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from pypy.interpreter.error import oefmt
from rpython.rtyper.lltypesystem import rffi
from rpython.rlib.rarithmetic import r_singlefloat, r_longfloat
from rpython.rlib.rbigint import rbigint
from pypy.module._cffi_backend import newtype
# Mixins to refactor type-specific codef from converter and executor classes
# (in converter.py and executor.py, respectively). To get the right mixin, a
# non-RPython function typeid() is used.
class State(object):
def __init__(self, space):
nt = newtype # module from _cffi_backend
# builtin types
self.c_void = nt.new_void_type(space)
self.c_bool = nt.new_primitive_type(space, '_Bool')
self.c_char = nt.new_primitive_type(space, 'char')
self.c_uchar = nt.new_primitive_type(space, 'unsigned char')
self.c_short = nt.new_primitive_type(space, 'short')
self.c_ushort = nt.new_primitive_type(space, 'unsigned short')
self.c_int = nt.new_primitive_type(space, 'int')
self.c_uint = nt.new_primitive_type(space, 'unsigned int')
self.c_long = nt.new_primitive_type(space, 'long')
self.c_ulong = nt.new_primitive_type(space, 'unsigned long')
self.c_llong = nt.new_primitive_type(space, 'long long')
self.c_ullong = nt.new_primitive_type(space, 'unsigned long long')
self.c_float = nt.new_primitive_type(space, 'float')
self.c_double = nt.new_primitive_type(space, 'double')
self.c_ldouble = nt.new_primitive_type(space, 'long double')
# pointer types
self.c_ccharp = nt.new_pointer_type(space, self.c_char)
self.c_voidp = nt.new_pointer_type(space, self.c_void)
# special types
self.c_size_t = nt.new_primitive_type(space, 'size_t')
self.c_ptrdiff_t = nt.new_primitive_type(space, 'ptrdiff_t')
class BoolTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.UCHAR
c_ptrtype = rffi.UCHARP
def _wrap_object(self, space, obj):
return space.newbool(bool(ord(rffi.cast(rffi.CHAR, obj))))
def _unwrap_object(self, space, w_obj):
arg = space.c_int_w(w_obj)
if arg != False and arg != True:
raise oefmt(space.w_ValueError,
"boolean value should be bool, or integer 1 or 0")
return arg
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_bool
class CharTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.CHAR
c_ptrtype = rffi.CCHARP # there's no such thing as rffi.CHARP
def _wrap_object(self, space, obj):
return space.newbytes(obj)
def _unwrap_object(self, space, w_value):
# allow int to pass to char and make sure that str is of length 1
if space.isinstance_w(w_value, space.w_int):
ival = space.c_int_w(w_value)
if ival < -128 or 127 < ival:
raise oefmt(space.w_ValueError, "char arg not in range(-128,128)")
value = rffi.cast(rffi.CHAR, space.c_int_w(w_value))
else:
if space.isinstance_w(w_value, space.w_text):
value = space.text_w(w_value)
else:
value = space.bytes_w(w_value)
if len(value) != 1:
raise oefmt(space.w_ValueError,
"char expected, got string of size %d", len(value))
value = rffi.cast(rffi.CHAR, value[0])
return value # turn it into a "char" to the annotator
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_char
class UCharTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.UCHAR
c_ptrtype = rffi.CCHARP # there's no such thing as rffi.UCHARP
def _wrap_object(self, space, obj):
return space.newbytes(obj)
def _unwrap_object(self, space, w_value):
# allow int to pass to char and make sure that str is of length 1
if space.isinstance_w(w_value, space.w_int):
ival = space.c_int_w(w_value)
if ival < 0 or 256 <= ival:
raise oefmt(space.w_ValueError, "char arg not in range(256)")
value = rffi.cast(rffi.CHAR, space.c_int_w(w_value))
else:
if space.isinstance_w(w_value, space.w_text):
value = space.text_w(w_value)
else:
value = space.bytes_w(w_value)
if len(value) != 1:
raise oefmt(space.w_ValueError,
"unsigned char expected, got string of size %d", len(value))
value = rffi.cast(rffi.CHAR, value[0])
return value # turn it into a "char" to the annotator
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_char
class BaseIntTypeMixin(object):
_mixin_ = True
def _wrap_object(self, space, obj):
return space.newint(rffi.cast(rffi.INT, obj))
def _unwrap_object(self, space, w_obj):
return rffi.cast(self.c_type, space.c_int_w(w_obj))
