Anchor file-system operations to the file, and not to the source root.

Anchoring to the SourceRoot wont' work if the path is absolute:

  #[path = "/tmp/foo.rs"]
  mod foo;

Anchoring to a file will.

However, we *should* anchor, instead of just producing an abs path.

I can imagine a situation where, for example, rust-analyzer processes
crates from different machines (or, for example, from in-memory git
branch), where the same absolute path in different crates might refer
to different files in the end!

1 files changed, 1 insertions, 2 deletions

diff --git a/crates/ra_hir_def/src/diagnostics.rs b/crates/ra_hir_def/src/diagnostics.rs
index 510c5e064..30db48f86 100644
--- a/crates/ra_hir_def/src/diagnostics.rs
+++ b/crates/ra_hir_def/src/diagnostics.rs
@@ -3,7 +3,6 @@
 use std::any::Any;
 
 use hir_expand::diagnostics::Diagnostic;
-use ra_db::RelativePathBuf;
 use ra_syntax::{ast, AstPtr, SyntaxNodePtr};
 
 use hir_expand::{HirFileId, InFile};
@@ -12,7 +11,7 @@ use hir_expand::{HirFileId, InFile};
 pub struct UnresolvedModule {
     pub file: HirFileId,
     pub decl: AstPtr<ast::Module>,
-    pub candidate: RelativePathBuf,
+    pub candidate: String,
 }
 
 impl Diagnostic for UnresolvedModule {