along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "gdb_assert.h"
#include "charset.h"
#include "value.h"
#include "exceptions.h"
{
struct value *value = NULL; /* Initialize to appease gcc warning. */
value_object *value_obj;
- volatile struct gdb_exception except;
if (PyTuple_Size (args) != 1)
{
return NULL;
}
- TRY_CATCH (except, RETURN_MASK_ALL)
- {
- value = convert_value_from_python (PyTuple_GetItem (args, 0));
- }
- if (except.reason < 0)
+ value = convert_value_from_python (PyTuple_GetItem (args, 0));
+ if (value == NULL)
{
subtype->tp_free (value_obj);
- return PyErr_Format (except.reason == RETURN_QUIT
- ? PyExc_KeyboardInterrupt : PyExc_TypeError,
- "%s", except.message);
+ return NULL;
}
value_obj->value = value;
return value_to_value_object (res_val);
}
+/* Return "&value". */
+static PyObject *
+valpy_address (PyObject *self, PyObject *args)
+{
+ struct value *res_val = NULL; /* Initialize to appease gcc warning. */
+ volatile struct gdb_exception except;
+
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ res_val = value_addr (((value_object *) self)->value);
+ }
+ GDB_PY_HANDLE_EXCEPTION (except);
+
+ return value_to_value_object (res_val);
+}
+
static Py_ssize_t
valpy_length (PyObject *self)
{
valpy_getitem (PyObject *self, PyObject *key)
{
value_object *self_value = (value_object *) self;
- char *field;
+ char *field = NULL;
+ struct value *idx = NULL;
struct value *res_val = NULL; /* Initialize to appease gcc warning. */
- struct cleanup *old;
volatile struct gdb_exception except;
- field = python_string_to_target_string (key);
- if (field == NULL)
- return NULL;
-
- old = make_cleanup (xfree, field);
+ if (gdbpy_is_string (key))
+ {
+ field = python_string_to_host_string (key);
+ if (field == NULL)
+ return NULL;
+ }
TRY_CATCH (except, RETURN_MASK_ALL)
{
struct value *tmp = self_value->value;
- res_val = value_struct_elt (&tmp, NULL, field, 0, NULL);
+
+ if (field)
+ res_val = value_struct_elt (&tmp, NULL, field, 0, NULL);
+ else
+ {
+ /* Assume we are attempting an array access, and let the
+ value code throw an exception if the index has an invalid
+ type. */
+ struct value *idx = convert_value_from_python (key);
+ if (idx == NULL)
+ return NULL;
+
+ res_val = value_subscript (tmp, idx);
+ }
}
+ if (field)
+ xfree (field);
GDB_PY_HANDLE_EXCEPTION (except);
- do_cleanups (old);
-
return value_to_value_object (res_val);
}
VALPY_MUL,
VALPY_DIV,
VALPY_REM,
- VALPY_POW
+ VALPY_POW,
+ VALPY_LSH,
+ VALPY_RSH,
+ VALPY_BITAND,
+ VALPY_BITOR,
+ VALPY_BITXOR
};
/* If TYPE is a reference, return the target; otherwise return TYPE. */
kind of object, altogether. Because of this, we can't assume self is
a gdb.Value object and need to convert it from python as well. */
arg1 = convert_value_from_python (self);
+ if (arg1 == NULL)
+ return NULL;
+
arg2 = convert_value_from_python (other);
+ if (arg2 == NULL)
+ return NULL;
switch (opcode)
{
case VALPY_POW:
res_val = value_binop (arg1, arg2, BINOP_EXP);
break;
+ case VALPY_LSH:
+ res_val = value_binop (arg1, arg2, BINOP_LSH);
+ break;
+ case VALPY_RSH:
+ res_val = value_binop (arg1, arg2, BINOP_RSH);
+ break;
+ case VALPY_BITAND:
+ res_val = value_binop (arg1, arg2, BINOP_BITWISE_AND);
+ break;
+ case VALPY_BITOR:
+ res_val = value_binop (arg1, arg2, BINOP_BITWISE_IOR);
+ break;
+ case VALPY_BITXOR:
+ res_val = value_binop (arg1, arg2, BINOP_BITWISE_XOR);
+ break;
}
}
GDB_PY_HANDLE_EXCEPTION (except);
}
}
-/* Implements comparison operations for value objects. */
+/* Implements ~ for value objects. */
static PyObject *
-valpy_richcompare (PyObject *self, PyObject *other, int op)
+valpy_invert (PyObject *self)
{
- int result = 0;
- struct value *value_self, *value_other;
+ struct value *val = NULL;
volatile struct gdb_exception except;
- if (PyObject_TypeCheck (other, &value_object_type))
- value_other = ((value_object *) other)->value;
- else if (PyInt_Check (other))
+ TRY_CATCH (except, RETURN_MASK_ALL)
{
- LONGEST l;
+ val = value_complement (((value_object *) self)->value);
+ }
+ GDB_PY_HANDLE_EXCEPTION (except);
- l = PyInt_AsLong (other);
- if (PyErr_Occurred ())
- return NULL;
+ return value_to_value_object (val);
+}
- value_other = value_from_longest (builtin_type_pyint, l);
