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AST: Introduce a Swift runtime availability domain.

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Add support for the `Swift` availability domain, which represents availability
with respect to the Swift runtime. Use of this domain is restricted by the
experimental feature `SwiftRuntimeAvailability`.
This commit is contained in:
Allan Shortlidge
2025-10-07 22:38:41 -07:00
parent 2d8465b043
commit 1a86cd9c26
19 changed files with 213 additions and 48 deletions
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11
lib/Sema/MiscDiagnostics.cpp
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@@ -5131,7 +5131,7 @@ static bool diagnoseAvailabilityCondition(PoundAvailableInfo *info,
info->isUnavailability() ? "#unavailable" : "#available";
bool hasValidSpecs = false;
bool allValidSpecsArePlatform = true;
bool wildcardRequiredInList = false;
std::optional<SourceLoc> wildcardLoc;
llvm::SmallSet<AvailabilityDomain, 8> seenDomains;
for (auto spec : info->getSemanticAvailabilitySpecs(DC)) {
@@ -5144,6 +5144,7 @@ static bool diagnoseAvailabilityCondition(PoundAvailableInfo *info,
auto domain = spec.getDomain();
auto loc = parsedSpec->getStartLoc();
bool hasVersion = !spec.getVersion().empty();
bool mustBeSpecifiedAlone = domain.mustBeSpecifiedAlone();
if (!domain.supportsQueries()) {
diags.diagnose(loc, diag::availability_query_not_allowed, domain,
@@ -5151,7 +5152,7 @@ static bool diagnoseAvailabilityCondition(PoundAvailableInfo *info,
return true;
}
if (!domain.isPlatform() && info->getQueries().size() > 1) {
if (mustBeSpecifiedAlone && info->getQueries().size() > 1) {
diags.diagnose(loc, diag::availability_must_occur_alone, domain,
hasVersion);
return true;
@@ -5199,8 +5200,8 @@ static bool diagnoseAvailabilityCondition(PoundAvailableInfo *info,
}
hasValidSpecs = true;
if (!domain.isPlatform())
allValidSpecsArePlatform = false;
if (!mustBeSpecifiedAlone)
wildcardRequiredInList = true;
}
if (info->isUnavailability()) {
@@ -5210,7 +5211,7 @@ static bool diagnoseAvailabilityCondition(PoundAvailableInfo *info,
diag::unavailability_query_wildcard_not_required)
.fixItRemove(*wildcardLoc);
}
} else if (!wildcardLoc && hasValidSpecs && allValidSpecsArePlatform) {
} else if (!wildcardLoc && hasValidSpecs && wildcardRequiredInList) {
if (info->getQueries().size() > 0) {
auto insertLoc = info->getQueries().back()->getSourceRange().End;
diags.diagnose(insertLoc, diag::availability_query_wildcard_required)