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[Sema] Report public imports of private modules

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Intro the concept of library access or distribution level to identify
layers of libraries and report public imports of private libraries from
public ones.

rdar://62934005
This commit is contained in:
Alexis Laferrière
2021-03-12 09:32:03 -08:00
parent 58f03e8490
commit cf58bb7eb4
19 changed files with 207 additions and 0 deletions
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21
lib/Frontend/CompilerInvocation.cpp
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@@ -538,6 +538,27 @@ static bool ParseLangArgs(LangOptions &Opts, ArgList &Args,
Args.hasFlag(OPT_enable_swift3_objc_inference,
OPT_disable_swift3_objc_inference, false);
if (const Arg *A = Args.getLastArg(OPT_library_level)) {
StringRef contents = A->getValue();
if (contents == "api") {
Opts.LibraryLevel = LibraryLevel::API;
} else if (contents == "spi") {
Opts.LibraryLevel = LibraryLevel::SPI;
} else {
Opts.LibraryLevel = LibraryLevel::Other;
if (contents != "other") {
// Error on unknown library levels.
auto inFlight = Diags.diagnose(SourceLoc(),
diag::error_unknown_library_level,
contents);
// Only warn for "ipi" as we may use it in the future.
if (contents == "ipi")
inFlight.limitBehavior(DiagnosticBehavior::Warning);
}
}
}
if (Opts.EnableSwift3ObjCInference) {
if (const Arg *A = Args.getLastArg(
OPT_warn_swift3_objc_inference_minimal,