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Pyston
Commit 89bbb329 authored by Kevin Modzelewski's avatar Kevin Modzelewski
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Import some CPython header files, and start modifying for Pyston

parent 258c3deb
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include/Python.h
View file @ 89bbb329
......@@ -17,29 +17,43 @@
#include <assert.h>
#include <errno.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include <string.h>
#include <limits.h>
#include "pyport.h"
// These include orders come from CPython:
#include "pymem.h"
#include "object.h"
#include "objimpl.h"
#include "intobject.h"
#include "boolobject.h"
#include "longobject.h"
#include "floatobject.h"
#include "stringobject.h"
#include "tupleobject.h"
#include "methodobject.h"
#include "descrobject.h"
#include "pyerrors.h"
#include "modsupport.h"
#include "abstract.h"
#ifdef __cplusplus
extern "C" {
#endif
bool PyArg_ParseTuple(PyObject*, const char*, ...);
PyObject* Py_BuildValue(const char*, ...);
typedef PyObject *(*PyCFunction)(PyObject *, PyObject *);
struct PyMethodDef {
const char *ml_name; /* The name of the built-in function/method */
PyCFunction ml_meth; /* The C function that implements it */
int ml_flags; /* Combination of METH_xxx flags, which mostly
describe the args expected by the C func */
const char *ml_doc; /* The __doc__ attribute, or NULL */
};
typedef struct PyMethodDef PyMethodDef;
PyObject* PyString_FromString(const char*);
PyObject* PyInt_FromLong(long);
......@@ -57,8 +71,6 @@ PyObject* PyDict_New(void);
#define PyDoc_STRVAR(name, str) PyDoc_VAR(name) = PyDoc_STR(str)
#define PyDoc_STR(str) str
#define METH_VARARGS 0x0001
#ifdef __cplusplus
#define PyMODINIT_FUNC extern "C" void
#else
......
include/abstract.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
#ifndef Py_ABSTRACTOBJECT_H
#define Py_ABSTRACTOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef PY_SSIZE_T_CLEAN
#define PyObject_CallFunction _PyObject_CallFunction_SizeT
#define PyObject_CallMethod _PyObject_CallMethod_SizeT
#endif
/* Abstract Object Interface (many thanks to Jim Fulton) */
/*
PROPOSAL: A Generic Python Object Interface for Python C Modules
Problem
Python modules written in C that must access Python objects must do
so through routines whose interfaces are described by a set of
include files. Unfortunately, these routines vary according to the
object accessed. To use these routines, the C programmer must check
the type of the object being used and must call a routine based on
the object type. For example, to access an element of a sequence,
the programmer must determine whether the sequence is a list or a
tuple:
if(is_tupleobject(o))
e=gettupleitem(o,i)
else if(is_listitem(o))
e=getlistitem(o,i)
If the programmer wants to get an item from another type of object
that provides sequence behavior, there is no clear way to do it
correctly.
The persistent programmer may peruse object.h and find that the
_typeobject structure provides a means of invoking up to (currently
about) 41 special operators. So, for example, a routine can get an
item from any object that provides sequence behavior. However, to
use this mechanism, the programmer must make their code dependent on
the current Python implementation.
Also, certain semantics, especially memory management semantics, may
differ by the type of object being used. Unfortunately, these
semantics are not clearly described in the current include files.
An abstract interface providing more consistent semantics is needed.
Proposal
I propose the creation of a standard interface (with an associated
library of routines and/or macros) for generically obtaining the
services of Python objects. This proposal can be viewed as one
components of a Python C interface consisting of several components.
From the viewpoint of C access to Python services, we have (as
suggested by Guido in off-line discussions):
- "Very high level layer": two or three functions that let you exec or
eval arbitrary Python code given as a string in a module whose name is
given, passing C values in and getting C values out using
mkvalue/getargs style format strings. This does not require the user
to declare any variables of type "PyObject *". This should be enough
to write a simple application that gets Python code from the user,
execs it, and returns the output or errors. (Error handling must also
be part of this API.)
- "Abstract objects layer": which is the subject of this proposal.
It has many functions operating on objects, and lest you do many
things from C that you can also write in Python, without going
through the Python parser.
- "Concrete objects layer": This is the public type-dependent
interface provided by the standard built-in types, such as floats,
strings, and lists. This interface exists and is currently
documented by the collection of include files provided with the
Python distributions.
From the point of view of Python accessing services provided by C
modules:
- "Python module interface": this interface consist of the basic
routines used to define modules and their members. Most of the
current extensions-writing guide deals with this interface.
- "Built-in object interface": this is the interface that a new
built-in type must provide and the mechanisms and rules that a
developer of a new built-in type must use and follow.
This proposal is a "first-cut" that is intended to spur
discussion. See especially the lists of notes.
The Python C object interface will provide four protocols: object,
numeric, sequence, and mapping. Each protocol consists of a
collection of related operations. If an operation that is not
provided by a particular type is invoked, then a standard exception,
NotImplementedError is raised with a operation name as an argument.
In addition, for convenience this interface defines a set of
constructors for building objects of built-in types. This is needed
so new objects can be returned from C functions that otherwise treat
objects generically.
Memory Management
For all of the functions described in this proposal, if a function
retains a reference to a Python object passed as an argument, then the
function will increase the reference count of the object. It is
unnecessary for the caller to increase the reference count of an
argument in anticipation of the object's retention.
All Python objects returned from functions should be treated as new
objects. Functions that return objects assume that the caller will
retain a reference and the reference count of the object has already
been incremented to account for this fact. A caller that does not
retain a reference to an object that is returned from a function
must decrement the reference count of the object (using
DECREF(object)) to prevent memory leaks.
Note that the behavior mentioned here is different from the current
behavior for some objects (e.g. lists and tuples) when certain
type-specific routines are called directly (e.g. setlistitem). The
proposed abstraction layer will provide a consistent memory
management interface, correcting for inconsistent behavior for some
built-in types.
Protocols
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/
/* Object Protocol: */
/* Implemented elsewhere:
int PyObject_Print(PyObject *o, FILE *fp, int flags);
Print an object, o, on file, fp. Returns -1 on
error. The flags argument is used to enable certain printing
options. The only option currently supported is Py_Print_RAW.
(What should be said about Py_Print_RAW?)
*/
/* Implemented elsewhere:
int PyObject_HasAttrString(PyObject *o, char *attr_name);
Returns 1 if o has the attribute attr_name, and 0 otherwise.
This is equivalent to the Python expression:
hasattr(o,attr_name).
This function always succeeds.
*/
/* Implemented elsewhere:
PyObject* PyObject_GetAttrString(PyObject *o, char *attr_name);
Retrieve an attributed named attr_name form object o.
Returns the attribute value on success, or NULL on failure.
This is the equivalent of the Python expression: o.attr_name.
*/
/* Implemented elsewhere:
int PyObject_HasAttr(PyObject *o, PyObject *attr_name);
Returns 1 if o has the attribute attr_name, and 0 otherwise.
This is equivalent to the Python expression:
hasattr(o,attr_name).
This function always succeeds.
*/
/* Implemented elsewhere:
PyObject* PyObject_GetAttr(PyObject *o, PyObject *attr_name);
Retrieve an attributed named attr_name form object o.
Returns the attribute value on success, or NULL on failure.
This is the equivalent of the Python expression: o.attr_name.
*/
/* Implemented elsewhere:
int PyObject_SetAttrString(PyObject *o, char *attr_name, PyObject *v);
Set the value of the attribute named attr_name, for object o,
to the value, v. Returns -1 on failure. This is
the equivalent of the Python statement: o.attr_name=v.
*/
/* Implemented elsewhere:
int PyObject_SetAttr(PyObject *o, PyObject *attr_name, PyObject *v);
Set the value of the attribute named attr_name, for object o,
to the value, v. Returns -1 on failure. This is
the equivalent of the Python statement: o.attr_name=v.
*/
/* implemented as a macro:
int PyObject_DelAttrString(PyObject *o, char *attr_name);
Delete attribute named attr_name, for object o. Returns
-1 on failure. This is the equivalent of the Python
statement: del o.attr_name.
*/
#define PyObject_DelAttrString(O,A) PyObject_SetAttrString((O),(A),NULL)
/* implemented as a macro:
int PyObject_DelAttr(PyObject *o, PyObject *attr_name);
Delete attribute named attr_name, for object o. Returns -1
on failure. This is the equivalent of the Python
statement: del o.attr_name.
*/
#define PyObject_DelAttr(O,A) PyObject_SetAttr((O),(A),NULL)
PyAPI_FUNC(int) PyObject_Cmp(PyObject *o1, PyObject *o2, int *result);
/*
Compare the values of o1 and o2 using a routine provided by
o1, if one exists, otherwise with a routine provided by o2.
The result of the comparison is returned in result. Returns
-1 on failure. This is the equivalent of the Python
statement: result=cmp(o1,o2).
*/
/* Implemented elsewhere:
int PyObject_Compare(PyObject *o1, PyObject *o2);
Compare the values of o1 and o2 using a routine provided by
o1, if one exists, otherwise with a routine provided by o2.
Returns the result of the comparison on success. On error,
the value returned is undefined. This is equivalent to the
Python expression: cmp(o1,o2).
*/
/* Implemented elsewhere:
PyObject *PyObject_Repr(PyObject *o);
Compute the string representation of object, o. Returns the
string representation on success, NULL on failure. This is
the equivalent of the Python expression: repr(o).
Called by the repr() built-in function and by reverse quotes.
*/
/* Implemented elsewhere:
PyObject *PyObject_Str(PyObject *o);
Compute the string representation of object, o. Returns the
string representation on success, NULL on failure. This is
the equivalent of the Python expression: str(o).)
Called by the str() built-in function and by the print
statement.
*/
/* Implemented elsewhere:
PyObject *PyObject_Unicode(PyObject *o);
Compute the unicode representation of object, o. Returns the
unicode representation on success, NULL on failure. This is
the equivalent of the Python expression: unistr(o).)
Called by the unistr() built-in function.
*/
/* Declared elsewhere
PyAPI_FUNC(int) PyCallable_Check(PyObject *o);
Determine if the object, o, is callable. Return 1 if the
object is callable and 0 otherwise.
This function always succeeds.
*/
PyAPI_FUNC(PyObject *) PyObject_Call(PyObject *callable_object,
PyObject *args, PyObject *kw);
/*
Call a callable Python object, callable_object, with
arguments and keywords arguments. The 'args' argument can not be
NULL, but the 'kw' argument can be NULL.
*/
PyAPI_FUNC(PyObject *) PyObject_CallObject(PyObject *callable_object,
PyObject *args);
/*
Call a callable Python object, callable_object, with
arguments given by the tuple, args. If no arguments are
needed, then args may be NULL. Returns the result of the
call on success, or NULL on failure. This is the equivalent
of the Python expression: apply(o,args).
*/
PyAPI_FUNC(PyObject *) PyObject_CallFunction(PyObject *callable_object,
char *format, ...);
/*
Call a callable Python object, callable_object, with a
variable number of C arguments. The C arguments are described
using a mkvalue-style format string. The format may be NULL,
indicating that no arguments are provided. Returns the
result of the call on success, or NULL on failure. This is
the equivalent of the Python expression: apply(o,args).
*/
PyAPI_FUNC(PyObject *) PyObject_CallMethod(PyObject *o, char *m,
char *format, ...);
/*
Call the method named m of object o with a variable number of
C arguments. The C arguments are described by a mkvalue
format string. The format may be NULL, indicating that no
arguments are provided. Returns the result of the call on
success, or NULL on failure. This is the equivalent of the
Python expression: o.method(args).
*/
PyAPI_FUNC(PyObject *) _PyObject_CallFunction_SizeT(PyObject *callable,
char *format, ...);
PyAPI_FUNC(PyObject *) _PyObject_CallMethod_SizeT(PyObject *o,
char *name,
char *format, ...);
PyAPI_FUNC(PyObject *) PyObject_CallFunctionObjArgs(PyObject *callable,
...);
/*
Call a callable Python object, callable_object, with a
variable number of C arguments. The C arguments are provided
as PyObject * values, terminated by a NULL. Returns the
result of the call on success, or NULL on failure. This is
the equivalent of the Python expression: apply(o,args).
*/
PyAPI_FUNC(PyObject *) PyObject_CallMethodObjArgs(PyObject *o,
PyObject *m, ...);
/*
Call the method named m of object o with a variable number of
C arguments. The C arguments are provided as PyObject *
values, terminated by NULL. Returns the result of the call
on success, or NULL on failure. This is the equivalent of
the Python expression: o.method(args).
*/
/* Implemented elsewhere:
long PyObject_Hash(PyObject *o);
Compute and return the hash, hash_value, of an object, o. On
failure, return -1. This is the equivalent of the Python
expression: hash(o).
*/
/* Implemented elsewhere:
int PyObject_IsTrue(PyObject *o);
Returns 1 if the object, o, is considered to be true, 0 if o is
considered to be false and -1 on failure. This is equivalent to the
Python expression: not not o
*/
/* Implemented elsewhere:
int PyObject_Not(PyObject *o);
Returns 0 if the object, o, is considered to be true, 1 if o is
considered to be false and -1 on failure. This is equivalent to the
Python expression: not o
*/
PyAPI_FUNC(PyObject *) PyObject_Type(PyObject *o);
/*
On success, returns a type object corresponding to the object
type of object o. On failure, returns NULL. This is
equivalent to the Python expression: type(o).
*/
PyAPI_FUNC(Py_ssize_t) PyObject_Size(PyObject *o);
/*
Return the size of object o. If the object, o, provides
both sequence and mapping protocols, the sequence size is
returned. On error, -1 is returned. This is the equivalent
to the Python expression: len(o).
*/
/* For DLL compatibility */
#undef PyObject_Length
PyAPI_FUNC(Py_ssize_t) PyObject_Length(PyObject *o);
#define PyObject_Length PyObject_Size
PyAPI_FUNC(Py_ssize_t) _PyObject_LengthHint(PyObject *o, Py_ssize_t);
/*
Guess the size of object o using len(o) or o.__length_hint__().
If neither of those return a non-negative value, then return the
default value. If one of the calls fails, this function returns -1.
*/
PyAPI_FUNC(PyObject *) PyObject_GetItem(PyObject *o, PyObject *key);
/*
Return element of o corresponding to the object, key, or NULL
on failure. This is the equivalent of the Python expression:
o[key].
*/
PyAPI_FUNC(int) PyObject_SetItem(PyObject *o, PyObject *key, PyObject *v);
/*
Map the object, key, to the value, v. Returns
-1 on failure. This is the equivalent of the Python
statement: o[key]=v.
*/
PyAPI_FUNC(int) PyObject_DelItemString(PyObject *o, char *key);
/*
Remove the mapping for object, key, from the object *o.
Returns -1 on failure. This is equivalent to
the Python statement: del o[key].
*/
PyAPI_FUNC(int) PyObject_DelItem(PyObject *o, PyObject *key);
/*
Delete the mapping for key from *o. Returns -1 on failure.
This is the equivalent of the Python statement: del o[key].
*/
PyAPI_FUNC(int) PyObject_AsCharBuffer(PyObject *obj,
const char **buffer,
Py_ssize_t *buffer_len);
/*
Takes an arbitrary object which must support the (character,
single segment) buffer interface and returns a pointer to a
read-only memory location useable as character based input
for subsequent processing.
0 is returned on success. buffer and buffer_len are only
set in case no error occurs. Otherwise, -1 is returned and
an exception set.
*/
PyAPI_FUNC(int) PyObject_CheckReadBuffer(PyObject *obj);
/*
Checks whether an arbitrary object supports the (character,
single segment) buffer interface. Returns 1 on success, 0
on failure.
*/
PyAPI_FUNC(int) PyObject_AsReadBuffer(PyObject *obj,
const void **buffer,
Py_ssize_t *buffer_len);
/*
Same as PyObject_AsCharBuffer() except that this API expects
(readable, single segment) buffer interface and returns a
pointer to a read-only memory location which can contain
arbitrary data.
0 is returned on success. buffer and buffer_len are only
set in case no error occurs. Otherwise, -1 is returned and
an exception set.
*/
PyAPI_FUNC(int) PyObject_AsWriteBuffer(PyObject *obj,
void **buffer,
Py_ssize_t *buffer_len);
/*
Takes an arbitrary object which must support the (writeable,
single segment) buffer interface and returns a pointer to a
writeable memory location in buffer of size buffer_len.
0 is returned on success. buffer and buffer_len are only
set in case no error occurs. Otherwise, -1 is returned and
an exception set.
*/
/* new buffer API */
#define PyObject_CheckBuffer(obj) \
(((obj)->ob_type->tp_as_buffer != NULL) && \
(PyType_HasFeature((obj)->ob_type, Py_TPFLAGS_HAVE_NEWBUFFER)) && \
((obj)->ob_type->tp_as_buffer->bf_getbuffer != NULL))
/* Return 1 if the getbuffer function is available, otherwise
return 0 */
PyAPI_FUNC(int) PyObject_GetBuffer(PyObject *obj, Py_buffer *view,
int flags);
/* This is a C-API version of the getbuffer function call. It checks
to make sure object has the required function pointer and issues the
call. Returns -1 and raises an error on failure and returns 0 on
success
*/
PyAPI_FUNC(void *) PyBuffer_GetPointer(Py_buffer *view, Py_ssize_t *indices);
/* Get the memory area pointed to by the indices for the buffer given.
Note that view->ndim is the assumed size of indices
*/
PyAPI_FUNC(int) PyBuffer_SizeFromFormat(const char *);
/* Return the implied itemsize of the data-format area from a
struct-style description */
PyAPI_FUNC(int) PyBuffer_ToContiguous(void *buf, Py_buffer *view,
Py_ssize_t len, char fort);
PyAPI_FUNC(int) PyBuffer_FromContiguous(Py_buffer *view, void *buf,
Py_ssize_t len, char fort);
/* Copy len bytes of data from the contiguous chunk of memory
pointed to by buf into the buffer exported by obj. Return
0 on success and return -1 and raise a PyBuffer_Error on
error (i.e. the object does not have a buffer interface or
it is not working).
If fort is 'F' and the object is multi-dimensional,
then the data will be copied into the array in
Fortran-style (first dimension varies the fastest). If
fort is 'C', then the data will be copied into the array
in C-style (last dimension varies the fastest). If fort
is 'A', then it does not matter and the copy will be made
in whatever way is more efficient.
*/
PyAPI_FUNC(int) PyObject_CopyData(PyObject *dest, PyObject *src);
/* Copy the data from the src buffer to the buffer of destination
*/
PyAPI_FUNC(int) PyBuffer_IsContiguous(Py_buffer *view, char fort);
PyAPI_FUNC(void) PyBuffer_FillContiguousStrides(int ndims,
Py_ssize_t *shape,
Py_ssize_t *strides,
int itemsize,
char fort);
/* Fill the strides array with byte-strides of a contiguous
(Fortran-style if fort is 'F' or C-style otherwise)
array of the given shape with the given number of bytes
per element.
*/
PyAPI_FUNC(int) PyBuffer_FillInfo(Py_buffer *view, PyObject *o, void *buf,
Py_ssize_t len, int readonly,
int flags);
/* Fills in a buffer-info structure correctly for an exporter
that can only share a contiguous chunk of memory of
"unsigned bytes" of the given length. Returns 0 on success
and -1 (with raising an error) on error.
*/
PyAPI_FUNC(void) PyBuffer_Release(Py_buffer *view);
/* Releases a Py_buffer obtained from getbuffer ParseTuple's s*.
*/
PyAPI_FUNC(PyObject *) PyObject_Format(PyObject* obj,
PyObject *format_spec);
/*
Takes an arbitrary object and returns the result of
calling obj.__format__(format_spec).
*/
/* Iterators */
PyAPI_FUNC(PyObject *) PyObject_GetIter(PyObject *);
/* Takes an object and returns an iterator for it.
This is typically a new iterator but if the argument
is an iterator, this returns itself. */
#define PyIter_Check(obj) \
(PyType_HasFeature((obj)->ob_type, Py_TPFLAGS_HAVE_ITER) && \
(obj)->ob_type->tp_iternext != NULL && \
(obj)->ob_type->tp_iternext != &_PyObject_NextNotImplemented)
PyAPI_FUNC(PyObject *) PyIter_Next(PyObject *);
/* Takes an iterator object and calls its tp_iternext slot,
returning the next value. If the iterator is exhausted,
this returns NULL without setting an exception.
NULL with an exception means an error occurred. */
/* Number Protocol:*/
PyAPI_FUNC(int) PyNumber_Check(PyObject *o);
/*
Returns 1 if the object, o, provides numeric protocols, and
false otherwise.
