TestTemplateFunctions.py
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"""
Test that we can call C++ template fucntions.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TemplateFunctionsTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def do_test_template_function(self, add_cast):
self.build()
lldbutil.run_to_source_breakpoint(self, '// break here',
lldb.SBFileSpec("main.cpp", False))
if add_cast:
self.expect_expr("(int) foo(42)", result_type="int", result_value="42")
else:
self.expect("expr b1 <=> b2", error=True, substrs=["warning: <user expression 0>:1:4: '<=>' is a single token in C++20; add a space to avoid a change in behavior"])
self.expect_expr("foo(42)", result_type="int", result_value="42")
# overload with template case
self.expect_expr("h(10)", result_type="int", result_value="10")
# ADL lookup case
self.expect_expr("f(A::C{})", result_type="int", result_value="4")
# ADL lookup but no overload
self.expect_expr("g(A::C{})", result_type="int", result_value="4")
# variadic function cases
self.expect_expr("var(1)", result_type="int", result_value="10")
self.expect_expr("var(1, 2)", result_type="int", result_value="10")
# Overloaded templated operator case
self.expect_expr("b1 > b2", result_type="bool", result_value="true")
self.expect_expr("b1 >> b2", result_type="bool", result_value="true")
self.expect_expr("b1 << b2", result_type="bool", result_value="true")
self.expect_expr("b1 == b2", result_type="bool", result_value="true")
# Overloaded operator case
self.expect_expr("d1 > d2", result_type="bool", result_value="true")
self.expect_expr("d1 >> d2", result_type="bool", result_value="true")
self.expect_expr("d1 << d2", result_type="bool", result_value="true")
self.expect_expr("d1 == d2", result_type="bool", result_value="true")
@skipIfWindows
def test_template_function_with_cast(self):
self.do_test_template_function(True)
@skipIfWindows
@expectedFailureAll(debug_info=["dwarf", "gmodules", "dwo"])
def test_template_function_without_cast(self):
self.do_test_template_function(False)