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-rw-r--r--lib/persistance.h136
1 files changed, 53 insertions, 83 deletions
diff --git a/lib/persistance.h b/lib/persistance.h
index 32e5cb2..863de47 100644
--- a/lib/persistance.h
+++ b/lib/persistance.h
@@ -36,41 +36,43 @@ namespace Persistanace {
virtual void endObject(Stack &);
virtual void beforeValue(Stack &);
virtual SelectionPtr select(const std::string &);
-
- template<typename T> static SelectionPtr make(T & value);
- template<typename S, typename T> static SelectionPtr make_s(T & value);
};
- template<typename T> struct SelectionT : public Selection {
- explicit SelectionT(T & value) : v {value} { }
+ template<typename T> struct SelectionT;
+
+ template<typename T> struct SelectionV : public Selection {
+ explicit SelectionV(T & value) : v {value} { }
void
beforeValue(Stack &) override
{
}
- void
- setValue(T & evalue) override
+ static SelectionPtr
+ make(T & value)
+ {
+ return make_s<SelectionT<T>>(value);
+ }
+
+ template<typename S>
+ static SelectionPtr
+ make_s(T & value)
{
- std::swap(v, evalue);
+ return std::make_unique<S>(value);
}
T & v;
};
- template<typename T>
- SelectionPtr
- Selection::make(T & value)
- {
- return make_s<SelectionT<T>>(value);
- }
+ template<typename T> struct SelectionT : public SelectionV<T> {
+ using SelectionV<T>::SelectionV;
- template<typename S, typename T>
- SelectionPtr
- Selection::make_s(T & value)
- {
- return std::make_unique<S>(value);
- }
+ void
+ setValue(T & evalue) override
+ {
+ std::swap(this->v, evalue);
+ }
+ };
struct PersistanceStore {
// virtual bool persistType(const std::type_info &) = 0;
@@ -79,7 +81,7 @@ namespace Persistanace {
persistValue(const std::string_view key, T & value)
{
if (key == name) {
- sel = Selection::make(value);
+ sel = SelectionV<T>::make(value);
return false;
}
return true;
@@ -88,67 +90,51 @@ namespace Persistanace {
SelectionPtr sel {};
};
- template<glm::length_t L, typename T, glm::qualifier Q> struct SelectionT<glm::vec<L, T, Q>> : public Selection {
- using V = glm::vec<L, float, Q>;
+ template<glm::length_t L, typename T, glm::qualifier Q>
+ struct SelectionT<glm::vec<L, T, Q>> : public SelectionV<glm::vec<L, T, Q>> {
+ using V = glm::vec<L, T, Q>;
- struct Members : public Selection {
- explicit Members(V & value) : v {value} { }
+ struct Members : public SelectionV<V> {
+ using SelectionV<V>::SelectionV;
void
beforeValue(Stack & stk) override
{
- stk.push(make(v[idx++]));
+ stk.push(SelectionV<T>::make(this->v[idx++]));
}
- V & v;
glm::length_t idx {0};
};
- explicit SelectionT(V & value) : v {value} { }
+ using SelectionV<V>::SelectionV;
void
beginArray(Stack & stk) override
{
- stk.push(make_s<Members>(v));
+ stk.push(make_s<Members>(this->v));
}
-
- void
- beforeValue(Stack &) override
- {
- }
-
- V & v;
};
- template<typename T> struct SelectionT<std::vector<T>> : public Selection {
+ template<typename T> struct SelectionT<std::vector<T>> : public SelectionV<std::vector<T>> {
using V = std::vector<T>;
- struct Members : public Selection {
- explicit Members(V & value) : v {value} { }
+ struct Members : public SelectionV<V> {
+ using SelectionV<V>::SelectionV;
void
beforeValue(Stack & stk) override
{
- stk.push(make(v.emplace_back()));
+ stk.push(SelectionV<T>::make(this->v.emplace_back()));
}
-
- V & v;
};
- explicit SelectionT(V & value) : v {value} { }
+ using SelectionV<V>::SelectionV;
void
beginArray(Stack & stk) override
{
- stk.push(make_s<Members>(v));
+ stk.push(make_s<Members>(this->v));
}
-
- void
- beforeValue(Stack &) override
- {
- }
-
- std::vector<T> & v;
};
struct Persistable {
@@ -162,52 +148,45 @@ namespace Persistanace {
static std::unique_ptr<Persistable> callFactory(const std::string_view);
};
- template<typename T> struct SelectionT<std::unique_ptr<T>> : public Selection {
+ template<typename T> struct SelectionT<std::unique_ptr<T>> : public SelectionV<std::unique_ptr<T>> {
using Ptr = std::unique_ptr<T>;
- struct SelectionObj : public Selection {
- struct MakeObjectByTypeName : public Selection {
- explicit MakeObjectByTypeName(Ptr & o) : o {o} { }
-
- void
- beforeValue(Stack &) override
- {
- }
+ struct SelectionObj : public SelectionV<Ptr> {
+ struct MakeObjectByTypeName : public SelectionV<Ptr> {
+ using SelectionV<Ptr>::SelectionV;
void
setValue(std::string & type) override
{
auto no = Persistable::callFactory(type);
if (dynamic_cast<T *>(no.get())) {
- o.reset(static_cast<T *>(no.release()));
+ this->v.reset(static_cast<T *>(no.release()));
}
}
-
- Ptr & o;
};
- explicit SelectionObj(Ptr & o) : v {o} { }
+ using SelectionV<Ptr>::SelectionV;
SelectionPtr
select(const std::string & mbr) override
{
using namespace std::literals;
if (mbr == "@typeid"sv) {
- if (v) {
+ if (this->v) {
throw std::runtime_error("cannot set object type after creation");
}
- return make_s<MakeObjectByTypeName>(v);
+ return make_s<MakeObjectByTypeName>(this->v);
}
else {
- if (!v) {
+ if (!this->v) {
if constexpr (std::is_abstract_v<T>) {
throw std::runtime_error("cannot select member of null object");
}
else {
- v = std::make_unique<T>();
+ this->v = std::make_unique<T>();
}
}
PersistanceStore ps {mbr};
- if (v->persist(ps)) {
+ if (this->v->persist(ps)) {
throw std::runtime_error("cannot find member: " + mbr);
}
return std::move(ps.sel);
@@ -217,37 +196,30 @@ namespace Persistanace {
void
endObject(Stack & stk) override
{
- if (!v) {
+ if (!this->v) {
if constexpr (std::is_abstract_v<T>) {
throw std::runtime_error("cannot default create abstract object");
}
else {
- v = std::make_unique<T>();
+ this->v = std::make_unique<T>();
}
}
stk.pop();
}
-
- Ptr & v;
};
- explicit SelectionT(Ptr & o) : v {o} { }
-
- void
- beforeValue(Stack &) override
- {
- }
+ using SelectionV<Ptr>::SelectionV;
void
setValue(const std::nullptr_t &) override
{
- v.reset();
+ this->v.reset();
}
void
beginObject(Stack & stk) override
{
- stk.push(make_s<SelectionObj>(v));
+ stk.push(make_s<SelectionObj>(this->v));
}
void
@@ -255,8 +227,6 @@ namespace Persistanace {
{
stk.pop();
}
-
- Ptr & v;
};
}