TestFormatters.py
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"""
Test using LLDB data formatters with frozen objects coming from the expression parser.
"""
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 " + self.getBuildArtifact("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.filecheck("expression --show-types -- *(new_foo(47))", __file__,
'-check-prefix=EXPR-TYPES-NEW-FOO')
# EXPR-TYPES-NEW-FOO: (foo) ${{.*}} = {
# EXPR-TYPES-NEW-FOO-NEXT: (int) a = 47
# EXPR-TYPES-NEW-FOO-NEXT: (int *) a_ptr = 0x
# EXPR-TYPES-NEW-FOO-NEXT: (bar) b = {
# EXPR-TYPES-NEW-FOO-NEXT: (int) i = 94
# EXPR-TYPES-NEW-FOO-NEXT: (int *) i_ptr = 0x
# EXPR-TYPES-NEW-FOO-NEXT: (baz) b = {
# EXPR-TYPES-NEW-FOO-NEXT: (int) h = 97
# EXPR-TYPES-NEW-FOO-NEXT: (int) k = 99
# EXPR-TYPES-NEW-FOO-NEXT: }
# EXPR-TYPES-NEW-FOO-NEXT: (baz &) b_ref = 0x
# EXPR-TYPES-NEW-FOO-NEXT: }
# EXPR-TYPES-NEW-FOO-NEXT: }
self.runCmd("type summary add -F formatters.foo_SummaryProvider3 foo")
self.filecheck("expression foo1", __file__, '-check-prefix=EXPR-FOO1opts')
# EXPR-FOO1opts: (foo) $
# EXPR-FOO1opts-SAME: a = 12
# EXPR-FOO1opts-SAME: a_ptr = {{[0-9]+}} -> 13
# EXPR-FOO1opts-SAME: i = 24
# EXPR-FOO1opts-SAME: i_ptr = {{[0-9]+}} -> 25
# EXPR-FOO1opts-SAME: b_ref = {{[0-9]+}}
# EXPR-FOO1opts-SAME: h = 27
# EXPR-FOO1opts-SAME: k = 29
# EXPR-FOO1opts-SAME: WITH_OPTS
self.runCmd("type summary delete foo")
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.filecheck("expression foo1", __file__, '-check-prefix=EXPR-FOO1')
# EXPR-FOO1: (foo) $
# EXPR-FOO1-SAME: a = 12
# EXPR-FOO1-SAME: a_ptr = {{[0-9]+}} -> 13
# EXPR-FOO1-SAME: i = 24
# EXPR-FOO1-SAME: i_ptr = {{[0-9]+}} -> 25
# EXPR-FOO1-SAME: b_ref = {{[0-9]+}}
# EXPR-FOO1-SAME: h = 27
# EXPR-FOO1-SAME: k = 29
self.filecheck("expression --ptr-depth=1 -- new_foo(47)", __file__,
'-check-prefix=EXPR-PTR-DEPTH1')
# EXPR-PTR-DEPTH1: (foo *) $
# EXPR-PTR-DEPTH1-SAME: a = 47
# EXPR-PTR-DEPTH1-SAME: a_ptr = {{[0-9]+}} -> 48
# EXPR-PTR-DEPTH1-SAME: i = 94
# EXPR-PTR-DEPTH1-SAME: i_ptr = {{[0-9]+}} -> 95
self.filecheck("expression foo2", __file__, '-check-prefix=EXPR-FOO2')
# EXPR-FOO2: (foo) $
# EXPR-FOO2-SAME: a = 121
# EXPR-FOO2-SAME: a_ptr = {{[0-9]+}} -> 122
# EXPR-FOO2-SAME: i = 242
# EXPR-FOO2-SAME: i_ptr = {{[0-9]+}} -> 243
# EXPR-FOO2-SAME: h = 245
# EXPR-FOO2-SAME: k = 247
object_name = self.res.GetOutput()
object_name = object_name[7:]
object_name = object_name[0:object_name.find(' =')]
self.filecheck("frame variable foo2", __file__, '-check-prefix=VAR-FOO2')
# VAR-FOO2: (foo) foo2
# VAR-FOO2-SAME: a = 121
# VAR-FOO2-SAME: a_ptr = {{[0-9]+}} -> 122
# VAR-FOO2-SAME: i = 242
# VAR-FOO2-SAME: i_ptr = {{[0-9]+}} -> 243
# VAR-FOO2-SAME: h = 245
# VAR-FOO2-SAME: k = 247
# The object is the same as foo2, so use the EXPR-FOO2 checks.
self.filecheck("expression $" + object_name, __file__,
'-check-prefix=EXPR-FOO2')
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')
ret = line_number("main.cpp", "Done initializing")
self.runCmd("thread until " + str(ret))
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')