static enum string_repr_result
print_string_repr (PyObject *printer, const char *hint,
struct ui_file *stream, int recurse,
const struct value_print_options *options,
const struct language_defn *language,
struct gdbarch *gdbarch)
{
struct value *replacement = NULL;
enum string_repr_result result = string_repr_ok;
gdbpy_ref<> py_str (pretty_print_one_value (printer, &replacement));
if (py_str != NULL)
{
if (py_str == Py_None)
result = string_repr_none;
else if (gdbpy_is_lazy_string (py_str.get ()))
{
CORE_ADDR addr;
long length;
struct type *type;
gdb::unique_xmalloc_ptr<char> encoding;
struct value_print_options local_opts = *options;
gdbpy_extract_lazy_string (py_str.get (), &addr, &type,
&length, &encoding);
local_opts.addressprint = 0;
val_print_string (type, encoding.get (), addr, (int) length,
stream, &local_opts);
}
else
{
gdbpy_ref<> string
(python_string_to_target_python_string (py_str.get ()));
if (string != NULL)
{
char *output;
long length;
struct type *type;
#ifdef IS_PY3K
output = PyBytes_AS_STRING (string.get ());
length = PyBytes_GET_SIZE (string.get ());
#else
output = PyString_AsString (string.get ());
length = PyString_Size (string.get ());
#endif
type = builtin_type (gdbarch)->builtin_char;
if (hint && !strcmp (hint, "string"))
LA_PRINT_STRING (stream, type, (gdb_byte *) output,
length, NULL, 0, options);
else
fputs_filtered (output, stream);
}
else
{
result = string_repr_error;
print_stack_unless_memory_error (stream);
}
}
}
else if (replacement)
{
struct value_print_options opts = *options;
opts.addressprint = 0;
common_val_print (replacement, stream, recurse, &opts, language);
}
else
{
result = string_repr_error;
print_stack_unless_memory_error (stream);
}
return result;
}
/* Helper for gdbpy_apply_val_pretty_printer that formats children of the
printer, if any exist. If is_py_none is true, then nothing has
been printed by to_string, and format output accordingly. */
static void
print_children (PyObject *printer, const char *hint,
struct ui_file *stream, int recurse,
const struct value_print_options *options,
const struct language_defn *language,
int is_py_none)
{
int is_map, is_array, done_flag, pretty;
unsigned int i;
if (! PyObject_HasAttr (printer, gdbpy_children_cst))
return;
/* If we are printing a map or an array, we want some special
formatting. */
is_map = hint && ! strcmp (hint, "map");
is_array = hint && ! strcmp (hint, "array");
gdbpy_ref<> children (PyObject_CallMethodObjArgs (printer, gdbpy_children_cst,
NULL));
if (children == NULL)
{
print_stack_unless_memory_error (stream);
return;
}
gdbpy_ref<> iter (PyObject_GetIter (children.get ()));
if (iter == NULL)
{
print_stack_unless_memory_error (stream);
return;
}
/* Use the prettyformat_arrays option if we are printing an array,
and the pretty option otherwise. */
if (is_array)
pretty = options->prettyformat_arrays;
else
{
if (options->prettyformat == Val_prettyformat)
pretty = 1;
else
pretty = options->prettyformat_structs;
}
/* Manufacture a dummy Python frame to work around Python 2.4 bug,
where it insists on having a non-NULL tstate->frame when
a generator is called. */
#ifndef IS_PY3K
dummy_python_frame frame;
if (frame.failed ())
{
gdbpy_print_stack ();
return;
}
#endif
done_flag = 0;
for (i = 0; i < options->print_max; ++i)
{
PyObject *py_v;
const char *name;
gdbpy_ref<> item (PyIter_Next (iter.get ()));
if (item == NULL)
{
if (PyErr_Occurred ())
print_stack_unless_memory_error (stream);
/* Set a flag so we can know whether we printed all the
available elements. */
else
done_flag = 1;
break;
}
if (! PyTuple_Check (item.get ()) || PyTuple_Size (item.get ()) != 2)
{
PyErr_SetString (PyExc_TypeError,
_("Result of children iterator not a tuple"
" of two elements."));
gdbpy_print_stack ();
continue;
}
if (! PyArg_ParseTuple (item.get (), "sO", &name, &py_v))
{
/* The user won't necessarily get a stack trace here, so provide
more context. */
if (gdbpy_print_python_errors_p ())
fprintf_unfiltered (gdb_stderr,
_("Bad result from children iterator.\n"));
gdbpy_print_stack ();
continue;
}
/* Print initial "{". For other elements, there are three
cases:
