#include <stdio.h>
#include <string.h>
#include "val.h"
#include "vm.h"

ObjString *objstring_new(char *src, size_t len) {
	char *d = M(NULL, (1 + len) * sizeof (char));
	memcpy(d, src, len);
	d[len] = '\0';
	ObjString *o = M(NULL, sizeof(ObjString));
	o->obj.oty = OTY_STRING;
	o->len = len;
	o->b = d;
	return o;
}

void print_val(Val v) {
	switch (v.ty) {
	case TY_NIL:
		printf("nil");
		break;
	case TY_NUM:
		printf("%f",AS_NUM(v));
		break;
	case TY_BOOL:
		printf("%s",AS_BOOL(v) ? "true" : "false");
		break;
	case TY_OBJ:
		switch (AS_OBJ(v)->oty) {
		case OTY_STRING:
			printf("%s", AS_CSTRING(v));
			break;
		}
		break;
	}
}


void println_val(Val v) {
	print_val(v);
	putchar('\n');
}


const char *typename_str(Val v) {
	switch(v.ty) {
	case TY_NIL: return "nil";
	case TY_NUM: return "num";
	case TY_BOOL: return "bool";
	case TY_OBJ:
		switch (AS_OBJ(v)->oty) {
		case OTY_STRING: return "String";
		}
		break;
	}
	return "???";
}