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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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1396 lines
44 KiB
C
1396 lines
44 KiB
C
#ifndef Py_ABSTRACTOBJECT_H
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#define Py_ABSTRACTOBJECT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef PY_SSIZE_T_CLEAN
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#define PyObject_CallFunction _PyObject_CallFunction_SizeT
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#define PyObject_CallMethod _PyObject_CallMethod_SizeT
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#endif
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/* Abstract Object Interface (many thanks to Jim Fulton) */
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/*
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PROPOSAL: A Generic Python Object Interface for Python C Modules
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Problem
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Python modules written in C that must access Python objects must do
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so through routines whose interfaces are described by a set of
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include files. Unfortunately, these routines vary according to the
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object accessed. To use these routines, the C programmer must check
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the type of the object being used and must call a routine based on
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the object type. For example, to access an element of a sequence,
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the programmer must determine whether the sequence is a list or a
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tuple:
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if(is_tupleobject(o))
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e=gettupleitem(o,i)
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else if(is_listitem(o))
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e=getlistitem(o,i)
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If the programmer wants to get an item from another type of object
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that provides sequence behavior, there is no clear way to do it
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correctly.
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The persistent programmer may peruse object.h and find that the
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_typeobject structure provides a means of invoking up to (currently
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about) 41 special operators. So, for example, a routine can get an
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item from any object that provides sequence behavior. However, to
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use this mechanism, the programmer must make their code dependent on
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the current Python implementation.
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Also, certain semantics, especially memory management semantics, may
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differ by the type of object being used. Unfortunately, these
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semantics are not clearly described in the current include files.
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An abstract interface providing more consistent semantics is needed.
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Proposal
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I propose the creation of a standard interface (with an associated
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library of routines and/or macros) for generically obtaining the
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services of Python objects. This proposal can be viewed as one
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components of a Python C interface consisting of several components.
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From the viewpoint of C access to Python services, we have (as
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suggested by Guido in off-line discussions):
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- "Very high level layer": two or three functions that let you exec or
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eval arbitrary Python code given as a string in a module whose name is
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given, passing C values in and getting C values out using
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mkvalue/getargs style format strings. This does not require the user
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to declare any variables of type "PyObject *". This should be enough
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to write a simple application that gets Python code from the user,
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execs it, and returns the output or errors. (Error handling must also
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be part of this API.)
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- "Abstract objects layer": which is the subject of this proposal.
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It has many functions operating on objects, and lest you do many
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things from C that you can also write in Python, without going
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through the Python parser.
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- "Concrete objects layer": This is the public type-dependent
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interface provided by the standard built-in types, such as floats,
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strings, and lists. This interface exists and is currently
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documented by the collection of include files provided with the
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Python distributions.
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From the point of view of Python accessing services provided by C
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modules:
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- "Python module interface": this interface consist of the basic
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routines used to define modules and their members. Most of the
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current extensions-writing guide deals with this interface.
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- "Built-in object interface": this is the interface that a new
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built-in type must provide and the mechanisms and rules that a
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developer of a new built-in type must use and follow.
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This proposal is a "first-cut" that is intended to spur
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discussion. See especially the lists of notes.
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The Python C object interface will provide four protocols: object,
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numeric, sequence, and mapping. Each protocol consists of a
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collection of related operations. If an operation that is not
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provided by a particular type is invoked, then a standard exception,
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NotImplementedError is raised with a operation name as an argument.
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In addition, for convenience this interface defines a set of
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constructors for building objects of built-in types. This is needed
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so new objects can be returned from C functions that otherwise treat
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objects generically.
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Memory Management
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For all of the functions described in this proposal, if a function
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retains a reference to a Python object passed as an argument, then the
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function will increase the reference count of the object. It is
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unnecessary for the caller to increase the reference count of an
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argument in anticipation of the object's retention.
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All Python objects returned from functions should be treated as new
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objects. Functions that return objects assume that the caller will
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retain a reference and the reference count of the object has already
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been incremented to account for this fact. A caller that does not
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retain a reference to an object that is returned from a function
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must decrement the reference count of the object (using
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DECREF(object)) to prevent memory leaks.
