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Diffstat (limited to 'packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py')
| -rw-r--r-- | packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py b/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py new file mode 100644 index 000000000000..4cad45564c87 --- /dev/null +++ b/packages/Python/lldbsuite/test/lang/cpp/namespace/TestNamespaceLookup.py @@ -0,0 +1,223 @@ +""" +Test the printing of anonymous and named namespace variables. +""" + +from __future__ import print_function + + +import os, time +import lldb +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class NamespaceLookupTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + def setUp(self): + # Call super's setUp(). + TestBase.setUp(self) + # Break inside different scopes and evaluate value + self.line_break_global_scope = line_number('ns.cpp', '// BP_global_scope') + self.line_break_file_scope = line_number('ns2.cpp', '// BP_file_scope') + self.line_break_ns_scope = line_number('ns2.cpp', '// BP_ns_scope') + self.line_break_nested_ns_scope = line_number('ns2.cpp', '// BP_nested_ns_scope') + self.line_break_nested_ns_scope_after_using = line_number('ns2.cpp', '// BP_nested_ns_scope_after_using') + self.line_break_before_using_directive = line_number('ns3.cpp', '// BP_before_using_directive') + self.line_break_after_using_directive = line_number('ns3.cpp', '// BP_after_using_directive') + + def runToBkpt(self, command): + self.runCmd(command, RUN_SUCCEEDED) + # The stop reason of the thread should be breakpoint. + self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, + substrs = ['stopped', + 'stop reason = breakpoint']) + + @expectedFailureFreeBSD("llvm.org/pr25819") + @expectedFailureLinux("llvm.org/pr25819") + def test_scope_lookup_with_run_command(self): + """Test scope lookup of functions in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns.cpp", self.line_break_global_scope, num_expected_locations=1, loc_exact=False) + lldbutil.run_break_set_by_file_and_line (self, "ns2.cpp", self.line_break_ns_scope, num_expected_locations=1, loc_exact=False) + lldbutil.run_break_set_by_file_and_line (self, "ns2.cpp", self.line_break_nested_ns_scope, num_expected_locations=1, loc_exact=False) + lldbutil.run_break_set_by_file_and_line (self, "ns2.cpp", self.line_break_nested_ns_scope_after_using, num_expected_locations=1, loc_exact=False) + lldbutil.run_break_set_by_file_and_line (self, "ns3.cpp", self.line_break_before_using_directive, num_expected_locations=1, loc_exact=False) + lldbutil.run_break_set_by_file_and_line (self, "ns3.cpp", self.line_break_after_using_directive, num_expected_locations=1, loc_exact=False) + + # Run to BP_global_scope at global scope + self.runToBkpt("run") + # Evaluate func() - should call ::func() + self.expect("expr -- func()", startstr = "(int) $0 = 1") + # Evaluate A::B::func() - should call A::B::func() + self.expect("expr -- A::B::func()", startstr = "(int) $1 = 4") + # Evaluate func(10) - should call ::func(int) + self.expect("expr -- func(10)", startstr = "(int) $2 = 11") + # Evaluate ::func() - should call A::func() + self.expect("expr -- ::func()", startstr = "(int) $3 = 1") + # Evaluate A::foo() - should call A::foo() + self.expect("expr -- A::foo()", startstr = "(int) $4 = 42") + + # Continue to BP_ns_scope at ns scope + self.runToBkpt("continue") + # Evaluate func(10) - should call A::func(int) + self.expect("expr -- func(10)", startstr = "(int) $5 = 13") + # Evaluate B::func() - should call B::func() + self.expect("expr -- B::func()", startstr = "(int) $6 = 4") + # Evaluate func() - should call A::func() + self.expect("expr -- func()", startstr = "(int) $7 = 3") + + # Continue to BP_nested_ns_scope at nested ns scope + self.runToBkpt("continue") + # Evaluate func() - should call A::B::func() + self.expect("expr -- func()", startstr = "(int) $8 = 4") + # Evaluate A::func() - should call A::func() + self.expect("expr -- A::func()", startstr = "(int) $9 = 3") + + # Evaluate func(10) - should call A::func(10) + # NOTE: Under the rules of C++, this test would normally get an error + # because A::B::func() hides A::func(), but lldb intentionally + # disobeys these rules so that the intended overload can be found + # by only removing duplicates if they have the same type. + self.expect("expr -- func(10)", startstr = "(int) $10 = 13") + + # Continue to BP_nested_ns_scope_after_using at nested ns scope after using declaration + self.runToBkpt("continue") + # Evaluate A::func(10) - should call A::func(int) + self.expect("expr -- A::func(10)", startstr = "(int) $11 = 13") + + # Continue to BP_before_using_directive at global scope before using declaration + self.runToBkpt("continue") + # Evaluate ::func() - should call ::func() + self.expect("expr -- ::func()", startstr = "(int) $12 = 1") + # Evaluate B::func() - should call B::func() + self.expect("expr -- B::func()", startstr = "(int) $13 = 4") + + # Continue to BP_after_using_directive at global scope after using declaration + self.runToBkpt("continue") + # Evaluate ::func() - should call ::func() + self.expect("expr -- ::func()", startstr = "(int) $14 = 1") + # Evaluate B::func() - should call