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Add resolve_extern_path in DB

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This commit is contained in:
Edwin Cheng 2020-03-10 22:00:31 +08:00
parent 8153a0b3ef
commit 22f064cca7
5 changed files with 48 additions and 3 deletions
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18
crates/ra_db/src/lib.rs
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@ -11,7 +11,8 @@ use ra_syntax::{ast, Parse, SourceFile, TextRange, TextUnit};
pub use crate::{
cancellation::Canceled,
input::{
CrateGraph, CrateId, CrateName, Dependency, Edition, Env, FileId, SourceRoot, SourceRootId,
CrateGraph, CrateId, CrateName, Dependency, Edition, Env, ExternSourceId, FileId,
SourceRoot, SourceRootId,
},
};
pub use relative_path::{RelativePath, RelativePathBuf};
@ -87,6 +88,12 @@ pub trait FileLoader {
fn resolve_relative_path(&self, anchor: FileId, relative_path: &RelativePath)
-> Option<FileId>;
fn relevant_crates(&self, file_id: FileId) -> Arc<Vec<CrateId>>;
fn resolve_extern_path(
&self,
extern_id: ExternSourceId,
relative_path: &RelativePath,
) -> Option<FileId>;
}
/// Database which stores all significant input facts: source code and project
@ -164,4 +171,13 @@ impl<T: SourceDatabaseExt> FileLoader for FileLoaderDelegate<&'_ T> {
let source_root = self.0.file_source_root(file_id);
self.0.source_root_crates(source_root)
}
fn resolve_extern_path(
&self,
extern_id: ExternSourceId,
relative_path: &RelativePath,
) -> Option<FileId> {
let source_root = self.0.source_root(SourceRootId(extern_id.0));
source_root.file_by_relative_path(&relative_path)
}
}