53 lines
1.4 KiB
Rust
53 lines
1.4 KiB
Rust
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use ra_db::{Cancelable, FilePosition};
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use crate::{NavigationTarget, db::RootDatabase};
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/// This returns `Vec` because a module may be included from several places. We
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/// don't handle this case yet though, so the Vec has length at most one.
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pub(crate) fn parent_module(
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db: &RootDatabase,
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position: FilePosition,
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) -> Cancelable<Vec<NavigationTarget>> {
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let module = match hir::source_binder::module_from_position(db, position)? {
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None => return Ok(Vec::new()),
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Some(it) => it,
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};
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let nav = NavigationTarget::from_module(db, module)?;
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Ok(vec![nav])
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}
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#[cfg(test)]
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mod tests {
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use crate::mock_analysis::analysis_and_position;
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#[test]
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fn test_resolve_parent_module() {
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let (analysis, pos) = analysis_and_position(
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"
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//- /lib.rs
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mod foo;
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//- /foo.rs
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<|>// empty
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",
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);
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let nav = analysis.parent_module(pos).unwrap().pop().unwrap();
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nav.assert_match("foo SOURCE_FILE FileId(2) [0; 10)");
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}
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#[test]
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fn test_resolve_parent_module_for_inline() {
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let (analysis, pos) = analysis_and_position(
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"
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//- /lib.rs
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mod foo {
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mod bar {
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mod baz { <|> }
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}
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}
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",
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);
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let nav = analysis.parent_module(pos).unwrap().pop().unwrap();
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nav.assert_match("baz MODULE FileId(1) [32; 44)");
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}
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}
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