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Note that the behavior mentioned here is different from the current
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behavior for some objects (e.g. lists and tuples) when certain
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type-specific routines are called directly (e.g. setlistitem). The
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proposed abstraction layer will provide a consistent memory
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management interface, correcting for inconsistent behavior for some
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built-in types.
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Protocols
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/
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/* Object Protocol: */
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/* Implemented elsewhere:
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int PyObject_Print(PyObject *o, FILE *fp, int flags);
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Print an object, o, on file, fp. Returns -1 on
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error. The flags argument is used to enable certain printing
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options. The only option currently supported is Py_Print_RAW.
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(What should be said about Py_Print_RAW?)
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*/
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/* Implemented elsewhere:
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int PyObject_HasAttrString(PyObject *o, char *attr_name);
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Returns 1 if o has the attribute attr_name, and 0 otherwise.
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This is equivalent to the Python expression:
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hasattr(o,attr_name).
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This function always succeeds.
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*/
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/* Implemented elsewhere:
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PyObject* PyObject_GetAttrString(PyObject *o, char *attr_name);
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Retrieve an attributed named attr_name form object o.
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Returns the attribute value on success, or NULL on failure.
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This is the equivalent of the Python expression: o.attr_name.
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*/
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/* Implemented elsewhere:
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int PyObject_HasAttr(PyObject *o, PyObject *attr_name);
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Returns 1 if o has the attribute attr_name, and 0 otherwise.
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This is equivalent to the Python expression:
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hasattr(o,attr_name).
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This function always succeeds.
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*/
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/* Implemented elsewhere:
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PyObject* PyObject_GetAttr(PyObject *o, PyObject *attr_name);
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Retrieve an attributed named attr_name form object o.
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Returns the attribute value on success, or NULL on failure.
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This is the equivalent of the Python expression: o.attr_name.
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*/
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/* Implemented elsewhere:
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int PyObject_SetAttrString(PyObject *o, char *attr_name, PyObject *v);
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Set the value of the attribute named attr_name, for object o,
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to the value, v. Returns -1 on failure. This is
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the equivalent of the Python statement: o.attr_name=v.
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*/
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/* Implemented elsewhere:
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int PyObject_SetAttr(PyObject *o, PyObject *attr_name, PyObject *v);
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Set the value of the attribute named attr_name, for object o,
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to the value, v. Returns -1 on failure. This is
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the equivalent of the Python statement: o.attr_name=v.
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*/
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/* implemented as a macro:
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int PyObject_DelAttrString(PyObject *o, char *attr_name);
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Delete attribute named attr_name, for object o. Returns
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-1 on failure. This is the equivalent of the Python
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statement: del o.attr_name.
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*/
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#define PyObject_DelAttrString(O,A) PyObject_SetAttrString((O),(A),NULL)
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/* implemented as a macro:
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int PyObject_DelAttr(PyObject *o, PyObject *attr_name);
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Delete attribute named attr_name, for object o. Returns -1
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on failure. This is the equivalent of the Python
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statement: del o.attr_name.
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*/
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#define PyObject_DelAttr(O,A) PyObject_SetAttr((O),(A),NULL)
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PyAPI_FUNC(int) PyObject_Cmp(PyObject *o1, PyObject *o2, int *result);
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/*
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Compare the values of o1 and o2 using a routine provided by
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o1, if one exists, otherwise with a routine provided by o2.
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The result of the comparison is returned in result. Returns
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-1 on failure. This is the equivalent of the Python
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statement: result=cmp(o1,o2).
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*/
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/* Implemented elsewhere:
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int PyObject_Compare(PyObject *o1, PyObject *o2);
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Compare the values of o1 and o2 using a routine provided by
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o1, if one exists, otherwise with a routine provided by o2.
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Returns the result of the comparison on success. On error,
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the value returned is undefined. This is equivalent to the
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Python expression: cmp(o1,o2).
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*/
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/* Implemented elsewhere:
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PyObject *PyObject_Repr(PyObject *o);
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Compute the string representation of object, o. Returns the
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string representation on success, NULL on failure. This is
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the equivalent of the Python expression: repr(o).
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Called by the repr() built-in function and by reverse quotes.
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*/
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/* Implemented elsewhere:
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PyObject *PyObject_Str(PyObject *o);
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Compute the string representation of object, o. Returns the
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string representation on success, NULL on failure. This is
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the equivalent of the Python expression: str(o).)
