forked from OSchip/llvm-project
128 lines
4.1 KiB
Python
128 lines
4.1 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 CFBinaryHeap
|
|
import lldb
|
|
import ctypes
|
|
import objc_runtime
|
|
import metrics
|
|
|
|
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 the length for an CFBinaryHeap, so they need not
|
|
# obey the interface specification for synthetic children providers
|
|
class CFBinaryHeapRef_SummaryProvider:
|
|
def adjust_for_architecture(self):
|
|
pass
|
|
|
|
def __init__(self, valobj, params):
|
|
self.valobj = valobj;
|
|
self.sys_params = params
|
|
if not(self.sys_params.types_cache.NSUInteger):
|
|
if self.sys_params.is_64_bit:
|
|
self.sys_params.types_cache.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedLong)
|
|
else:
|
|
self.sys_params.types_cache.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedInt)
|
|
self.update();
|
|
|
|
def update(self):
|
|
self.adjust_for_architecture();
|
|
|
|
# 8 bytes on i386
|
|
# 16 bytes on x64
|
|
# most probably 2 pointers
|
|
def offset(self):
|
|
return 2 * self.sys_params.pointer_size
|
|
|
|
def length(self):
|
|
size = self.valobj.CreateChildAtOffset("count",
|
|
self.offset(),
|
|
self.sys_params.types_cache.NSUInteger)
|
|
return size.GetValueAsUnsigned(0)
|
|
|
|
|
|
class CFBinaryHeapUnknown_SummaryProvider:
|
|
def adjust_for_architecture(self):
|
|
pass
|
|
|
|
def __init__(self, valobj, params):
|
|
self.valobj = valobj;
|
|
self.sys_params = params
|
|
self.update();
|
|
|
|
def update(self):
|
|
self.adjust_for_architecture();
|
|
|
|
def length(self):
|
|
stream = lldb.SBStream()
|
|
self.valobj.GetExpressionPath(stream)
|
|
num_children_vo = self.valobj.CreateValueFromExpression("count","(int)CFBinaryHeapGetCount(" + stream.GetData() + " )");
|
|
if num_children_vo.IsValid():
|
|
return num_children_vo.GetValueAsUnsigned(0)
|
|
return '<variable is not CFBinaryHeap>'
|
|
|
|
|
|
def GetSummary_Impl(valobj):
|
|
global statistics
|
|
class_data,wrapper = objc_runtime.Utilities.prepare_class_detection(valobj,statistics)
|
|
if wrapper:
|
|
return wrapper
|
|
|
|
name_string = class_data.class_name()
|
|
actual_name = class_data.class_name()
|
|
if class_data.is_cftype():
|
|
# CFBinaryHeap does not expose an actual NSWrapper type, so we have to check that this is
|
|
# an NSCFType and then check we are a pointer-to CFBinaryHeap
|
|
valobj_type = valobj.GetType()
|
|
if valobj_type.IsValid() and valobj_type.IsPointerType():
|
|
valobj_type = valobj_type.GetPointeeType()
|
|
if valobj_type.IsValid():
|
|
actual_name = valobj_type.GetName()
|
|
if actual_name == '__CFBinaryHeap':
|
|
wrapper = CFBinaryHeapRef_SummaryProvider(valobj, class_data.sys_params)
|
|
statistics.metric_hit('code_notrun',valobj)
|
|
return wrapper
|
|
wrapper = CFBinaryHeapUnknown_SummaryProvider(valobj, class_data.sys_params)
|
|
statistics.metric_hit('unknown_class',valobj.GetName() + " seen as " + name_string)
|
|
return wrapper;
|
|
|
|
def CFBinaryHeap_SummaryProvider (valobj,dict):
|
|
provider = GetSummary_Impl(valobj);
|
|
if provider != None:
|
|
if isinstance(provider,objc_runtime.SpecialSituation_Description):
|
|
return provider.message()
|
|
try:
|
|
summary = provider.length();
|
|
except:
|
|
summary = None
|
|
# for some reason, one needs to clear some bits for the count
|
|
# to be correct when using CF(Mutable)BagRef on x64
|
|
# the bit mask was derived through experimentation
|
|
# (if counts start looking weird, then most probably
|
|
# the mask needs to be changed)
|
|
if summary == None:
|
|
summary = '<variable is not CFBinaryHeap>'
|
|
elif isinstance(summary,basestring):
|
|
pass
|
|
else:
|
|
if provider.sys_params.is_64_bit:
|
|
summary = summary & ~0x1fff000000000000
|
|
if summary == 1:
|
|
return '@"1 item"'
|
|
else:
|
|
summary = '@"' + str(summary) + ' items"'
|
|
return summary
|
|
return 'Summary Unavailable'
|
|
|
|
def __lldb_init_module(debugger,dict):
|
|
debugger.HandleCommand("type summary add -F CFBinaryHeap.CFBinaryHeap_SummaryProvider CFBinaryHeapRef")
|