mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
//===--- AvailabilityDomain.cpp - Swift Availability Domains --------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See https://swift.org/LICENSE.txt for license information
|
|
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "swift/AST/AvailabilityDomain.h"
|
|
#include "swift/AST/ASTContext.h"
|
|
#include "swift/AST/Decl.h"
|
|
#include "llvm/ADT/StringSwitch.h"
|
|
|
|
using namespace swift;
|
|
|
|
std::optional<AvailabilityDomain>
|
|
AvailabilityDomain::builtinDomainForString(StringRef string) {
|
|
auto domain = llvm::StringSwitch<std::optional<AvailabilityDomain>>(string)
|
|
.Case("*", AvailabilityDomain::forUniversal())
|
|
.Case("swift", AvailabilityDomain::forSwiftLanguage())
|
|
.Case("_PackageDescription",
|
|
AvailabilityDomain::forPackageDescription())
|
|
.Default(std::nullopt);
|
|
|
|
if (domain)
|
|
return domain;
|
|
|
|
if (auto platformKind = platformFromString(string))
|
|
return AvailabilityDomain::forPlatform(*platformKind);
|
|
|
|
return std::nullopt;
|
|
}
|
|
|
|
bool AvailabilityDomain::isActive(const ASTContext &ctx) const {
|
|
switch (getKind()) {
|
|
case Kind::Universal:
|
|
case Kind::SwiftLanguage:
|
|
case Kind::PackageDescription:
|
|
case Kind::Embedded:
|
|
return true;
|
|
case Kind::Platform:
|
|
return isPlatformActive(getPlatformKind(), ctx.LangOpts);
|
|
}
|
|
}
|
|
|
|
llvm::StringRef AvailabilityDomain::getNameForDiagnostics() const {
|
|
switch (getKind()) {
|
|
case Kind::Universal:
|
|
return "";
|
|
case Kind::SwiftLanguage:
|
|
return "Swift";
|
|
case Kind::PackageDescription:
|
|
return "PackageDescription";
|
|
case Kind::Embedded:
|
|
return "Embedded Swift";
|
|
case Kind::Platform:
|
|
return swift::prettyPlatformString(getPlatformKind());
|
|
}
|
|
}
|
|
|
|
llvm::StringRef AvailabilityDomain::getNameForAttributePrinting() const {
|
|
switch (getKind()) {
|
|
case Kind::Universal:
|
|
return "*";
|
|
case Kind::SwiftLanguage:
|
|
return "swift";
|
|
case Kind::PackageDescription:
|
|
return "_PackageDescription";
|
|
case Kind::Embedded:
|
|
return "Embedded";
|
|
case Kind::Platform:
|
|
return swift::platformString(getPlatformKind());
|
|
}
|
|
}
|
|
|
|
bool AvailabilityDomain::contains(const AvailabilityDomain &other) const {
|
|
// FIXME: [availability] This currently implements something closer to a
|
|
// total ordering instead of the more flexible partial ordering that it
|
|
// would ideally represent. Until AvailabilityContext supports tracking
|
|
// multiple unavailable domains simultaneously, a stricter ordering is
|
|
// necessary to support source compatibility.
|
|
switch (getKind()) {
|
|
case Kind::Universal:
|
|
return true;
|
|
case Kind::SwiftLanguage:
|
|
return !other.isUniversal();
|
|
case Kind::PackageDescription:
|
|
case Kind::Embedded:
|
|
return !other.isUniversal() && !other.isSwiftLanguage();
|
|
case Kind::Platform:
|
|
if (getPlatformKind() == other.getPlatformKind())
|
|
return true;
|
|
return inheritsAvailabilityFromPlatform(other.getPlatformKind(),
|
|
getPlatformKind());
|
|
}
|
|
}
|