b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
225 lines
8.8 KiB
Python
225 lines
8.8 KiB
Python
"""Test stepping through ObjC method dispatch in various forms."""
|
|
|
|
from __future__ import print_function
|
|
|
|
|
|
import os
|
|
import time
|
|
import lldb
|
|
from lldbsuite.test.decorators import *
|
|
from lldbsuite.test.lldbtest import *
|
|
from lldbsuite.test import lldbutil
|
|
|
|
|
|
class TestObjCStepping(TestBase):
|
|
|
|
def getCategories(self):
|
|
return ['basic_process']
|
|
|
|
mydir = TestBase.compute_mydir(__file__)
|
|
|
|
def setUp(self):
|
|
# Call super's setUp().
|
|
TestBase.setUp(self)
|
|
# Find the line numbers that we will step to in main:
|
|
self.main_source = "stepping-tests.m"
|
|
self.source_randomMethod_line = line_number(
|
|
self.main_source, '// Source randomMethod start line.')
|
|
self.sourceBase_randomMethod_line = line_number(
|
|
self.main_source, '// SourceBase randomMethod start line.')
|
|
self.source_returnsStruct_start_line = line_number(
|
|
self.main_source, '// Source returnsStruct start line.')
|
|
self.sourceBase_returnsStruct_start_line = line_number(
|
|
self.main_source, '// SourceBase returnsStruct start line.')
|
|
self.stepped_past_nil_line = line_number(
|
|
self.main_source, '// Step over nil should stop here.')
|
|
|
|
@skipUnlessDarwin
|
|
@add_test_categories(['pyapi'])
|
|
def test_with_python_api(self):
|
|
"""Test stepping through ObjC method dispatch in various forms."""
|
|
self.build()
|
|
exe = os.path.join(os.getcwd(), "a.out")
|
|
|
|
target = self.dbg.CreateTarget(exe)
|
|
self.assertTrue(target, VALID_TARGET)
|
|
|
|
self.main_source_spec = lldb.SBFileSpec(self.main_source)
|
|
|
|
breakpoints_to_disable = []
|
|
|
|
break1 = target.BreakpointCreateBySourceRegex(
|
|
"// Set first breakpoint here.", self.main_source_spec)
|
|
self.assertTrue(break1, VALID_BREAKPOINT)
|
|
breakpoints_to_disable.append(break1)
|
|
|
|
break2 = target.BreakpointCreateBySourceRegex(
|
|
"// Set second breakpoint here.", self.main_source_spec)
|
|
self.assertTrue(break2, VALID_BREAKPOINT)
|
|
breakpoints_to_disable.append(break2)
|
|
|
|
break3 = target.BreakpointCreateBySourceRegex(
|
|
'// Set third breakpoint here.', self.main_source_spec)
|
|
self.assertTrue(break3, VALID_BREAKPOINT)
|
|
breakpoints_to_disable.append(break3)
|
|
|
|
break4 = target.BreakpointCreateBySourceRegex(
|
|
'// Set fourth breakpoint here.', self.main_source_spec)
|
|
self.assertTrue(break4, VALID_BREAKPOINT)
|
|
breakpoints_to_disable.append(break4)
|
|
|
|
break5 = target.BreakpointCreateBySourceRegex(
|
|
'// Set fifth breakpoint here.', self.main_source_spec)
|
|
self.assertTrue(break5, VALID_BREAKPOINT)
|
|
breakpoints_to_disable.append(break5)
|
|
|
|
break_returnStruct_call_super = target.BreakpointCreateBySourceRegex(
|
|
'// Source returnsStruct call line.', self.main_source_spec)
|
|
self.assertTrue(break_returnStruct_call_super, VALID_BREAKPOINT)
|
|
breakpoints_to_disable.append(break_returnStruct_call_super)
|
|
|
|
break_step_nil = target.BreakpointCreateBySourceRegex(
|
|
'// Set nil step breakpoint here.', self.main_source_spec)
|
|
self.assertTrue(break_step_nil, VALID_BREAKPOINT)
|
|
|
|
# Now launch the process, and do not stop at entry point.
|
|
process = target.LaunchSimple(
|
|
None, None, self.get_process_working_directory())
|
|
|
|
self.assertTrue(process, PROCESS_IS_VALID)
|
|
|
|
# The stop reason of the thread should be breakpoint.
|
|
threads = lldbutil.get_threads_stopped_at_breakpoint(process, break1)
|
|
if len(threads) != 1:
|
|
self.fail("Failed to stop at breakpoint 1.")
