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lib/clippy: improve graph node member access

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Expose all of the struct members of cmd_token, and retrieve them
dynamically rather than copying them around.  The problem with copying
them is that they can change as a result of merge(), and if there is an
existing wrapper object around it will not have its copy updated to
match.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This commit is contained in:
David Lamparter 2024-07-20 18:29:51 -07:00 committed by Donald Sharp
parent e2344206ca
commit cb9d20b712
1 changed files with 70 additions and 21 deletions
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91
lib/command_py.c
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@ -45,13 +45,6 @@ struct wrap_graph_node {
bool allowrepeat;
const char *type;
bool deprecated;
bool hidden;
const char *text;
const char *desc;
const char *varname;
long long min, max;
struct graph_node *node;
struct wrap_graph *wgraph;
size_t idx;
@ -86,11 +79,75 @@ static PyObject *refuse_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
READONLY, (char *)#name " (" #type ")" \
}
static PyMemberDef members_graph_node[] = {
member(allowrepeat, T_BOOL), member(type, T_STRING),
member(deprecated, T_BOOL), member(hidden, T_BOOL),
member(text, T_STRING), member(desc, T_STRING),
member(min, T_LONGLONG), member(max, T_LONGLONG),
member(varname, T_STRING), {},
/* clang-format off */
member(type, T_STRING),
member(idx, T_ULONG),
{},
/* clang-format on */
};
#undef member
static PyObject *graph_node_get_str(PyObject *self, void *poffset)
{
struct wrap_graph_node *wrap = (struct wrap_graph_node *)self;
void *offset = (char *)wrap->node->data + (ptrdiff_t)poffset;
const char *val = *(const char **)offset;
if (!val)
Py_RETURN_NONE;
return PyUnicode_FromString(val);
}
static PyObject *graph_node_get_bool(PyObject *self, void *poffset)
{
struct wrap_graph_node *wrap = (struct wrap_graph_node *)self;
void *offset = (char *)wrap->node->data + (ptrdiff_t)poffset;
bool val = *(bool *)offset;
return PyBool_FromLong(val);
}
static PyObject *graph_node_get_ll(PyObject *self, void *poffset)
{
struct wrap_graph_node *wrap = (struct wrap_graph_node *)self;
void *offset = (char *)wrap->node->data + (ptrdiff_t)poffset;
long long val = *(long long *)offset;
return PyLong_FromLongLong(val);
}
static PyObject *graph_node_get_u8(PyObject *self, void *poffset)
{
struct wrap_graph_node *wrap = (struct wrap_graph_node *)self;
void *offset = (char *)wrap->node->data + (ptrdiff_t)poffset;
uint8_t val = *(uint8_t *)offset;
return PyLong_FromUnsignedLong(val);
}
/* clang-format off */
#define member(name, variant) \
{ \
(char *)#name, \
graph_node_get_##variant, \
NULL, \
(char *)#name " (" #variant ")", \
(void *)offsetof(struct cmd_token, name), \
}
/* clang-format on */
static PyGetSetDef getset_graph_node[] = {
/* clang-format off */
member(attr, u8),
member(allowrepeat, bool),
member(varname_src, u8),
member(text, str),
member(desc, str),
member(min, ll),
member(max, ll),
member(varname, str),
{},
/* clang-format on */
};
#undef member
@ -200,6 +257,7 @@ static PyTypeObject typeobj_graph_node = {
.tp_new = refuse_new,
.tp_free = graph_node_wrap_free,
.tp_members = members_graph_node,
.tp_getset = getset_graph_node,
.tp_methods = methods_graph_node,
.tp_repr = repr_graph_node,
};
@ -281,15 +339,6 @@ static PyObject *graph_to_pyobj_idx(struct wrap_graph *wgraph, size_t i)
default:
wrap->type = "???";
}
wrap->deprecated = !!(tok->attr & CMD_ATTR_DEPRECATED);
wrap->hidden = !!(tok->attr & CMD_ATTR_HIDDEN);
wrap->text = tok->text;
wrap->desc = tok->desc;
wrap->varname = tok->varname;
wrap->min = tok->min;
wrap->max = tok->max;
wrap->allowrepeat = tok->allowrepeat;
}
return (PyObject *)wrap;