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Merge pull request #48998 from kleonc/Node-add_child-fix

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Node.add_child Check for cyclic dependency
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Rémi Verschelde 2021-06-15 16:27:18 +02:00 committed by GitHub
parent acdcd37ad2 81388db8a7
commit 7a85e95a4b
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 6 deletions
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15
scene/main/node.cpp
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@ -292,7 +292,7 @@ void Node::_propagate_exit_tree() {
void Node::move_child(Node *p_child, int p_pos) {
ERR_FAIL_NULL(p_child);
ERR_FAIL_INDEX_MSG(p_pos, data.children.size() + 1, "Invalid new child position: " + itos(p_pos) + ".");
ERR_FAIL_INDEX_MSG(p_pos, data.children.size() + 1, vformat("Invalid new child position: %d.", p_pos));
ERR_FAIL_COND_MSG(p_child->data.parent != this, "Child is not a child of this node.");
ERR_FAIL_COND_MSG(data.blocked > 0, "Parent node is busy setting up children, move_child() failed. Consider using call_deferred(\"move_child\") instead (or \"popup\" if this is from a popup).");
@ -1037,8 +1037,11 @@ void Node::_add_child_nocheck(Node *p_child, const StringName &p_name) {
void Node::add_child(Node *p_child, bool p_legible_unique_name) {
ERR_FAIL_NULL(p_child);
ERR_FAIL_COND_MSG(p_child == this, "Can't add child '" + p_child->get_name() + "' to itself."); // adding to itself!
ERR_FAIL_COND_MSG(p_child->data.parent, "Can't add child '" + p_child->get_name() + "' to '" + get_name() + "', already has a parent '" + p_child->data.parent->get_name() + "'."); //Fail if node has a parent
ERR_FAIL_COND_MSG(p_child == this, vformat("Can't add child '%s' to itself.", p_child->get_name())); // adding to itself!
ERR_FAIL_COND_MSG(p_child->data.parent, vformat("Can't add child '%s' to '%s', already has a parent '%s'.", p_child->get_name(), get_name(), p_child->data.parent->get_name())); //Fail if node has a parent
#ifdef DEBUG_ENABLED
ERR_FAIL_COND_MSG(p_child->is_a_parent_of(this), vformat("Can't add child '%s' to '%s' as it would result in a cyclic dependency since '%s' is already a parent of '%s'.", p_child->get_name(), get_name(), p_child->get_name(), get_name()));
#endif
ERR_FAIL_COND_MSG(data.blocked > 0, "Parent node is busy setting up children, add_node() failed. Consider using call_deferred(\"add_child\", child) instead.");
/* Validate name */
@ -1049,7 +1052,7 @@ void Node::add_child(Node *p_child, bool p_legible_unique_name) {
void Node::add_sibling(Node *p_sibling, bool p_legible_unique_name) {
ERR_FAIL_NULL(p_sibling);
ERR_FAIL_COND_MSG(p_sibling == this, "Can't add sibling '" + p_sibling->get_name() + "' to itself."); // adding to itself!
ERR_FAIL_COND_MSG(p_sibling == this, vformat("Can't add sibling '%s' to itself.", p_sibling->get_name())); // adding to itself!
ERR_FAIL_COND_MSG(data.blocked > 0, "Parent node is busy setting up children, add_sibling() failed. Consider using call_deferred(\"add_sibling\", sibling) instead.");
get_parent()->add_child(p_sibling, p_legible_unique_name);
@ -1104,7 +1107,7 @@ void Node::remove_child(Node *p_child) {
}
}
ERR_FAIL_COND_MSG(idx == -1, "Cannot remove child node " + p_child->get_name() + " as it is not a child of this node.");
ERR_FAIL_COND_MSG(idx == -1, vformat("Cannot remove child node '%s' as it is not a child of this node.", p_child->get_name()));
//ERR_FAIL_COND( p_child->data.blocked > 0 );
//if (data.scene) { does not matter
@ -2188,7 +2191,7 @@ void Node::_replace_connections_target(Node *p_new_target) {
if (c.flags & CONNECT_PERSIST) {
c.signal.get_object()->disconnect(c.signal.get_name(), Callable(this, c.callable.get_method()));
bool valid = p_new_target->has_method(c.callable.get_method()) || Ref<Script>(p_new_target->get_script()).is_null() || Ref<Script>(p_new_target->get_script())->has_method(c.callable.get_method());
ERR_CONTINUE_MSG(!valid, "Attempt to connect signal '" + c.signal.get_object()->get_class() + "." + c.signal.get_name() + "' to nonexistent method '" + c.callable.get_object()->get_class() + "." + c.callable.get_method() + "'.");
ERR_CONTINUE_MSG(!valid, vformat("Attempt to connect signal '%s.%s' to nonexistent method '%s.%s'.", c.signal.get_object()->get_class(), c.signal.get_name(), c.callable.get_object()->get_class(), c.callable.get_method()));
c.signal.get_object()->connect(c.signal.get_name(), Callable(p_new_target, c.callable.get_method()), c.binds, c.flags);
}
}