Function main

example/reflect.c:85–171

int main(int argc, const char* argv[]) {
  // Initialize.
  printf("Initializing...\n");
  wasm_engine_t* engine = wasm_engine_new();
  wasm_store_t* store = wasm_store_new(engine);

  // Load binary.
  printf("Loading binary...\n");
  FILE* file = fopen("reflect.wasm", "rb");
  if (!file) {
    printf("> Error loading module!\n");
    return 1;
  }
  fseek(file, 0L, SEEK_END);
  size_t file_size = ftell(file);
  fseek(file, 0L, SEEK_SET);
  wasm_byte_vec_t binary;
  wasm_byte_vec_new_uninitialized(&binary, file_size);
  if (fread(binary.data, file_size, 1, file) != 1) {
    printf("> Error loading module!\n");
    return 1;
  }
  fclose(file);

  // Compile.
  printf("Compiling module...\n");
  own wasm_module_t* module = wasm_module_new(store, &binary);
  if (!module) {
    printf("> Error compiling module!\n");
    return 1;
  }

  wasm_byte_vec_delete(&binary);

  // Instantiate.
  printf("Instantiating module...\n");
  wasm_extern_vec_t imports = WASM_EMPTY_VEC;
  own wasm_instance_t* instance =
    wasm_instance_new(store, module, &imports, NULL);
  if (!instance) {
    printf("> Error instantiating module!\n");
    return 1;
  }

  // Extract export.
  printf("Extracting export...\n");
  own wasm_exporttype_vec_t export_types;
  own wasm_extern_vec_t exports;
  wasm_module_exports(module, &export_types);
  wasm_instance_exports(instance, &exports);
  assert(exports.size == export_types.size);

  for (size_t i = 0; i < exports.size; ++i) {
    assert(wasm_extern_kind(exports.data[i]) ==
      wasm_externtype_kind(wasm_exporttype_type(export_types.data[i])));
    printf("> export %zu ", i);
    print_name(wasm_exporttype_name(export_types.data[i]));
    printf("\n");