Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

425 lines (377 sloc) 21.466 kb
#
# Builtin Definitions
#
from __future__ import absolute_import
from .Symtab import BuiltinScope, StructOrUnionScope
from .Code import UtilityCode
from .TypeSlots import Signature
from . import PyrexTypes
from . import Options
# C-level implementations of builtin types, functions and methods
iter_next_utility_code = UtilityCode.load("IterNext", "ObjectHandling.c")
getattr_utility_code = UtilityCode.load("GetAttr", "ObjectHandling.c")
getattr3_utility_code = UtilityCode.load("GetAttr3", "Builtins.c")
pyexec_utility_code = UtilityCode.load("PyExec", "Builtins.c")
pyexec_globals_utility_code = UtilityCode.load("PyExecGlobals", "Builtins.c")
globals_utility_code = UtilityCode.load("Globals", "Builtins.c")
builtin_utility_code = {
}
# mapping from builtins to their C-level equivalents
class _BuiltinOverride(object):
def __init__(self, py_name, args, ret_type, cname, py_equiv="*",
utility_code=None, sig=None, func_type=None,
is_strict_signature=False, builtin_return_type=None):
self.py_name, self.cname, self.py_equiv = py_name, cname, py_equiv
self.args, self.ret_type = args, ret_type
self.func_type, self.sig = func_type, sig
self.builtin_return_type = builtin_return_type
self.is_strict_signature = is_strict_signature
self.utility_code = utility_code
def build_func_type(self, sig=None, self_arg=None):
if sig is None:
sig = Signature(self.args, self.ret_type)
sig.exception_check = False # not needed for the current builtins
func_type = sig.function_type(self_arg)
if self.is_strict_signature:
func_type.is_strict_signature = True
if self.builtin_return_type:
func_type.return_type = builtin_types[self.builtin_return_type]
return func_type
class BuiltinAttribute(object):
def __init__(self, py_name, cname=None, field_type=None, field_type_name=None):
self.py_name = py_name
self.cname = cname or py_name
self.field_type_name = field_type_name # can't do the lookup before the type is declared!
self.field_type = field_type
def declare_in_type(self, self_type):
if self.field_type_name is not None:
# lazy type lookup
field_type = builtin_scope.lookup(self.field_type_name).type
else:
field_type = self.field_type or PyrexTypes.py_object_type
entry = self_type.scope.declare(self.py_name, self.cname, field_type, None, 'private')
entry.is_variable = True
class BuiltinFunction(_BuiltinOverride):
def declare_in_scope(self, scope):
func_type, sig = self.func_type, self.sig
if func_type is None:
func_type = self.build_func_type(sig)
scope.declare_builtin_cfunction(self.py_name, func_type, self.cname,
self.py_equiv, self.utility_code)
class BuiltinMethod(_BuiltinOverride):
def declare_in_type(self, self_type):
method_type, sig = self.func_type, self.sig
if method_type is None:
