luc14n0/glib
1
0
Fork 0
mirror of https://gitlab.gnome.org/GNOME/glib.git synced 2024-11-09 19:06:15 +01:00
Code Issues Packages Projects Releases Wiki Activity

gobject_gdb.py: add pretty printer for GType and GTypeClass*

Browse Source 
This is useful for printing GValues and the content of GObjects (not the
pointer).

https://bugzilla.gnome.org/show_bug.cgi?id=794895
This commit is contained in:
Michael Olbrich 2018-03-09 15:24:59 +01:00 committed by Philip Withnall
parent 5741f203dc
commit d2c49106a4
1 changed files with 38 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
gobject/gobject_gdb.py
View File

@ -21,7 +21,7 @@ except ImportError:
def read_global_var (symname):
return gdb.selected_frame().read_var(symname)
def g_type_to_name (gtype):
def g_type_to_typenode (gtype):
def lookup_fundamental_type (typenode):
if typenode == 0:
return None
@ -36,6 +36,10 @@ def g_type_to_name (gtype):
typenode = gdb.Value(typenode).cast (gdb.lookup_type("TypeNode").pointer())
else:
typenode = lookup_fundamental_type (typenode)
return typenode
def g_type_to_name (gtype):
typenode = g_type_to_typenode(gtype)
if typenode != None:
return glib_gdb.g_quark_to_string (typenode["qname"])
return None
@ -88,9 +92,42 @@ class GTypePrettyPrinter:
return ("0x%x [%s]")% (long(self.val), name)
return ("0x%x") % (long(self.val))
def is_g_type_class_instance (val):
type = val.type
if type.code != gdb.TYPE_CODE_PTR:
return False
return str(type.target()) == "GTypeClass"
class GTypeHandlePrettyPrinter:
"Prints a GType instance"
def __init__ (self, val, hint = ""):
self.val = val
self.hint = hint
def to_string (self):
typenode = g_type_to_typenode(self.val)
if typenode != None:
name = glib_gdb.g_quark_to_string (typenode["qname"])
s = ("0x%x [%s%s")% (long(self.val), self.hint, name)
for i in range (1, int(typenode["n_supers"])):
node = g_type_to_typenode(typenode["supers"][i])
if node:
name = glib_gdb.g_quark_to_string(node["qname"])
else:
name = "???"
s += "/" + name
return s + "]"
else:
return ("0x%x") % (long(self.val))
def pretty_printer_lookup (val):
if is_g_type_instance (val):
return GTypePrettyPrinter (val)
if str(val.type) == "GType":
return GTypeHandlePrettyPrinter (val)
if is_g_type_class_instance (val):
return GTypeHandlePrettyPrinter (val["g_type"], "g_type: ")
return None