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Availability version remapping currently only applies to code built for visionOS. We plan to introduce more platform kinds and standalone availability domains that will require version remapping, though, so it's time to rearchitect and simplify the code to make it easier to generalize. `AvailabilityDomain` is now responsible for version remapping and much of the previously duplicated utilities have been consolidated.
58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
//===--- AvailabilityInference.h - Swift Availability Utilities -*- 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 - 2025 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 defines utilities for computing declaration availability.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_AST_AVAILABILITY_INFERENCE_H
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#define SWIFT_AST_AVAILABILITY_INFERENCE_H
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#include "swift/AST/AvailabilityRange.h"
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#include "swift/AST/Type.h"
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#include "llvm/Support/VersionTuple.h"
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#include <optional>
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namespace swift {
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class ASTContext;
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class AvailabilityDomain;
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class Decl;
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class SemanticAvailableAttr;
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class AvailabilityInference {
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public:
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/// Infers the common availability required to access an array of
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/// declarations and adds attributes reflecting that availability
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/// to ToDecl.
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static void
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applyInferredAvailableAttrs(Decl *ToDecl,
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ArrayRef<const Decl *> InferredFromDecls);
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static AvailabilityRange inferForType(Type t);
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/// Returns the range of platform versions in which the decl is available.
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static AvailabilityRange availableRange(const Decl *D);
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/// Returns the context for which the declaration
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/// is annotated as available, or None if the declaration
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/// has no availability annotation.
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static std::optional<AvailabilityRange>
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annotatedAvailableRange(const Decl *D);
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static AvailabilityRange annotatedAvailableRangeForAttr(
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const Decl *D, const AbstractSpecializeAttr *attr, ASTContext &ctx);
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};
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} // end namespace swift
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#endif
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