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09b8af86fb
Using a virutal output backend to capture all the outputs from swift-frontend invocation. This allows redirecting and/or mirroring compiler outputs to multiple location using different OutputBackend. As an example usage for the virtual outputs, teach swift compiler to check its output determinism by running the compiler invocation twice and compare the hash of all its outputs. Virtual output will be used to enable caching in the future.
83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
//===----- UnitTestSourceFileDepGraphFactory.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 - 2020 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 UnitTestSourceFileDepGraphFactory_h
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#define UnitTestSourceFileDepGraphFactory_h
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#include "swift/AST/AbstractSourceFileDepGraphFactory.h"
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#include "llvm/Support/VirtualOutputBackend.h"
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namespace swift {
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namespace fine_grained_dependencies {
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namespace mocking_fine_grained_dependency_graphs {
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using DependencyDescriptions =
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std::unordered_multimap<NodeKind, std::vector<std::string>>;
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class UnitTestSourceFileDepGraphFactory
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: public AbstractSourceFileDepGraphFactory {
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const DependencyDescriptions dependencyDescriptions;
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public:
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UnitTestSourceFileDepGraphFactory(
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bool hadCompilationError, StringRef swiftDeps,
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Fingerprint fileFingerprint, bool emitDotFileAfterConstruction,
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const DependencyDescriptions &dependencyDescriptions,
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DiagnosticEngine &diags, llvm::vfs::OutputBackend &backend)
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: AbstractSourceFileDepGraphFactory(
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hadCompilationError, swiftDeps, fileFingerprint,
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emitDotFileAfterConstruction, diags, backend),
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dependencyDescriptions(dependencyDescriptions) {}
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~UnitTestSourceFileDepGraphFactory() override = default;
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private:
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void addAllDefinedDecls() override;
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void addAllUsedDecls() override;
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/// For brevity, unit tests specify dependencies by NodeKind,
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/// but for processing, the kind is needed for each entry.
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void forEachEntry(function_ref<void(NodeKind kind, StringRef entry)> fn);
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static const char *defUseSeparator;
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static bool isADefinedDecl(StringRef s);
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void addADefinedDecl(StringRef s, NodeKind kind);
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void addAUsedDecl(StringRef s, NodeKind kind);
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Optional<std::pair<DependencyKey, DependencyKey>> parseAUsedDecl(StringRef s,
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NodeKind);
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/// Parse and return an interface \c DependencyKey
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Optional<DependencyKey> parseADefinedDecl(StringRef s, NodeKind, DeclAspect);
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DependencyKey computeUseKey(StringRef s, bool isCascadingUse);
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/// Return true if when the name appears in a unit test, it represents a
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/// context, not a baseName. Return false if a single name is a baseName,
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/// without context Return None if there should be two names
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static Optional<bool> singleNameIsContext(NodeKind kind);
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static constexpr char nameContextSeparator = ',';
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static constexpr char fingerprintSeparator = '@';
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static std::string parseContext(const StringRef s, const NodeKind kind);
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static std::string parseName(const StringRef s, const NodeKind kind);
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};
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} // namespace mocking_fine_grained_dependency_graphs
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} // namespace fine_grained_dependencies
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} // namespace swift
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#endif /* UnitTestSourceFileDepGraphFactory_h */
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