本文整理汇总了Python中pypy.module._cffi_backend.ctypeobj.W_CType.string方法的典型用法代码示例。如果您正苦于以下问题：Python W_CType.string方法的具体用法？Python W_CType.string怎么用？Python W_CType.string使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pypy.module._cffi_backend.ctypeobj.W_CType的用法示例。
在下文中一共展示了W_CType.string方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: string
# 需要导入模块: from pypy.module._cffi_backend.ctypeobj import W_CType [as 别名]
# 或者: from pypy.module._cffi_backend.ctypeobj.W_CType import string [as 别名]
def string(self, cdataobj, maxlen):
space = self.space
if isinstance(self.ctitem, ctypeprim.W_CTypePrimitive):
cdata = cdataobj._cdata
if not cdata:
raise operationerrfmt(space.w_RuntimeError,
"cannot use string() on %s",
space.str_w(cdataobj.repr()))
#
from pypy.module._cffi_backend import ctypearray
length = maxlen
if length < 0 and isinstance(self, ctypearray.W_CTypeArray):
length = cdataobj.get_array_length()
#
# pointer to a primitive type of size 1: builds and returns a str
if self.ctitem.size == rffi.sizeof(lltype.Char):
if length < 0:
s = rffi.charp2str(cdata)
else:
s = rffi.charp2strn(cdata, length)
keepalive_until_here(cdataobj)
return space.wrap(s)
#
# pointer to a wchar_t: builds and returns a unicode
if self.is_unichar_ptr_or_array():
cdata = rffi.cast(rffi.CWCHARP, cdata)
if length < 0:
u = rffi.wcharp2unicode(cdata)
else:
u = rffi.wcharp2unicoden(cdata, length)
keepalive_until_here(cdataobj)
return space.wrap(u)
#
return W_CType.string(self, cdataobj, maxlen)示例2: string
# 需要导入模块: from pypy.module._cffi_backend.ctypeobj import W_CType [as 别名]
# 或者: from pypy.module._cffi_backend.ctypeobj.W_CType import string [as 别名]
def string(self, cdataobj, maxlen):
if self.size == 1:
with cdataobj as ptr:
s = ptr[0]
return self.space.wrap(s)
return W_CType.string(self, cdataobj, maxlen)示例3: string
# 需要导入模块: from pypy.module._cffi_backend.ctypeobj import W_CType [as 别名]
# 或者: from pypy.module._cffi_backend.ctypeobj.W_CType import string [as 别名]
def string(self, cdataobj, maxlen):
if self.size == 1:
s = cdataobj._cdata[0]
keepalive_until_here(cdataobj)
return self.space.wrap(s)
return W_CType.string(self, cdataobj, maxlen)示例4: string
# 需要导入模块: from pypy.module._cffi_backend.ctypeobj import W_CType [as 别名]
# 或者: from pypy.module._cffi_backend.ctypeobj.W_CType import string [as 别名]
def string(self, cdataobj, maxlen):
# Can't use ffi.string() on a function pointer
return W_CType.string(self, cdataobj, maxlen)