Add logic to LLDB to figure out the types of member functions of C++ classes. Add plumbing for that all the way up to the SB layer

llvm-svn: 217701

3 files changed, 114 insertions, 0 deletions

diff --git a/lldb/test/python_api/class_members/Makefile b/lldb/test/python_api/class_members/Makefile
new file mode 100644
index 00000000000..8a7102e347a
--- /dev/null
+++ b/lldb/test/python_api/class_members/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/test/python_api/class_members/TestSBTypeClassMembers.py b/lldb/test/python_api/class_members/TestSBTypeClassMembers.py
new file mode 100644
index 00000000000..e286df9d57a
--- /dev/null
+++ b/lldb/test/python_api/class_members/TestSBTypeClassMembers.py
@@ -0,0 +1,81 @@
+"""
+Test SBType and SBTypeList API.
+"""
+
+import os, time
+import re
+import unittest2
+import lldb, lldbutil
+from lldbtest import *
+
+class TypeAndTypeListTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    @python_api_test
+    @dsym_test
+    def test_with_dsym(self):
+        """Exercise SBType and SBTypeList API."""
+        d = {'EXE': self.exe_name}
+        self.buildDsym(dictionary=d)
+        self.setTearDownCleanup(dictionary=d)
+        self.type_api(self.exe_name)
+
+    @python_api_test
+    @dwarf_test
+    def test_with_dwarf(self):
+        """Exercise SBType and SBTypeList API."""
+        d = {'EXE': self.exe_name}
+        self.buildDwarf(dictionary=d)
+        self.setTearDownCleanup(dictionary=d)
+        self.type_api(self.exe_name)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # We'll use the test method name as the exe_name.
+        self.exe_name = self.testMethodName
+        # Find the line number to break at.
+        self.source = 'main.cpp'
+        self.line = line_number(self.source, '// set breakpoint here')
+
+    def type_api(self, exe_name):
+        """Exercise SBType and SBTypeList API."""
+        exe = os.path.join(os.getcwd(), exe_name)
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # Create the breakpoint inside function 'main'.
+        breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
+        self.assertTrue(breakpoint, VALID_BREAKPOINT)
+
+        # Now launch the process, and do not stop at entry point.
+        process = target.LaunchSimple (None, None, self.get_process_working_directory())
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        # Get Frame #0.
+        self.assertTrue(process.GetState() == lldb.eStateStopped)
+        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
+        self.assertTrue(thread.IsValid(), "There should be a thread stopped due to breakpoint condition")
+        frame0 = thread.GetFrameAtIndex(0)
+        
+        variable = frame0.FindVariable("d")
+        Derived = variable.GetType()
+        Base = Derived.GetDirectBaseClassAtIndex(0).GetType()
+
+        self.assertTrue(Derived.GetNumberOfMemberFunctions() == 2, "Derived declares two methods")
+        self.assertTrue(Derived.GetMemberFunctionAtIndex(0).GetFunctionReturnType().GetName() == "int", "Derived::dImpl returns int")
+        
+        self.assertTrue(Base.GetNumberOfMemberFunctions() == 4, "Base declares three methods")
+        self.assertTrue(Base.GetMemberFunctionAtIndex(3).GetFunctionArgumentTypes().GetSize() == 3, "Base::sfunc takes three arguments")
+        self.assertTrue(Base.GetMemberFunctionAtIndex(2).GetFunctionArgumentTypes().GetSize() == 0, "Base::dat takes no arguments")
+        self.assertTrue(Base.GetMemberFunctionAtIndex(1).GetFunctionArgumentTypes().GetTypeAtIndex(1).GetName() == "char", "Base::bar takes a second 'char' argument")
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()
diff --git a/lldb/test/python_api/class_members/main.cpp b/lldb/test/python_api/class_members/main.cpp
new file mode 100644
index 00000000000..86392a219cc
--- /dev/null
+++ b/lldb/test/python_api/class_members/main.cpp
@@ -0,0 +1,28 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+class Base {
+public:
+    int foo(int x, int y) { return 1; }
+    char bar(int x, char y) { return 2; }
+    void dat() {}
+    static int sfunc(char, int, float) { return 3; }
+};
+
+class Derived: public Base {
+protected:
+    int dImpl() { return 1; }
+public:
+    float baz(float b) { return b + 1.0; }
+};
+
+int main() {
+    Derived d;
+    return 0; // set breakpoint here
+}