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Called by the str() built-in function and by the print
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statement.
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*/
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/* Implemented elsewhere:
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PyObject *PyObject_Unicode(PyObject *o);
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Compute the unicode representation of object, o. Returns the
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unicode representation on success, NULL on failure. This is
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the equivalent of the Python expression: unistr(o).)
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Called by the unistr() built-in function.
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*/
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/* Declared elsewhere
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PyAPI_FUNC(int) PyCallable_Check(PyObject *o);
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Determine if the object, o, is callable. Return 1 if the
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object is callable and 0 otherwise.
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This function always succeeds.
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*/
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PyAPI_FUNC(PyObject *) PyObject_Call(PyObject *callable_object,
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PyObject *args, PyObject *kw);
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/*
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Call a callable Python object, callable_object, with
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arguments and keywords arguments. The 'args' argument can not be
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NULL, but the 'kw' argument can be NULL.
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*/
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PyAPI_FUNC(PyObject *) PyObject_CallObject(PyObject *callable_object,
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PyObject *args);
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/*
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Call a callable Python object, callable_object, with
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arguments given by the tuple, args. If no arguments are
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needed, then args may be NULL. Returns the result of the
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call on success, or NULL on failure. This is the equivalent
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of the Python expression: apply(o,args).
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*/
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PyAPI_FUNC(PyObject *) PyObject_CallFunction(PyObject *callable_object,
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char *format, ...);
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/*
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Call a callable Python object, callable_object, with a
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variable number of C arguments. The C arguments are described
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using a mkvalue-style format string. The format may be NULL,
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indicating that no arguments are provided. Returns the
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result of the call on success, or NULL on failure. This is
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the equivalent of the Python expression: apply(o,args).
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*/
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PyAPI_FUNC(PyObject *) PyObject_CallMethod(PyObject *o, char *m,
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char *format, ...);
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/*
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Call the method named m of object o with a variable number of
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C arguments. The C arguments are described by a mkvalue
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format string. The format may be NULL, indicating that no
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arguments are provided. Returns the result of the call on
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success, or NULL on failure. This is the equivalent of the
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Python expression: o.method(args).
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*/
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PyAPI_FUNC(PyObject *) _PyObject_CallFunction_SizeT(PyObject *callable,
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char *format, ...);
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PyAPI_FUNC(PyObject *) _PyObject_CallMethod_SizeT(PyObject *o,
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char *name,
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char *format, ...);
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PyAPI_FUNC(PyObject *) PyObject_CallFunctionObjArgs(PyObject *callable,
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...);
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/*
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Call a callable Python object, callable_object, with a
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variable number of C arguments. The C arguments are provided
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as PyObject * values, terminated by a NULL. Returns the
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result of the call on success, or NULL on failure. This is
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the equivalent of the Python expression: apply(o,args).
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*/
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PyAPI_FUNC(PyObject *) PyObject_CallMethodObjArgs(PyObject *o,
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PyObject *m, ...);
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/*
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Call the method named m of object o with a variable number of
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C arguments. The C arguments are provided as PyObject *
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values, terminated by NULL. Returns the result of the call
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on success, or NULL on failure. This is the equivalent of
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the Python expression: o.method(args).
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*/
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/* Implemented elsewhere:
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long PyObject_Hash(PyObject *o);
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Compute and return the hash, hash_value, of an object, o. On
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failure, return -1. This is the equivalent of the Python
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expression: hash(o).
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*/
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/* Implemented elsewhere:
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int PyObject_IsTrue(PyObject *o);
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Returns 1 if the object, o, is considered to be true, 0 if o is
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considered to be false and -1 on failure. This is equivalent to the
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Python expression: not not o
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*/
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/* Implemented elsewhere:
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int PyObject_Not(PyObject *o);
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Returns 0 if the object, o, is considered to be true, 1 if o is
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considered to be false and -1 on failure. This is equivalent to the
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Python expression: not o
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*/
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PyAPI_FUNC(PyObject *) PyObject_Type(PyObject *o);
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/*
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On success, returns a type object corresponding to the object
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type of object o. On failure, returns NULL. This is
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equivalent to the Python expression: type(o).
