1 files changed, 47 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/lang/c/forward/TestForwardDeclaration.py b/packages/Python/lldbsuite/test/lang/c/forward/TestForwardDeclaration.py
new file mode 100644
index 000000000000..33c0de2d72d3
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/c/forward/TestForwardDeclaration.py
@@ -0,0 +1,47 @@
+"""Test that forward declaration of a data structure gets resolved correctly."""
+
+from __future__ import print_function
+
+
+
+import os, time
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class ForwardDeclarationTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def test_and_run_command(self):
+        """Display *bar_ptr when stopped on a function with forward declaration of struct bar."""
+        self.build()
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+
+        # Break inside the foo function which takes a bar_ptr argument.
+        lldbutil.run_break_set_by_symbol (self, "foo", num_expected_locations=1, sym_exact=True)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # The stop reason of the thread should be breakpoint.
+        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+            substrs = ['stopped',
+                       'stop reason = breakpoint'])
+
+        # The breakpoint should have a hit count of 1.
+        self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
+            substrs = [' resolved, hit count = 1'])
+
+        # This should display correctly.
+        # Note that the member fields of a = 1 and b = 2 is by design.
+        self.expect("frame variable --show-types *bar_ptr", VARIABLES_DISPLAYED_CORRECTLY,
+            substrs = ['(bar) *bar_ptr = ',
+                       '(int) a = 1',
+                       '(int) b = 2'])
+
+        # And so should this.
+        self.expect("expression --show-types -- *bar_ptr", VARIABLES_DISPLAYED_CORRECTLY,
+            substrs = ['(bar)',
+                       '(int) a = 1',
+                       '(int) b = 2'])