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//===------------------ ItaniumDemangleTest.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 "llvm/Demangle/ItaniumDemangle.h"
#include "llvm/Support/Allocator.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <cstdlib>
#include <vector>
using namespace llvm;
using namespace llvm::itanium_demangle;
namespace {
class TestAllocator {
BumpPtrAllocator Alloc;
public:
void reset() { Alloc.Reset(); }
template <typename T, typename... Args> T *makeNode(Args &&... args) {
return new (Alloc.Allocate(sizeof(T), alignof(T)))
T(std::forward<Args>(args)...);
}
void *allocateNodeArray(size_t sz) {
return Alloc.Allocate(sizeof(Node *) * sz, alignof(Node *));
}
};
} // namespace
TEST(ItaniumDemangle, MethodOverride) {
struct TestParser : AbstractManglingParser<TestParser, TestAllocator> {
std::vector<char> Types;
TestParser(const char *Str)
: AbstractManglingParser(Str, Str + strlen(Str)) {}
Node *parseType() {
Types.push_back(*First);
return AbstractManglingParser<TestParser, TestAllocator>::parseType();
}
};
TestParser Parser("_Z1fIiEjl");
ASSERT_NE(nullptr, Parser.parse());
EXPECT_THAT(Parser.Types, testing::ElementsAre('i', 'j', 'l'));
}
static std::string toString(OutputBuffer &OB) {
return {OB.getBuffer(), OB.getCurrentPosition()};
}
TEST(ItaniumDemangle, HalfType) {
struct TestParser : AbstractManglingParser<TestParser, TestAllocator> {
std::vector<std::string> Types;
TestParser(const char *Str)
: AbstractManglingParser(Str, Str + strlen(Str)) {}
Node *parseType() {
OutputBuffer OB;
Node *N = AbstractManglingParser<TestParser, TestAllocator>::parseType();
N->printLeft(OB);
StringView Name = N->getBaseName();
if (!Name.empty())
Types.push_back(std::string(Name.begin(), Name.end()));
else
Types.push_back(toString(OB));
std::free(OB.getBuffer());
return N;
}
};
// void f(A<_Float16>, _Float16);
TestParser Parser("_Z1f1AIDF16_EDF16_");
ASSERT_NE(nullptr, Parser.parse());
EXPECT_THAT(Parser.Types, testing::ElementsAre("_Float16", "A", "_Float16"));
}
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