[buck2][rust] prelude: Empty SharedLibraryInfo for prebuilt Rust li…

…braries Summary: Explained in a comment Test Plan: CI Reviewed By: dtolnay Differential Revision: D51290298 fbshipit-source-id: ed7fefa21f0cc1228893c785f178d2d452053be1
facebookincubator · Nov 15, 2023 · 3089bd5 · 3089bd5
1 parent 16e4fb1
commit 3089bd5
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/antlir/antlir2/features/defs.bzl b/antlir/antlir2/features/defs.bzl
@@ -28,10 +28,11 @@ def _impl(ctx: AnalysisContext) -> list[Provider]:
     link_info = ctx.attrs.lib[RustLinkInfo]
     lib_dir_map = {}
     for dep in link_info.exported_link_deps:
-        lib_dir_map.update({
-            soname: lib.lib.output
-            for soname, lib in dep[SharedLibraryInfo].set.value.libraries.items()
-        })
+        if dep[SharedLibraryInfo].set:
+            lib_dir_map.update({
+                soname: lib.lib.output
+                for soname, lib in dep[SharedLibraryInfo].set.value.libraries.items()
+            })
 
     ctx.actions.copied_dir(lib_dir, lib_dir_map)