"""
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.
"""
import lldb
import ctypes
import lldb.runtime.objc.objc_runtime
import lldb.formatters.metrics
import CFString
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 NSURLKnown_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.NSString):
self.sys_params.types_cache.NSString = self.valobj.GetTarget().FindFirstType('NSString').GetPointerType()
if not(self.sys_params.types_cache.NSURL):
self.sys_params.types_cache.NSURL = self.valobj.GetTarget().FindFirstType('NSURL').GetPointerType()
self.update();
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture();
def offset_text(self):
logger = lldb.formatters.Logger.Logger()
return 24 if self.sys_params.is_64_bit else 16
def offset_base(self):
logger = lldb.formatters.Logger.Logger()
return self.offset_text()+self.sys_params.pointer_size
def url_text(self):
logger = lldb.formatters.Logger.Logger()
text = self.valobj.CreateChildAtOffset("text",
self.offset_text(),
self.sys_params.types_cache.NSString)
base = self.valobj.CreateChildAtOffset("base",
self.offset_base(),
self.sys_params.types_cache.NSURL)
my_string = CFString.CFString_SummaryProvider(text,None)
if len(my_string) > 0 and base.GetValueAsUnsigned(0) != 0:
my_string = my_string[0:len(my_string)-1]
my_string = my_string + ' -- '
my_base_string = NSURL_SummaryProvider(base,None)
if len(my_base_string) > 2:
my_base_string = my_base_string[2:]
my_string = my_string + my_base_string
return my_string
class NSURLUnknown_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 url_text(self):
logger = lldb.formatters.Logger.Logger()
stream = lldb.SBStream()
self.valobj.GetExpressionPath(stream)
url_text_vo = self.valobj.CreateValueFromExpression("url","(NSString*)[" + stream.GetData() + " description]")
if url_text_vo.IsValid():
return CFString.CFString_SummaryProvider(url_text_vo,None)
return '<variable is not NSURL>'
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 == 'NSURL':
wrapper = NSURLKnown_SummaryProvider(valobj, class_data.sys_params)
statistics.metric_hit('code_notrun',valobj)
else:
wrapper = NSURLUnknown_SummaryProvider(valobj, class_data.sys_params)
statistics.metric_hit('unknown_class',valobj.GetName() + " seen as " + name_string)
return wrapper;
def NSURL_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.url_text();
except:
summary = None
logger >> "got summary " + str(summary)
if summary == None or summary == '':
summary = '<variable is not NSURL>'
return summary
return 'Summary Unavailable'
def __lldb_init_module(debugger,dict):
debugger.HandleCommand("type summary add -F NSURL.NSURL_SummaryProvider NSURL CFURLRef")