110 lines
3.2 KiB
Rust
110 lines
3.2 KiB
Rust
//! FIXME: write short doc here
|
|
|
|
use ra_db::{CrateId, FileId, FilePosition, SourceDatabase};
|
|
use ra_ide_db::RootDatabase;
|
|
use ra_syntax::{
|
|
algo::find_node_at_offset,
|
|
ast::{self, AstNode},
|
|
};
|
|
|
|
use crate::NavigationTarget;
|
|
|
|
/// This returns `Vec` because a module may be included from several places. We
|
|
/// don't handle this case yet though, so the Vec has length at most one.
|
|
pub(crate) fn parent_module(db: &RootDatabase, position: FilePosition) -> Vec<NavigationTarget> {
|
|
let mut sb = hir::SourceBinder::new(db);
|
|
let parse = db.parse(position.file_id);
|
|
let module = match find_node_at_offset::<ast::Module>(parse.tree().syntax(), position.offset) {
|
|
Some(module) => sb.to_def(hir::InFile::new(position.file_id.into(), module)),
|
|
None => sb.to_module_def(position.file_id),
|
|
};
|
|
let module = match module {
|
|
None => return Vec::new(),
|
|
Some(it) => it,
|
|
};
|
|
let nav = NavigationTarget::from_module_to_decl(db, module);
|
|
vec![nav]
|
|
}
|
|
|
|
/// Returns `Vec` for the same reason as `parent_module`
|
|
pub(crate) fn crate_for(db: &RootDatabase, file_id: FileId) -> Vec<CrateId> {
|
|
let mut sb = hir::SourceBinder::new(db);
|
|
let module = match sb.to_module_def(file_id) {
|
|
Some(it) => it,
|
|
None => return Vec::new(),
|
|
};
|
|
let krate = module.krate();
|
|
vec![krate.into()]
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use ra_cfg::CfgOptions;
|
|
use ra_db::Env;
|
|
|
|
use crate::{
|
|
mock_analysis::{analysis_and_position, MockAnalysis},
|
|
AnalysisChange, CrateGraph,
|
|
Edition::Edition2018,
|
|
};
|
|
|
|
#[test]
|
|
fn test_resolve_parent_module() {
|
|
let (analysis, pos) = analysis_and_position(
|
|
"
|
|
//- /lib.rs
|
|
mod foo;
|
|
//- /foo.rs
|
|
<|>// empty
|
|
",
|
|
);
|
|
let nav = analysis.parent_module(pos).unwrap().pop().unwrap();
|
|
nav.assert_match("foo MODULE FileId(1) [0; 8)");
|
|
}
|
|
|
|
#[test]
|
|
fn test_resolve_parent_module_for_inline() {
|
|
let (analysis, pos) = analysis_and_position(
|
|
"
|
|
//- /lib.rs
|
|
mod foo {
|
|
mod bar {
|
|
mod baz { <|> }
|
|
}
|
|
}
|
|
",
|
|
);
|
|
let nav = analysis.parent_module(pos).unwrap().pop().unwrap();
|
|
nav.assert_match("baz MODULE FileId(1) [32; 44)");
|
|
}
|
|
|
|
#[test]
|
|
fn test_resolve_crate_root() {
|
|
let mock = MockAnalysis::with_files(
|
|
"
|
|
//- /bar.rs
|
|
mod foo;
|
|
//- /foo.rs
|
|
// empty <|>
|
|
",
|
|
);
|
|
let root_file = mock.id_of("/bar.rs");
|
|
let mod_file = mock.id_of("/foo.rs");
|
|
let mut host = mock.analysis_host();
|
|
assert!(host.analysis().crate_for(mod_file).unwrap().is_empty());
|
|
|
|
let mut crate_graph = CrateGraph::default();
|
|
let crate_id = crate_graph.add_crate_root(
|
|
root_file,
|
|
Edition2018,
|
|
CfgOptions::default(),
|
|
Env::default(),
|
|
);
|
|
let mut change = AnalysisChange::new();
|
|
change.set_crate_graph(crate_graph);
|
|
host.apply_change(change);
|
|
|
|
assert_eq!(host.analysis().crate_for(mod_file).unwrap(), vec![crate_id]);
|
|
}
|
|
}
|