This function always succeeds.
*/
PyAPI_FUNC(PyObject *) PyNumber_Add(PyObject *o1, PyObject *o2);
/*
Returns the result of adding o1 and o2, or null on failure.
This is the equivalent of the Python expression: o1+o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Subtract(PyObject *o1, PyObject *o2);
/*
Returns the result of subtracting o2 from o1, or null on
failure. This is the equivalent of the Python expression:
o1-o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Multiply(PyObject *o1, PyObject *o2);
/*
Returns the result of multiplying o1 and o2, or null on
failure. This is the equivalent of the Python expression:
o1*o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Divide(PyObject *o1, PyObject *o2);
/*
Returns the result of dividing o1 by o2, or null on failure.
This is the equivalent of the Python expression: o1/o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_FloorDivide(PyObject *o1, PyObject *o2);
/*
Returns the result of dividing o1 by o2 giving an integral result,
or null on failure.
This is the equivalent of the Python expression: o1//o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_TrueDivide(PyObject *o1, PyObject *o2);
/*
Returns the result of dividing o1 by o2 giving a float result,
or null on failure.
This is the equivalent of the Python expression: o1/o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Remainder(PyObject *o1, PyObject *o2);
/*
Returns the remainder of dividing o1 by o2, or null on
failure. This is the equivalent of the Python expression:
o1%o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Divmod(PyObject *o1, PyObject *o2);
/*
See the built-in function divmod. Returns NULL on failure.
This is the equivalent of the Python expression:
divmod(o1,o2).
*/
PyAPI_FUNC(PyObject *) PyNumber_Power(PyObject *o1, PyObject *o2,
PyObject *o3);
/*
See the built-in function pow. Returns NULL on failure.
This is the equivalent of the Python expression:
pow(o1,o2,o3), where o3 is optional.
*/
PyAPI_FUNC(PyObject *) PyNumber_Negative(PyObject *o);
/*
Returns the negation of o on success, or null on failure.
This is the equivalent of the Python expression: -o.
*/
PyAPI_FUNC(PyObject *) PyNumber_Positive(PyObject *o);
/*
Returns the (what?) of o on success, or NULL on failure.
This is the equivalent of the Python expression: +o.
*/
PyAPI_FUNC(PyObject *) PyNumber_Absolute(PyObject *o);
/*
Returns the absolute value of o, or null on failure. This is
the equivalent of the Python expression: abs(o).
*/
PyAPI_FUNC(PyObject *) PyNumber_Invert(PyObject *o);
/*
Returns the bitwise negation of o on success, or NULL on
failure. This is the equivalent of the Python expression:
~o.
*/
PyAPI_FUNC(PyObject *) PyNumber_Lshift(PyObject *o1, PyObject *o2);
/*
Returns the result of left shifting o1 by o2 on success, or
NULL on failure. This is the equivalent of the Python
expression: o1 << o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Rshift(PyObject *o1, PyObject *o2);
/*
Returns the result of right shifting o1 by o2 on success, or
NULL on failure. This is the equivalent of the Python
expression: o1 >> o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_And(PyObject *o1, PyObject *o2);
/*
Returns the result of bitwise and of o1 and o2 on success, or
NULL on failure. This is the equivalent of the Python
expression: o1&o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Xor(PyObject *o1, PyObject *o2);
/*
Returns the bitwise exclusive or of o1 by o2 on success, or
NULL on failure. This is the equivalent of the Python
expression: o1^o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_Or(PyObject *o1, PyObject *o2);
/*
Returns the result of bitwise or on o1 and o2 on success, or
NULL on failure. This is the equivalent of the Python
expression: o1|o2.
*/
/* Implemented elsewhere:
int PyNumber_Coerce(PyObject **p1, PyObject **p2);
This function takes the addresses of two variables of type
PyObject*.
If the objects pointed to by *p1 and *p2 have the same type,
increment their reference count and return 0 (success).
If the objects can be converted to a common numeric type,
replace *p1 and *p2 by their converted value (with 'new'
reference counts), and return 0.
If no conversion is possible, or if some other error occurs,
return -1 (failure) and don't increment the reference counts.
The call PyNumber_Coerce(&o1, &o2) is equivalent to the Python
statement o1, o2 = coerce(o1, o2).
*/
#define PyIndex_Check(obj) \
((obj)->ob_type->tp_as_number != NULL && \
PyType_HasFeature((obj)->ob_type, Py_TPFLAGS_HAVE_INDEX) && \
(obj)->ob_type->tp_as_number->nb_index != NULL)
PyAPI_FUNC(PyObject *) PyNumber_Index(PyObject *o);
/*
Returns the object converted to a Python long or int
or NULL with an error raised on failure.
*/
PyAPI_FUNC(Py_ssize_t) PyNumber_AsSsize_t(PyObject *o, PyObject *exc);
/*
Returns the Integral instance converted to an int. The
instance is expected to be int or long or have an __int__
method. Steals integral's reference. error_format will be
used to create the TypeError if integral isn't actually an
Integral instance. error_format should be a format string
that can accept a char* naming integral's type.
*/
PyAPI_FUNC(PyObject *) _PyNumber_ConvertIntegralToInt(
PyObject *integral,
const char* error_format);
/*
Returns the object converted to Py_ssize_t by going through
PyNumber_Index first. If an overflow error occurs while
converting the int-or-long to Py_ssize_t, then the second argument
is the error-type to return. If it is NULL, then the overflow error
is cleared and the value is clipped.
*/
PyAPI_FUNC(PyObject *) PyNumber_Int(PyObject *o);
/*
Returns the o converted to an integer object on success, or
NULL on failure. This is the equivalent of the Python
expression: int(o).
*/
PyAPI_FUNC(PyObject *) PyNumber_Long(PyObject *o);
/*
Returns the o converted to a long integer object on success,
or NULL on failure. This is the equivalent of the Python
expression: long(o).
*/
PyAPI_FUNC(PyObject *) PyNumber_Float(PyObject *o);
/*
Returns the o converted to a float object on success, or NULL
on failure. This is the equivalent of the Python expression:
float(o).
*/
/* In-place variants of (some of) the above number protocol functions */
PyAPI_FUNC(PyObject *) PyNumber_InPlaceAdd(PyObject *o1, PyObject *o2);
/*
Returns the result of adding o2 to o1, possibly in-place, or null
on failure. This is the equivalent of the Python expression:
o1 += o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceSubtract(PyObject *o1, PyObject *o2);
/*
Returns the result of subtracting o2 from o1, possibly in-place or
null on failure. This is the equivalent of the Python expression:
o1 -= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceMultiply(PyObject *o1, PyObject *o2);
/*
Returns the result of multiplying o1 by o2, possibly in-place, or
null on failure. This is the equivalent of the Python expression:
o1 *= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceDivide(PyObject *o1, PyObject *o2);
/*
Returns the result of dividing o1 by o2, possibly in-place, or null
on failure. This is the equivalent of the Python expression:
o1 /= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceFloorDivide(PyObject *o1,
PyObject *o2);
/*
Returns the result of dividing o1 by o2 giving an integral result,
possibly in-place, or null on failure.
This is the equivalent of the Python expression:
o1 /= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceTrueDivide(PyObject *o1,
PyObject *o2);
/*
Returns the result of dividing o1 by o2 giving a float result,
possibly in-place, or null on failure.
This is the equivalent of the Python expression:
o1 /= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceRemainder(PyObject *o1, PyObject *o2);
/*
Returns the remainder of dividing o1 by o2, possibly in-place, or
null on failure. This is the equivalent of the Python expression:
o1 %= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlacePower(PyObject *o1, PyObject *o2,
PyObject *o3);
/*
Returns the result of raising o1 to the power of o2, possibly
in-place, or null on failure. This is the equivalent of the Python
expression: o1 **= o2, or pow(o1, o2, o3) if o3 is present.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceLshift(PyObject *o1, PyObject *o2);
/*
Returns the result of left shifting o1 by o2, possibly in-place, or
null on failure. This is the equivalent of the Python expression:
o1 <<= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceRshift(PyObject *o1, PyObject *o2);
/*
Returns the result of right shifting o1 by o2, possibly in-place or
null on failure. This is the equivalent of the Python expression:
o1 >>= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceAnd(PyObject *o1, PyObject *o2);
/*
Returns the result of bitwise and of o1 and o2, possibly in-place,
or null on failure. This is the equivalent of the Python
expression: o1 &= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceXor(PyObject *o1, PyObject *o2);
/*
Returns the bitwise exclusive or of o1 by o2, possibly in-place, or
null on failure. This is the equivalent of the Python expression:
o1 ^= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_InPlaceOr(PyObject *o1, PyObject *o2);
/*
Returns the result of bitwise or of o1 and o2, possibly in-place,
or null on failure. This is the equivalent of the Python
expression: o1 |= o2.
*/
PyAPI_FUNC(PyObject *) PyNumber_ToBase(PyObject *n, int base);
/*
Returns the integer n converted to a string with a base, with a base
marker of 0b, 0o or 0x prefixed if applicable.
If n is not an int object, it is converted with PyNumber_Index first.
*/
/* Sequence protocol:*/
PyAPI_FUNC(int) PySequence_Check(PyObject *o);
/*
Return 1 if the object provides sequence protocol, and zero
otherwise.
This function always succeeds.
*/
PyAPI_FUNC(Py_ssize_t) PySequence_Size(PyObject *o);
/*
Return the size of sequence object o, or -1 on failure.
*/
/* For DLL compatibility */
#undef PySequence_Length
PyAPI_FUNC(Py_ssize_t) PySequence_Length(PyObject *o);
#define PySequence_Length PySequence_Size
PyAPI_FUNC(PyObject *) PySequence_Concat(PyObject *o1, PyObject *o2);
/*
Return the concatenation of o1 and o2 on success, and NULL on
failure. This is the equivalent of the Python
expression: o1+o2.
*/
PyAPI_FUNC(PyObject *) PySequence_Repeat(PyObject *o, Py_ssize_t count);
/*
Return the result of repeating sequence object o count times,
or NULL on failure. This is the equivalent of the Python
expression: o1*count.
*/
PyAPI_FUNC(PyObject *) PySequence_GetItem(PyObject *o, Py_ssize_t i);
/*
Return the ith element of o, or NULL on failure. This is the
equivalent of the Python expression: o[i].
*/
PyAPI_FUNC(PyObject *) PySequence_GetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2);
/*
Return the slice of sequence object o between i1 and i2, or
NULL on failure. This is the equivalent of the Python
expression: o[i1:i2].
*/
PyAPI_FUNC(int) PySequence_SetItem(PyObject *o, Py_ssize_t i, PyObject *v);
/*
Assign object v to the ith element of o. Returns
-1 on failure. This is the equivalent of the Python
statement: o[i]=v.
*/
PyAPI_FUNC(int) PySequence_DelItem(PyObject *o, Py_ssize_t i);
/*
Delete the ith element of object v. Returns
-1 on failure. This is the equivalent of the Python
statement: del o[i].
*/
PyAPI_FUNC(int) PySequence_SetSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2,
PyObject *v);
/*
Assign the sequence object, v, to the slice in sequence
object, o, from i1 to i2. Returns -1 on failure. This is the
equivalent of the Python statement: o[i1:i2]=v.
*/
PyAPI_FUNC(int) PySequence_DelSlice(PyObject *o, Py_ssize_t i1, Py_ssize_t i2);
/*
Delete the slice in sequence object, o, from i1 to i2.
Returns -1 on failure. This is the equivalent of the Python
statement: del o[i1:i2].
*/
PyAPI_FUNC(PyObject *) PySequence_Tuple(PyObject *o);
/*
Returns the sequence, o, as a tuple on success, and NULL on failure.
This is equivalent to the Python expression: tuple(o)
*/
PyAPI_FUNC(PyObject *) PySequence_List(PyObject *o);
/*
Returns the sequence, o, as a list on success, and NULL on failure.
This is equivalent to the Python expression: list(o)
*/
PyAPI_FUNC(PyObject *) PySequence_Fast(PyObject *o, const char* m);
/*
Return the sequence, o, as a list, unless it's already a
tuple or list. Use PySequence_Fast_GET_ITEM to access the
members of this list, and PySequence_Fast_GET_SIZE to get its length.
Returns NULL on failure. If the object does not support iteration,
raises a TypeError exception with m as the message text.
*/
#define PySequence_Fast_GET_SIZE(o) \
(PyList_Check(o) ? PyList_GET_SIZE(o) : PyTuple_GET_SIZE(o))
/*
Return the size of o, assuming that o was returned by
PySequence_Fast and is not NULL.
*/
#define PySequence_Fast_GET_ITEM(o, i)\
(PyList_Check(o) ? PyList_GET_ITEM(o, i) : PyTuple_GET_ITEM(o, i))
/*
Return the ith element of o, assuming that o was returned by
PySequence_Fast, and that i is within bounds.
*/
#define PySequence_ITEM(o, i)\
( Py_TYPE(o)->tp_as_sequence->sq_item(o, i) )
/* Assume tp_as_sequence and sq_item exist and that i does not
need to be corrected for a negative index
*/
#define PySequence_Fast_ITEMS(sf) \
(PyList_Check(sf) ? ((PyListObject *)(sf))->ob_item \
: ((PyTupleObject *)(sf))->ob_item)
/* Return a pointer to the underlying item array for
an object retured by PySequence_Fast */
PyAPI_FUNC(Py_ssize_t) PySequence_Count(PyObject *o, PyObject *value);
/*
Return the number of occurrences on value on o, that is,
return the number of keys for which o[key]==value. On
failure, return -1. This is equivalent to the Python
expression: o.count(value).
*/
PyAPI_FUNC(int) PySequence_Contains(PyObject *seq, PyObject *ob);
/*
Return -1 if error; 1 if ob in seq; 0 if ob not in seq.
Use __contains__ if possible, else _PySequence_IterSearch().
*/
#define PY_ITERSEARCH_COUNT 1
#define PY_ITERSEARCH_INDEX 2
#define PY_ITERSEARCH_CONTAINS 3
PyAPI_FUNC(Py_ssize_t) _PySequence_IterSearch(PyObject *seq,
PyObject *obj, int operation);
/*
Iterate over seq. Result depends on the operation:
PY_ITERSEARCH_COUNT: return # of times obj appears in seq; -1 if
error.
PY_ITERSEARCH_INDEX: return 0-based index of first occurrence of
obj in seq; set ValueError and return -1 if none found;
also return -1 on error.
PY_ITERSEARCH_CONTAINS: return 1 if obj in seq, else 0; -1 on
error.
*/
/* For DLL-level backwards compatibility */
#undef PySequence_In
PyAPI_FUNC(int) PySequence_In(PyObject *o, PyObject *value);
/* For source-level backwards compatibility */
#define PySequence_In PySequence_Contains
/*
Determine if o contains value. If an item in o is equal to
X, return 1, otherwise return 0. On error, return -1. This
is equivalent to the Python expression: value in o.
*/
PyAPI_FUNC(Py_ssize_t) PySequence_Index(PyObject *o, PyObject *value);
/*
Return the first index for which o[i]=value. On error,
return -1. This is equivalent to the Python
expression: o.index(value).
*/
/* In-place versions of some of the above Sequence functions. */
PyAPI_FUNC(PyObject *) PySequence_InPlaceConcat(PyObject *o1, PyObject *o2);
/*
Append o2 to o1, in-place when possible. Return the resulting
object, which could be o1, or NULL on failure. This is the
equivalent of the Python expression: o1 += o2.
*/
PyAPI_FUNC(PyObject *) PySequence_InPlaceRepeat(PyObject *o, Py_ssize_t count);
/*
Repeat o1 by count, in-place when possible. Return the resulting
object, which could be o1, or NULL on failure. This is the
equivalent of the Python expression: o1 *= count.
*/
/* Mapping protocol:*/
PyAPI_FUNC(int) PyMapping_Check(PyObject *o);
/*
Return 1 if the object provides mapping protocol, and zero
otherwise.
This function always succeeds.
*/
PyAPI_FUNC(Py_ssize_t) PyMapping_Size(PyObject *o);
/*
Returns the number of keys in object o on success, and -1 on
failure. For objects that do not provide sequence protocol,
this is equivalent to the Python expression: len(o).
*/
/* For DLL compatibility */
#undef PyMapping_Length
PyAPI_FUNC(Py_ssize_t) PyMapping_Length(PyObject *o);
#define PyMapping_Length PyMapping_Size
/* implemented as a macro:
int PyMapping_DelItemString(PyObject *o, char *key);
Remove the mapping for object, key, from the object *o.
Returns -1 on failure. This is equivalent to
the Python statement: del o[key].
*/
#define PyMapping_DelItemString(O,K) PyObject_DelItemString((O),(K))
/* implemented as a macro:
int PyMapping_DelItem(PyObject *o, PyObject *key);
Remove the mapping for object, key, from the object *o.
Returns -1 on failure. This is equivalent to
the Python statement: del o[key].
*/
#define PyMapping_DelItem(O,K) PyObject_DelItem((O),(K))
PyAPI_FUNC(int) PyMapping_HasKeyString(PyObject *o, char *key);
/*
On success, return 1 if the mapping object has the key, key,
and 0 otherwise. This is equivalent to the Python expression:
o.has_key(key).
This function always succeeds.
*/
PyAPI_FUNC(int) PyMapping_HasKey(PyObject *o, PyObject *key);
/*
Return 1 if the mapping object has the key, key,
and 0 otherwise. This is equivalent to the Python expression:
o.has_key(key).
This function always succeeds.
*/
/* Implemented as macro:
PyObject *PyMapping_Keys(PyObject *o);
On success, return a list of the keys in object o. On
failure, return NULL. This is equivalent to the Python
expression: o.keys().
*/
#define PyMapping_Keys(O) PyObject_CallMethod(O,"keys",NULL)
/* Implemented as macro:
PyObject *PyMapping_Values(PyObject *o);
On success, return a list of the values in object o. On
failure, return NULL. This is equivalent to the Python
expression: o.values().
*/
#define PyMapping_Values(O) PyObject_CallMethod(O,"values",NULL)
/* Implemented as macro:
PyObject *PyMapping_Items(PyObject *o);
On success, return a list of the items in object o, where
each item is a tuple containing a key-value pair. On
failure, return NULL. This is equivalent to the Python
expression: o.items().
*/
#define PyMapping_Items(O) PyObject_CallMethod(O,"items",NULL)
PyAPI_FUNC(PyObject *) PyMapping_GetItemString(PyObject *o, char *key);
/*
Return element of o corresponding to the object, key, or NULL
on failure. This is the equivalent of the Python expression:
o[key].
*/
PyAPI_FUNC(int) PyMapping_SetItemString(PyObject *o, char *key,
PyObject *value);
/*
Map the object, key, to the value, v. Returns
-1 on failure. This is the equivalent of the Python
statement: o[key]=v.
*/
PyAPI_FUNC(int) PyObject_IsInstance(PyObject *object, PyObject *typeorclass);
/* isinstance(object, typeorclass) */
PyAPI_FUNC(int) PyObject_IsSubclass(PyObject *object, PyObject *typeorclass);
/* issubclass(object, typeorclass) */
PyAPI_FUNC(int) _PyObject_RealIsInstance(PyObject *inst, PyObject *cls);
PyAPI_FUNC(int) _PyObject_RealIsSubclass(PyObject *derived, PyObject *cls);
/* For internal use by buffer API functions */
PyAPI_FUNC(void) _Py_add_one_to_index_F(int nd, Py_ssize_t *index,
const Py_ssize_t *shape);
PyAPI_FUNC(void) _Py_add_one_to_index_C(int nd, Py_ssize_t *index,
const Py_ssize_t *shape);
#ifdef __cplusplus
}
#endif
#endif /* Py_ABSTRACTOBJECT_H */
include/boolobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* Boolean object interface */
#ifndef Py_BOOLOBJECT_H
#define Py_BOOLOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef PyIntObject PyBoolObject;
PyAPI_DATA(PyTypeObject) PyBool_Type;
#define PyBool_Check(x) (Py_TYPE(x) == &PyBool_Type)
/* Py_False and Py_True are the only two bools in existence.
