[pypy-svn] r69530 - pypy/extradoc/planning

[arigo at codespeak.net]

Author: arigo
Date: Mon Nov 23 11:38:22 2009
New Revision: 69530

Modified:
   pypy/extradoc/planning/jit.txt
Log:
Add a sentence.


Modified: pypy/extradoc/planning/jit.txt
==============================================================================
--- pypy/extradoc/planning/jit.txt	(original)
+++ pypy/extradoc/planning/jit.txt	Mon Nov 23 11:38:22 2009
@@ -144,6 +144,9 @@
    virtuals.  Probably implemented by having them point to a
    stub object that contains the stack position and the index
    of the virtual in the list of virtuals.  If we need to
-   access its content, we force it as above.
+   access its content, we force it as above.  For this to work,
+   we must make sure that no reference to such a stub can live
+   longer than the residual call -- either we are sure that it
+   dies, or we have forced it.
 
 Open question: how can this be done on CLI?