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//===------------------ RustDemangleTest.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/Demangle.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <cstdlib>
TEST(RustDemangle, Success) {
char *Demangled =
llvm::rustDemangle("_RNvC1a4main", nullptr, nullptr, nullptr);
EXPECT_STREQ(Demangled, "a::main");
std::free(Demangled);
// With status.
int Status = 0;
Demangled = llvm::rustDemangle("_RNvC1a4main", nullptr, nullptr, &Status);
EXPECT_EQ(Status, llvm::demangle_success);
EXPECT_STREQ(Demangled, "a::main");
std::free(Demangled);
// With status and length.
size_t N = 0;
Demangled = llvm::rustDemangle("_RNvC1a4main", nullptr, &N, &Status);
EXPECT_EQ(Status, llvm::demangle_success);
EXPECT_EQ(N, 8u);
EXPECT_STREQ(Demangled, "a::main");
std::free(Demangled);
}
TEST(RustDemangle, Invalid) {
int Status = 0;
char *Demangled = nullptr;
// Invalid prefix.
Demangled = llvm::rustDemangle("_ABCDEF", nullptr, nullptr, &Status);
EXPECT_EQ(Status, llvm::demangle_invalid_mangled_name);
EXPECT_EQ(Demangled, nullptr);
// Correct prefix but still invalid.
Demangled = llvm::rustDemangle("_RRR", nullptr, nullptr, &Status);
EXPECT_EQ(Status, llvm::demangle_invalid_mangled_name);
EXPECT_EQ(Demangled, nullptr);
}
TEST(RustDemangle, OutputBufferWithoutLength) {
char *Buffer = static_cast<char *>(std::malloc(1024));
ASSERT_NE(Buffer, nullptr);
int Status = 0;
char *Demangled =
llvm::rustDemangle("_RNvC1a4main", Buffer, nullptr, &Status);
EXPECT_EQ(Status, llvm::demangle_invalid_args);
EXPECT_EQ(Demangled, nullptr);
std::free(Buffer);
}
TEST(RustDemangle, OutputBuffer) {
size_t N = 1024;
char *Buffer = static_cast<char *>(std::malloc(N));
ASSERT_NE(Buffer, nullptr);
int Status = 0;
char *Demangled = llvm::rustDemangle("_RNvC1a4main", Buffer, &N, &Status);
EXPECT_EQ(Status, llvm::demangle_success);
EXPECT_EQ(Demangled, Buffer);
EXPECT_STREQ(Demangled, "a::main");
std::free(Demangled);
}
TEST(RustDemangle, SmallOutputBuffer) {
size_t N = 1;
char *Buffer = static_cast<char *>(std::malloc(N));
ASSERT_NE(Buffer, nullptr);
int Status = 0;
char *Demangled = llvm::rustDemangle("_RNvC1a4main", Buffer, &N, &Status);
EXPECT_EQ(Status, llvm::demangle_success);
EXPECT_STREQ(Demangled, "a::main");
std::free(Demangled);
}
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