[pypy-commit] pypy ffi-backend: nonstandard_integer_types().

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: ffi-backend
Changeset: r55725:f8d25c49148a
Date: 2012-06-19 19:32 +0200
http://bitbucket.org/pypy/pypy/changeset/f8d25c49148a/

Log:	nonstandard_integer_types().

diff --git a/pypy/module/_ffi_backend/__init__.py b/pypy/module/_ffi_backend/__init__.py
--- a/pypy/module/_ffi_backend/__init__.py
+++ b/pypy/module/_ffi_backend/__init__.py
@@ -5,5 +5,7 @@
     appleveldefs = {
         }
     interpleveldefs = {
+        'nonstandard_integer_types':
+                        'interp_extra_types.nonstandard_integer_types',
         'load_library': 'interp_library.load_library',
         }
diff --git a/pypy/module/_ffi_backend/interp_extra_types.py b/pypy/module/_ffi_backend/interp_extra_types.py
new file mode 100644
--- /dev/null
+++ b/pypy/module/_ffi_backend/interp_extra_types.py
@@ -0,0 +1,28 @@
+from pypy.rpython.lltypesystem import lltype, rffi
+
+
+UNSIGNED = 0x1000
+
+TYPES = [
+    ("int8_t",        1),
+    ("uint8_t",       1 | UNSIGNED),
+    ("int16_t",       2),
+    ("uint16_t",      2 | UNSIGNED),
+    ("int32_t",       4),
+    ("uint32_t",      4 | UNSIGNED),
+    ("int64_t",       8),
+    ("uint64_t",      8 | UNSIGNED),
+
+    ("intptr_t",      rffi.sizeof(rffi.INTPTR_T)),
+    ("uintptr_t",     rffi.sizeof(rffi.UINTPTR_T) | UNSIGNED),
+    ("ptrdiff_t",     rffi.sizeof(rffi.INTPTR_T)),   # XXX can it be different?
+    ("size_t",        rffi.sizeof(rffi.SIZE_T) | UNSIGNED),
+    ("ssize_t",       rffi.sizeof(rffi.SSIZE_T)),
+]
+
+
+def nonstandard_integer_types(space):
+    w_d = space.newdict()
+    for name, size in TYPES:
+        space.setitem(w_d, space.wrap(name), space.wrap(size))
+    return w_d
diff --git a/pypy/module/_ffi_backend/test/test_c.py b/pypy/module/_ffi_backend/test/test_c.py
--- a/pypy/module/_ffi_backend/test/test_c.py
+++ b/pypy/module/_ffi_backend/test/test_c.py
@@ -36,7 +36,7 @@
         assert repr(x).startswith("<clibrary '")
 
     def test_nonstandard_integer_types(self):
-        d = nonstandard_integer_types()
+        d = self.b.nonstandard_integer_types()
         assert type(d) is dict
         assert 'char' not in d
         assert d['size_t'] in (0x1004, 0x1008)