- }
- else if (PyFloat_Check (other))
- {
- DOUBLEST d;
+/* Implements left shift for value objects. */
+static PyObject *
+valpy_lsh (PyObject *self, PyObject *other)
+{
+ return valpy_binop (VALPY_LSH, self, other);
+}
- d = PyFloat_AsDouble (other);
- if (PyErr_Occurred ())
- return NULL;
+/* Implements right shift for value objects. */
+static PyObject *
+valpy_rsh (PyObject *self, PyObject *other)
+{
+ return valpy_binop (VALPY_RSH, self, other);
+}
- value_other = value_from_double (builtin_type_pyfloat, d);
- }
- else if (PyString_Check (other) || PyUnicode_Check (other))
- {
- char *str;
+/* Implements bitwise and for value objects. */
+static PyObject *
+valpy_and (PyObject *self, PyObject *other)
+{
+ return valpy_binop (VALPY_BITAND, self, other);
+}
- str = python_string_to_target_string (other);
- value_other = value_from_string (str);
- xfree (str);
- }
- else if (other == Py_None)
+/* Implements bitwise or for value objects. */
+static PyObject *
+valpy_or (PyObject *self, PyObject *other)
+{
+ return valpy_binop (VALPY_BITOR, self, other);
+}
+
+/* Implements bitwise xor for value objects. */
+static PyObject *
+valpy_xor (PyObject *self, PyObject *other)
+{
+ return valpy_binop (VALPY_BITXOR, self, other);
+}
+
+/* Implements comparison operations for value objects. */
+static PyObject *
+valpy_richcompare (PyObject *self, PyObject *other, int op)
+{
+ int result = 0;
+ struct value *value_other;
+ volatile struct gdb_exception except;
+
+ if (other == Py_None)
/* Comparing with None is special. From what I can tell, in Python
None is smaller than anything else. */
switch (op) {
"Invalid operation on gdb.Value.");
return NULL;
}
- else
- {
- PyErr_SetString (PyExc_NotImplementedError,
- "Operation not supported on gdb.Value of this type.");
- return NULL;
- }
TRY_CATCH (except, RETURN_MASK_ALL)
{
+ value_other = convert_value_from_python (other);
+ if (value_other == NULL)
+ return NULL;
+
switch (op) {
case Py_LT:
result = value_less (((value_object *) self)->value, value_other);
Py_RETURN_FALSE;
}
+/* Helper function to determine if a type is "int-like". */
+static int
+is_intlike (struct type *type, int ptr_ok)
+{
+ CHECK_TYPEDEF (type);
+ return (TYPE_CODE (type) == TYPE_CODE_INT
+ || TYPE_CODE (type) == TYPE_CODE_ENUM
+ || TYPE_CODE (type) == TYPE_CODE_BOOL
+ || TYPE_CODE (type) == TYPE_CODE_CHAR
+ || (ptr_ok && TYPE_CODE (type) == TYPE_CODE_PTR));
+}
+
+/* Implements conversion to int. */
+static PyObject *
+valpy_int (PyObject *self)
+{
+ struct value *value = ((value_object *) self)->value;
+ struct type *type = value_type (value);
+ LONGEST l = 0;
+ volatile struct gdb_exception except;
+
+ CHECK_TYPEDEF (type);
+ if (!is_intlike (type, 0))
+ {
+ PyErr_SetString (PyExc_RuntimeError, "cannot convert value to int");
+ return NULL;
+ }
+
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ l = value_as_long (value);
+ }
+ GDB_PY_HANDLE_EXCEPTION (except);
+
+ return PyInt_FromLong (l);
+}
+
+/* Implements conversion to long. */
+static PyObject *
+valpy_long (PyObject *self)
+{
+ struct value *value = ((value_object *) self)->value;
+ struct type *type = value_type (value);
+ LONGEST l = 0;
+ volatile struct gdb_exception except;
+
+ if (!is_intlike (type, 1))
+ {
+ PyErr_SetString (PyExc_RuntimeError, "cannot convert value to long");
+ return NULL;
+ }
+
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ l = value_as_long (value);
+ }
+ GDB_PY_HANDLE_EXCEPTION (except);
+
+ return PyLong_FromLong (l);
+}
+
+/* Implements conversion to float. */
+static PyObject *
+valpy_float (PyObject *self)
+{
+ struct value *value = ((value_object *) self)->value;
+ struct type *type = value_type (value);
+ double d = 0;
+ volatile struct gdb_exception except;
+
+ CHECK_TYPEDEF (type);
+ if (TYPE_CODE (type) != TYPE_CODE_FLT)
+ {
+ PyErr_SetString (PyExc_RuntimeError, "cannot convert value to float");
+ return NULL;
+ }
+
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ d = value_as_double (value);
+ }
+ GDB_PY_HANDLE_EXCEPTION (except);
+
+ return PyFloat_FromDouble (d);
+}
+
/* Returns an object for a value which is released from the all_values chain,
so its lifetime is not bound to the execution of a command. */
