def do_pack_into(space, format, w_buffer, offset, args_w):
""" Pack the values v1, v2, ... according to fmt.
Write the packed bytes into the writable buffer buf starting at offset
"""
size = _calcsize(space, format)
buf = space.writebuf_w(w_buffer)
buflen = buf.getlength()
if offset < 0:
# Check that negative offset is low enough to fit data
if offset + size > 0:
raise oefmt(get_error(space),
"no space to pack %d bytes at offset %d", size, offset)
# Check that negative offset is not crossing buffer boundary
if offset + buflen < 0:
raise oefmt(get_error(space),
"offset %d out of range for %d-byte buffer", offset,
buflen)
offset += buflen
if (buflen - offset) < size:
raise oefmt(
get_error(space),
"pack_into requires a buffer of at least %d bytes for "
"packing %d bytes at offset %d "
"(actual buffer size is %d)", size + offset, size, offset, buflen)
#
wbuf = SubBuffer(buf, offset, size)
fmtiter = PackFormatIterator(space, wbuf, args_w)
try:
fmtiter.interpret(format)
except StructOverflowError as e:
raise OperationError(space.w_OverflowError, space.newtext(e.msg))
except StructError as e:
raise OperationError(get_error(space), space.newtext(e.msg))
def pack(space, format, args_w):
if jit.isconstant(format):
size = _calcsize(space, format)
else:
size = 8
fmtiter = PackFormatIterator(space, args_w, size)
try:
fmtiter.interpret(format)
except StructError, e:
raise e.at_applevel(space)
def pack(space, format, args_w):
if jit.isconstant(format):
size = _calcsize(space, format)
else:
size = 8
fmtiter = PackFormatIterator(space, args_w, size)
try:
fmtiter.interpret(format)
except StructOverflowError, e:
raise OperationError(space.w_OverflowError, space.wrap(e.msg))
def _pack(space, format, args_w):
if jit.isconstant(format):
size = _calcsize(space, format)
else:
size = 8
fmtiter = PackFormatIterator(space, args_w, size)
try:
fmtiter.interpret(format)
except StructOverflowError, e:
raise OperationError(space.w_OverflowError, space.wrap(e.msg))
def pack(space, format, args_w):
if jit.isconstant(format):
size = _calcsize(space, format)
else:
size = 8
fmtiter = PackFormatIterator(space, args_w, size)
try:
fmtiter.interpret(format)
except StructError, e:
raise e.at_applevel(space)
def bytes_from_value(self, space, w_val):
from pypy.module.struct.formatiterator import PackFormatIterator
itemsize = self.getitemsize()
buf = MutableStringBuffer(itemsize)
fmtiter = PackFormatIterator(space, buf, [w_val])
try:
fmtiter.interpret(self.getformat())
except StructError as e:
raise oefmt(space.w_TypeError,
"memoryview: invalid type for format '%s'",
self.getformat())
return buf.finish()
def _pack(space, format, args_w):
"""Return string containing values v1, v2, ... packed according to fmt."""
size = _calcsize(space, format)
wbuf = MutableStringBuffer(size)
fmtiter = PackFormatIterator(space, wbuf, args_w)
try:
fmtiter.interpret(format)
except StructOverflowError as e:
raise OperationError(space.w_OverflowError, space.newtext(e.msg))
except StructError as e:
raise OperationError(get_error(space), space.newtext(e.msg))
assert fmtiter.pos == wbuf.getlength(), 'missing .advance() or wrong calcsize()'
return wbuf.finish()
def _pack(space, format, args_w):
if jit.isconstant(format):
size = _calcsize(space, format)
else:
size = 8
fmtiter = PackFormatIterator(space, args_w, size)
try:
fmtiter.interpret(format)
except StructOverflowError as e:
raise OperationError(space.w_OverflowError, space.wrap(e.msg))
except StructError as e:
raise OperationError(get_error(space), space.wrap(e.msg))
return fmtiter.result.build()
def _pack(space, format, args_w):
if jit.isconstant(format):
size = _calcsize(space, format)
else:
size = 8
fmtiter = PackFormatIterator(space, args_w, size)
try:
fmtiter.interpret(format)
except StructOverflowError as e:
raise OperationError(space.w_OverflowError, space.newtext(e.msg))
except StructError as e:
raise OperationError(get_error(space), space.newtext(e.msg))
return fmtiter.result.build()
def _pack(space, format, args_w):
"""Return string containing values v1, v2, ... packed according to fmt."""
if jit.isconstant(format):
size = _calcsize(space, format)
else:
size = 8
fmtiter = PackFormatIterator(space, args_w, size)
try:
fmtiter.interpret(format)
except StructOverflowError as e:
raise OperationError(space.w_OverflowError, space.newtext(e.msg))
except StructError as e:
raise OperationError(get_error(space), space.newtext(e.msg))
return fmtiter.result.build()
def pack_into(space, format, w_buffer, offset, args_w):
""" Pack the values v1, v2, ... according to fmt.
Write the packed bytes into the writable buffer buf starting at offset
"""
size = _calcsize(space, format)
buf = space.getarg_w('w*', w_buffer)
if offset < 0:
offset += buf.getlength()
if offset < 0 or (buf.getlength() - offset) < size:
raise oefmt(get_error(space),
"pack_into requires a buffer of at least %d bytes", size)
#
wbuf = SubBuffer(buf, offset, size)
fmtiter = PackFormatIterator(space, wbuf, args_w)
try:
fmtiter.interpret(format)
except StructOverflowError as e:
raise OperationError(space.w_OverflowError, space.newtext(e.msg))
except StructError as e:
raise OperationError(get_error(space), space.newtext(e.msg))
def pack(space, format, args_w):
fmtiter = PackFormatIterator(space, args_w)
try:
fmtiter.interpret(format)
except StructError, e:
raise e.at_applevel(space)
def pack(space, format, args_w):
fmtiter = PackFormatIterator(space, args_w)
try:
fmtiter.interpret(format)
except StructError, e:
raise e.at_applevel(space)
