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add nilptrs, more conversion functions and change how ptrs work

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Pointers now no longer point to the Value struct (the internal wrapper for
values) but to the value itself.
This commit is contained in:
r4
2021-12-28 17:53:27 +01:00
parent befce544e7
commit ba8d2f0702
5 changed files with 51 additions and 10 deletions
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15
tok.c
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@@ -11,6 +11,7 @@ size_t type_size[TypeEnumSize] = {
[TypeInt] = sizeof(((Value*)NULL)->Int),
[TypeBool] = sizeof(((Value*)NULL)->Bool),
[TypeChar] = sizeof(((Value*)NULL)->Char),
[TypePtr] = sizeof(((Value*)NULL)->Ptr),
[TypeArr] = sizeof(((Value*)NULL)->Arr),
};
@@ -47,11 +48,17 @@ void print_value(const Value *v, bool raw) {
else printf("'%c'", v->Char);
}
break;
case TypePtr:
printf("ptr<%s>(", type_str[v->Ptr.type]);
print_value(v->Ptr.val, false);
printf(")");
case TypePtr: {
if (v->Ptr.val) {
printf("ptr<%s>(", type_str[v->Ptr.type]);
Value deref = { .type = v->Ptr.type };
memcpy(&deref.Void, v->Ptr.val, type_size[v->Ptr.type]);
print_value(&deref, false);
printf(")");
} else
printf("ptr<%s>(nil)", type_str[v->Ptr.type]);
break;
}
case TypeArr:
if (v->Arr.is_string) {
if (v->Arr.type != TypeChar)