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"""Test that lldb can invoke blocks and access variables inside them"""
from __future__ import print_function
import unittest2
import os
import time
import lldb
from lldbsuite.test.lldbtest import *
from lldbsuite.test.decorators import *
import lldbsuite.test.lldbutil as lldbutil
class BlocksTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
lines = []
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line numbers to break at.
self.lines.append(line_number('main.c', '// Set breakpoint 0 here.'))
self.lines.append(line_number('main.c', '// Set breakpoint 1 here.'))
def launch_common(self):
self.build()
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
self.is_started = False
# Break inside the foo function which takes a bar_ptr argument.
for line in self.lines:
lldbutil.run_break_set_by_file_and_line(
self, "main.c", line, num_expected_locations=1, loc_exact=True)
self.wait_for_breakpoint()
@skipUnlessDarwin
def test_expr(self):
self.launch_common()
self.expect("expression a + b", VARIABLES_DISPLAYED_CORRECTLY,
substrs=["= 7"])
self.expect("expression c", VARIABLES_DISPLAYED_CORRECTLY,
substrs=["= 1"])
self.wait_for_breakpoint()
# This should display correctly.
self.expect("expression (int)neg (-12)", VARIABLES_DISPLAYED_CORRECTLY,
substrs=["= 12"])
@skipUnlessDarwin
def test_define(self):
self.launch_common()
self.runCmd(
"expression int (^$add)(int, int) = ^int(int a, int b) { return a + b; };")
self.expect(
"expression $add(2,3)",
VARIABLES_DISPLAYED_CORRECTLY,
substrs=[" = 5"])
self.runCmd("expression int $a = 3")
self.expect(
"expression int (^$addA)(int) = ^int(int b) { return $a + b; };",
"Proper error is reported on capture",
error=True)
def wait_for_breakpoint(self):
if not self.is_started:
self.is_started = True
self.runCmd("process launch", RUN_SUCCEEDED)
else:
self.runCmd("process continue", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs=['stopped',
'stop reason = breakpoint'])
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