Python synthetic children:

 - you can now define a Python class as a synthetic children producer for a type
   the class must adhere to this "interface":
        def __init__(self, valobj, dict):
     	def get_child_at_index(self, index):
     	def get_child_index(self, name):
   then using type synth add -l className typeName
   (e.g. type synth add -l fooSynthProvider foo)
   (This is still WIP with lots to be added)
   A small test case is available also as reference

llvm-svn: 135865

4 files changed, 169 insertions, 0 deletions

diff --git a/lldb/test/functionalities/data-formatter/data-formatter-python-synth/Makefile b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/Makefile
new file mode 100644
index 00000000000..314f1cb2f07
--- /dev/null
+++ b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/test/functionalities/data-formatter/data-formatter-python-synth/TestDataFormatterPythonSynth.py b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/TestDataFormatterPythonSynth.py
new file mode 100644
index 00000000000..59f02086cc5
--- /dev/null
+++ b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/TestDataFormatterPythonSynth.py
@@ -0,0 +1,95 @@
+"""
+Test lldb data formatter subsystem.
+"""
+
+import os, time
+import unittest2
+import lldb
+from lldbtest import *
+
+class DataFormatterTestCase(TestBase):
+
+    mydir = os.path.join("functionalities", "data-formatter", "data-formatter-python-synth")
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    def test_with_dsym_and_run_command(self):
+        """Test data formatter commands."""
+        self.buildDsym()
+        self.data_formatter_commands()
+
+    def test_with_dwarf_and_run_command(self):
+        """Test data formatter commands."""
+        self.buildDwarf()
+        self.data_formatter_commands()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break at.
+        self.line = line_number('main.cpp', '// Set break point at this line.')
+
+    def data_formatter_commands(self):
+        """Test that that file and class static variables display correctly."""
+        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+
+        self.expect("breakpoint set -f main.cpp -l %d" % self.line,
+                    BREAKPOINT_CREATED,
+            startstr = "Breakpoint created: 1: file ='main.cpp', line = %d, locations = 1" %
+                        self.line)
+
+        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'])
+
+        # This is the function to remove the custom formats in order to have a
+        # clean slate for the next test case.
+        def cleanup():
+            self.runCmd('type format clear', check=False)
+            self.runCmd('type summary clear', check=False)
+            self.runCmd('type synth clear', check=False)
+
+        # Execute the cleanup function during test case tear down.
+        self.addTearDownHook(cleanup)
+
+        # print the f00_1 variable without a synth
+        self.expect("frame variable f00_1",
+            substrs = ['a = 0',
+                       'b = 1',
+                       'r = 33']);
+
+        # now set up the synth
+        self.runCmd("script from fooSynthProvider import *")
+        self.runCmd("type synth add -l fooSynthProvider foo")
+
+        # check that we get only the two variables
+        self.expect("frame variable f00_1",
+                    substrs = ['r = 33',
+                               'a = 0']);
+
+        # check that we do not get the extra vars and that we cache results
+        self.expect("frame variable f00_1", matching=False,
+                    substrs = ['looking for',
+                               'b = 1']);
+
+        # check that the caching does not span beyond the stopoint
+        self.runCmd("n")
+
+        self.expect("frame variable f00_1",
+                    substrs = ['r = 33',
+                               'a = 1']);
+
+        # delete the synth and check that we get good output
+        self.runCmd("type synth delete foo")
+        self.expect("frame variable f00_1",
+                    substrs = ['a = 1',
+                               'b = 1',
+                               'r = 33']);
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()
diff --git a/lldb/test/functionalities/data-formatter/data-formatter-python-synth/fooSynthProvider.py b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/fooSynthProvider.py
new file mode 100644
index 00000000000..add34074fb0
--- /dev/null
+++ b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/fooSynthProvider.py
@@ -0,0 +1,16 @@
+class fooSynthProvider:
+     def __init__(self, valobj, dict):
+         self.valobj = valobj;
+     def num_children(self):
+         return 2;
+     def get_child_at_index(self, index):
+         if index == 1:
+             child = self.valobj.GetChildMemberWithName('a');
+         else:
+             child = self.valobj.GetChildMemberWithName('r');
+         return child;
+     def get_child_index(self, name):
+         if name == 'a':
+             return 1;
+         else:
+             return 0;
\ No newline at end of file
diff --git a/lldb/test/functionalities/data-formatter/data-formatter-python-synth/main.cpp b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/main.cpp
new file mode 100644
index 00000000000..b541aa0bf9c
--- /dev/null
+++ b/lldb/test/functionalities/data-formatter/data-formatter-python-synth/main.cpp
@@ -0,0 +1,53 @@
+struct foo
+{
+    int a;
+    int b;
+    int c;
+    int d;
+    int e;
+    int f;
+    int g;
+    int h;
+    int i;
+    int j;
+    int k;
+    int l;
+    int m;
+    int n;
+    int o;
+    int p;
+    int q;
+    int r;
+    
+    foo(int X) :
+    a(X),
+    b(X+1),
+    c(X+3),
+    d(X+5),
+    e(X+7),
+    f(X+9),
+    g(X+11),
+    h(X+13),
+    i(X+15),
+    j(X+17),
+    k(X+19),
+    l(X+21),
+    m(X+23),
+    n(X+25),
+    o(X+27),
+    p(X+29),
+    q(X+31),
+    r(X+33) {}
+};
+
+int main()
+{
+    foo f00_1(0);
+    foo f00_2(6);
+    foo *f00_3 = new foo(12);
+    foo& f00_4 = *(new foo(18));
+    
+    f00_1.a++; // Set break point at this line.
+    
+    return 0;
+}
\ No newline at end of file