1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
//===- unittest/Tooling/RecursiveASTVisitorTests/TraversalScope.cpp -------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "TestVisitor.h"
using namespace clang;
namespace {
class Visitor : public ExpectedLocationVisitor<Visitor, clang::TestVisitor> {
public:
Visitor(ASTContext *Context) { this->Context = Context; }
bool VisitTranslationUnitDecl(TranslationUnitDecl *D) {
auto &SM = D->getParentASTContext().getSourceManager();
Match("TU", SM.getLocForStartOfFile(SM.getMainFileID()));
return true;
}
bool VisitNamedDecl(NamedDecl *D) {
if (!D->isImplicit())
Match(D->getName(), D->getLocation());
return true;
}
};
TEST(RecursiveASTVisitor, RespectsTraversalScope) {
auto AST = tooling::buildASTFromCode(
R"cpp(
struct foo {
struct bar {
struct baz {};
};
};
)cpp",
"foo.cpp", std::make_shared<PCHContainerOperations>());
auto &Ctx = AST->getASTContext();
auto &TU = *Ctx.getTranslationUnitDecl();
auto &Foo = *TU.lookup(&Ctx.Idents.get("foo")).front();
auto &Bar = *cast<DeclContext>(Foo).lookup(&Ctx.Idents.get("bar")).front();
Ctx.setTraversalScope({&Bar});
Visitor V(&Ctx);
V.ExpectMatch("TU", 1, 1);
V.DisallowMatch("foo", 2, 8);
V.ExpectMatch("bar", 3, 10);
V.ExpectMatch("baz", 4, 12);
V.TraverseAST(Ctx);
}
} // end anonymous namespace
|