Don't forget to apply Py_INCREF() when returning either!!! */
// Pyston change: these are currently stored as pointers, not as static globals
/* Don't use these directly */
//PyAPI_DATA(PyIntObject) _Py_ZeroStruct, _Py_TrueStruct;
PyAPI_DATA(PyObject) *True, *False;
/* Use these macros */
#define Py_False ((PyObject *) True)
#define Py_True ((PyObject *) False)
/* Macros for returning Py_True or Py_False, respectively */
#define Py_RETURN_TRUE return Py_INCREF(Py_True), Py_True
#define Py_RETURN_FALSE return Py_INCREF(Py_False), Py_False
/* Function to return a bool from a C long */
PyAPI_FUNC(PyObject *) PyBool_FromLong(long);
#ifdef __cplusplus
}
#endif
#endif /* !Py_BOOLOBJECT_H */
include/descrobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* Descriptors */
#ifndef Py_DESCROBJECT_H
#define Py_DESCROBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef PyObject *(*getter)(PyObject *, void *);
typedef int (*setter)(PyObject *, PyObject *, void *);
typedef struct PyGetSetDef {
char *name;
getter get;
setter set;
char *doc;
void *closure;
} PyGetSetDef;
typedef PyObject *(*wrapperfunc)(PyObject *self, PyObject *args,
void *wrapped);
typedef PyObject *(*wrapperfunc_kwds)(PyObject *self, PyObject *args,
void *wrapped, PyObject *kwds);
struct wrapperbase {
char *name;
int offset;
void *function;
wrapperfunc wrapper;
char *doc;
int flags;
PyObject *name_strobj;
};
/* Flags for above struct */
#define PyWrapperFlag_KEYWORDS 1 /* wrapper function takes keyword args */
/* Various kinds of descriptor objects */
#define PyDescr_COMMON \
PyObject_HEAD \
PyTypeObject *d_type; \
PyObject *d_name
typedef struct {
PyDescr_COMMON;
} PyDescrObject;
typedef struct {
PyDescr_COMMON;
PyMethodDef *d_method;
} PyMethodDescrObject;
typedef struct {
PyDescr_COMMON;
struct PyMemberDef *d_member;
} PyMemberDescrObject;
typedef struct {
PyDescr_COMMON;
PyGetSetDef *d_getset;
} PyGetSetDescrObject;
typedef struct {
PyDescr_COMMON;
struct wrapperbase *d_base;
void *d_wrapped; /* This can be any function pointer */
} PyWrapperDescrObject;
PyAPI_DATA(PyTypeObject) PyWrapperDescr_Type;
PyAPI_DATA(PyTypeObject) PyDictProxy_Type;
PyAPI_DATA(PyTypeObject) PyGetSetDescr_Type;
PyAPI_DATA(PyTypeObject) PyMemberDescr_Type;
PyAPI_FUNC(PyObject *) PyDescr_NewMethod(PyTypeObject *, PyMethodDef *);
PyAPI_FUNC(PyObject *) PyDescr_NewClassMethod(PyTypeObject *, PyMethodDef *);
PyAPI_FUNC(PyObject *) PyDescr_NewMember(PyTypeObject *,
struct PyMemberDef *);
PyAPI_FUNC(PyObject *) PyDescr_NewGetSet(PyTypeObject *,
struct PyGetSetDef *);
PyAPI_FUNC(PyObject *) PyDescr_NewWrapper(PyTypeObject *,
struct wrapperbase *, void *);
#define PyDescr_IsData(d) (Py_TYPE(d)->tp_descr_set != NULL)
PyAPI_FUNC(PyObject *) PyDictProxy_New(PyObject *);
PyAPI_FUNC(PyObject *) PyWrapper_New(PyObject *, PyObject *);
PyAPI_DATA(PyTypeObject) PyProperty_Type;
#ifdef __cplusplus
}
#endif
#endif /* !Py_DESCROBJECT_H */
include/floatobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* Float object interface */
/*
PyFloatObject represents a (double precision) floating point number.
*/
#ifndef Py_FLOATOBJECT_H
#define Py_FLOATOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
// Pyston change: this is not the format we're using
// - actually I think it is but there's no reason to have multiple definitions.
#if 0
typedef struct {
PyObject_HEAD
double ob_fval;
} PyFloatObject;
#endif
typedef void PyFloatObject;
PyAPI_DATA(PyTypeObject) PyFloat_Type;
#define PyFloat_Check(op) PyObject_TypeCheck(op, &PyFloat_Type)
#define PyFloat_CheckExact(op) (Py_TYPE(op) == &PyFloat_Type)
/* The str() precision PyFloat_STR_PRECISION is chosen so that in most cases,
the rounding noise created by various operations is suppressed, while
giving plenty of precision for practical use. */
#define PyFloat_STR_PRECISION 12
#ifdef Py_NAN
#define Py_RETURN_NAN return PyFloat_FromDouble(Py_NAN)
#endif
#define Py_RETURN_INF(sign) do \
if (copysign(1., sign) == 1.) { \
return PyFloat_FromDouble(Py_HUGE_VAL); \
} else { \
return PyFloat_FromDouble(-Py_HUGE_VAL); \
} while(0)
PyAPI_FUNC(double) PyFloat_GetMax(void);
PyAPI_FUNC(double) PyFloat_GetMin(void);
PyAPI_FUNC(PyObject *) PyFloat_GetInfo(void);
/* Return Python float from string PyObject. Second argument ignored on
input, and, if non-NULL, NULL is stored into *junk (this tried to serve a
purpose once but can't be made to work as intended). */
PyAPI_FUNC(PyObject *) PyFloat_FromString(PyObject*, char** junk);
/* Return Python float from C double. */
PyAPI_FUNC(PyObject *) PyFloat_FromDouble(double);
/* Extract C double from Python float. The macro version trades safety for
speed. */
PyAPI_FUNC(double) PyFloat_AsDouble(PyObject *);
#define PyFloat_AS_DOUBLE(op) (((PyFloatObject *)(op))->ob_fval)
/* Write repr(v) into the char buffer argument, followed by null byte. The
buffer must be "big enough"; >= 100 is very safe.
PyFloat_AsReprString(buf, x) strives to print enough digits so that
PyFloat_FromString(buf) then reproduces x exactly. */
PyAPI_FUNC(void) PyFloat_AsReprString(char*, PyFloatObject *v);
/* Write str(v) into the char buffer argument, followed by null byte. The
buffer must be "big enough"; >= 100 is very safe. Note that it's
unusual to be able to get back the float you started with from
PyFloat_AsString's result -- use PyFloat_AsReprString() if you want to
preserve precision across conversions. */
PyAPI_FUNC(void) PyFloat_AsString(char*, PyFloatObject *v);
/* _PyFloat_{Pack,Unpack}{4,8}
*
* The struct and pickle (at least) modules need an efficient platform-
* independent way to store floating-point values as byte strings.
* The Pack routines produce a string from a C double, and the Unpack
* routines produce a C double from such a string. The suffix (4 or 8)
* specifies the number of bytes in the string.
*
* On platforms that appear to use (see _PyFloat_Init()) IEEE-754 formats
* these functions work by copying bits. On other platforms, the formats the
* 4- byte format is identical to the IEEE-754 single precision format, and
* the 8-byte format to the IEEE-754 double precision format, although the
* packing of INFs and NaNs (if such things exist on the platform) isn't
* handled correctly, and attempting to unpack a string containing an IEEE
* INF or NaN will raise an exception.
*
* On non-IEEE platforms with more precision, or larger dynamic range, than
* 754 supports, not all values can be packed; on non-IEEE platforms with less
* precision, or smaller dynamic range, not all values can be unpacked. What
* happens in such cases is partly accidental (alas).
*/
/* The pack routines write 4 or 8 bytes, starting at p. le is a bool
* argument, true if you want the string in little-endian format (exponent
* last, at p+3 or p+7), false if you want big-endian format (exponent
* first, at p).
* Return value: 0 if all is OK, -1 if error (and an exception is
* set, most likely OverflowError).
* There are two problems on non-IEEE platforms:
* 1): What this does is undefined if x is a NaN or infinity.
* 2): -0.0 and +0.0 produce the same string.
*/
PyAPI_FUNC(int) _PyFloat_Pack4(double x, unsigned char *p, int le);
PyAPI_FUNC(int) _PyFloat_Pack8(double x, unsigned char *p, int le);
/* Used to get the important decimal digits of a double */
PyAPI_FUNC(int) _PyFloat_Digits(char *buf, double v, int *signum);
PyAPI_FUNC(void) _PyFloat_DigitsInit(void);
/* The unpack routines read 4 or 8 bytes, starting at p. le is a bool
* argument, true if the string is in little-endian format (exponent
* last, at p+3 or p+7), false if big-endian (exponent first, at p).
* Return value: The unpacked double. On error, this is -1.0 and
* PyErr_Occurred() is true (and an exception is set, most likely
* OverflowError). Note that on a non-IEEE platform this will refuse
* to unpack a string that represents a NaN or infinity.
*/
PyAPI_FUNC(double) _PyFloat_Unpack4(const unsigned char *p, int le);
PyAPI_FUNC(double) _PyFloat_Unpack8(const unsigned char *p, int le);
/* free list api */
PyAPI_FUNC(int) PyFloat_ClearFreeList(void);
/* Format the object based on the format_spec, as defined in PEP 3101
(Advanced String Formatting). */
PyAPI_FUNC(PyObject *) _PyFloat_FormatAdvanced(PyObject *obj,
char *format_spec,
Py_ssize_t format_spec_len);
/* Round a C double x to the closest multiple of 10**-ndigits. Returns a
Python float on success, or NULL (with an appropriate exception set) on
failure. Used in builtin_round in bltinmodule.c. */
PyAPI_FUNC(PyObject *) _Py_double_round(double x, int ndigits);
#ifdef __cplusplus
}
#endif
#endif /* !Py_FLOATOBJECT_H */
include/intobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* Integer object interface */
/*
PyIntObject represents a (long) integer. This is an immutable object;
an integer cannot change its value after creation.
There are functions to create new integer objects, to test an object
for integer-ness, and to get the integer value. The latter functions
returns -1 and sets errno to EBADF if the object is not an PyIntObject.
None of the functions should be applied to nil objects.
The type PyIntObject is (unfortunately) exposed here so we can declare
_Py_TrueStruct and _Py_ZeroStruct in boolobject.h; don't use this.
*/
#ifndef Py_INTOBJECT_H
#define Py_INTOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
// Pyston change: this is not the format we're using
// - actually I think it is but there's no reason to have multiple definitions.
#if 0
typedef struct {
PyObject_HEAD
long ob_ival;
} PyIntObject;
#endif
typedef void PyIntObject;
PyAPI_DATA(PyTypeObject) PyInt_Type;
#define PyInt_Check(op) \
PyType_FastSubclass((op)->ob_type, Py_TPFLAGS_INT_SUBCLASS)
#define PyInt_CheckExact(op) ((op)->ob_type == &PyInt_Type)
PyAPI_FUNC(PyObject *) PyInt_FromString(char*, char**, int);
#ifdef Py_USING_UNICODE
PyAPI_FUNC(PyObject *) PyInt_FromUnicode(Py_UNICODE*, Py_ssize_t, int);
#endif
PyAPI_FUNC(PyObject *) PyInt_FromLong(long);
PyAPI_FUNC(PyObject *) PyInt_FromSize_t(size_t);
PyAPI_FUNC(PyObject *) PyInt_FromSsize_t(Py_ssize_t);
PyAPI_FUNC(long) PyInt_AsLong(PyObject *);
PyAPI_FUNC(Py_ssize_t) PyInt_AsSsize_t(PyObject *);
PyAPI_FUNC(int) _PyInt_AsInt(PyObject *);
PyAPI_FUNC(unsigned long) PyInt_AsUnsignedLongMask(PyObject *);
#ifdef HAVE_LONG_LONG
PyAPI_FUNC(unsigned PY_LONG_LONG) PyInt_AsUnsignedLongLongMask(PyObject *);
#endif
PyAPI_FUNC(long) PyInt_GetMax(void);
/* Macro, trading safety for speed */
#define PyInt_AS_LONG(op) (((PyIntObject *)(op))->ob_ival)
/* These aren't really part of the Int object, but they're handy; the protos
* are necessary for systems that need the magic of PyAPI_FUNC and that want
* to have stropmodule as a dynamically loaded module instead of building it
* into the main Python shared library/DLL. Guido thinks I'm weird for
* building it this way. :-) [cjh]
*/
PyAPI_FUNC(unsigned long) PyOS_strtoul(char *, char **, int);
PyAPI_FUNC(long) PyOS_strtol(char *, char **, int);
/* free list api */
PyAPI_FUNC(int) PyInt_ClearFreeList(void);
/* Convert an integer to the given base. Returns a string.
If base is 2, 8 or 16, add the proper prefix '0b', '0o' or '0x'.
If newstyle is zero, then use the pre-2.6 behavior of octal having
a leading "0" */
PyAPI_FUNC(PyObject*) _PyInt_Format(PyIntObject* v, int base, int newstyle);
/* Format the object based on the format_spec, as defined in PEP 3101
(Advanced String Formatting). */
PyAPI_FUNC(PyObject *) _PyInt_FormatAdvanced(PyObject *obj,
char *format_spec,
Py_ssize_t format_spec_len);
#ifdef __cplusplus
}
#endif
#endif /* !Py_INTOBJECT_H */
include/longobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
#ifndef Py_LONGOBJECT_H
#define Py_LONGOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Long (arbitrary precision) integer object interface */
// Pyston change: this is not the format we're using
#if 0
typedef struct _longobject PyLongObject; /* Revealed in longintrepr.h */
#endif
typedef void PyLongObject;
PyAPI_DATA(PyTypeObject) PyLong_Type;
#define PyLong_Check(op) \
PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_LONG_SUBCLASS)
#define PyLong_CheckExact(op) (Py_TYPE(op) == &PyLong_Type)
PyAPI_FUNC(PyObject *) PyLong_FromLong(long);
PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLong(unsigned long);
PyAPI_FUNC(PyObject *) PyLong_FromDouble(double);
PyAPI_FUNC(PyObject *) PyLong_FromSize_t(size_t);
PyAPI_FUNC(PyObject *) PyLong_FromSsize_t(Py_ssize_t);
PyAPI_FUNC(long) PyLong_AsLong(PyObject *);
PyAPI_FUNC(long) PyLong_AsLongAndOverflow(PyObject *, int *);
PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLong(PyObject *);
PyAPI_FUNC(unsigned long) PyLong_AsUnsignedLongMask(PyObject *);
PyAPI_FUNC(Py_ssize_t) PyLong_AsSsize_t(PyObject *);
PyAPI_FUNC(int) _PyLong_AsInt(PyObject *);
PyAPI_FUNC(PyObject *) PyLong_GetInfo(void);
/* For use by intobject.c only */
#define _PyLong_AsSsize_t PyLong_AsSsize_t
#define _PyLong_FromSize_t PyLong_FromSize_t
#define _PyLong_FromSsize_t PyLong_FromSsize_t
PyAPI_DATA(int) _PyLong_DigitValue[256];
/* _PyLong_Frexp returns a double x and an exponent e such that the
true value is approximately equal to x * 2**e. e is >= 0. x is
0.0 if and only if the input is 0 (in which case, e and x are both
zeroes); otherwise, 0.5 <= abs(x) < 1.0. On overflow, which is
possible if the number of bits doesn't fit into a Py_ssize_t, sets
OverflowError and returns -1.0 for x, 0 for e. */
PyAPI_FUNC(double) _PyLong_Frexp(PyLongObject *a, Py_ssize_t *e);
PyAPI_FUNC(double) PyLong_AsDouble(PyObject *);
PyAPI_FUNC(PyObject *) PyLong_FromVoidPtr(void *);
PyAPI_FUNC(void *) PyLong_AsVoidPtr(PyObject *);
#ifdef HAVE_LONG_LONG
PyAPI_FUNC(PyObject *) PyLong_FromLongLong(PY_LONG_LONG);
PyAPI_FUNC(PyObject *) PyLong_FromUnsignedLongLong(unsigned PY_LONG_LONG);
PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLong(PyObject *);
PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLong(PyObject *);
PyAPI_FUNC(unsigned PY_LONG_LONG) PyLong_AsUnsignedLongLongMask(PyObject *);
PyAPI_FUNC(PY_LONG_LONG) PyLong_AsLongLongAndOverflow(PyObject *, int *);
#endif /* HAVE_LONG_LONG */
PyAPI_FUNC(PyObject *) PyLong_FromString(char *, char **, int);
#ifdef Py_USING_UNICODE
PyAPI_FUNC(PyObject *) PyLong_FromUnicode(Py_UNICODE*, Py_ssize_t, int);
#endif
/* _PyLong_Sign. Return 0 if v is 0, -1 if v < 0, +1 if v > 0.
v must not be NULL, and must be a normalized long.
There are no error cases.
*/
PyAPI_FUNC(int) _PyLong_Sign(PyObject *v);
/* _PyLong_NumBits. Return the number of bits needed to represent the
absolute value of a long. For example, this returns 1 for 1 and -1, 2
for 2 and -2, and 2 for 3 and -3. It returns 0 for 0.
v must not be NULL, and must be a normalized long.
(size_t)-1 is returned and OverflowError set if the true result doesn't
fit in a size_t.
*/
PyAPI_FUNC(size_t) _PyLong_NumBits(PyObject *v);
/* _PyLong_FromByteArray: View the n unsigned bytes as a binary integer in
base 256, and return a Python long with the same numeric value.
If n is 0, the integer is 0. Else:
If little_endian is 1/true, bytes[n-1] is the MSB and bytes[0] the LSB;
else (little_endian is 0/false) bytes[0] is the MSB and bytes[n-1] the
LSB.
If is_signed is 0/false, view the bytes as a non-negative integer.
If is_signed is 1/true, view the bytes as a 2's-complement integer,
non-negative if bit 0x80 of the MSB is clear, negative if set.
Error returns:
+ Return NULL with the appropriate exception set if there's not
enough memory to create the Python long.
*/
PyAPI_FUNC(PyObject *) _PyLong_FromByteArray(
const unsigned char* bytes, size_t n,
int little_endian, int is_signed);
/* _PyLong_AsByteArray: Convert the least-significant 8*n bits of long
v to a base-256 integer, stored in array bytes. Normally return 0,
return -1 on error.
If little_endian is 1/true, store the MSB at bytes[n-1] and the LSB at
bytes[0]; else (little_endian is 0/false) store the MSB at bytes[0] and
the LSB at bytes[n-1].
If is_signed is 0/false, it's an error if v < 0; else (v >= 0) n bytes
are filled and there's nothing special about bit 0x80 of the MSB.
If is_signed is 1/true, bytes is filled with the 2's-complement
representation of v's value. Bit 0x80 of the MSB is the sign bit.
Error returns (-1):
+ is_signed is 0 and v < 0. TypeError is set in this case, and bytes
isn't altered.
+ n isn't big enough to hold the full mathematical value of v. For
example, if is_signed is 0 and there are more digits in the v than
fit in n; or if is_signed is 1, v < 0, and n is just 1 bit shy of
being large enough to hold a sign bit. OverflowError is set in this
case, but bytes holds the least-signficant n bytes of the true value.
*/
PyAPI_FUNC(int) _PyLong_AsByteArray(PyLongObject* v,
unsigned char* bytes, size_t n,
int little_endian, int is_signed);
/* _PyLong_Format: Convert the long to a string object with given base,
appending a base prefix of 0[box] if base is 2, 8 or 16.
Add a trailing "L" if addL is non-zero.
