1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
//===- CIndex.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 implements the Clang-C Source Indexing library.
//
//===----------------------------------------------------------------------===//
#include "CIndexer.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclVisitor.h"
#include "clang/AST/StmtVisitor.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/Version.h"
#include "clang/Sema/CodeCompleteConsumer.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Config/llvm-config.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Program.h"
#include <cstdio>
#include <vector>
#include <sstream>
#ifdef __CYGWIN__
#include <cygwin/version.h>
#include <sys/cygwin.h>
#define LLVM_ON_WIN32 1
#endif
#ifdef LLVM_ON_WIN32
#include <windows.h>
#else
#include <dlfcn.h>
#endif
using namespace clang;
std::string CIndexer::getClangResourcesPath() {
// Did we already compute the path?
if (!ResourcesPath.empty())
return ResourcesPath.str();
// Find the location where this library lives (libclang.dylib).
#ifdef LLVM_ON_WIN32
MEMORY_BASIC_INFORMATION mbi;
char path[MAX_PATH];
VirtualQuery((void *)(uintptr_t)clang_createTranslationUnit, &mbi,
sizeof(mbi));
GetModuleFileNameA((HINSTANCE)mbi.AllocationBase, path, MAX_PATH);
#ifdef __CYGWIN__
char w32path[MAX_PATH];
strcpy(w32path, path);
#if CYGWIN_VERSION_API_MAJOR > 0 || CYGWIN_VERSION_API_MINOR >= 181
cygwin_conv_path(CCP_WIN_A_TO_POSIX, w32path, path, MAX_PATH);
#else
cygwin_conv_to_full_posix_path(w32path, path);
#endif
#endif
llvm::sys::Path LibClangPath(path);
LibClangPath.eraseComponent();
#else
// This silly cast below avoids a C++ warning.
Dl_info info;
if (dladdr((void *)(uintptr_t)clang_createTranslationUnit, &info) == 0)
llvm_unreachable("Call to dladdr() failed");
llvm::sys::Path LibClangPath(info.dli_fname);
// We now have the CIndex directory, locate clang relative to it.
LibClangPath.eraseComponent();
#endif
LibClangPath.appendComponent("clang");
LibClangPath.appendComponent(CLANG_VERSION_STRING);
// Cache our result.
ResourcesPath = LibClangPath;
return LibClangPath.str();
}
static llvm::sys::Path GetTemporaryPath() {
// FIXME: This is lame; sys::Path should provide this function (in particular,
// it should know how to find the temporary files dir).
std::string Error;
const char *TmpDir = ::getenv("TMPDIR");
if (!TmpDir)
TmpDir = ::getenv("TEMP");
if (!TmpDir)
TmpDir = ::getenv("TMP");
if (!TmpDir)
TmpDir = "/tmp";
llvm::sys::Path P(TmpDir);
P.appendComponent("remap");
if (P.makeUnique(false, &Error))
return llvm::sys::Path("");
// FIXME: Grumble, makeUnique sometimes leaves the file around!? PR3837.
P.eraseFromDisk(false, 0);
return P;
}
bool clang::RemapFiles(unsigned num_unsaved_files,
struct CXUnsavedFile *unsaved_files,
std::vector<std::string> &RemapArgs,
std::vector<llvm::sys::Path> &TemporaryFiles) {
for (unsigned i = 0; i != num_unsaved_files; ++i) {
// Write the contents of this unsaved file into the temporary file.
llvm::sys::Path SavedFile(GetTemporaryPath());
if (SavedFile.empty())
return true;
std::string ErrorInfo;
llvm::raw_fd_ostream OS(SavedFile.c_str(), ErrorInfo,
llvm::raw_fd_ostream::F_Binary);
if (!ErrorInfo.empty())
return true;
OS.write(unsaved_files[i].Contents, unsaved_files[i].Length);
OS.close();
if (OS.has_error()) {
SavedFile.eraseFromDisk();
OS.clear_error();
return true;
}
// Remap the file.
std::string RemapArg = unsaved_files[i].Filename;
RemapArg += ';';
RemapArg += SavedFile.str();
RemapArgs.push_back("-Xclang");
RemapArgs.push_back("-remap-file");
RemapArgs.push_back("-Xclang");
RemapArgs.push_back(RemapArg);
TemporaryFiles.push_back(SavedFile);
}
return false;
}
|
