blob: 497189f4c160d854830943389f01a612f7d463b6 (
plain) (
blame)
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
|
//== Yaml.h ---------------------------------------------------- -*- C++ -*--=//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines convenience functions for handling YAML configuration files
// for checkers/packages.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_STATICANALYZER_CHECKER_YAML_H
#define LLVM_CLANG_LIB_STATICANALYZER_CHECKER_YAML_H
#include "clang/StaticAnalyzer/Core/CheckerManager.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/YAMLTraits.h"
namespace clang {
namespace ento {
/// Read the given file from the filesystem and parse it as a yaml file. The
/// template parameter must have a yaml MappingTraits.
/// Emit diagnostic error in case of any failure.
template <class T, class Checker>
llvm::Optional<T> getConfiguration(CheckerManager &Mgr, Checker *Chk,
StringRef Option, StringRef ConfigFile) {
if (ConfigFile.trim().empty())
return None;
llvm::vfs::FileSystem *FS = llvm::vfs::getRealFileSystem().get();
llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
FS->getBufferForFile(ConfigFile.str());
if (std::error_code ec = Buffer.getError()) {
Mgr.reportInvalidCheckerOptionValue(Chk, Option,
"a valid filename instead of '" +
std::string(ConfigFile) + "'");
return None;
}
llvm::yaml::Input Input(Buffer.get()->getBuffer());
T Config;
Input >> Config;
if (std::error_code ec = Input.error()) {
Mgr.reportInvalidCheckerOptionValue(Chk, Option,
"a valid yaml file: " + ec.message());
return None;
}
return Config;
}
} // namespace ento
} // namespace clang
#endif // LLVM_CLANG_LIB_STATICANALYZER_CHECKER_YAML_H
|
