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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.
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
//===--- ParseVersion.h - Parser Swift Version Numbers ----------*- 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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#ifndef SWIFT_PARSE_PARSEVERSION_H
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#define SWIFT_PARSE_PARSEVERSION_H
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#include "swift/Basic/Version.h"
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namespace swift {
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class DiagnosticEngine;
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namespace version {
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/// Returns a version from the currently defined SWIFT_COMPILER_VERSION.
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///
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/// If SWIFT_COMPILER_VERSION is undefined, this will return the empty
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/// compiler version.
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Version getCurrentCompilerVersion();
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} // namespace version
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class VersionParser final {
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public:
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/// Parse a version in the form used by the _compiler_version(string-literal)
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/// \#if condition.
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///
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/// \note This is \em only used for the string literal version, so it includes
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/// backwards-compatibility logic to convert it to something that can be
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/// compared with a modern SWIFT_COMPILER_VERSION.
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static std::optional<version::Version>
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parseCompilerVersionString(StringRef VersionString, SourceLoc Loc,
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DiagnosticEngine *Diags);
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/// Parse a generic version string of the format [0-9]+(.[0-9]+)*
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///
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/// Version components can be any unsigned 64-bit number.
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static std::optional<version::Version>
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parseVersionString(StringRef VersionString, SourceLoc Loc,
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DiagnosticEngine *Diags);
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};
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} // namespace swift
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#endif // SWIFT_PARSE_PARSEVERSION_H
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