Files
clang-p2996/lldb/source/Symbol/ClangExternalASTSourceCallbacks.cpp
Greg Clayton a2721476e7 This commit adds broad architectural support for hierarchical
inspection of namespaces in the expression parser.

ClangExpressionDeclMap hitherto reported that namespaces had
been completely imported, even though the namespaces are
returned empty.  To deal with this situation, ClangASTSource
was recently extended with an API to complete incomplete type
definitions, and, for greater efficiency, to complete these
definitions partially, returning only those objects that have
a given name.

This commit supports these APIs on LLDB's side, and uses it
to provide information on types resident in namespaces.
Namespaces are now imported as they were -- that is to say,
empty -- but with minimal import mode on.  This means that
Clang will come back and request their contents by name as
needed.  We now respond with information on the contained
types; this will be followed soon by information on functions
and variables.

llvm-svn: 133852
2011-06-25 00:44:06 +00:00

137 lines
5.8 KiB
C++

//===-- ClangExternalASTSourceCallbacks.cpp ---------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Clang headers like to use NDEBUG inside of them to enable/disable debug
// releated features using "#ifndef NDEBUG" preprocessor blocks to do one thing
// or another. This is bad because it means that if clang was built in release
// mode, it assumes that you are building in release mode which is not always
// the case. You can end up with functions that are defined as empty in header
// files when NDEBUG is not defined, and this can cause link errors with the
// clang .a files that you have since you might be missing functions in the .a
// file. So we have to define NDEBUG when including clang headers to avoid any
// mismatches. This is covered by rdar://problem/8691220
#ifndef NDEBUG
#define LLDB_DEFINED_NDEBUG_FOR_CLANG
#define NDEBUG
// Need to include assert.h so it is as clang would expect it to be (disabled)
#include <assert.h>
#endif
#include "clang/AST/DeclBase.h"
#include "clang/AST/DeclarationName.h"
#ifdef LLDB_DEFINED_NDEBUG_FOR_CLANG
#undef NDEBUG
#undef LLDB_DEFINED_NDEBUG_FOR_CLANG
// Need to re-include assert.h so it is as _we_ would expect it to be (enabled)
#include <assert.h>
#endif
#include "lldb/Core/Log.h"
using namespace clang;
using namespace lldb_private;
clang::DeclContextLookupResult
ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName
(
const clang::DeclContext *decl_ctx,
clang::DeclarationName clang_decl_name
)
{
if (m_callback_find_by_name)
{
llvm::SmallVector <clang::NamedDecl *, 3> results;
m_callback_find_by_name (m_callback_baton, decl_ctx, clang_decl_name, &results);
DeclContextLookupResult lookup_result (SetExternalVisibleDeclsForName(decl_ctx, clang_decl_name, results));
return lookup_result;
}
std::string decl_name (clang_decl_name.getAsString());
switch (clang_decl_name.getNameKind()) {
// Normal identifiers.
case clang::DeclarationName::Identifier:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"Identifier\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
if (clang_decl_name.getAsIdentifierInfo()->getBuiltinID() != 0)
return SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
break;
case clang::DeclarationName::ObjCZeroArgSelector:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCZeroArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::ObjCOneArgSelector:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCOneArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::ObjCMultiArgSelector:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"ObjCMultiArgSelector\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::CXXConstructorName:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXConstructorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::CXXDestructorName:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXDestructorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::CXXConversionFunctionName:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXConversionFunctionName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::CXXOperatorName:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXOperatorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::CXXLiteralOperatorName:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXLiteralOperatorName\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return DeclContext::lookup_result();
break;
case clang::DeclarationName::CXXUsingDirective:
//printf ("ClangExternalASTSourceCallbacks::FindExternalVisibleDeclsByName(decl_ctx = %p, decl_name = { kind = \"CXXUsingDirective\", name = \"%s\")\n", decl_ctx, decl_name.c_str());
return SetNoExternalVisibleDeclsForName(decl_ctx, clang_decl_name);
}
return DeclContext::lookup_result();
}
void
ClangExternalASTSourceCallbacks::CompleteType (TagDecl *tag_decl)
{
if (m_callback_tag_decl)
m_callback_tag_decl (m_callback_baton, tag_decl);
}
void
ClangExternalASTSourceCallbacks::CompleteType (ObjCInterfaceDecl *objc_decl)
{
if (m_callback_objc_decl)
m_callback_objc_decl (m_callback_baton, objc_decl);
}