feat: add RUST_SRC_PATH in case we can detect it (numtide#246)

ciiqr · Feb 26, 2023 · 7389b00 · 7389b00
1 parent 71e3022
commit 7389b00
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/extra/language/rust.nix b/extra/language/rust.nix
@@ -58,6 +58,14 @@ with lib;
         # append in case it needs to be modified
         eval = "\"-L framework=$DEVSHELL_DIR/Library/Frameworks\"";
       }
+    ]
+    # fenix provides '.rust-src' in the 'complete' toolchain configuration
+    ++ lib.optionals (cfg.enableDefaultToolchain && cfg.packageSet ? rust-src) [
+      {
+        # rust-analyzer may use this to quicker find the rust source
+        name = "RUST_SRC_PATH";
+        value = "${cfg.packageSet.rust-src}/lib/rustlib/src/rust/library";
+      }
     ];
   };
 }