133 lines
4.2 KiB
Cython
133 lines
4.2 KiB
Cython
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#################### FromPyStructUtility ####################
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cdef extern from *:
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ctypedef struct PyTypeObject:
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char* tp_name
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PyTypeObject *Py_TYPE(obj)
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bint PyMapping_Check(obj)
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object PyErr_Format(exc, const char *format, ...)
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@cname("{{funcname}}")
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cdef {{struct_type}} {{funcname}}(obj) except *:
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cdef {{struct_type}} result
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if not PyMapping_Check(obj):
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PyErr_Format(TypeError, b"Expected %.16s, got %.200s", b"a mapping", Py_TYPE(obj).tp_name)
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{{for member in var_entries:}}
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try:
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value = obj['{{member.name}}']
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except KeyError:
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raise ValueError("No value specified for struct attribute '{{member.name}}'")
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result.{{member.cname}} = value
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{{endfor}}
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return result
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#################### FromPyUnionUtility ####################
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cdef extern from *:
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ctypedef struct PyTypeObject:
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char* tp_name
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PyTypeObject *Py_TYPE(obj)
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bint PyMapping_Check(obj)
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object PyErr_Format(exc, const char *format, ...)
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@cname("{{funcname}}")
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cdef {{struct_type}} {{funcname}}(obj) except *:
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cdef {{struct_type}} result
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cdef Py_ssize_t length
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if not PyMapping_Check(obj):
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PyErr_Format(TypeError, b"Expected %.16s, got %.200s", b"a mapping", Py_TYPE(obj).tp_name)
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last_found = None
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length = len(obj)
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if length:
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{{for member in var_entries:}}
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if '{{member.name}}' in obj:
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if last_found is not None:
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raise ValueError("More than one union attribute passed: '%s' and '%s'" % (last_found, '{{member.name}}'))
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last_found = '{{member.name}}'
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result.{{member.cname}} = obj['{{member.name}}']
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length -= 1
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if not length:
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return result
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{{endfor}}
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if last_found is None:
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raise ValueError("No value specified for any of the union attributes (%s)" %
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'{{", ".join(member.name for member in var_entries)}}')
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return result
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#################### cfunc.to_py ####################
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@cname("{{cname}}")
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cdef object {{cname}}({{return_type.ctype}} (*f)({{ ', '.join(arg.type_cname for arg in args) }}) {{except_clause}}):
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def wrap({{ ', '.join('{arg.ctype} {arg.name}'.format(arg=arg) for arg in args) }}):
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"""wrap({{', '.join(('{arg.name}: {arg.type_displayname}'.format(arg=arg) if arg.type_displayname else arg.name) for arg in args)}}){{if return_type.type_displayname}} -> {{return_type.type_displayname}}{{endif}}"""
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{{'' if return_type.type.is_void else 'return '}}f({{ ', '.join(arg.name for arg in args) }})
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return wrap
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#################### carray.from_py ####################
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cdef extern from *:
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object PyErr_Format(exc, const char *format, ...)
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@cname("{{cname}}")
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cdef int {{cname}}(object o, {{base_type}} *v, Py_ssize_t length) except -1:
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cdef Py_ssize_t i = length
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try:
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i = len(o)
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except (TypeError, OverflowError):
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pass
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if i == length:
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for i, item in enumerate(o):
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if i >= length:
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break
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v[i] = item
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else:
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i += 1 # convert index to length
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if i == length:
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return 0
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PyErr_Format(
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IndexError,
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("too many values found during array assignment, expected %zd"
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if i >= length else
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"not enough values found during array assignment, expected %zd, got %zd"),
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length, i)
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#################### carray.to_py ####################
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cdef extern from *:
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void Py_INCREF(object o)
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tuple PyTuple_New(Py_ssize_t size)
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list PyList_New(Py_ssize_t size)
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void PyTuple_SET_ITEM(object p, Py_ssize_t pos, object o)
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void PyList_SET_ITEM(object p, Py_ssize_t pos, object o)
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@cname("{{cname}}")
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cdef inline list {{cname}}({{base_type}} *v, Py_ssize_t length):
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cdef size_t i
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cdef object value
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l = PyList_New(length)
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for i in range(<size_t>length):
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value = v[i]
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Py_INCREF(value)
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PyList_SET_ITEM(l, i, value)
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return l
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@cname("{{to_tuple_cname}}")
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cdef inline tuple {{to_tuple_cname}}({{base_type}} *v, Py_ssize_t length):
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cdef size_t i
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cdef object value
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t = PyTuple_New(length)
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for i in range(<size_t>length):
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value = v[i]
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Py_INCREF(value)
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PyTuple_SET_ITEM(t, i, value)
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return t
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