// Copyright (c) 2019 Google Inc.

//

// 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 <cstdint>

#include <cstring>  // memcpy

#include <vector>

#include "source/spirv_target_env.h"

#include "spirv-tools/libspirv.hpp"

#include "test/fuzzers/random_generator.h"

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

  spv_target_env target_env = SPV_ENV_UNIVERSAL_1_0;

  if (size > 0) {

    spvtools::fuzzers::RandomGenerator random_gen(data, size);

    target_env = random_gen.GetTargetEnv();

  }

  const spv_context context = spvContextCreate(target_env);

  if (context == nullptr) {

    return 0;

  }

  std::vector<char> contents;

  contents.resize(size);

  memcpy(contents.data(), data, size);

  spv_binary binary = nullptr;

  spv_diagnostic diagnostic = nullptr;

  spvTextToBinaryWithOptions(context, contents.data(), contents.size(),

                             SPV_TEXT_TO_BINARY_OPTION_NONE, &binary,

                             &diagnostic);

  if (diagnostic) {

    spvDiagnosticPrint(diagnostic);

    spvDiagnosticDestroy(diagnostic);

    diagnostic = nullptr;

  }

  if (binary) {

    spvBinaryDestroy(binary);

    binary = nullptr;

  }

  spvTextToBinaryWithOptions(context, contents.data(), contents.size(),

                             SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS,

                             &binary, &diagnostic);

  if (diagnostic) {

    spvDiagnosticPrint(diagnostic);

    spvDiagnosticDestroy(diagnostic);

    diagnostic = nullptr;

  }

  if (binary) {

    spvBinaryDestroy(binary);

    binary = nullptr;

  }

  spvContextDestroy(context);

  return 0;

}