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copy.c
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copy.c
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#include "copy.h"
ObjList *copyList(DictuVM* vm, ObjList *oldList, bool shallow);
ObjDict *copyDict(DictuVM* vm, ObjDict *oldDict, bool shallow) {
ObjDict *dict = newDict(vm);
// Push to stack to avoid GC
push(vm, OBJ_VAL(dict));
for (int i = 0; i <= oldDict->capacityMask; ++i) {
if (IS_EMPTY(oldDict->entries[i].key)) {
continue;
}
Value val = oldDict->entries[i].value;
if (!shallow) {
if (IS_DICT(val)) {
val = OBJ_VAL(copyDict(vm, AS_DICT(val), false));
} else if (IS_LIST(val)) {
val = OBJ_VAL(copyList(vm, AS_LIST(val), false));
} else if (IS_INSTANCE(val)) {
val = OBJ_VAL(copyInstance(vm, AS_INSTANCE(val), false));
}
}
// Push to stack to avoid GC
push(vm, val);
dictSet(vm, dict, oldDict->entries[i].key, val);
pop(vm);
}
pop(vm);
return dict;
}
ObjList *copyList(DictuVM* vm, ObjList *oldList, bool shallow) {
ObjList *list = newList(vm);
// Push to stack to avoid GC
push(vm, OBJ_VAL(list));
for (int i = 0; i < oldList->values.count; ++i) {
Value val = oldList->values.values[i];
if (!shallow) {
if (IS_DICT(val)) {
val = OBJ_VAL(copyDict(vm, AS_DICT(val), false));
} else if (IS_LIST(val)) {
val = OBJ_VAL(copyList(vm, AS_LIST(val), false));
} else if (IS_INSTANCE(val)) {
val = OBJ_VAL(copyInstance(vm, AS_INSTANCE(val), false));
}
}
// Push to stack to avoid GC
push(vm, val);
writeValueArray(vm, &list->values, val);
pop(vm);
}
pop(vm);
return list;
}
ObjInstance *copyInstance(DictuVM* vm, ObjInstance *oldInstance, bool shallow) {
ObjInstance *instance = newInstance(vm, oldInstance->klass);
// Push to stack to avoid GC
push(vm, OBJ_VAL(instance));
if (shallow) {
tableAddAll(vm, &oldInstance->publicAttributes, &instance->publicAttributes);
} else {
for (int i = 0; i < oldInstance->publicAttributes.capacity; i++) {
Entry *entry = &oldInstance->publicAttributes.entries[i];
if (entry->key != NULL) {
Value val = entry->value;
if (IS_LIST(val)) {
val = OBJ_VAL(copyList(vm, AS_LIST(val), false));
} else if (IS_DICT(val)) {
val = OBJ_VAL(copyDict(vm, AS_DICT(val), false));
} else if (IS_INSTANCE(val)) {
val = OBJ_VAL(copyInstance(vm, AS_INSTANCE(val), false));
}
// Push to stack to avoid GC
push(vm, val);
tableSet(vm, &instance->publicAttributes, entry->key, val);
pop(vm);
}
}
for (int i = 0; i < oldInstance->privateAttributes.capacity; i++) {
Entry *entry = &oldInstance->privateAttributes.entries[i];
if (entry->key != NULL) {
Value val = entry->value;
if (IS_LIST(val)) {
val = OBJ_VAL(copyList(vm, AS_LIST(val), false));
} else if (IS_DICT(val)) {
val = OBJ_VAL(copyDict(vm, AS_DICT(val), false));
} else if (IS_INSTANCE(val)) {
val = OBJ_VAL(copyInstance(vm, AS_INSTANCE(val), false));
}
// Push to stack to avoid GC
push(vm, val);
tableSet(vm, &instance->privateAttributes, entry->key, val);
pop(vm);
}
}
}
pop(vm);
return instance;
}
// TODO: Set copy