aboutsummaryrefslogtreecommitdiffstats
path: root/include/clang/AST/ASTImporter.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/clang/AST/ASTImporter.h')
-rw-r--r--include/clang/AST/ASTImporter.h43
1 files changed, 37 insertions, 6 deletions
diff --git a/include/clang/AST/ASTImporter.h b/include/clang/AST/ASTImporter.h
index 4a55c120a457..c82dcab35db5 100644
--- a/include/clang/AST/ASTImporter.h
+++ b/include/clang/AST/ASTImporter.h
@@ -87,6 +87,10 @@ class TypeSourceInfo;
using NonEquivalentDeclSet = llvm::DenseSet<std::pair<Decl *, Decl *>>;
using ImportedCXXBaseSpecifierMap =
llvm::DenseMap<const CXXBaseSpecifier *, CXXBaseSpecifier *>;
+ using FileIDImportHandlerType =
+ std::function<void(FileID /*ToID*/, FileID /*FromID*/)>;
+
+ enum class ODRHandlingType { Conservative, Liberal };
// An ImportPath is the list of the AST nodes which we visit during an
// Import call.
@@ -210,6 +214,8 @@ class TypeSourceInfo;
};
private:
+ FileIDImportHandlerType FileIDImportHandler;
+
std::shared_ptr<ASTImporterSharedState> SharedState = nullptr;
/// The path which we go through during the import of a given AST node.
@@ -232,6 +238,8 @@ class TypeSourceInfo;
/// Whether to perform a minimal import.
bool Minimal;
+ ODRHandlingType ODRHandling;
+
/// Whether the last diagnostic came from the "from" context.
bool LastDiagFromFrom = false;
@@ -310,10 +318,20 @@ class TypeSourceInfo;
virtual ~ASTImporter();
+ /// Set a callback function for FileID import handling.
+ /// The function is invoked when a FileID is imported from the From context.
+ /// The imported FileID in the To context and the original FileID in the
+ /// From context is passed to it.
+ void setFileIDImportHandler(FileIDImportHandlerType H) {
+ FileIDImportHandler = H;
+ }
+
/// Whether the importer will perform a minimal import, creating
/// to-be-completed forward declarations when possible.
bool isMinimalImport() const { return Minimal; }
+ void setODRHandling(ODRHandlingType T) { ODRHandling = T; }
+
/// \brief Import the given object, returns the result.
///
/// \param To Import the object into this variable.
@@ -366,6 +384,20 @@ class TypeSourceInfo;
/// imported. If it does not exist nullptr is returned.
TranslationUnitDecl *GetFromTU(Decl *ToD);
+ /// Return the declaration in the "from" context from which the declaration
+ /// in the "to" context was imported. If it was not imported or of the wrong
+ /// type a null value is returned.
+ template <typename DeclT>
+ llvm::Optional<DeclT *> getImportedFromDecl(const DeclT *ToD) const {
+ auto FromI = ImportedFromDecls.find(ToD);
+ if (FromI == ImportedFromDecls.end())
+ return {};
+ auto *FromD = dyn_cast<DeclT>(FromI->second);
+ if (!FromD)
+ return {};
+ return FromD;
+ }
+
/// Import the given declaration context from the "from"
/// AST context into the "to" AST context.
///
@@ -491,12 +523,11 @@ class TypeSourceInfo;
///
/// \param NumDecls the number of conflicting declarations in \p Decls.
///
- /// \returns the name that the newly-imported declaration should have.
- virtual DeclarationName HandleNameConflict(DeclarationName Name,
- DeclContext *DC,
- unsigned IDNS,
- NamedDecl **Decls,
- unsigned NumDecls);
+ /// \returns the name that the newly-imported declaration should have. Or
+ /// an error if we can't handle the name conflict.
+ virtual Expected<DeclarationName>
+ HandleNameConflict(DeclarationName Name, DeclContext *DC, unsigned IDNS,
+ NamedDecl **Decls, unsigned NumDecls);
/// Retrieve the context that AST nodes are being imported into.
ASTContext &getToContext() const { return ToContext; }