Module + import std From Imported Target

Author: Behemyth

cppython/plugins/conan/builder.py

@@ -124,6 +124,7 @@ def __init__(self) -> None:
     def _create_conanfile(conan_file: Path, dependencies: list[ConanDependency], name: str, version: str) -> None:
         """Creates a conanfile.py file with the necessary content."""
         template_string = """
+        import os
         from conan import ConanFile
         from conan.tools.cmake import CMake, CMakeDeps, CMakeToolchain, cmake_layout
         from conan.tools.files import copy
@@ -154,7 +155,10 @@ def package(self):
                 cmake.install()
 
             def package_info(self):
-                self.cpp_info.libs = ["${name}"]
+                # Use native CMake config files to preserve FILE_SET information
+                self.cpp_info.set_property("cmake_file_name", "${name}")
+                self.cpp_info.set_property("cmake_target_name", "${name}::${name}")
+                self.cpp_info.builddirs.append(os.path.join("lib", "cmake", "${name}"))
 
             def export_sources(self):
                 copy(self, "CMakeLists.txt", src=self.recipe_folder, dst=self.export_sources_folder)

examples/conan_cmake/library/test_package/CMakeLists.txt

@@ -1,9 +1,13 @@
 cmake_minimum_required(VERSION 4.0)
 
+# Enable std module support for MSVC - MUST be before project()
+set(CMAKE_EXPERIMENTAL_CXX_IMPORT_STD "d0edc3af-4c50-42ea-a356-e2862fe7a444")
+
 project(MathUtilsConsumer LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_MODULE_STD ON)
 
 find_package(mathutils REQUIRED)
 

examples/conan_cmake/library/test_package/conanfile.py

@@ -23,8 +23,12 @@ def layout(self):
     def generate(self):
         """Generate CMake dependencies and toolchain."""
         deps = CMakeDeps(self)
+        # Skip mathutils in CMakeDeps - use native CMake config files for C++ modules
+        deps.set_property('mathutils', 'cmake_find_mode', 'none')
         deps.generate()
         tc = CMakeToolchain(self)
+        # Use Ninja generator - Visual Studio generator doesn't support C++ modules yet
+        tc.generator = 'Ninja Multi-Config'
         tc.generate()
 
     def build(self):