From 4c20d9407d5554a574a787c50cc1c25e0f4462e2 Mon Sep 17 00:00:00 2001 From: George Marques Date: Fri, 10 Jan 2020 19:43:33 -0300 Subject: [PATCH] GDScript: Forbid using "script" as member name Avoids the user breaking things by creating a "script" variable with something else, effectively overwriting the "script" slot on Object. --- modules/gdscript/gdscript_parser.cpp | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/modules/gdscript/gdscript_parser.cpp b/modules/gdscript/gdscript_parser.cpp index 4350a8042a2..dcf5d35e368 100644 --- a/modules/gdscript/gdscript_parser.cpp +++ b/modules/gdscript/gdscript_parser.cpp @@ -7648,6 +7648,11 @@ GDScriptParser::DataType GDScriptParser::_reduce_identifier_type(const DataType void GDScriptParser::_check_class_level_types(ClassNode *p_class) { + // Names of internal object properties that we check to avoid overriding them. + // "__meta__" could also be in here, but since it doesn't really affect object metadata, + // it is okay to override it on script. + StringName script_name = CoreStringNames::get_singleton()->_script; + _mark_line_as_safe(p_class->line); // Constants @@ -7668,8 +7673,9 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { c.expression->set_datatype(expr); DataType tmp; - if (_get_member_type(p_class->base_type, E->key(), tmp)) { - _set_error("The member \"" + String(E->key()) + "\" already exists in a parent class.", c.expression->line); + const StringName &constant_name = E->key(); + if (constant_name == script_name || _get_member_type(p_class->base_type, constant_name, tmp)) { + _set_error("The member \"" + String(constant_name) + "\" already exists in a parent class.", c.expression->line); return; } } @@ -7690,7 +7696,7 @@ void GDScriptParser::_check_class_level_types(ClassNode *p_class) { ClassNode::Member &v = p_class->variables.write[i]; DataType tmp; - if (_get_member_type(p_class->base_type, v.identifier, tmp)) { + if (v.identifier == script_name || _get_member_type(p_class->base_type, v.identifier, tmp)) { _set_error("The member \"" + String(v.identifier) + "\" already exists in a parent class.", v.line); return; }