1 files changed, 48 insertions, 0 deletions
diff --git a/Source/cmCxxModuleMapper.h b/Source/cmCxxModuleMapper.h
new file mode 100644
index 0000000..99384c9
--- /dev/null
+++ b/Source/cmCxxModuleMapper.h
@@ -0,0 +1,48 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#pragma once
+
+#include "cmConfigure.h" // IWYU pragma: keep
+
+#include <functional>
+#include <string>
+
+#include <cm/optional>
+#include <cmext/string_view>
+
+struct cmScanDepInfo;
+
+enum class CxxModuleMapFormat
+{
+  Gcc,
+};
+
+struct CxxModuleLocations
+{
+  // The path from which all relative paths should be computed. If
+  // this is relative, it is relative to the compiler's working
+  // directory.
+  std::string RootDirectory;
+
+  // A function to convert a full path to a path for the generator.
+  std::function<std::string(std::string const&)> PathForGenerator;
+
+  // Lookup the BMI location of a logical module name.
+  std::function<cm::optional<std::string>(std::string const&)>
+    BmiLocationForModule;
+
+  // Returns the generator path (if known) for the BMI given a
+  // logical module name.
+  cm::optional<std::string> BmiGeneratorPathForModule(
+    std::string const& logical_name) const;
+};
+
+// Return the extension to use for a given modulemap format.
+cm::static_string_view CxxModuleMapExtension(
+  cm::optional<CxxModuleMapFormat> format);
+
+// Return the contents of the module map in the given format for the
+// object file.
+std::string CxxModuleMapContent(CxxModuleMapFormat format,
+                                CxxModuleLocations const& loc,
+                                cmScanDepInfo const& obj);