#ifndef UNOMAP_HPP
#define UNOMAP_HPP

#include <unordered_map>
#include <cassert>
#include <memory>

struct unomap_instance {
	std::unordered_map<const char *, void *> m;
};

static inline unomap_instance unomap_create() {
	unomap_instance ret;
	return ret;
}

static inline void* unomap(void *amap_instance, AMAP_OP op, const char *key, void *ptr) {
	unomap_instance *map = (unomap_instance *) amap_instance;
	if(op == AMAP_GET) {
		try {
			return map->m[key];
		} catch(...) {
			return ptr;
		}
	} else if(op == AMAP_SET) {
		try {
			map->m[key] = ptr;
			return map; // non-null
		} catch(...) {
			return NULL;
		}
	} else { // if(op == AMAP_ERASE) {
		assert(op == AMAP_ERASE);
		map->m = std::move(std::unordered_map<const char *, void *>());
		return (void *)((uint8_t)(NULL) - 1L);
	}
}

#endif // MAPMAP_HPP