__code code1(struct Context* context) {
    context->data[Allocate]->allocate.size = sizeof(struct Node);
    context->data[Allocate]->allocate.next = Code2;
    goto Allocate(context);
}

__code allocate(struct Context* context) {
    context->data[++context->dataNum] = context->heap;
    context->heap += context->data[Allocate]->allocate.size;
    goto (context->code[context->data[Allocate]->allocate.next])(context);
}

__code code2(struct Context* context) {
    // processing content
}