Method create

crates/c-api/include/wasmtime/instance.hh:58–77

* \brief Instantiates the module `m` with the provided `imports` * * \param cx the store in which to instantiate the provided module * \param m the module to instantiate * \param imports the list of imports to use to instantiate the module * * This `imports` parameter is expected to line up 1:1 with the imports * required by the `m`. The type of `m` can be inspected to determi

   * type, or if the wrong number of `imports` is provided.
   */
  static TrapResult<Instance> create(Store::Context cx, const Module &m,
                                     const std::vector<Extern> &imports) {
    std::vector<wasmtime_extern_t> raw_imports;
    for (const auto &item : imports) {
      raw_imports.push_back(wasmtime_extern_t{});
      auto &last = raw_imports.back();
      detail::cvt_extern(item, last);
    }
    wasmtime_instance_t instance;
    wasm_trap_t *trap = nullptr;
    auto *error = wasmtime_instance_new(cx.ptr, m.capi(), raw_imports.data(),
                                        raw_imports.size(), &instance, &trap);
    if (error != nullptr) {
      return TrapError(Error(error));
    }
    if (trap != nullptr) {
      return TrapError(Trap(trap));
    }
    return Instance(instance);
  }

  /**
   * \brief Load an instance's export by name.