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"""
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 {{.*}}
|