If newstyle is zero, then use the pre-2.6 behavior of octal having
a leading "0", instead of the prefix "0o" */
PyAPI_FUNC(PyObject *) _PyLong_Format(PyObject *aa, int base, int addL, int newstyle);
/* Format the object based on the format_spec, as defined in PEP 3101
(Advanced String Formatting). */
PyAPI_FUNC(PyObject *) _PyLong_FormatAdvanced(PyObject *obj,
char *format_spec,
Py_ssize_t format_spec_len);
#ifdef __cplusplus
}
#endif
#endif /* !Py_LONGOBJECT_H */
include/methodobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* Method object interface */
#ifndef Py_METHODOBJECT_H
#define Py_METHODOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
/* This is about the type 'builtin_function_or_method',
not Python methods in user-defined classes. See classobject.h
for the latter. */
PyAPI_DATA(PyTypeObject) PyCFunction_Type;
#define PyCFunction_Check(op) (Py_TYPE(op) == &PyCFunction_Type)
typedef PyObject *(*PyCFunction)(PyObject *, PyObject *);
typedef PyObject *(*PyCFunctionWithKeywords)(PyObject *, PyObject *,
PyObject *);
typedef PyObject *(*PyNoArgsFunction)(PyObject *);
PyAPI_FUNC(PyCFunction) PyCFunction_GetFunction(PyObject *);
PyAPI_FUNC(PyObject *) PyCFunction_GetSelf(PyObject *);
PyAPI_FUNC(int) PyCFunction_GetFlags(PyObject *);
/* Macros for direct access to these values. Type checks are *not*
done, so use with care. */
#define PyCFunction_GET_FUNCTION(func) \
(((PyCFunctionObject *)func) -> m_ml -> ml_meth)
#define PyCFunction_GET_SELF(func) \
(((PyCFunctionObject *)func) -> m_self)
#define PyCFunction_GET_FLAGS(func) \
(((PyCFunctionObject *)func) -> m_ml -> ml_flags)
PyAPI_FUNC(PyObject *) PyCFunction_Call(PyObject *, PyObject *, PyObject *);
struct PyMethodDef {
const char *ml_name; /* The name of the built-in function/method */
PyCFunction ml_meth; /* The C function that implements it */
int ml_flags; /* Combination of METH_xxx flags, which mostly
describe the args expected by the C func */
const char *ml_doc; /* The __doc__ attribute, or NULL */
};
typedef struct PyMethodDef PyMethodDef;
PyAPI_FUNC(PyObject *) Py_FindMethod(PyMethodDef[], PyObject *, const char *);
#define PyCFunction_New(ML, SELF) PyCFunction_NewEx((ML), (SELF), NULL)
PyAPI_FUNC(PyObject *) PyCFunction_NewEx(PyMethodDef *, PyObject *,
PyObject *);
/* Flag passed to newmethodobject */
#define METH_OLDARGS 0x0000
#define METH_VARARGS 0x0001
#define METH_KEYWORDS 0x0002
/* METH_NOARGS and METH_O must not be combined with the flags above. */
#define METH_NOARGS 0x0004
#define METH_O 0x0008
/* METH_CLASS and METH_STATIC are a little different; these control
the construction of methods for a class. These cannot be used for
functions in modules. */
#define METH_CLASS 0x0010
#define METH_STATIC 0x0020
/* METH_COEXIST allows a method to be entered eventhough a slot has
already filled the entry. When defined, the flag allows a separate
method, "__contains__" for example, to coexist with a defined
slot like sq_contains. */
#define METH_COEXIST 0x0040
typedef struct PyMethodChain {
PyMethodDef *methods; /* Methods of this type */
struct PyMethodChain *link; /* NULL or base type */
} PyMethodChain;
PyAPI_FUNC(PyObject *) Py_FindMethodInChain(PyMethodChain *, PyObject *,
const char *);
typedef struct {
PyObject_HEAD
PyMethodDef *m_ml; /* Description of the C function to call */
PyObject *m_self; /* Passed as 'self' arg to the C func, can be NULL */
PyObject *m_module; /* The __module__ attribute, can be anything */
} PyCFunctionObject;
PyAPI_FUNC(int) PyCFunction_ClearFreeList(void);
#ifdef __cplusplus
}
#endif
#endif /* !Py_METHODOBJECT_H */
include/modsupport.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
#ifndef Py_MODSUPPORT_H
#define Py_MODSUPPORT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Module support interface */
#include <stdarg.h>
/* If PY_SSIZE_T_CLEAN is defined, each functions treats #-specifier
to mean Py_ssize_t */
#ifdef PY_SSIZE_T_CLEAN
#define PyArg_Parse _PyArg_Parse_SizeT
#define PyArg_ParseTuple _PyArg_ParseTuple_SizeT
#define PyArg_ParseTupleAndKeywords _PyArg_ParseTupleAndKeywords_SizeT
#define PyArg_VaParse _PyArg_VaParse_SizeT
#define PyArg_VaParseTupleAndKeywords _PyArg_VaParseTupleAndKeywords_SizeT
#define Py_BuildValue _Py_BuildValue_SizeT
#define Py_VaBuildValue _Py_VaBuildValue_SizeT
#else
PyAPI_FUNC(PyObject *) _Py_VaBuildValue_SizeT(const char *, va_list);
#endif
PyAPI_FUNC(int) PyArg_Parse(PyObject *, const char *, ...);
PyAPI_FUNC(int) PyArg_ParseTuple(PyObject *, const char *, ...) Py_FORMAT_PARSETUPLE(PyArg_ParseTuple, 2, 3);
PyAPI_FUNC(int) PyArg_ParseTupleAndKeywords(PyObject *, PyObject *,
const char *, char **, ...);
PyAPI_FUNC(int) PyArg_UnpackTuple(PyObject *, const char *, Py_ssize_t, Py_ssize_t, ...);
PyAPI_FUNC(PyObject *) Py_BuildValue(const char *, ...);
PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...);
PyAPI_FUNC(int) _PyArg_NoKeywords(const char *funcname, PyObject *kw);
PyAPI_FUNC(int) PyArg_VaParse(PyObject *, const char *, va_list);
PyAPI_FUNC(int) PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *,
const char *, char **, va_list);
PyAPI_FUNC(PyObject *) Py_VaBuildValue(const char *, va_list);
PyAPI_FUNC(int) PyModule_AddObject(PyObject *, const char *, PyObject *);
PyAPI_FUNC(int) PyModule_AddIntConstant(PyObject *, const char *, long);
PyAPI_FUNC(int) PyModule_AddStringConstant(PyObject *, const char *, const char *);
#define PyModule_AddIntMacro(m, c) PyModule_AddIntConstant(m, #c, c)
#define PyModule_AddStringMacro(m, c) PyModule_AddStringConstant(m, #c, c)
#define PYTHON_API_VERSION 1013
#define PYTHON_API_STRING "1013"
/* The API version is maintained (independently from the Python version)
so we can detect mismatches between the interpreter and dynamically
loaded modules. These are diagnosed by an error message but
the module is still loaded (because the mismatch can only be tested
after loading the module). The error message is intended to
explain the core dump a few seconds later.
The symbol PYTHON_API_STRING defines the same value as a string
literal. *** PLEASE MAKE SURE THE DEFINITIONS MATCH. ***
Please add a line or two to the top of this log for each API
version change:
22-Feb-2006 MvL 1013 PEP 353 - long indices for sequence lengths
19-Aug-2002 GvR 1012 Changes to string object struct for
interning changes, saving 3 bytes.
17-Jul-2001 GvR 1011 Descr-branch, just to be on the safe side
25-Jan-2001 FLD 1010 Parameters added to PyCode_New() and
PyFrame_New(); Python 2.1a2
14-Mar-2000 GvR 1009 Unicode API added
3-Jan-1999 GvR 1007 Decided to change back! (Don't reuse 1008!)
3-Dec-1998 GvR 1008 Python 1.5.2b1
18-Jan-1997 GvR 1007 string interning and other speedups
11-Oct-1996 GvR renamed Py_Ellipses to Py_Ellipsis :-(
30-Jul-1996 GvR Slice and ellipses syntax added
23-Jul-1996 GvR For 1.4 -- better safe than sorry this time :-)
7-Nov-1995 GvR Keyword arguments (should've been done at 1.3 :-( )
10-Jan-1995 GvR Renamed globals to new naming scheme
9-Jan-1995 GvR Initial version (incompatible with older API)
*/
#ifdef MS_WINDOWS
/* Special defines for Windows versions used to live here. Things
have changed, and the "Version" is now in a global string variable.
Reason for this is that this for easier branding of a "custom DLL"
without actually needing a recompile. */
#endif /* MS_WINDOWS */
#if SIZEOF_SIZE_T != SIZEOF_INT
/* On a 64-bit system, rename the Py_InitModule4 so that 2.4
modules cannot get loaded into a 2.5 interpreter */
#define Py_InitModule4 Py_InitModule4_64
#endif
#ifdef Py_TRACE_REFS
/* When we are tracing reference counts, rename Py_InitModule4 so
modules compiled with incompatible settings will generate a
link-time error. */
#if SIZEOF_SIZE_T != SIZEOF_INT
#undef Py_InitModule4
#define Py_InitModule4 Py_InitModule4TraceRefs_64
#else
#define Py_InitModule4 Py_InitModule4TraceRefs
#endif
#endif
PyAPI_FUNC(PyObject *) Py_InitModule4(const char *name, PyMethodDef *methods,
const char *doc, PyObject *self,
int apiver);
#define Py_InitModule(name, methods) \
Py_InitModule4(name, methods, (char *)NULL, (PyObject *)NULL, \
PYTHON_API_VERSION)
#define Py_InitModule3(name, methods, doc) \
Py_InitModule4(name, methods, doc, (PyObject *)NULL, \
PYTHON_API_VERSION)
PyAPI_DATA(char *) _Py_PackageContext;
#ifdef __cplusplus
}
#endif
#endif /* !Py_MODSUPPORT_H */
include/object.h
View file @ 89bbb329
// Copyright (c) 2014 Dropbox, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Portions of this file are based on CPython's Include/object.h file
#ifndef PYSTON_EXTINCLUDE_OBJECT_H
#define PYSTON_EXTINCLUDE_OBJECT_H
// This file is originally from CPython 2.7, with modifications for Pyston
#ifndef Py_OBJECT_H
#define Py_OBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
typedef void PyObject;
/* Object and type object interface */
#ifdef __cplusplus
/*
Objects are structures allocated on the heap. Special rules apply to
the use of objects to ensure they are properly garbage-collected.
Objects are never allocated statically or on the stack; they must be
accessed through special macros and functions only. (Type objects are
exceptions to the first rule; the standard types are represented by
statically initialized type objects, although work on type/class unification
for Python 2.2 made it possible to have heap-allocated type objects too).
An object has a 'reference count' that is increased or decreased when a
pointer to the object is copied or deleted; when the reference count
reaches zero there are no references to the object left and it can be
removed from the heap.
[not true in Pyston]
An object has a 'type' that determines what it represents and what kind
of data it contains. An object's type is fixed when it is created.
Types themselves are represented as objects; an object contains a
pointer to the corresponding type object. The type itself has a type
pointer pointing to the object representing the type 'type', which
contains a pointer to itself!).
Objects do not float around in memory; once allocated an object keeps
the same size and address. Objects that must hold variable-size data
can contain pointers to variable-size parts of the object. Not all
objects of the same type have the same size; but the size cannot change
after allocation. (These restrictions are made so a reference to an
object can be simply a pointer -- moving an object would require
updating all the pointers, and changing an object's size would require
moving it if there was another object right next to it.)
[This may not always be true in Pyston]
Objects are always accessed through pointers of the type 'PyObject *'.
The type 'PyObject' is a structure that only contains the reference count
and the type pointer. The actual memory allocated for an object
contains other data that can only be accessed after casting the pointer
to a pointer to a longer structure type. This longer type must start
with the reference count and type fields; the macro PyObject_HEAD should be
used for this (to accommodate for future changes). The implementation
of a particular object type can cast the object pointer to the proper
type and back.
A standard interface exists for objects that contain an array of items
whose size is determined when the object is allocated.
*/
/* Py_DEBUG implies Py_TRACE_REFS. */
#if defined(Py_DEBUG) && !defined(Py_TRACE_REFS)
#define Py_TRACE_REFS
#endif
/* Py_TRACE_REFS implies Py_REF_DEBUG. */
#if defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG)
#define Py_REF_DEBUG
#endif
#ifdef Py_TRACE_REFS
/* Define pointers to support a doubly-linked list of all live heap objects. */
#define _PyObject_HEAD_EXTRA \
struct _object *_ob_next; \
struct _object *_ob_prev;
#define _PyObject_EXTRA_INIT 0, 0,
#else
#define _PyObject_HEAD_EXTRA
#define _PyObject_EXTRA_INIT
#endif
/* PyObject_HEAD defines the initial segment of every PyObject. */
// Pyston change: removed ob_refcnt
#define PyObject_HEAD \
_PyObject_HEAD_EXTRA \
struct _typeobject *ob_type;
// Pyston change: removed '1', the initial refcount
#define PyObject_HEAD_INIT(type) \
_PyObject_EXTRA_INIT \
type,
#define PyVarObject_HEAD_INIT(type, size) \
PyObject_HEAD_INIT(type) size,
/* PyObject_VAR_HEAD defines the initial segment of all variable-size
* container objects. These end with a declaration of an array with 1
* element, but enough space is malloc'ed so that the array actually
* has room for ob_size elements. Note that ob_size is an element count,
* not necessarily a byte count.
*/
#define PyObject_VAR_HEAD \
PyObject_HEAD \
Py_ssize_t ob_size; /* Number of items in variable part */
#define Py_INVALID_SIZE (Py_ssize_t)-1
/* Nothing is actually declared to be a PyObject, but every pointer to
* a Python object can be cast to a PyObject*. This is inheritance built
* by hand. Similarly every pointer to a variable-size Python object can,
* in addition, be cast to PyVarObject*.
*/
struct _object {
PyObject_HEAD
};
// Pyston change: hacks to allow C++ features
#ifndef __cplusplus
typedef struct _object PyObject;
#define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
#else
namespace pyston {
class Box;
}
typedef pyston::Box PyObject;
#define Py_TYPE(ob) ((ob)->cls)
#endif
typedef struct {
PyObject_VAR_HEAD
} PyVarObject;
// Pyston change: removed Py_REFCNT, moved Py_TYPE to above
#define Py_SIZE(ob) (((PyVarObject*)(ob))->ob_size)
/*
Type objects contain a string containing the type name (to help somewhat
in debugging), the allocation parameters (see PyObject_New() and
PyObject_NewVar()),
and methods for accessing objects of the type. Methods are optional, a
nil pointer meaning that particular kind of access is not available for
this type. The Py_DECREF() macro uses the tp_dealloc method without
checking for a nil pointer; it should always be implemented except if
the implementation can guarantee that the reference count will never
reach zero (e.g., for statically allocated type objects).
NB: the methods for certain type groups are now contained in separate
method blocks.
*/
typedef PyObject * (*unaryfunc)(PyObject *);
typedef PyObject * (*binaryfunc)(PyObject *, PyObject *);
typedef PyObject * (*ternaryfunc)(PyObject *, PyObject *, PyObject *);
typedef int (*inquiry)(PyObject *);
typedef Py_ssize_t (*lenfunc)(PyObject *);
typedef int (*coercion)(PyObject **, PyObject **);
typedef PyObject *(*intargfunc)(PyObject *, int) Py_DEPRECATED(2.5);
typedef PyObject *(*intintargfunc)(PyObject *, int, int) Py_DEPRECATED(2.5);
typedef PyObject *(*ssizeargfunc)(PyObject *, Py_ssize_t);
typedef PyObject *(*ssizessizeargfunc)(PyObject *, Py_ssize_t, Py_ssize_t);
typedef int(*intobjargproc)(PyObject *, int, PyObject *);
typedef int(*intintobjargproc)(PyObject *, int, int, PyObject *);
typedef int(*ssizeobjargproc)(PyObject *, Py_ssize_t, PyObject *);
typedef int(*ssizessizeobjargproc)(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *);
typedef int(*objobjargproc)(PyObject *, PyObject *, PyObject *);
/* int-based buffer interface */
typedef int (*getreadbufferproc)(PyObject *, int, void **);
typedef int (*getwritebufferproc)(PyObject *, int, void **);
typedef int (*getsegcountproc)(PyObject *, int *);
typedef int (*getcharbufferproc)(PyObject *, int, char **);
/* ssize_t-based buffer interface */
typedef Py_ssize_t (*readbufferproc)(PyObject *, Py_ssize_t, void **);
typedef Py_ssize_t (*writebufferproc)(PyObject *, Py_ssize_t, void **);
typedef Py_ssize_t (*segcountproc)(PyObject *, Py_ssize_t *);
typedef Py_ssize_t (*charbufferproc)(PyObject *, Py_ssize_t, char **);
/* Py3k buffer interface */
typedef struct bufferinfo {
void *buf;
PyObject *obj; /* owned reference */
Py_ssize_t len;
Py_ssize_t itemsize; /* This is Py_ssize_t so it can be
pointed to by strides in simple case.*/
int readonly;
int ndim;
// Pyston change: changed this from char* to const char*
const char *format;
Py_ssize_t *shape;
Py_ssize_t *strides;
Py_ssize_t *suboffsets;
Py_ssize_t smalltable[2]; /* static store for shape and strides of
mono-dimensional buffers. */
void *internal;
} Py_buffer;
typedef int (*getbufferproc)(PyObject *, Py_buffer *, int);
typedef void (*releasebufferproc)(PyObject *, Py_buffer *);
/* Flags for getting buffers */
#define PyBUF_SIMPLE 0
#define PyBUF_WRITABLE 0x0001
/* we used to include an E, backwards compatible alias */
#define PyBUF_WRITEABLE PyBUF_WRITABLE
#define PyBUF_FORMAT 0x0004
#define PyBUF_ND 0x0008
#define PyBUF_STRIDES (0x0010 | PyBUF_ND)
#define PyBUF_C_CONTIGUOUS (0x0020 | PyBUF_STRIDES)
#define PyBUF_F_CONTIGUOUS (0x0040 | PyBUF_STRIDES)
#define PyBUF_ANY_CONTIGUOUS (0x0080 | PyBUF_STRIDES)
#define PyBUF_INDIRECT (0x0100 | PyBUF_STRIDES)
#define PyBUF_CONTIG (PyBUF_ND | PyBUF_WRITABLE)
#define PyBUF_CONTIG_RO (PyBUF_ND)
#define PyBUF_STRIDED (PyBUF_STRIDES | PyBUF_WRITABLE)
#define PyBUF_STRIDED_RO (PyBUF_STRIDES)
#define PyBUF_RECORDS (PyBUF_STRIDES | PyBUF_WRITABLE | PyBUF_FORMAT)
#define PyBUF_RECORDS_RO (PyBUF_STRIDES | PyBUF_FORMAT)
#define PyBUF_FULL (PyBUF_INDIRECT | PyBUF_WRITABLE | PyBUF_FORMAT)
#define PyBUF_FULL_RO (PyBUF_INDIRECT | PyBUF_FORMAT)
#define PyBUF_READ 0x100
#define PyBUF_WRITE 0x200
#define PyBUF_SHADOW 0x400
/* end Py3k buffer interface */
typedef int (*objobjproc)(PyObject *, PyObject *);
typedef int (*visitproc)(PyObject *, void *);
typedef int (*traverseproc)(PyObject *, visitproc, void *);
typedef struct {
/* For numbers without flag bit Py_TPFLAGS_CHECKTYPES set, all
arguments are guaranteed to be of the object's type (modulo
coercion hacks -- i.e. if the type's coercion function
returns other types, then these are allowed as well). Numbers that
have the Py_TPFLAGS_CHECKTYPES flag bit set should check *both*
arguments for proper type and implement the necessary conversions
in the slot functions themselves. */
binaryfunc nb_add;
binaryfunc nb_subtract;
binaryfunc nb_multiply;
binaryfunc nb_divide;
binaryfunc nb_remainder;
binaryfunc nb_divmod;
ternaryfunc nb_power;
unaryfunc nb_negative;
unaryfunc nb_positive;
unaryfunc nb_absolute;
inquiry nb_nonzero;
unaryfunc nb_invert;
binaryfunc nb_lshift;
binaryfunc nb_rshift;
binaryfunc nb_and;
binaryfunc nb_xor;
binaryfunc nb_or;
coercion nb_coerce;
unaryfunc nb_int;
unaryfunc nb_long;
unaryfunc nb_float;
unaryfunc nb_oct;
unaryfunc nb_hex;
/* Added in release 2.0 */
binaryfunc nb_inplace_add;
binaryfunc nb_inplace_subtract;
binaryfunc nb_inplace_multiply;
binaryfunc nb_inplace_divide;
binaryfunc nb_inplace_remainder;
ternaryfunc nb_inplace_power;
binaryfunc nb_inplace_lshift;
binaryfunc nb_inplace_rshift;
binaryfunc nb_inplace_and;
binaryfunc nb_inplace_xor;
binaryfunc nb_inplace_or;
/* Added in release 2.2 */
/* The following require the Py_TPFLAGS_HAVE_CLASS flag */
binaryfunc nb_floor_divide;
binaryfunc nb_true_divide;
binaryfunc nb_inplace_floor_divide;
binaryfunc nb_inplace_true_divide;
/* Added in release 2.5 */
unaryfunc nb_index;
} PyNumberMethods;
typedef struct {
lenfunc sq_length;
binaryfunc sq_concat;
ssizeargfunc sq_repeat;
ssizeargfunc sq_item;
ssizessizeargfunc sq_slice;
ssizeobjargproc sq_ass_item;
ssizessizeobjargproc sq_ass_slice;
objobjproc sq_contains;
/* Added in release 2.0 */
binaryfunc sq_inplace_concat;
ssizeargfunc sq_inplace_repeat;
} PySequenceMethods;
typedef struct {
lenfunc mp_length;
binaryfunc mp_subscript;
objobjargproc mp_ass_subscript;
} PyMappingMethods;
typedef struct {
readbufferproc bf_getreadbuffer;
writebufferproc bf_getwritebuffer;
segcountproc bf_getsegcount;
charbufferproc bf_getcharbuffer;
getbufferproc bf_getbuffer;
releasebufferproc bf_releasebuffer;
} PyBufferProcs;
typedef void (*freefunc)(void *);
typedef void (*destructor)(PyObject *);
typedef int (*printfunc)(PyObject *, FILE *, int);
typedef PyObject *(*getattrfunc)(PyObject *, char *);
typedef PyObject *(*getattrofunc)(PyObject *, PyObject *);
typedef int (*setattrfunc)(PyObject *, char *, PyObject *);
typedef int (*setattrofunc)(PyObject *, PyObject *, PyObject *);
typedef int (*cmpfunc)(PyObject *, PyObject *);
typedef PyObject *(*reprfunc)(PyObject *);
typedef long (*hashfunc)(PyObject *);
typedef PyObject *(*richcmpfunc) (PyObject *, PyObject *, int);
typedef PyObject *(*getiterfunc) (PyObject *);
typedef PyObject *(*iternextfunc) (PyObject *);
typedef PyObject *(*descrgetfunc) (PyObject *, PyObject *, PyObject *);
typedef int (*descrsetfunc) (PyObject *, PyObject *, PyObject *);
typedef int (*initproc)(PyObject *, PyObject *, PyObject *);
typedef PyObject *(*newfunc)(struct _typeobject *, PyObject *, PyObject *);
typedef PyObject *(*allocfunc)(struct _typeobject *, Py_ssize_t);
// Pyston change: moved the field definitions of a PyTypeObject to this macro
#define PyTypeObject_BODY \
const char *tp_name; /* For printing, in format "<module>.<name>" */ \
Py_ssize_t tp_basicsize, tp_itemsize; /* For allocation */ \
\
/* Methods to implement standard operations */ \
\
destructor tp_dealloc; \
printfunc tp_print; \
getattrfunc tp_getattr; \
setattrfunc tp_setattr; \
cmpfunc tp_compare; \
reprfunc tp_repr; \
\
/* Method suites for standard classes */ \
\
PyNumberMethods *tp_as_number; \
PySequenceMethods *tp_as_sequence; \
PyMappingMethods *tp_as_mapping;\
\
/* More standard operations (here for binary compatibility) */\
\
hashfunc tp_hash;\
ternaryfunc tp_call;\
reprfunc tp_str;\
getattrofunc tp_getattro;\
setattrofunc tp_setattro;\
\
/* Functions to access object as input/output buffer */\
PyBufferProcs *tp_as_buffer;\
\
/* Flags to define presence of optional/expanded features */\
long tp_flags;\
\
const char *tp_doc; /* Documentation string */\
\
/* Assigned meaning in release 2.0 */\
/* call function for all accessible objects */\
traverseproc tp_traverse;\
\
/* delete references to contained objects */\
inquiry tp_clear;\
\
/* Assigned meaning in release 2.1 */\
/* rich comparisons */\
richcmpfunc tp_richcompare;\
\
/* weak reference enabler */\
Py_ssize_t tp_weaklistoffset;\
\
/* Added in release 2.2 */\
/* Iterators */\
getiterfunc tp_iter;\
iternextfunc tp_iternext;\
\
/* Attribute descriptor and subclassing stuff */\
struct PyMethodDef *tp_methods;\
struct PyMemberDef *tp_members;\
struct PyGetSetDef *tp_getset;\
struct _typeobject *tp_base;\
PyObject *tp_dict;\
descrgetfunc tp_descr_get;\
descrsetfunc tp_descr_set;\
Py_ssize_t tp_dictoffset;\
initproc tp_init;\
allocfunc tp_alloc;\
newfunc tp_new;\
freefunc tp_free; /* Low-level free-memory routine */\
inquiry tp_is_gc; /* For PyObject_IS_GC */\
PyObject *tp_bases;\
PyObject *tp_mro; /* method resolution order */\
PyObject *tp_cache;\
PyObject *tp_subclasses;\
PyObject *tp_weaklist;\
destructor tp_del;\
\
/* Type attribute cache version tag. Added in version 2.6 */\
unsigned int tp_version_tag; \
\
/* Pyston changes: added these fields */ \
#ifdef COUNT_ALLOCS
#define PyTypeObject_BODY \
PyTypeObject_BODY \
\
/* these must be last and never explicitly initialized */\
Py_ssize_t tp_allocs;\
Py_ssize_t tp_frees;\
Py_ssize_t tp_maxalloc;\
struct _typeobject *tp_prev;\
struct _typeobject *tp_next;
#endif
struct _typeobject {
PyObject_VAR_HEAD
PyTypeObject_BODY
void* _hcls;
void* _hcattrs;
char _dep_getattrs[56]; // FIXME: this is hardcoding the size of this particular implementation of std::unordered_map
void* _base;
void* _gcvisit_func;
int _attrs_offset;
bool _flags[2];
};
// Pyston change: hacks to allow C++ features
#ifndef __cplusplus
typedef struct _typeobject PyTypeObject;
#else
namespace pyston {
class BoxedClass;
}
typedef pyston::BoxedClass PyTypeObject;
#endif
/* The *real* layout of a type object when allocated on the heap */
typedef struct _heaptypeobject {
/* Note: there's a dependency on the order of these members
in slotptr() in typeobject.c . */
// Pyston change: changed this to 'struct _typeobject'
struct _typeobject ht_type;
PyNumberMethods as_number;
PyMappingMethods as_mapping;
PySequenceMethods as_sequence; /* as_sequence comes after as_mapping,
so that the mapping wins when both
the mapping and the sequence define
a given operator (e.g. __getitem__).
