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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.
48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
//===--- CompileJobCacheKey.h - compile cache key methods -------*- 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 - 2017 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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//
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// This file contains declarations of utility methods for creating cache keys
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// for compilation jobs.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_COMPILEJOBCACHEKEY_H
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#define SWIFT_COMPILEJOBCACHEKEY_H
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#include "swift/AST/DiagnosticEngine.h"
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#include "swift/Basic/FileTypes.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/CAS/ObjectStore.h"
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#include "llvm/Support/Error.h"
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namespace swift {
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/// Compute CompileJobBaseKey from swift-frontend command-line arguments.
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/// CompileJobBaseKey represents the core inputs and arguments, and is used as a
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/// base to compute keys for each compiler outputs.
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// TODO: switch to create key from CompilerInvocation after we can canonicalize
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// arguments.
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llvm::Expected<llvm::cas::ObjectRef>
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createCompileJobBaseCacheKey(llvm::cas::ObjectStore &CAS,
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ArrayRef<const char *> Args);
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/// Compute CompileJobKey for the compiler outputs. The key for the output
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/// is computed from the base key for the compilation, the output kind and the
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/// input file path that is associated with this specific output.
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llvm::Expected<llvm::cas::ObjectRef>
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createCompileJobCacheKeyForOutput(llvm::cas::ObjectStore &CAS,
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llvm::cas::ObjectRef BaseKey,
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StringRef ProducingInput);
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} // namespace swift
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#endif
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