[pypy-svn] r69987 - pypy/branch/listcopyop/pypy/rpython/memory/gctransform

[fijal at codespeak.net]

Author: fijal
Date: Tue Dec  8 17:16:16 2009
New Revision: 69987

Modified:
   pypy/branch/listcopyop/pypy/rpython/memory/gctransform/framework.py
Log:
complain loud if gc needs write barrier but does not provide
writebarrier_before_copy


Modified: pypy/branch/listcopyop/pypy/rpython/memory/gctransform/framework.py
==============================================================================
--- pypy/branch/listcopyop/pypy/rpython/memory/gctransform/framework.py	(original)
+++ pypy/branch/listcopyop/pypy/rpython/memory/gctransform/framework.py	Tue Dec  8 17:16:16 2009
@@ -296,6 +296,8 @@
             self.wb_before_copy_ptr = \
                     getfn(GCClass.writebarrier_before_copy.im_func,
                     [s_gc] + [annmodel.SomeAddress()] * 2, annmodel.s_None)
+        elif GCClass.needs_write_barrier:
+            raise NotImplementedError("GC needs write barrier, but does not provide writebarrier_before_copy functionality")
 
         # in some GCs we can inline the common case of
         # malloc_fixedsize(typeid, size, True, False, False)