#ifndef UTIL_POST_H
#define UTIL_POST_H

[[alias("self")]] entity __self;

#define WITH(type, name, value, block) do { \
    type __with_save = (name); \
    name = (value); \
    LAMBDA(block) \
    name = __with_save; \
} while (0)

// Step 1: auto oldself
#if 1
#define SELFPARAM() noref entity this = __self
#define setself(s) (__self = s)
#define self __self
#endif

// Step 2: check SELFPARAM() is present for functions that use self
#if 0
#define SELFPARAM() [[alias("__self")]] noref entity this = __self
#define setself(s) (__self = s)
#define self this
#endif

// Step 3: const self
#if 0
#define SELFPARAM() noref const entity this = __self
entity setself(entity e) { return self = e; }
entity getself() { return self; }
#define self getself()
#endif

// Step 4: enable when possible
#if 0
#define SELFPARAM() noref const entity this = __self
#define self this
#endif

#define spawn() new(entity)

#endif