can now clone modules

test/clonemodule.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+
+# Import the llvm-py modules.
+from llvm import *
+from llvm.core import *
+
+import logging
+import unittest
+
+
+class TestCloneModule(unittest.TestCase):
+    def test_example(self):
+        my_module = Module.new('my_module')
+
+        ty_int = Type.int()   # by default 32 bits
+
+        ty_func = Type.function(ty_int, [ty_int, ty_int])
+
+        f_sum = my_module.add_function(ty_func, "sum")
+
+        self.assertEqual(str(f_sum).strip(), 'declare i32 @sum(i32, i32)')
+
+        f_sum.args[0].name = "a"
+        f_sum.args[1].name = "b"
+
+        bb = f_sum.append_basic_block("entry")
+
+        builder = Builder.new(bb)
+
+        tmp = builder.add(f_sum.args[0], f_sum.args[1], "tmp")
+
+        self.assertEqual(str(tmp).strip(), '%tmp = add i32 %a, %b')
+
+        builder.ret(tmp)
+
+        cloned = my_module.clone()
+
+        self.assertTrue(id(cloned) != id(my_module))
+        self.assertTrue(str(cloned) == str(my_module))
+        self.assertTrue(cloned == my_module)
+
+
+
+if __name__ == '__main__':
+    unittest.main()
+