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"""
Test basic std::weak_ptr functionality.
"""
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestSharedPtr(TestBase):
@add_test_categories(["libc++"])
@skipIf(compiler=no_match("clang"))
@skipIf(compiler="clang", compiler_version=["<", "17.0"])
@skipIf(macos_version=["<", "15.0"])
def test(self):
self.build()
lldbutil.run_to_source_breakpoint(
self, "// Set break point at this line.", lldb.SBFileSpec("main.cpp")
)
self.runCmd("settings set target.import-std-module true")
self.expect_expr(
"w",
result_type="std::weak_ptr<int>",
result_summary="3 strong=1 weak=1",
result_children=[ValueCheck(name="pointer")],
)
self.expect_expr("*w.lock()", result_type="element_type", result_value="3")
self.expect_expr("*w.lock() = 5", result_type="element_type", result_value="5")
self.expect_expr("*w.lock()", result_type="element_type", result_value="5")
self.expect_expr("w.use_count()", result_type="long", result_value="1")
self.expect("expr w.reset()")
self.expect_expr("w.use_count()", result_type="long", result_value="0")
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