blob: cb5ad66b662acc4bdfe19cd3691796361c98f021 (
plain)
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
|
//===--- GlobalCompilationDatabase.h ----------------------------*- C++-*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===---------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_GLOBALCOMPILATIONDATABASE_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_GLOBALCOMPILATIONDATABASE_H
#include "Path.h"
#include "llvm/ADT/StringMap.h"
#include <memory>
#include <mutex>
#include <vector>
namespace clang {
namespace tooling {
class CompilationDatabase;
struct CompileCommand;
} // namespace tooling
namespace clangd {
class Logger;
/// Provides compilation arguments used for parsing C and C++ files.
class GlobalCompilationDatabase {
public:
virtual ~GlobalCompilationDatabase() = default;
/// If there are any known-good commands for building this file, returns one.
virtual llvm::Optional<tooling::CompileCommand>
getCompileCommand(PathRef File) const = 0;
/// Makes a guess at how to build a file.
/// The default implementation just runs clang on the file.
/// Clangd should treat the results as unreliable.
virtual tooling::CompileCommand getFallbackCommand(PathRef File) const;
/// FIXME(ibiryukov): add facilities to track changes to compilation flags of
/// existing targets.
};
/// Gets compile args from tooling::CompilationDatabases built for parent
/// directories.
class DirectoryBasedGlobalCompilationDatabase
: public GlobalCompilationDatabase {
public:
DirectoryBasedGlobalCompilationDatabase(
llvm::Optional<Path> CompileCommandsDir);
/// Scans File's parents looking for compilation databases.
/// Any extra flags will be added.
llvm::Optional<tooling::CompileCommand>
getCompileCommand(PathRef File) const override;
/// Uses the default fallback command, adding any extra flags.
tooling::CompileCommand getFallbackCommand(PathRef File) const override;
/// Sets the extra flags that should be added to a file.
void setExtraFlagsForFile(PathRef File, std::vector<std::string> ExtraFlags);
private:
tooling::CompilationDatabase *getCDBForFile(PathRef File) const;
tooling::CompilationDatabase *getCDBInDirLocked(PathRef File) const;
void addExtraFlags(PathRef File, tooling::CompileCommand &C) const;
mutable std::mutex Mutex;
/// Caches compilation databases loaded from directories(keys are
/// directories).
mutable llvm::StringMap<std::unique_ptr<clang::tooling::CompilationDatabase>>
CompilationDatabases;
/// Stores extra flags per file.
llvm::StringMap<std::vector<std::string>> ExtraFlagsForFile;
/// Used for command argument pointing to folder where compile_commands.json
/// is located.
llvm::Optional<Path> CompileCommandsDir;
};
} // namespace clangd
} // namespace clang
#endif
|
