1 files changed, 125 insertions, 0 deletions
diff --git a/lldb/examples/summaries/cocoa/NSBundle.py b/lldb/examples/summaries/cocoa/NSBundle.py
new file mode 100644
index 00000000000..5e6b11a6fc0
--- /dev/null
+++ b/lldb/examples/summaries/cocoa/NSBundle.py
@@ -0,0 +1,125 @@
+# summary provider for NSBundle
+import lldb
+import ctypes
+import objc_runtime
+import metrics
+import NSURL
+
+statistics = metrics.Metrics()
+statistics.add_metric('invalid_isa')
+statistics.add_metric('invalid_pointer')
+statistics.add_metric('unknown_class')
+statistics.add_metric('code_notrun')
+
+# despite the similary to synthetic children providers, these classes are not
+# trying to provide anything but a summary for an NSURL, so they need not
+# obey the interface specification for synthetic children providers
+class NSBundleKnown_SummaryProvider:
+	def adjust_for_architecture(self):
+		self.lp64 = (self.valobj.GetTarget().GetProcess().GetAddressByteSize() == 8)
+		self.is_little = (self.valobj.GetTarget().GetProcess().GetByteOrder() == lldb.eByteOrderLittle)
+		self.pointer_size = self.valobj.GetTarget().GetProcess().GetAddressByteSize()
+
+	def __init__(self, valobj):
+		self.valobj = valobj;
+		self.update();
+
+	def update(self):
+		self.adjust_for_architecture();
+		self.id_type = self.valobj.GetType().GetBasicType(lldb.eBasicTypeObjCID)
+		if self.lp64:
+			self.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedLong)
+			self.pointer_size = 8
+		else:
+			self.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedInt)
+			self.pointer_size = 4
+		self.NSString = self.valobj.GetTarget().FindFirstType('NSString')
+		self.NSURL = self.valobj.GetTarget().FindFirstType('NSURL')
+
+	# we need to skip the ISA, plus four other values
+	# that are luckily each a pointer in size
+	# which makes our computation trivial :-)
+	def offset(self):
+		return 5 * self.pointer_size
+
+	def url_text(self):
+		global statistics
+		text = self.valobj.CreateChildAtOffset("text",
+							self.offset(),
+							self.NSString.GetPointerType())
+		my_string = text.GetSummary()
+		if (my_string == None) or (my_string == ''):
+			statistics.metric_hit('unknown_class',str(self.valobj) + " triggered unkown pointer location")
+			return NSBundleUnknown_SummaryProvider(self.valobj).url_text()
+		else:
+			statistics.metric_hit('code_notrun',self.valobj)
+			return my_string
+
+
+class NSBundleUnknown_SummaryProvider:
+	def adjust_for_architecture(self):
+		self.lp64 = (self.valobj.GetTarget().GetProcess().GetAddressByteSize() == 8)
+		self.is_little = (self.valobj.GetTarget().GetProcess().GetByteOrder() == lldb.eByteOrderLittle)
+		self.pointer_size = self.valobj.GetTarget().GetProcess().GetAddressByteSize()
+
+	def __init__(self, valobj):
+		self.valobj = valobj;
+		self.update()
+
+	def update(self):
+		self.adjust_for_architecture();
+		self.id_type = self.valobj.GetType().GetBasicType(lldb.eBasicTypeObjCID)
+
+	def url_text(self):
+		stream = lldb.SBStream()
+		self.valobj.GetExpressionPath(stream)
+		expr = "(NSString*)[" + stream.GetData() + " bundlePath]"
+		url_text_vo = self.valobj.CreateValueFromExpression("path",expr);
+		return url_text_vo.GetSummary()
+
+
+def GetSummary_Impl(valobj):
+	global statistics
+	class_data = objc_runtime.ObjCRuntime(valobj)
+	if class_data.is_valid() == False:
+		statistics.metric_hit('invalid_pointer',valobj)
+		wrapper = None
+		return
+	class_data = class_data.read_class_data()
+	if class_data.is_valid() == False:
+		statistics.metric_hit('invalid_isa',valobj)
+		wrapper = None
+		return
+	if class_data.is_kvo():
+		class_data = class_data.get_superclass()
+	if class_data.is_valid() == False:
+		statistics.metric_hit('invalid_isa',valobj)
+		wrapper = None
+		return
+	
+	name_string = class_data.class_name()
+	if name_string == 'NSBundle':
+		wrapper = NSBundleKnown_SummaryProvider(valobj)
+		# [NSBundle mainBundle] does return an object that is
+		# not correctly filled out for our purposes, so we still
+		# end up having to run code in that case
+		#statistics.metric_hit('code_notrun',valobj)
+	else:
+		wrapper = NSBundleUnknown_SummaryProvider(valobj)
+		statistics.metric_hit('unknown_class',str(valobj) + " seen as " + name_string)
+	return wrapper;
+
+def NSBundle_SummaryProvider (valobj,dict):
+	provider = GetSummary_Impl(valobj);
+	if provider != None:
+	    try:
+	        summary = provider.url_text();
+	    except:
+	        summary = None
+	    if summary == None or summary == '':
+	        summary = 'no valid NSBundle here'
+	    return summary
+	return ''
+
+def __lldb_init_module(debugger,dict):
+	debugger.HandleCommand("type summary add -F NSBundle.NSBundle_SummaryProvider NSBundle")