rust/src/test/compile-fail/mutable-class-fields-2.rs

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// error-pattern:assigning to immutable class field
class cat {
priv {
let mutable meows : uint;
}
let how_hungry : int;
fn eat() {
how_hungry -= 5;
}
new(in_x : uint, in_y : int) { meows = in_x; how_hungry = in_y; }
}
fn main() {
let nyan : cat = cat(52u, 99);
nyan.eat();
}