llvm-project/clang-tools-extra/clangd/Compiler.h

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//===--- Compiler.h ---------------------------------------------*- C++-*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===---------------------------------------------------------------------===//
//
// Shared utilities for invoking the clang compiler.
// ClangdUnit takes care of much of this, but some features like CodeComplete
// run their own compile actions that share logic.
//
//===---------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILER_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILER_H
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/PrecompiledPreamble.h"
namespace clang {
namespace clangd {
class IgnoreDiagnostics : public DiagnosticConsumer {
public:
void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
const clang::Diagnostic &Info) override {}
};
/// Creates a CompilerInstance with the main file contens overridden.
/// The preamble will be reused unless it is null.
/// Note that the vfs::FileSystem inside returned instance may differ if
/// additional file remappings occur in command-line arguments.
/// On some errors, returns null. When non-null value is returned, it's expected
/// to be consumed by the FrontendAction as it will have a pointer to the
/// MainFile buffer that will only be deleted if BeginSourceFile is called.
std::unique_ptr<CompilerInstance> prepareCompilerInstance(
std::unique_ptr<clang::CompilerInvocation>, const PrecompiledPreamble *,
std::unique_ptr<llvm::MemoryBuffer> MainFile,
std::shared_ptr<PCHContainerOperations>,
IntrusiveRefCntPtr<vfs::FileSystem>, DiagnosticConsumer &);
} // namespace clangd
} // namespace clang
#endif