# override 'self' type (first argument)
self_arg = PyrexTypes.CFuncTypeArg("", self_type, None)
self_arg.not_none = True
self_arg.accept_builtin_subtypes = True
method_type = self.build_func_type(sig, self_arg)
self_type.scope.declare_builtin_cfunction(
self.py_name, method_type, self.cname, utility_code=self.utility_code)
builtin_function_table = [
# name, args, return, C API func, py equiv = "*"
BuiltinFunction('abs', "d", "d", "fabs",
is_strict_signature = True),
BuiltinFunction('abs', "f", "f", "fabsf",
is_strict_signature = True),
BuiltinFunction('abs', None, None, "__Pyx_abs_int",
utility_code = UtilityCode.load("abs_int", "Builtins.c"),
func_type = PyrexTypes.CFuncType(
PyrexTypes.c_uint_type, [
PyrexTypes.CFuncTypeArg("arg", PyrexTypes.c_int_type, None)
],
is_strict_signature = True)),
BuiltinFunction('abs', None, None, "__Pyx_abs_long",
utility_code = UtilityCode.load("abs_long", "Builtins.c"),
func_type = PyrexTypes.CFuncType(
PyrexTypes.c_ulong_type, [
PyrexTypes.CFuncTypeArg("arg", PyrexTypes.c_long_type, None)
],
is_strict_signature = True)),
BuiltinFunction('abs', None, None, "__Pyx_abs_longlong",
utility_code = UtilityCode.load("abs_longlong", "Builtins.c"),
func_type = PyrexTypes.CFuncType(
PyrexTypes.c_ulonglong_type, [
PyrexTypes.CFuncTypeArg("arg", PyrexTypes.c_longlong_type, None)
],
is_strict_signature = True)),
BuiltinFunction('abs', "O", "O", "PyNumber_Absolute"),
#('all', "", "", ""),
#('any', "", "", ""),
#('ascii', "", "", ""),
#('bin', "", "", ""),
BuiltinFunction('callable', "O", "b", "__Pyx_PyCallable_Check",
utility_code = UtilityCode.load("CallableCheck", "ObjectHandling.c")),
#('chr', "", "", ""),
#('cmp', "", "", "", ""), # int PyObject_Cmp(PyObject *o1, PyObject *o2, int *result)
#('compile', "", "", ""), # PyObject* Py_CompileString( char *str, char *filename, int start)
BuiltinFunction('delattr', "OO", "r", "PyObject_DelAttr"),
BuiltinFunction('dir', "O", "O", "PyObject_Dir"),
BuiltinFunction('divmod', "OO", "O", "PyNumber_Divmod"),
BuiltinFunction('exec', "O", "O", "__Pyx_PyExecGlobals",
utility_code = pyexec_globals_utility_code),
BuiltinFunction('exec', "OO", "O", "__Pyx_PyExec2",
utility_code = pyexec_utility_code),
BuiltinFunction('exec', "OOO", "O", "__Pyx_PyExec3",
utility_code = pyexec_utility_code),
#('eval', "", "", ""),
#('execfile', "", "", ""),
#('filter', "", "", ""),
BuiltinFunction('getattr3', "OOO", "O", "__Pyx_GetAttr3", "getattr",
utility_code=getattr3_utility_code), # Pyrex legacy
BuiltinFunction('getattr', "OOO", "O", "__Pyx_GetAttr3",
utility_code=getattr3_utility_code),
BuiltinFunction('getattr', "OO", "O", "__Pyx_GetAttr",
utility_code=getattr_utility_code),
BuiltinFunction('hasattr', "OO", "b", "PyObject_HasAttr"),
BuiltinFunction('hash', "O", "h", "PyObject_Hash"),
#('hex', "", "", ""),
#('id', "", "", ""),
#('input', "", "", ""),
