[Lldb-commits] [lldb] r217701 - 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
Enrico Granata
egranata at apple.com
Fri Sep 12 11:45:44 PDT 2014
Author: enrico
Date: Fri Sep 12 13:45:43 2014
New Revision: 217701
URL: http://llvm.org/viewvc/llvm-project?rev=217701&view=rev
Log:
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
Added:
lldb/trunk/test/python_api/class_members/
lldb/trunk/test/python_api/class_members/Makefile
lldb/trunk/test/python_api/class_members/TestSBTypeClassMembers.py
lldb/trunk/test/python_api/class_members/main.cpp
Modified:
lldb/trunk/include/lldb/API/SBType.h
lldb/trunk/include/lldb/Symbol/ClangASTType.h
lldb/trunk/scripts/Python/interface/SBType.i
lldb/trunk/source/API/SBType.cpp
lldb/trunk/source/Symbol/ClangASTType.cpp
Modified: lldb/trunk/include/lldb/API/SBType.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/API/SBType.h?rev=217701&r1=217700&r2=217701&view=diff
==============================================================================
--- lldb/trunk/include/lldb/API/SBType.h (original)
+++ lldb/trunk/include/lldb/API/SBType.h Fri Sep 12 13:45:43 2014
@@ -160,6 +160,12 @@ public:
lldb::SBTypeList
GetFunctionArgumentTypes ();
+
+ uint32_t
+ GetNumberOfMemberFunctions ();
+
+ lldb::SBType
+ GetMemberFunctionAtIndex (uint32_t idx);
const char*
GetName();
Modified: lldb/trunk/include/lldb/Symbol/ClangASTType.h
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/include/lldb/Symbol/ClangASTType.h?rev=217701&r1=217700&r2=217701&view=diff
==============================================================================
--- lldb/trunk/include/lldb/Symbol/ClangASTType.h (original)
+++ lldb/trunk/include/lldb/Symbol/ClangASTType.h Fri Sep 12 13:45:43 2014
@@ -334,6 +334,12 @@ public:
ClangASTType
GetFunctionReturnType () const;
+ size_t
+ GetNumMemberFunctions () const;
+
+ ClangASTType
+ GetMemberFunctionAtIndex (size_t idx);
+
ClangASTType
GetLValueReferenceType () const;
Modified: lldb/trunk/scripts/Python/interface/SBType.i
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/scripts/Python/interface/SBType.i?rev=217701&r1=217700&r2=217701&view=diff
==============================================================================
--- lldb/trunk/scripts/Python/interface/SBType.i (original)
+++ lldb/trunk/scripts/Python/interface/SBType.i Fri Sep 12 13:45:43 2014
@@ -239,6 +239,12 @@ public:
lldb::SBTypeList
GetFunctionArgumentTypes ();
+
+ uint32_t
+ GetNumberOfMemberFunctions ();
+
+ lldb::SBType
+ GetMemberFunctionAtIndex (uint32_t idx);
bool
IsTypeComplete ();
Modified: lldb/trunk/source/API/SBType.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/API/SBType.cpp?rev=217701&r1=217700&r2=217701&view=diff
==============================================================================
--- lldb/trunk/source/API/SBType.cpp (original)
+++ lldb/trunk/source/API/SBType.cpp Fri Sep 12 13:45:43 2014
@@ -252,6 +252,28 @@ SBType::GetFunctionArgumentTypes ()
return sb_type_list;
}
+uint32_t
+SBType::GetNumberOfMemberFunctions ()
+{
+ if (IsValid())
+ {
+ return m_opaque_sp->GetClangASTType(true).GetNumMemberFunctions();
+ }
+ return 0;
+}
+
+lldb::SBType
+SBType::GetMemberFunctionAtIndex (uint32_t idx)
+{
+ SBType sb_func_type;
+ if (IsValid())
+ {
+ ClangASTType func_type(m_opaque_sp->GetClangASTType(true).GetMemberFunctionAtIndex(idx));
+ sb_func_type = SBType(func_type);
+ }
+ return sb_func_type;
+}
+
lldb::SBType
SBType::GetUnqualifiedType()
{
Modified: lldb/trunk/source/Symbol/ClangASTType.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/source/Symbol/ClangASTType.cpp?rev=217701&r1=217700&r2=217701&view=diff
