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//===-- XRefsTests.cpp ---------------------------*- C++ -*--------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Annotations.h"
#include "ClangdUnit.h"
#include "Matchers.h"
#include "XRefs.h"
#include "clang/Frontend/CompilerInvocation.h"
#include "clang/Frontend/PCHContainerOperations.h"
#include "clang/Frontend/Utils.h"
#include "llvm/Support/Path.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace clang {
namespace clangd {
using namespace llvm;
void PrintTo(const DocumentHighlight &V, std::ostream *O) {
llvm::raw_os_ostream OS(*O);
OS << V.range;
if (V.kind == DocumentHighlightKind::Read)
OS << "(r)";
if (V.kind == DocumentHighlightKind::Write)
OS << "(w)";
}
namespace {
using testing::ElementsAre;
using testing::Field;
using testing::Matcher;
using testing::UnorderedElementsAreArray;
// FIXME: this is duplicated with FileIndexTests. Share it.
ParsedAST build(StringRef Code) {
auto CI = createInvocationFromCommandLine({"clang", "-xc++", "Foo.cpp"});
auto Buf = MemoryBuffer::getMemBuffer(Code);
auto AST = ParsedAST::Build(
Context::empty(), std::move(CI), nullptr, std::move(Buf),
std::make_shared<PCHContainerOperations>(), vfs::getRealFileSystem());
assert(AST.hasValue());
return std::move(*AST);
}
// Extracts ranges from an annotated example, and constructs a matcher for a
// highlight set. Ranges should be named $read/$write as appropriate.
Matcher<const std::vector<DocumentHighlight> &>
HighlightsFrom(const Annotations &Test) {
std::vector<DocumentHighlight> Expected;
auto Add = [&](const Range &R, DocumentHighlightKind K) {
Expected.emplace_back();
Expected.back().range = R;
Expected.back().kind = K;
};
for (const auto &Range : Test.ranges())
Add(Range, DocumentHighlightKind::Text);
for (const auto &Range : Test.ranges("read"))
Add(Range, DocumentHighlightKind::Read);
for (const auto &Range : Test.ranges("write"))
Add(Range, DocumentHighlightKind::Write);
return UnorderedElementsAreArray(Expected);
}
TEST(HighlightsTest, All) {
const char *Tests[] = {
R"cpp(// Local variable
int main() {
int [[bonjour]];
$write[[^bonjour]] = 2;
int test1 = $read[[bonjour]];
}
)cpp",
R"cpp(// Struct
namespace ns1 {
struct [[MyClass]] {
static void foo([[MyClass]]*) {}
};
} // namespace ns1
int main() {
ns1::[[My^Class]]* Params;
}
)cpp",
R"cpp(// Function
int [[^foo]](int) {}
int main() {
[[foo]]([[foo]](42));
auto *X = &[[foo]];
}
)cpp",
};
for (const char *Test : Tests) {
Annotations T(Test);
auto AST = build(T.code());
EXPECT_THAT(findDocumentHighlights(Context::empty(), AST, T.point()),
HighlightsFrom(T))
<< Test;
}
}
MATCHER_P(RangeIs, R, "") { return arg.range == R; }
TEST(GoToDefinition, All) {
const char *Tests[] = {
R"cpp(// Local variable
int main() {
[[int bonjour]];
^bonjour = 2;
int test1 = bonjour;
}
)cpp",
R"cpp(// Struct
namespace ns1 {
[[struct MyClass {}]];
} // namespace ns1
int main() {
ns1::My^Class* Params;
}
)cpp",
R"cpp(// Function definition via pointer
[[int foo(int) {}]]
int main() {
auto *X = &^foo;
}
)cpp",
R"cpp(// Function declaration via call
[[int foo(int)]];
int main() {
return ^foo(42);
}
)cpp",
R"cpp(// Field
struct Foo { [[int x]]; };
int main() {
Foo bar;
bar.^x;
}
)cpp",
R"cpp(// Field, member initializer
struct Foo {
[[int x]];
Foo() : ^x(0) {}
};
)cpp",
R"cpp(// Field, GNU old-style field designator
struct Foo { [[int x]]; };
int main() {
Foo bar = { ^x : 1 };
}
)cpp",
R"cpp(// Field, field designator
struct Foo { [[int x]]; };
int main() {
Foo bar = { .^x = 2 };
}
)cpp",
R"cpp(// Method call
struct Foo { [[int x()]]; };
int main() {
Foo bar;
bar.^x();
}
)cpp",
R"cpp(// Typedef
[[typedef int Foo]];
int main() {
^Foo bar;
}
)cpp",
/* FIXME: clangIndex doesn't handle template type parameters
R"cpp(// Template type parameter
template <[[typename T]]>
void foo() { ^T t; }
)cpp", */
R"cpp(// Namespace
[[namespace ns {
struct Foo { static void bar(); }
}]] // namespace ns
int main() { ^ns::Foo::bar(); }
)cpp",
R"cpp(// Macro
#define MACRO 0
#define [[MACRO 1]]
int main() { return ^MACRO; }
#define MACRO 2
#undef macro
)cpp",
};
for (const char *Test : Tests) {
Annotations T(Test);
auto AST = build(T.code());
EXPECT_THAT(findDefinitions(Context::empty(), AST, T.point()),
ElementsAre(RangeIs(T.range())))
<< Test;
}
}
} // namespace
} // namespace clangd
} // namespace clang
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