see add_operators() in typeobject.c . */
PyBufferProcs as_buffer;
PyObject *ht_name, *ht_slots;
/* here are optional user slots, followed by the members. */
} PyHeapTypeObject;
/* access macro to the members which are floating "behind" the object */
#define PyHeapType_GET_MEMBERS(etype) \
((PyMemberDef *)(((char *)etype) + Py_TYPE(etype)->tp_basicsize))
/* Generic type check */
PyAPI_FUNC(int) PyType_IsSubtype(PyTypeObject *, PyTypeObject *);
#define PyObject_TypeCheck(ob, tp) \
(Py_TYPE(ob) == (tp) || PyType_IsSubtype(Py_TYPE(ob), (tp)))
// Pyston change:
//PyAPI_DATA(PyTypeObject) PyType_Type; /* built-in 'type' */
PyAPI_DATA(PyTypeObject*) type_cls;
#define PyType_Type (*type_cls)
PyAPI_DATA(PyTypeObject) PyBaseObject_Type; /* built-in 'object' */
PyAPI_DATA(PyTypeObject) PySuper_Type; /* built-in 'super' */
#define PyType_Check(op) \
PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TYPE_SUBCLASS)
#define PyType_CheckExact(op) (Py_TYPE(op) == &PyType_Type)
PyAPI_FUNC(int) PyType_Ready(PyTypeObject *);
PyAPI_FUNC(PyObject *) PyType_GenericAlloc(PyTypeObject *, Py_ssize_t);
PyAPI_FUNC(PyObject *) PyType_GenericNew(PyTypeObject *,
PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) _PyType_Lookup(PyTypeObject *, PyObject *);
PyAPI_FUNC(PyObject *) _PyObject_LookupSpecial(PyObject *, char *, PyObject **);
PyAPI_FUNC(unsigned int) PyType_ClearCache(void);
PyAPI_FUNC(void) PyType_Modified(PyTypeObject *);
/* Generic operations on objects */
PyAPI_FUNC(int) PyObject_Print(PyObject *, FILE *, int);
PyAPI_FUNC(void) _PyObject_Dump(PyObject *);
PyAPI_FUNC(PyObject *) PyObject_Repr(PyObject *);
PyAPI_FUNC(PyObject *) _PyObject_Str(PyObject *);
PyAPI_FUNC(PyObject *) PyObject_Str(PyObject *);
#define PyObject_Bytes PyObject_Str
#ifdef Py_USING_UNICODE
PyAPI_FUNC(PyObject *) PyObject_Unicode(PyObject *);
#endif
PyAPI_FUNC(int) PyObject_Compare(PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) PyObject_RichCompare(PyObject *, PyObject *, int);
PyAPI_FUNC(int) PyObject_RichCompareBool(PyObject *, PyObject *, int);
PyAPI_FUNC(PyObject *) PyObject_GetAttrString(PyObject *, const char *);
PyAPI_FUNC(int) PyObject_SetAttrString(PyObject *, const char *, PyObject *);
PyAPI_FUNC(int) PyObject_HasAttrString(PyObject *, const char *);
PyAPI_FUNC(PyObject *) PyObject_GetAttr(PyObject *, PyObject *);
PyAPI_FUNC(int) PyObject_SetAttr(PyObject *, PyObject *, PyObject *);
PyAPI_FUNC(int) PyObject_HasAttr(PyObject *, PyObject *);
PyAPI_FUNC(PyObject **) _PyObject_GetDictPtr(PyObject *);
PyAPI_FUNC(PyObject *) PyObject_SelfIter(PyObject *);
PyAPI_FUNC(PyObject *) _PyObject_NextNotImplemented(PyObject *);
PyAPI_FUNC(PyObject *) PyObject_GenericGetAttr(PyObject *, PyObject *);
PyAPI_FUNC(int) PyObject_GenericSetAttr(PyObject *,
PyObject *, PyObject *);
PyAPI_FUNC(long) PyObject_Hash(PyObject *);
PyAPI_FUNC(long) PyObject_HashNotImplemented(PyObject *);
PyAPI_FUNC(int) PyObject_IsTrue(PyObject *);
PyAPI_FUNC(int) PyObject_Not(PyObject *);
PyAPI_FUNC(int) PyCallable_Check(PyObject *);
PyAPI_FUNC(int) PyNumber_Coerce(PyObject **, PyObject **);
PyAPI_FUNC(int) PyNumber_CoerceEx(PyObject **, PyObject **);
PyAPI_FUNC(void) PyObject_ClearWeakRefs(PyObject *);
/* A slot function whose address we need to compare */
extern int _PyObject_SlotCompare(PyObject *, PyObject *);
/* Same as PyObject_Generic{Get,Set}Attr, but passing the attributes
dict as the last parameter. */
PyAPI_FUNC(PyObject *)
_PyObject_GenericGetAttrWithDict(PyObject *, PyObject *, PyObject *);
PyAPI_FUNC(int)
_PyObject_GenericSetAttrWithDict(PyObject *, PyObject *,
PyObject *, PyObject *);
/* PyObject_Dir(obj) acts like Python __builtin__.dir(obj), returning a
list of strings. PyObject_Dir(NULL) is like __builtin__.dir(),
returning the names of the current locals. In this case, if there are
no current locals, NULL is returned, and PyErr_Occurred() is false.
*/
PyAPI_FUNC(PyObject *) PyObject_Dir(PyObject *);
/* Helpers for printing recursive container types */
PyAPI_FUNC(int) Py_ReprEnter(PyObject *);
PyAPI_FUNC(void) Py_ReprLeave(PyObject *);
/* Helpers for hash functions */
PyAPI_FUNC(long) _Py_HashDouble(double);
PyAPI_FUNC(long) _Py_HashPointer(void*);
typedef struct {
long prefix;
long suffix;
} _Py_HashSecret_t;
PyAPI_DATA(_Py_HashSecret_t) _Py_HashSecret;
#ifdef Py_DEBUG
PyAPI_DATA(int) _Py_HashSecret_Initialized;
#endif
/* Helper for passing objects to printf and the like */
#define PyObject_REPR(obj) PyString_AS_STRING(PyObject_Repr(obj))
/* Flag bits for printing: */
#define Py_PRINT_RAW 1 /* No string quotes etc. */
/*
`Type flags (tp_flags)
These flags are used to extend the type structure in a backwards-compatible
fashion. Extensions can use the flags to indicate (and test) when a given
type structure contains a new feature. The Python core will use these when
introducing new functionality between major revisions (to avoid mid-version
changes in the PYTHON_API_VERSION).
Arbitration of the flag bit positions will need to be coordinated among
all extension writers who publically release their extensions (this will
be fewer than you might expect!)..
Python 1.5.2 introduced the bf_getcharbuffer slot into PyBufferProcs.
Type definitions should use Py_TPFLAGS_DEFAULT for their tp_flags value.
Code can use PyType_HasFeature(type_ob, flag_value) to test whether the
given type object has a specified feature.
NOTE: when building the core, Py_TPFLAGS_DEFAULT includes
Py_TPFLAGS_HAVE_VERSION_TAG; outside the core, it doesn't. This is so
that extensions that modify tp_dict of their own types directly don't
break, since this was allowed in 2.5. In 3.0 they will have to
manually remove this flag though!
*/
/* PyBufferProcs contains bf_getcharbuffer */
#define Py_TPFLAGS_HAVE_GETCHARBUFFER (1L<<0)
/* PySequenceMethods contains sq_contains */
#define Py_TPFLAGS_HAVE_SEQUENCE_IN (1L<<1)
/* This is here for backwards compatibility. Extensions that use the old GC
* API will still compile but the objects will not be tracked by the GC. */
#define Py_TPFLAGS_GC 0 /* used to be (1L<<2) */
/* PySequenceMethods and PyNumberMethods contain in-place operators */
#define Py_TPFLAGS_HAVE_INPLACEOPS (1L<<3)
/* PyNumberMethods do their own coercion */
#define Py_TPFLAGS_CHECKTYPES (1L<<4)
/* tp_richcompare is defined */
#define Py_TPFLAGS_HAVE_RICHCOMPARE (1L<<5)
/* Objects which are weakly referencable if their tp_weaklistoffset is >0 */
#define Py_TPFLAGS_HAVE_WEAKREFS (1L<<6)
/* tp_iter is defined */
#define Py_TPFLAGS_HAVE_ITER (1L<<7)
/* New members introduced by Python 2.2 exist */
#define Py_TPFLAGS_HAVE_CLASS (1L<<8)
/* Set if the type object is dynamically allocated */
#define Py_TPFLAGS_HEAPTYPE (1L<<9)
/* Set if the type allows subclassing */
#define Py_TPFLAGS_BASETYPE (1L<<10)
/* Set if the type is 'ready' -- fully initialized */
#define Py_TPFLAGS_READY (1L<<12)
/* Set while the type is being 'readied', to prevent recursive ready calls */
#define Py_TPFLAGS_READYING (1L<<13)
/* Objects support garbage collection (see objimp.h) */
#define Py_TPFLAGS_HAVE_GC (1L<<14)
/* These two bits are preserved for Stackless Python, next after this is 17 */
#ifdef STACKLESS
#define Py_TPFLAGS_HAVE_STACKLESS_EXTENSION (3L<<15)
#else
#define Py_TPFLAGS_HAVE_STACKLESS_EXTENSION 0
#endif
/* Objects support nb_index in PyNumberMethods */
#define Py_TPFLAGS_HAVE_INDEX (1L<<17)
/* Objects support type attribute cache */
#define Py_TPFLAGS_HAVE_VERSION_TAG (1L<<18)
#define Py_TPFLAGS_VALID_VERSION_TAG (1L<<19)
/* Type is abstract and cannot be instantiated */
#define Py_TPFLAGS_IS_ABSTRACT (1L<<20)
/* Has the new buffer protocol */
#define Py_TPFLAGS_HAVE_NEWBUFFER (1L<<21)
/* These flags are used to determine if a type is a subclass. */
// Pyston change: we're not setting any of these, so let's comment them out
#if 0
#define Py_TPFLAGS_INT_SUBCLASS (1L<<23)
#define Py_TPFLAGS_LONG_SUBCLASS (1L<<24)
#define Py_TPFLAGS_LIST_SUBCLASS (1L<<25)
#define Py_TPFLAGS_TUPLE_SUBCLASS (1L<<26)
#define Py_TPFLAGS_STRING_SUBCLASS (1L<<27)
#define Py_TPFLAGS_UNICODE_SUBCLASS (1L<<28)
#define Py_TPFLAGS_DICT_SUBCLASS (1L<<29)
#define Py_TPFLAGS_BASE_EXC_SUBCLASS (1L<<30)
#define Py_TPFLAGS_TYPE_SUBCLASS (1L<<31)
#endif
#define Py_TPFLAGS_DEFAULT_EXTERNAL ( \
Py_TPFLAGS_HAVE_GETCHARBUFFER | \
Py_TPFLAGS_HAVE_SEQUENCE_IN | \
Py_TPFLAGS_HAVE_INPLACEOPS | \
Py_TPFLAGS_HAVE_RICHCOMPARE | \
Py_TPFLAGS_HAVE_WEAKREFS | \
Py_TPFLAGS_HAVE_ITER | \
Py_TPFLAGS_HAVE_CLASS | \
Py_TPFLAGS_HAVE_STACKLESS_EXTENSION | \
Py_TPFLAGS_HAVE_INDEX | \
0)
#define Py_TPFLAGS_DEFAULT_CORE (Py_TPFLAGS_DEFAULT_EXTERNAL | \
Py_TPFLAGS_HAVE_VERSION_TAG)
#ifdef Py_BUILD_CORE
#define Py_TPFLAGS_DEFAULT Py_TPFLAGS_DEFAULT_CORE
#else
#define Py_TPFLAGS_DEFAULT Py_TPFLAGS_DEFAULT_EXTERNAL
#endif
#define PyType_HasFeature(t,f) (((t)->tp_flags & (f)) != 0)
#define PyType_FastSubclass(t,f) PyType_HasFeature(t,f)
/*
The macros Py_INCREF(op) and Py_DECREF(op) are used to increment or decrement
reference counts. Py_DECREF calls the object's deallocator function when
the refcount falls to 0; for
objects that don't contain references to other objects or heap memory
this can be the standard function free(). Both macros can be used
wherever a void expression is allowed. The argument must not be a
NULL pointer. If it may be NULL, use Py_XINCREF/Py_XDECREF instead.
The macro _Py_NewReference(op) initialize reference counts to 1, and
in special builds (Py_REF_DEBUG, Py_TRACE_REFS) performs additional
bookkeeping appropriate to the special build.
We assume that the reference count field can never overflow; this can
be proven when the size of the field is the same as the pointer size, so
we ignore the possibility. Provided a C int is at least 32 bits (which
is implicitly assumed in many parts of this code), that's enough for
about 2**31 references to an object.
XXX The following became out of date in Python 2.2, but I'm not sure
XXX what the full truth is now. Certainly, heap-allocated type objects
XXX can and should be deallocated.
Type objects should never be deallocated; the type pointer in an object
is not considered to be a reference to the type object, to save
complications in the deallocation function. (This is actually a
decision that's up to the implementer of each new type so if you want,
you can count such references to the type object.)
*** WARNING*** The Py_DECREF macro must have a side-effect-free argument
since it may evaluate its argument multiple times. (The alternative
would be to mace it a proper function or assign it to a global temporary
variable first, both of which are slower; and in a multi-threaded
environment the global variable trick is not safe.)
*/
/* First define a pile of simple helper macros, one set per special
* build symbol. These either expand to the obvious things, or to
* nothing at all when the special mode isn't in effect. The main
* macros can later be defined just once then, yet expand to different
* things depending on which special build options are and aren't in effect.
* Trust me <wink>: while painful, this is 20x easier to understand than,
* e.g, defining _Py_NewReference five different times in a maze of nested
* #ifdefs (we used to do that -- it was impenetrable).
*/
#ifdef Py_REF_DEBUG
PyAPI_DATA(Py_ssize_t) _Py_RefTotal;
PyAPI_FUNC(void) _Py_NegativeRefcount(const char *fname,
int lineno, PyObject *op);
PyAPI_FUNC(PyObject *) _PyDict_Dummy(void);
PyAPI_FUNC(PyObject *) _PySet_Dummy(void);
PyAPI_FUNC(Py_ssize_t) _Py_GetRefTotal(void);
#define _Py_INC_REFTOTAL _Py_RefTotal++
#define _Py_DEC_REFTOTAL _Py_RefTotal--
#define _Py_REF_DEBUG_COMMA ,
#define _Py_CHECK_REFCNT(OP) \
{ if (((PyObject*)OP)->ob_refcnt < 0) \
_Py_NegativeRefcount(__FILE__, __LINE__, \
(PyObject *)(OP)); \
}
#else
#define _Py_INC_REFTOTAL
#define _Py_DEC_REFTOTAL
#define _Py_REF_DEBUG_COMMA
#define _Py_CHECK_REFCNT(OP) /* a semicolon */;
#endif /* Py_REF_DEBUG */
#ifdef COUNT_ALLOCS
PyAPI_FUNC(void) inc_count(PyTypeObject *);
PyAPI_FUNC(void) dec_count(PyTypeObject *);
#define _Py_INC_TPALLOCS(OP) inc_count(Py_TYPE(OP))
#define _Py_INC_TPFREES(OP) dec_count(Py_TYPE(OP))
#define _Py_DEC_TPFREES(OP) Py_TYPE(OP)->tp_frees--
#define _Py_COUNT_ALLOCS_COMMA ,
#else
#define _Py_INC_TPALLOCS(OP)
#define _Py_INC_TPFREES(OP)
#define _Py_DEC_TPFREES(OP)
#define _Py_COUNT_ALLOCS_COMMA
#endif /* COUNT_ALLOCS */
#ifdef Py_TRACE_REFS
/* Py_TRACE_REFS is such major surgery that we call external routines. */
PyAPI_FUNC(void) _Py_NewReference(PyObject *);
PyAPI_FUNC(void) _Py_ForgetReference(PyObject *);
PyAPI_FUNC(void) _Py_Dealloc(PyObject *);
PyAPI_FUNC(void) _Py_PrintReferences(FILE *);
PyAPI_FUNC(void) _Py_PrintReferenceAddresses(FILE *);
PyAPI_FUNC(void) _Py_AddToAllObjects(PyObject *, int force);
#else
/* Without Py_TRACE_REFS, there's little enough to do that we expand code
* inline.
