Function member_default 

pub fn member_default(
    ast: &Ast,
    node: &MemberNode,
    type_: Id<TypeNode>,
    place: Expr,
) -> Result<Vec<Stat>, EncodeError>

One member’s default: its @default, or its type’s. §7.2.2.4.4.4.9 puts the explicit one first.

Errors

EncodeError::NoWriter where a @default names a value this column cannot spell as a Lua expression — refused rather than replaced by Table 9’s zero, which is a different sample.