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ef8825bfe6
LLVM has removed llvm::Optional, move over to std::optional. Also clang-format to fix up all the renamed #includes.
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
//===--- ImportDepth.h ----------------------------------------------------===//
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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) 2022 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_IDE_IMPORTDEPTH_H
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#define SWIFT_IDE_IMPORTDEPTH_H
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#include "swift/AST/ASTContext.h"
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#include "swift/Basic/LLVM.h"
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#include "swift/Frontend/FrontendOptions.h"
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#include "llvm/ADT/StringMap.h"
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namespace swift {
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namespace ide {
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/// A utility for calculating the import depth of a given module. Direct imports
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/// have depth 1, imports of those modules have depth 2, etc.
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///
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/// Special modules such as Playground auxiliary sources are considered depth
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/// 0.
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class ImportDepth {
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llvm::StringMap<uint8_t> depths;
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public:
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ImportDepth() = default;
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ImportDepth(ASTContext &context, const FrontendOptions &frontendOptions);
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std::optional<uint8_t> lookup(StringRef module) {
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auto I = depths.find(module);
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if (I == depths.end())
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return std::nullopt;
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return I->getValue();
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}
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};
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} // end namespace ide
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} // end namespace swift
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#endif // SWIFT_IDE_IMPORTDEPTH_H
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