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Prevent circular references to scene being saved, fixes #24384

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This commit is contained in:
Juan Linietsky 2019-02-24 10:45:08 -03:00
parent 755c690252
commit 3ea04c1366
3 changed files with 14 additions and 2 deletions
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7
core/io/resource_format_binary.cpp
View file

@ -1501,7 +1501,7 @@ void ResourceFormatSaverBinaryInstance::write_variant(FileAccess *f, const Varia
if (!resource_set.has(res)) {
f->store_32(OBJECT_EMPTY);
ERR_EXPLAIN("Resource was not pre cached for the resource section, bug?");
ERR_EXPLAIN("Resource was not pre cached for the resource section, most likely due to circular refedence.");
ERR_FAIL();
}
@ -1650,6 +1650,10 @@ void ResourceFormatSaverBinaryInstance::_find_resources(const Variant &p_variant
return;
if (!p_main && (!bundle_resources) && res->get_path().length() && res->get_path().find("::") == -1) {
if (res->get_path() == path) {
ERR_PRINTS("Circular reference to resource being saved found: '" + local_path + "' will be null next time it's loaded.");
return;
}
int idx = external_resources.size();
external_resources[res] = idx;
return;
@ -1774,6 +1778,7 @@ Error ResourceFormatSaverBinaryInstance::save(const String &p_path, const RES &p
takeover_paths = false;
local_path = p_path.get_base_dir();
path = ProjectSettings::get_singleton()->localize_path(p_path);
_find_resources(p_resource, true);

1
core/io/resource_format_binary.h
View file

@ -114,6 +114,7 @@ public:
class ResourceFormatSaverBinaryInstance {
String local_path;
String path;
bool relative_paths;
bool bundle_resources;

8
scene/resources/resource_format_text.cpp
View file

@ -1361,7 +1361,9 @@ String ResourceFormatSaverTextInstance::_write_resource(const RES &res) {
if (internal_resources.has(res)) {
return "SubResource( " + itos(internal_resources[res]) + " )";
} else if (res->get_path().length() && res->get_path().find("::") == -1) {
if (res->get_path() == local_path) { //circular reference attempt
return "null";
}
//external resource
String path = relative_paths ? local_path.path_to_file(res->get_path()) : res->get_path();
return "Resource( \"" + path + "\" )";
@ -1386,6 +1388,10 @@ void ResourceFormatSaverTextInstance::_find_resources(const Variant &p_variant,
return;
if (!p_main && (!bundle_resources) && res->get_path().length() && res->get_path().find("::") == -1) {
if (res->get_path() == local_path) {
ERR_PRINTS("Circular reference to resource being saved found: '"+local_path+"' will be null next time it's loaded.");
return;
}
int index = external_resources.size();
external_resources[res] = index;
return;