build, interpreter: associate a doctest target to a BuildTarget

A doctest target is a separate build target (with its own linker
arguments, including dependencies) that is built and added as a
unit test whenever the parent target is built.  The doctest's
target is not accessible via ninja.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/mesonbuild/modules/rust.py b/mesonbuild/modules/rust.py
index c455ea227..873bc8929 100644
--- a/mesonbuild/modules/rust.py
+++ b/mesonbuild/modules/rust.py
@@ -29,6 +29,7 @@ if T.TYPE_CHECKING:
     from ..interpreter import Interpreter
     from ..interpreter import kwargs as _kwargs
     from ..interpreter.interpreter import SourceInputs, SourceOutputs
+    from ..interpreter.interpreterobjects import Test
     from ..programs import OverrideProgram
     from ..interpreter.type_checking import SourcesVarargsType
 
@@ -188,7 +189,7 @@ class RustModule(ExtensionModule):
             new_target_kwargs
         )
 
-        test = self.interpreter.make_test(
+        test: Test = self.interpreter.make_test(
             self.interpreter.current_node, (name, new_target), tkwargs)
 
         return ModuleReturnValue(None, [new_target, test])