more utility classes for Audio system

1 files changed, 31 insertions, 0 deletions

diff --git a/src/crepe/util/Private.hpp b/src/crepe/util/Private.hpp
new file mode 100644
index 0000000..30c8146
--- /dev/null
+++ b/src/crepe/util/Private.hpp
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <stdexcept>
+#include <format>
+
+#include "Private.h"
+
+namespace crepe {
+
+template <typename T, typename... Args>
+void Private::set(Args &&... args) {
+	T * instance = new T(std::forward<Args>(args)...);
+	this->instance = static_cast<void*>(instance);
+	this->destructor = [](void * instance) {
+		delete static_cast<T*>(instance);
+	};
+	this->type = typeid(T);
+}
+
+template <typename T>
+T & Private::get() {
+	using namespace std;
+	if (this->empty())
+		throw out_of_range("Private: get() called on empty object");
+	type_index requested_type = typeid(T);
+	if (this->type != requested_type)
+		throw logic_error(format("Private: get() called with [T = {}] (actual is [T = {}])", requested_type.name(), this->type.name()));
+	return *static_cast<T*>(this->instance);
+}
+
+}