refactor(furvm): add shared pointer aliases

furvm/src/executor.cpp

@@ -1,23 +1,23 @@
 #include "furvm/executor.hpp"
 
-#include "furvm/context.hpp"
+#include "furvm/context.hpp" // IWYU pragma: keep
 
 namespace furvm {
 
-executor::executor(egzekutor, executor_handle id, const std::shared_ptr<context>& context)
+executor::executor(egzekutor, executor_handle id, const context_p& context)
   : m_id(id), m_context(context) {}
 
 executor::~executor() {
     m_context->m_executors[m_id] = nullptr;
 }
 
-std::shared_ptr<executor> executor::create(const std::shared_ptr<context>& context) {
+executor_p executor::create(const context_p& context) {
     auto ex = std::make_shared<executor>(egzekutor{}, context->m_executors.size(), context);
     context->m_executors.push_back(ex);
     return std::move(ex);
 }
 
-void executor::push_frame(const std::shared_ptr<mod>& mod, std::size_t position) {
+void executor::push_frame(const mod_p& mod, std::size_t position) {
     m_frames.emplace((struct executor::frame){ mod, position, m_stack.size() });
 }
 
@@ -31,18 +31,18 @@ struct executor::frame executor::frame() const {
     return m_frames.top();
 }
 
-void executor::push_thing(const std::shared_ptr<class thing>& thing) {
+void executor::push_thing(const thing_p& thing) {
     m_stack.push(thing);
 }
 
-std::shared_ptr<class thing> executor::pop_thing() {
+thing_p executor::pop_thing() {
     if (m_frames.top().stackBase >= m_stack.size()) return {};
-    std::shared_ptr<class thing> top = std::move(m_stack.top());
+    thing_p top = std::move(m_stack.top());
     m_stack.pop();
     return top;
 }
 
-std::shared_ptr<class thing> executor::thing() const {
+thing_p executor::thing() const {
     if (m_frames.top().stackBase >= m_stack.size()) return {};
     return m_stack.top();
 }