BuiltinFunction('intern', "O", "O", "__Pyx_Intern",
utility_code = UtilityCode.load("Intern", "Builtins.c")),
BuiltinFunction('isinstance', "OO", "b", "PyObject_IsInstance"),
BuiltinFunction('issubclass', "OO", "b", "PyObject_IsSubclass"),
BuiltinFunction('iter', "OO", "O", "PyCallIter_New"),
BuiltinFunction('iter', "O", "O", "PyObject_GetIter"),
BuiltinFunction('len', "O", "z", "PyObject_Length"),
BuiltinFunction('locals', "", "O", "__pyx_locals"),
#('map', "", "", ""),
#('max', "", "", ""),
#('min', "", "", ""),
BuiltinFunction('next', "O", "O", "__Pyx_PyIter_Next",
utility_code = iter_next_utility_code), # not available in Py2 => implemented here
BuiltinFunction('next', "OO", "O", "__Pyx_PyIter_Next2",
utility_code = iter_next_utility_code), # not available in Py2 => implemented here
#('oct', "", "", ""),
#('open', "ss", "O", "PyFile_FromString"), # not in Py3
] + [
BuiltinFunction('ord', None, None, "__Pyx_long_cast",
func_type=PyrexTypes.CFuncType(
PyrexTypes.c_long_type, [PyrexTypes.CFuncTypeArg("c", c_type, None)],
is_strict_signature=True))
for c_type in [PyrexTypes.c_py_ucs4_type, PyrexTypes.c_py_unicode_type]
] + [
BuiltinFunction('ord', None, None, "__Pyx_uchar_cast",
func_type=PyrexTypes.CFuncType(
PyrexTypes.c_uchar_type, [PyrexTypes.CFuncTypeArg("c", c_type, None)],
is_strict_signature=True))
for c_type in [PyrexTypes.c_char_type, PyrexTypes.c_schar_type, PyrexTypes.c_uchar_type]
] + [
BuiltinFunction('ord', None, None, "__Pyx_PyObject_Ord",
utility_code=UtilityCode.load_cached("object_ord", "Builtins.c"),
func_type=PyrexTypes.CFuncType(
PyrexTypes.c_long_type, [
PyrexTypes.CFuncTypeArg("c", PyrexTypes.py_object_type, None)
],
exception_value="(long)(Py_UCS4)-1")),
BuiltinFunction('pow', "OOO", "O", "PyNumber_Power"),
BuiltinFunction('pow', "OO", "O", "__Pyx_PyNumber_Power2",
utility_code = UtilityCode.load("pow2", "Builtins.c")),
#('range', "", "", ""),
#('raw_input', "", "", ""),
#('reduce', "", "", ""),
BuiltinFunction('reload', "O", "O", "PyImport_ReloadModule"),
BuiltinFunction('repr', "O", "O", "PyObject_Repr", builtin_return_type='str'),
#('round', "", "", ""),
BuiltinFunction('setattr', "OOO", "r", "PyObject_SetAttr"),
#('sum', "", "", ""),
#('sorted', "", "", ""),
#('type', "O", "O", "PyObject_Type"),
#('unichr', "", "", ""),
#('unicode', "", "", ""),
#('vars', "", "", ""),
#('zip', "", "", ""),
# Can't do these easily until we have builtin type entries.
#('typecheck', "OO", "i", "PyObject_TypeCheck", False),
#('issubtype', "OO", "i", "PyType_IsSubtype", False),
# Put in namespace append optimization.
BuiltinFunction('__Pyx_PyObject_Append', "OO", "O", "__Pyx_PyObject_Append"),
]
if not Options.old_style_globals:
builtin_function_table.append(
BuiltinFunction('globals', "", "O", "__Pyx_Globals",
utility_code=globals_utility_code))