*/
#define _Py_NewReference(op) ( \
_Py_INC_TPALLOCS(op) _Py_COUNT_ALLOCS_COMMA \
_Py_INC_REFTOTAL _Py_REF_DEBUG_COMMA \
Py_REFCNT(op) = 1)
#define _Py_ForgetReference(op) _Py_INC_TPFREES(op)
#define _Py_Dealloc(op) ( \
_Py_INC_TPFREES(op) _Py_COUNT_ALLOCS_COMMA \
(*Py_TYPE(op)->tp_dealloc)((PyObject *)(op)))
#endif /* !Py_TRACE_REFS */
// Pyston change: made Py_INCREF and Py_DECREF into noops
#define Py_INCREF(op) (op)
#define Py_DECREF(op) (op)
/* Safely decref `op` and set `op` to NULL, especially useful in tp_clear
* and tp_dealloc implementatons.
*
* Note that "the obvious" code can be deadly:
*
* Py_XDECREF(op);
* op = NULL;
*
* Typically, `op` is something like self->containee, and `self` is done
* using its `containee` member. In the code sequence above, suppose
* `containee` is non-NULL with a refcount of 1. Its refcount falls to
* 0 on the first line, which can trigger an arbitrary amount of code,
* possibly including finalizers (like __del__ methods or weakref callbacks)
* coded in Python, which in turn can release the GIL and allow other threads
* to run, etc. Such code may even invoke methods of `self` again, or cause
* cyclic gc to trigger, but-- oops! --self->containee still points to the
* object being torn down, and it may be in an insane state while being torn
* down. This has in fact been a rich historic source of miserable (rare &
* hard-to-diagnose) segfaulting (and other) bugs.
*
* The safe way is:
*
* Py_CLEAR(op);
*
* That arranges to set `op` to NULL _before_ decref'ing, so that any code
* triggered as a side-effect of `op` getting torn down no longer believes
* `op` points to a valid object.
*
* There are cases where it's safe to use the naive code, but they're brittle.
* For example, if `op` points to a Python integer, you know that destroying
* one of those can't cause problems -- but in part that relies on that
* Python integers aren't currently weakly referencable. Best practice is
* to use Py_CLEAR() even if you can't think of a reason for why you need to.
*/
#define Py_CLEAR(op) \
do { \
if (op) { \
PyObject *_py_tmp = (PyObject *)(op); \
(op) = NULL; \
Py_DECREF(_py_tmp); \
} \
} while (0)
/* Macros to use in case the object pointer may be NULL: */
// Pyston change: made these noops as well
#define Py_XINCREF(op) (op)
#define Py_XDECREF(op) (op)
/*
These are provided as conveniences to Python runtime embedders, so that
they can have object code that is not dependent on Python compilation flags.
*/
PyAPI_FUNC(void) Py_IncRef(PyObject *);
PyAPI_FUNC(void) Py_DecRef(PyObject *);
/*
_Py_NoneStruct is an object of undefined type which can be used in contexts
where NULL (nil) is not suitable (since NULL often means 'error').
Don't forget to apply Py_INCREF() when returning this value!!!
*/
// Pyston change: replaced Py_None with just None
PyAPI_DATA(PyObject*) None;
#define Py_None None
//PyAPI_DATA(PyObject) _Py_NoneStruct; /* Don't use this directly */
//#define Py_None (&_Py_NoneStruct)
/* Macro for returning Py_None from a function */
#define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None
/*
Py_NotImplemented is a singleton used to signal that an operation is
not implemented for a given type combination.
*/
PyAPI_DATA(PyObject) _Py_NotImplementedStruct; /* Don't use this directly */
#define Py_NotImplemented (&_Py_NotImplementedStruct)
/* Rich comparison opcodes */
#define Py_LT 0
#define Py_LE 1
#define Py_EQ 2
#define Py_NE 3
#define Py_GT 4
#define Py_GE 5
/* Maps Py_LT to Py_GT, ..., Py_GE to Py_LE.
* Defined in object.c.
*/
PyAPI_DATA(int) _Py_SwappedOp[];
/*
Define staticforward and statichere for source compatibility with old
C extensions.
The staticforward define was needed to support certain broken C
compilers (notably SCO ODT 3.0, perhaps early AIX as well) botched the
static keyword when it was used with a forward declaration of a static
initialized structure. Standard C allows the forward declaration with
static, and we've decided to stop catering to broken C compilers.
(In fact, we expect that the compilers are all fixed eight years later.)
*/
#define staticforward static
#define statichere static
/*
More conventions
================
Argument Checking
-----------------
Functions that take objects as arguments normally don't check for nil
arguments, but they do check the type of the argument, and return an
error if the function doesn't apply to the type.
Failure Modes
-------------
Functions may fail for a variety of reasons, including running out of
memory. This is communicated to the caller in two ways: an error string
is set (see errors.h), and the function result differs: functions that
normally return a pointer return NULL for failure, functions returning
an integer return -1 (which could be a legal return value too!), and
other functions return 0 for success and -1 for failure.
Callers should always check for errors before using the result. If
an error was set, the caller must either explicitly clear it, or pass
the error on to its caller.
Reference Counts
----------------
It takes a while to get used to the proper usage of reference counts.
Functions that create an object set the reference count to 1; such new
objects must be stored somewhere or destroyed again with Py_DECREF().
Some functions that 'store' objects, such as PyTuple_SetItem() and
PyList_SetItem(),
don't increment the reference count of the object, since the most
frequent use is to store a fresh object. Functions that 'retrieve'
objects, such as PyTuple_GetItem() and PyDict_GetItemString(), also
don't increment
the reference count, since most frequently the object is only looked at
quickly. Thus, to retrieve an object and store it again, the caller
must call Py_INCREF() explicitly.
NOTE: functions that 'consume' a reference count, like
PyList_SetItem(), consume the reference even if the object wasn't
successfully stored, to simplify error handling.
It seems attractive to make other functions that take an object as
argument consume a reference count; however, this may quickly get
confusing (even the current practice is already confusing). Consider
it carefully, it may save lots of calls to Py_INCREF() and Py_DECREF() at
times.
*/
/* Trashcan mechanism, thanks to Christian Tismer.
When deallocating a container object, it's possible to trigger an unbounded
chain of deallocations, as each Py_DECREF in turn drops the refcount on "the
next" object in the chain to 0. This can easily lead to stack faults, and
especially in threads (which typically have less stack space to work with).
A container object that participates in cyclic gc can avoid this by
bracketing the body of its tp_dealloc function with a pair of macros:
static void
mytype_dealloc(mytype *p)
{
... declarations go here ...
PyObject_GC_UnTrack(p); // must untrack first
Py_TRASHCAN_SAFE_BEGIN(p)
... The body of the deallocator goes here, including all calls ...
... to Py_DECREF on contained objects. ...
Py_TRASHCAN_SAFE_END(p)
}
CAUTION: Never return from the middle of the body! If the body needs to
"get out early", put a label immediately before the Py_TRASHCAN_SAFE_END
call, and goto it. Else the call-depth counter (see below) will stay
above 0 forever, and the trashcan will never get emptied.
How it works: The BEGIN macro increments a call-depth counter. So long
as this counter is small, the body of the deallocator is run directly without
further ado. But if the counter gets large, it instead adds p to a list of
objects to be deallocated later, skips the body of the deallocator, and
resumes execution after the END macro. The tp_dealloc routine then returns
without deallocating anything (and so unbounded call-stack depth is avoided).
When the call stack finishes unwinding again, code generated by the END macro
notices this, and calls another routine to deallocate all the objects that
may have been added to the list of deferred deallocations. In effect, a
chain of N deallocations is broken into N / PyTrash_UNWIND_LEVEL pieces,
with the call stack never exceeding a depth of PyTrash_UNWIND_LEVEL.
*/
/* This is the old private API, invoked by the macros before 2.7.4.
Kept for binary compatibility of extensions. */
PyAPI_FUNC(void) _PyTrash_deposit_object(PyObject*);
PyAPI_FUNC(void) _PyTrash_destroy_chain(void);
PyAPI_DATA(int) _PyTrash_delete_nesting;
PyAPI_DATA(PyObject *) _PyTrash_delete_later;
/* The new thread-safe private API, invoked by the macros below. */
PyAPI_FUNC(void) _PyTrash_thread_deposit_object(PyObject*);
PyAPI_FUNC(void) _PyTrash_thread_destroy_chain(void);
#define PyTrash_UNWIND_LEVEL 50
/* Note the workaround for when the thread state is NULL (issue #17703) */
#define Py_TRASHCAN_SAFE_BEGIN(op) \
do { \
PyThreadState *_tstate = PyThreadState_GET(); \
if (!_tstate || \
_tstate->trash_delete_nesting < PyTrash_UNWIND_LEVEL) { \
if (_tstate) \
++_tstate->trash_delete_nesting;
/* The body of the deallocator is here. */
#define Py_TRASHCAN_SAFE_END(op) \
if (_tstate) { \
--_tstate->trash_delete_nesting; \
if (_tstate->trash_delete_later \
&& _tstate->trash_delete_nesting <= 0) \
_PyTrash_thread_destroy_chain(); \
} \
} \
else \
_PyTrash_thread_deposit_object((PyObject*)op); \
} while (0);
#ifdef __cplusplus
}
#endif
#endif /* !Py_OBJECT_H */
include/objimpl.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* The PyObject_ memory family: high-level object memory interfaces.
See pymem.h for the low-level PyMem_ family.
*/
#ifndef Py_OBJIMPL_H
#define Py_OBJIMPL_H
#include "pymem.h"
#ifdef __cplusplus
extern "C" {
#endif
/* BEWARE:
Each interface exports both functions and macros. Extension modules should
use the functions, to ensure binary compatibility across Python versions.
Because the Python implementation is free to change internal details, and
the macros may (or may not) expose details for speed, if you do use the
macros you must recompile your extensions with each Python release.
Never mix calls to PyObject_ memory functions with calls to the platform
malloc/realloc/ calloc/free, or with calls to PyMem_.
*/
/*
Functions and macros for modules that implement new object types.
- PyObject_New(type, typeobj) allocates memory for a new object of the given
type, and initializes part of it. 'type' must be the C structure type used
to represent the object, and 'typeobj' the address of the corresponding
type object. Reference count and type pointer are filled in; the rest of
the bytes of the object are *undefined*! The resulting expression type is
'type *'. The size of the object is determined by the tp_basicsize field
of the type object.
- PyObject_NewVar(type, typeobj, n) is similar but allocates a variable-size
object with room for n items. In addition to the refcount and type pointer
fields, this also fills in the ob_size field.
- PyObject_Del(op) releases the memory allocated for an object. It does not
run a destructor -- it only frees the memory. PyObject_Free is identical.
- PyObject_Init(op, typeobj) and PyObject_InitVar(op, typeobj, n) don't
allocate memory. Instead of a 'type' parameter, they take a pointer to a
new object (allocated by an arbitrary allocator), and initialize its object
header fields.
Note that objects created with PyObject_{New, NewVar} are allocated using the
specialized Python allocator (implemented in obmalloc.c), if WITH_PYMALLOC is
enabled. In addition, a special debugging allocator is used if PYMALLOC_DEBUG
is also #defined.
In case a specific form of memory management is needed (for example, if you
must use the platform malloc heap(s), or shared memory, or C++ local storage or
operator new), you must first allocate the object with your custom allocator,
then pass its pointer to PyObject_{Init, InitVar} for filling in its Python-
specific fields: reference count, type pointer, possibly others. You should
be aware that Python no control over these objects because they don't
cooperate with the Python memory manager. Such objects may not be eligible
for automatic garbage collection and you have to make sure that they are
released accordingly whenever their destructor gets called (cf. the specific
form of memory management you're using).
Unless you have specific memory management requirements, use
PyObject_{New, NewVar, Del}.
*/
/*
* Raw object memory interface
* ===========================
*/
/* Functions to call the same malloc/realloc/free as used by Python's
object allocator. If WITH_PYMALLOC is enabled, these may differ from
the platform malloc/realloc/free. The Python object allocator is
designed for fast, cache-conscious allocation of many "small" objects,
and with low hidden memory overhead.
PyObject_Malloc(0) returns a unique non-NULL pointer if possible.
PyObject_Realloc(NULL, n) acts like PyObject_Malloc(n).
PyObject_Realloc(p != NULL, 0) does not return NULL, or free the memory
at p.
Returned pointers must be checked for NULL explicitly; no action is
performed on failure other than to return NULL (no warning it printed, no
exception is set, etc).
For allocating objects, use PyObject_{New, NewVar} instead whenever
possible. The PyObject_{Malloc, Realloc, Free} family is exposed
so that you can exploit Python's small-block allocator for non-object
uses. If you must use these routines to allocate object memory, make sure
the object gets initialized via PyObject_{Init, InitVar} after obtaining
the raw memory.
*/
PyAPI_FUNC(void *) PyObject_Malloc(size_t);
PyAPI_FUNC(void *) PyObject_Realloc(void *, size_t);
PyAPI_FUNC(void) PyObject_Free(void *);
/* Macros */
#ifdef WITH_PYMALLOC
#ifdef PYMALLOC_DEBUG /* WITH_PYMALLOC && PYMALLOC_DEBUG */
PyAPI_FUNC(void *) _PyObject_DebugMalloc(size_t nbytes);
PyAPI_FUNC(void *) _PyObject_DebugRealloc(void *p, size_t nbytes);
PyAPI_FUNC(void) _PyObject_DebugFree(void *p);
PyAPI_FUNC(void) _PyObject_DebugDumpAddress(const void *p);
PyAPI_FUNC(void) _PyObject_DebugCheckAddress(const void *p);
PyAPI_FUNC(void) _PyObject_DebugMallocStats(void);
PyAPI_FUNC(void *) _PyObject_DebugMallocApi(char api, size_t nbytes);
PyAPI_FUNC(void *) _PyObject_DebugReallocApi(char api, void *p, size_t nbytes);
PyAPI_FUNC(void) _PyObject_DebugFreeApi(char api, void *p);
PyAPI_FUNC(void) _PyObject_DebugCheckAddressApi(char api, const void *p);
PyAPI_FUNC(void *) _PyMem_DebugMalloc(size_t nbytes);
PyAPI_FUNC(void *) _PyMem_DebugRealloc(void *p, size_t nbytes);
PyAPI_FUNC(void) _PyMem_DebugFree(void *p);
#define PyObject_MALLOC _PyObject_DebugMalloc
#define PyObject_Malloc _PyObject_DebugMalloc
#define PyObject_REALLOC _PyObject_DebugRealloc
#define PyObject_Realloc _PyObject_DebugRealloc
#define PyObject_FREE _PyObject_DebugFree
#define PyObject_Free _PyObject_DebugFree
#else /* WITH_PYMALLOC && ! PYMALLOC_DEBUG */
#define PyObject_MALLOC PyObject_Malloc
#define PyObject_REALLOC PyObject_Realloc
#define PyObject_FREE PyObject_Free
#endif
#else /* ! WITH_PYMALLOC */
#define PyObject_MALLOC PyMem_MALLOC
#define PyObject_REALLOC PyMem_REALLOC
#define PyObject_FREE PyMem_FREE
#endif /* WITH_PYMALLOC */
#define PyObject_Del PyObject_Free
#define PyObject_DEL PyObject_FREE
/* for source compatibility with 2.2 */
#define _PyObject_Del PyObject_Free
/*
* Generic object allocator interface
* ==================================
*/
/* Functions */
PyAPI_FUNC(PyObject *) PyObject_Init(PyObject *, PyTypeObject *);
PyAPI_FUNC(PyVarObject *) PyObject_InitVar(PyVarObject *,
PyTypeObject *, Py_ssize_t);
PyAPI_FUNC(PyObject *) _PyObject_New(PyTypeObject *);
PyAPI_FUNC(PyVarObject *) _PyObject_NewVar(PyTypeObject *, Py_ssize_t);
#define PyObject_New(type, typeobj) \
( (type *) _PyObject_New(typeobj) )
#define PyObject_NewVar(type, typeobj, n) \
( (type *) _PyObject_NewVar((typeobj), (n)) )
/* Macros trading binary compatibility for speed. See also pymem.h.
Note that these macros expect non-NULL object pointers.*/
#define PyObject_INIT(op, typeobj) \
( Py_TYPE(op) = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
#define PyObject_INIT_VAR(op, typeobj, size) \
( Py_SIZE(op) = (size), PyObject_INIT((op), (typeobj)) )
#define _PyObject_SIZE(typeobj) ( (typeobj)->tp_basicsize )
/* _PyObject_VAR_SIZE returns the number of bytes (as size_t) allocated for a
vrbl-size object with nitems items, exclusive of gc overhead (if any). The
value is rounded up to the closest multiple of sizeof(void *), in order to
ensure that pointer fields at the end of the object are correctly aligned
for the platform (this is of special importance for subclasses of, e.g.,
str or long, so that pointers can be stored after the embedded data).
Note that there's no memory wastage in doing this, as malloc has to
return (at worst) pointer-aligned memory anyway.
*/
#if ((SIZEOF_VOID_P - 1) & SIZEOF_VOID_P) != 0
# error "_PyObject_VAR_SIZE requires SIZEOF_VOID_P be a power of 2"
#endif
#define _PyObject_VAR_SIZE(typeobj, nitems) \
(size_t) \
( ( (typeobj)->tp_basicsize + \
(nitems)*(typeobj)->tp_itemsize + \
(SIZEOF_VOID_P - 1) \
) & ~(SIZEOF_VOID_P - 1) \
)
#define PyObject_NEW(type, typeobj) \
( (type *) PyObject_Init( \
(PyObject *) PyObject_MALLOC( _PyObject_SIZE(typeobj) ), (typeobj)) )
#define PyObject_NEW_VAR(type, typeobj, n) \
( (type *) PyObject_InitVar( \
(PyVarObject *) PyObject_MALLOC(_PyObject_VAR_SIZE((typeobj),(n)) ),\
(typeobj), (n)) )
/* This example code implements an object constructor with a custom
allocator, where PyObject_New is inlined, and shows the important
distinction between two steps (at least):
1) the actual allocation of the object storage;
2) the initialization of the Python specific fields
in this storage with PyObject_{Init, InitVar}.
PyObject *
YourObject_New(...)