PyObject *
}
/* Try to convert a Python value to a gdb value. If the value cannot
- be converted, throw a gdb exception. */
+ be converted, set a Python exception and return NULL. */
struct value *
convert_value_from_python (PyObject *obj)
struct value *value = NULL; /* -Wall */
PyObject *target_str, *unicode_str;
struct cleanup *old;
+ volatile struct gdb_exception except;
+ int cmp;
- if (! obj)
- error (_("Internal error while converting Python value."));
+ gdb_assert (obj != NULL);
- if (PyBool_Check (obj))
- value = value_from_longest (builtin_type_pybool, obj == Py_True);
- else if (PyInt_Check (obj))
- value = value_from_longest (builtin_type_pyint, PyInt_AsLong (obj));
- else if (PyLong_Check (obj))
- {
- LONGEST l = PyLong_AsLongLong (obj);
- if (! PyErr_Occurred ())
- value = value_from_longest (builtin_type_pylong, l);
- }
- else if (PyFloat_Check (obj))
- {
- double d = PyFloat_AsDouble (obj);
- if (! PyErr_Occurred ())
- value = value_from_double (builtin_type_pyfloat, d);
- }
- else if (PyString_Check (obj) || PyUnicode_Check (obj))
+ TRY_CATCH (except, RETURN_MASK_ALL)
{
- char *s;
+ if (PyBool_Check (obj))
+ {
+ cmp = PyObject_IsTrue (obj);
+ if (cmp >= 0)
+ value = value_from_longest (builtin_type_pybool, cmp);
+ }
+ else if (PyInt_Check (obj))
+ {
+ long l = PyInt_AsLong (obj);
- s = python_string_to_target_string (obj);
- if (s == NULL)
- return NULL;
+ if (! PyErr_Occurred ())
+ value = value_from_longest (builtin_type_pyint, l);
+ }
+ else if (PyLong_Check (obj))
+ {
+ LONGEST l = PyLong_AsLongLong (obj);
- old = make_cleanup (xfree, s);
- value = value_from_string (s);
- do_cleanups (old);
- }
- else if (PyObject_TypeCheck (obj, &value_object_type))
- value = ((value_object *) obj)->value;
- else
- error (_("Could not convert Python object: %s"),
- PyString_AsString (PyObject_Str (obj)));
+ if (! PyErr_Occurred ())
+ value = value_from_longest (builtin_type_pylong, l);
+ }
+ else if (PyFloat_Check (obj))
+ {
+ double d = PyFloat_AsDouble (obj);
- if (PyErr_Occurred ())
- error (_("Error converting Python value."));
+ if (! PyErr_Occurred ())
+ value = value_from_double (builtin_type_pyfloat, d);
+ }
+ else if (gdbpy_is_string (obj))
+ {
+ char *s;
+
+ s = python_string_to_target_string (obj);
+ if (s != NULL)
+ {
+ old = make_cleanup (xfree, s);
+ value = value_from_string (s);
+ do_cleanups (old);
+ }
+ }
+ else if (PyObject_TypeCheck (obj, &value_object_type))
+ value = ((value_object *) obj)->value;
+ else
+ PyErr_Format (PyExc_TypeError, _("Could not convert Python object: %s"),
+ PyString_AsString (PyObject_Str (obj)));
+ }
+ if (except.reason < 0)
+ {
+ PyErr_Format (except.reason == RETURN_QUIT
+ ? PyExc_KeyboardInterrupt : PyExc_RuntimeError,
+ "%s", except.message);
+ return NULL;
+ }
return value;
}
/* Returns value object in the ARGth position in GDB's history. */
PyObject *
-gdbpy_get_value_from_history (PyObject *self, PyObject *args)
+gdbpy_history (PyObject *self, PyObject *args)
{
int i;
struct value *res_val = NULL; /* Initialize to appease gcc warning. */
void
gdbpy_initialize_values (void)
{
- value_object_type.tp_new = valpy_new;
if (PyType_Ready (&value_object_type) < 0)
return;
}
static PyMethodDef value_object_methods[] = {
+ { "address", valpy_address, METH_NOARGS, "Return the address of the value." },
{ "dereference", valpy_dereference, METH_NOARGS, "Dereferences the value." },
{NULL} /* Sentinel */
};
valpy_negative, /* nb_negative */
valpy_positive, /* nb_positive */
valpy_absolute, /* nb_absolute */
- valpy_nonzero /* nb_nonzero */
+ valpy_nonzero, /* nb_nonzero */
+ valpy_invert, /* nb_invert */
+ valpy_lsh, /* nb_lshift */
+ valpy_rsh, /* nb_rshift */
+ valpy_and, /* nb_and */
+ valpy_xor, /* nb_xor */
+ valpy_or, /* nb_or */
+ NULL, /* nb_coerce */
+ valpy_int, /* nb_int */
+ valpy_long, /* nb_long */
+ valpy_float, /* nb_float */
+ NULL, /* nb_oct */
+ NULL /* nb_hex */
};
static PyMappingMethods value_object_as_mapping = {
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
- value_object_methods /* tp_methods */
+ value_object_methods, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ valpy_new /* tp_new */
};
#endif /* HAVE_PYTHON */
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