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/*
* Copyright 2018 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "gtest/gtest.h"
#include "src/binary-reader.h"
#include "src/binary-reader-nop.h"
#include "src/leb128.h"
#include "src/opcode.h"
using namespace wabt;
namespace {
struct BinaryReaderError : BinaryReaderNop {
bool OnError(const Error& error) override {
first_error = error;
return true; // Error handled.
}
Error first_error;
};
} // End of anonymous namespace
TEST(BinaryReader, DisabledOpcodes) {
// Use the default features.
ReadBinaryOptions options;
// Loop through all opcodes.
for (uint32_t i = 0; i < static_cast<uint32_t>(Opcode::Invalid); ++i) {
Opcode opcode(static_cast<Opcode::Enum>(i));
if (opcode.IsEnabled(options.features)) {
continue;
}
// Use a shorter name to make the clang-formatted table below look nicer.
std::vector<uint8_t> b = opcode.GetBytes();
assert(b.size() <= 3);
b.resize(3);
uint8_t data[] = {
0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, // magic + version
0x01, 0x04, 0x01, 0x60, 0x00, 0x00, // type section: 1 type, (func)
0x03, 0x02, 0x01, 0x00, // func section: 1 func, type 0
0x0a, 0x07, 0x01, 0x05, 0x00, // code section: 1 func, 0 locals
b[0], b[1], b[2], // The instruction, padded with zeroes
0x0b, // end
};
const size_t size = sizeof(data);
BinaryReaderError reader;
Result result = ReadBinary(data, size, &reader, options);
EXPECT_EQ(Result::Error, result);
// This relies on the binary reader checking whether the opcode is allowed
// before reading any further data needed by the instruction.
const std::string& message = reader.first_error.message;
EXPECT_EQ(0u, message.find("unexpected opcode"))
<< "Got error message: " << message;
}
}
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