{
PyObject *op;
op = (PyObject *) Your_Allocator(_PyObject_SIZE(YourTypeStruct));
if (op == NULL)
return PyErr_NoMemory();
PyObject_Init(op, &YourTypeStruct);
op->ob_field = value;
...
return op;
}
Note that in C++, the use of the new operator usually implies that
the 1st step is performed automatically for you, so in a C++ class
constructor you would start directly with PyObject_Init/InitVar
*/
/*
* Garbage Collection Support
* ==========================
*/
/* C equivalent of gc.collect(). */
PyAPI_FUNC(Py_ssize_t) PyGC_Collect(void);
/* Test if a type has a GC head */
#define PyType_IS_GC(t) PyType_HasFeature((t), Py_TPFLAGS_HAVE_GC)
/* Test if an object has a GC head */
#define PyObject_IS_GC(o) (PyType_IS_GC(Py_TYPE(o)) && \
(Py_TYPE(o)->tp_is_gc == NULL || Py_TYPE(o)->tp_is_gc(o)))
PyAPI_FUNC(PyVarObject *) _PyObject_GC_Resize(PyVarObject *, Py_ssize_t);
#define PyObject_GC_Resize(type, op, n) \
( (type *) _PyObject_GC_Resize((PyVarObject *)(op), (n)) )
/* for source compatibility with 2.2 */
#define _PyObject_GC_Del PyObject_GC_Del
/* GC information is stored BEFORE the object structure. */
typedef union _gc_head {
struct {
union _gc_head *gc_next;
union _gc_head *gc_prev;
Py_ssize_t gc_refs;
} gc;
long double dummy; /* force worst-case alignment */
} PyGC_Head;
extern PyGC_Head *_PyGC_generation0;
#define _Py_AS_GC(o) ((PyGC_Head *)(o)-1)
#define _PyGC_REFS_UNTRACKED (-2)
#define _PyGC_REFS_REACHABLE (-3)
#define _PyGC_REFS_TENTATIVELY_UNREACHABLE (-4)
/* Tell the GC to track this object. NB: While the object is tracked the
* collector it must be safe to call the ob_traverse method. */
#define _PyObject_GC_TRACK(o) do { \
PyGC_Head *g = _Py_AS_GC(o); \
if (g->gc.gc_refs != _PyGC_REFS_UNTRACKED) \
Py_FatalError("GC object already tracked"); \
g->gc.gc_refs = _PyGC_REFS_REACHABLE; \
g->gc.gc_next = _PyGC_generation0; \
g->gc.gc_prev = _PyGC_generation0->gc.gc_prev; \
g->gc.gc_prev->gc.gc_next = g; \
_PyGC_generation0->gc.gc_prev = g; \
} while (0);
/* Tell the GC to stop tracking this object.
* gc_next doesn't need to be set to NULL, but doing so is a good
* way to provoke memory errors if calling code is confused.
*/
#define _PyObject_GC_UNTRACK(o) do { \
PyGC_Head *g = _Py_AS_GC(o); \
assert(g->gc.gc_refs != _PyGC_REFS_UNTRACKED); \
g->gc.gc_refs = _PyGC_REFS_UNTRACKED; \
g->gc.gc_prev->gc.gc_next = g->gc.gc_next; \
g->gc.gc_next->gc.gc_prev = g->gc.gc_prev; \
g->gc.gc_next = NULL; \
} while (0);
/* True if the object is currently tracked by the GC. */
#define _PyObject_GC_IS_TRACKED(o) \
((_Py_AS_GC(o))->gc.gc_refs != _PyGC_REFS_UNTRACKED)
/* True if the object may be tracked by the GC in the future, or already is.
This can be useful to implement some optimizations. */
#define _PyObject_GC_MAY_BE_TRACKED(obj) \
(PyObject_IS_GC(obj) && \
(!PyTuple_CheckExact(obj) || _PyObject_GC_IS_TRACKED(obj)))
PyAPI_FUNC(PyObject *) _PyObject_GC_Malloc(size_t);
PyAPI_FUNC(PyObject *) _PyObject_GC_New(PyTypeObject *);
PyAPI_FUNC(PyVarObject *) _PyObject_GC_NewVar(PyTypeObject *, Py_ssize_t);
PyAPI_FUNC(void) PyObject_GC_Track(void *);
PyAPI_FUNC(void) PyObject_GC_UnTrack(void *);
PyAPI_FUNC(void) PyObject_GC_Del(void *);
#define PyObject_GC_New(type, typeobj) \
( (type *) _PyObject_GC_New(typeobj) )
#define PyObject_GC_NewVar(type, typeobj, n) \
( (type *) _PyObject_GC_NewVar((typeobj), (n)) )
/* Utility macro to help write tp_traverse functions.
* To use this macro, the tp_traverse function must name its arguments
* "visit" and "arg". This is intended to keep tp_traverse functions
* looking as much alike as possible.
*/
#define Py_VISIT(op) \
do { \
if (op) { \
int vret = visit((PyObject *)(op), arg); \
if (vret) \
return vret; \
} \
} while (0)
/* This is here for the sake of backwards compatibility. Extensions that
* use the old GC API will still compile but the objects will not be
* tracked by the GC. */
#define PyGC_HEAD_SIZE 0
#define PyObject_GC_Init(op)
#define PyObject_GC_Fini(op)
#define PyObject_AS_GC(op) (op)
#define PyObject_FROM_GC(op) (op)
/* Test if a type supports weak references */
#define PyType_SUPPORTS_WEAKREFS(t) \
(PyType_HasFeature((t), Py_TPFLAGS_HAVE_WEAKREFS) \
&& ((t)->tp_weaklistoffset > 0))
#define PyObject_GET_WEAKREFS_LISTPTR(o) \
((PyObject **) (((char *) (o)) + Py_TYPE(o)->tp_weaklistoffset))
#ifdef __cplusplus
}
#endif
#endif /* !Py_OBJIMPL_H */
include/pyerrors.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
#ifndef Py_ERRORS_H
#define Py_ERRORS_H
#ifdef __cplusplus
extern "C" {
#endif
/* Error objects */
typedef struct {
PyObject_HEAD
PyObject *dict;
PyObject *args;
PyObject *message;
} PyBaseExceptionObject;
typedef struct {
PyObject_HEAD
PyObject *dict;
PyObject *args;
PyObject *message;
PyObject *msg;
PyObject *filename;
PyObject *lineno;
PyObject *offset;
PyObject *text;
PyObject *print_file_and_line;
} PySyntaxErrorObject;
#ifdef Py_USING_UNICODE
typedef struct {
PyObject_HEAD
PyObject *dict;
PyObject *args;
PyObject *message;
PyObject *encoding;
PyObject *object;
Py_ssize_t start;
Py_ssize_t end;
PyObject *reason;
} PyUnicodeErrorObject;
#endif
typedef struct {
PyObject_HEAD
PyObject *dict;
PyObject *args;
PyObject *message;
PyObject *code;
} PySystemExitObject;
typedef struct {
PyObject_HEAD
PyObject *dict;
PyObject *args;
PyObject *message;
PyObject *myerrno;
PyObject *strerror;
PyObject *filename;
} PyEnvironmentErrorObject;
#ifdef MS_WINDOWS
typedef struct {
PyObject_HEAD
PyObject *dict;
PyObject *args;
PyObject *message;
PyObject *myerrno;
PyObject *strerror;
PyObject *filename;
PyObject *winerror;
} PyWindowsErrorObject;
#endif
/* Error handling definitions */
PyAPI_FUNC(void) PyErr_SetNone(PyObject *);
PyAPI_FUNC(void) PyErr_SetObject(PyObject *, PyObject *);
PyAPI_FUNC(void) PyErr_SetString(PyObject *, const char *);
PyAPI_FUNC(PyObject *) PyErr_Occurred(void);
PyAPI_FUNC(void) PyErr_Clear(void);
PyAPI_FUNC(void) PyErr_Fetch(PyObject **, PyObject **, PyObject **);
PyAPI_FUNC(void) PyErr_Restore(PyObject *, PyObject *, PyObject *);
#ifdef Py_DEBUG
#define _PyErr_OCCURRED() PyErr_Occurred()
#else
#define _PyErr_OCCURRED() (_PyThreadState_Current->curexc_type)
#endif
/* Error testing and normalization */
PyAPI_FUNC(int) PyErr_GivenExceptionMatches(PyObject *, PyObject *);
PyAPI_FUNC(int) PyErr_ExceptionMatches(PyObject *);
PyAPI_FUNC(void) PyErr_NormalizeException(PyObject**, PyObject**, PyObject**);
/* */
#define PyExceptionClass_Check(x) \
(PyClass_Check((x)) || (PyType_Check((x)) && \
PyType_FastSubclass((PyTypeObject*)(x), Py_TPFLAGS_BASE_EXC_SUBCLASS)))
#define PyExceptionInstance_Check(x) \
(PyInstance_Check((x)) || \
PyType_FastSubclass((x)->ob_type, Py_TPFLAGS_BASE_EXC_SUBCLASS))
#define PyExceptionClass_Name(x) \
(PyClass_Check((x)) \
? PyString_AS_STRING(((PyClassObject*)(x))->cl_name) \
: (char *)(((PyTypeObject*)(x))->tp_name))
#define PyExceptionInstance_Class(x) \
((PyInstance_Check((x)) \
? (PyObject*)((PyInstanceObject*)(x))->in_class \
: (PyObject*)((x)->ob_type)))
/* Predefined exceptions */
PyAPI_DATA(PyObject *) PyExc_BaseException;
PyAPI_DATA(PyObject *) PyExc_Exception;
PyAPI_DATA(PyObject *) PyExc_StopIteration;
PyAPI_DATA(PyObject *) PyExc_GeneratorExit;
PyAPI_DATA(PyObject *) PyExc_StandardError;
PyAPI_DATA(PyObject *) PyExc_ArithmeticError;
PyAPI_DATA(PyObject *) PyExc_LookupError;
PyAPI_DATA(PyObject *) PyExc_AssertionError;
PyAPI_DATA(PyObject *) PyExc_AttributeError;
PyAPI_DATA(PyObject *) PyExc_EOFError;
PyAPI_DATA(PyObject *) PyExc_FloatingPointError;
PyAPI_DATA(PyObject *) PyExc_EnvironmentError;
PyAPI_DATA(PyObject *) PyExc_IOError;
PyAPI_DATA(PyObject *) PyExc_OSError;
PyAPI_DATA(PyObject *) PyExc_ImportError;
PyAPI_DATA(PyObject *) PyExc_IndexError;
PyAPI_DATA(PyObject *) PyExc_KeyError;
PyAPI_DATA(PyObject *) PyExc_KeyboardInterrupt;
PyAPI_DATA(PyObject *) PyExc_MemoryError;
PyAPI_DATA(PyObject *) PyExc_NameError;
PyAPI_DATA(PyObject *) PyExc_OverflowError;
PyAPI_DATA(PyObject *) PyExc_RuntimeError;
PyAPI_DATA(PyObject *) PyExc_NotImplementedError;
PyAPI_DATA(PyObject *) PyExc_SyntaxError;
PyAPI_DATA(PyObject *) PyExc_IndentationError;
PyAPI_DATA(PyObject *) PyExc_TabError;
PyAPI_DATA(PyObject *) PyExc_ReferenceError;
PyAPI_DATA(PyObject *) PyExc_SystemError;
PyAPI_DATA(PyObject *) PyExc_SystemExit;
PyAPI_DATA(PyObject *) PyExc_TypeError;
PyAPI_DATA(PyObject *) PyExc_UnboundLocalError;
PyAPI_DATA(PyObject *) PyExc_UnicodeError;
PyAPI_DATA(PyObject *) PyExc_UnicodeEncodeError;
PyAPI_DATA(PyObject *) PyExc_UnicodeDecodeError;
PyAPI_DATA(PyObject *) PyExc_UnicodeTranslateError;
PyAPI_DATA(PyObject *) PyExc_ValueError;
PyAPI_DATA(PyObject *) PyExc_ZeroDivisionError;
#ifdef MS_WINDOWS
PyAPI_DATA(PyObject *) PyExc_WindowsError;
#endif
#ifdef __VMS
PyAPI_DATA(PyObject *) PyExc_VMSError;
#endif
PyAPI_DATA(PyObject *) PyExc_BufferError;
PyAPI_DATA(PyObject *) PyExc_MemoryErrorInst;
PyAPI_DATA(PyObject *) PyExc_RecursionErrorInst;
/* Predefined warning categories */
PyAPI_DATA(PyObject *) PyExc_Warning;
PyAPI_DATA(PyObject *) PyExc_UserWarning;
PyAPI_DATA(PyObject *) PyExc_DeprecationWarning;
PyAPI_DATA(PyObject *) PyExc_PendingDeprecationWarning;
PyAPI_DATA(PyObject *) PyExc_SyntaxWarning;
PyAPI_DATA(PyObject *) PyExc_RuntimeWarning;
PyAPI_DATA(PyObject *) PyExc_FutureWarning;
PyAPI_DATA(PyObject *) PyExc_ImportWarning;
PyAPI_DATA(PyObject *) PyExc_UnicodeWarning;
PyAPI_DATA(PyObject *) PyExc_BytesWarning;
/* Convenience functions */
PyAPI_FUNC(int) PyErr_BadArgument(void);
PyAPI_FUNC(PyObject *) PyErr_NoMemory(void);
PyAPI_FUNC(PyObject *) PyErr_SetFromErrno(PyObject *);
PyAPI_FUNC(PyObject *) PyErr_SetFromErrnoWithFilenameObject(
PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) PyErr_SetFromErrnoWithFilename(
PyObject *, const char *);
#ifdef MS_WINDOWS
PyAPI_FUNC(PyObject *) PyErr_SetFromErrnoWithUnicodeFilename(
PyObject *, const Py_UNICODE *);
#endif /* MS_WINDOWS */
PyAPI_FUNC(PyObject *) PyErr_Format(PyObject *, const char *, ...)
Py_GCC_ATTRIBUTE((format(printf, 2, 3)));
#ifdef MS_WINDOWS
PyAPI_FUNC(PyObject *) PyErr_SetFromWindowsErrWithFilenameObject(
int, const char *);
PyAPI_FUNC(PyObject *) PyErr_SetFromWindowsErrWithFilename(
int, const char *);
PyAPI_FUNC(PyObject *) PyErr_SetFromWindowsErrWithUnicodeFilename(
int, const Py_UNICODE *);
PyAPI_FUNC(PyObject *) PyErr_SetFromWindowsErr(int);
PyAPI_FUNC(PyObject *) PyErr_SetExcFromWindowsErrWithFilenameObject(
PyObject *,int, PyObject *);
PyAPI_FUNC(PyObject *) PyErr_SetExcFromWindowsErrWithFilename(
PyObject *,int, const char *);
PyAPI_FUNC(PyObject *) PyErr_SetExcFromWindowsErrWithUnicodeFilename(
PyObject *,int, const Py_UNICODE *);
PyAPI_FUNC(PyObject *) PyErr_SetExcFromWindowsErr(PyObject *, int);
#endif /* MS_WINDOWS */
/* Export the old function so that the existing API remains available: */
PyAPI_FUNC(void) PyErr_BadInternalCall(void);
PyAPI_FUNC(void) _PyErr_BadInternalCall(char *filename, int lineno);
/* Mask the old API with a call to the new API for code compiled under
Python 2.0: */
#define PyErr_BadInternalCall() _PyErr_BadInternalCall(__FILE__, __LINE__)
/* Function to create a new exception */
PyAPI_FUNC(PyObject *) PyErr_NewException(
char *name, PyObject *base, PyObject *dict);
PyAPI_FUNC(PyObject *) PyErr_NewExceptionWithDoc(
char *name, char *doc, PyObject *base, PyObject *dict);
PyAPI_FUNC(void) PyErr_WriteUnraisable(PyObject *);
/* In sigcheck.c or signalmodule.c */
PyAPI_FUNC(int) PyErr_CheckSignals(void);
PyAPI_FUNC(void) PyErr_SetInterrupt(void);
/* In signalmodule.c */
int PySignal_SetWakeupFd(int fd);
/* Support for adding program text to SyntaxErrors */
PyAPI_FUNC(void) PyErr_SyntaxLocation(const char *, int);
PyAPI_FUNC(PyObject *) PyErr_ProgramText(const char *, int);
#ifdef Py_USING_UNICODE
/* The following functions are used to create and modify unicode
exceptions from C */
/* create a UnicodeDecodeError object */
PyAPI_FUNC(PyObject *) PyUnicodeDecodeError_Create(
const char *, const char *, Py_ssize_t, Py_ssize_t, Py_ssize_t, const char *);
/* create a UnicodeEncodeError object */
PyAPI_FUNC(PyObject *) PyUnicodeEncodeError_Create(
const char *, const Py_UNICODE *, Py_ssize_t, Py_ssize_t, Py_ssize_t, const char *);
/* create a UnicodeTranslateError object */
PyAPI_FUNC(PyObject *) PyUnicodeTranslateError_Create(
const Py_UNICODE *, Py_ssize_t, Py_ssize_t, Py_ssize_t, const char *);
/* get the encoding attribute */
PyAPI_FUNC(PyObject *) PyUnicodeEncodeError_GetEncoding(PyObject *);
PyAPI_FUNC(PyObject *) PyUnicodeDecodeError_GetEncoding(PyObject *);
/* get the object attribute */
PyAPI_FUNC(PyObject *) PyUnicodeEncodeError_GetObject(PyObject *);
PyAPI_FUNC(PyObject *) PyUnicodeDecodeError_GetObject(PyObject *);
PyAPI_FUNC(PyObject *) PyUnicodeTranslateError_GetObject(PyObject *);
/* get the value of the start attribute (the int * may not be NULL)
return 0 on success, -1 on failure */
PyAPI_FUNC(int) PyUnicodeEncodeError_GetStart(PyObject *, Py_ssize_t *);
PyAPI_FUNC(int) PyUnicodeDecodeError_GetStart(PyObject *, Py_ssize_t *);
PyAPI_FUNC(int) PyUnicodeTranslateError_GetStart(PyObject *, Py_ssize_t *);
/* assign a new value to the start attribute
return 0 on success, -1 on failure */
PyAPI_FUNC(int) PyUnicodeEncodeError_SetStart(PyObject *, Py_ssize_t);
PyAPI_FUNC(int) PyUnicodeDecodeError_SetStart(PyObject *, Py_ssize_t);
PyAPI_FUNC(int) PyUnicodeTranslateError_SetStart(PyObject *, Py_ssize_t);
/* get the value of the end attribute (the int *may not be NULL)
return 0 on success, -1 on failure */
PyAPI_FUNC(int) PyUnicodeEncodeError_GetEnd(PyObject *, Py_ssize_t *);
PyAPI_FUNC(int) PyUnicodeDecodeError_GetEnd(PyObject *, Py_ssize_t *);
PyAPI_FUNC(int) PyUnicodeTranslateError_GetEnd(PyObject *, Py_ssize_t *);
/* assign a new value to the end attribute
return 0 on success, -1 on failure */
PyAPI_FUNC(int) PyUnicodeEncodeError_SetEnd(PyObject *, Py_ssize_t);
PyAPI_FUNC(int) PyUnicodeDecodeError_SetEnd(PyObject *, Py_ssize_t);
PyAPI_FUNC(int) PyUnicodeTranslateError_SetEnd(PyObject *, Py_ssize_t);
/* get the value of the reason attribute */
PyAPI_FUNC(PyObject *) PyUnicodeEncodeError_GetReason(PyObject *);
PyAPI_FUNC(PyObject *) PyUnicodeDecodeError_GetReason(PyObject *);
PyAPI_FUNC(PyObject *) PyUnicodeTranslateError_GetReason(PyObject *);
/* assign a new value to the reason attribute
return 0 on success, -1 on failure */
PyAPI_FUNC(int) PyUnicodeEncodeError_SetReason(
PyObject *, const char *);
PyAPI_FUNC(int) PyUnicodeDecodeError_SetReason(
PyObject *, const char *);
PyAPI_FUNC(int) PyUnicodeTranslateError_SetReason(
PyObject *, const char *);
#endif
/* These APIs aren't really part of the error implementation, but
often needed to format error messages; the native C lib APIs are
not available on all platforms, which is why we provide emulations
for those platforms in Python/mysnprintf.c,
WARNING: The return value of snprintf varies across platforms; do
not rely on any particular behavior; eventually the C99 defn may
be reliable.
*/
#if defined(MS_WIN32) && !defined(HAVE_SNPRINTF)
# define HAVE_SNPRINTF
# define snprintf _snprintf
# define vsnprintf _vsnprintf
#endif
#include <stdarg.h>
PyAPI_FUNC(int) PyOS_snprintf(char *str, size_t size, const char *format, ...)
Py_GCC_ATTRIBUTE((format(printf, 3, 4)));
PyAPI_FUNC(int) PyOS_vsnprintf(char *str, size_t size, const char *format, va_list va)
Py_GCC_ATTRIBUTE((format(printf, 3, 0)));
#ifdef __cplusplus
}
#endif
#endif /* !Py_ERRORS_H */
include/pymem.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* The PyMem_ family: low-level memory allocation interfaces.
See objimpl.h for the PyObject_ memory family.
*/
#ifndef Py_PYMEM_H
#define Py_PYMEM_H
#include "pyport.h"
#ifdef __cplusplus
extern "C" {
#endif
/* BEWARE:
Each interface exports both functions and macros. Extension modules should
use the functions, to ensure binary compatibility across Python versions.
Because the Python implementation is free to change internal details, and
the macros may (or may not) expose details for speed, if you do use the
macros you must recompile your extensions with each Python release.
