87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
//===- CIndex.cpp - Clang-C Source Indexing Library -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the Clang-C Source Indexing library.
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//
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//===----------------------------------------------------------------------===//
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#include "CIndexer.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclVisitor.h"
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#include "clang/AST/StmtVisitor.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Basic/SourceManager.h"
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#include "clang/Basic/Version.h"
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#include "clang/Sema/CodeCompleteConsumer.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/Program.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstdio>
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#include <sstream>
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#include <vector>
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#ifdef __CYGWIN__
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#include <cygwin/version.h>
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#include <sys/cygwin.h>
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#define LLVM_ON_WIN32 1
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#endif
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#ifdef LLVM_ON_WIN32
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#include <windows.h>
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#else
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#include <dlfcn.h>
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#endif
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using namespace clang;
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const std::string &CIndexer::getClangResourcesPath() {
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// Did we already compute the path?
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if (!ResourcesPath.empty())
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return ResourcesPath;
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SmallString<128> LibClangPath;
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// Find the location where this library lives (libclang.dylib).
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#ifdef LLVM_ON_WIN32
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MEMORY_BASIC_INFORMATION mbi;
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char path[MAX_PATH];
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VirtualQuery((void *)(uintptr_t)clang_createTranslationUnit, &mbi,
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sizeof(mbi));
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GetModuleFileNameA((HINSTANCE)mbi.AllocationBase, path, MAX_PATH);
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#ifdef __CYGWIN__
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char w32path[MAX_PATH];
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strcpy(w32path, path);
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#if CYGWIN_VERSION_API_MAJOR > 0 || CYGWIN_VERSION_API_MINOR >= 181
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cygwin_conv_path(CCP_WIN_A_TO_POSIX, w32path, path, MAX_PATH);
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#else
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cygwin_conv_to_full_posix_path(w32path, path);
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#endif
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#endif
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LibClangPath += llvm::sys::path::parent_path(path);
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#else
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// This silly cast below avoids a C++ warning.
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Dl_info info;
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if (dladdr((void *)(uintptr_t)clang_createTranslationUnit, &info) == 0)
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llvm_unreachable("Call to dladdr() failed");
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// We now have the CIndex directory, locate clang relative to it.
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LibClangPath += llvm::sys::path::parent_path(info.dli_fname);
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#endif
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llvm::sys::path::append(LibClangPath, "clang", CLANG_VERSION_STRING);
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// Cache our result.
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ResourcesPath = LibClangPath.str();
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return ResourcesPath;
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}
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