forked from OSchip/llvm-project
85 lines
3.4 KiB
C++
85 lines
3.4 KiB
C++
//===--- Compiler.h ----------------------------------------------*- C++-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Shared utilities for invoking the clang compiler.
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// Most callers will use this through Preamble/ParsedAST, but some features like
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// CodeComplete run their own compile actions that share these low-level pieces.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILER_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILER_H
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#include "../clang-tidy/ClangTidyOptions.h"
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#include "GlobalCompilationDatabase.h"
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#include "index/Index.h"
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#include "support/ThreadsafeFS.h"
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#include "clang/Frontend/CompilerInstance.h"
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#include "clang/Frontend/PrecompiledPreamble.h"
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#include "clang/Tooling/CompilationDatabase.h"
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namespace clang {
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namespace clangd {
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class IgnoreDiagnostics : public DiagnosticConsumer {
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public:
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static void log(DiagnosticsEngine::Level DiagLevel,
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const clang::Diagnostic &Info);
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void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
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const clang::Diagnostic &Info) override;
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};
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// Options to run clang e.g. when parsing AST.
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struct ParseOptions {
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tidy::ClangTidyOptions ClangTidyOpts;
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bool SuggestMissingIncludes = false;
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bool BuildRecoveryAST = false;
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bool PreserveRecoveryASTType = false;
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};
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/// Information required to run clang, e.g. to parse AST or do code completion.
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struct ParseInputs {
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tooling::CompileCommand CompileCommand;
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const ThreadsafeFS *TFS;
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std::string Contents;
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// Version identifier for Contents, provided by the client and opaque to us.
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std::string Version = "null";
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// Prevent reuse of the cached preamble/AST. Slow! Useful to workaround
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// clangd's assumption that missing header files will stay missing.
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bool ForceRebuild = false;
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// Used to recover from diagnostics (e.g. find missing includes for symbol).
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const SymbolIndex *Index = nullptr;
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ParseOptions Opts = ParseOptions();
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};
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/// Builds compiler invocation that could be used to build AST or preamble.
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std::unique_ptr<CompilerInvocation>
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buildCompilerInvocation(const ParseInputs &Inputs, clang::DiagnosticConsumer &D,
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std::vector<std::string> *CC1Args = nullptr);
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/// Creates a compiler instance, configured so that:
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/// - Contents of the parsed file are remapped to \p MainFile.
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/// - Preamble is overriden to use PCH passed to this function. It means the
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/// changes to the preamble headers or files included in the preamble are
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/// not visible to this compiler instance.
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/// - llvm::vfs::FileSystem is used for all underlying file accesses. The
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/// actual vfs used by the compiler may be an overlay over the passed vfs.
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/// Returns null on errors. When non-null value is returned, it is expected to
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/// be consumed by FrontendAction::BeginSourceFile to properly destroy \p
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/// MainFile.
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std::unique_ptr<CompilerInstance> prepareCompilerInstance(
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std::unique_ptr<clang::CompilerInvocation>, const PrecompiledPreamble *,
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std::unique_ptr<llvm::MemoryBuffer> MainFile,
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IntrusiveRefCntPtr<llvm::vfs::FileSystem>, DiagnosticConsumer &);
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} // namespace clangd
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} // namespace clang
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILER_H
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