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6c3097657a
Update swift cache key computation mechanism from one cache key per output, to one cache key per primary input file (for all outputs that associated with that input). The new schema allows fewer cache lookups while still preserving most of the flexibility for batch mode and incremental mode.
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
//===------CASOutputBackends.h-- ---------------------------------*-C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_FRONTEND_CASOUTPUTBACKENDS_H
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#define SWIFT_FRONTEND_CASOUTPUTBACKENDS_H
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#include "swift/Frontend/FrontendInputsAndOutputs.h"
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#include "swift/Frontend/FrontendOptions.h"
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#include "llvm/CAS/ActionCache.h"
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#include "llvm/CAS/ObjectStore.h"
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#include "llvm/Support/VirtualOutputBackends.h"
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#include "llvm/Support/VirtualOutputFile.h"
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namespace swift::cas {
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class SwiftCASOutputBackend : public llvm::vfs::OutputBackend {
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void anchor() override;
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protected:
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llvm::IntrusiveRefCntPtr<OutputBackend> cloneImpl() const override;
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llvm::Expected<std::unique_ptr<llvm::vfs::OutputFileImpl>>
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createFileImpl(llvm::StringRef ResolvedPath,
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llvm::Optional<llvm::vfs::OutputConfig> Config) override;
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virtual llvm::Error storeImpl(llvm::StringRef Path, llvm::StringRef Bytes,
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llvm::StringRef CorrespondingInput,
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file_types::ID OutputKind);
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private:
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file_types::ID getOutputFileType(llvm::StringRef Path) const;
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public:
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SwiftCASOutputBackend(llvm::cas::ObjectStore &CAS,
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llvm::cas::ActionCache &Cache,
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llvm::cas::ObjectRef BaseKey,
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const FrontendInputsAndOutputs &InputsAndOutputs,
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FrontendOptions::ActionType Action);
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~SwiftCASOutputBackend();
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llvm::Error storeCachedDiagnostics(llvm::StringRef InputFile,
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llvm::StringRef Bytes);
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private:
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class Implementation;
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Implementation &Impl;
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};
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} // end namespace swift::cas
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#endif
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