[pypy-commit] pypy py3k: hg merge default

amauryfa noreply at buildbot.pypy.org
Sun Feb 5 23:32:35 CET 2012


Author: Amaury Forgeot d'Arc <amauryfa at gmail.com>
Branch: py3k
Changeset: r52118:4c6488c2ca14
Date: 2012-02-05 19:52 +0100
http://bitbucket.org/pypy/pypy/changeset/4c6488c2ca14/

Log:	hg merge default

diff --git a/pypy/annotation/annrpython.py b/pypy/annotation/annrpython.py
--- a/pypy/annotation/annrpython.py
+++ b/pypy/annotation/annrpython.py
@@ -93,6 +93,10 @@
         # make input arguments and set their type
         args_s = [self.typeannotation(t) for t in input_arg_types]
 
+        # XXX hack
+        annmodel.TLS.check_str_without_nul = (
+            self.translator.config.translation.check_str_without_nul)
+
         flowgraph, inputcells = self.get_call_parameters(function, args_s, policy)
         if not isinstance(flowgraph, FunctionGraph):
             assert isinstance(flowgraph, annmodel.SomeObject)
diff --git a/pypy/annotation/model.py b/pypy/annotation/model.py
--- a/pypy/annotation/model.py
+++ b/pypy/annotation/model.py
@@ -39,7 +39,9 @@
 DEBUG = False    # set to False to disable recording of debugging information
 
 class State(object):
-    pass
+    # A global attribute :-(  Patch it with 'True' to enable checking of
+    # the no_nul attribute...
+    check_str_without_nul = False
 TLS = State()
 
 class SomeObject(object):
@@ -225,9 +227,7 @@
     def __init__(self):
         pass
 
-class SomeString(SomeObject):
-    "Stands for an object which is known to be a string."
-    knowntype = str
+class SomeStringOrUnicode(SomeObject):
     immutable = True
     can_be_None=False
     no_nul = False  # No NUL character in the string.
@@ -241,27 +241,29 @@
     def can_be_none(self):
         return self.can_be_None
 
+    def __eq__(self, other):
+        if self.__class__ is not other.__class__:
+            return False
+        d1 = self.__dict__
+        d2 = other.__dict__
+        if not TLS.check_str_without_nul:
+            d1 = d1.copy(); d1['no_nul'] = 0   # ignored
+            d2 = d2.copy(); d2['no_nul'] = 0   # ignored
+        return d1 == d2
+
+class SomeString(SomeStringOrUnicode):
+    "Stands for an object which is known to be a string."
+    knowntype = str
+
     def nonnoneify(self):
         return SomeString(can_be_None=False, no_nul=self.no_nul)
 
-class SomeUnicodeString(SomeObject):
+class SomeUnicodeString(SomeStringOrUnicode):
     "Stands for an object which is known to be an unicode string"
     knowntype = unicode
-    immutable = True
-    can_be_None=False
-    no_nul = False
-
-    def __init__(self, can_be_None=False, no_nul=False):
-        if can_be_None:
-            self.can_be_None = True
-        if no_nul:
-            self.no_nul = True
-
-    def can_be_none(self):
-        return self.can_be_None
 
     def nonnoneify(self):
-        return SomeUnicodeString(can_be_None=False)
+        return SomeUnicodeString(can_be_None=False, no_nul=self.no_nul)
 
 class SomeChar(SomeString):
     "Stands for an object known to be a string of length 1."
@@ -740,15 +742,6 @@
         s_obj = new_s_obj
     return s_obj
 
-def remove_no_nul(s_obj):
-    if not getattr(s_obj, 'no_nul', False):
-        return s_obj
-    new_s_obj = SomeObject.__new__(s_obj.__class__)
-    new_s_obj.__dict__ = s_obj.__dict__.copy()
-    del new_s_obj.no_nul
-    return new_s_obj
-    
-
 # ____________________________________________________________
 # internal
 
diff --git a/pypy/rpython/extfunc.py b/pypy/rpython/extfunc.py
--- a/pypy/rpython/extfunc.py
+++ b/pypy/rpython/extfunc.py
@@ -152,15 +152,7 @@
         assert len(args_s) == len(signature_args),\
                "Argument number mismatch"
 
-        check_no_nul = False
-        if hasattr(self, 'bookkeeper'):
-            config = self.bookkeeper.annotator.translator.config
-            if config.translation.check_str_without_nul:
-                check_no_nul = True
-            
         for i, expected in enumerate(signature_args):
-            if not check_no_nul:
-                expected = annmodel.remove_no_nul(expected)
             arg = annmodel.unionof(args_s[i], expected)
             if not expected.contains(arg):
                 name = getattr(self, 'name', None)
diff --git a/pypy/rpython/lltypesystem/ll2ctypes.py b/pypy/rpython/lltypesystem/ll2ctypes.py
--- a/pypy/rpython/lltypesystem/ll2ctypes.py
+++ b/pypy/rpython/lltypesystem/ll2ctypes.py
@@ -1036,13 +1036,8 @@
     libraries = eci.testonly_libraries + eci.libraries + eci.frameworks
 
     FUNCTYPE = lltype.typeOf(funcptr).TO
-    if not libraries:
-        cfunc = get_on_lib(standard_c_lib, funcname)
-        # XXX magic: on Windows try to load the function from 'kernel32' too
-        if cfunc is None and hasattr(ctypes, 'windll'):
-            cfunc = get_on_lib(ctypes.windll.kernel32, funcname)
-    else:
-        cfunc = None
+    cfunc = None
+    if libraries:
         not_found = []
         for libname in libraries:
             libpath = None
@@ -1075,6 +1070,12 @@
                 not_found.append(libname)
 
     if cfunc is None:
+        cfunc = get_on_lib(standard_c_lib, funcname)
+        # XXX magic: on Windows try to load the function from 'kernel32' too
+        if cfunc is None and hasattr(ctypes, 'windll'):
+            cfunc = get_on_lib(ctypes.windll.kernel32, funcname)
+
+    if cfunc is None:
         # function name not found in any of the libraries
         if not libraries:
             place = 'the standard C library (missing libraries=...?)'
diff --git a/pypy/rpython/test/test_extfunc.py b/pypy/rpython/test/test_extfunc.py
--- a/pypy/rpython/test/test_extfunc.py
+++ b/pypy/rpython/test/test_extfunc.py
@@ -187,3 +187,23 @@
         raises(Exception, a.build_types, g, [str])
         a.build_types(g, [str0])  # Does not raise
 
+    def test_list_of_str0(self):
+        str0 = annmodel.SomeString(no_nul=True)
+        def os_execve(l):
+            pass
+        register_external(os_execve, [[str0]], None)
+        def f(l):
+            return os_execve(l)
+        policy = AnnotatorPolicy()
+        policy.allow_someobjects = False
+        a = RPythonAnnotator(policy=policy)
+        a.build_types(f, [[str]])  # Does not raise
+        assert a.translator.config.translation.check_str_without_nul == False
+        # Now enable the str0 check, and try again with a similar function
+        a.translator.config.translation.check_str_without_nul=True
+        def g(l):
+            return os_execve(l)
+        raises(Exception, a.build_types, g, [[str]])
+        a.build_types(g, [[str0]])  # Does not raise
+        
+


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