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Introduce "-internal" variant of bridging header import flags

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The flags "-import-bridging-header" and "-import-pch" import a bridging
header, treating the contents as a public import. Introduce
"internal-" variants of both flags that provide the same semantics,
but are intended to treat the imported contents as if they came in
through an internal import. This is just plumbing of the options for
the moment.
This commit is contained in:
Doug Gregor
2025-09-19 11:58:47 -07:00
parent ffa6d65f12
commit 2383d7ab2d
12 changed files with 148 additions and 19 deletions
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20
lib/Frontend/CompilerInvocation.cpp
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@@ -363,6 +363,8 @@ setBridgingHeaderFromFrontendOptions(ClangImporterOptions &ImporterOpts,
if (!FrontendOpts.InputsAndOutputs.hasInputs())
return;
ImporterOpts.BridgingHeaderIsInternal = FrontendOpts.ImportHeaderAsInternal;
// If we aren't asked to output a bridging header, we don't need to set this.
if (ImporterOpts.PrecompiledHeaderOutputDir.empty())
return;
@@ -2109,10 +2111,24 @@ static bool ParseClangImporterArgs(ClangImporterOptions &Opts, ArgList &Args,
else if (Args.hasArg(OPT_emit_pcm) || Args.hasArg(OPT_dump_pcm))
Opts.Mode = ClangImporterOptions::Modes::PrecompiledModule;
if (auto *A = Args.getLastArg(OPT_import_bridging_header))
bool hadNormalBridgingHeader = false;
if (auto *A = Args.getLastArg(OPT_import_bridging_header,
OPT_internal_import_bridging_header)) {
Opts.BridgingHeader = A->getValue();
if (auto *A = Args.getLastArg(OPT_import_pch))
Opts.BridgingHeaderIsInternal =
A->getOption().getID() == OPT_internal_import_bridging_header;
}
if (auto *A = Args.getLastArg(OPT_import_pch, OPT_internal_import_pch)) {
Opts.BridgingHeaderPCH = A->getValue();
bool importAsInternal = A->getOption().getID() == OPT_internal_import_pch;
if (hadNormalBridgingHeader &&
importAsInternal != Opts.BridgingHeaderIsInternal) {
Diags.diagnose(SourceLoc(),
diag::bridging_header_and_pch_internal_mismatch);
}
Opts.BridgingHeaderIsInternal = importAsInternal;
}
Opts.DisableSwiftBridgeAttr |= Args.hasArg(OPT_disable_swift_bridge_attr);
Opts.DisableOverlayModules |= Args.hasArg(OPT_emit_imported_modules);