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use hir::{DefWithBody, HasSource, ModuleSource};
use ra_db::{FileId, SourceDatabase};
use ra_syntax::{AstNode, TextRange};
use crate::{
db::RootDatabase,
name_kind::{Declaration, NameKind},
};
pub struct SearchScope {
pub scope: Vec<(FileId, Option<TextRange>)>,
}
impl Declaration {
pub fn scope(self, db: &RootDatabase) -> Option<SearchScope> {
let module_src = self.container.definition_source(db);
let file_id = module_src.file_id.original_file(db);
if let NameKind::Pat((def, _)) = self.item {
let range = match def {
DefWithBody::Function(f) => f.source(db).ast.syntax().text_range(),
DefWithBody::Const(c) => c.source(db).ast.syntax().text_range(),
DefWithBody::Static(s) => s.source(db).ast.syntax().text_range(),
};
return Some(SearchScope { scope: vec![(file_id, Some(range))] });
}
if let Some(vis) = self.visibility {
let source_root_id = db.file_source_root(file_id);
let source_root = db.source_root(source_root_id);
let mut files = source_root.walk().map(|id| (id.into(), None)).collect::<Vec<_>>();
if vis.syntax().text() == "pub(crate)" {
return Some(SearchScope { scope: files });
}
if vis.syntax().text() == "pub" {
let krate = self.container.krate(db).unwrap();
let crate_graph = db.crate_graph();
for crate_id in crate_graph.iter() {
let mut crate_deps = crate_graph.dependencies(crate_id);
if crate_deps.any(|dep| dep.crate_id() == krate.crate_id()) {
let root_file = crate_graph.crate_root(crate_id);
let source_root_id = db.file_source_root(root_file);
let source_root = db.source_root(source_root_id);
files.extend(source_root.walk().map(|id| (id.into(), None)));
}
}
return Some(SearchScope { scope: files });
}
// FIXME: extend to "pub(super)" and "pub(in path)" cases,
// then remove `Option`
return None;
}
let range = match module_src.ast {
ModuleSource::Module(m) => Some(m.syntax().text_range()),
ModuleSource::SourceFile(_) => None,
};
Some(SearchScope { scope: vec![(file_id, range)] })
}
}
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