llvm-project/lldb/test/API/lang/cpp/function-ref-qualifiers/TestCppFunctionRefQualifier...

40 lines
1.4 KiB
Python

"""
Tests that C++ expression evaluation can
disambiguate between rvalue and lvalue
reference-qualified functions.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestFunctionRefQualifiers(TestBase):
def test(self):
self.build()
lldbutil.run_to_source_breakpoint(self, "Break here", lldb.SBFileSpec("main.cpp"))
# const lvalue
self.expect_expr("const_foo.func()", result_type="uint32_t", result_value="0")
# const rvalue
self.expect_expr("static_cast<Foo const&&>(Foo{}).func()",
result_type="int64_t", result_value="1")
# non-const lvalue
self.expect_expr("foo.func()", result_type="uint32_t", result_value="2")
# non-const rvalue
self.expect_expr("Foo{}.func()", result_type="int64_t", result_value="3")
self.filecheck("target modules dump ast", __file__)
# CHECK: |-CXXMethodDecl {{.*}} func 'uint32_t () const &'
# CHECK-NEXT: | `-AsmLabelAttr {{.*}}
# CHECK-NEXT: |-CXXMethodDecl {{.*}} func 'int64_t () const &&'
# CHECK-NEXT: | `-AsmLabelAttr {{.*}}
# CHECK-NEXT: |-CXXMethodDecl {{.*}} func 'uint32_t () &'
# CHECK-NEXT: | `-AsmLabelAttr {{.*}}
# CHECK-NEXT: `-CXXMethodDecl {{.*}} func 'int64_t () &&'
# CHECK-NEXT: `-AsmLabelAttr {{.*}}