when typing a summary string you can use the %S symbol to explicitly indicate that you want the summary to be used to print the target object

 (e.g. ${var%S}). this might already be the default if your variable is of an aggregate type
new feature: synthetic filters. you can restrict the number of children for your variables to only a meaningful subset
 - the restricted list of children obeys the typical rules (e.g. summaries prevail over children)
 - one-line summaries show only the filtered (synthetic) children, if you type an expanded summary string, or you use Python scripts, all the real children are accessible
 - to provide a synthetic children list use the "type synth add" command, as in:
   type synth add foo_type --child varA --child varB[0] --child varC->packet->flags[1-4]
   (you can use ., ->, single-item array operator [N] and bitfield operator [N-M]; array slice access is not supported, giving simplified names to expression paths is not supported)
 - a new -S option to frame variable and target variable lets you override synthetic children and instead show real ones

llvm-svn: 135731

1 files changed, 18 insertions, 0 deletions

diff --git a/lldb/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py b/lldb/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py
index f5a206b39f4..97aae5c8e1c 100644
--- a/lldb/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py
+++ b/lldb/test/functionalities/data-formatter/data-formatter-cpp/TestDataFormatterCpp.py
@@ -182,7 +182,25 @@ class DataFormatterTestCase(TestBase):
         self.expect("frame variable cool_pointer",
             substrs = ['3,0,0'])
 
+        # test special symbols for formatting variables into summaries
+        self.runCmd("type summary add -f \"cool object @ ${var%L}\" i_am_cool")
+        self.runCmd("type summary delete \"i_am_cool [5]\"")
         
+        # this test might fail if the compiler tries to store
+        # these values into registers.. hopefully this is not
+        # going to be the case
+        self.expect("frame variable cool_array",
+            substrs = ['[0] = cool object @ 0x',
+                       '[1] = cool object @ 0x',
+                       '[2] = cool object @ 0x',
+                       '[3] = cool object @ 0x',
+                       '[4] = cool object @ 0x'])
+            
+        self.runCmd("type summary add -f \"goofy\" i_am_cool")
+        self.runCmd("type summary add -f \"${var.second_cool%S}\" i_am_cooler")
+
+        self.expect("frame variable the_coolest_guy",
+            substrs = ['(i_am_cooler) the_coolest_guy = goofy'])
 
 if __name__ == '__main__':
     import atexit