johannes updated this revision to Diff 112707.
johannes added a comment.
test ordering, class template
https://reviews.llvm.org/D36998
Files:
include/clang/AST/LexicallyOrderedRecursiveASTVisitor.h
include/clang/AST/RecursiveASTVisitor.h
unittests/Tooling/LexicallyOrderedRecursiveASTVisitorTest.cpp
Index: unittests/Tooling/LexicallyOrderedRecursiveASTVisitorTest.cpp
===================================================================
--- unittests/Tooling/LexicallyOrderedRecursiveASTVisitorTest.cpp
+++ unittests/Tooling/LexicallyOrderedRecursiveASTVisitorTest.cpp
@@ -21,8 +21,9 @@
: public LexicallyOrderedRecursiveASTVisitor<LexicallyOrderedDeclVisitor> {
public:
LexicallyOrderedDeclVisitor(DummyMatchVisitor &Matcher,
- const SourceManager &SM)
- : LexicallyOrderedRecursiveASTVisitor(SM), Matcher(Matcher) {}
+ const SourceManager &SM, bool EmitIndices)
+ : LexicallyOrderedRecursiveASTVisitor(SM), Matcher(Matcher),
+ EmitIndices(EmitIndices) {}
bool TraverseDecl(Decl *D) {
TraversalStack.push_back(D);
@@ -35,15 +36,20 @@
private:
DummyMatchVisitor &Matcher;
+ bool EmitIndices;
+ unsigned Index = 0;
llvm::SmallVector<Decl *, 8> TraversalStack;
};
class DummyMatchVisitor : public ExpectedLocationVisitor<DummyMatchVisitor> {
+ bool EmitIndices;
+
public:
+ DummyMatchVisitor(bool EmitIndices = false) : EmitIndices(EmitIndices) {}
bool VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
const ASTContext &Context = TU->getASTContext();
const SourceManager &SM = Context.getSourceManager();
- LexicallyOrderedDeclVisitor SubVisitor(*this, SM);
+ LexicallyOrderedDeclVisitor SubVisitor(*this, SM, EmitIndices);
SubVisitor.TraverseDecl(TU);
return false;
}
@@ -64,9 +70,11 @@
OS << ND->getNameAsString();
else
OS << "???";
- if (isa<DeclContext>(D))
+ if (isa<DeclContext>(D) or isa<TemplateDecl>(D))
OS << "/";
}
+ if (EmitIndices)
+ OS << "@" << Index++;
Matcher.match(OS.str(), D);
return true;
}
@@ -138,4 +146,18 @@
EXPECT_TRUE(Visitor.runOver(Source, DummyMatchVisitor::Lang_OBJC));
}
+TEST(LexicallyOrderedRecursiveASTVisitor, VisitTemplateDecl) {
+ StringRef Source = R"(
+template <class T> T f();
+template <class U, class = void> class Class {};
+)";
+ DummyMatchVisitor Visitor(/*EmitIndices=*/true);
+ Visitor.ExpectMatch("/f/T@0", 2, 11);
+ Visitor.ExpectMatch("/f/f/@1", 2, 20);
+ Visitor.ExpectMatch("/Class/U@2", 3, 11);
+ Visitor.ExpectMatch("/Class/@3", 3, 20);
+ Visitor.ExpectMatch("/Class/Class/@4", 3, 34);
+ EXPECT_TRUE(Visitor.runOver(Source));
+}
+
} // end anonymous namespace
Index: include/clang/AST/RecursiveASTVisitor.h
===================================================================
--- include/clang/AST/RecursiveASTVisitor.h
+++ include/clang/AST/RecursiveASTVisitor.h
@@ -499,10 +499,10 @@
bool canIgnoreChildDeclWhileTraversingDeclContext(const Decl *Child);
-private:
// These are helper methods used by more than one Traverse* method.
bool TraverseTemplateParameterListHelper(TemplateParameterList *TPL);
+private:
// Traverses template parameter lists of either a DeclaratorDecl or TagDecl.
template <typename T>
bool TraverseDeclTemplateParameterLists(T *D);
Index: include/clang/AST/LexicallyOrderedRecursiveASTVisitor.h
===================================================================
--- include/clang/AST/LexicallyOrderedRecursiveASTVisitor.h
+++ include/clang/AST/LexicallyOrderedRecursiveASTVisitor.h
@@ -111,6 +111,21 @@
return true;
}
+#define DEF_TRAVERSE_TEMPLATE_DECL(TMPLDECLKIND) \
+ bool Traverse##TMPLDECLKIND##TemplateDecl(TMPLDECLKIND##TemplateDecl *TD) { \
+ if (!BaseType::TraverseTemplateParameterListHelper( \
+ TD->getTemplateParameters())) \
+ return false; \
+ assert(!BaseType::getDerived().shouldVisitTemplateInstantiations() && \
+ "It does not make sense for most clients to visit template " \
+ "instantiations here."); \
+ return BaseType::getDerived().TraverseDecl(TD->getTemplatedDecl()); \
+ }
+ DEF_TRAVERSE_TEMPLATE_DECL(Class)
+ DEF_TRAVERSE_TEMPLATE_DECL(Var)
+ DEF_TRAVERSE_TEMPLATE_DECL(Function)
+#undef DEF_TRAVERSE_TEMPLATE_DECL
+
private:
bool TraverseAdditionalLexicallyNestedDeclarations() {
// FIXME: Ideally the gathered declarations and the declarations in the
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