Author: Ronan Lamy <ronan.l...@gmail.com>
Branch: PyBuffer-backport
Changeset: r91196:97f60ebf3ec0
Date: 2017-05-06 20:42 +0100
http://bitbucket.org/pypy/pypy/changeset/97f60ebf3ec0/
Log: Add space.byte_w()
diff --git a/pypy/interpreter/baseobjspace.py b/pypy/interpreter/baseobjspace.py
--- a/pypy/interpreter/baseobjspace.py
+++ b/pypy/interpreter/baseobjspace.py
@@ -1654,6 +1654,23 @@
def fsencode_or_none_w(self, w_obj):
return None if self.is_none(w_obj) else self.fsencode_w(w_obj)
+ def byte_w(self, w_obj):
+ """
+ Convert an index-like object to an interp-level char
+
+ Used for app-level code like "bytearray(b'abc')[0] = 42".
+ """
+ if self.isinstance_w(w_obj, self.w_bytes):
+ string = self.bytes_w(w_obj)
+ if len(string) != 1:
+ raise oefmt(self.w_ValueError, "string must be of size 1")
+ return string[0]
+ value = self.getindex_w(w_obj, None)
+ if not 0 <= value < 256:
+ # this includes the OverflowError in case the long is too large
+ raise oefmt(self.w_ValueError, "byte must be in range(0, 256)")
+ return chr(value)
+
def int_w(self, w_obj, allow_conversion=True):
"""
Unwrap an app-level int object into an interpret-level int.
diff --git a/pypy/objspace/std/bytearrayobject.py
b/pypy/objspace/std/bytearrayobject.py
--- a/pypy/objspace/std/bytearrayobject.py
+++ b/pypy/objspace/std/bytearrayobject.py
@@ -415,7 +415,7 @@
else:
idx = space.getindex_w(w_index, space.w_IndexError,
"bytearray index")
- newvalue = getbytevalue(space, w_other)
+ newvalue = space.byte_w(w_other)
self._data[self._fixindex(space, idx)] = newvalue
def descr_delitem(self, space, w_idx):
@@ -442,7 +442,7 @@
_shrink_after_delete_from_start, self)
def descr_append(self, space, w_item):
- self._data.append(getbytevalue(space, w_item))
+ self._data.append(space.byte_w(w_item))
def descr_extend(self, space, w_other):
if isinstance(w_other, W_BytearrayObject):
@@ -452,10 +452,9 @@
def descr_insert(self, space, w_idx, w_other):
where = space.int_w(w_idx)
- val = getbytevalue(space, w_other)
data = self.getdata()
- length = len(data)
- index = get_positive_index(where, length)
+ index = get_positive_index(where, len(data))
+ val = space.byte_w(w_other)
data.insert(index, val)
@unwrap_spec(w_idx=WrappedDefault(-1))
@@ -552,20 +551,6 @@
# ____________________________________________________________
-def getbytevalue(space, w_value):
- if space.isinstance_w(w_value, space.w_bytes):
- string = space.bytes_w(w_value)
- if len(string) != 1:
- raise oefmt(space.w_ValueError, "string must be of size 1")
- return string[0]
-
- value = space.getindex_w(w_value, None)
- if not 0 <= value < 256:
- # this includes the OverflowError in case the long is too large
- raise oefmt(space.w_ValueError, "byte must be in range(0, 256)")
- return chr(value)
-
-
def new_bytearray(space, w_bytearraytype, data):
w_obj = space.allocate_instance(W_BytearrayObject, w_bytearraytype)
W_BytearrayObject.__init__(w_obj, data)
@@ -594,8 +579,7 @@
if not e.match(space, space.w_StopIteration):
raise
break
- value = getbytevalue(space, w_item)
- data.append(value)
+ data.append(space.byte_w(w_item))
extended += 1
if extended < length_hint:
resizelist_hint(data, extended)
diff --git a/pypy/objspace/std/test/test_memoryobject.py
b/pypy/objspace/std/test/test_memoryobject.py
--- a/pypy/objspace/std/test/test_memoryobject.py
+++ b/pypy/objspace/std/test/test_memoryobject.py
@@ -27,7 +27,8 @@
v[0:3] = v[2:5]
assert data == bytearray(eval("b'23f3fg'"))
exc = raises(ValueError, "v[2] = 'spam'")
- assert str(exc.value) == "cannot modify size of memoryview object"
+ assert str(exc.value) in ("cannot modify size of memoryview object",
+ "string must be of size 1")
exc = raises(NotImplementedError, "v[0:2:2] = 'spam'")
assert str(exc.value) == ""
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