|
|
|
|
thread = threads[0]
|
|
|
|
mySource = thread.GetFrameAtIndex(0).FindVariable("mySource")
|
|
self.assertTrue(mySource, "Found mySource local variable.")
|
|
mySource_isa = mySource.GetChildMemberWithName("isa")
|
|
self.assertTrue(mySource_isa, "Found mySource->isa local variable.")
|
|
className = mySource_isa.GetSummary()
|
|
|
|
if self.TraceOn():
|
|
print(mySource_isa)
|
|
|
|
# Lets delete mySource so we can check that after stepping a child variable
|
|
# with no parent persists and is useful.
|
|
del (mySource)
|
|
|
|
# Now step in, that should leave us in the Source randomMethod:
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.source_randomMethod_line,
|
|
"Stepped into Source randomMethod.")
|
|
|
|
# Now step in again, through the super call, and that should leave us
|
|
# in the SourceBase randomMethod:
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.sourceBase_randomMethod_line,
|
|
"Stepped through super into SourceBase randomMethod.")
|
|
|
|
threads = lldbutil.continue_to_breakpoint(process, break2)
|
|
self.assertTrue(
|
|
len(threads) == 1,
|
|
"Continued to second breakpoint in main.")
|
|
|
|
# Again, step in twice gets us to a stret method and a stret super
|
|
# call:
|
|
thread = threads[0]
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.source_returnsStruct_start_line,
|
|
"Stepped into Source returnsStruct.")
|
|
|
|
threads = lldbutil.continue_to_breakpoint(
|
|
process, break_returnStruct_call_super)
|
|
self.assertTrue(
|
|
len(threads) == 1,
|
|
"Stepped to the call super line in Source returnsStruct.")
|
|
thread = threads[0]
|
|
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.sourceBase_returnsStruct_start_line,
|
|
"Stepped through super into SourceBase returnsStruct.")
|
|
|
|
# Cool now continue to get past the call that initializes the Observer, and then do our steps in again to see that
|
|
# we can find our way when we're stepping through a KVO swizzled
|
|
# object.
|
|
|
|
threads = lldbutil.continue_to_breakpoint(process, break3)
|
|
self.assertTrue(
|
|
len(threads) == 1,
|
|
"Continued to third breakpoint in main, our object should now be swizzled.")
|
|
|
|
newClassName = mySource_isa.GetSummary()
|
|
|
|
if self.TraceOn():
|
|
print(mySource_isa)
|
|
|
|
self.assertTrue(
|
|
newClassName != className,
|
|
"The isa did indeed change, swizzled!")
|
|
|
|
# Now step in, that should leave us in the Source randomMethod:
|
|
thread = threads[0]
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.source_randomMethod_line,
|
|
"Stepped into Source randomMethod in swizzled object.")
|
|
|
|
# Now step in again, through the super call, and that should leave us
|
|
# in the SourceBase randomMethod:
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.sourceBase_randomMethod_line,
|
|
"Stepped through super into SourceBase randomMethod in swizzled object.")
|
|
|
|
threads = lldbutil.continue_to_breakpoint(process, break4)
|
|
self.assertTrue(
|
|
len(threads) == 1,
|
|
"Continued to fourth breakpoint in main.")
|
|
thread = threads[0]
|
|
|
|
# Again, step in twice gets us to a stret method and a stret super
|
|
# call:
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.source_returnsStruct_start_line,
|
|
"Stepped into Source returnsStruct in swizzled object.")
|
|
|
|
threads = lldbutil.continue_to_breakpoint(
|
|
process, break_returnStruct_call_super)
|
|
self.assertTrue(
|
|
len(threads) == 1,
|
|
"Stepped to the call super line in Source returnsStruct - second time.")
|
|
thread = threads[0]
|
|
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.sourceBase_returnsStruct_start_line,
|
|
"Stepped through super into SourceBase returnsStruct in swizzled object.")
|
|
|
|
for bkpt in breakpoints_to_disable:
|
|
bkpt.SetEnabled(False)
|
|
|
|
threads = lldbutil.continue_to_breakpoint(process, break_step_nil)
|
|
self.assertTrue(len(threads) == 1, "Continued to step nil breakpoint.")
|
|
|
|
thread.StepInto()
|
|
line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine()
|
|
self.assertTrue(
|
|
line_number == self.stepped_past_nil_line,
|
|
"Step in over dispatch to nil stepped over.")
|