forked from OSchip/llvm-project
138 lines
4.7 KiB
Python
138 lines
4.7 KiB
Python
"""
|
|
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 NSURL
|
|
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')
|
|
|
|
# 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 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();
|
|
|
|
# one pointer is the ISA
|
|
# then there is one more pointer and 8 bytes of plain data
|
|
# (which are also present on a 32-bit system)
|
|
# then there is a pointer to an NSString which is the url text
|
|
# optionally, the next pointer is another NSURL which is the "base"
|
|
# of this one when doing NSURLs composition (incidentally, NSURLs can
|
|
# recurse the base+text mechanism to any desired depth)
|
|
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:
|
|
# remove final " from myself
|
|
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:
|
|
# remove @" marker from base URL string
|
|
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")
|