Never mix calls to PyMem_ with calls to the platform malloc/realloc/
calloc/free. For example, on Windows different DLLs may end up using
different heaps, and if you use PyMem_Malloc you'll get the memory from the
heap used by the Python DLL; it could be a disaster if you free()'ed that
directly in your own extension. Using PyMem_Free instead ensures Python
can return the memory to the proper heap. As another example, in
PYMALLOC_DEBUG mode, Python wraps all calls to all PyMem_ and PyObject_
memory functions in special debugging wrappers that add additional
debugging info to dynamic memory blocks. The system routines have no idea
what to do with that stuff, and the Python wrappers have no idea what to do
with raw blocks obtained directly by the system routines then.
The GIL must be held when using these APIs.
*/
/*
* Raw memory interface
* ====================
*/
/* Functions
Functions supplying platform-independent semantics for malloc/realloc/
free. These functions make sure that allocating 0 bytes returns a distinct
non-NULL pointer (whenever possible -- if we're flat out of memory, NULL
may be returned), even if the platform malloc and realloc don't.
Returned pointers must be checked for NULL explicitly. No action is
performed on failure (no exception is set, no warning is printed, etc).
*/
PyAPI_FUNC(void *) PyMem_Malloc(size_t);
PyAPI_FUNC(void *) PyMem_Realloc(void *, size_t);
PyAPI_FUNC(void) PyMem_Free(void *);
/* Starting from Python 1.6, the wrappers Py_{Malloc,Realloc,Free} are
no longer supported. They used to call PyErr_NoMemory() on failure. */
/* Macros. */
#ifdef PYMALLOC_DEBUG
/* Redirect all memory operations to Python's debugging allocator. */
#define PyMem_MALLOC _PyMem_DebugMalloc
#define PyMem_REALLOC _PyMem_DebugRealloc
#define PyMem_FREE _PyMem_DebugFree
#else /* ! PYMALLOC_DEBUG */
/* PyMem_MALLOC(0) means malloc(1). Some systems would return NULL
for malloc(0), which would be treated as an error. Some platforms
would return a pointer with no memory behind it, which would break
pymalloc. To solve these problems, allocate an extra byte. */
/* Returns NULL to indicate error if a negative size or size larger than
Py_ssize_t can represent is supplied. Helps prevents security holes. */
#define PyMem_MALLOC(n) ((size_t)(n) > (size_t)PY_SSIZE_T_MAX ? NULL \
: malloc((n) ? (n) : 1))
#define PyMem_REALLOC(p, n) ((size_t)(n) > (size_t)PY_SSIZE_T_MAX ? NULL \
: realloc((p), (n) ? (n) : 1))
#define PyMem_FREE free
#endif /* PYMALLOC_DEBUG */
/*
* Type-oriented memory interface
* ==============================
*
* Allocate memory for n objects of the given type. Returns a new pointer
* or NULL if the request was too large or memory allocation failed. Use
* these macros rather than doing the multiplication yourself so that proper
* overflow checking is always done.
*/
#define PyMem_New(type, n) \
( ((size_t)(n) > PY_SSIZE_T_MAX / sizeof(type)) ? NULL : \
( (type *) PyMem_Malloc((n) * sizeof(type)) ) )
#define PyMem_NEW(type, n) \
( ((size_t)(n) > PY_SSIZE_T_MAX / sizeof(type)) ? NULL : \
( (type *) PyMem_MALLOC((n) * sizeof(type)) ) )
/*
* The value of (p) is always clobbered by this macro regardless of success.
* The caller MUST check if (p) is NULL afterwards and deal with the memory
* error if so. This means the original value of (p) MUST be saved for the
* caller's memory error handler to not lose track of it.
*/
#define PyMem_Resize(p, type, n) \
( (p) = ((size_t)(n) > PY_SSIZE_T_MAX / sizeof(type)) ? NULL : \
(type *) PyMem_Realloc((p), (n) * sizeof(type)) )
#define PyMem_RESIZE(p, type, n) \
( (p) = ((size_t)(n) > PY_SSIZE_T_MAX / sizeof(type)) ? NULL : \
(type *) PyMem_REALLOC((p), (n) * sizeof(type)) )
/* PyMem{Del,DEL} are left over from ancient days, and shouldn't be used
* anymore. They're just confusing aliases for PyMem_{Free,FREE} now.
*/
#define PyMem_Del PyMem_Free
#define PyMem_DEL PyMem_FREE
#ifdef __cplusplus
}
#endif
#endif /* !Py_PYMEM_H */
include/pyport.h 0 → 100644
View file @ 89bbb329
// This file is based off of CPython's pyport.h, though it has been heavily modified/cut down,
// largely due to the lack of a way to generate pyconfig.h at the moment.
#ifndef Py_PYPORT_H
#define Py_PYPORT_H
#include <stdint.h>
// Pyston change: these are just hard-coded for now:
#define SIZEOF_VOID_P 8
#define SIZEOF_SIZE_T 8
#define SIZEOF_INT 4
typedef ssize_t Py_ssize_t;
#define Py_FORMAT_PARSETUPLE(func,p1,p2)
#define Py_GCC_ATTRIBUTE(x) __attribute__(x)
// Pyston change: the rest of these have just been copied from CPython's pyport.h, in an arbitrary order:
/* Py_DEPRECATED(version)
* Declare a variable, type, or function deprecated.
* Usage:
* extern int old_var Py_DEPRECATED(2.3);
* typedef int T1 Py_DEPRECATED(2.4);
* extern int x() Py_DEPRECATED(2.5);
*/
#if defined(__GNUC__) && ((__GNUC__ >= 4) || \
(__GNUC__ == 3) && (__GNUC_MINOR__ >= 1))
#define Py_DEPRECATED(VERSION_UNUSED) __attribute__((__deprecated__))
#else
#define Py_DEPRECATED(VERSION_UNUSED)
#endif
/* Declarations for symbol visibility.
PyAPI_FUNC(type): Declares a public Python API function and return type
PyAPI_DATA(type): Declares public Python data and its type
PyMODINIT_FUNC: A Python module init function. If these functions are
inside the Python core, they are private to the core.
If in an extension module, it may be declared with
external linkage depending on the platform.
As a number of platforms support/require "__declspec(dllimport/dllexport)",
we support a HAVE_DECLSPEC_DLL macro to save duplication.
*/
/*
All windows ports, except cygwin, are handled in PC/pyconfig.h.
BeOS and cygwin are the only other autoconf platform requiring special
linkage handling and both of these use __declspec().
*/
#if defined(__CYGWIN__) || defined(__BEOS__)
# define HAVE_DECLSPEC_DLL
#endif
/* only get special linkage if built as shared or platform is Cygwin */
#if defined(Py_ENABLE_SHARED) || defined(__CYGWIN__)
# if defined(HAVE_DECLSPEC_DLL)
# ifdef Py_BUILD_CORE
# define PyAPI_FUNC(RTYPE) __declspec(dllexport) RTYPE
# define PyAPI_DATA(RTYPE) extern __declspec(dllexport) RTYPE
/* module init functions inside the core need no external linkage */
/* except for Cygwin to handle embedding (FIXME: BeOS too?) */
# if defined(__CYGWIN__)
# define PyMODINIT_FUNC __declspec(dllexport) void
# else /* __CYGWIN__ */
# define PyMODINIT_FUNC void
# endif /* __CYGWIN__ */
# else /* Py_BUILD_CORE */
/* Building an extension module, or an embedded situation */
/* public Python functions and data are imported */
/* Under Cygwin, auto-import functions to prevent compilation */
/* failures similar to those described at the bottom of 4.1: */
/* http://docs.python.org/extending/windows.html#a-cookbook-approach */
# if !defined(__CYGWIN__)
# define PyAPI_FUNC(RTYPE) __declspec(dllimport) RTYPE
# endif /* !__CYGWIN__ */
# define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE
/* module init functions outside the core must be exported */
# if defined(__cplusplus)
# define PyMODINIT_FUNC extern "C" __declspec(dllexport) void
# else /* __cplusplus */
# define PyMODINIT_FUNC __declspec(dllexport) void
# endif /* __cplusplus */
# endif /* Py_BUILD_CORE */
# endif /* HAVE_DECLSPEC */
#endif /* Py_ENABLE_SHARED */
/* If no external linkage macros defined by now, create defaults */
#ifndef PyAPI_FUNC
# define PyAPI_FUNC(RTYPE) RTYPE
#endif
#ifndef PyAPI_DATA
# define PyAPI_DATA(RTYPE) extern RTYPE
#endif
#ifndef PyMODINIT_FUNC
# if defined(__cplusplus)
# define PyMODINIT_FUNC extern "C" void
# else /* __cplusplus */
# define PyMODINIT_FUNC void
# endif /* __cplusplus */
#endif
/* Deprecated DL_IMPORT and DL_EXPORT macros */
#if defined(Py_ENABLE_SHARED) && defined (HAVE_DECLSPEC_DLL)
# if defined(Py_BUILD_CORE)
# define DL_IMPORT(RTYPE) __declspec(dllexport) RTYPE
# define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
# else
# define DL_IMPORT(RTYPE) __declspec(dllimport) RTYPE
# define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
# endif
#endif
#ifndef DL_EXPORT
# define DL_EXPORT(RTYPE) RTYPE
#endif
#ifndef DL_IMPORT
# define DL_IMPORT(RTYPE) RTYPE
#endif
#ifdef Py_DEBUG
#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) \
(assert((WIDE)(NARROW)(VALUE) == (VALUE)), (NARROW)(VALUE))
#else
#define Py_SAFE_DOWNCAST(VALUE, WIDE, NARROW) (NARROW)(VALUE)
#endif
#endif /* Py_PYPORT_H */
include/stringobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* String (str/bytes) object interface */
#ifndef Py_STRINGOBJECT_H
#define Py_STRINGOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
#include <stdarg.h>
/*
Type PyStringObject represents a character string. An extra zero byte is
reserved at the end to ensure it is zero-terminated, but a size is
present so strings with null bytes in them can be represented. This
is an immutable object type.
There are functions to create new string objects, to test
an object for string-ness, and to get the
string value. The latter function returns a null pointer
if the object is not of the proper type.
There is a variant that takes an explicit size as well as a
variant that assumes a zero-terminated string. Note that none of the
functions should be applied to nil objects.
*/
/* Caching the hash (ob_shash) saves recalculation of a string's hash value.
Interning strings (ob_sstate) tries to ensure that only one string
object with a given value exists, so equality tests can be one pointer
comparison. This is generally restricted to strings that "look like"
Python identifiers, although the intern() builtin can be used to force
interning of any string.
Together, these sped the interpreter by up to 20%. */
// Pyston change: comment this out since this is not the format we're using
#if 0
typedef struct {
PyObject_VAR_HEAD
long ob_shash;
int ob_sstate;
char ob_sval[1];
/* Invariants:
* ob_sval contains space for 'ob_size+1' elements.
* ob_sval[ob_size] == 0.
* ob_shash is the hash of the string or -1 if not computed yet.
* ob_sstate != 0 iff the string object is in stringobject.c's
* 'interned' dictionary; in this case the two references
* from 'interned' to this object are *not counted* in ob_refcnt.
*/
} PyStringObject;
#endif
#define SSTATE_NOT_INTERNED 0
#define SSTATE_INTERNED_MORTAL 1
#define SSTATE_INTERNED_IMMORTAL 2
PyAPI_DATA(PyTypeObject) PyBaseString_Type;
PyAPI_DATA(PyTypeObject) PyString_Type;
#define PyString_Check(op) \
PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_STRING_SUBCLASS)
#define PyString_CheckExact(op) (Py_TYPE(op) == &PyString_Type)
PyAPI_FUNC(PyObject *) PyString_FromStringAndSize(const char *, Py_ssize_t);
PyAPI_FUNC(PyObject *) PyString_FromString(const char *);
PyAPI_FUNC(PyObject *) PyString_FromFormatV(const char*, va_list)
Py_GCC_ATTRIBUTE((format(printf, 1, 0)));
PyAPI_FUNC(PyObject *) PyString_FromFormat(const char*, ...)
Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
PyAPI_FUNC(Py_ssize_t) PyString_Size(PyObject *);
PyAPI_FUNC(char *) PyString_AsString(PyObject *);
PyAPI_FUNC(PyObject *) PyString_Repr(PyObject *, int);
PyAPI_FUNC(void) PyString_Concat(PyObject **, PyObject *);
PyAPI_FUNC(void) PyString_ConcatAndDel(PyObject **, PyObject *);
PyAPI_FUNC(int) _PyString_Resize(PyObject **, Py_ssize_t);
PyAPI_FUNC(int) _PyString_Eq(PyObject *, PyObject*);
PyAPI_FUNC(PyObject *) PyString_Format(PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) _PyString_FormatLong(PyObject*, int, int,
int, char**, int*);
PyAPI_FUNC(PyObject *) PyString_DecodeEscape(const char *, Py_ssize_t,
const char *, Py_ssize_t,
const char *);
PyAPI_FUNC(void) PyString_InternInPlace(PyObject **);
PyAPI_FUNC(void) PyString_InternImmortal(PyObject **);
PyAPI_FUNC(PyObject *) PyString_InternFromString(const char *);
PyAPI_FUNC(void) _Py_ReleaseInternedStrings(void);
/* Use only if you know it's a string */
#define PyString_CHECK_INTERNED(op) (((PyStringObject *)(op))->ob_sstate)
/* Macro, trading safety for speed */
// Pyston changes: these aren't direct macros any more [they potentially could be though]
#define PyString_AS_STRING(op) PyString_AsString(op)
#define PyString_GET_SIZE(op) PyString_Size(op)
//#define PyString_AS_STRING(op) (((PyStringObject *)(op))->ob_sval)
//#define PyString_GET_SIZE(op) Py_SIZE(op)
/* _PyString_Join(sep, x) is like sep.join(x). sep must be PyStringObject*,
x must be an iterable object. */
PyAPI_FUNC(PyObject *) _PyString_Join(PyObject *sep, PyObject *x);
/* --- Generic Codecs ----------------------------------------------------- */
/* Create an object by decoding the encoded string s of the
given size. */
PyAPI_FUNC(PyObject*) PyString_Decode(
const char *s, /* encoded string */
Py_ssize_t size, /* size of buffer */
const char *encoding, /* encoding */
const char *errors /* error handling */
);
/* Encodes a char buffer of the given size and returns a
Python object. */
PyAPI_FUNC(PyObject*) PyString_Encode(
const char *s, /* string char buffer */
Py_ssize_t size, /* number of chars to encode */
const char *encoding, /* encoding */
const char *errors /* error handling */
);
/* Encodes a string object and returns the result as Python
object. */
PyAPI_FUNC(PyObject*) PyString_AsEncodedObject(
PyObject *str, /* string object */
const char *encoding, /* encoding */
const char *errors /* error handling */
);
/* Encodes a string object and returns the result as Python string
object.
If the codec returns an Unicode object, the object is converted
back to a string using the default encoding.
DEPRECATED - use PyString_AsEncodedObject() instead. */
PyAPI_FUNC(PyObject*) PyString_AsEncodedString(
PyObject *str, /* string object */
const char *encoding, /* encoding */
const char *errors /* error handling */
);
/* Decodes a string object and returns the result as Python
object. */
PyAPI_FUNC(PyObject*) PyString_AsDecodedObject(
PyObject *str, /* string object */
const char *encoding, /* encoding */
const char *errors /* error handling */
);
/* Decodes a string object and returns the result as Python string
object.
If the codec returns an Unicode object, the object is converted
back to a string using the default encoding.
DEPRECATED - use PyString_AsDecodedObject() instead. */
PyAPI_FUNC(PyObject*) PyString_AsDecodedString(
PyObject *str, /* string object */
const char *encoding, /* encoding */
const char *errors /* error handling */
);
/* Provides access to the internal data buffer and size of a string
object or the default encoded version of an Unicode object. Passing
NULL as *len parameter will force the string buffer to be
0-terminated (passing a string with embedded NULL characters will
cause an exception). */
PyAPI_FUNC(int) PyString_AsStringAndSize(
register PyObject *obj, /* string or Unicode object */
register char **s, /* pointer to buffer variable */
register Py_ssize_t *len /* pointer to length variable or NULL
(only possible for 0-terminated
strings) */
);
/* Using the current locale, insert the thousands grouping
into the string pointed to by buffer. For the argument descriptions,
see Objects/stringlib/localeutil.h */
PyAPI_FUNC(Py_ssize_t) _PyString_InsertThousandsGroupingLocale(char *buffer,
Py_ssize_t n_buffer,
char *digits,
Py_ssize_t n_digits,
Py_ssize_t min_width);
/* Using explicit passed-in values, insert the thousands grouping
into the string pointed to by buffer. For the argument descriptions,
see Objects/stringlib/localeutil.h */
PyAPI_FUNC(Py_ssize_t) _PyString_InsertThousandsGrouping(char *buffer,
Py_ssize_t n_buffer,
char *digits,
Py_ssize_t n_digits,
Py_ssize_t min_width,
const char *grouping,
const char *thousands_sep);
/* Format the object based on the format_spec, as defined in PEP 3101
(Advanced String Formatting). */
PyAPI_FUNC(PyObject *) _PyBytes_FormatAdvanced(PyObject *obj,
char *format_spec,
Py_ssize_t format_spec_len);
#ifdef __cplusplus
}
#endif
#endif /* !Py_STRINGOBJECT_H */
include/tupleobject.h 0 → 100644
View file @ 89bbb329
// This file is originally from CPython 2.7, with modifications for Pyston
/* Tuple object interface */
#ifndef Py_TUPLEOBJECT_H
#define Py_TUPLEOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
/*
Another generally useful object type is a tuple of object pointers.
For Python, this is an immutable type. C code can change the tuple items
(but not their number), and even use tuples are general-purpose arrays of
object references, but in general only brand new tuples should be mutated,
not ones that might already have been exposed to Python code.
*** WARNING *** PyTuple_SetItem does not increment the new item's reference
count, but does decrement the reference count of the item it replaces,
if not nil. It does *decrement* the reference count if it is *not*
inserted in the tuple. Similarly, PyTuple_GetItem does not increment the
returned item's reference count.
*/
// Pyston change: this is not the format we're using (but maybe it should be)
#if 0
typedef struct {
PyObject_VAR_HEAD
PyObject *ob_item[1];
/* ob_item contains space for 'ob_size' elements.
* Items must normally not be NULL, except during construction when
* the tuple is not yet visible outside the function that builds it.
*/
} PyTupleObject;
#endif
PyAPI_DATA(PyTypeObject) PyTuple_Type;
#define PyTuple_Check(op) \
PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TUPLE_SUBCLASS)
#define PyTuple_CheckExact(op) (Py_TYPE(op) == &PyTuple_Type)
PyAPI_FUNC(PyObject *) PyTuple_New(Py_ssize_t size);
PyAPI_FUNC(Py_ssize_t) PyTuple_Size(PyObject *);
PyAPI_FUNC(PyObject *) PyTuple_GetItem(PyObject *, Py_ssize_t);
PyAPI_FUNC(int) PyTuple_SetItem(PyObject *, Py_ssize_t, PyObject *);
PyAPI_FUNC(PyObject *) PyTuple_GetSlice(PyObject *, Py_ssize_t, Py_ssize_t);
PyAPI_FUNC(int) _PyTuple_Resize(PyObject **, Py_ssize_t);
PyAPI_FUNC(PyObject *) PyTuple_Pack(Py_ssize_t, ...);
PyAPI_FUNC(void) _PyTuple_MaybeUntrack(PyObject *);
/* Macro, trading safety for speed */
#define PyTuple_GET_ITEM(op, i) (((PyTupleObject *)(op))->ob_item[i])
#define PyTuple_GET_SIZE(op) Py_SIZE(op)
/* Macro, *only* to be used to fill in brand new tuples */
#define PyTuple_SET_ITEM(op, i, v) (((PyTupleObject *)(op))->ob_item[i] = v)
PyAPI_FUNC(int) PyTuple_ClearFreeList(void);
#ifdef __cplusplus
}
#endif
#endif /* !Py_TUPLEOBJECT_H */
src/runtime/capi.cpp
View file @ 89bbb329
......@@ -150,9 +150,9 @@ extern "C" PyObject* Py_BuildValue(const char* arg0, ...) {
return None;
}
extern "C" bool PyArg_ParseTuple(PyObject* tuple, const char* fmt, ...) {
extern "C" int PyArg_ParseTuple(PyObject* tuple, const char* fmt, ...) {
if (strcmp("", fmt) == 0)
return true;
return 1;
assert(strcmp("O", fmt) == 0);
......@@ -167,7 +167,7 @@ extern "C" bool PyArg_ParseTuple(PyObject* tuple, const char* fmt, ...) {
va_end(ap);
return true;
return 1;
}
BoxedModule* importTestExtension() {
......
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