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authorDan Goodliffe <dan@randomdan.homeip.net>2021-04-27 00:53:10 +0100
committerDan Goodliffe <dan@randomdan.homeip.net>2021-11-07 16:41:37 +0000
commit4053cddc33e29b300f8aa457fade194a7331a711 (patch)
tree745f6c8004cb722e6b79ed49499bc78d2d2d2fcb /lib
parentFix the odd difference with arrays and vectors and objects (diff)
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Simplify object creation code
Diffstat (limited to 'lib')
-rw-r--r--lib/persistance.h31
1 files changed, 24 insertions, 7 deletions
diff --git a/lib/persistance.h b/lib/persistance.h
index 2568e8e..866be51 100644
--- a/lib/persistance.h
+++ b/lib/persistance.h
@@ -36,6 +36,9 @@ 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 {
@@ -55,6 +58,20 @@ namespace Persistanace {
T & v;
};
+ template<typename T>
+ SelectionPtr
+ Selection::make(T & value)
+ {
+ return make_s<SelectionT<T>>(value);
+ }
+
+ template<typename S, typename T>
+ SelectionPtr
+ Selection::make_s(T & value)
+ {
+ return std::make_unique<S>(value);
+ }
+
struct PersistanceStore {
// virtual bool persistType(const std::type_info &) = 0;
template<typename T>
@@ -62,7 +79,7 @@ namespace Persistanace {
persistValue(const std::string_view key, T & value)
{
if (key == name) {
- sel = std::make_unique<SelectionT<T>>(std::ref(value));
+ sel = Selection::make(value);
return false;
}
return true;
@@ -80,7 +97,7 @@ namespace Persistanace {
void
beforeValue(Stack & stk) override
{
- stk.push(std::make_unique<SelectionT<T>>(std::ref(v[idx++])));
+ stk.push(make(v[idx++]));
}
V & v;
@@ -92,7 +109,7 @@ namespace Persistanace {
void
BeginArray(Stack & stk) override
{
- stk.push(std::make_unique<Members>(std::ref(v)));
+ stk.push(make_s<Members>(v));
}
void
@@ -112,7 +129,7 @@ namespace Persistanace {
void
beforeValue(Stack & stk) override
{
- stk.push(std::make_unique<SelectionT<T>>(std::ref(v.emplace_back())));
+ stk.push(make(v.emplace_back()));
}
V & v;
@@ -123,7 +140,7 @@ namespace Persistanace {
void
BeginArray(Stack & stk) override
{
- stk.push(std::make_unique<Members>(std::ref(v)));
+ stk.push(make_s<Members>(v));
}
void
@@ -178,7 +195,7 @@ namespace Persistanace {
if (v) {
throw std::runtime_error("cannot set object type after creation");
}
- return std::make_unique<MakeObjectByTypeName>(std::ref(v));
+ return make_s<MakeObjectByTypeName>(v);
}
else {
if (!v) {
@@ -230,7 +247,7 @@ namespace Persistanace {
void
BeginObject(Stack & stk) override
{
- stk.push(std::make_unique<SelectionObj>(v));
+ stk.push(make_s<SelectionObj>(v));
}
void