If a hand-called function is interrupted by hitting a breakpoint, then

when you continue to finish off the function call, the expression result
will be included as part of the thread stop info.

llvm-svn: 212506

1 files changed, 59 insertions, 0 deletions

diff --git a/lldb/test/expression_command/call-function/TestCallStopAndContinue.py b/lldb/test/expression_command/call-function/TestCallStopAndContinue.py
new file mode 100644
index 00000000000..3398c94e8be
--- /dev/null
+++ b/lldb/test/expression_command/call-function/TestCallStopAndContinue.py
@@ -0,0 +1,59 @@
+"""
+Test calling a function, stopping in the call, continue and gather the result on stop.
+"""
+
+import unittest2
+import lldb
+import lldbutil
+from lldbtest import *
+
+class ExprCommandCallStopContinueTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break for main.c.
+        self.line = line_number('main.cpp',
+                                '// Please test these expressions while stopped at this line:')
+        self.func_line = line_number ('main.cpp', 
+                                '{ 5, "five" }')
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    @dsym_test
+    def test_with_dsym(self):
+        """Test gathering result from interrupted function call."""
+        self.buildDsym()
+        self.call_function()
+
+    @dwarf_test
+    def test_with_dwarf(self):
+        """Test gathering result from interrupted function call."""
+        self.buildDwarf()
+        self.call_function()
+
+    def call_function(self):
+        """Test gathering result from interrupted function call."""
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+
+        # Some versions of GCC encode two locations for the 'return' statement in main.cpp
+        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.func_line, num_expected_locations=-1, loc_exact=True)
+        
+        self.expect("expr -i false -- returnsFive()", error=True,
+            substrs = ['Execution was interrupted, reason: breakpoint'])
+
+        self.runCmd("continue", "Continue completed")
+        self.expect ("thread list",
+                     substrs = ['stop reason = User Expression thread plan',
+                                r'Completed expression: (Five) $0 = (number = 5, name = "five")'])
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()