buildRustCrate: support proc-macro in default prelude

2020-04-13 16:01:21 +02:00
parent 9e2a52f239
commit a9fdfebc6b
2 changed files with 15 additions and 0 deletions
@@ -412,6 +412,18 @@ let
              "test ignore_main ... ok"
            ];
          };
+      procMacroInPrelude = {
+        procMacro = true;
+        edition = "2018";
+        src = symlinkJoin {
+          name = "proc-macro-in-prelude";
+          paths = [
+            (mkFile "src/lib.rs" ''
+              use proc_macro::TokenTree;
+            '')
+          ];
+        };
+      };
    };
    brotliCrates = (callPackage ./brotli-crates.nix {});
    tests = lib.mapAttrs (key: value: mkTest (value // lib.optionalAttrs (!value?crateName) { crateName = key; })) cases;