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SourceKit/DocSupport: Report sub-module information, if any, for top-level decls imported from clang. rdar://31415030

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This commit is contained in:
Xi Ge
2017-04-10 17:48:47 -07:00
parent 77c3975bd8
commit a6f14faca6
4 changed files with 53 additions and 5 deletions
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40
tools/SourceKit/lib/SwiftLang/SwiftDocSupport.cpp
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@@ -10,6 +10,8 @@
//
//===----------------------------------------------------------------------===//
#include "clang/AST/Decl.h"
#include "clang/Basic/Module.h"
#include "SwiftASTManager.h"
#include "SwiftEditorDiagConsumer.h"
#include "SwiftLangSupport.h"
@@ -391,6 +393,44 @@ static bool initDocEntityInfo(const Decl *D, const Decl *SynthesizedTarget,
}
}
switch(D->getDeclContext()->getContextKind()) {
case DeclContextKind::AbstractClosureExpr:
case DeclContextKind::TopLevelCodeDecl:
case DeclContextKind::AbstractFunctionDecl:
case DeclContextKind::SubscriptDecl:
case DeclContextKind::Initializer:
case DeclContextKind::SerializedLocal:
case DeclContextKind::ExtensionDecl:
case DeclContextKind::GenericTypeDecl:
break;
// We report sub-module information only for top-level decls.
case DeclContextKind::Module:
case DeclContextKind::FileUnit: {
if (auto* CD = D->getClangDecl()) {
if (auto *M = CD->getImportedOwningModule()) {
const clang::Module *Root = M->getTopLevelModule();
// If Root differs from the owning module, then the owning module is
// a sub-module.
if (M != Root) {
llvm::raw_svector_ostream OS(Info.SubModuleName);
llvm::SmallVector<StringRef, 4> Names;
// Climb up and collect sub-module names.
for (auto Current = M; Current != Root; Current = Current->Parent) {
Names.insert(Names.begin(), Current->Name);
}
OS << Root->Name;
std::for_each(Names.begin(), Names.end(),
[&](StringRef N) { OS << "." << N; });
}
}
}
break;
}
}
return false;
}