1//===--- StandaloneExecution.h - Standalone execution. -*- C++ ----------*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines standalone execution of clang tools.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_CLANG_TOOLING_STANDALONEEXECUTION_H
14#define LLVM_CLANG_TOOLING_STANDALONEEXECUTION_H
15
16#include "clang/Tooling/ArgumentsAdjusters.h"
17#include "clang/Tooling/Execution.h"
18#include <optional>
19
20namespace clang {
21namespace tooling {
22
23/// A standalone executor that runs FrontendActions on a given set of
24/// TUs in sequence.
25///
26/// By default, this executor uses the following arguments adjusters (as defined
27/// in `clang/Tooling/ArgumentsAdjusters.h`):
28/// - `getClangStripOutputAdjuster()`
29/// - `getClangSyntaxOnlyAdjuster()`
30/// - `getClangStripDependencyFileAdjuster()`
31class StandaloneToolExecutor : public ToolExecutor {
32public:
33 static const char *ExecutorName;
34
35 /// Init with \p CompilationDatabase and the paths of all files to be
36 /// proccessed.
37 StandaloneToolExecutor(
38 const CompilationDatabase &Compilations,
39 llvm::ArrayRef<std::string> SourcePaths,
40 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS =
41 llvm::vfs::getRealFileSystem(),
42 std::shared_ptr<PCHContainerOperations> PCHContainerOps =
43 std::make_shared<PCHContainerOperations>());
44
45 /// Init with \p CommonOptionsParser. This is expected to be used by
46 /// `createExecutorFromCommandLineArgs` based on commandline options.
47 ///
48 /// The executor takes ownership of \p Options.
49 StandaloneToolExecutor(
50 CommonOptionsParser Options,
51 std::shared_ptr<PCHContainerOperations> PCHContainerOps =
52 std::make_shared<PCHContainerOperations>());
53
54 StringRef getExecutorName() const override { return ExecutorName; }
55
56 using ToolExecutor::execute;
57
58 llvm::Error
59 execute(llvm::ArrayRef<
60 std::pair<std::unique_ptr<FrontendActionFactory>, ArgumentsAdjuster>>
61 Actions) override;
62
63 /// Set a \c DiagnosticConsumer to use during parsing.
64 void setDiagnosticConsumer(DiagnosticConsumer *DiagConsumer) {
65 Tool.setDiagnosticConsumer(DiagConsumer);
66 }
67
68 ExecutionContext *getExecutionContext() override { return &Context; };
69
70 ToolResults *getToolResults() override { return &Results; }
71
72 llvm::ArrayRef<std::string> getSourcePaths() const {
73 return Tool.getSourcePaths();
74 }
75
76 void mapVirtualFile(StringRef FilePath, StringRef Content) override {
77 Tool.mapVirtualFile(FilePath, Content);
78 }
79
80 /// Returns the file manager used in the tool.
81 ///
82 /// The file manager is shared between all translation units.
83 FileManager &getFiles() { return Tool.getFiles(); }
84
85private:
86 // Used to store the parser when the executor is initialized with parser.
87 std::optional<CommonOptionsParser> OptionsParser;
88 // FIXME: The standalone executor is currently just a wrapper of `ClangTool`.
89 // Merge `ClangTool` implementation into the this.
90 ClangTool Tool;
91 ExecutionContext Context;
92 InMemoryToolResults Results;
93 ArgumentsAdjuster ArgsAdjuster;
94};
95
96} // end namespace tooling
97} // end namespace clang
98
99#endif // LLVM_CLANG_TOOLING_STANDALONEEXECUTION_H
100

source code of clang/include/clang/Tooling/StandaloneExecution.h