# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1339707203 -7200
# Node ID e297c6ae4b7c228e7b207d6a30e167f688f4fbc2
# Parent  8dadbb830899f8e5fdc6b87a248f105ce81f9157
Added notes about the analysis of PyPy's interpreter code.

diff -r 8dadbb830899 -r e297c6ae4b7c docs/rpython.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docs/rpython.txt	Thu Jun 14 22:53:23 2012 +0200
@@ -0,0 +1,23 @@
+Analysis of the PyPy Interpreter
+================================
+
+Program used for analysis: pypy/pypy/bin/py.py
+
+Errors
+------
+
+Error in 'pypy.rpython.ootypesystem.ootype' at line 1048: Base class
+CallFunc(Name('_null_mixin'), [Name('_instance')], None, None)
+for 'pypy.rpython.ootypesystem.ootype._null_instance' is not found: it may be
+hidden in some way.
+
+  Fixed by redefining _null_mixin and parameterising it in subclasses that are then used.
+
+Error in 'pypy.annotation.binaryop' at line 64: Base class
+CallFunc(Name('pairtype'), [Name('SomeObject'), Name('SomeObject')], None, None)
+for 'pypy.annotation.binaryop.__extend__' is not found: it may be hidden in
+some way.
+
+  Caused by usage of pypy.tool.pairtype which uses the __new__ method.
+  Micropython does not support the metaclass tricks suggested in the offending
+  module.