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Fix base script not initialized properly in some cases

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Storing script references to pointer only in result.script_type could
lead to losing the last reference, causing further conversions from
Script* to Ref<Script> to fail.

Now result.script_type_ref is always set first, and then cleared in the
specific case of the script being the owner, to avoid cyclic reference
issues.
This commit is contained in:
PouleyKetchoupp 2020-12-04 10:58:59 -07:00
parent d834789f47
commit 87d73faa66
1 changed files with 8 additions and 5 deletions
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13
modules/gdscript/gdscript_compiler.cpp
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@ -98,7 +98,8 @@ GDScriptDataType GDScriptCompiler::_gdtype_from_datatype(const GDScriptParser::D
} break;
case GDScriptParser::DataType::SCRIPT: {
result.kind = GDScriptDataType::SCRIPT;
result.script_type = Ref<Script>(p_datatype.script_type).ptr();
result.script_type_ref = Ref<Script>(p_datatype.script_type);
result.script_type = result.script_type_ref.ptr();
result.native_type = result.script_type->get_instance_base_type();
} break;
case GDScriptParser::DataType::CLASS: {
@ -124,11 +125,13 @@ GDScriptDataType GDScriptCompiler::_gdtype_from_datatype(const GDScriptParser::D
names.pop_back();
}
result.kind = GDScriptDataType::GDSCRIPT;
result.script_type = script.ptr();
result.script_type_ref = script;
result.script_type = result.script_type_ref.ptr();
result.native_type = script->get_instance_base_type();
} else {
result.kind = GDScriptDataType::GDSCRIPT;
result.script_type = GDScriptCache::get_shallow_script(p_datatype.script_path, main_script->path).ptr();
result.script_type_ref = GDScriptCache::get_shallow_script(p_datatype.script_path, main_script->path);
result.script_type = result.script_type_ref.ptr();
result.native_type = p_datatype.native_type;
}
}
@ -151,8 +154,8 @@ GDScriptDataType GDScriptCompiler::_gdtype_from_datatype(const GDScriptParser::D
// Only hold strong reference to the script if it's not the owner of the
// element qualified with this type, to avoid cyclic references (leaks).
if (result.script_type && result.script_type != p_owner) {
result.script_type_ref = Ref<Script>(result.script_type);
if (result.script_type && result.script_type == p_owner) {
result.script_type_ref = Ref<Script>();
}
return result;