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https://github.com/Gericom/teak-llvm.git
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cdc38c93fa
The function call and the constructor call fail now several Linux bots (Swift CI, my own bot and Stella's Debian system), so let's disable the relevant test parts until we can figure out why it is failing.
83 lines
3.0 KiB
Python
83 lines
3.0 KiB
Python
"""
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Test calling an overriden method.
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Note:
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This verifies that LLDB is correctly building the method overrides table.
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If this table is not built correctly then calls to overridden methods in
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derived classes may generate references to non-existant vtable entries,
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as the compiler treats the overridden method as a totally new virtual
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method definition.
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<rdar://problem/14205774>
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ExprCommandCallOverriddenMethod(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break for main.c.
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self.line = line_number('main.cpp', '// Set breakpoint here')
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def test_call_on_base(self):
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"""Test calls to overridden methods in derived classes."""
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self.build()
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# Set breakpoint in main and run exe
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self.runCmd("file " + self.getBuildArtifact("a.out"),
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CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Test call to method in base class (this should always work as the base
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# class method is never an override).
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self.expect("expr b->foo()", substrs=["2"])
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# Test calling the base class.
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self.expect("expr realbase.foo()", substrs=["1"])
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@skipIfLinux # Returns wrong result code on some platforms.
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def test_call_on_derived(self):
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"""Test calls to overridden methods in derived classes."""
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self.build()
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# Set breakpoint in main and run exe
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self.runCmd("file " + self.getBuildArtifact("a.out"),
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CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Test call to overridden method in derived class (this will fail if the
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# overrides table is not correctly set up, as Derived::foo will be assigned
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# a vtable entry that does not exist in the compiled program).
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self.expect("expr d.foo()", substrs=["2"])
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@skipIfLinux # Calling constructor causes SIGABRT
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@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr43707")
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def test_call_on_temporary(self):
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"""Test calls to overridden methods in derived classes."""
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self.build()
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# Set breakpoint in main and run exe
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self.runCmd("file " + self.getBuildArtifact("a.out"),
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CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Test with locally constructed instances.
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self.expect("expr Base().foo()", substrs=["1"])
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self.expect("expr Derived().foo()", substrs=["2"])
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