[pypy-svn] r50561 - pypy/branch/applevel-ctypes2/pypy/lib/_ctypes

[fijal at codespeak.net]

Author: fijal
Date: Sun Jan 13 17:03:38 2008
New Revision: 50561

Added:
   pypy/branch/applevel-ctypes2/pypy/lib/_ctypes/array.py   (contents, props changed)
Log:
(arigo, fijal) Add array file as well


Added: pypy/branch/applevel-ctypes2/pypy/lib/_ctypes/array.py
==============================================================================
--- (empty file)
+++ pypy/branch/applevel-ctypes2/pypy/lib/_ctypes/array.py	Sun Jan 13 17:03:38 2008
@@ -0,0 +1,45 @@
+
+import _ffi
+
+from _ctypes.basics import _CData
+
+class ArrayMeta(type):
+    def __new__(self, name, cls, typedict):
+        res = type.__new__(self, name, cls, typedict)
+        res._ffiletter = 'P'
+        if '_type_' in typedict:
+            ffiarray = _ffi.Array(typedict['_type_']._ffiletter)
+            res._ffiarray = ffiarray
+        else:
+            res._ffiarray = None
+        return res
+
+class Array(_CData):
+    __metaclass__ = ArrayMeta
+
+    def __init__(self, *args):
+        self._array = self._ffiarray(self._length_)
+        for i, arg in enumerate(args):
+            self[i] = arg
+
+    def __setitem__(self, item, value):
+        xxx
+
+    def __getitem__(self, item):
+        xxx
+
+ARRAY_CACHE = {}
+
+def create_array_type(base, length):
+    key = (base, length)
+    try:
+        return ARRAY_CACHE[key]
+    except KeyError:
+        name = "%s_Array_%d" % (base.__name__, length)
+        tpdict = dict(
+            _length_ = length,
+            _type_ = base
+        )
+        cls = ArrayMeta(name, (Array,), tpdict)
+        ARRAY_CACHE[key] = cls
+        return cls