# Builtin types
# bool
# buffer
# classmethod
# dict
# enumerate
# file
# float
# int
# list
# long
# object
# property
# slice
# staticmethod
# super
# str
# tuple
# type
# xrange
builtin_types_table = [
("type", "PyType_Type", []),
# This conflicts with the C++ bool type, and unfortunately
# C++ is too liberal about PyObject* <-> bool conversions,
# resulting in unintuitive runtime behavior and segfaults.
# ("bool", "PyBool_Type", []),
("int", "PyInt_Type", []),
("long", "PyLong_Type", []),
("float", "PyFloat_Type", []),
("complex", "PyComplex_Type", [BuiltinAttribute('cval', field_type_name = 'Py_complex'),
BuiltinAttribute('real', 'cval.real', field_type = PyrexTypes.c_double_type),
BuiltinAttribute('imag', 'cval.imag', field_type = PyrexTypes.c_double_type),
]),
("basestring", "PyBaseString_Type", [
BuiltinMethod("join", "TO", "T", "__Pyx_PyBaseString_Join",
utility_code=UtilityCode.load("StringJoin", "StringTools.c")),
]),
("bytearray", "PyByteArray_Type", [
]),
("bytes", "PyBytes_Type", [BuiltinMethod("__contains__", "TO", "b", "PySequence_Contains"),
BuiltinMethod("join", "TO", "O", "__Pyx_PyBytes_Join",
utility_code=UtilityCode.load("StringJoin", "StringTools.c")),
]),
("str", "PyString_Type", [BuiltinMethod("__contains__", "TO", "b", "PySequence_Contains"),
BuiltinMethod("join", "TO", "O", "__Pyx_PyString_Join",
builtin_return_type='basestring',
utility_code=UtilityCode.load("StringJoin", "StringTools.c")),
]),
("unicode", "PyUnicode_Type", [BuiltinMethod("__contains__", "TO", "b", "PyUnicode_Contains"),
BuiltinMethod("join", "TO", "T", "PyUnicode_Join"),
]),
("tuple", "PyTuple_Type", [BuiltinMethod("__contains__", "TO", "b", "PySequence_Contains"),
]),
("list", "PyList_Type", [BuiltinMethod("__contains__", "TO", "b", "PySequence_Contains"),
BuiltinMethod("insert", "TzO", "r", "PyList_Insert"),
BuiltinMethod("reverse", "T", "r", "PyList_Reverse"),
BuiltinMethod("append", "TO", "r", "__Pyx_PyList_Append",
utility_code=UtilityCode.load("ListAppend", "Optimize.c")),
BuiltinMethod("extend", "TO", "r", "__Pyx_PyList_Extend",
utility_code=UtilityCode.load("ListExtend", "Optimize.c")),
]),
("dict", "PyDict_Type", [BuiltinMethod("__contains__", "TO", "b", "PyDict_Contains"),
BuiltinMethod("has_key", "TO", "b", "PyDict_Contains"),
BuiltinMethod("items", "T", "O", "__Pyx_PyDict_Items",
utility_code=UtilityCode.load("py_dict_items", "Builtins.c")),
BuiltinMethod("keys", "T", "O", "__Pyx_PyDict_Keys",
utility_code=UtilityCode.load("py_dict_keys", "Builtins.c")),
BuiltinMethod("values", "T", "O", "__Pyx_PyDict_Values",
utility_code=UtilityCode.load("py_dict_values", "Builtins.c")),
BuiltinMethod("iteritems", "T", "O", "__Pyx_PyDict_IterItems",
utility_code=UtilityCode.load("py_dict_iteritems", "Builtins.c")),
BuiltinMethod("iterkeys", "T", "O", "__Pyx_PyDict_IterKeys",
utility_code=UtilityCode.load("py_dict_iterkeys", "Builtins.c")),
BuiltinMethod("itervalues", "T", "O", "__Pyx_PyDict_IterValues",
utility_code=UtilityCode.load("py_dict_itervalues", "Builtins.c")),
BuiltinMethod("viewitems", "T", "O", "__Pyx_PyDict_ViewItems",
utility_code=UtilityCode.load("py_dict_viewitems", "Builtins.c")),
BuiltinMethod("viewkeys", "T", "O", "__Pyx_PyDict_ViewKeys",
utility_code=UtilityCode.load("py_dict_viewkeys", "Builtins.c")),
BuiltinMethod("viewvalues", "T", "O", "__Pyx_PyDict_ViewValues",
utility_code=UtilityCode.load("py_dict_viewvalues", "Builtins.c")),
BuiltinMethod("clear", "T", "r", "__Pyx_PyDict_Clear",
utility_code=UtilityCode.load("py_dict_clear", "Optimize.c")),
BuiltinMethod("copy", "T", "T", "PyDict_Copy")]),
("slice", "PySlice_Type", [BuiltinAttribute('start'),
BuiltinAttribute('stop'),
BuiltinAttribute('step'),
]),