==============================================================================
--- lldb/trunk/source/Symbol/ClangASTType.cpp (original)
+++ lldb/trunk/source/Symbol/ClangASTType.cpp Fri Sep 12 13:45:43 2014
@@ -47,6 +47,7 @@
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Target/Process.h"
+#include <iterator>
#include <mutex>
using namespace lldb;
@@ -1741,6 +1742,68 @@ ClangASTType::GetFunctionReturnType () c
return ClangASTType();
}
+size_t
+ClangASTType::GetNumMemberFunctions () const
+{
+ size_t num_functions = 0;
+ if (IsValid())
+ {
+ clang::QualType qual_type(GetCanonicalQualType());
+ switch (qual_type->getTypeClass()) {
+ case clang::Type::Record:
+ if (GetCompleteQualType (m_ast, qual_type))
+ {
+ const clang::RecordType *record_type = llvm::cast<clang::RecordType>(qual_type.getTypePtr());
+ const clang::RecordDecl *record_decl = record_type->getDecl();
+ assert(record_decl);
+ const clang::CXXRecordDecl *cxx_record_decl = llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
+ if (cxx_record_decl)
+ num_functions = std::distance(cxx_record_decl->method_begin(), cxx_record_decl->method_end());
+ break;
+ }
+
+ default:
+ break;
+ }
+ }
+ return num_functions;
+}
+
+ClangASTType
+ClangASTType::GetMemberFunctionAtIndex (size_t idx)
+{
+ if (IsValid())
+ {
+ clang::QualType qual_type(GetCanonicalQualType());
+ switch (qual_type->getTypeClass()) {
+ case clang::Type::Record:
+ if (GetCompleteQualType (m_ast, qual_type))
+ {
+ const clang::RecordType *record_type = llvm::cast<clang::RecordType>(qual_type.getTypePtr());
+ const clang::RecordDecl *record_decl = record_type->getDecl();
+ assert(record_decl);
+ const clang::CXXRecordDecl *cxx_record_decl = llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
+ if (cxx_record_decl)
+ {
+ auto method_iter = cxx_record_decl->method_begin();
+ auto method_end = cxx_record_decl->method_end();
+ if (idx < std::distance(method_iter, method_end))
+ {
+ std::advance(method_iter, idx);
+ auto method_decl = method_iter->getCanonicalDecl();
+ if (method_decl)
+ return ClangASTType(m_ast,method_decl->getType().getAsOpaquePtr());
+ }
+ }
+ }
+
+ default:
+ break;
+ }
+ }
+
+ return ClangASTType();
+}
ClangASTType
ClangASTType::GetLValueReferenceType () const
Added: lldb/trunk/test/python_api/class_members/Makefile
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/python_api/class_members/Makefile?rev=217701&view=auto
==============================================================================
--- lldb/trunk/test/python_api/class_members/Makefile (added)
+++ lldb/trunk/test/python_api/class_members/Makefile Fri Sep 12 13:45:43 2014
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
Added: lldb/trunk/test/python_api/class_members/TestSBTypeClassMembers.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/python_api/class_members/TestSBTypeClassMembers.py?rev=217701&view=auto
==============================================================================
--- lldb/trunk/test/python_api/class_members/TestSBTypeClassMembers.py (added)
+++ lldb/trunk/test/python_api/class_members/TestSBTypeClassMembers.py Fri Sep 12 13:45:43 2014
@@ -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()
Added: lldb/trunk/test/python_api/class_members/main.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/python_api/class_members/main.cpp?rev=217701&view=auto
==============================================================================
--- lldb/trunk/test/python_api/class_members/main.cpp (added)
+++ lldb/trunk/test/python_api/class_members/main.cpp Fri Sep 12 13:45:43 2014
@@ -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
+}
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