class ShortTypeMixin(BaseIntTypeMixin):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.SHORT
c_ptrtype = rffi.SHORTP
class UShortTypeMixin(BaseIntTypeMixin):
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_short
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.USHORT
c_ptrtype = rffi.USHORTP
class IntTypeMixin(BaseIntTypeMixin):
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_ushort
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.INT
c_ptrtype = rffi.INTP
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_int
class UIntTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.UINT
c_ptrtype = rffi.UINTP
def _wrap_object(self, space, obj):
return space.newlong_from_rarith_int(obj)
def _unwrap_object(self, space, w_obj):
return rffi.cast(self.c_type, space.uint_w(w_obj))
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_uint
class LongTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.LONG
c_ptrtype = rffi.LONGP
def _wrap_object(self, space, obj):
return space.newlong(obj)
def _unwrap_object(self, space, w_obj):
return space.int_w(w_obj)
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_long
class ULongTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.ULONG
c_ptrtype = rffi.ULONGP
def _wrap_object(self, space, obj):
return space.newlong_from_rarith_int(obj)
def _unwrap_object(self, space, w_obj):
return space.uint_w(w_obj)
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_ulong
class LongLongTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.LONGLONG
c_ptrtype = rffi.LONGLONGP
def _wrap_object(self, space, obj):
return space.newlong_from_rarith_int(obj)
def _unwrap_object(self, space, w_obj):
return space.r_longlong_w(w_obj)
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_llong
class ULongLongTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype']
c_type = rffi.ULONGLONG
c_ptrtype = rffi.ULONGLONGP
def _wrap_object(self, space, obj):
return space.newlong_from_rarith_int(obj)
def _unwrap_object(self, space, w_obj):
return space.r_ulonglong_w(w_obj)
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_ullong
class FloatTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype', 'typecode']
c_type = rffi.FLOAT
c_ptrtype = rffi.FLOATP
typecode = 'f'
def _unwrap_object(self, space, w_obj):
return r_singlefloat(space.float_w(w_obj))
def _wrap_object(self, space, obj):
return space.newfloat(float(obj))
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_float
class DoubleTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype', 'typecode']
c_type = rffi.DOUBLE
c_ptrtype = rffi.DOUBLEP
typecode = 'd'
def _wrap_object(self, space, obj):
return space.newfloat(obj)
def _unwrap_object(self, space, w_obj):
return space.float_w(w_obj)
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_double
class LongDoubleTypeMixin(object):
_mixin_ = True
_immutable_fields_ = ['c_type', 'c_ptrtype', 'typecode']
c_type = rffi.LONGDOUBLE
# c_ptrtype = rffi.LONGDOUBLEP # useless type at this point
c_ptrtype = rffi.VOIDP
typecode = 'g'
# long double is not really supported ...
def _unwrap_object(self, space, w_obj):
return r_longfloat(space.float_w(w_obj))
def _wrap_object(self, space, obj):
return space.newfloat(obj)
def cffi_type(self, space):
state = space.fromcache(State)
return state.c_ldouble
def typeid(c_type):
"NOT_RPYTHON"
if c_type == bool: return BoolTypeMixin
if c_type == rffi.CHAR: return CharTypeMixin
if c_type == rffi.UCHAR: return UCharTypeMixin
if c_type == rffi.SHORT: return ShortTypeMixin
if c_type == rffi.USHORT: return UShortTypeMixin
if c_type == rffi.INT: return IntTypeMixin
if c_type == rffi.UINT: return UIntTypeMixin
if c_type == rffi.LONG: return LongTypeMixin
if c_type == rffi.ULONG: return ULongTypeMixin
if c_type == rffi.LONGLONG: return LongLongTypeMixin
if c_type == rffi.ULONGLONG: return ULongLongTypeMixin
if c_type == rffi.FLOAT: return FloatTypeMixin
if c_type == rffi.DOUBLE: return DoubleTypeMixin
if c_type == rffi.LONGDOUBLE: return LongDoubleTypeMixin
# should never get here
raise TypeError("unknown rffi type: %s" % c_type)
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