forked from OSchip/llvm-project
68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
//===- CIndexInclusionStack.cpp - Clang-C Source Indexing Library ---------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines a callback mechanism for clients to get the inclusion
|
|
// stack from a translation unit.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "CIndexer.h"
|
|
#include "CXSourceLocation.h"
|
|
#include "clang/AST/DeclVisitor.h"
|
|
#include "clang/Frontend/ASTUnit.h"
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
using namespace clang;
|
|
|
|
extern "C" {
|
|
void clang_getInclusions(CXTranslationUnit TU, CXInclusionVisitor CB,
|
|
CXClientData clientData) {
|
|
|
|
ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU);
|
|
SourceManager &SM = CXXUnit->getSourceManager();
|
|
ASTContext &Ctx = CXXUnit->getASTContext();
|
|
|
|
llvm::SmallVector<CXSourceLocation, 10> InclusionStack;
|
|
unsigned i = SM.sloc_loaded_entry_size();
|
|
unsigned n = SM.sloc_entry_size();
|
|
|
|
// In the case where all the SLocEntries are in an external source, traverse
|
|
// those SLocEntries as well. This is the case where we are looking
|
|
// at the inclusion stack of an AST/PCH file.
|
|
if (i >= n)
|
|
i = 0;
|
|
|
|
for ( ; i < n ; ++i) {
|
|
|
|
const SrcMgr::SLocEntry &SL = SM.getSLocEntry(i);
|
|
|
|
if (!SL.isFile())
|
|
continue;
|
|
|
|
const SrcMgr::FileInfo &FI = SL.getFile();
|
|
if (!FI.getContentCache()->Entry)
|
|
continue;
|
|
|
|
// Build the inclusion stack.
|
|
SourceLocation L = FI.getIncludeLoc();
|
|
InclusionStack.clear();
|
|
while (L.isValid()) {
|
|
PresumedLoc PLoc = SM.getPresumedLoc(L);
|
|
InclusionStack.push_back(cxloc::translateSourceLocation(Ctx, L));
|
|
L = PLoc.getIncludeLoc();
|
|
}
|
|
|
|
// Callback to the client.
|
|
// FIXME: We should have a function to construct CXFiles.
|
|
CB((CXFile) FI.getContentCache()->Entry,
|
|
InclusionStack.data(), InclusionStack.size(), clientData);
|
|
}
|
|
}
|
|
} // end extern C
|