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*/
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PyAPI_FUNC(Py_ssize_t) PyObject_Size(PyObject *o);
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/*
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Return the size of object o. If the object, o, provides
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both sequence and mapping protocols, the sequence size is
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returned. On error, -1 is returned. This is the equivalent
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to the Python expression: len(o).
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*/
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/* For DLL compatibility */
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#undef PyObject_Length
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PyAPI_FUNC(Py_ssize_t) PyObject_Length(PyObject *o);
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#define PyObject_Length PyObject_Size
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PyAPI_FUNC(Py_ssize_t) _PyObject_LengthHint(PyObject *o, Py_ssize_t);
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/*
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Guess the size of object o using len(o) or o.__length_hint__().
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If neither of those return a non-negative value, then return the
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default value. If one of the calls fails, this function returns -1.
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*/
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PyAPI_FUNC(PyObject *) PyObject_GetItem(PyObject *o, PyObject *key);
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/*
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Return element of o corresponding to the object, key, or NULL
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on failure. This is the equivalent of the Python expression:
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o[key].
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*/
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PyAPI_FUNC(int) PyObject_SetItem(PyObject *o, PyObject *key, PyObject *v);
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/*
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Map the object, key, to the value, v. Returns
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-1 on failure. This is the equivalent of the Python
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statement: o[key]=v.
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*/
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PyAPI_FUNC(int) PyObject_DelItemString(PyObject *o, char *key);
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/*
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Remove the mapping for object, key, from the object *o.
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Returns -1 on failure. This is equivalent to
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the Python statement: del o[key].
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*/
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PyAPI_FUNC(int) PyObject_DelItem(PyObject *o, PyObject *key);
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/*
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Delete the mapping for key from *o. Returns -1 on failure.
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This is the equivalent of the Python statement: del o[key].
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*/
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PyAPI_FUNC(int) PyObject_AsCharBuffer(PyObject *obj,
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const char **buffer,
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Py_ssize_t *buffer_len);
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/*
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Takes an arbitrary object which must support the (character,
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single segment) buffer interface and returns a pointer to a
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read-only memory location useable as character based input
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for subsequent processing.
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0 is returned on success. buffer and buffer_len are only
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set in case no error occurs. Otherwise, -1 is returned and
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an exception set.
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*/
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PyAPI_FUNC(int) PyObject_CheckReadBuffer(PyObject *obj);
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/*
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Checks whether an arbitrary object supports the (character,
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single segment) buffer interface. Returns 1 on success, 0
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on failure.
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*/
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PyAPI_FUNC(int) PyObject_AsReadBuffer(PyObject *obj,
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const void **buffer,
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Py_ssize_t *buffer_len);
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/*
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Same as PyObject_AsCharBuffer() except that this API expects
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(readable, single segment) buffer interface and returns a
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pointer to a read-only memory location which can contain
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arbitrary data.
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0 is returned on success. buffer and buffer_len are only
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set in case no error occurs. Otherwise, -1 is returned and
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an exception set.
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*/
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PyAPI_FUNC(int) PyObject_AsWriteBuffer(PyObject *obj,
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void **buffer,
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Py_ssize_t *buffer_len);
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/*
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Takes an arbitrary object which must support the (writeable,
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single segment) buffer interface and returns a pointer to a
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writeable memory location in buffer of size buffer_len.
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0 is returned on success. buffer and buffer_len are only
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set in case no error occurs. Otherwise, -1 is returned and
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an exception set.
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*/
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/* new buffer API */
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#define PyObject_CheckBuffer(obj) \
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(((obj)->ob_type->tp_as_buffer != NULL) && \
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(PyType_HasFeature((obj)->ob_type, Py_TPFLAGS_HAVE_NEWBUFFER)) && \
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((obj)->ob_type->tp_as_buffer->bf_getbuffer != NULL))
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/* Return 1 if the getbuffer function is available, otherwise
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return 0 */
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PyAPI_FUNC(int) PyObject_GetBuffer(PyObject *obj, Py_buffer *view,
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int flags);
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/* This is a C-API version of the getbuffer function call. It checks
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to make sure object has the required function pointer and issues the
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call. Returns -1 and raises an error on failure and returns 0 on
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success
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*/
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PyAPI_FUNC(void *) PyBuffer_GetPointer(Py_buffer *view, Py_ssize_t *indices);
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|
|
/* 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 */
|