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88 lines
3.4 KiB
C++
88 lines
3.4 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 BackDeployedAttr;
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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
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annotatedAvailableRangeForAttr(const Decl *D, const AbstractSpecializeAttr *attr,
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ASTContext &ctx);
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/// For the attribute's introduction version, update the platform and version
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/// values to the re-mapped platform's, if using a fallback platform.
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/// Returns `true` if a remap occured.
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static bool updateIntroducedAvailabilityDomainForFallback(
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const SemanticAvailableAttr &attr, const ASTContext &ctx,
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AvailabilityDomain &domain, llvm::VersionTuple &platformVer);
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/// For the attribute's deprecation version, update the platform and version
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/// values to the re-mapped platform's, if using a fallback platform.
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/// Returns `true` if a remap occured.
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static bool updateDeprecatedAvailabilityDomainForFallback(
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const SemanticAvailableAttr &attr, const ASTContext &ctx,
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AvailabilityDomain &domain, llvm::VersionTuple &platformVer);
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/// For the attribute's obsoletion version, update the platform and version
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/// values to the re-mapped platform's, if using a fallback platform.
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/// Returns `true` if a remap occured.
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static bool updateObsoletedAvailabilityDomainForFallback(
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const SemanticAvailableAttr &attr, const ASTContext &ctx,
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AvailabilityDomain &domain, llvm::VersionTuple &platformVer);
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/// For the attribute's before version, update the platform and version
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/// values to the re-mapped platform's, if using a fallback platform.
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/// Returns `true` if a remap occured.
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static bool updateBeforeAvailabilityDomainForFallback(
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const BackDeployedAttr *attr, const ASTContext &ctx,
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AvailabilityDomain &domain, llvm::VersionTuple &platformVer);
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};
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} // end namespace swift
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#endif
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