[Lldb-commits] [lldb] [LLDB] Add DIL code for handling plain variable names. (PR #120971)

[Pavel Labath via lldb-commits]

================
@@ -0,0 +1,64 @@
+"""
+Make sure 'frame var' using DIL parser/evaultor works for local variables.
+"""
+
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+from lldbsuite.test import lldbutil
+
+import os
+import shutil
+import time
+
+
+class TestFrameVarDILLocalVars(TestBase):
+    # If your test case doesn't stress debug info, then
+    # set this to true.  That way it won't be run once for
+    # each debug info format.
+    NO_DEBUG_INFO_TESTCASE = True
+
+    def test_frame_var(self):
+        self.build()
+        self.do_test()
+
+    def do_test(self):
+        target = self.createTestTarget()
+
+        # Now create a breakpoint in main.c at the source matching
+        # "Set a breakpoint here"
+        breakpoint = target.BreakpointCreateBySourceRegex(
+            "Set a breakpoint here", lldb.SBFileSpec("main.cpp")
+        )
+        self.assertTrue(
+            breakpoint and breakpoint.GetNumLocations() >= 1, VALID_BREAKPOINT
+        )
+
+        error = lldb.SBError()
+        # This is the launch info.  If you want to launch with arguments or
+        # environment variables, add them using SetArguments or
+        # SetEnvironmentEntries
+
+        launch_info = target.GetLaunchInfo()
+        process = target.Launch(launch_info, error)
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        # Did we hit our breakpoint?
+        from lldbsuite.test.lldbutil import get_threads_stopped_at_breakpoint
+
+        threads = get_threads_stopped_at_breakpoint(process, breakpoint)
+        self.assertEqual(
+            len(threads), 1, "There should be a thread stopped at our breakpoint"
+        )
+        # The hit count for the breakpoint should be 1.
+        self.assertEqual(breakpoint.GetHitCount(), 1)
+
+        frame = threads[0].GetFrameAtIndex(0)
+        command_result = lldb.SBCommandReturnObject()
+        interp = self.dbg.GetCommandInterpreter()
+
+        self.expect("settings set target.experimental.use-DIL true", substrs=[""])
+        self.expect("frame variable a", substrs=["1"])
+        self.expect("frame variable b", substrs=["2"])
+        self.expect("frame variable c", substrs=["\\xfd"])
+        self.expect("frame variable s", substrs=["4"])
----------------
labath wrote:

It definitely works in other tests. What was the failure message? It's possible the expectation needs to be tweaked a bit.

https://github.com/llvm/llvm-project/pull/120971