[ASTImporter] Regression test to ensure that we handling importing of anonymous enums correctly

Summary:
https://reviews.llvm.org/D51633 added error handling in the ASTImporter.cpp which uncovered an underlying bug in which we used the wrong name when handling naming conflicts. This could cause a segmentation fault when attempting to cast an int to an enum during expression parsing.

This test should pass once https://reviews.llvm.org/D59665 is committed.

Differential Revision: https://reviews.llvm.org/D59667

llvm-svn: 358462

3 files changed, 36 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/Makefile b/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/Makefile
new file mode 100644
index 00000000000..8a7102e347a
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/TestCastIntToAnonymousEnum.py b/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/TestCastIntToAnonymousEnum.py
new file mode 100644
index 00000000000..b8eaf51d3e2
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/TestCastIntToAnonymousEnum.py
@@ -0,0 +1,22 @@
+"""
+Test Expression Parser regression text to ensure that we handle anonymous
+enums importing correctly.
+"""
+
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+class TestCastIntToAnonymousEnum(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def test_cast_int_to_anonymous_enum(self):
+        self.build()
+
+        lldbutil.run_to_source_breakpoint(self, '// break here',
+                lldb.SBFileSpec("main.cpp", False))
+
+        self.expect("expr (flow_e)0", substrs=['(flow_e) $0 = A'])
diff --git a/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/main.cpp b/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/main.cpp
new file mode 100644
index 00000000000..7b5c5b24362
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/expression_command/cast_int_to_anonymous_enum/main.cpp
@@ -0,0 +1,9 @@
+typedef enum {
+    A=0,
+} flow_e;
+
+int main() {
+   flow_e f;
+
+   return 0; // break here
+}