mirror of
https://github.com/python/cpython
synced 2024-10-07 19:25:37 +00:00
2623c8c23c
The new syntax is highly human readable while still preventing false positives. The syntax also extends Python syntax to denote "self" and positional-only parameters, allowing inspect.Signature objects to be totally accurate for all supported builtins in Python 3.4.
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
#include "Python.h"
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#include "opcode.h"
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/*[clinic input]
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module _opcode
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[clinic start generated code]*/
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/*[clinic end generated code: output=da39a3ee5e6b4b0d input=117442e66eb376e6]*/
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/*[clinic input]
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_opcode.stack_effect -> int
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opcode: int
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oparg: object = None
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/
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Compute the stack effect of the opcode.
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[clinic start generated code]*/
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PyDoc_STRVAR(_opcode_stack_effect__doc__,
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"stack_effect($module, opcode, oparg=None, /)\n"
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"--\n"
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"\n"
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"Compute the stack effect of the opcode.");
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#define _OPCODE_STACK_EFFECT_METHODDEF \
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{"stack_effect", (PyCFunction)_opcode_stack_effect, METH_VARARGS, _opcode_stack_effect__doc__},
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static int
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_opcode_stack_effect_impl(PyModuleDef *module, int opcode, PyObject *oparg);
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static PyObject *
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_opcode_stack_effect(PyModuleDef *module, PyObject *args)
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{
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PyObject *return_value = NULL;
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int opcode;
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PyObject *oparg = Py_None;
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int _return_value;
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if (!PyArg_ParseTuple(args,
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"i|O:stack_effect",
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&opcode, &oparg))
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goto exit;
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_return_value = _opcode_stack_effect_impl(module, opcode, oparg);
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if ((_return_value == -1) && PyErr_Occurred())
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goto exit;
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return_value = PyLong_FromLong((long)_return_value);
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exit:
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return return_value;
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}
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static int
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_opcode_stack_effect_impl(PyModuleDef *module, int opcode, PyObject *oparg)
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/*[clinic end generated code: output=9e1133f8d587bc67 input=2d0a9ee53c0418f5]*/
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{
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int effect;
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int oparg_int = 0;
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if (HAS_ARG(opcode)) {
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if (oparg == Py_None) {
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PyErr_SetString(PyExc_ValueError,
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"stack_effect: opcode requires oparg but oparg was not specified");
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return -1;
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}
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oparg_int = (int)PyLong_AsLong(oparg);
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if ((oparg_int == -1) && PyErr_Occurred())
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return -1;
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}
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else if (oparg != Py_None) {
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PyErr_SetString(PyExc_ValueError,
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"stack_effect: opcode does not permit oparg but oparg was specified");
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return -1;
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}
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effect = PyCompile_OpcodeStackEffect(opcode, oparg_int);
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if (effect == PY_INVALID_STACK_EFFECT) {
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PyErr_SetString(PyExc_ValueError,
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"invalid opcode or oparg");
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return -1;
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}
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return effect;
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}
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static PyMethodDef
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opcode_functions[] = {
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_OPCODE_STACK_EFFECT_METHODDEF
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{NULL, NULL, 0, NULL}
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};
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static struct PyModuleDef opcodemodule = {
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PyModuleDef_HEAD_INIT,
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"_opcode",
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"Opcode support module.",
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-1,
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opcode_functions,
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NULL,
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NULL,
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NULL,
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NULL
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};
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PyMODINIT_FUNC
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PyInit__opcode(void)
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{
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return PyModule_Create(&opcodemodule);
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}
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