bytecode/value.c


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#include <stdbool.h>
#include <stdint.h>

#include "panic.h"

#include "value.h"

bool is_int(value v)
{
	return v & 0x1;
}

int64_t to_int(value v)
{
	if (!is_int(v)) {
		panicf("value %lx is not an int!\n", v);
	}
	return (int64_t) v >> 1;
}

value from_int(int64_t i)
{
	return i << 1 | 0x1;
}

bool is_pointer(value v)
{
	return v && !(v & 0x7);
}

value *to_pointer(value v)
{
	if (!is_pointer(v)) {
		panicf("value %lx is not a pointer!\n", v);
	}
	return (value *) v;
}

value from_pointer(value *p)
{
	return (value) p;
}