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| """
Test the printing of anonymous and named namespace variables.
"""
from __future__ import print_function
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import 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'])
@expectedFailureAll(
oslist=["freebsd"],
bugnumber="llvm.org/pr25819")
@skipIfWindows # This is flakey on Windows: llvm.org/pr38373
def test_scope_lookup_with_run_command(self):
"""Test scope lookup of functions in lldb."""
self.build()
self.runCmd("file " + self.getBuildArtifact("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 " + self.getBuildArtifact("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")
@skipIfWindows # This is flakey on Windows: llvm.org/pr38373
def test_file_scope_lookup_with_run_command(self):
"""Test file scope lookup in lldb."""
self.build()
self.runCmd("file " + self.getBuildArtifact("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")
@skipIfWindows # This is flakey on Windows: llvm.org/pr38373
def test_scope_lookup_before_using_with_run_command(self):
"""Test scope lookup before using in lldb."""
self.build()
self.runCmd("file " + self.getBuildArtifact("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
# entries in DWARF - may need to add checks for compiler versions here.
@skipIf(
compiler="gcc",
oslist=["linux"],
debug_info=["dwo"]) # Skip to avoid crash
@expectedFailureAll(
oslist=["freebsd"],
bugnumber="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 " + self.getBuildArtifact("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 " + self.getBuildArtifact("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 " + self.getBuildArtifact("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")
@expectedFailureAll(
oslist=["freebsd"],
bugnumber="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 " + self.getBuildArtifact("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")
|