# ("file", "PyFile_Type", []), # not in Py3
("set", "PySet_Type", [BuiltinMethod("__contains__", "TO", "b", "PySequence_Contains"),
BuiltinMethod("clear", "T", "r", "PySet_Clear"),
# discard() and remove() have a special treatment for unhashable values
# BuiltinMethod("discard", "TO", "r", "PySet_Discard"),
BuiltinMethod("update", "TO", "r", "__Pyx_PySet_Update",
utility_code=UtilityCode.load_cached("PySet_Update", "Builtins.c")),
BuiltinMethod("add", "TO", "r", "PySet_Add"),
BuiltinMethod("pop", "T", "O", "PySet_Pop")]),
("frozenset", "PyFrozenSet_Type", []),
]
types_that_construct_their_instance = set([
# some builtin types do not always return an instance of
# themselves - these do:
'type', 'bool', 'long', 'float', 'complex',
'bytes', 'unicode', 'bytearray',
'tuple', 'list', 'dict', 'set', 'frozenset'
# 'str', # only in Py3.x
# 'file', # only in Py2.x
])
builtin_structs_table = [
('Py_buffer', 'Py_buffer',
[("buf", PyrexTypes.c_void_ptr_type),
("obj", PyrexTypes.py_object_type),
("len", PyrexTypes.c_py_ssize_t_type),
("itemsize", PyrexTypes.c_py_ssize_t_type),
("readonly", PyrexTypes.c_bint_type),
("ndim", PyrexTypes.c_int_type),
("format", PyrexTypes.c_char_ptr_type),
("shape", PyrexTypes.c_py_ssize_t_ptr_type),
("strides", PyrexTypes.c_py_ssize_t_ptr_type),
("suboffsets", PyrexTypes.c_py_ssize_t_ptr_type),
("smalltable", PyrexTypes.CArrayType(PyrexTypes.c_py_ssize_t_type, 2)),
("internal", PyrexTypes.c_void_ptr_type),
]),
('Py_complex', 'Py_complex',
[('real', PyrexTypes.c_double_type),
('imag', PyrexTypes.c_double_type),
])
]
# set up builtin scope
builtin_scope = BuiltinScope()
def init_builtin_funcs():
for bf in builtin_function_table:
bf.declare_in_scope(builtin_scope)
builtin_types = {}
def init_builtin_types():
global builtin_types
for name, cname, methods in builtin_types_table:
utility = builtin_utility_code.get(name)
if name == 'frozenset':
objstruct_cname = 'PySetObject'
elif name == 'bool':
objstruct_cname = None
else:
objstruct_cname = 'Py%sObject' % name.capitalize()
the_type = builtin_scope.declare_builtin_type(name, cname, utility, objstruct_cname)
builtin_types[name] = the_type
for method in methods:
method.declare_in_type(the_type)
def init_builtin_structs():
for name, cname, attribute_types in builtin_structs_table:
scope = StructOrUnionScope(name)
for attribute_name, attribute_type in attribute_types:
scope.declare_var(attribute_name, attribute_type, None,
attribute_name, allow_pyobject=True)
builtin_scope.declare_struct_or_union(
name, "struct", scope, 1, None, cname = cname)
def init_builtins():
init_builtin_structs()
init_builtin_types()
init_builtin_funcs()
builtin_scope.declare_var(
'__debug__', PyrexTypes.c_const_type(PyrexTypes.c_bint_type),
pos=None, cname='(!Py_OptimizeFlag)', is_cdef=True)
global list_type, tuple_type, dict_type, set_type, frozenset_type
global bytes_type, str_type, unicode_type, basestring_type, slice_type
global float_type, bool_type, type_type, complex_type, bytearray_type
type_type = builtin_scope.lookup('type').type
list_type = builtin_scope.lookup('list').type
tuple_type = builtin_scope.lookup('tuple').type
dict_type = builtin_scope.lookup('dict').type
set_type = builtin_scope.lookup('set').type
frozenset_type = builtin_scope.lookup('frozenset').type
slice_type = builtin_scope.lookup('slice').type
bytes_type = builtin_scope.lookup('bytes').type
str_type = builtin_scope.lookup('str').type
unicode_type = builtin_scope.lookup('unicode').type
basestring_type = builtin_scope.lookup('basestring').type
bytearray_type = builtin_scope.lookup('bytearray').type
float_type = builtin_scope.lookup('float').type
bool_type = builtin_scope.lookup('bool').type
complex_type = builtin_scope.lookup('complex').type
init_builtins()
Jump to Line
Something went wrong with that request. Please try again.