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GDScript: Forbid using "script" as member name

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Avoids the user breaking things by creating a "script" variable with
something else, effectively overwriting the "script" slot on Object.
This commit is contained in:
George Marques 2020-01-10 19:43:33 -03:00
parent 1c9e71e7d0
commit 4c20d9407d
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GPG key ID: 046BD46A3201E43D
1 changed files with 9 additions and 3 deletions
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12
modules/gdscript/gdscript_parser.cpp
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@ -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;
}