B::func() + self.expect("expr -- B::func()", startstr = "(int) $15 = 4") + + @unittest2.expectedFailure("lldb scope lookup of functions bugs") + def test_function_scope_lookup_with_run_command(self): + """Test scope lookup of functions in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns.cpp", self.line_break_global_scope, num_expected_locations=1, loc_exact=False) + lldbutil.run_break_set_by_file_and_line (self, "ns2.cpp", self.line_break_ns_scope, num_expected_locations=1, loc_exact=False) + + # Run to BP_global_scope at global scope + self.runToBkpt("run") + # Evaluate foo() - should call ::foo() + # FIXME: lldb finds Y::foo because lookup for variables is done + # before functions. + self.expect("expr -- foo()", startstr = "(int) $0 = 42") + # Evaluate ::foo() - should call ::foo() + # FIXME: lldb finds Y::foo because lookup for variables is done + # before functions and :: is ignored. + self.expect("expr -- ::foo()", startstr = "(int) $1 = 42") + + # Continue to BP_ns_scope at ns scope + self.runToBkpt("continue") + # Evaluate foo() - should call A::foo() + # FIXME: lldb finds Y::foo because lookup for variables is done + # before functions. + self.expect("expr -- foo()", startstr = "(int) $2 = 42") + + @unittest2.expectedFailure("lldb file scope lookup bugs") + def test_file_scope_lookup_with_run_command(self): + """Test file scope lookup in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns2.cpp", self.line_break_file_scope, num_expected_locations=1, loc_exact=False) + + # Run to BP_file_scope at file scope + self.runToBkpt("run") + # Evaluate func() - should call static ns2.cpp:func() + # FIXME: This test fails because lldb doesn't know about file scopes so + # finds the global ::func(). + self.expect("expr -- func()", startstr = "(int) $0 = 2") + + @expectedFailureLinux("llvm.org/pr25819") + def test_scope_lookup_before_using_with_run_command(self): + """Test scope lookup before using in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns3.cpp", self.line_break_before_using_directive, num_expected_locations=1, loc_exact=False) + + # Run to BP_before_using_directive at global scope before using declaration + self.runToBkpt("run") + # Evaluate func() - should call ::func() + self.expect("expr -- func()", startstr = "(int) $0 = 1") + + # NOTE: this test may fail on older systems that don't emit import + # emtries in DWARF - may need to add checks for compiler versions here. + @expectedFailureFreeBSD("llvm.org/pr25819") + @expectedFailureLinux("llvm.org/pr25819") + def test_scope_after_using_directive_lookup_with_run_command(self): + """Test scope lookup after using directive in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns3.cpp", self.line_break_after_using_directive, num_expected_locations=1, loc_exact=False) + + # Run to BP_after_using_directive at global scope after using declaration + self.runToBkpt("run") + # Evaluate func2() - should call A::func2() + self.expect("expr -- func2()", startstr = "(int) $0 = 3") + + @unittest2.expectedFailure("lldb scope lookup after using declaration bugs") + # NOTE: this test may fail on older systems that don't emit import + # emtries in DWARF - may need to add checks for compiler versions here. + def test_scope_after_using_declaration_lookup_with_run_command(self): + """Test scope lookup after using declaration in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns2.cpp", self.line_break_nested_ns_scope_after_using, num_expected_locations=1, loc_exact=False) + + # Run to BP_nested_ns_scope_after_using at nested ns scope after using declaration + self.runToBkpt("run") + # Evaluate func() - should call A::func() + self.expect("expr -- func()", startstr = "(int) $0 = 3") + + @unittest2.expectedFailure("lldb scope lookup ambiguity after using bugs") + def test_scope_ambiguity_after_using_lookup_with_run_command(self): + """Test scope lookup ambiguity after using in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns3.cpp", self.line_break_after_using_directive, num_expected_locations=1, loc_exact=False) + + # Run to BP_after_using_directive at global scope after using declaration + self.runToBkpt("run") + # Evaluate func() - should get error: ambiguous + # FIXME: This test fails because lldb removes duplicates if they have + # the same type. + self.expect("expr -- func()", startstr = "error") + + @expectedFailureFreeBSD("llvm.org/pr25819") + @expectedFailureLinux("llvm.org/pr25819") + def test_scope_lookup_shadowed_by_using_with_run_command(self): + """Test scope lookup shadowed by using in lldb.""" + self.build() + self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) + + lldbutil.run_break_set_by_file_and_line (self, "ns2.cpp", self.line_break_nested_ns_scope, num_expected_locations=1, loc_exact=False) + + # Run to BP_nested_ns_scope at nested ns scope + self.runToBkpt("run") + # Evaluate func(10) - should call A::func(10) + # NOTE: Under the rules of C++, this test would normally get an error + # because A::B::func() shadows A::func(), but lldb intentionally + # disobeys these rules so that the intended overload can be found + # by only removing duplicates if they have the same type. + self.expect("expr -- func(10)", startstr = "(int) $0 = 13") + |