// SPDX-License-Identifier: Apache-2.0

// SPDX-FileCopyrightText: 2019-2024 Second State INC

#include "executor/executor.h"

#include <cstdint>

#include <string_view>

namespace WasmEdge {

namespace Executor {

// Instantiate exports. See "include/executor/executor.h".

Expect<void> Executor::instantiate(Runtime::Instance::ModuleInstance &ModInst,

                                   const AST::ExportSection &ExportSec) {

  // Iterate through the export descriptions and instantiate the exports.

  for (const auto &ExpDesc : ExportSec.getContent()) {

    // Get data from the export description.

    const auto ExtType = ExpDesc.getExternalType();

    std::string_view ExtName = ExpDesc.getExternalName();

    const uint32_t ExtIdx = ExpDesc.getExternalIndex();

    // Export the instance with the name.

    switch (ExtType) {

    case ExternalType::Function:

      ModInst.exportFunction(ExtName, ExtIdx);

      break;

    case ExternalType::Global:

      ModInst.exportGlobal(ExtName, ExtIdx);

      break;

    case ExternalType::Memory:

      ModInst.exportMemory(ExtName, ExtIdx);

      break;

    case ExternalType::Table:

      ModInst.exportTable(ExtName, ExtIdx);

      break;

    case ExternalType::Tag:

      ModInst.exportTag(ExtName, ExtIdx);

      break;

    default:

      break;

    }

  }

  return {};

}

} // namespace Executor

} // namespace WasmEdge