1 files changed, 16 insertions, 0 deletions
diff --git a/modules/llvm.py b/modules/llvm.py
index 2ce4994..8d549fd 100644
--- a/modules/llvm.py
+++ b/modules/llvm.py
@@ -165,6 +165,22 @@ class LLVMSourceConfig(object):
         # Visit LLVM last, in case getting the enabled subprojects errors out.
         action(self.llvmSourceTree.repodir)
 
+    def for_each_subproj(self, action):
+        """Perform the given action for each subproject excluding LLVM.
+
+        The action must be a callable object receiving an LLVMSubproject
+        parameter and a boolean representing whether the subproject is enabled
+        in the current configuration or not.
+
+        If the action throws an exception, it will be rethrown as a
+        RuntimeError. Note that this does not have transactional behaviour.
+        """
+        for subprojName, subproj in self.subprojs.items():
+            try:
+                action(subproj, self.__is_enabled(subprojName))
+            except Exception as exc:
+                raise RuntimeError("Error while processing {}".format(subprojName)) from exc
+
     def __get_subproj_object(self, subprojName):
         """Get the LLVMSubproject object corresponding to subprojName."""
         if not subprojName in list(self.subprojs.keys()):