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// Copyright (c) Meta Platforms, Inc. and affiliates.
// SPDX-License-Identifier: LGPL-2.1-or-later
#include "drgnpy.h"
#include "../util.h"
PyObject *SourceLocation_type;
int add_SourceLocation(PyObject *m)
{
_cleanup_pydecref_ PyObject *globals = PyDict_New();
if (!globals)
return -1;
{
_cleanup_pydecref_ PyObject *module_name =
PyUnicode_FromString("_drgn");
if (!module_name)
return -1;
if (PyDict_SetItemString(globals, "__name__", module_name))
return -1;
}
_cleanup_pydecref_ PyObject *res = PyRun_String(
"from typing import Callable, NamedTuple, Optional\n"
"\n"
"\n"
"class SourceLocation(\n"
" NamedTuple(\n"
" 'SourceLocationBase', [('filename', str), ('line', int), ('column', int)]\n"
" )\n"
"):\n"
" def __new__(\n"
" cls,\n"
" filename: str,\n"
" line: int,\n"
" column: int,\n"
" name: Callable[[], Optional[str]] = lambda: None,\n"
" ) -> 'Foo':\n"
" ret = super().__new__(cls, filename, line, column)\n"
" ret.name = name\n"
" return ret\n"
"\n"
" # Keep this in sync with drgn_format_stack_frame_source_impl().\n"
" def __str__(self) -> str:\n"
" name = self.name()\n"
" if name is None:\n"
" name = '\?\?\?'\n"
" if self.filename:\n"
" if self.column:\n"
" return f'{name} at {self.filename}:{self.line}:{self.column}'\n"
" else:\n"
" return f'{name} at {self.filename}:{self.line}'\n"
" else:\n"
" return f'{name} at \?\?:\?'\n"
, Py_file_input, globals, globals);
if (!res)
return -1;
SourceLocation_type = PyDict_GetItemString(globals, "SourceLocation");
return PyModule_AddObjectRef(m, "SourceLocation", SourceLocation_type);
}
PyObject *SourceLocationList_wrap(struct drgn_source_location_list *locs)
{
SourceLocationList *ret = call_tp_alloc(SourceLocationList);
if (!ret)
return NULL;
Py_INCREF(container_of(drgn_source_location_list_program(locs), Program,
prog));
ret->locs = locs;
return (PyObject *)ret;
}
static void SourceLocationList_dealloc(SourceLocationList *self)
{
PyObject_GC_UnTrack(self);
if (self->locs) {
struct drgn_program *prog =
drgn_source_location_list_program(self->locs);
drgn_source_location_list_destroy(self->locs);
Py_DECREF(container_of(prog, Program, prog));
}
Py_TYPE(self)->tp_free((PyObject *)self);
}
static int SourceLocationList_traverse(SourceLocationList *self,
visitproc visit, void *arg)
{
if (self->locs) {
Py_VISIT(container_of(drgn_source_location_list_program(self->locs),
Program, prog));
}
return 0;
}
static Program *SourceLocationList_get_prog(SourceLocationList *self, void *arg)
{
Program *prog =
container_of(drgn_source_location_list_program(self->locs),
Program, prog);
Py_INCREF(prog);
return prog;
}
static PyObject *SourceLocationList_str(SourceLocationList *self)
{
struct drgn_error *err;
_cleanup_free_ char *str = NULL;
err = drgn_format_source_location_list(self->locs, &str);
if (err)
return set_drgn_error(err);
return PyUnicode_FromString(str);
}
static Py_ssize_t SourceLocationList_length(SourceLocationList *self)
{
return drgn_source_location_list_length(self->locs);
}
static PyObject *SourceLocationList_name(PyObject *self)
{
SourceLocationList *locs =
(SourceLocationList *)PyTuple_GET_ITEM(self, 0);
Py_ssize_t i = PyLong_AsSize_t(PyTuple_GET_ITEM(self, 1));
if (i == -1 && PyErr_Occurred())
return NULL;
_cleanup_free_ char *str = NULL;
struct drgn_error *err = drgn_source_location_list_name_at(locs->locs,
i, &str);
if (err)
return set_drgn_error(err);
if (!str)
Py_RETURN_NONE;
return PyUnicode_FromString(str);
}
static PyObject *SourceLocationList_item(SourceLocationList *self, Py_ssize_t i)
{
if (i < 0 || i >= drgn_source_location_list_length(self->locs)) {
PyErr_SetString(PyExc_IndexError,
"source location list index out of range");
return NULL;
}
int line, column;
const char *filename = drgn_source_location_list_source_at(self->locs,
i, &line,
&column);
if (!filename) {
filename = "";
line = column = 0;
}
static PyMethodDef meth = {
.ml_name = "name",
.ml_meth = (PyCFunction)SourceLocationList_name,
.ml_flags = METH_NOARGS,
};
_cleanup_pydecref_ PyObject *name_arg = Py_BuildValue("On", self, i);
if (!name_arg)
return NULL;
return PyObject_CallFunction(SourceLocation_type, "siiN", filename,
line, column,
PyCFunction_New(&meth, name_arg));
}
static PyMethodDef SourceLocationList_methods[] = {
{"_repr_pretty_", (PyCFunction)repr_pretty_from_str,
METH_VARARGS | METH_KEYWORDS},
{},
};
static PySequenceMethods SourceLocationList_as_sequence = {
.sq_length = (lenfunc)SourceLocationList_length,
.sq_item = (ssizeargfunc)SourceLocationList_item,
};
static PyGetSetDef SourceLocationList_getset[] = {
{"prog", (getter)SourceLocationList_get_prog, NULL,
drgn_SourceLocationList_prog_DOC},
{},
};
PyTypeObject SourceLocationList_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "_drgn.SourceLocationList",
.tp_basicsize = sizeof(SourceLocationList),
.tp_dealloc = (destructor)SourceLocationList_dealloc,
.tp_as_sequence = &SourceLocationList_as_sequence,
.tp_str = (reprfunc)SourceLocationList_str,
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
.tp_doc = drgn_SourceLocationList_DOC,
.tp_traverse = (traverseproc)SourceLocationList_traverse,
.tp_methods = SourceLocationList_methods,
.tp_getset = SourceLocationList_getset,
};
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