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