[pypy-svn] r45983 - in pypy/branch/pypy-more-rtti-inprogress/rpython/tool: . test

[fijal at codespeak.net]

Author: fijal
Date: Sat Aug 25 15:58:38 2007
New Revision: 45983

Modified:
   pypy/branch/pypy-more-rtti-inprogress/rpython/tool/rfficache.py
   pypy/branch/pypy-more-rtti-inprogress/rpython/tool/test/test_rfficache.py
Log:
Add platform.has('xxx')


Modified: pypy/branch/pypy-more-rtti-inprogress/rpython/tool/rfficache.py
==============================================================================
--- pypy/branch/pypy-more-rtti-inprogress/rpython/tool/rfficache.py	(original)
+++ pypy/branch/pypy-more-rtti-inprogress/rpython/tool/rfficache.py	Sat Aug 25 15:58:38 2007
@@ -5,6 +5,7 @@
 
 import py
 import os
+import distutils
 from pypy.translator.tool.cbuild import build_executable
 from pypy.tool.udir import udir
 from pypy.tool.autopath import pypydir
@@ -60,6 +61,16 @@
     question = 'printf("%%d", %s);' % (c_def,)
     return int(ask_gcc(question, **kwds))
 
+def have_c_obj(c_obj, **kwds):
+    question = c_obj + ';'
+    try:
+        ask_gcc(question, **kwds)
+        return True
+    except distutils.errors.CompileError:
+        # parsing errors here and trying to deduce whether
+        # it's this or not sounds like an overkill
+        return False
+
 def create_cache_access_method(acc_func, meth_name):
     def method(self, name, **kwds):
         try:
@@ -116,6 +127,7 @@
     defined = create_cache_access_method(c_ifdefined, 'defined')
     intdefined = create_cache_access_method(c_defined_int, 'intdefined')
     sizeof = create_cache_access_method(sizeof_c_type, 'sizeof')
+    has = create_cache_access_method(have_c_obj, 'has')
 
     # optimal way of caching it, would be to store file on __del__,
     # but since we cannot rely on __del__ having all modules, let's

Modified: pypy/branch/pypy-more-rtti-inprogress/rpython/tool/test/test_rfficache.py
==============================================================================
--- pypy/branch/pypy-more-rtti-inprogress/rpython/tool/test/test_rfficache.py	(original)
+++ pypy/branch/pypy-more-rtti-inprogress/rpython/tool/test/test_rfficache.py	Sat Aug 25 15:58:38 2007
@@ -14,6 +14,10 @@
 def test_c_defined_int():
     assert c_defined_int('X', add_source='#define X 3') == 3
 
+def test_c_existing_symbol():
+    assert have_c_obj('X', add_source='int X(int, int, int);')
+    assert not have_c_obj('xxx')
+
 def test_rfficache():
     cache = RffiCache(udir.join('cache.py'))
     assert cache.inttype('uchar', 'unsigned char', False)._type.BITS == 8
@@ -38,3 +42,4 @@
         name = name.replace(' ', '')
         assert hasattr(rffi, 'r_' + name)
         assert hasattr(rffi, name.upper())
+