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"""
Test using LLDB data formatters with frozen objects coming from the expression parser.
"""
from __future__ import print_function
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class ExprFormattersTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break for main.cpp.
self.line = line_number('main.cpp',
'// Stop here')
@skipIfFreeBSD # llvm.org/pr24691 skipping to avoid crashing the test runner
@expectedFailureAll(oslist=['freebsd'], bugnumber='llvm.org/pr19011 Newer Clang omits C1 complete object constructor')
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr21765")
@skipIfTargetAndroid() # skipping to avoid crashing the test runner
@expectedFailureAndroid('llvm.org/pr24691') # we hit an assertion in clang
def test(self):
"""Test expr + formatters for good interoperability."""
self.build()
# This is the function to remove the custom formats in order to have a
# clean slate for the next test case.
def cleanup():
self.runCmd('type summary clear', check=False)
self.runCmd('type synthetic clear', check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
"""Test expr + formatters for good interoperability."""
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
self.runCmd("command script import formatters.py")
self.runCmd("command script import foosynth.py")
if self.TraceOn():
self.runCmd("frame variable foo1 --show-types")
self.runCmd("frame variable foo1.b --show-types")
self.runCmd("frame variable foo1.b.b_ref --show-types")
self.expect("expression --show-types -- *(new foo(47))",
substrs = ['(int) a = 47', '(bar) b = {', '(int) i = 94', '(baz) b = {', '(int) k = 99'])
self.runCmd("type summary add -F formatters.foo_SummaryProvider foo")
self.expect("expression new int(12)",
substrs = ['(int *) $', ' = 0x'])
self.runCmd("type summary add -s \"${var%pointer} -> ${*var%decimal}\" \"int *\"")
self.expect("expression new int(12)",
substrs = ['(int *) $', '= 0x', ' -> 12'])
self.expect("expression foo1.a_ptr",
substrs = ['(int *) $', '= 0x', ' -> 13'])
self.expect("expression foo1",
substrs = ['(foo) $', ' a = 12', 'a_ptr = ', ' -> 13','i = 24','i_ptr = ', ' -> 25'])
self.expect("expression --ptr-depth=1 -- new foo(47)",
substrs = ['(foo *) $', 'a = 47','a_ptr = ', ' -> 48','i = 94','i_ptr = ', ' -> 95'])
self.expect("expression foo2",
substrs = ['(foo) $', 'a = 121','a_ptr = ', ' -> 122','i = 242','i_ptr = ', ' -> 243'])
object_name = self.res.GetOutput()
object_name = object_name[7:]
object_name = object_name[0:object_name.find(' =')]
self.expect("frame variable foo2",
substrs = ['(foo)', 'foo2', 'a = 121','a_ptr = ', ' -> 122','i = 242','i_ptr = ', ' -> 243'])
self.expect("expression $" + object_name,
substrs = ['(foo) $', 'a = 121','a_ptr = ', ' -> 122','i = 242','i_ptr = ', ' -> 243', 'h = 245','k = 247'])
self.runCmd("type summary delete foo")
self.runCmd("type synthetic add --python-class foosynth.FooSyntheticProvider foo")
self.expect("expression --show-types -- $" + object_name,
substrs = ['(foo) $', ' = {', '(int) *i_ptr = 243'])
self.runCmd("n")
self.runCmd("n")
self.runCmd("type synthetic delete foo")
self.runCmd("type summary add -F formatters.foo_SummaryProvider foo")
self.expect("expression foo2",
substrs = ['(foo) $', 'a = 7777','a_ptr = ', ' -> 122','i = 242','i_ptr = ', ' -> 8888'])
self.expect("expression $" + object_name + '.a',
substrs = ['7777'])
self.expect("expression *$" + object_name + '.b.i_ptr',
substrs = ['8888'])
self.expect("expression $" + object_name,
substrs = ['(foo) $', 'a = 121', 'a_ptr = ', ' -> 122', 'i = 242', 'i_ptr = ', ' -> 8888', 'h = 245','k = 247'])
self.runCmd("type summary delete foo")
self.runCmd("type synthetic add --python-class foosynth.FooSyntheticProvider foo")
self.expect("expression --show-types -- $" + object_name,
substrs = ['(foo) $', ' = {', '(int) *i_ptr = 8888'])
self.runCmd("n")
self.runCmd("type synthetic delete foo")
self.runCmd("type summary add -F formatters.foo_SummaryProvider foo")
self.expect("expression $" + object_name,
substrs = ['(foo) $', 'a = 121','a_ptr = ', ' -> 122','i = 242', 'i_ptr = ', ' -> 8888','k = 247'])
process = self.dbg.GetSelectedTarget().GetProcess()
thread = process.GetThreadAtIndex(0)
frame = thread.GetSelectedFrame()
frozen = frame.EvaluateExpression("$" + object_name + ".a_ptr")
a_data = frozen.GetPointeeData()
error = lldb.SBError()
self.assertTrue(a_data.GetUnsignedInt32(error, 0) == 122, '*a_ptr = 122')
self.runCmd("n");self.runCmd("n");self.runCmd("n");
self.expect("frame variable numbers",
substrs = ['1','2','3','4','5'])
self.expect("expression numbers",
substrs = ['1','2','3','4','5'])
frozen = frame.EvaluateExpression("&numbers")
a_data = frozen.GetPointeeData(0, 1)
self.assertTrue(a_data.GetUnsignedInt32(error, 0) == 1, 'numbers[0] == 1')
self.assertTrue(a_data.GetUnsignedInt32(error, 4) == 2, 'numbers[1] == 2')
self.assertTrue(a_data.GetUnsignedInt32(error, 8) == 3, 'numbers[2] == 3')
self.assertTrue(a_data.GetUnsignedInt32(error, 12) == 4, 'numbers[3] == 4')
self.assertTrue(a_data.GetUnsignedInt32(error, 16) == 5, 'numbers[4] == 5')
frozen = frame.EvaluateExpression("numbers")
a_data = frozen.GetData()
self.assertTrue(a_data.GetUnsignedInt32(error, 0) == 1, 'numbers[0] == 1')
self.assertTrue(a_data.GetUnsignedInt32(error, 4) == 2, 'numbers[1] == 2')
self.assertTrue(a_data.GetUnsignedInt32(error, 8) == 3, 'numbers[2] == 3')
self.assertTrue(a_data.GetUnsignedInt32(error, 12) == 4, 'numbers[3] == 4')
self.assertTrue(a_data.GetUnsignedInt32(error, 16) == 5, 'numbers[4] == 5')
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