<Name> {
let module_tree = db.module_tree(self.krate);
let link = self.module_id.parent_link(&module_tree)?;
Some(link.name(&module_tree).clone())
}
pub(crate) fn definition_source_impl(
&self,
db: &impl PersistentHirDatabase,
) -> (HirFileId, ModuleSource) {
let module_tree = db.module_tree(self.krate);
let file_id = self.module_id.file_id(&module_tree);
let decl_id = self.module_id.decl_id(&module_tree);
let module_source = ModuleSource::new(db, file_id, decl_id);
(file_id, module_source)
}
pub(crate) fn declaration_source_impl(
&self,
db: &impl HirDatabase,
) -> Option<(HirFileId, TreeArc<ast::Module>)> {
let module_tree = db.module_tree(self.krate);
let link = self.module_id.parent_link(&module_tree)?;
let file_id = link.owner(&module_tree).file_id(&module_tree);
let src = link.source(&module_tree, db);
Some((file_id, src))
}
pub(crate) fn import_source_impl(
&self,
db: &impl HirDatabase,
import: ImportId,
) -> TreeArc<ast::PathSegment> {
let source_map = db.lower_module_source_map(*self);
let (_, source) = self.definition_source(db);
source_map.get(&source, import)
}
pub(crate) fn crate_root_impl(&self, db: &impl PersistentHirDatabase) -> Module {
let module_tree = db.module_tree(self.krate);
let module_id = self.module_id.crate_root(&module_tree);
self.with_module_id(module_id)
}
/// Finds a child module with the specified name.
pub(crate) fn child_impl(&self, db: &impl HirDatabase, name: &Name) -> Option<Module> {
let module_tree = db.module_tree(self.krate);
let child_id = self.module_id.child(&module_tree, name)?;
Some(self.with_module_id(child_id))
}
/// Iterates over all child modules.
pub(crate) fn children_impl(
&self,
db: &impl PersistentHirDatabase,
) -> impl Iterator<Item = Module> {
let module_tree = db.module_tree(self.krate);
let children = self
.module_id
.children(&module_tree)
.map(|(_, module_id)| self.with_module_id(module_id))
.collect::<Vec<_>>();
children.into_iter()
}
pub(crate) fn parent_impl(&self, db: &impl PersistentHirDatabase) -> Option<Module> {
let module_tree = db.module_tree(self.krate);
let parent_id = self.module_id.parent(&module_tree)?;
Some(self.with_module_id(parent_id))
}
pub(crate) fn problems_impl(
&self,
db: &impl HirDatabase,
) -> Vec<(TreeArc<SyntaxNode>, Problem)> {
let module_tree = db.module_tree(self.krate);
self.module_id.problems(&module_tree, db)
}
}
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