1. Maps. Print a "," after each value element.
2. Arrays. Always print a ",".
3. Other. Always print a ",". */
if (i == 0)
{
if (is_py_none)
fputs_filtered ("{", stream);
else
fputs_filtered (" = {", stream);
}
else if (! is_map || i % 2 == 0)
fputs_filtered (pretty ? "," : ", ", stream);
/* In summary mode, we just want to print "= {...}" if there is
a value. */
if (options->summary)
{
/* This increment tricks the post-loop logic to print what
we want. */
++i;
/* Likewise. */
pretty = 0;
break;
}
if (! is_map || i % 2 == 0)
{
if (pretty)
{
fputs_filtered ("\n", stream);
print_spaces_filtered (2 + 2 * recurse, stream);
}
else
wrap_here (n_spaces (2 + 2 *recurse));
}
if (is_map && i % 2 == 0)
fputs_filtered ("[", stream);
else if (is_array)
{
/* We print the index, not whatever the child method
returned as the name. */
if (options->print_array_indexes)
fprintf_filtered (stream, "[%d] = ", i);
}
else if (! is_map)
{
fputs_filtered (name, stream);
fputs_filtered (" = ", stream);
}
if (gdbpy_is_lazy_string (py_v))
{
CORE_ADDR addr;
struct type *type;
long length;
gdb::unique_xmalloc_ptr<char> encoding;
struct value_print_options local_opts = *options;
gdbpy_extract_lazy_string (py_v, &addr, &type, &length, &encoding);
local_opts.addressprint = 0;
val_print_string (type, encoding.get (), addr, (int) length, stream,
&local_opts);
}
else if (gdbpy_is_string (py_v))
{
gdb::unique_xmalloc_ptr<char> output;
output = python_string_to_host_string (py_v);
if (!output)
gdbpy_print_stack ();
else
fputs_filtered (output.get (), stream);
}
else
{
struct value *value = convert_value_from_python (py_v);
if (value == NULL)
{
gdbpy_print_stack ();
error (_("Error while executing Python code."));
}
else
common_val_print (value, stream, recurse + 1, options, language);
}
if (is_map && i % 2 == 0)
fputs_filtered ("] = ", stream);
}
if (i)
{
if (!done_flag)
{
if (pretty)
{
fputs_filtered ("\n", stream);
print_spaces_filtered (2 + 2 * recurse, stream);
}
fputs_filtered ("...", stream);
}
if (pretty)
{
fputs_filtered ("\n", stream);
print_spaces_filtered (2 * recurse, stream);
}
fputs_filtered ("}", stream);
}
}
static enum string_repr_result
print_string_repr (PyObject *printer, const char *hint,
struct ui_file *stream, int recurse,
const struct value_print_options *options,
const struct language_defn *language,
struct gdbarch *gdbarch)
{
struct value *replacement = NULL;
PyObject *py_str = NULL;
enum string_repr_result result = string_repr_ok;
py_str = pretty_print_one_value (printer, &replacement);
if (py_str)
{
struct cleanup *cleanup = make_cleanup_py_decref (py_str);
if (py_str == Py_None)
result = string_repr_none;
else if (gdbpy_is_lazy_string (py_str))
{
CORE_ADDR addr;
long length;
struct type *type;
char *encoding = NULL;
struct value_print_options local_opts = *options;
make_cleanup (free_current_contents, &encoding);
gdbpy_extract_lazy_string (py_str, &addr, &type,
&length, &encoding);
local_opts.addressprint = 0;
val_print_string (type, encoding, addr, (int) length,
stream, &local_opts);
}
else
{
PyObject *string;
string = python_string_to_target_python_string (py_str);
if (string)
{
char *output;
long length;
struct type *type;
make_cleanup_py_decref (string);
#ifdef IS_PY3K
output = PyBytes_AS_STRING (string);
length = PyBytes_GET_SIZE (string);
#else
output = PyString_AsString (string);
length = PyString_Size (string);
#endif
type = builtin_type (gdbarch)->builtin_char;
if (hint && !strcmp (hint, "string"))
LA_PRINT_STRING (stream, type, (gdb_byte *) output,
length, NULL, 0, options);
else
fputs_filtered (output, stream);
}
else
{
result = string_repr_error;
print_stack_unless_memory_error (stream);
}
}
do_cleanups (cleanup);
}
else if (replacement)
{
struct value_print_options opts = *options;
opts.addressprint = 0;
common_val_print (replacement, stream, recurse, &opts, language);
}
else
{
result = string_repr_error;
print_stack_unless_memory_error (stream);
}
return result;
}
