1 files changed, 114 insertions, 0 deletions
diff --git a/examples/summaries/cocoa/NSException.py b/examples/summaries/cocoa/NSException.py
new file mode 100644
index 000000000000..72bf895bdbc3
--- /dev/null
+++ b/examples/summaries/cocoa/NSException.py
@@ -0,0 +1,114 @@
+"""
+LLDB AppKit formatters
+
+part of The LLVM Compiler Infrastructure
+This file is distributed under the University of Illinois Open Source
+License. See LICENSE.TXT for details.
+"""
+# summary provider for class NSException
+import lldb.runtime.objc.objc_runtime
+import lldb.formatters.metrics
+import CFString
+import lldb
+import lldb.formatters.Logger
+
+statistics = lldb.formatters.metrics.Metrics()
+statistics.add_metric('invalid_isa')
+statistics.add_metric('invalid_pointer')
+statistics.add_metric('unknown_class')
+statistics.add_metric('code_notrun')
+
+class NSKnownException_SummaryProvider:
+	def adjust_for_architecture(self):
+		pass
+
+	def __init__(self, valobj, params):
+		logger = lldb.formatters.Logger.Logger()
+		self.valobj = valobj;
+		self.sys_params = params
+		if not (self.sys_params.types_cache.id):
+			self.sys_params.types_cache.id = self.valobj.GetType().GetBasicType(lldb.eBasicTypeObjCID)
+		self.update();
+
+	def update(self):
+		logger = lldb.formatters.Logger.Logger()
+		self.adjust_for_architecture();
+
+	def offset_name(self):
+		logger = lldb.formatters.Logger.Logger()
+		return self.sys_params.pointer_size
+	def offset_reason(self):
+		logger = lldb.formatters.Logger.Logger()
+		return 2*self.sys_params.pointer_size
+
+	def description(self):
+		logger = lldb.formatters.Logger.Logger()
+		name_ptr = self.valobj.CreateChildAtOffset("name",
+							self.offset_name(),
+							self.sys_params.types_cache.id)
+		reason_ptr = self.valobj.CreateChildAtOffset("reason",
+							self.offset_reason(),
+							self.sys_params.types_cache.id)
+		return 'name:' + CFString.CFString_SummaryProvider(name_ptr,None) + ' reason:' + CFString.CFString_SummaryProvider(reason_ptr,None)
+
+class NSUnknownException_SummaryProvider:
+	def adjust_for_architecture(self):
+		pass
+
+	def __init__(self, valobj, params):
+		logger = lldb.formatters.Logger.Logger()
+		self.valobj = valobj;
+		self.sys_params = params
+		self.update();
+
+	def update(self):
+		logger = lldb.formatters.Logger.Logger()
+		self.adjust_for_architecture();
+
+	def description(self):
+		logger = lldb.formatters.Logger.Logger()
+		stream = lldb.SBStream()
+		self.valobj.GetExpressionPath(stream)
+		name_vo = self.valobj.CreateValueFromExpression("name","(NSString*)[" + stream.GetData() + " name]");
+		reason_vo = self.valobj.CreateValueFromExpression("reason","(NSString*)[" + stream.GetData() + " reason]");
+		if name_vo.IsValid() and reason_vo.IsValid():
+			return CFString.CFString_SummaryProvider(name_vo,None) + ' ' + CFString.CFString_SummaryProvider(reason_vo,None)
+		return '<variable is not NSException>'
+
+
+def GetSummary_Impl(valobj):
+	logger = lldb.formatters.Logger.Logger()
+	global statistics
+	class_data,wrapper =lldb.runtime.objc.objc_runtime.Utilities.prepare_class_detection(valobj,statistics)
+	if wrapper:
+		return wrapper
+	
+	name_string = class_data.class_name()
+	logger >> "class name is: " + str(name_string)
+
+	if name_string == 'NSException':
+		wrapper = NSKnownException_SummaryProvider(valobj, class_data.sys_params)
+		statistics.metric_hit('code_notrun',valobj)
+	else:
+		wrapper = NSUnknownException_SummaryProvider(valobj, class_data.sys_params)
+		statistics.metric_hit('unknown_class',valobj.GetName() + " seen as " + name_string)
+	return wrapper;
+
+def NSException_SummaryProvider (valobj,dict):
+	logger = lldb.formatters.Logger.Logger()
+	provider = GetSummary_Impl(valobj);
+	if provider != None:
+		if isinstance(provider,lldb.runtime.objc.objc_runtime.SpecialSituation_Description):
+			return provider.message()
+		try:
+			summary = provider.description();
+		except:
+			summary = None
+		logger >> "got summary " + str(summary)
+		if summary == None:
+			summary = '<variable is not NSException>'
+		return str(summary)
+	return 'Summary Unavailable'
+
+def __lldb_init_module(debugger,dict):
+	debugger.HandleCommand("type summary add -F NSException.NSException_SummaryProvider NSException")