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[interop][SwiftToCxx] Gather initial struct layout information and emit struct stubs with storage in C++

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This change extends the clang header printer to start emitting C++ classes for Swift struct types with the correct struct layout in them (size + alignment)
This commit is contained in:
Alex Lorenz
2022-05-26 17:44:59 -07:00
parent a7053e458f
commit 42c6ff63b8
17 changed files with 295 additions and 51 deletions
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22
lib/PrintAsClang/ModuleContentsWriter.cpp
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@@ -131,10 +131,11 @@ class ModuleWriter {
public:
ModuleWriter(raw_ostream &os, raw_ostream &prologueOS,
llvm::SmallPtrSetImpl<ImportModuleTy> &imports, ModuleDecl &mod,
AccessLevel access, OutputLanguageMode outputLang)
SwiftToClangInteropContext &interopContext, AccessLevel access,
OutputLanguageMode outputLang)
: os(os), imports(imports), M(mod),
printer(M, os, prologueOS, delayedMembers, typeMapping, access,
outputLang),
printer(M, os, prologueOS, delayedMembers, typeMapping, interopContext,
access, outputLang),
outputLangMode(outputLang) {}
/// Returns true if we added the decl's module to the import set, false if
@@ -638,26 +639,25 @@ static AccessLevel getRequiredAccess(const ModuleDecl &M) {
return M.isExternallyConsumed() ? AccessLevel::Public : AccessLevel::Internal;
}
void
swift::printModuleContentsAsObjC(raw_ostream &os,
llvm::SmallPtrSetImpl<ImportModuleTy> &imports,
ModuleDecl &M) {
void swift::printModuleContentsAsObjC(
raw_ostream &os, llvm::SmallPtrSetImpl<ImportModuleTy> &imports,
ModuleDecl &M, SwiftToClangInteropContext &interopContext) {
llvm::raw_null_ostream prologueOS;
ModuleWriter(os, prologueOS, imports, M, getRequiredAccess(M),
ModuleWriter(os, prologueOS, imports, M, interopContext, getRequiredAccess(M),
OutputLanguageMode::ObjC)
.write();
}
void swift::printModuleContentsAsCxx(
raw_ostream &os, llvm::SmallPtrSetImpl<ImportModuleTy> &imports,
ModuleDecl &M) {
ModuleDecl &M, SwiftToClangInteropContext &interopContext) {
std::string moduleContentsBuf;
llvm::raw_string_ostream moduleOS{moduleContentsBuf};
std::string modulePrologueBuf;
llvm::raw_string_ostream prologueOS{modulePrologueBuf};
ModuleWriter(moduleOS, prologueOS, imports, M, getRequiredAccess(M),
OutputLanguageMode::Cxx)
ModuleWriter(moduleOS, prologueOS, imports, M, interopContext,
getRequiredAccess(M), OutputLanguageMode::Cxx)
.write();
// FIXME: refactor.