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Add an optional language feature for Library Evolution

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Replace the one-off compiler flag for Library Evolution with an
optional language feature. This makes the
`hasFeature(LibraryEvolution)` check work in an `#if`, and is
otherwise just cleanup.

Tracked by rdar://161125572.
This commit is contained in:
Doug Gregor
2025-09-22 17:45:34 -07:00
parent 87cbe5d2a9
commit c68ef1cf71
12 changed files with 28 additions and 28 deletions
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10
lib/Frontend/CompilerInvocation.cpp
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@@ -1011,6 +1011,9 @@ static bool ParseEnabledFeatureArgs(LangOptions &Opts, ArgList &Args,
else if (Args.hasArg(OPT_strict_memory_safety_migrate))
Opts.enableFeature(Feature::StrictMemorySafety, /*forMigration=*/true);
if (Args.hasArg(OPT_enable_library_evolution, OPT_enable_resilience))
Opts.enableFeature(Feature::LibraryEvolution);
return HadError;
}
@@ -1799,7 +1802,7 @@ static bool ParseLangArgs(LangOptions &Opts, ArgList &Args,
HadError = true;
}
if (FrontendOpts.EnableLibraryEvolution) {
if (Opts.hasFeature(Feature::LibraryEvolution)) {
Diags.diagnose(SourceLoc(), diag::evolution_with_embedded);
HadError = true;
}
@@ -2131,7 +2134,8 @@ static bool ParseClangImporterArgs(ClangImporterOptions &Opts, ArgList &Args,
// Until we have some checking in place, internal bridging headers are a
// bit unsafe without library evolution.
if (Opts.BridgingHeaderIsInternal && !FrontendOpts.EnableLibraryEvolution) {
if (Opts.BridgingHeaderIsInternal &&
!LangOpts.hasFeature(Feature::LibraryEvolution)) {
Diags.diagnose(SourceLoc(),
diag::internal_bridging_header_without_library_evolution);
}
@@ -3068,7 +3072,7 @@ static bool ParseSILArgs(SILOptions &Opts, ArgList &Args,
FrontendOptions::ActionType::TypecheckModuleFromInterface)
Diags.diagnose(SourceLoc(), diag::ignoring_option_requires_option,
"-package-cmo", "-allow-non-resilient-access");
} else if (!FEOpts.EnableLibraryEvolution) {
} else if (!LangOpts.hasFeature(Feature::LibraryEvolution)) {
Diags.diagnose(SourceLoc(), diag::package_cmo_requires_library_evolution);
} else {
Opts.EnableSerializePackage = true;