Add support for seeing through clang::AutoType in ClangASTContext

This allows LLDB to deal correctly with expression result variables declared via the C++11 'auto' keyword

rdar://problem/23960490

llvm-svn: 256051

3 files changed, 45 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/Makefile b/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/Makefile
new file mode 100644
index 00000000000..314f1cb2f07
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/TestCPPAuto.py b/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/TestCPPAuto.py
new file mode 100644
index 00000000000..e3f7fb1618a
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/TestCPPAuto.py
@@ -0,0 +1,24 @@
+"""
+Tests that auto types work
+"""
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class CPPAutoTestCase(TestBase):
+    
+    mydir = TestBase.compute_mydir(__file__)
+    
+    def test_with_run_command(self):
+        """Test that auto types work in the expression parser"""
+        self.build()
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+
+        line = line_number('main.cpp', '// break here')
+        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", line, num_expected_locations=-1, loc_exact=False)
+
+        self.runCmd("process launch", RUN_SUCCEEDED)
+
+        self.expect('expr auto f = 123456; f', substrs=['int', '123456'])
+        self.expect('expr struct Test { int x; int y; Test() : x(123), y(456) {} }; auto t = Test(); t', substrs=['Test', '123', '456'])
+        self.expect('expr auto s = helloworld; s', substrs=['string', 'hello world'])
diff --git a/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/main.cpp b/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/main.cpp
new file mode 100644
index 00000000000..76fb95e0a34
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/lang/cpp/auto/main.cpp
@@ -0,0 +1,16 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <string>
+
+int main()
+{
+  std::string helloworld("hello world");
+  return 0; // break here
+}