[lldb/API] Add SBCompileUnit::GetIndexForLineEntry method to SB API

This patch adds a new `GetIndexForLineEntry` method to the `SBCompileUnit`
class. As the name suggests, given an `SBLineEntry` object, this will
return the line entry index within a specific compile unit.

This method can take a `exact` boolean that will make sure that the
provided line entry matches perfectly another line entry in the compile unit.

rdar://47450887

Differention Revision: https://reviews.llvm.org/D125437

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/lldb/test/API/python_api/compile_unit/TestCompileUnitAPI.py b/lldb/test/API/python_api/compile_unit/TestCompileUnitAPI.py
new file mode 100644
index 000000000000..2c4ebf7982d9
--- /dev/null
+++ b/lldb/test/API/python_api/compile_unit/TestCompileUnitAPI.py
@@ -0,0 +1,44 @@
+"""
+Test SBCompileUnit APIs.
+"""
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class CompileUnitAPITestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        TestBase.setUp(self)
+
+    def test(self):
+        """Exercise some SBCompileUnit APIs."""
+        self.build()
+
+        (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self, 'break here', lldb.SBFileSpec('main.c'))
+        self.assertTrue(target, VALID_TARGET)
+        self.assertTrue(process, PROCESS_IS_VALID)
+        self.assertTrue(bkpt and bkpt.GetNumLocations() == 1,
+                        VALID_BREAKPOINT)
+
+        self.assertTrue(
+            thread.IsValid(),
+            "There should be a thread stopped due to breakpoint condition")
+        frame0 = thread.GetFrameAtIndex(0)
+        line_entry = frame0.GetLineEntry()
+
+        sc_list = target.FindCompileUnits(line_entry.GetFileSpec())
+        self.assertGreater(sc_list.GetSize(), 0)
+
+        main_cu = sc_list.compile_units[0]
+        self.assertTrue(main_cu.IsValid(), "Main executable CU is not valid")
+
+        self.assertEqual(main_cu.GetIndexForLineEntry(line_entry, True),
+                         main_cu.FindLineEntryIndex(0, line_entry.GetLine(),
+                                   line_entry.GetFileSpec(), True))
+
+